UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark one)

☒QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended March 31, 2024

☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from _________ to _________

Commission File Number 001-38128

CHECKPOINT THERAPEUTICS, INC.

(Exact name of registrant as specified in its charter)

Delaware		47-2568632
(State or other jurisdiction of incorporation or organization)		(I.R.S. Employer Identification No.)

95 Sawyer Road, Suite 110, Waltham, MA 02453

(Address of principal executive offices and zip code)

(781) 652-4500

(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class		Trading Symbol(s)		Name of each exchange on which registered
Common Stock, par value $0.0001 per share		CKPT		NASDAQ Capital Market

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. YES ☒ NO ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). YES ☒ NO ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See definition of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large Accelerated Filer	☐	Accelerated Filer	☐
Non-accelerated Filer	☒	Smaller Reporting Company	☒
Emerging growth company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). YES ☐ NO ☒

Indicate the number of shares outstanding of each of the registrant’s classes of common stock, as of the latest practicable date.

Class of Common Stock		Outstanding Shares as of May 7, 2024
Class A Common Stock, $0.0001 par value		700,000
Common Stock, $0.0001 par value		36,150,279

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Item 1. Financial Statements.

Checkpoint Therapeutics, Inc.

Condensed Balance Sheets

(in thousands, except share and per share amounts)

(Unaudited)


	March 31, 2024		December 31, 2023
ASSETS
Current Assets:
Cash and cash equivalents	$	11,241	$	4,928
Prepaid expenses and other current assets		734		450
Total current assets		11,975		5,378
Total Assets	$	11,975	$	5,378

LIABILITIES AND STOCKHOLDERS’ EQUITY
Current Liabilities:
Accounts payable and accrued expenses	$	19,159	$	15,485
Accounts payable and accrued expenses - related party		2,941		2,815
Common stock warrant liabilities		125		125
Total current liabilities		22,225		18,425
Total Liabilities		22,225		18,425

Commitments and Contingencies (note 5)

Stockholders’ Equity (Deficit)
Common Stock ($0.0001 par value), 80,000,000 shares authorized as of March 31, 2024 and December 31, 2023
Class A common shares, 700,000 shares issued and outstanding as of March 31, 2024 and December 31, 2023		—		—
Common shares, 34,986,279 and 27,042,035 shares issued and outstanding as of March 31, 2024 and December 31, 2023, respectively		4		3
Common stock issuable, 1,492,915 shares as of March 31, 2024 and December 31, 2023		3,419		3,419
Additional paid-in capital		311,605		297,864
Accumulated deficit		(325,278)		(314,333)
Total Stockholders’ Equity (Deficit)		(10,250)		(13,047)
Total Liabilities and Stockholders’ Equity (Deficit)	$	11,975	$	5,378

The accompanying notes are an integral part of these condensed financial statements.

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Checkpoint Therapeutics, Inc.

Condensed Statements of Operations

(in thousands, except share and per share amounts)

(Unaudited)


	For the three months ended March 31,
	2024		2023
Revenue - related party	$	—	$	35

Operating expenses:
Research and development		8,497		15,826
General and administrative		2,451		2,292
Total operating expenses		10,948		18,118
Loss from operations		(10,948)		(18,083)

Other income:
Interest income		4		43
Gain on common stock warrant liabilities		—		7,566
Foreign currency exchange loss		(1)		—
Total other income		3		7,609
Net Loss	$	(10,945)	$	(10,474)

Loss per Share:
Basic and diluted net loss per common share outstanding	$	(0.33)	$	(0.89)
Basic and diluted weighted average number of common shares outstanding		32,930,977		11,749,139

The accompanying notes are an integral part of these condensed financial statements.

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Checkpoint Therapeutics, Inc.

Condensed Statements of Stockholders’ Equity (Deficit)

(in thousands, except share amounts)

(Unaudited)

For the Three Months Ended March 31, 2024


							Common		Additional				Total
	Class A Common Shares			Common Shares			Stock		Paid-in		Accumulated		Stockholders’
	Shares	Amount		Shares	Amount		Issuable		Capital		Deficit		Equity (Deficit)
Balances at December 31, 2023	700,000	$	—	27,042,035	$	3	$	3,419	$	297,864	$	(314,333)	$	(13,047)
Issuance of common shares, net of offering costs - Registered direct offering	—		—	1,275,000		1		—		12,636		—		12,637
Issuance of common shares - Founders Agreement	—		—	193,905		—		—		396		—		396
Stock-based compensation expense	—		—	2,680,106		—		—		709		—		709
Exercise of pre-funded and common stock warrants, including inducement	—		—	3,795,233		—		—		—		—		—
Net loss	—		—	—		—		—		—		(10,945)		(10,945)
Balances at March 31, 2024	700,000	$	—	34,986,279	$	4	$	3,419	$	311,605	$	(325,278)	$	(10,250)

For the Three Months Ended March 31, 2023


							Common		Additional				Total
	Class A Common Shares			Common Shares			Stock		Paid-in		Accumulated		Stockholders’
	Shares	Amount		Shares	Amount		Issuable		Capital		Deficit		Equity (Deficit)
Balances at December 31, 2022	700,000	$	—	9,586,683	$	1	$	1,885	$	241,117	$	(262,486)	$	(19,483)
Issuance of common shares, net of offering costs - Registered direct offering	—		—	1,180,000		—		—		6,653		—		6,653
Issuance of common shares - Founders Agreement	—		—	404,621		—		(1,885)		2,041		—		156
Stock-based compensation expense	—		—	996,950		—		—		969		—		969
Exercise of pre-funded and common stock warrants	—		—	1,032,816		—		—		—		—		—
Net loss	—		—	—		—		—		—		(10,474)		(10,474)
Balances at March 31, 2023	700,000	$	—	13,201,070	$	1	$	—	$	250,780	$	(272,960)	$	(22,179)

The accompanying notes are an integral part of these condensed financial statements.

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Checkpoint Therapeutics, Inc.

Condensed Statements of Cash Flows

(in thousands)

(Unaudited)


	For the three months ended March 31,
	2024		2023
Cash Flows from Operating Activities:
Net loss	$	(10,945)	$	(10,474)
Adjustments to reconcile net loss to net cash used in operating activities:
Stock-based compensation expense		709		969
Issuance of common shares - Founders Agreement		396		156
Gain on common stock warrant liabilities		—		(7,566)
Changes in operating assets and liabilities:
Prepaid expenses and other current assets		(284)		134
Other receivables - related party		—		38
Accounts payable and accrued expenses		3,524		2,167
Accounts payable and accrued expenses - related party		126		545
Net cash used in operating activities		(6,474)		(14,031)

Cash Flows from Financing Activities:
Proceeds from issuance of common shares - Registered direct offerings		14,000		7,500
Payment of offering costs for the issuance of common shares - Registered direct offerings		(1,213)		(691)
Net cash provided by financing activities		12,787		6,809

Net increase (decrease) in cash and cash equivalents		6,313		(7,222)
Cash and cash equivalents at beginning of period		4,928		12,068
Cash and cash equivalents at end of period	$	11,241	$	4,846

Supplemental disclosure of noncash investing and financing activities:
Issuance of common shares - Founders Agreement	$	—	$	1,885
Issuance of common shares - Registered direct offering (offering costs incurred but not paid)	$	150	$	156

The accompanying notes are an integral part of these condensed financial statements.

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Checkpoint Therapeutics, Inc.

Notes to Condensed Financial Statements

(Unaudited)

Note 1 - Organization and Description of Business Operations

Checkpoint Therapeutics, Inc. (the “Company” or “Checkpoint”) was incorporated in Delaware on November 10, 2014. Checkpoint is a clinical-stage immunotherapy and targeted oncology company focused on the acquisition, development and commercialization of novel treatments for patients with solid tumor cancers. The Company may acquire rights to these technologies by licensing the rights or otherwise acquiring an ownership interest in the technologies, funding their research and development and eventually either out-licensing or bringing the technologies to market.

The Company is a majority-controlled subsidiary of Fortress Biotech, Inc. (“Fortress”).

The Company’s common stock is listed on the NASDAQ Capital Market and trades under the symbol “CKPT.”

Liquidity, Capital Resources and Going Concern

The Company has incurred substantial operating losses since its inception and expects to continue to incur significant operating losses for the foreseeable future and may never become profitable. As of March 31, 2024, the Company had an accumulated deficit of $325.3 million.

In February 2023, the Company closed on a registered direct offering (the “February 2023 Registered Direct Offering”) for the issuance and sale of an aggregate of 1,180,000 shares of its common stock at a purchase price of $5.25 per share in a registered direct offering. In addition, the offering includes 248,572 shares of common stock in the form of pre-funded warrants at a price of $5.2499. In a concurrent private placement, Checkpoint issued and sold Series A warrants to purchase up to 1,428,572 shares of common stock and Series B warrants to purchase up to 1,428,572 shares of common stock. The Series A and B warrants are exercisable immediately upon issuance with an exercise price of $5.00 per share. The Series A warrants will expire five years following the issuance date and the Series B warrants will expire eighteen months following the issuance date. The total gross proceeds from the offering were approximately $7.5 million with net proceeds of approximately $6.7 million after deducting approximately $0.8 million in commissions and other transaction costs.

In April 2023, the Company closed on a registered direct offering (the “April 2023 Registered Direct Offering”) for the issuance and sale of an aggregate of 1,700,000 shares of its common stock at a purchase price of $3.60 per share of common stock in a registered direct offering. In a concurrent private placement, Checkpoint issued and sold Series A warrants to purchase up to 1,700,000 shares of common stock and Series B warrants to purchase up to 1,700,000 shares of common stock. The Series A and B warrants are exercisable immediately upon issuance with an exercise price of $3.35 per share. The Series A warrants will expire five years following the issuance date and the Series B warrants will expire eighteen months following the issuance date. The total gross proceeds from the offering were approximately $6.1 million with net proceeds of approximately $5.5 million after deducting approximately $0.6 million in commissions and other transaction costs.

In May 2023, the Company closed on a registered direct offering (the “May 2023 Registered Direct Offering”) for the issuance and sale of an aggregate of 1,650,000 shares of its common stock at a purchase price of $3.071 per share of common stock in a registered direct offering. In addition, the offering includes 1,606,269 shares of common stock in the form of pre-funded warrants at a price of $3.0709. The common stock and the pre-funded warrants were sold together with Series A warrants to purchase up to 3,256,269 shares of common stock and Series B warrants to purchase up to 3,256,269 shares of common stock. The Series A and B warrants are exercisable immediately upon issuance with an exercise price of $2.821 per share. The Series A warrants will expire five years following the issuance date and the Series B warrants will expire eighteen months following the issuance date. The total gross proceeds from the offering were approximately $10.0 million with net proceeds of approximately $9.1 million after deducting approximately $0.9 million in commissions and other transaction costs.

In July 2023, the Company closed on a registered direct offering (the “July 2023 Registered Direct Offering”) for the issuance and sale of an aggregate of 2,427,186 shares of its common stock at a purchase price of $3.09 per share of common stock in a registered direct offering. In addition, the offering includes 809,062 shares of common stock in the form of pre-funded warrants at a price of $3.0899. The common stock and the pre-funded warrants were sold together with Series A warrants to purchase up to 3,236,248 shares of common stock and Series B warrants to purchase up to 3,236,248 shares of common stock. The Series A and B warrants are exercisable immediately upon issuance with an exercise price of $2.84 per share. The Series A warrants will expire five years following the issuance

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Checkpoint Therapeutics, Inc.

Notes to Condensed Financial Statements

(Unaudited)

date and the Series B warrants will expire eighteen months following the issuance date. The total gross proceeds from the offering were approximately $10.0 million with net proceeds of approximately $9.1 million after deducting approximately $0.9 million in commissions and other transaction costs.

In October 2023, the Company entered into an inducement offer letter agreement (the “October 2023 Inducement”) with a certain holder of its existing warrants to exercise for cash an aggregate of 6,325,354 shares of the Company’s common stock at a reduced exercise price of $1.76 per share. The warrants were issued to the holder on December 16, 2022 with an exercise price of $4.075 per share and on February 22, 2023 with an exercise price of $5.00 per share as part of registered direct offerings. As part of the October 2023 Inducement, the Company agreed to issue new unregistered Series A Warrants to purchase up to 6,325,354 shares of Common Stock and new unregistered Series B Warrants to purchase up to 6,325,354 shares of Common Stock. The Series A and B warrants are exercisable immediately upon issuance with an exercise price of $1.51 per share. The Series A warrants will expire five years following the issuance date and the Series B warrants will expire twenty-four months following the issuance date. The total gross proceeds from the exercise were approximately $11.1 million with net proceeds of approximately $10.0 million after deducting approximately $1.1 million in commissions and other transaction costs.

In January 2024, the Company closed on a registered direct offering (the “January 2024 Registered Direct Offering”) for the issuance and sale of an aggregate of 1,275,000 shares of its common stock at a purchase price of $1.805 per share of common stock. In addition, the offering includes 6,481,233 shares of common stock in the form of pre-funded warrants at a price of $1.8049. In a concurrent private placement, Checkpoint issued and sold common warrants (the “January 2024 Common Stock Warrants”) to purchase up to 7,756,233 shares of common stock. The January 2024 Common Stock Warrants are exercisable immediately upon issuance with an exercise price of $1.68 per share and will expire five years following the issuance date. The total gross proceeds from the January 2024 Registered Direct Offering were approximately $14.0 million with net proceeds of approximately $12.8 million after deducting approximately $1.2 million in commissions and other transaction costs.

The Company expects to continue to use the proceeds from previous financing transactions primarily for general corporate purposes, which may include financing the Company’s growth, developing new or existing product candidates, and funding capital expenditures, acquisitions, and investments.

In accordance with Accounting Standards Codification (“ASC”) 205-40, Going Concern, the Company evaluated whether there are conditions and events, considered in the aggregate, that raise substantial doubt about its ability to continue as a going concern within one year after the date that these financial statements are issued. This evaluation initially does not take into consideration the potential mitigating effect of management’s plans that have not been fully implemented as of the date the financial statements are issued. When substantial doubt exists under this methodology, management evaluates whether the mitigating effect of its plans sufficiently alleviates substantial doubt about the Company’s ability to continue as a going concern. The mitigating effect of management’s plans, however, is only considered if both (1) it is probable that the plans will be effectively implemented within one year after the date that the financial statements are issued, and (2) it is probable that the plans, when implemented, will mitigate the relevant conditions or events that raise substantial doubt about the entity’s ability to continue as a going concern within one year after the date that these consolidated financial statements are issued. In performing its analysis, management excluded certain elements of its operating plan that cannot be considered probable. Under ASC 205-40, the future receipt of potential funding from future equity or debt issuances and other potential sources such as partnerships cannot be considered probable at this time because these plans are not entirely within the Company’s control nor have these plans been approved by the Board of Directors as of the date of these financial statements.

The Company believes that its cash and cash equivalents are only sufficient to fund its operating expenses into the third quarter of 2024, assuming no exercises of outstanding cash warrants. The Company has suffered recurring losses from operations and has a net capital deficiency that raises substantial doubt regarding the Company’s ability to continue as a going concern for a period of one year after the date that these financial statements are issued. Management’s plans to alleviate the conditions that raise substantial doubt include reduced 2024 spending, including projected savings through delaying the development timelines of certain programs and the pursuit of additional cash resources through public or private equity or debt financings and potential partnerships. Management has concluded that the likelihood that its plan to successfully obtain sufficient funding from one or more of these sources, or adequately reduce expenditures, while reasonably possible, is less than probable. Accordingly, the Company has concluded that substantial doubt exists about the Company’s ability to continue as a going concern for a period of at least 12 months from the date of issuance of these financial statements. The Company’s estimate as to how long it expects its existing cash to be able to continue to fund its operations is based on assumptions that may prove to be wrong, and it could use its available capital resources sooner than it currently expects. Further,

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Checkpoint Therapeutics, Inc.

Notes to Condensed Financial Statements

(Unaudited)

In accordance with Accounting Standards Codification (“ASC”) 730-10-25-1, Research and Development, costs incurred in obtaining technology licenses are charged to research and development expense if the technology licensed has not reached commercial feasibility and has no alternative future use. Such licenses purchased by the Company require substantial completion of research and development, regulatory and marketing approval efforts in order to reach commercial feasibility and have no alternative future use.

Annual Equity Fee

Under the Founders Agreement with Checkpoint dated March 17, 2015, and amended and restated in July 2016 and October 2017 (the “Founders Agreement”), Fortress is entitled to an annual equity fee on January 1 of each year equal to 2.5% of fully diluted outstanding equity of the Company, payable in Checkpoint common shares (“Annual Equity Fee”). The Annual Equity Fee was part of the consideration payable for formation of the Company, identification of certain assets, including the license contributed to Checkpoint by Fortress (see Note 4).

The Company records the Annual Equity Fee in connection with the Founders Agreement with Fortress as contingent consideration. Contingent consideration is recorded when probable and reasonably estimable. Due to the nature of the Company’s assets and stage of development, future share prices and shares outstanding cannot be estimated prior to the issuance of the Annual Equity Fee. Due to these uncertainties, the Company has concluded that it is unable to reasonably estimate the contingent consideration until shares are actually issued on January 1 of each year.

Pursuant to the Founders Agreement, the Company was to issue 1,492,915 shares of common stock to Fortress for the Annual Equity Fee, representing 2.5% of the fully diluted outstanding equity of Checkpoint on January 1, 2024. The Company did not have enough unreserved authorized shares under its certificate of incorporation on January 1, 2024 to issue the shares for the Annual Equity Fee. Therefore, in December 2023, Fortress and Checkpoint mutually agreed to defer the issuance until such time as certificate of incorporation has been amended in order to increase the number of authorized that may be issued thereunder. Because the number of outstanding shares issuable to Fortress was determinable on January 1, 2024 prior to the issuance of the December 31, 2023 financial statements, the Company recorded approximately $3.4 million in research and development expense and a credit to Common shares issuable - Founders Agreement during the year ended December 31, 2023.

Stock-Based Compensation Expenses

The Company expenses stock-based compensation over the requisite service period based on the estimated grant-date fair value of the awards and forfeiture rates. The Company accounts for forfeitures as they occur.

The Company estimates the fair value of stock option grants using the Black-Scholes Model. The assumptions used in calculating the fair value of stock-based awards represent management’s best estimates and involve inherent uncertainties and the application of management’s judgment. All stock-based compensation costs are recorded in general and administrative or research and development costs in the Condensed Statements of Operations based upon the underlying individual’s role at the Company.

In addition, because some of the restricted stock, restricted stock units and options issued to employees, directors and consultants vest upon achievement of certain milestones, the total expense is uncertain. Compensation expense for such awards that vest upon the achievement of milestones is recognized when the achievement of such milestones is probable.

Common Stock Warrant Liability

The Company has issued freestanding warrants to purchase shares of its common stock in connection with its financing activities and accounts for them in accordance with applicable accounting guidance as either liabilities or as equity instruments depending on the specific terms of the warrant agreements. Warrants classified as liabilities are remeasured each period they are outstanding. Any resulting gain or loss related to the change in the fair value of the warrant liability is recognized in gain (loss) on common stock warrant liabilities, a component of other income (loss), in the Condensed Statements of Operations.

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Checkpoint Therapeutics, Inc.

Notes to Condensed Financial Statements

(Unaudited)

Net Loss per Share

Net loss per share is computed by dividing net loss by the weighted average number of common shares outstanding during the period. Diluted net loss per share does not reflect the effect of shares of common stock to be issued upon the exercise of stock options and warrants, as their inclusion would be anti-dilutive. The following table summarizes potentially dilutive securities outstanding at March 31, 2024 and 2023 that were excluded from the computation of diluted net loss per share, as they would be anti-dilutive:


	March 31,
	2024	2023
Warrants (Note 6)	42,139,278	6,516,211
Stock options (Note 6)	127,000	27,000
Unvested restricted stock awards (Note 6)	3,742,676	1,251,072
Unvested restricted stock units (Note 6)	598,246	619,884
Total	46,607,200	8,414,167

Comprehensive Loss

The Company has no components of comprehensive loss other than net loss. Thus, comprehensive loss is the same as net loss for the periods presented.

Recently Issued Accounting Pronouncements

During the three-month period ended March 31, 2024, there were no new accounting pronouncements or updates to recently issued accounting pronouncements as disclosed in the Company’s Form 10-K for the year ended December 31, 2023 that affect the Company’s present or future results of operations, overall financial condition, liquidity or disclosures.

Note 3 – License Agreements

Dana-Farber Cancer Institute

In March 2015, the Company entered into an exclusive license agreement with Dana-Farber Cancer Institute (“Dana Farber”) to develop a portfolio of fully human immuno-oncology targeted antibodies targeting PD-L1, Glucocorticoid-induced TNFR-related protein (“GITR”) and Carbonic anhydrase IX (“CAIX”). Dana-Farber is eligible to receive payments of up to an aggregate of approximately $21.5 million for each licensed product upon the Company’s successful achievement of certain clinical development, regulatory and first commercial sale milestones, of which $5.0 million of these milestones have been expensed for the antibody targeting PD-L1. In addition, Dana-Farber is eligible to receive up to an aggregate of $60.0 million upon the Company’s successful achievement of certain sales milestones based on aggregate net sales, in addition to royalty payments based on a tiered low to mid-single digit percentage of net sales. Dana-Farber also receives an annual license maintenance fee of $50,000, which is creditable against future milestone payments or royalties.

In connection with the license agreement with Dana-Farber, the Company entered into a collaboration agreement with TG Therapeutics, Inc. (“TGTX”) to develop and commercialize the anti-PD-L1 and anti-GITR antibody research programs in the field of hematological malignancies, while the Company retained the right to develop and commercialize these antibodies in solid tumors. Michael Weiss, Chairman of the Board of Directors of Checkpoint and Fortress’ Executive Vice Chairman, Strategic Development, is also the Executive Chairman, President and Chief Executive Officer and a stockholder of TGTX. Effective September 30, 2023, the Company and TGTX agreed to mutually terminate the collaboration agreement. For the three months ended March 31, 2023, the Company recognized approximately $29,000 in revenue related to the collaboration agreement in the Condensed Statements of Operations.

Adimab, LLC

In October 2015, Fortress entered into a collaboration agreement with Adimab, LLC (“Adimab”) to discover and optimize antibodies using their proprietary core technology platform. Under this agreement, Adimab optimized cosibelimab, the Company’s anti-PD-L1 antibody which it originally licensed from Dana-Farber. In January 2019, Fortress transferred the rights to the optimized antibody to the

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Checkpoint Therapeutics, Inc.

Notes to Condensed Financial Statements

(Unaudited)

Company, and Checkpoint entered into a collaboration agreement directly with Adimab on the same day. Under the terms of the agreement, Adimab is eligible to receive additional payments from the Company of up to an aggregate of approximately $2.5 million upon various filings for regulatory approvals to commercialize the product. In addition, Adimab is eligible to receive royalty payments based on a tiered low single digit percentage of net sales.

In February 2023 the Company expensed a non-refundable milestone payment of $2.2 million to research and development expenses upon the United States Food and Drug Administration’s filing acceptance of the Company’s Biologics License Application (“BLA”) for cosibelimab in metastatic or locally advanced cutaneous squamous cell carcinoma.

NeuPharma, Inc.

In March 2015, Fortress entered into an exclusive license agreement with NeuPharma, Inc. (“NeuPharma”) to develop and commercialize novel irreversible, 3rd generation EGFR inhibitors, including olafertinib, on a worldwide basis other than certain Asian countries. On the same date, Fortress assigned all of its right and interest in the EGFR inhibitors to the Company. NeuPharma is eligible to receive additional payments of up to an aggregate of approximately $39.0 million upon the Company’s successful achievement of certain clinical development and regulatory milestones covering up to three indications, of which $22.5 million are due upon various regulatory approvals to commercialize the products. In addition, NeuPharma is eligible to receive payments of up to an aggregate of $40.0 million upon the Company’s successful achievement of certain sales milestones based on aggregate net sales across all indications, in addition to royalty payments based on a tiered mid to high-single digit percentage of net sales.

Jubilant Biosys Limited

In May 2016, the Company entered into a license agreement with Jubilant Biosys Limited (“Jubilant”), whereby the Company obtained an exclusive, worldwide license to Jubilant’s family of patents covering compounds that inhibit BET proteins such as BRD4, including CK-103. Jubilant is eligible to receive payments up to an aggregate of approximately $88.4 million upon the Company’s successful achievement of certain clinical development and regulatory milestones, of which $59.5 million are due upon various regulatory approvals to commercialize the products. In addition, Jubilant is eligible to receive payments up to an aggregate of $89.3 million upon the Company’s successful achievement of certain sales milestones based on aggregate net sales, in addition to royalty payments based on a tiered low to mid-single digit percentage of net sales.

In connection with the license agreement with Jubilant, the Company entered into a sublicense agreement with TGTX, a related party, to develop and commercialize the compounds licensed in the field of hematological malignancies, while the Company retained the right to develop and commercialize these compounds in the field of solid tumors. Effective September 30, 2023, the Company and TGTX agreed to mutually terminate the sublicense agreement. For the three months ended March 31, 2023, the Company recognized approximately $6,000 in revenue related to the sublicense agreement in the Condensed Statements of Operations.

The collaborations with TGTX each contained single material performance obligations under Topic 606, which was the granting of a license that is functional intellectual property. The Company’s performance obligations were satisfied at the point in time when TGTX had the ability to use and benefit from the right to use the intellectual property. The performance obligations of the original agreements were satisfied prior to the adoption of Topic 606. The performance obligation of the amendment to the collaboration agreement was satisfied in June 2019.

Note 4 – Related Party Agreements

Founders Agreement and Management Services Agreement with Fortress

Effective March 17, 2015, the Company entered into a Founders Agreement with Fortress, which was amended in July 2016 and October 2017. The Founders Agreement provides, that in exchange for the time and capital expended in the formation of Checkpoint and the identification of specific assets the acquisition of which resulted in the formation of a viable emerging growth life science company, the Company shall: (i) issue annually to Fortress, on January 1 of each year, shares of common stock equal to two and one-half percent (2.5%) of the fully diluted outstanding equity of Checkpoint at the time of issuance; (ii) pay an equity fee in shares of common stock, payable within five (5) business days of the closing of any equity or debt financing for Checkpoint or any of its respective subsidiaries that occurs after the effective date of the Founders Agreement and ending on the date when Fortress no longer has majority voting

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Checkpoint Therapeutics, Inc.

Notes to Condensed Financial Statements

(Unaudited)

control in Checkpoint’s voting equity, equal to two and one-half percent (2.5%) of the gross amount of any such equity or debt financing; and (iii) pay a cash fee equal to four and one half percent (4.5%) of Checkpoint’s annual net sales, payable on an annual basis, within ninety (90) days of the end of each calendar year. In the event of a change in control (as it is defined in the Founders Agreement), Checkpoint will pay a one-time change in control fee equal to five times (5x) the product of (i) monthly net sales for the twelve (12) months immediately preceding the change in control and (ii) four and one-half percent (4.5%). The Founders Agreement has a term of fifteen years, after which it automatically renews for one-year periods unless Fortress gives the Company notice of termination. The Founders Agreement will also automatically terminate upon a change of control.

Effective March 17, 2015, the Company entered into a Management Services Agreement (the “MSA”) with Fortress. Pursuant to the terms of the MSA, for a period of five (5) years, Fortress will render advisory and consulting services to the Company. Services provided under the MSA may include, without limitation, (i) advice and assistance concerning any and all aspects of Checkpoint’s operations, clinical trials, financial planning and strategic transactions and financings and (ii) conducting relations on behalf of the Company with accountants, attorneys, financial advisors and other professionals (collectively, the “Services”). The Company is obligated to utilize clinical research services, medical education, communication and marketing services and investor relations/public relation services of companies or individuals designated by Fortress, provided those services are offered at market prices. However, the Company is not obligated to take or act upon any advice rendered from Fortress and Fortress shall not be liable for any of the Company’s actions or inactions based upon their advice. Fortress and its affiliates, including all members of its Board of Directors, have been contractually exempt from fiduciary duties to the Company relating to corporate opportunities. In consideration for the Services, the Company will pay Fortress an annual consulting fee of $0.5 million (the “Annual Consulting Fee”), payable in advance in equal quarterly installments on the first business day of each calendar quarter in each year, provided, however, that such Annual Consulting Fee shall be increased to $1.0 million for each calendar year in which the Company has net assets in excess of $100 million at the beginning of the calendar year. The MSA shall be automatically extended for additional five-year periods unless Fortress or the Company provides notice to the other party of its desire not to automatically extend the term. For each of the three months ended March 31, 2024 and 2023, the Company recognized $125,000 in expense in the Condensed Statements of Operations related to the MSA.

Caribe BioAdvisors, LLC

In December 2016, the Company entered into an advisory agreement effective January 1, 2017 with Caribe BioAdvisors, LLC (“Caribe”), owned by Michael Weiss, to provide the advisory services of Mr. Weiss as Chairman of the Board. Pursuant to the agreement, Caribe will be paid an annual cash fee of $60,000, in addition to any and all annual equity incentive grants paid to members of the board. In June 2023, Mr. Weiss assigned the agreement to Hawkins BioVentures, LLC. For each of the three months ended March 31, 2024 and 2023, the Company recognized approximately $27,000 in expense in the Condensed Statements of Operations related to the advisory agreement, including approximately $12,000 in expense related to annual equity incentive grants.

Note 5 – Commitments and Contingencies

Leases

The Company is not a party to any leases for office space or equipment.

License Agreements

The Company has undertaken to make contingent milestone payments to the licensors of its portfolio of product candidates. In addition, the Company would pay royalties to such licensors based on a percentage of net sales of each product candidate following regulatory marketing approval (See Note 3).

Litigation

The Company recognizes a liability for a contingency when it is probable that liability has been incurred and when the amount of loss can be reasonably estimated. When a range of probable loss can be estimated, the Company accrues the most likely amount of such loss, and if such amount is not determinable, then the Company accrues the minimum of the range of probable loss. The Company expenses legal costs as they are incurred.

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Checkpoint Therapeutics, Inc.

Notes to Condensed Financial Statements

(Unaudited)

The Company and certain of its executive officers have been named as defendants in a consolidated putative stockholder class action lawsuit pending in the United States District Court for the Southern District of New York. The action is styled Moore v. Checkpoint Therapeutics, Inc., et al., No. 1:24-cv-02613-PAE (the “Securities Class Action”). The Complaint in the Securities Class Action (the “Complaint”), which was filed on April 5, 2024, alleges that defendants violated the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and SEC Rule 10b-5 promulgated thereunder by making false and misleading statements and omissions, and the Complaint alleges that the executive officers named as defendants are control persons under Section 20(a) of the Exchange Act. The Complaint was filed on behalf of stockholders who purchased shares of the Company’s common stock between March 10, 2021 and December 15, 2023, and the Complaint seeks, among other things, monetary damages on behalf of the purported class.

The Company has been named as a nominal defendant and certain of its current and former directors and executive officers have been named as defendants in a derivative lawsuit pending in the United States District Court for the Southern District of New York. The action is styled Geary v. Oliviero, et al., No. 1:24-cv-03471 (the “Derivative Action”). The Complaint in the Derivative Action, which was filed on May 6, 2024, asserts claims against all defendants under Delaware law for, among other things, breach of fiduciary duty, claims against all defendants under Section 14(a) of the Exchange Act, and claims for contribution under the federal securities laws against certain of the defendants.

The Company is reviewing the Complaint and Derivative Action and has not yet formally responded to them but believes that both allegations are without merit and intends to defend itself and its directors and executive officers vigorously. There is no assurance, however, that the Company or the other defendants will be successful in their defense of either of these allegations or that the Company’s insurance policy coverage will be available or adequate to fund any settlement or judgment or the litigation costs of these actions. Moreover, the Company is unable to predict the outcome or reasonably estimate a range of possible losses at this time.

Note 6 – Stockholders’ Equity

Common Stock

At the Company’s 2023 Annual Meeting of Stockholders held on June 12, 2023, its stockholders approved an amendment to its certificate of incorporation to increase the number of authorized shares of common stock available to issue by 30,000,000 to 80,000,000 with a par value of $0.0001 per share, of which 700,000 shares are designated as “Class A common stock.” The amendment was filed with the Secretary of State of the State of Delaware on June 14, 2023.

As of March 31, 2024 and December 31, 2023, there were 700,000 shares of Class A common stock issued and outstanding to Fortress. The holders of common stock are entitled to one vote per share of common stock held. The Class A common stockholders are entitled to a number of votes per share equal to 1.1 times a fraction, the numerator of which is the sum of the shares of outstanding common stock and the denominator of which is the number of shares of Class A common stock. Accordingly, the holder of shares of Class A common stock will be able to control or significantly influence all matters requiring approval by our stockholders, including the election of directors and the approval of mergers or other business combination transactions. Each share of Class A common stock is convertible, at the option of the holder thereof, into one (1) fully paid and non-assessable share of common stock subject to adjustment for stock splits and combinations.

Registered Direct Offerings

In November 2020, the Company filed a shelf registration statement on Form S-3 (the “November 2020 Form S-3”), which was declared effective in December 2020 (File No. 333-251005). Under the November 2020 Form S-3, the Company may sell up to a total of $100 million of its securities.

In February 2023, the Company closed on the February 2023 Registered Direct Offering for the issuance and sale of an aggregate of 1,180,000 shares of its common stock at a purchase price of $5.25 per share of common stock. In addition, the offering includes 248,572 shares of common stock in the form of pre-funded warrants at a price of $5.2499. The pre-funded warrants were funded in full at closing except for a nominal exercise price of $0.0001, are exercisable commencing on the closing date and will terminate when such pre-funded warrants are exercised in full. In a concurrent private placement, Checkpoint issued and sold Series A warrants to purchase up to 1,428,572 shares of common stock and Series B warrants to purchase up to 1,428,572 shares of common stock (collectively, the “February 2023 Common Stock Warrants”). The Series A and B warrants are exercisable immediately upon issuance with an exercise

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Checkpoint Therapeutics, Inc.

Notes to Condensed Financial Statements

(Unaudited)

price of $5.00 per share. The Series A warrants will expire five years following the issuance date and the Series B warrants will expire eighteen months following the issuance date. The Company also issued the placement agent warrants to purchase up to 85,714 shares of common stock with an exercise price of $6.5625 per share. The total gross proceeds from the February 2023 Registered Direct Offering were approximately $7.5 million with net proceeds of approximately $6.7 million after deducting approximately $0.8 million in commissions and other transaction costs. The shares of common stock and the shares underlying the pre-funded warrants were registered for sale under the November 2020 S-3. In March 2023, the Company filed a registration statement on Form S-3 to register the February 2023 Common Stock Warrants and placement agent warrants, which was declared effective May 5, 2023 (File No. 333-270474). In February 2023, the pre-funded warrants from the February 2023 Registered Direct Offering were fully exercised. The February 2023 Common Stock Warrants and placement agent warrants met the criteria for equity classification.

In April 2023, the Company closed on the April 2023 Registered Direct Offering for the issuance and sale of an aggregate of 1,700,000 shares of its common stock at a purchase price of $3.60 per share of common stock. In a concurrent private placement, Checkpoint issued and sold Series A warrants to purchase up to 1,700,000 shares of common stock and Series B warrants to purchase up to 1,700,000 shares of common stock (collectively, the “April 2023 Common Stock Warrants”). The Series A and B warrants are exercisable immediately upon issuance with an exercise price of $3.35 per share. The Series A warrants will expire five years following the issuance date and the Series B warrants will expire eighteen months following the issuance date. The Company also issued the placement agent warrants to purchase up to 102,000 shares of common stock with an exercise price of $4.50 per share. The total gross proceeds from the April 2023 Registered Direct Offering were approximately $6.1 million with net proceeds of approximately $5.5 million after deducting approximately $0.6 million in commissions and other transaction costs. The shares of common stock were registered for sale under the November 2020 S-3. In April 2023, the Company filed a registration statement on Form S-3 to register the April 2023 Common Stock Warrants and placement agent warrants, which was declared effective May 5, 2023 (File No. 333-271171). The April 2023 Common Stock Warrants and placement agent warrants met the criteria for equity classification.

The November 2020 Form S-3 expired in December 2023.

In March 2023, the Company filed a shelf registration statement on Form S-3 (the “March 2023 Form S-3”), which was declared effective May 5, 2023 (File No. 333-270843). Under the March 2023 Form S-3, the Company may sell up to a total of $150 million of its securities.

In May 2023, the Company closed on the May 2023 Registered Direct Offering for the issuance and sale of an aggregate of 1,650,000 shares of its common stock at a purchase price of $3.071 per share of common stock. In addition, the offering includes 1,606,269 shares of common stock in the form of pre-funded warrants at a price of $3.0709. The pre-funded warrants were funded in full at closing except for a nominal exercise price of $0.0001, are exercisable commencing on the closing date and will terminate when such pre-funded warrants are exercised in full. The common stock and the pre-funded warrants were sold together with Series A warrants to purchase up to 3,256,269 shares of common stock and Series B warrants to purchase up to 3,256,269 shares of common stock (collectively, the “May 2023 Common Stock Warrants”). The Series A and B warrants are exercisable immediately upon issuance with an exercise price of $2.821 per share. The Series A warrants will expire five years following the issuance date and the Series B warrants will expire eighteen months following the issuance date. The Company also issued the placement agent warrants to purchase up to 195,376 shares of common stock with an exercise price of $3.8388 per share. The total gross proceeds from the May 2023 Registered Direct Offering were approximately $10.0 million with net proceeds of approximately $9.1 million after deducting approximately $0.9 million in commissions and other transaction costs. The shares of common stock and the shares underlying the pre-funded warrants, May 2023 Common Stock Warrants, and placement agent warrants were registered for sale under the March 2023 S-3. In August 2023, the pre-funded warrants from the May 2023 Registered Direct Offering were fully exercised. The May 2023 Common Stock Warrants and placement agent warrants met the criteria for equity classification.

In July 2023, the Company closed on the July 2023 Registered Direct Offering for the issuance and sale of an aggregate of 2,427,186 shares of its common stock at a purchase price of $3.09 per share of common stock in a registered direct offering. In addition, the offering includes 809,062 shares of common stock in the form of pre-funded warrants at a price of $3.0899. The pre-funded warrants were funded in full at closing except for a nominal exercise price of $0.0001, are exercisable commencing on the closing date and will terminate when such pre-funded warrants are exercised in full. The common stock and the pre-funded warrants were sold together with Series A warrants to purchase up to 3,236,248 shares of common stock and Series B warrants to purchase up to 3,236,248 shares of common stock (collectively, the “July 2023 Common Stock Warrants”). The Series A and B warrants are exercisable immediately upon issuance with an exercise price of $2.84 per share. The Series A warrants will expire five years following the issuance date and the

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Checkpoint Therapeutics, Inc.

Notes to Condensed Financial Statements

(Unaudited)

Series B warrants will expire eighteen months following the issuance date. The Company also issued the placement agent warrants to purchase up to 194,175 shares of common stock with an exercise price of $3.8625 per share. The total gross proceeds from the July 2023 Registered Direct Offering were approximately $10.0 million with net proceeds of approximately $9.1 million after deducting approximately $0.9 million in commissions and other transaction costs. The shares of common stock and the shares underlying the pre-funded warrants, July 2023 Common Stock Warrants, and placement agent warrants were registered for sale under the March 2023 S-3. In September 2023, the pre-funded warrants from the July 2023 Registered Direct Offering were fully exercised. The July 2023 Common Stock Warrants and placement agent warrants met the criteria for equity classification.

In January 2024, the Company closed on the January 2024 Registered Direct Offering for the issuance and sale of an aggregate of 1,275,000 shares of its common stock at a purchase price of $1.805 per share of common stock. In addition, the offering includes 6,481,233 shares of common stock in the form of pre-funded warrants at a price of $1.8049. The pre-funded warrants were funded in full at closing except for a nominal exercise price of $0.0001, are exercisable commencing on the closing date and will terminate when such pre-funded warrants are exercised in full. In a concurrent private placement, Checkpoint issued and sold the January 2024 Common Stock Warrants to purchase up to 7,756,233 shares of common stock. The January 2024 Common Stock Warrants are exercisable immediately upon issuance with an exercise price of $1.68 per share and will expire five years following the issuance date. The Company also issued the placement agent warrants to purchase up to 465,374 shares of common stock with an exercise price of $2.2563 per share. The total gross proceeds from the January 2024 Registered Direct Offering were approximately $14.0 million with net proceeds of approximately $12.8 million after deducting approximately $1.2 million in commissions and other transaction costs. The shares of common stock and the shares underlying the pre-funded warrants were registered for sale under the March 2023 S-3. In March 2024, the Company filed a registration statement on Form S-3 to register the January 2024 Common Stock Warrants and placement agent warrants, which was declared effective April 5, 2024 (File No. 333-278397). As of May 7, 2024, 2,656,000 pre-funded warrants from the January 2024 Registered Direct Offering were fully exercised.

As of March 31, 2024, approximately $77.7 million of securities remain available for sale under the March 2023 Form S-3.

The Company may offer the securities under the Form S-3’s from time to time in response to market conditions or other circumstances if it believes such a plan of financing is in the best interests of its stockholders.

Warrant Inducement

In October 2023, the Company entered into the October 2023 Inducement with a certain holder of its existing warrants to exercise for cash an aggregate of 6,325,354 shares of the Company’s common stock at a reduced exercise price of $1.76 per share. The exercised warrants included warrants issued in a December 2022 registered direct offering with an original exercise price of $4.075 per share and the February Common Stock Warrants issued in the February 2023 Registered Direct Offering with an original exercise price of $5.00 per share. As part of the October 2023 Inducement, the Company agreed to issue new unregistered Series A Warrants to purchase up to 6,325,354 shares of Common Stock and new unregistered Series B Warrants to purchase up to 6,325,354 shares of Common Stock (collectively, the “October 2023 Common Stock Warrants”). The Series A and B warrants are exercisable immediately upon issuance with an exercise price of $1.51 per share. The Series A warrants will expire five years following the issuance date and the Series B warrants will expire twenty-four months following the issuance date. The Company also issued the placement agent warrants to purchase up to 379,521 shares of common stock with an exercise price of $2.20 per share. The total gross proceeds from the October 2023 Inducement were approximately $11.1 million with net proceeds of approximately $10.0 million after deducting approximately $1.1 million in commissions and other transaction costs. In November 2023, the Company filed a registration statement on Form S-3 to register the October 2023 Common Stock Warrants and placement agent warrants, which was declared effective November 24, 2023 (File No. 333-275644). The October 2023 Common Stock Warrants and placement agent warrants met the criteria for equity classification.

Upon the close of the transaction, the Company issued the holder 110,000 of the 6,325,354 shares of common stock that were issuable upon exercise of the existing warrants. Due to the beneficial ownership limitation provisions in the inducement offer letter agreement, the remaining 6,215,354 shares were initially unissued, and held in abeyance for the benefit of the holder until notice from the holder that the shares may be issued in compliance with the agreement. In January 2024, the final shares held in abeyance were issued to the holder.

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Checkpoint Therapeutics, Inc.

Notes to Condensed Financial Statements

(Unaudited)

Shares Issued Under the Founders Agreement

Pursuant to the Founders Agreement, the Company issued 368,907 shares of common stock to Fortress for the Annual Equity Fee, representing 2.5% of the fully diluted outstanding equity of Checkpoint on January 1, 2023 (see Notes 2 and 4).

Pursuant to the Founders Agreement, the Company issued to Fortress 2.5% of the aggregate number of shares of common stock issued in the February 2023 Registered Direct Offering noted above. Accordingly, the Company issued 35,714 shares of common stock to Fortress and recorded expense of approximately $156,000 related to this grant, which is included in general and administrative expenses in the Company’s Condensed Statements of Operations for the three months ended March 31, 2023.

Pursuant to the Founders Agreement, the Company issued to Fortress 2.5% of the aggregate number of shares of common stock issued in the January 2024 Registered Direct Offering. Accordingly, the Company issued 193,905 shares of common stock to Fortress and recorded expense of approximately $396,000 related to this issuance, which is included in general and administrative expenses in the Company’s Condensed Statements of Operations for the three months ended March 31, 2024.

Equity Incentive Plan

The Company has in effect the Amended and Restated 2015 Incentive Plan (“2015 Incentive Plan”). The 2015 Incentive Plan was adopted in March 2015 by our stockholders. Under the 2015 Incentive Plan, the compensation committee of the Company’s board of directors is authorized to grant stock-based awards to directors, officers, employees and consultants. An amendment to the 2015 Incentive Plan was approved by stockholders in June 2023 to increase the shares available for issuance to 6,000,000 shares. The plan expires 10 years from the effective date of the amendment and limits the term of each option to no more than 10 years from the date of grant.

As of March 31, 2024, 852,712 shares are available for issuance under the 2015 Incentive Plan.

Restricted Stock Awards

Certain employees, directors and consultants have been awarded restricted stock. The restricted stock vesting consists of milestone and time-based vesting. The following table summarizes restricted stock award activity for the three months ended March 31, 2024:


		Weighted Average
	Number of	Grant Date Fair
	Shares	Value
Non-vested at December 31, 2023	1,316,120	$	6.88
Granted	2,704,000		1.99
Forfeited	(23,894)		6.28
Vested	(253,550)		7.72
Non-vested at March 31, 2024	3,742,676	$	3.30

As of March 31, 2024, there was $4.4 million of total unrecognized compensation cost related to non-vested restricted stock, which is expected to be recognized over a weighted-average period of 1.9 years. This amount does not include, as of March 31, 2024, 1,466,733 shares of restricted stock outstanding which are performance-based and vest upon achievement of certain corporate milestones. The expense is recognized over the vesting period of the award. Stock-based compensation for milestone awards will be measured and recorded if and when it is probable that the milestone will be achieved.

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Checkpoint Therapeutics, Inc.

Notes to Condensed Financial Statements

(Unaudited)

Restricted Stock Units

The following table summarizes restricted stock units activity for the three months ended March 31, 2024:


		Weighted Average
	Number of	Grant Date Fair
	Shares	Value
Non-vested at December 31, 2023	615,884	$	2.77
Forfeited	(17,638)		2.25
Non-vested at March 31, 2024	598,246	$	2.78

As of March 31, 2024, all restricted stock units outstanding are performance-based and vest upon achievement of certain corporate milestones. The expense for milestone awards will be measured and recorded if and when it is probable that the milestone will be achieved.

Stock Options

The following table summarizes stock option award activity for the three months ended March 31, 2024:


				Weighted Average
				Remaining
		Weighted Average		Contractual Life
	Stock Options	Exercise Price		(in years)
Outstanding as of December 31, 2023	127,000	$	8.88	8.60
Outstanding as of March 31, 2024	127,000	$	8.88	8.35
Vested and exercisable as of March 31, 2024	20,250	$	24.74	5.83

Upon the exercise of stock options, the Company will issue new shares of its common stock.The Company used the Black-Scholes Model for determining the estimated fair value of stock-based compensation related to stock options.

Warrants

A summary of warrant activities for the three months ended March 31, 2024 is presented below:


				Weighted Average
				Remaining
		Weighted Average		Contractual Life
	Warrants	Exercise Price		(in years)
Outstanding as of December 31, 2023	30,097,671	$	2.36	3.00
Granted	14,702,840		0.96
Exercised	(2,661,233)		—
Outstanding as of March 31, 2024	42,139,278	$	2.02	4.07

Upon the exercise of warrants, the Company will issue new shares of its common stock.

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Checkpoint Therapeutics, Inc.

Notes to Condensed Financial Statements

(Unaudited)

Stock-Based Compensation

The following table summarizes stock-based compensation expense for the three months ended March 31, 2024 and 2023 ($ in thousands):


	For the three months ended March 31,
	2024		2023
Research and development	$	490	$	390
General and administrative		220		579
Total stock-based compensation expense	$	709	$	969

Note 7 – Common Stock Warrant Liabilities

On December 16, 2022, the Company closed on an offering for the sale of shares of its common stock and pre-funded warrants as part of a registered direct offering. The common stock and the pre-funded warrants were sold together with Series A and Series B common stock warrants. The Company also issued the placement agent warrants to purchase shares of common stock as part of the offering. After the October 2023 Inducement, only the placement agent warrants remained outstanding from this offering.

The Company accounts for warrants as either equity-classified or liability-classified instruments based on an assessment of the warrant’s specific terms and applicable authoritative guidance in ASC 480, Distinguishing Liabilities from Equity and ASC 815-40, Derivatives and Hedging - Contracts in Entity’s Own Equity. For warrants that meet all of the criteria for equity classification, the warrants are required to be recorded as a component of additional paid-in capital at the time of issuance. For warrants that do not meet all the criteria for equity classification, the warrants are required to be recorded at their initial fair value on the date of issuance, and each balance sheet date thereafter.

The Company deemed the placement agent warrants issued in December 2022 to be classified as liabilities on the balance sheet as they contain terms for redemption of the underlying security that are outside its control. The warrants were recorded at the time of closing at a fair value, determined by using the Black-Scholes Model, and will be revalued at each reporting period thereafter for as long as they remain outstanding. The Company revalued the warrants at March 31, 2024 and December 31, 2023, resulting in a fair value of approximately $125,000 for each period.


	Common Stock
	Warrant
	Liabilities
Common Stock Warrant liabilities at December 31, 2023	$	125
Change in fair value of Common Stock Warrant liabilities		—
Common Stock Warrant liabilities at March 31, 2024	$	125

The Company used the Black-Scholes Model for determining the estimated fair value of the common stock warrant liabilities. A summary of the weighted average (in aggregate) significant unobservable inputs used in measuring the warrant liability is determined using Level 3 inputs as follows:


	March 31,			December 31,
	2024			2023
Exercise price	$	5.41		$	5.41
Volatility		107.5	%		96.4	%
Expected life		3.7			4.0
Risk-free rate		4.2	%		3.8	%
Dividend yield		—			—

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Item 2. Financial Information.

Management’s Discussion and Analysis of Financial Condition and Results of Operations

Forward-Looking Statements

Statements in the following discussion and throughout this report that are not historical in nature are “forward-looking statements.” You can identify forward-looking statements by the use of words such as “expect,” “anticipate,” “estimate,” “may,” “will,” “should,” “intend,” “believe,” and similar expressions, although not all forward-looking statements contain these identifying words. Although we believe the expectations reflected in these forward-looking statements are reasonable, such statements are inherently subject to significant risks and uncertainties and we can give no assurances that our expectations will prove to be correct. Actual results could differ materially from those described in this report because of numerous factors, many of which are beyond our control. These factors include, without limitation, those described under Item 1A “Risk Factors.” We undertake no obligation to update these forward-looking statements to reflect events or circumstances after the date of this report or to reflect actual outcomes.

Overview

We are a clinical-stage immunotherapy and targeted oncology company focused on the acquisition, development and commercialization of novel treatments for patients with solid tumor cancers. We are evaluating our lead antibody product candidate, cosibelimab, an anti-programmed death-ligand 1 (“PD-L1”) antibody licensed from the Dana-Farber Cancer Institute, in an ongoing global, open-label, multicohort Phase 1 clinical trial in checkpoint therapy-naïve patients with selected recurrent or metastatic cancers, including ongoing cohorts in locally advanced and metastatic cutaneous squamous cell carcinoma (“CSCC”) intended to support one or more applications for marketing approval. Based on top-line and interim results in metastatic and locally advanced CSCC, respectively, we submitted a Biologics License Application (“BLA”) to the U.S. Food and Drug Administration (“FDA”) for these indications in January 2023. On December 15, 2023, the FDA issued a complete response letter (“CRL”) for the cosibelimab BLA for the treatment of patients with metastatic or locally advanced CSCC who are not candidates or curative surgery or radiation. The CRL only cites findings that arose during a multi-sponsor inspection of our third-party contract manufacturing organization as approvability issues to address in a resubmission. Checkpoint intends to seek to address the issues raised in the CRL in a potential BLA resubmission. In addition, we are evaluating our lead small-molecule, targeted anti-cancer agent, olafertinib, a third-generation epidermal growth factor receptor (“EGFR”) inhibitor, as a potential new treatment for patients with EGFR mutation-positive non-small cell lung cancer (“NSCLC”).

In January 2022, we announced top-line results from a registration-enabling cohort of our multi-regional, Phase 1 clinical trial of cosibelimab in patients with metastatic CSCC. The cohort met its primary endpoint, with cosibelimab demonstrating a confirmed objective response rate (“ORR”) of 47.4% (95% CI: 36.0, 59.1) based on independent central review of 78 patients enrolled in the metastatic CSCC cohort using Response Evaluation Criteria in Solid Tumors version 1.1 (“RECIST 1.1”).

In June 2022, we announced interim results from a registration-enabling cohort of our multi-regional, Phase 1 clinical trial of cosibelimab in patients with locally advanced CSCC that are not candidates for curative surgery or radiation. Cosibelimab demonstrated a confirmed ORR of 54.8% (95% CI: 36.0, 72.7) based on independent central review of 31 patients enrolled in the cohort.

In July 2023, we announced longer-term results for cosibelimab from its pivotal studies in locally advanced and metastatic CSCC. These results demonstrated a deepening of response over time, resulting in complete response rates of 26% and 13% in locally advanced and metastatic CSCC, respectively. Additionally, the confirmed ORR in metastatic CSCC increased to 50.0% based on independent central review using RECIST 1.1. Furthermore, responses continue to remain durable over time with the median duration of response not yet reached in either group. Updated safety data across 247 patients enrolled and treated with cosibelimab in all cohorts of the ongoing study remain consistent with those previously reported.

To date, we have not received approval for the sale of any product candidate in any market and, therefore, have not generated any product sales from any product candidates. In addition, we have incurred substantial operating losses since our inception, and expect to continue to incur significant operating losses for the foreseeable future and may never become profitable. As of March 31, 2024, we have an accumulated deficit of $325.3 million.

We are a majority-controlled subsidiary of Fortress.

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General and Administrative Expenses

General and administrative expenses consist primarily of salaries and related expenses, including stock-based compensation, for executives and other administrative personnel, recruitment expenses, professional fees and other corporate expenses, including investor relations, legal activities, marketing and facilities-related expenses.

For the three months ended March 31, 2024, general and administrative expenses were approximately $2.5 million, compared to $2.3 million for the three months ended March 31, 2023, an increase of $0.2 million. The current period general and administrative expenses primarily consisted of stock compensation expense of $0.2 million, $0.4 million related to salary expenses, $0.6 million related to legal and accounting fees, $0.1 million related to investor relation fees, $0.1 million related to marketing costs, and $0.4 million related to our issuance of shares to Fortress pursuant to the Founders Agreement in connection with the sale of shares of our common stock. The prior period general and administrative expenses primarily consisted of stock compensation expense of $0.6 million, $0.4 million related to salary expenses, $0.5 million related to legal and accounting fees, $0.1 million related to investor relation fees, and $0.2 million related to our issuance of shares to Fortress pursuant to the Founders Agreement in connection with the sale of shares of our common stock.

We anticipate our general and administrative expenses will remain relatively consistent for the remainder of 2024.

Other Income

For the three months ended March 31, 2024, interest income was approximately $4,000 compared to approximately $43,000 for the three months ended March 31, 2023, a decrease of approximately $39,000. The decrease was primarily due to our cash balances between the periods.

For the three months ended March 31, 2024, there was no change in the value of common stock warrant liabilities compared to December 31, 2023. For the three months ended March 31, 2023, the gain on common stock warrant liabilities was approximately $7.6 million. The gain on common stock warrant liabilities is comprised of the fair value remeasurement of the common stock warrant liabilities on March 31, 2023 associated with the registered direct offering we completed in December 2022. We account for warrants as either equity-classified or liability-classified instruments based on an assessment of the warrant’s specific terms and applicable authoritative guidance in ASC 480 and ASC 815. The assessment considers whether the warrants are freestanding financial instruments pursuant to ASC 480, meet the definition of a liability pursuant to ASC 480, and whether the warrants meet all of the requirements for equity classification under ASC 815, including whether the warrants are indexed to the Company’s own common stock, among other conditions for equity classification. This assessment, which requires the use of professional judgment, is conducted at the time of warrant issuance and as of each subsequent quarterly period end date while the warrants are outstanding.

For the three months ended March 31, 2024, foreign currency exchange loss was approximately $1,000, which is comprised of the currency fluctuation when purchasing goods and services in another currency relative to the United States dollar.

Liquidity and Capital Resources

We have incurred substantial operating losses since our inception and expect to continue to incur significant operating losses for the foreseeable future and may never become profitable. As of March 31, 2024, we had an accumulated deficit of $325.3 million.

In February 2023, we closed on a registered direct offering (the “February 2023 Registered Direct Offering”) for the issuance and sale of an aggregate of 1,428,572 shares of our common stock at a purchase price of $5.25 per share. In addition, the offering included 248,572 shares of common stock in the form of pre-funded warrants at a price of $5.2499. In a concurrent private placement, we issued and sold Series A warrants to purchase up to 1,428,572 shares of common stock and Series B warrants to purchase up to 1,428,572 shares of common stock. The Series A and B warrants are exercisable immediately upon issuance with an exercise price of $5.00 per share. The Series A warrants will expire five years following the issuance date and the Series B warrants will expire eighteen months following the issuance date. The total gross proceeds from the offering were approximately $7.5 million with net proceeds of approximately $6.7 million after deducting approximately $0.8 million in commissions and other transaction costs. In February 2023, the pre-funded warrants from the February 2023 Registered Direct Offering were fully exercised. In October 2023, the Series A and Series B warrants from the February 2023 Registered Direct Offering were fully exercised at a reduced exercise price of $1.76 per share as part of the October 2023 inducement offer letter agreement (see below).

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In April 2023, we closed on a registered direct offering (the “April 2023 Registered Direct Offering”) for the issuance and sale of an aggregate of 1,700,000 shares of our common stock at a purchase price of $3.60 per share. In a concurrent private placement, we issued and sold Series A warrants to purchase up to 1,700,000 shares of common stock and Series B warrants to purchase up to 1,700,000 shares of common stock. The Series A and B warrants are exercisable immediately upon issuance with an exercise price of $3.35 per share. The Series A warrants will expire five years following the issuance date and the Series B warrants will expire eighteen months following the issuance date. The total gross proceeds from the offering were approximately $6.1 million with net proceeds of approximately $5.5 million after deducting approximately $0.6 million in commissions and other transaction costs.

In May 2023, we closed on a registered direct offering (the “May 2023 Registered Direct Offering”) for the issuance and sale of an aggregate of 1,650,000 shares of our common stock at a purchase price of $3.071 per share. In addition, the offering included 1,606,269 shares of common stock in the form of pre-funded warrants at a price of $3.0709. The common stock and the pre-funded warrants were sold together with Series A warrants to purchase up to 3,256,269 shares of common stock and Series B warrants to purchase up to 3,256,269 shares of common stock. The Series A and B warrants are exercisable immediately upon issuance with an exercise price of $2.821 per share. The Series A warrants will expire five years following the issuance date and the Series B warrants will expire eighteen months following the issuance date. The total gross proceeds from the offering were approximately $10.0 million with net proceeds of approximately $9.1 million after deducting approximately $0.9 million in commissions and other transaction costs. In August 2023, the pre-funded warrants from the May 2023 Registered Direct Offering were fully exercised.

In July 2023, we closed on a registered direct offering (the “July 2023 Registered Direct Offering”) for the issuance and sale of an aggregate of 2,427,186 shares of our common stock at a purchase price of $3.09 per share. In addition, the offering included 809,062 shares of common stock in the form of pre-funded warrants at a price of $3.0899. The common stock and the pre-funded warrants were sold together with Series A warrants to purchase up to 3,236,248 shares of common stock and Series B warrants to purchase up to 3,236,248 shares of common stock. The Series A and B warrants are exercisable immediately upon issuance with an exercise price of $2.84 per share. The Series A warrants will expire five years following the issuance date and the Series B warrants will expire eighteen months following the issuance date. The total gross proceeds from the offering were approximately $10.0 million with net proceeds of approximately $9.1 million after deducting approximately $0.9 million in commissions and other transaction costs. In September 2023, the pre-funded warrants from the July 2023 Registered Direct Offering were fully exercised.

In October 2023, we entered into an inducement offer letter agreement (the “October 2023 Inducement”) with a certain holder of our existing warrants to exercise for cash an aggregate of 6,325,354 shares of our common stock at a reduced exercise price of $1.76 per share. The warrants were issued to the holder on December 16, 2022 with an exercise price of $4.075 per share and on February 22, 2023 with an exercise price of $5.00 per share as part of registered direct offerings. As part of the inducement, we agreed to issue new unregistered Series A warrants to purchase up to 6,325,354 shares of Common Stock and new unregistered Series B warrants to purchase up to 6,325,354 shares of Common Stock (collectively, the “October 2023 Common Stock Warrants”). The Series A and B warrants are exercisable immediately upon issuance with an exercise price of $1.51 per share. The Series A warrants will expire five years following the issuance date and the Series B warrants will expire twenty-four months following the issuance date. The total gross proceeds from the exercise were approximately $11.1 million with net proceeds of approximately $10.0 million after deducting approximately $1.1 million in commissions and other transaction costs. Upon the close of the transaction, we issued the holder 110,000 of the 6,325,354 shares of common stock that were issuable upon exercise of the existing warrants. Due to the beneficial ownership limitation provisions in the inducement offer letter agreement, the remaining 6,215,354 shares were initially unissued, and held in abeyance for the benefit of the holder until notice from the holder that the shares may be issued in compliance with the agreement. In January 2024, the final shares held in abeyance were issued to the holder.

In January 2024, we closed on a registered direct offering (the “January 2024 Registered Direct Offering”) for the issuance and sale of an aggregate of 1,275,000 shares of our common stock at a purchase price of $1.805 per share of common stock. In addition, the offering included 6,481,233 shares of common stock in the form of pre-funded warrants at a price of $1.8049. The common stock and the pre-funded warrants were sold together with common warrants (the “January 2024 Common Stock Warrants”) to purchase up to 7,756,233 shares of common stock. The January 2024 Common Stock Warrants are exercisable immediately upon issuance with an exercise price of $1.68 per share and will expire five years following the issuance date. The total gross proceeds from the January 2024 Registered Direct Offering were approximately $14.0 million with net proceeds of approximately $12.8 million after deducting approximately $1.2 million in commissions and other transaction costs. As of May 7, 2024, 2,656,000 pre-funded warrants from the January 2024 Registered Direct Offering were fully exercised.

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control systems are met. Further, the design of a control system must reflect the fact that there are resource constraints, and the benefits of controls must be considered relative to their costs. Because of the inherent limitations in a cost-effective control system, no evaluation of internal control over financial reporting can provide absolute assurance that misstatements due to error or fraud will not occur or that all control issues and instances of fraud, if any, have been or will be detected.

Changes in Internal Control over Financial Reporting:

There were no changes in our internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) that occurred during the fiscal quarter ended March 31, 2024 which have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Part II. Other Information

Item 1. Legal Proceedings.

We and certain of our executive officers have been named as defendants in a consolidated putative stockholder class action lawsuit pending in the United States District Court for the Southern District of New York. The action is styled Moore v. Checkpoint Therapeutics, Inc., et al., No. 1:24-cv-02613-PAE (the “Securities Class Action”). The Complaint in the Securities Class Action (the “Complaint”), which was filed on April 5, 2024, alleges that defendants violated the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and SEC Rule 10b-5 promulgated thereunder by making false and misleading statements and omissions, and the Complaint alleges that the executive officers named as defendants are control persons under Section 20(a) of the Exchange Act. The Complaint was filed on behalf of stockholders who purchased shares of the Company’s common stock between March 10, 2021 and December 15, 2023, and the Complaint seeks, among other things, monetary damages on behalf of the purported class.

We have been named as a nominal defendant and certain of our current and former directors and executive officers have been named as defendants in a derivative lawsuit pending in the United States District Court for the Southern District of New York. The action is styled Geary v. Oliviero, et al., No. 1:24-cv-03471 (the “Derivative Action”). The Complaint in the Derivative Action, which was filed on May 6, 2024, asserts claims against all defendants under Delaware law for, among other things, breach of fiduciary duty, claims against all defendants under Section 14(a) of the Exchange Act, and claims for contribution under the federal securities laws against certain of the defendants.

We intend to defend ourselves and our directors and executive officers vigorously.

Item 1A. Risk Factors

The following information sets forth risk factors that could cause our actual results to differ materially from those contained in forward-looking statements we have made in this report and those we may make from time to time. You should carefully consider the risks described below, in addition to the other information contained in this report and our other public filings, before making an investment decision. Our business, financial condition or results of operations could be harmed by any of these risks. The risks and uncertainties described below are not the only ones we face. Additional risks not presently known to us or other factors not perceived by us to present significant risks to our business at this time also may impair our business operations.

Risks Related to Our Finances and Capital Requirements

We have incurred significant losses since our inception and anticipate that we will incur continued losses for the foreseeable future. We may never achieve or maintain profitability.

We have a limited operating history, and we have focused primarily on in-licensing and developing our product candidates, with the goal of supporting regulatory approval for these product candidates. We have incurred losses since our inception in November 2014 and have an accumulated deficit of $325.3 million as of March 31, 2024. We expect to continue to incur significant operating losses for the foreseeable future. We also do not anticipate that we will achieve profitability for a period of time after generating material revenues, if ever. If we are unable to generate revenues, we will not become profitable and may be unable to continue operations without continued funding. Because of the numerous risks and uncertainties associated with developing pharmaceutical products, we are unable to predict

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the timing or amount of increased expenses or when or if, we will be able to achieve profitability. Our net losses may fluctuate significantly from quarter to quarter and year to year. We anticipate that our expenses will increase substantially if:

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one or more of our product candidates are submitted for marketing approval, as is the case with cosibelimab, or are approved for commercial sale, due to our need to establish the necessary commercial infrastructure to launch this product candidate without substantial delays, including manufacturing to build pre-commercial inventory, hiring sales and marketing personnel and contracting with third parties for warehousing, distribution, cash collection and related commercial activities;

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we are required by the FDA or foreign regulatory authorities, to perform studies in addition to those currently expected;

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we initiate one or more clinical trials to pursue additional indications for our product candidates, or if there are any delays in completing our clinical trials or the development of any of our product candidates;

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we execute other collaborative, licensing or similar arrangements and the timing of payments we may make or receive under these arrangements;

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there are variations in the level of expenses related to our current and future development programs;

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there are any product liability or intellectual property infringement lawsuits in which we may become involved;

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there are any regulatory developments affecting product candidates of our competitors; and

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one or more of our product candidates receives regulatory approval.

Our ability to become profitable depends upon our ability to generate revenue. To date, we have not generated any revenue from the sale of our development stage products, and we do not know when, or if, we will generate any revenue. To obtain revenues from sales of our product candidates, we must succeed, either alone or with third parties, in developing, obtaining regulatory approval for, manufacturing and marketing products with commercial potential. Our ability to generate revenue depends on a number of factors, including, but not limited to, our ability to:

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obtain regulatory approval for one or more of our product candidates, or any future product candidate that we may license or acquire;

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manufacture commercial quantities of one or more of our product candidates or any future product candidate, if approved, at acceptable cost levels; and

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develop a commercial organization and the supporting infrastructure required to successfully market and sell one or more of our product candidates or any future product candidate, if approved.

Even if we do achieve profitability, we may not be able to sustain or increase profitability on a quarterly or annual basis. Our failure to become and remain profitable would depress the value of our company and could impair our ability to raise capital, expand our business, maintain our research and development efforts, diversify our product offerings or even continue our operations. A decline in the value of our company could also cause you to lose all or part of your investment.

We will require substantial additional funding which may not be available to us on acceptable terms, or at all. If we fail to raise the necessary additional capital, we may be unable to complete the development and commercialization of our product candidates, or continue our development programs.

Our operations have consumed substantial amounts of cash since inception. We expect to significantly increase our spending to advance the preclinical and clinical development, and resulting regulatory approval request submissions, of our product candidates and launch and commercialize any product candidates for which we may receive regulatory approval, including building a commercial organization to address certain markets. We will require additional capital for the further development and, if approved, commercialization of our product candidates, as well as to fund our other operating expenses and capital expenditures. We believe, assuming no business or corporate development transactions are consummated, and that no outstanding cash warrants are exercised, that our cash and cash equivalents are only sufficient to fund our operating expenses into the third quarter of 2024. Accordingly, we intend to continue our active discussions with third party pharmaceutical and biotechnology companies to evaluate potential partnerships or other types of corporate development transactions, including strategic mergers.

We cannot be certain that additional funding will be available on acceptable terms, or at all. If we are unable to raise additional capital in sufficient amounts or on terms acceptable to us we may have to significantly delay, scale back or discontinue the development or, if approved, commercialization of one or more of our product candidates. We may also seek collaborators for one or more of our current

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or future product candidates at an earlier stage than otherwise would be desirable or on terms that are less favorable than might otherwise be available. Any of these events could significantly harm our business, financial condition and prospects.

Our future funding requirements will depend on many factors, including, but not limited to:

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the timing, design and conduct of, and results from, preclinical studies and clinical trials for our product candidates;

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the timing and process of regulatory approval reviews and potential delays in our efforts to seek regulatory approval for our product candidates, and any costs associated with such delays;

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the costs of establishing a commercial organization to sell, market and distribute our product candidates;

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the rate of progress and costs of our efforts to prepare for the submission or resubmission of an NDA or BLA for any of our product candidates or any product candidates that we may in-license or acquire in the future, and the potential that we may need to conduct additional clinical trials to support applications for regulatory approval;

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the costs of filing, prosecuting, defending and enforcing any patent claims and other intellectual property rights associated with our product candidates, including any such costs we may be required to expend if our licensors are unwilling or unable to do so;

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the cost and timing of securing sufficient supplies of our product candidates from our third-party manufacturers for clinical trials and in preparation for commercialization;

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the effect of competing technological and market developments;

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the terms and timing of any collaborative, licensing, co-promotion or other arrangements that we may establish;

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the costs associated with litigation, adverse remedy judgments and/or settlements, including with respect to the Securities Class Action, the Derivative Action and any future actions that may be brought against the Company;

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if one or more of our product candidates are approved, the potential that we may be required to file a lawsuit to defend our patent rights or regulatory exclusivities from challenges by companies seeking to market generic versions of one or more of our product candidates; and

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the success of the commercialization of one or more of our product candidates, if approved.

Future capital requirements will also depend on the extent to which we acquire or invest in additional complementary businesses, products and technologies, but we currently have no commitments or agreements relating to any of these types of transactions.

In order to carry out our business plan and implement our strategy, we anticipate that we will need to obtain additional financing from time to time and may choose to raise additional funds through strategic collaborations, licensing arrangements, public or private equity or debt financing, bank lines of credit, asset sales, government grants, or other arrangements. We are also engaging in discussions with third party pharmaceutical and biotechnology companies to evaluate potential partnerships or other types of corporate development transactions, including a strategic merger. We cannot be sure that any additional funding, if needed, partnership or any other type of corporate development transaction, will be available on terms favorable to us or at all. Furthermore, any additional equity or equity-related financing, or equity that may be issued or sold in a corporate development transaction, may be dilutive to our stockholders, and debt or equity financing, if available, may subject us to restrictive covenants and significant interest costs. If we obtain funding through a strategic collaboration, merger, or licensing arrangement, we may be required to relinquish our rights to certain of our product candidates or marketing territories.

Our inability to raise capital when needed would harm our business, financial condition and results of operations, and could cause our stock price to decline or require that we wind down our operations altogether.

There is substantial doubt about our ability to continue as a going concern, which may hinder our ability to obtain future financing.

Our unaudited condensed financial statements as of March 31, 2024 have been prepared under the assumption that we will continue as a going concern for the next twelve months. We do not believe that our cash and cash equivalents are sufficient for the next twelve months after the date that our financial statements are issued. As a result of our financial condition and other factors described herein, there is substantial doubt about our ability to continue as a going concern. Our ability to continue as a going concern will depend on our ability to obtain additional funding, as to which no assurances can be given. We continue to analyze various alternatives, including potentially obtaining debt or equity financings or other arrangements. Our future success depends on our ability to raise capital. We cannot be certain that raising additional capital, whether through selling additional debt or equity securities or obtaining a line of credit or other loan, will be available to us or, if available, will be on terms acceptable to us. If we issue additional securities to raise funds,

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Risks Related to our Business Strategy, Structure, and Organization

We currently have no drug products for sale and are dependent on the future success of our product candidates. We can give no assurances that any of our product candidates will receive regulatory approval or be successfully commercialized.

To date, we have invested a significant portion of our efforts and financial resources in the acquisition and development of our product candidates. As a development-stage company, we have limited experience and have not yet demonstrated an ability to successfully overcome many of the risks and uncertainties frequently encountered by companies in new and rapidly evolving fields, particularly in the biopharmaceutical area. Our future success is substantially dependent on our ability to successfully develop, obtain regulatory approval for, and then successfully commercialize such product candidates. Our product candidates are currently in preclinical development or in clinical trials. Our business depends entirely on the successful development and commercialization of our product candidates, which may never occur. We currently have no drug products for sale, currently generate no revenues from sales of any drug products and may never be able to develop or commercialize a marketable drug.

The successful development, and any commercialization of our technologies and any product candidates that may occur, would require us to successfully perform a variety of functions, including:

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developing our technology platform;

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identifying, developing, formulating, manufacturing and commercializing product candidates;

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entering into and maintaining successful licensing and other arrangements with product development partners;

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achieving clinical endpoints to support preparation of approval applications;

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participating in regulatory approval processes, including ultimately gaining approval to market a drug product, which may not occur;

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obtaining sufficient quantities of our product candidates from our third-party manufacturers to meet clinical trial needs and, if approved, to meet commercial demand at launch and thereafter;

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establishing and maintaining agreements with wholesalers, distributors and group purchasing organizations on commercially reasonable terms;

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conducting sales and marketing activities including hiring, training, deploying and supporting a sales force and creating market demand for our product candidates through our own marketing and sales activities, and any other arrangements to promote our product candidates that we may establish;

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maintaining patent protection and regulatory exclusivity for our product candidates; and

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obtaining market acceptance for our product candidates.

Each of these requirements will require substantial time, effort and financial resources.

We intend to use data from our ongoing Phase 1 clinical trial of cosibelimab, conducted outside the United States, in checkpoint therapy-naïve patients with selected recurrent or metastatic cancers, including CSCC, to potentially support one or more U.S. BLAs and comparable applications for marketing approval outside the U.S. In January 2020, we announced that we had initial discussions with the FDA to execute this strategy in CSCC. Based on top-line and interim results in metastatic and locally advanced CSCC, respectively, we submitted a BLA to the U.S. FDA for these indications in January 2023. In December 2023, the FDA issued a complete response letter for the cosibelimab BLA due to inspection issues at the third-party contract manufacturing organization. Although no approvability issues regarding use of data from the Phase 1 clinical trial were noted in the complete response letter, upon resubmission of the BLA the FDA reserves the right to review the BLA again in its entirety.Similarly, we intend to use data from our licensor’s ongoing Phase 3 clinical trial of olafertinib (formerly CK-101), conducted only in China, in patients with EGFR mutation-positive NSCLC, to potentially support a U.S. NDA and comparable applications for marketing approval outside the U.S. We believe, based on published FDA guidance documents, public statements of companies with comparable product candidates, and past interactions with the FDA, that exclusively foreign clinical data from a single study may be acceptable to support marketing approval(s) under FDA regulations. If we prove to be incorrect, running additional studies in the U.S. will require substantial time, effort and financial resources or may not be possible at all.

Our operations have been limited to organizing our company, acquiring, developing and securing our proprietary technologies and obtaining preclinical data or clinical data for various product candidates. These operations provide a limited basis for you to assess our ability to continue to identify product candidates, develop and commercialize product candidates in our portfolio and any product

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candidates we are able to identify and enter into successful collaborative arrangements with other companies in the future, as well as for you to assess the advisability of investing in our securities.

Each of our product candidates will require additional preclinical or clinical development, management of preclinical, clinical and manufacturing activities, regulatory approval in the jurisdictions in which we plan to market the product, obtaining manufacturing supply, building of a commercial organization, and significant marketing efforts before we generate any revenues from product sales, which may not occur. We are not permitted to market or promote any of our product candidates in the U.S. or any other jurisdiction before we receive regulatory approval from the FDA or comparable foreign regulatory authority, respectively, and we may never receive such regulatory approval for any of our product candidates.

Our future growth depends on our ability to identify and acquire or in-license products and successfully integrating such acquired or in-licensed products into our existing operations.

An important part of our business strategy is to continue to develop a pipeline of product candidates by acquiring or in-licensing products, businesses or technologies that we believe are a strategic fit with our focus on novel combinations of immuno-oncology antibodies and small molecule targeted anti-cancer agents. Future in-licenses or acquisitions, however, may entail numerous operational and financial risks, including:

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exposure to unknown liabilities;

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disruption of our business and diversion of our management’s time and attention to develop acquired products or technologies;

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difficulty or inability to secure financing to fund development activities for such acquired or in-licensed technologies in the current economic environment;

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incurrence of substantial debt or dilutive issuances of securities to pay for acquisitions;

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higher than expected acquisition and integration costs;

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increased amortization expenses;

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difficulty and cost in combining the operations and personnel of any acquired businesses with our operations and personnel;

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impairment of relationships with key suppliers or customers of any acquired businesses due to changes in management and ownership; and

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inability to retain key employees of any acquired businesses.

We have limited resources to identify and execute the acquisition or in-licensing of third-party products, businesses and technologies and integrate them into our current infrastructure. In particular, we may compete with larger pharmaceutical companies and other competitors in our efforts to establish new collaborations and in-licensing opportunities. These competitors likely will have access to greater financial resources than us and may have greater expertise in identifying and evaluating new opportunities. Moreover, we may devote resources to potential acquisitions or in-licensing opportunities that are never completed, or we may fail to realize the anticipated benefits of such efforts.

Risks Inherent in Drug Development and Commercialization

Because results of preclinical studies and early clinical trials are not necessarily predictive of future results, any product candidate we advance may not have favorable results in later clinical trials or receive regulatory approval. Moreover, interim, “top-line,” and preliminary data from our clinical trials that we announce or publish may change, or the perceived product profile may be negatively impacted, as more patient data or additional endpoints (including efficacy and safety) are analyzed.

Pharmaceutical development has inherent risks. The outcome of preclinical development testing and early clinical trials may not be predictive of the outcome of later clinical trials, and interim results of a clinical trial do not necessarily predict final results. Moreover, preclinical and clinical data are often susceptible to varying interpretations and analyses, and many companies that have believed their product candidates performed satisfactorily in preclinical studies and clinical trials have nonetheless failed to obtain marketing approval of their product candidates. Once a product candidate has displayed sufficient preclinical data to warrant clinical investigation, we will be required to demonstrate through adequate and well-controlled clinical trials that our product candidates are effective with a favorable benefit-risk profile for use in populations for their target indications before we can seek regulatory approvals for their commercial sale. Many drug candidates fail in the early stages of clinical development for safety and tolerability issues or for insufficient clinical activity, despite promising preclinical results. Accordingly, no assurance can be made that a safe and effective dose can be found for these compounds or that they will ever enter into advanced clinical trials alone or in combination with other product candidates. Moreover,

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success in early clinical trials does not mean that later clinical trials will be successful because product candidates in later-stage clinical trials may fail to demonstrate sufficient safety or efficacy despite having progressed through initial clinical testing. Companies frequently experience significant setbacks in advanced clinical trials, even after earlier clinical trials have shown promising results. There is an extremely high rate of failure of pharmaceutical candidates proceeding through clinical trials.

Individually reported outcomes of patients treated in clinical trials may not be representative of the entire population of treated patients in such studies. In addition, registration trials or larger scale Phase 3 studies, which are often conducted internationally, are inherently subject to increased operational risks compared to earlier stage studies, including the risk that the results could vary on a region to region or country to country basis, which could materially adversely affect the outcome of the study or the opinion of the validity of the study results by applicable regulatory agencies.

From time to time, we may publicly disclose top-line or preliminary data from our clinical trials, which is based on a preliminary analysis of then available data, and the results and related findings and conclusions are subject to change following a more comprehensive review of the data related to the particular study or trial. We also make assumptions, estimations, calculations and conclusions as part of our analyses of such data, and we may not have received or had the opportunity to fully and carefully evaluate all data from the particular study or trial, including all endpoints and safety data. As a result, top-line or preliminary results that we report may differ from future results of the same studies, or different conclusions or considerations may qualify such results, once additional data have been received and fully evaluated. Top-line or preliminary data also remain subject to audit and verification procedures that may result in the final data being materially different from the top-line, interim, or preliminary data we previously published. When providing top-line results, we may disclose the primary endpoint of a study before all secondary endpoints have been fully analyzed. A positive primary endpoint does not translate to all, or any, secondary endpoints being met. As a result, top-line and preliminary data should be viewed with caution until the final data are available, including data from the full safety analysis and the final analysis of all endpoints.

Further, from time to time, we may also disclose interim data from our preclinical studies and clinical trials. Interim data from clinical trials that we may complete are subject to the risk that one or more of the clinical outcomes may materially change as patient enrollment continues and more patient data become available. For example, many of the results reported in our early clinical trials rely on local investigator-assessed efficacy outcomes which may be subject to greater variability or subjectivity than results assessed in a blinded, independent, centrally reviewed manner, often required of final or later phase, adequate and well-controlled registration-directed clinical trials. If the results from our registration-directed trials are different from the results found in the earlier studies, we may need to terminate or revise our clinical development plan, which could extend the time for conducting our development program and could have a material adverse effect on our business. Also, time-to-event based endpoints such as duration of response and progression-free survival have the potential to change, sometimes drastically, with longer follow-up. In addition, as patients continue on therapy, there can be no assurance given that the final safety data from studies, once fully analyzed, will be consistent with prior safety data presented, will be differentiated from other similar agents in the same class, will support continued development, or will be favorable enough to support regulatory approvals for the indications studied. Further, others, including regulatory agencies, may not accept or agree with our assumptions, estimates, calculations, conclusions or analyses or may interpret or weigh the importance of data differently, which could impact the value of the particular program, the approvability or commercialization of the particular product candidate or product and our company in general. The information we choose to publicly disclose regarding a particular study or clinical trial is based on what is typically extensive information, and regulators or others may not agree with what we determine is material or otherwise appropriate information to include in our disclosure. If the interim, top-line or preliminary data that we report differ from final results, or if others, including regulatory authorities, disagree with the conclusions reached, our ability to obtain approval for, or successfully commercialize, our product candidates may be harmed, which could harm our business, operating results, prospects or financial condition.

Delays in clinical testing could result in increased costs to us and delay our ability to generate revenue.

Although we are conducting and planning for certain clinical trials relating to our product candidates, there can be no assurance that the FDA, or any comparable foreign regulatory authority, will accept our proposed trial designs. We may experience delays in our clinical trials and we do not know whether current or planned clinical trials will begin on time, need to be redesigned, enroll patients on time or be completed on schedule, if at all. Clinical trials can be delayed for a variety of reasons, including delays related to:

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obtaining regulatory approval to commence a trial;

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reaching agreement on acceptable terms with prospective contract research organizations (“CROs”), and clinical trial sites, the terms of which can be subject to extensive negotiation and may vary significantly among different CROs and trial sites;

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obtaining institutional review board (“IRB”), or ethics committee, as applicable, approval at each site;

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recruiting a sufficient number of suitable patients to participate in a trial;

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clinical sites deviating from trial protocol or dropping out of a trial;

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having patients complete a trial or return for post-treatment follow-up;

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developing and validating companion diagnostics on a timely basis, if required;

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obtaining resolution for any clinical holds that arise from the FDA or any comparable foreign regulatory authority;

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adding new clinical trial sites; or

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availability of raw materials or manufacturing sufficient quantities of product candidate for use in clinical trials.

We could encounter delays if a clinical trial is suspended or terminated by us, by the IRBs or ethics committees of the institutions in which such trials are being conducted, by the Data Safety Monitoring Board monitoring such trial or by the FDA or other regulatory authorities. Such authorities may impose such a suspension or termination due to a number of factors, including failure to conduct the clinical trial in accordance with regulatory requirements or our clinical protocols, inspection of the clinical trial operations or trial site by the FDA or other regulatory authorities resulting in the imposition of a clinical hold, unforeseen safety issues or adverse side effects, failure to demonstrate a benefit from using a drug candidate, changes in governmental regulations or administrative actions or lack of adequate funding to continue the clinical trial.

If we experience delays in the completion of, or termination of, any clinical trial of our product candidates, the commercial prospects of our product candidates will be harmed, and our ability to generate product revenues from any of these product candidates will be delayed, or such revenues may not be generated at all. In addition, any delays in completing our clinical trials will increase our costs, slow down our product candidate development and approval process and jeopardize our ability to commence product sales and generate revenues. Any of these occurrences may harm our business, financial condition and prospects significantly. In addition, many of the factors that cause, or lead to, a delay in the commencement or completion of clinical trials may also ultimately lead to the denial of regulatory approval of our product candidates.

Difficulties in the enrollment of patients in clinical trials may prevent or delay receipt of necessary regulatory approvals.

Patient enrollment, a significant factor in the timing of clinical trials, is affected by many factors including the size and nature of the patient population, the proximity of patients to clinical sites, the eligibility criteria for the trial, the design of the clinical trial, competing clinical trials and clinicians’ and patients’ perceptions as to the potential advantages of the drug being studied in relation to other available therapies, including any new drugs that may be approved for the indications we are investigating. Furthermore, we intend to rely on CROs and clinical trial sites to ensure the proper and timely conduct of our clinical trials and we intend to have agreements governing their committed activities, however, we will have limited influence over their actual performance.

We may not be able to initiate or continue clinical trials for one or more of our product candidates if we are unable to locate and enroll a sufficient number of eligible patients to participate in these trials as required by the FDA or similar regulatory authorities outside the United States. Some of our competitors have ongoing clinical trials for product candidates that treat the same indications that we are targeting for our product candidates, and patients who would otherwise be eligible for our clinical trials may instead enroll in clinical trials of our competitors’ product candidates. Available therapies for the indications we are pursuing can also affect enrollment in our clinical trials. Patient enrollment is affected by other factors including:

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the severity of the disease under investigation;

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the eligibility criteria for the study in question;

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the perceived risks and benefits of the product candidate under study;

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the efforts to facilitate timely enrollment in clinical trials;

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the patient referral practices of physicians;

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the number of clinical trials sponsored by other companies for the same patient population;

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the ability to monitor patients adequately during and after treatment; and

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the proximity and availability of clinical trial sites for prospective patients.

Our inability to enroll a sufficient number of patients for our clinical trials would result in significant delays and could require us to abandon one or more clinical trials altogether. Enrollment delays in our clinical trials may result in increased development costs for our product candidates or future product candidates, which would cause the value of our company to decline and limit our ability to obtain additional financing.

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Russian military action in Europe may impact foreign countries in which we enrolled patients in our clinical trials.

In February 2022, Russia commenced a military invasion of Ukraine. Russia’s invasion and the ensuing response by Ukraine may prevent the FDA from auditing our five clinical sites that enrolled a total of 17 patients in these countries during its review of our BLA for cosibelimab. If we are delayed or not able to obtain regulatory approval, our business may be adversely affected.

We may not receive regulatory approval for our product candidates, or their approval may be delayed, which would have a material adverse effect on our business and financial condition.

Our product candidates and the activities associated with their development and commercialization, including their design, testing, manufacture, safety, efficacy, recordkeeping, labeling, storage, approval, advertising, promotion, sale and distribution, are subject to comprehensive regulation by the FDA, by other regulatory agencies in the United States, by the European Medicines Agency and by comparable foreign regulatory authorities outside the United States. Failure to obtain marketing approval for one or more of our product candidates or any future product candidate will prevent us from commercializing the product candidate. We have not received approval to market any of our product candidates from regulatory authorities in any jurisdiction. We have only limited experience in filing and supporting the applications necessary to gain marketing approvals and expect to rely on third-party CROs and other third-party vendors to assist us in this process. Securing marketing approval requires the submission of extensive preclinical and clinical data and supporting information to regulatory authorities for each therapeutic indication to establish the product candidate’s safety and efficacy. Securing marketing approval also requires the submission of information about the product manufacturing process to, and inspection of manufacturing facilities by, regulatory authorities. One or more of our product candidates or any future product candidate may not be effective, may be only moderately effective or may prove to have undesirable or unintended side effects, toxicities or other characteristics that may preclude our obtaining marketing approval or prevent or limit commercial use. If any of our product candidates or any future product candidate receives marketing approval, the accompanying label may limit the approved use of our drug by severity of disease, patient group, or include contraindications, interactions, or warnings, which could limit sales of the product.

The process of obtaining marketing approval, both in the United States and abroad, is expensive, may take many years if approval is obtained at all, and can vary substantially based upon a variety of factors, including the type, complexity and novelty of the product candidates involved. Changes in marketing approval policies during the development period, changes in available therapies and standards of care, changes in or the enactment of additional statutes or regulations, or changes in regulatory review for each submitted product application, may cause delays in the approval or rejection of an application. Regulatory authorities have substantial discretion in the approval process and may refuse to accept any application or may decide that our study design, including the control arm used in our study, or data are insufficient for approval and require additional preclinical studies or clinical trials. In addition, varying interpretations of the data obtained from preclinical and clinical testing could delay, limit or prevent marketing approval of a product candidate. Any marketing approval we ultimately obtain may be limited or subject to restrictions or post-approval commitments that render the approved product not commercially viable.

Under the FDA’s accelerated approval regulations, which only apply to certain drug products, the FDA may grant marketing approval for a new drug product on the basis of adequate and well-controlled clinical trials establishing that the drug product has an effect on a surrogate endpoint that is reasonably likely, based on epidemiologic, therapeutic, pathophysiologic, or other evidence, to predict clinical benefit or on the basis of an effect on a clinical endpoint other than survival or irreversible morbidity. While we may undertake development programs for one or more of our product candidates that we believe, if successful, could support a submission for marketing approval under the accelerated approval regulations, we may ultimately fail to meet the criteria to do so, which may cause delays in the approval or rejection of an application.

If we experience delays in obtaining approval or if we fail to obtain approval of one or more of our product candidates or any future product candidate, the commercial prospects for our product candidates may be harmed and our ability to generate revenue will be materially impaired.

In addition, even if we were to obtain approval, regulatory authorities may approve any of our product candidates or any future product candidate for fewer or more limited indications than we request, may not approve the price we intend to charge for our products, may grant approval contingent on the performance of costly post-marketing studies, including clinical trials, or may approve a product candidate with a label that does not include the labeling claims necessary or desirable for the successful commercialization of that product candidate. The regulatory authority may also require the label to contain warnings, contraindications, or precautions that limit the commercialization of that product. Any of these scenarios could compromise the commercial prospects for one or more of our product candidates or any future product candidate.

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If serious adverse or unacceptable side effects are identified during the development of one or more of our product candidates or any future product candidate, we may need to abandon or limit our development of some of our product candidates.

If one or more of our product candidates or any future product candidate are associated with undesirable side effects or adverse events in clinical trials or have characteristics that are unexpected, we may need to abandon their development or limit development to more narrow uses or subpopulations in which the adverse events, undesirable side effects or other characteristics are less prevalent, less severe or more acceptable from a risk-benefit perspective. In our industry, many compounds that initially showed promise in early-stage testing have later been found to cause serious adverse events that prevented further development of the compound. In the event that our clinical trials reveal a high or unacceptable severity and prevalence of adverse events, our trials could be suspended or terminated and the FDA or comparable foreign regulatory authorities could order us to cease further development or deny approval of one or more of our product candidates or any future product candidate for any or all targeted indications. The FDA could also issue a letter requesting additional data or information prior to making a final decision regarding whether to approve a product candidate. The number of requests for additional data or information issued by the FDA in recent years has increased and resulted in substantial delays in the approval of several new drugs. Adverse events or undesirable side effects caused by one or more of our product candidates or any future product candidate could also result in the inclusion of unfavorable information in our product labeling, denial of regulatory approval by the FDA or other regulatory authorities for any or all targeted indications, and in turn prevent us from commercializing and generating revenues from the sale of that product candidate. Adverse events or drug-related side effects could affect patient recruitment or the ability of enrolled patients to complete the trial and could result in potential product liability claims.

Additionally, if one or more of our product candidates or any future product candidate receives marketing approval and we or others later identify undesirable side effects caused by this product, a number of potentially significant negative consequences could result, including:

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regulatory authorities may require the addition of unfavorable labeling statements, including specific warnings, black box warnings, adverse reactions, precautions, and/or contraindications;

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regulatory authorities may suspend or withdraw their approval of the product, and/or require it to be removed from the market;

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we may be required to change the way the product is administered, conduct additional clinical trials or change the labeling of the product; or

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our reputation may suffer.

Any of these events could prevent us from achieving or maintaining market acceptance of any of our product candidates or any future product candidate or could substantially increase our commercialization costs and expenses, which in turn could delay or prevent us from generating significant revenues, or any revenues, from its sale.

Public concern regarding the safety of drug products could delay or limit our ability to obtain regulatory approval, result in the inclusion of unfavorable information in our labeling, or require us to undertake other activities that may entail additional costs.

In light of widely publicized events concerning the safety risk of certain drug products, the FDA, members of Congress, the Government Accountability Office, medical professionals and the general public have raised concerns about potential drug safety issues. These events have resulted in the withdrawal of drug products, revisions to drug labeling that further limit use of the drug products and the establishment of risk management programs. The Food and Drug Administration Amendments Act of 2007 (“FDAAA”), grants significant expanded authority to the FDA, much of which is aimed at improving the safety of drug products before and after approval. In particular, the new law authorizes the FDA to, among other things, require post-approval studies and clinical trials, mandate changes to drug labeling to reflect new safety information and require risk evaluation and mitigation strategies for certain drugs, including certain currently approved drugs. It also significantly expands the federal government’s clinical trial registry and results databank, which we expect will result in significantly increased government oversight of clinical trials. Under the FDAAA, companies that violate these and other provisions of the new law are subject to substantial civil monetary penalties, among other regulatory, civil and criminal penalties. The increased attention to drug safety issues may result in a more cautious approach by the FDA in its review of data from our clinical trials. Data from clinical trials may receive greater scrutiny, particularly with respect to safety, which may make the FDA or other regulatory authorities more likely to require additional preclinical studies or clinical trials. If the FDA requires us to conduct additional preclinical studies or clinical trials prior to approving any of our product candidates, our ability to obtain approval of this product candidate will be delayed. If the FDA requires us to provide additional clinical or preclinical data following the approval of any of our product candidates, the indications for which this product candidate is approved may be limited or there may be specific warnings or limitations on dosing, and our efforts to commercialize our product candidates may be otherwise adversely impacted.

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While physicians may choose to prescribe drugs for uses that are not described in the product’s labeling and for uses that differ from those tested in clinical studies and approved by the regulatory authorities, our ability to promote products is limited to those indications that are specifically approved by the FDA, or similar regulatory authorities outside the United States. These “off-label” uses are common across medical specialties and may constitute an appropriate treatment for some patients in certain circumstances. Regulatory authorities in the U.S. generally do not regulate the practice of medicine or behavior of physicians in their choice of treatments. Regulatory authorities do, however, restrict promotion by pharmaceutical companies on the subject of off-label use. If our promotional activities fail to comply with these regulations or guidelines, we may be subject to warnings from, or enforcement action by, these authorities. In addition, our failure to follow FDA, or any applicable foreign regulatory authority, rules and guidelines relating to promotion and advertising may cause the FDA, or such applicable foreign regulatory authority, to suspend or withdraw an approved product from the market, require a recall or institute fines or penalties, or could result in disgorgement of money, operating restrictions, injunctions or criminal prosecution, any of which could harm our business.

We will need to obtain FDA approval of any proposed product brand names, and any failure or delay associated with such approval may adversely impact our business.

A pharmaceutical product cannot be marketed in the U.S. or other countries until we have completed a rigorous and extensive regulatory review process, including approval of a brand name. Any brand names we intend to use for our product candidates will require approval from the FDA regardless of whether we have secured a formal trademark registration from the United States Patent and Trademark Office (“USPTO”). The FDA typically conducts a review of proposed product brand names, including an evaluation of the potential for confusion with other product names. The FDA may also object to a product brand name if it believes the name inappropriately implies medical claims. If the FDA objects to any of our proposed product brand names, we may be required to adopt an alternative brand name for our product candidates. If we adopt an alternative brand name, we would lose the benefit of our existing trademark applications for such product candidate and may be required to expend significant additional resources in an effort to identify a suitable product brand name that would qualify under applicable trademark laws, not infringe the existing rights of third parties and be acceptable to the FDA. We may be unable to build a successful brand identity for a new trademark in a timely manner or at all, which would limit our ability to commercialize our product candidates.

If our competitors develop treatments for any of our product candidates’ target indications and those competitor products are approved more quickly, marketed more successfully or demonstrated to be more effective, the commercial opportunity for our product candidate will be reduced or eliminated.

The biotechnology and pharmaceutical industries are subject to rapid and intense technological change. We face, and will continue to face, competition in the development and marketing of our product candidates from academic institutions, government agencies, research institutions and biotechnology and pharmaceutical companies. There can be no assurance that developments by others will not render one or more of our product candidates obsolete or noncompetitive. Furthermore, new developments, including the development of other drug technologies and methods of preventing the incidence of disease, occur in the pharmaceutical industry at a rapid pace. These developments may render one or more of our product candidates obsolete or noncompetitive.

Competitors may seek to develop alternative formulations that do not directly infringe on our in-licensed patent rights. The commercial opportunity for one or more of our product candidates could be significantly harmed if competitors are able to develop alternative formulations outside the scope of our in-licensed patents. Compared to us, many of our potential competitors have substantially greater:

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capital resources;

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development resources, including personnel and technology;

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clinical trial experience;

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regulatory experience;

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expertise in prosecution of intellectual property rights; and

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manufacturing, distributing and sales and marketing experience.

As a result of these factors, our competitors may obtain regulatory approval of their products more rapidly than we are able to or may obtain patent protection or other intellectual property rights that limit our ability to develop or commercialize one or more of our product candidates. Our competitors may also develop drugs that are more effective, safe, useful and less costly than ours and may be more successful than us in manufacturing and marketing their products. Smaller or early-stage companies may also prove to be significant competitors, particularly through collaborative arrangements with large and established companies. We will also face competition from

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these third parties in establishing clinical trial sites, in patient registration for clinical trials, and in identifying and in-licensing new product candidates.

Further, generic therapies are typically sold at lower prices than branded therapies and are generally preferred by hospital formularies and managed care providers of health services. We anticipate that, if approved, our product candidates will face increasing competition in the form of generic versions of branded products of competitors, including those that have lost or will lose their patent exclusivity. In the future, we may face additional competition from a generic form of our own candidates when the patents covering them begin to expire, or earlier if the patents are successfully challenged. If we are unable to demonstrate to physicians and payers that the key differentiating features of our product candidates translate to overall clinical benefit or lower cost of care, we may not be able to compete with generic alternatives.

If any of our product candidates are successfully developed but do not achieve broad market acceptance among physicians, patients, healthcare payors and the medical community, the revenues that any such product candidates generate from sales will be limited.

Even if our product candidates receive regulatory approval, they may not gain market acceptance among physicians, patients, healthcare payors and the medical community. Coverage and reimbursement of our product candidates by third-party payors, including government payors, generally would also be necessary for commercial success. The degree of market acceptance of any approved products would depend on a number of factors, including, but not necessarily limited to:

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the efficacy and safety as demonstrated in clinical trials;

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the timing of market introduction of such product candidates as well as competitive products;

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the clinical indications for which the drug is approved;

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acceptance by physicians, major operators of hospitals and clinics and patients of the product as a safe and effective treatment;

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the potential and perceived advantages of product candidates over alternative treatments;

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the safety of product candidates in a broader patient group (i.e. based on actual use);

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the cost of treatment in relation to alternative treatments;

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the availability of adequate reimbursement and pricing by third parties and government authorities;

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changes in regulatory requirements by government authorities for our product candidates

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relative convenience and ease of administration;

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the prevalence and severity of side effects and adverse events;

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the effectiveness of our sales and marketing efforts; and

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unfavorable publicity relating to the product.

If any product candidate is approved but does not achieve an adequate level of acceptance by physicians, hospitals, healthcare payors and patients, we may not generate sufficient revenue from these products and in turn we may not become or remain profitable.

Reimbursement may be limited or unavailable in certain market segments for our product candidates, which could make it difficult for us to sell our products profitably.

There is significant uncertainty related to the third-party coverage and reimbursement of newly approved drugs. Such third-party payors include government health programs such as Medicare, managed care providers, private health insurers and other organizations. We intend to seek approval to market our product candidates in the U.S., Europe and other selected foreign jurisdictions. Market acceptance and sales of our product candidates in both domestic and international markets will depend significantly on the availability of adequate coverage and reimbursement from third-party payors for any of our product candidates and may be affected by existing and future health care reform measures.

Government and other third-party payors are increasingly attempting to contain healthcare costs by limiting both coverage and the level of reimbursement for new drugs and, as a result, they may not cover or provide adequate payment for our product candidates. These payors may conclude that our product candidates are less safe, less effective or less cost-effective than existing or future introduced products, and third-party payors may not approve our product candidates for coverage and reimbursement or may cease providing coverage and reimbursement for these product candidates.

Obtaining coverage and reimbursement approval for a product from a government or other third-party payor is a time consuming and costly process that could require us to provide to the payor supporting scientific, clinical and cost-effectiveness data for the use of our

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products. We may not be able to provide data sufficient to gain acceptance with respect to coverage and reimbursement. If reimbursement of our future products is unavailable or limited in scope or amount, or if pricing is set at unsatisfactory levels, it may impact the market acceptance of our products and we may be unable to achieve or sustain profitability.

In some foreign countries, particularly in the European Union, the pricing of prescription pharmaceuticals is subject to governmental control. In these countries, pricing negotiations with governmental authorities can take considerable time after the receipt of marketing approval for a product candidate. To obtain reimbursement or pricing approval in some countries, we may be required to conduct additional clinical trials that compare the cost-effectiveness of our product candidates to other available therapies. If reimbursement of our product candidates is unavailable or limited in scope or amount in a particular country, or if pricing is set at unsatisfactory levels, we may be unable to achieve or sustain profitability of our products in such country.

If we are unable to establish sales, marketing, and distribution capabilities or to enter into agreements with third parties to market and sell our product candidates, we may be unsuccessful in commercializing our product candidates, if they are approved.

We currently do not have a marketing or sales organization for the marketing, sales and distribution of pharmaceutical products. In order to commercialize any approved product candidate, we would need to build marketing, sales, distribution, managerial and other non-technical capabilities, or arrange for third parties to perform these services, and we may be unsuccessful in doing so. In the event of successful development and regulatory approval of any of our current or future product candidates, we expect to build a targeted specialist sales force to market or co-promote the product. There are risks involved with establishing our own sales, marketing and distribution capabilities. For example, recruiting and training a sales force is expensive and time consuming and could delay any product launch. If the commercial launch of a product candidate for which we recruit a sales force and establish marketing capabilities is delayed or does not occur for any reason, we would have prematurely or unnecessarily incurred these commercialization expenses. This may be costly, and our investment would be lost if we cannot retain or reposition our sales and marketing personnel.

Factors that may inhibit our efforts to commercialize our products on our own include:

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our inability to recruit, train and retain adequate numbers of effective sales and marketing personnel;

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the inability of sales personnel to obtain access to physicians or persuade adequate numbers of physicians to prescribe any future products;

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the lack of complementary or other products to be offered by sales personnel, which may put us at a competitive disadvantage from the perspective of sales efficiency relative to companies with more extensive product lines; and

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unforeseen costs and expenses associated with creating our own sales and marketing organization.

We face potential product liability exposure, and if successful claims are brought against us, we may incur substantial liability for one or more of our product candidates or a future product candidate we may license or acquire and may have to limit their commercialization.

The use of one or more of our product candidates and any future product candidate we may license or acquire in clinical trials and the sale of any products for which we obtain marketing approval expose us to the risk of product liability claims. For example, we may be sued if any product we develop allegedly causes injury or is found to be otherwise unsuitable during clinical testing, manufacturing, marketing or sale. Any such product liability claims may include allegations of defects in manufacturing, defects in design, a failure to warn of dangers inherent in the product, negligence, strict liability or a breach of warranties. Product liability claims might be brought against us by consumers, health care providers or others using, administering or selling our products. If we cannot successfully defend ourselves against these claims, we will incur substantial liabilities. Regardless of merit or eventual outcome, liability claims may result in:

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withdrawal of clinical trial participants;

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suspension or termination of clinical trial sites or entire trial programs;

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decreased demand for any product candidates or products that we may develop;

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initiation of investigations by regulators;

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impairment of our business reputation;

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costs of related litigation;

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substantial monetary awards to patients or other claimants;

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loss of revenues;

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reduced resources of our management to pursue our business strategy; and

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the inability to commercialize our product candidate or future product candidates.

We have obtained, and will continue to obtain, limited product liability insurance coverage for any and all of our current and future clinical trials. However, our insurance coverage may not reimburse us or may not be sufficient to reimburse us for any expenses or losses we may suffer. Moreover, insurance coverage is becoming increasingly expensive, and, in the future, we may not be able to maintain insurance coverage at a reasonable cost or in sufficient amounts to protect us against losses due to liability. If we obtain marketing approval for one or more of our product candidates in development, we intend to expand our insurance coverage to include the sale of commercial products, but we may be unable to obtain commercially reasonable product liability insurance for any products approved for marketing. On occasion, large judgments have been awarded in class action lawsuits based on drugs that had unanticipated side effects. A successful product liability claim or series of claims brought against us could cause our stock price to fall and, if judgments exceed our insurance coverage, could decrease our cash and adversely affect our business.

Risks Related to Reliance on Third Parties

We have contracted with third parties for the manufacture of our approved products, if any. If such contract manufacturer fails to timely produce sufficient product volume, to pass regulatory inspections or re-inspections, or to comply with applicable regulations, the commercialization of our product candidates may be delayed, we may be unable to meet market demand, and we may lose potential revenues.

The manufacture of pharmaceutical products requires significant expertise and capital investment, including the development of advanced manufacturing techniques and process controls, and the use of specialized processing equipment. We have entered into development and supply agreements with one or more contract manufacturers for the completion of pre-commercialization manufacturing development activities and the manufacture of commercial supplies for each of our product candidates. Any termination or disruption of our relationships with our contract manufacturers may materially harm our business and financial condition and frustrate any commercialization efforts for each respective product candidate.

All of our contract manufacturers must comply with strictly enforced federal, state and foreign regulations, including cGMP requirements enforced by the FDA through its establishment inspection program. We are required by law to establish adequate oversight and control over raw materials, components and finished products furnished by our third-party suppliers and contract manufacturers, but we have little control over their compliance with these regulations.

Any failure to pass regulatory inspections or re-inspections, or comply with applicable regulations may result in fines and civil penalties, suspension of production, restrictions on imports and exports, suspension or delay in product approval, product seizure or recall, or withdrawal of product approval, and would limit the availability of our product and customer confidence in our product. Any manufacturing defect or error discovered after products have been produced and distributed could result in even more significant consequences, including costly recall procedures, re-stocking costs, potential for breach of contract claims, damage to our reputation and potential for product liability claims.

If the contract manufacturers upon whom we rely to manufacture one or more of our product candidates, and any future product candidate we may in-license, fails to deliver the required commercial quantities on a timely basis at commercially reasonable prices, we would likely be unable to meet demand for our products and we would lose potential revenues.

We rely, and expect to continue to rely, on third parties to conduct our preclinical studies and clinical trials. Those third parties may perform unsatisfactorily, fail to meet deadlines for trial completion, or to comply with applicable regulatory requirements.

We rely on third-party CROs and site management organizations to conduct some of our preclinical studies and all our clinical trials for our product candidates, and plan to do the same for any future product candidate. We expect to continue to rely on third parties, such as CROs, site management organizations, image reading vendors, laboratories, clinical data management organizations, medical institutions and clinical investigators, to conduct some of our preclinical studies and all of our clinical trials. The agreements with these third parties might terminate for a variety of reasons, including a failure to perform by the third parties. If we need to enter into alternative arrangements, that could delay our product development activities.

Our reliance on these third parties for research and development activities reduces our control over these activities but does not relieve us of our responsibilities. For example, we remain responsible for ensuring that each of our preclinical studies and clinical trials are

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conducted in accordance with the general investigational plan and protocols for the trial and for ensuring that our preclinical studies are conducted in accordance with good laboratory practices (“GLPs”) as appropriate. Moreover, the FDA requires us to comply with standards, commonly referred to as good clinical practices (“GCPs”), for conducting, recording and reporting the results of clinical trials to assure that data and reported results are credible and accurate and that the rights, integrity and confidentiality of trial participants are protected. Regulatory authorities enforce these requirements through periodic inspections of trial sponsors, clinical investigators and trial sites. If we or any of our clinical research organizations or other third-party vendors, institutions or investigators fail to pass regulatory inspections or fail to comply with applicable GCPs, the clinical data generated in our clinical trials may be deemed unreliable and the FDA or comparable foreign regulatory authorities may require us to perform additional clinical trials before approving our marketing applications. We cannot assure you that upon inspection by a regulatory authority, such regulatory authority will determine that any of our clinical trials complies with GCP regulations. In addition, our clinical trials must be conducted with product produced under cGMP regulations. Our failure to comply with these regulations may require us to repeat clinical trials, which would delay the regulatory approval process. We also are required to register ongoing clinical trials and post the results of completed clinical trials on a government-sponsored database, ClinicalTrials.gov, within specified timeframes. Failure to do so can result in fines, adverse publicity and civil and criminal sanctions.

The third parties with whom we have contracted to help perform our preclinical studies and/or clinical trials may also have relationships with other entities, some of which may be our competitors. If these third parties do not successfully carry out their contractual duties, meet expected deadlines or conduct our preclinical studies or clinical trials in accordance with regulatory requirements or our stated protocols, we will not be able to obtain, or may be delayed in obtaining, marketing approvals for our product candidates and will not be able to, or may be delayed in our efforts to, successfully commercialize our product candidates.

If any of our relationships with these third-party CROs or site management organizations terminate, we may not be able to enter into arrangements with alternative CROs or site management organizations or to do so on commercially reasonable terms. Switching or adding additional CROs or site management organizations involves additional cost and requires management time and focus. In addition, there is a natural transition period when a new CRO or site management organization commences work. As a result, delays could occur, which could compromise our ability to meet our desired development timelines. Though we carefully manage our relationships with our CROs or site management organizations, there can be no assurance that we will not encounter similar challenges or delays in the future. Forces beyond our control could disrupt the ability of our third-party CROs, site management organizations, image reading vendors, laboratories, clinical data management organizations, medical institutions and clinical investigators to conduct our preclinical studies and our clinical trials for our product candidates and for any future product candidate.

We rely, and expect to continue to rely, on third parties for the manufacture of our product candidates for preclinical and clinical testing, and for the future commercialization of our approved products, if any. Reliance on third parties increases the risk that we will not have sufficient quantities of our products or such quantities at an acceptable cost, which could delay, prevent or impair our development or commercialization efforts.

We do not have any manufacturing facilities. We rely, and expect to continue to rely, on third parties for the manufacture of our product candidates for preclinical and clinical testing, and plan to do so for commercial manufacture of any of our product candidates that may receive marketing approval. This reliance on third parties increases the risk that we will not have sufficient quantities of our product candidates or any future product candidate or such quantities at an acceptable cost or quality, which could delay, prevent or impair our development or commercialization efforts.

We also expect to rely on third-party manufacturers or third-party collaborators for the manufacture of commercial supply of any product candidates for which our collaborators or we may obtain marketing approval. We may be unable to establish or maintain any agreements with third-party manufacturers or to do so on acceptable terms. Even if we are able to establish agreements with third-party manufacturers, reliance on third-party manufacturers entails additional risks, including:

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reliance on the third party for regulatory compliance and quality assurance, while still being required by law to establish adequate oversight and control over products furnished by that third party;

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the possible breach of the manufacturing agreement by the third party;

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manufacturing delays if our third-party manufacturers are unable to obtain raw materials due to supply chain disruptions, give greater priority to the supply of other products over our product candidates or otherwise do not satisfactorily perform according to the terms of the agreement between us;

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the possible misappropriation of our proprietary information, including our trade secrets and know-how; and

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the possible termination or nonrenewal of the agreement by the third party at a time that is costly or inconvenient for us.

We rely on our third-party manufacturers to produce or purchase from third-party suppliers the materials necessary to produce our product candidates for our preclinical and clinical trials. There are a limited number of suppliers for raw materials that we use to manufacture our drugs and there may be a need to assess alternate suppliers to prevent a possible disruption of the manufacture of the materials necessary to produce our product candidates for our preclinical and clinical trials, and if approved, ultimately for commercial sale. We do not have any control over the process or timing of the acquisition of these raw materials by our third-party manufacturers. Forces beyond our control could disrupt the global supply chain and impact our or our third-party manufacturers’ ability to obtain raw materials or other products necessary to manufacture our product candidates. Any significant delay in the supply of a product candidate, or the raw material components thereof, for an ongoing preclinical or clinical trial due to the need to replace a third-party manufacturer could considerably delay completion of our preclinical or clinical trials, product testing and potential regulatory approval of our product candidates. If our third-party manufacturers or we are unable to purchase these raw materials after regulatory approval has been obtained for a product candidate, the commercial launch of that product candidate would be delayed or there would be a shortage in supply, which would impair our ability to generate revenues from the sale of our product candidates.

The facilities used by our third-party manufacturers to manufacture our product candidates must be approved by the FDA pursuant to inspections that will be conducted after we submit an NDA or BLA to the FDA. We are required by law to establish adequate oversight and control over raw materials, components and finished products furnished by our third-party manufacturers, but we do not control the day-to-day manufacturing operations of, and are dependent on, our third-party manufacturers for compliance with cGMP regulations for manufacture of our product candidates. Third-party manufacturers may not be able to comply with the cGMP regulations or similar regulatory requirements outside the United States. Our failure, or the failure of our third-party manufacturers, to comply with applicable regulations and pass regulatory inspections could result in sanctions being imposed on us, including clinical holds, fines, injunctions, restrictions on imports and exports, civil penalties, delays, suspension or withdrawal of approvals, license revocation, seizures or recalls of product candidates or products, operating restrictions and criminal prosecutions, any of which could significantly and adversely affect supplies of our products.

In 2023, our contract manufacturer for cosibelimab received certain observations from the FDA on Form 483 related to a multi-sponsor on-site inspection. In December 2023, the FDA issued a CRL for the cosibelimab BLA due to those inspection issues. Checkpoint intends to seek to address the issues raised in the CRL in a potential BLA resubmission. The FDA’s review of our planned resubmission may require a re-inspection of our third-party contract manufacturing organization. There is no guarantee that the FDA will agree with the response and remediations in a timely manner or at all, or that our third party-contract manufacturing organization will pass a regulatory re-inspection, which could negatively impact our ability to obtain regulatory approval for cosibelimab or obtain approval within reasonable timelines. Any further delays in approval will continue to increase our costs and could further delay or impede our ability to commence product sales and generate revenues.

One or more of the product candidates that we may develop may compete with other product candidates and products for access to manufacturing facilities. There are a limited number of manufacturers that operate under cGMP regulations and that might be capable of manufacturing for us. Any performance failure on the part of our existing or future third-party manufacturers could delay clinical development or marketing approval. We do not currently have arrangements in place for redundant supply or a second source for bulk drug substance or the manufacture of drug product. If our current third-party manufacturers cannot perform as agreed, we may be required to replace such manufacturers. We may incur added costs and delays in identifying and qualifying any replacement manufacturers.

The U.S. DEA restricts the importation of a controlled substance finished drug product when the same substance is commercially available in the United States, which could reduce the number of potential alternative manufacturers for one or more of our product candidates.

Our current and anticipated future dependence upon others for the manufacture of our product candidates or products may adversely affect our future profit margins and our ability to commercialize any products that may receive marketing approval on a timely and competitive basis.

We also expect to rely on other third parties to store and distribute drug supplies for our clinical trials. Any performance failure on the part of our distributors could delay clinical development or marketing approval of our product candidates or commercialization of our products, if approved, producing additional losses and depriving us of potential product revenue.

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We rely on clinical data and results obtained by third parties that could ultimately prove to be inaccurate or unreliable.

As part of our strategy to mitigate development risk, we seek to develop product candidates with well-studied mechanisms of action and may utilize biomarkers to assess potential clinical efficacy early in the development process. This strategy necessarily relies upon clinical data and other results obtained by third parties that may ultimately prove to be inaccurate or unreliable. Further, such clinical data and results may be based on products or product candidates that are significantly different from our product candidates or any future product candidate. If the third-party data and results we rely upon prove to be inaccurate, unreliable or not applicable to our product candidates or future product candidate, we could make inaccurate assumptions and conclusions about our product candidates and our research and development efforts could be compromised.

Risks Relating to Legislation and Regulation Affecting the Biopharmaceutical and Other Industries

We cannot predict the likelihood, nature or extent of government regulation that may arise from future legislation or administrative or executive action, either in the United States or abroad.

We cannot predict the likelihood, nature or extent of how government regulation that may arise from future legislation or administrative or executive action taken by the U.S. presidential administration may impact our business and industry. In particular, the U.S. President has taken several executive actions, specifically through rulemaking and guidance, that could impact the pharmaceutical business and industry. A few of the major administrative actions include:

On October 9, 2019, the Centers for Medicare & Medicaid Services (“CMS”) issued a proposed rule entitled, Modernizing and Clarifying the Physician Self-Referral Regulations and on the same day the HHS Office of Inspector General issued a similar rule, entitled Revisions to Safe Harbors Under the Anti-Kickback Statute, and Civil Monetary penalty Rules Regarding Beneficiary Inducements. The proposed rules are an effort to reform regulations dealing with anti-kickback and self-referral laws. The proposals are attempting to allow certain financial arrangements that would otherwise violate anti-kickback and self-referral laws for providers that are participating in value-based payment arrangements. The proposed rule could impact drug purchasing behavior to ensure providers are within their budget and/or restructure existing payment structures between providers and manufacturers.

On October 30, 2019, the Administration issued an advanced notice of proposed rulemaking (“ANPRM”) entitled, International Pricing Index Model for Medicare Part B Drugs. This ANPRM is soliciting feedback on a potential proposal to align United States drug prices in the Medicare Part B program with international prices. It also solicits public feedback on a policy that would allowing private-sector vendors to negotiate prices, take title to drugs, and improve competition for hospital and physician business. Although this is only a notice for a potential rule, it signals the Administration’s desire to regulatorily influence the United States drug pricing system that could adversely affect the industry.

On November 15, 2019, CMS issued a proposed rule entitled, Transparency in Coverage and finalized the Calendar Year (“CY”) 2020 Outpatient Prospective Payment System (“OPPS”) & Ambulatory Surgical Center Price Transparency Requirements for Hospitals to Make Standard Charges Rule. Together the rules would increase price transparency through health plans and in hospitals. The affects may influence consumer purchasing habits in the health care sector as a whole. Although the transparency provisions are not yet in effect and the hospital price transparency requirements are subject to litigation, there could be implications for the industry related to drug pricing if or when it is enacted.

On November 18, 2019, CMS issued a proposed rule entitled, Medicaid Fiscal Accountability Regulation (“MFAR”). The proposed rule would significantly impact states’ ability to finance their Medicaid programs. If finalized, the MFAR could force states to restructure their Medicaid financing that could disincentivize or change state prescription drug purchasing behavior that would adversely impact the industry.

On December 18, 2019, the FDA issued a proposed rule entitled, Importation of Prescription Drugs. The proposed rule would allow the importation of certain prescription drugs from Canada. If finalized, states or other non-federal government entities would be able to submit importation program proposals to FDA for review and authorization. This proposed rule could also influence pricing practices in the United States.

On January 30, 2020, CMS issued a state waiver option entitled, Health Adult Opportunity (“HAO”). The HAO would allow states to restructure benefits and coverage policies for their Medicaid programs. The HAO will provide states administrative flexibilities in exchange for a capped federal share. The cap on the federal share is commonly referred to as a “block grant.” Importantly, the HAO allows states to set formularies that align with Essential Health Benefit requirements while still requiring manufacturers to participate in the Medicaid Rebate Program. Depending on utilization of the HAO by states, it could impact the industry – especially if states elect to use a formulary.

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We are subject to new legislation, regulatory proposals and managed care initiatives that may increase our costs of compliance and adversely affect our ability to market our products, obtain collaborators and raise capital.

In the United States and certain foreign jurisdictions, there have been, and we expect there will continue to be, a number of legislative and regulatory changes to the healthcare system. In March 2010, the Patient Protection and Affordable Care Act, as amended by the Health Care and Education Reconciliation Act of 2010, or collectively, the ACA, was signed into law, which substantially changed the way healthcare is financed by both governmental and private insurers in the United States. By way of example, the ACA increased the minimum level of Medicaid rebates payable by manufacturers of brand name drugs from 15.1% to 23.1%; it required collection of rebates for drugs paid by Medicaid managed care organizations; it imposed a non-deductible annual fee on pharmaceutical manufacturers or importers who sell certain “branded prescription drugs” to specified federal government programs; it implemented a new methodology under which rebates owed by manufacturers under the Medicaid Drug Rebate Program are calculated for drugs that are inhaled, infused, instilled, implanted, or injected; it expanded the eligibility criteria for Medicaid programs; it created a new Patient-Centered Outcomes Research Institute to oversee, identify priorities in, and conduct comparative clinical effectiveness research, along with funding for such research; and it established a Center for Medicare and Medicaid Innovation (“CMMI”) at CMS to test innovative payment and service delivery models to lower Medicare and Medicaid spending, potentially including prescription drug spending.

Since its enactment, there have been executive, judicial and Congressional challenges to certain aspects of the ACA, and we expect there will be additional challenges and amendments to the ACA in the future. President Trump signed several Executive Orders and other directives designed to delay the implementation of certain provisions of the ACA or otherwise circumvent some of the requirements for health insurance mandated by the ACA. Concurrently, Congress has considered legislation that would repeal or repeal and replace all or part of the ACA. While Congress has not passed comprehensive repeal legislation, several bills affecting the implementation of certain taxes under the ACA have been enacted. For example, in 2017, Congress enacted the Tax Cuts and Jobs Act, which eliminated the tax-based shared responsibility payment imposed by the ACA on certain individuals who fail to maintain qualifying health coverage for all or part of a year, a process that is commonly referred to as the “individual mandate.” In addition, the Further Consolidated Appropriations Act, 2020 permanently eliminated, effective January 1, 2020, the ACA-mandated “Cadillac” tax on high-cost employer-sponsored health coverage and medical device tax; and, effective January 1, 2021, it also eliminated the health insurance tax. On December 14, 2018, the U.S. District Court for the Northern District of Texas ruled that the individual mandate is a critical and inseverable feature of the ACA, and therefore, because it was repealed as part of the Tax Act, the remaining provisions of the ACA are invalid as well. On December 18, 2019, the U.S. Court of Appeals for the Fifth Circuit ruled that the individual mandate was unconstitutional and remanded the case back to the District Court to determine whether the remaining provisions of the ACA are invalid as well. On June 17, 2021, the U.S. Supreme Court reversed the ruling of the Fifth Circuit, holding that the challengers lacked standing to sue and otherwise abstaining from reaching the merits of the case. Notwithstanding the resolution of this legal challenge, there may be other efforts to challenge, repeal, or replace the ACA. We are continuing to monitor any changes to the ACA that, in turn, may potentially impact our business in the future.

President Joseph R. Biden, Jr. signed an Executive Order on Strengthening Medicaid and the Affordable Care Act, stating his administration’s intentions to reverse the actions of his predecessor and strengthen the ACA. As part of this Executive Order, the Department of Health and Human Services, United States Treasury, and the Department of Labor are directed to review all existing regulations, orders, guidance documents, policies, and agency actions and to consider if they are consistent with ensuring coverage under the ACA making high-quality healthcare affordable and accessible to Americans. We are unable to predict the likelihood of changes to the ACA or other healthcare laws which may negatively impact our profitability.

President Biden intends, as his predecessor did, to take action against drug prices which are considered “high.” Such measures could be addressed in a legislative package later in 2021 or with the reauthorization of the Prescription Drug User Fee Act (“PDUFA”) in 2022. Drug pricing continues to be a subject of debate at the executive and legislative levels of U.S. government and we expect to see legislation focusing on this in the coming year. The American Rescue Plan Act of 2021 signed into law by President Biden on March 14, 2021 includes a provision that will eliminate the statutory cap on rebates drug manufacturers pay to Medicaid beginning in January 2024. With the elimination of the rebate cap, manufacturers may be required to compensate states in an amount greater than what the state Medicaid programs pay for the drug.

Other legislative changes have been proposed and adopted since the ACA was enacted. These changes include aggregate reductions to Medicare payments to providers of up to 2% per fiscal year, effective April 1, 2013, which, due to subsequent legislative amendments, will stay in effect through 2030 with the exception of a temporary suspension implemented under various COVID-19 relief legislation from May 1, 2020 through December 31, 2021. Moreover, there has recently been heightened governmental scrutiny over the manner in which manufacturers set prices for their marketed products, which has resulted in several Congressional inquiries and proposed and

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enacted legislation designed, among other things, to bring more transparency to product pricing, to review the relationship between pricing and manufacturer patient assistance programs, and to reform government program reimbursement methodologies for pharmaceutical products. The Prescription Drug Pricing Reduction Act, or PDPRA, which was introduced in Congress in 2019, and again in 2020, proposed to, among other things, penalize pharmaceutical manufacturers for raising prices on drugs covered by Medicare Parts B and D faster than the rate of inflation, cap out-of-pocket expenses for Medicare Part D beneficiaries, and several changes to how drugs are reimbursed in Medicare Part B. A similar drug pricing bill, the Elijah E. Cummings Lower Drug Costs Now Act, proposes to enable direct price negotiations by the federal government for certain drugs (with the maximum price paid by Medicare capped based on an international index), requires manufacturers to offer these negotiated prices to other payers, and restricts manufacturers from raising prices on drugs covered by Medicare Parts B and D. This Act passed in the House of Representatives when it was introduced in 2019, and it has been introduced again in the 2021 term. We cannot predict whether any proposed legislation will become law and the effect of these possible changes on our business cannot be predicted at this time.

Our current and future relationships with customers and third-party payors in the United States and elsewhere may be subject, directly or indirectly, to applicable anti-kickback, fraud and abuse, false claims, transparency, health information privacy and security and other healthcare laws and regulations, which could expose us to criminal sanctions, civil penalties, contractual damages, reputational harm, administrative burdens and diminished profits and future earnings.

Healthcare providers, physicians and third-party payors in the United States and elsewhere will play a primary role in the recommendation and prescription of any product candidates for which we obtain marketing approval. Our future arrangements with third-party payors and customers may expose us to broadly applicable fraud and abuse and other healthcare laws and regulations, including, without limitation, the federal Anti-Kickback Statute and the federal False Claims Act, which may constrain the business or financial arrangements and relationships through which we sell, market and distribute any product candidates for which we obtain marketing approval. In addition, we may be subject to transparency laws and patient privacy regulation by U.S. federal and state governments and by governments in foreign jurisdictions in which we conduct our business. The applicable federal, state and foreign healthcare laws and regulations that may affect our ability to operate include:

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the federal Anti-Kickback Statute, which prohibits, among other things, persons from knowingly and willfully soliciting, offering, receiving or providing remuneration, directly or indirectly, in cash or in kind, to induce or reward, or in return for, either the referral of an individual for, or the purchase, order or recommendation of, any good or service, for which payment may be made under federal and state healthcare programs, such as Medicare and Medicaid;

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federal civil and criminal false claims laws and civil monetary penalty laws, including the federal False Claims Act, which impose criminal and civil penalties, including civil whistleblower or qui tam actions, against individuals or entities for knowingly presenting, or causing to be presented, to the federal government, including the Medicare and Medicaid programs, claims for payment that are false or fraudulent or making a false statement to avoid, decrease or conceal an obligation to pay money to the federal government; the federal Health Insurance Portability and Accountability Act of 1996 (“HIPAA”), which imposes criminal and civil liability for executing a scheme to defraud any healthcare benefit program or making false statements relating to healthcare matters;

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HIPAA, as amended by the Health Information Technology for Economic and Clinical Health Act of 2009 (“HITECH”), and their respective implementing regulations, which impose obligations on covered healthcare providers, health plans, and healthcare clearinghouses, as well as their business associates that create, receive, maintain or transmit individually identifiable health information for or on behalf of a covered entity, with respect to safeguarding the privacy, security and transmission of individually identifiable health information;

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the federal Open Payments program, which requires manufacturers of certain approved drugs, devices, biologics and medical supplies for which payment is available under Medicare, Medicaid or the Children’s Health Insurance Program, with specific exceptions, to report annually to the Centers for Medicare & Medicaid Services (“CMS”), information related to “payments or other transfers of value” made to physicians, which is defined to include doctors, dentists, optometrists, podiatrists and chiropractors, and teaching hospitals and applicable manufacturers and applicable group purchasing organizations to report annually to CMS ownership and investment interests held by the physicians and their immediate family members. Data collection began on August 1, 2013 with requirements for manufacturers to submit reports to CMS by March 31, 2014 and 90 days after the end each subsequent calendar year. Disclosure of such information was made by CMS on a publicly available website beginning in September 2014; and

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analogous state and foreign laws and regulations, such as state anti-kickback and false claims laws, which may apply to sales or marketing arrangements and claims involving healthcare items or services reimbursed by non-governmental third- party payors, including private insurers; state and foreign laws that require pharmaceutical companies to comply with the pharmaceutical industry’s voluntary compliance guidelines and the relevant compliance guidance promulgated by the federal

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government or otherwise restrict payments that may be made to healthcare providers; state and foreign laws that require drug manufacturers to report information related to payments and other transfers of value to physicians and other healthcare providers or marketing expenditures; and state and foreign laws governing the privacy and security of health information in certain circumstances, many of which differ from each other in significant ways and often are not preempted by HIPAA, thus complicating compliance efforts.

Efforts to ensure that our business arrangements with third parties will comply with applicable healthcare laws and regulations may involve substantial costs. It is possible that governmental authorities will conclude that our business practices may not comply with current or future statutes, regulations or case law involving applicable fraud and abuse or other healthcare laws and regulations. If our operations are found to be in violation of any of these laws or any other governmental regulations that may apply to us, we may be subject to significant civil, criminal and administrative penalties, including, without limitation, damages, fines, imprisonment, exclusion from participation in government healthcare programs, such as Medicare and Medicaid, and the curtailment or restructuring of our operations, which could have a material adverse effect on our business. If any of the physicians or other healthcare providers or entities with whom we expect to do business, including our collaborators, is found not to be in compliance with applicable laws, it may be subject to criminal, civil or administrative sanctions, including exclusions from participation in government healthcare programs, which could also materially affect our business.

Risks Related to Intellectual Property and Potential Disputes with Licensors Thereof

If we are unable to obtain and maintain sufficient patent protection for our technology and products, our competitors could develop and commercialize technology and products similar or identical to ours, and our ability to successfully commercialize our technology and products may be impaired.

Our commercial success will depend in part on obtaining and maintaining patent protection and trade secret protection in the United States and other countries with respect to our product candidates or any future product candidate that we may license or acquire and the methods we use to manufacture them, as well as successfully defending these patents and trade secrets against third-party challenges. We seek to protect our proprietary position by filing patent applications in the United States and abroad related to our novel technologies and product candidates, and by maintenance of our trade secrets through proper procedures. We will only be able to protect our technologies from unauthorized use by third parties to the extent that valid and enforceable patents or trade secrets cover them in the market they are being used or developed.

The patent prosecution process is expensive and time-consuming, and we may not be able to file and prosecute all necessary or desirable patent applications at a reasonable cost or in a timely manner. It is also possible that we will fail to identify any patentable aspects of our research and development output and methodology, and, even if we do, an opportunity to obtain patent protection may have passed. Given the uncertain and time-consuming process of filing patent applications and prosecuting them, it is possible that our product(s) or process(es) originally covered by the scope of our patent applications may change or be modified throughout the patent prosecution process, leaving our product(s) or process(es) without patent protection. If our licensors or we fail to obtain or maintain patent protection or trade secret protection for one or more product candidates or any future product candidate we may license or acquire, third parties may be able to leverage our proprietary information and products without risk of infringement, which could impair our ability to compete in the market and adversely affect our ability to generate revenues and achieve profitability. Moreover, should we enter into other collaborations we may be required to consult with or cede control to collaborators regarding the prosecution, maintenance, defense and enforcement of patents licensed or developed under such collaborations. Therefore, these patents and applications may not be prosecuted, defended, and enforced in a manner consistent with the best interests of our business.

The patent position of biotechnology and pharmaceutical companies generally is highly uncertain, involves complex legal and factual questions and has in recent years been the subject of much litigation. In addition, no consistent policy regarding the breadth of claims allowed in pharmaceutical or biotechnology patents has emerged to date in the U.S. The patent situation outside the U.S. is even more uncertain. The patent laws of foreign countries may not protect our patent rights to the same extent as the laws of the United States, and we may fail to seek or obtain patent protection in all major markets. For example, European patent law restricts the patentability of methods of treatment of the human body more than United States patent law does. Publications of discoveries in the scientific literature often lag behind the actual discoveries, and patent applications in the United States and other jurisdictions are typically not published until 18 months after a first filing, or in some cases not at all. Therefore, we cannot know with certainty whether we or our licensors were the first to make the inventions claimed in patents or pending patent applications that we own or licensed, or that we or our licensors were the first to file for patent protection of such inventions. In the event that a third party has also filed a U.S. patent application relating to our product candidates or a similar invention, depending upon the priority dates claimed by the competing parties, we may have to

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participate in interference proceedings declared by the USPTO to determine priority of invention in the U.S. The costs of these proceedings could be substantial and it is possible that our efforts to establish priority of invention would be unsuccessful, resulting in a material adverse effect on our U.S. patent position. As a result, the issuance, scope, validity, enforceability and commercial value of our or any of our respective licensors’ patent rights are highly uncertain. Our pending and future patent applications may not result in patents being issued which protect our technology or products, in whole or in part, or which effectively prevent others from commercializing competitive technologies and products. Changes in either the patent laws or interpretation of the patent laws in the United States and other countries may diminish the value of our patents or narrow the scope of our patent protection. For example, the federal courts of the United States have taken an increasingly dim view of the patent eligibility of certain subject matter, such as naturally occurring nucleic acid sequences, amino acid sequences and certain methods of utilizing the same, which include their detection in a biological sample and diagnostic conclusions arising from their detection. Such subject matter, which had long been a staple of the biotechnology and biopharmaceutical industry to protect their discoveries, is now considered, with few exceptions, ineligible in the first instance for protection under the patent laws of the United States. Accordingly, we cannot predict the breadth of claims that may be allowed or enforced in our patents or in those licensed from a third-party.

In addition, U.S. patent laws may change, which could prevent or limit us from filing patent applications or patent claims to protect products and/or technologies or limit the exclusivity periods that are available to patent holders, as well as affect the validity, enforceability, or scope of issued patents.

Moreover, the patents or patent applications owned or filed by us, or by our licensors or other collaborators, may be subject to a third-party pre-issuance submission of prior art to the USPTO, or to opposition, derivation, reexamination, inter partes review, post-grant review or interference proceedings challenging our patent rights or the patent rights of our licensors or collaborators. The costs of these proceedings could be substantial and it is possible that our efforts to establish priority of invention would be unsuccessful, resulting in a material adverse effect on our U.S. patent position. An adverse determination in any such submission, patent office trial, proceeding or litigation could reduce the scope of, render unenforceable, or invalidate, our patent rights, allow third parties to commercialize our technology or products and compete directly with us, without payment to us, or result in our inability to manufacture or commercialize products without infringing third-party patent rights. In addition, if the breadth or strength of protection provided by our patents and patent applications is threatened, it could dissuade companies from collaborating with us to license, develop or commercialize current or future product candidates.

Even if our patent applications issue as patents, they may not issue in a form that will provide us with any meaningful protection, prevent competitors from competing with us or otherwise provide us with any competitive advantage. Our competitors may be able to circumvent our owned or licensed patents by developing similar or alternative technologies or products in a non-infringing manner.

The issuance of a patent does not foreclose challenges to its inventorship, scope, validity or enforceability. Therefore, our owned and licensed patents may be challenged in the courts or patent offices in the United States and abroad. Such challenges may result in loss of exclusivity or in patent claims being narrowed, invalidated or held unenforceable, in whole or in part, which could limit our ability to stop others from using or commercializing similar or identical technology and products, or limit the duration of the patent protection of our technology and products. Given the amount of time required for the development, testing and regulatory review of new product candidates, patents protecting such product candidates might expire before or shortly after such product candidates are commercialized. As a result, our owned and licensed patent portfolio may not provide us with sufficient rights to exclude others from commercializing products similar or identical to ours.

We may need to license certain intellectual property from third parties, and such licenses may not be available or may not be available on commercially reasonable terms.

A third party may hold intellectual property, including patent rights that are important or necessary to the development and commercialization of our products. It may be necessary for us to use the patented or proprietary technology of third parties, whom may or may not be interested in granting such a license, to commercialize our products, in which case we would be required to obtain a license from these third parties on commercially reasonable terms, or our business could be harmed, possibly materially.

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We depend on our licensors to maintain and enforce the intellectual property covering certain of our product candidates. We have limited, if any, control over the resources that our licensors can or will devote to securing, maintaining, and enforcing patents protecting our product candidates.

We depend on our licensors to protect the proprietary rights covering our antibody and certain of our small molecule product candidates and we have limited, if any, control over the amount or timing of resources that they devote on our behalf, or the priority they place on, maintaining patent rights and prosecuting patent applications to our advantage. Moreover, we have limited, if any, control over the strategies and arguments employed in the maintenance of patent rights and the prosecution of patent applications to our advantage.

Our licensors, depending on the patent or application, are responsible for maintaining issued patents and prosecuting patent applications for our antibody and certain of our small molecule product candidates. We cannot be sure that they will perform as required. Should they decide they no longer want to maintain any of the patents licensed to us, they are required to afford us the opportunity to do so at our expense. If our licensors do not perform, and if we do not assume the maintenance of the licensed patents in sufficient time to make required payments or filings with the appropriate governmental agencies, we risk losing the benefit of all or some of those patent rights. Moreover, and possibly unbeknownst to us, our licensors may experience serious difficulties related to their overall business or financial stability, and they may be unwilling or unable to continue to expend the financial resources required to maintain and prosecute these patents and patent applications. While we intend to take actions reasonably necessary to enforce our patent rights, we depend, in part, on our licensors to protect a substantial portion of our proprietary rights and to inform us of the status of those protections and efforts thereto.

Our licensors may also be notified of alleged infringement and be sued for infringement of third-party patents or other proprietary rights. We may have limited, if any, control or involvement over the defense of these claims, and our licensors could be subject to injunctions and temporary or permanent exclusionary orders in the U.S. or other countries. Our licensors are not obligated to defend or assist in our defense against third-party claims of infringement. We have limited, if any, control over the amount or timing of resources, if any, that our licensors devote on our behalf or the priority they place on defense of such third-party claims of infringement.

Because of the uncertainty inherent in any patent or other litigation involving proprietary rights, we or our licensors may not be successful in defending claims of intellectual property infringement alleged by third parties, which could have a material adverse effect on our results of operations. Regardless of the outcome of any litigation, defending the litigation may be expensive, time-consuming and distracting to management.

Protecting our proprietary rights is difficult and costly, and we may be unable to ensure their protection.

The degree of future protection for our proprietary rights is uncertain, because legal means afford only limited protection and may not adequately protect our rights or permit us to gain or keep our competitive advantage, in addition to being costly and time consuming to undertake. For example:

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our licensors might not have been the first to make the inventions covered by each of our pending patent applications and issued patents;

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our licensors might not have been the first to file patent applications for these inventions;

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others may independently develop similar or alternative technologies or duplicate our product candidates or any future product candidate technologies;

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it is possible that none of the pending patent applications licensed to us will result in issued patents;

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the scope of our issued patents may not extend to competitive products developed or produced by others;

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the issued patents covering our product candidates or any future product candidate may not provide a basis for market exclusivity for active products, may not provide us with any competitive advantages, or may be challenged by third parties;

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we may not develop additional proprietary technologies that are patentable; or

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intellectual property rights of others may have an adverse effect on our business.

We may become involved in lawsuits to protect or enforce our patents or other intellectual property, which could be expensive, time consuming and unsuccessful, and an unfavorable outcome in any litigation would harm our business.

Competitors may infringe our issued patents or other intellectual property. To counter infringement or unauthorized use, we may be required to file one or more actions for patent infringement, which can be expensive and time consuming. Any claims we assert against accused infringers could provoke these parties to assert counterclaims against us alleging invalidity of our patents or that we infringe

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their patents; or provoke those parties to petition the USPTO to institute inter partes review against the asserted patents, which may lead to a finding that all or some of the claims of the asserted patents are invalid. In addition, in a patent infringement proceeding, a court may decide that a patent of ours is invalid or unenforceable, in whole or in part, construe the patent’s claims narrowly or refuse to stop the other party from using the technology at issue on the grounds that our patents do not cover the technology in question. An adverse result in any litigation proceeding could put one or more of our pending patents at risk of being invalidated, rendered unenforceable, or interpreted narrowly. Because of the substantial amount of discovery required in connection with intellectual property litigation, there is a risk that some of our confidential information could be compromised by disclosure during this type of litigation. Furthermore, adverse results on U.S. patents may affect related patents in our global portfolio.

Our ability to develop, manufacture, market and sell one or more of our product candidates or any future product candidate that we may license or acquire depends upon our ability to avoid infringing the proprietary rights of third parties. Numerous U.S. and foreign issued patents and pending patent applications, which are owned by third parties, exist in the general fields of fully human immuno-oncology targeted antibodies and targeted anti-cancer agents and cover the use of numerous compounds and formulations in our targeted markets. Because of the uncertainty inherent in any patent or other litigation involving proprietary rights, we and our licensors may not be successful in defending intellectual property claims asserted by third parties, which could have a material adverse effect on our results of operations. Regardless of the outcome of any litigation, defending the litigation may be expensive, time-consuming and distracting to management. In addition, because patent applications can take many years to issue, there may be currently pending applications that are unknown to us, which may later result in issued patents that one or more of our product candidates may infringe. There could also be existing patents of which we are not aware that one or more of our product candidates may infringe, even if only inadvertently.

Even if resolved in our favor, litigation or other legal proceedings relating to intellectual property claims may cause us to incur significant expenses and could distract our technical and management personnel from their normal responsibilities. In addition, there could be public announcements of the results of hearings, motions or other interim proceedings or developments and if securities analysts or investors perceive these results to be negative, it could have a substantial adverse effect on the price of our common stock. Such litigation or proceedings could substantially increase our operating losses and reduce the resources available for development activities or any future sales, marketing or distribution activities. We may not have sufficient financial or other resources to conduct such litigation or proceedings adequately. Some of our competitors may be able to sustain the costs of such litigation or proceedings more effectively than we can because of their greater financial resources. Uncertainties resulting from the initiation and continuation of patent litigation or other proceedings could compromise our ability to compete in the marketplace.

There is a substantial amount of litigation involving patent and other intellectual property rights in the biotechnology and biopharmaceutical industries generally. If a third-party claims that we infringe their patents or misappropriated their technology, we could face a number of issues, including:

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infringement and other intellectual property claims which, with or without merit, can be expensive and time consuming to litigate and can divert management’s attention from our core business;

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substantial damages for past infringement which we may have to pay if a court decides that our product infringes a competitor’s patent;

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a court prohibiting us from selling or licensing our product unless the patent holder licenses the patent to us, which it would not be required to do;

●

if a license is available from a patent holder, we may have to pay substantial royalties or grant cross licenses to our patents; and

●

redesigning our processes so they do not infringe, which may not be possible or could require substantial funds, time, and may result in an inferior or less-desirable process or product.

If we fail to comply with our obligations under our intellectual property licenses and third-party funding arrangements, we could lose rights that are important to our business.

We have in-licensed the rights to all of our product candidates from third parties. Any disputes between us and any of our licensors regarding our rights under our license agreements may impact our ability to develop and commercialize these product candidates. Any uncured, material breach under any of our license agreements could result in our loss of exclusive rights to one or more of our product candidates and may lead to a complete termination of our related product development efforts.

We are currently a party to license agreements with Dana-Farber, Adimab, NeuPharma and Jubilant. In the future, we may become party to additional licenses that are important for product development and commercialization. If we fail to comply with our obligations under current or future license and funding agreements, our counterparties may have the right to terminate these agreements, in which event

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we might not be able to develop, manufacture or market any product or utilize any technology that is covered by these agreements or may face other penalties under the agreements. Such an occurrence could materially and adversely affect the value of a product candidate being developed under any such agreement or could restrict our drug discovery activities. Termination of these agreements or reduction or elimination of our rights under these agreements may result in our having to negotiate new or reinstated agreements with less favorable terms, or cause us to lose our rights under these agreements, including our rights to important intellectual property or technology.

We may be subject to claims that our employees have wrongfully used or disclosed alleged trade secrets of their former employers.

As is common in the biotechnology and pharmaceutical industry, we employ individuals who were previously employed at other biotechnology or pharmaceutical companies, including our competitors or potential competitors. Although no claims against us are currently pending, we may be subject to claims that we or these employees have inadvertently or otherwise used or disclosed trade secrets or other proprietary information of their former employers. Even if frivolous or unsubstantiated in nature, litigation may be necessary to defend against these claims. Even if we are successful in defending against these claims, litigation could result in substantial costs and be a distraction to management and the implicated employee(s).

If we are unable to protect the confidentiality of our trade secrets, our business and competitive position would be harmed.

In addition to seeking patent protection for our product candidates or any future product candidate, we also rely on trade secrets, including unpatented know-how, technology and other proprietary information, to maintain our competitive position, particularly where we do not believe patent protection is appropriate or obtainable. However, trade secrets are difficult to protect. We limit disclosure of such trade secrets where possible but we also seek to protect these trade secrets, in part, by entering into non-disclosure and confidentiality agreements with parties who do have access to them, such as our employees, our licensors, corporate collaborators, outside scientific collaborators, contract manufacturers, consultants, advisors and other third parties. We also enter into confidentiality and invention or patent assignment agreements with our employees and consultants. Despite these efforts, any of these parties may breach the agreements and may unintentionally or willfully disclose our proprietary information, including our trade secrets, and we may not be able to obtain adequate remedies for such breaches. Enforcing a claim that a party illegally disclosed or misappropriated a trade secret is difficult, expensive and time-consuming, and the outcome is unpredictable. In addition, some courts inside and outside the United States are less willing or unwilling to protect trade secrets. Moreover, if any of our trade secrets were to be lawfully obtained or independently developed by a competitor, we would have no right to prevent them, or those to whom they communicate it, from using that technology or information to compete with us. If any of our trade secrets were to be disclosed to or independently developed by a competitor, our competitive position would be harmed.

Risks Relating to Our Platform and Data

Our business and operations would suffer in the event of computer system failures, cyber-attacks, or deficiencies in our or third parties’ cybersecurity.

We are increasingly dependent upon information technology systems, infrastructure, and data to operate our business. In the ordinary course of business, we collect, store, and transmit confidential information, including, but not limited to, information related to our intellectual property and proprietary business information, personal information, and other confidential information. It is critical that we maintain such confidential information in a manner that preserves its confidentiality and integrity. Furthermore, we have outsourced elements of our operations to third party vendors, who each have access to our confidential information, which increases our disclosure risk.

Although we have implemented internal security and business continuity measures and have developed an information technology infrastructure, our internal computer systems, as well as those of current and future third parties on which we rely, are vulnerable to damage from computer viruses and unauthorized access and may fail. Our information technology and other internal infrastructure systems, including corporate firewalls, servers, data center facilities, lab equipment, and internet connection, face the risk of breakdown or other damage or interruption from service interruptions, system malfunctions, natural disasters, terrorism, war, and telecommunication and electrical failures, as well as security breaches from inadvertent or intentional actions by our employees, contractors, consultants, business partners, and/or other third parties, or from cyber-attacks by malicious third parties (including the deployment of harmful malware, ransomware, denial-of-service attacks, social engineering and other means to affect service reliability and threaten the confidentiality, integrity and availability of information), each of which could compromise our system infrastructure or lead to the loss, destruction, alteration, disclosure, or dissemination of, or damage or unauthorized access to, our data or data that is processed or maintained on our behalf, or other assets.

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In addition, the loss or corruption of, or other damage to, clinical trial data from completed or future clinical trials could result in delays in our regulatory approval efforts and could significantly increase our costs to recover or reproduce the data. Likewise, we will rely on third parties for the manufacture of our current or future drug candidates and to conduct clinical trials, and similar events relating to their systems and operations could also have a material adverse effect on our business and lead to regulatory agency actions. The risk of a security breach or disruption, particularly through cyber-attacks or cyber intrusion, including by computer hackers, foreign governments, and cyber terrorists, has generally increased as the number, intensity, and sophistication of attempted attacks and intrusions from around the world have increased.

Sophisticated cyber attackers (including foreign adversaries engaged in industrial espionage) are skilled at adapting to existing security technology and developing new methods of gaining access to organizations’ sensitive business data, which could result in the loss of proprietary information, including trade secrets. We may be unable to anticipate all types of security threats and to implement preventive measures effective against all such security threats. The techniques used by cyber criminals change frequently, may not be recognized until launched, and can originate from a wide variety of sources, including outside groups such as external service providers, organized crime affiliates, terrorist organizations, or hostile foreign governments or agencies.

Any security breach or other event leading to the loss or damage to, or unauthorized access, use, alteration, disclosure, or dissemination of, personal information, including personal information regarding clinical trial subjects, contractors, directors, or employees, our intellectual property, proprietary business information, or other confidential or proprietary information, could directly harm our reputation, enable competitors to compete with us more effectively, compel us to comply with federal and/or state breach notification laws and foreign law equivalents, subject us to mandatory corrective action, or otherwise subject us to liability under laws and regulations that protect the privacy and security of personal information.

Each of the foregoing could result in significant legal and financial exposure and reputational damage that could adversely affect our business. Notifications and follow-up actions related to a security incident could impact our reputation or cause us to incur substantial costs, including legal and remediation costs, in connection with these measures and otherwise in connection with any actual or suspected security breach. Our efforts to detect and prevent security incidents and otherwise implement our internal security and business continuity measures, including those connected with any actual, potential, or anticipated attack, may cause us to incur significant cost, including those connected with the engagement of additional personnel (including third-party experts and consultants), employment protection technologies, and employee training.

The costs related to significant security breaches or disruptions could be material and our insurance policies may not be adequate to compensate us for the potential losses arising from any such disruption in, or failure or security breach of, our systems or third-party systems where information important to our business operations or commercial development is stored or processed. In addition, such insurance may not be available to us in the future on economically reasonable terms, or at all. Further, our insurance may not cover all claims made against us and could have high deductibles in any event, and defending a suit, regardless of its merit, could be costly and divert management attention. Furthermore, if the information technology systems of our third-party vendors and other contractors and consultants become subject to disruptions or security breaches, we may have insufficient recourse against such third parties and we may have to expend significant resources to mitigate the impact of such an event, and to develop and implement protections to prevent future events of this nature from occurring.

The occurrence of such a cybersecurity breach could result in interruptions in our operations, material disruption of our development programs or our business operations, and may cause us financial, legal, business, or reputational harm.

Risks Relating to Our Control by Fortress Biotech Inc.

Fortress controls a voting majority of our common stock.

Pursuant to the terms of the Class A common stock held by Fortress, Fortress is entitled to cast, for each share of Class A common stock held by Fortress, the number of votes that is equal to one and one-tenth (1.1) times a fraction, the numerator of which is the sum of the shares of outstanding common stock and the denominator of which is the number of shares of outstanding Class A common stock. Accordingly, as long as Fortress owns any shares of Class A common stock, they will be able to control or significantly influence all matters requiring approval by our stockholders, including the election of directors and the approval of mergers or other business combination transactions. The interests of Fortress may not always coincide with the interests of other stockholders, and Fortress may take actions that advance its own interests and are contrary to the desires of our other stockholders. Moreover, this concentration of voting power may delay, prevent or deter a change in control of us even when such a change may be in the best interests of all

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stockholders, could deprive our stockholders of an opportunity to receive a premium for their common stock as part of a sale of Checkpoint or our assets, and might affect the prevailing market price of our common stock.

Fortress has the right to receive a significant grant of shares of our common stock annually which will result in the dilution of your holdings of common stock upon each grant, which could reduce their value.

Under the terms of the Founders Agreement, which became effective as of March 17, 2015 and was amended and restated on July 11, 2016, Fortress has the right to receive an annual grant of shares of our common stock equal to 2.5% of the fully diluted outstanding equity at the time of issuance on January 1 of each year. This annual issuance of shares to Fortress will dilute your holdings in our common stock and, if the value of Checkpoint has not grown over the prior year, would result in a reduction in the value of your shares.

We might have received better terms from unaffiliated third parties than the terms we receive in our agreements with Fortress.

The agreements we entered into with Fortress in connection with the separation include a Management Services Agreement and the Founders Agreement. While we believe the terms of these agreements are reasonable, they might not reflect terms that would have resulted from arm’s-length negotiations between unaffiliated third parties. The terms of the agreements relate to, among other things, payment of a royalty on product sales and the provision of employment and transition services. We might have received better terms from third parties because, among other things, third parties might have competed with each other to win our business.

Risks Related to Conflicts of Interest

The Chairman of our Board of Directors is also the Executive Chairman, President and Chief Executive Officer of TGTX, with whom we previously had a collaboration agreement and a sublicense agreement. As a result, during the terms of these agreements, certain conflicts of interest could have arisen which would have required the attention of our officers and independent directors who are unaffiliated with TGTX.

In connection with our license agreement with Dana-Farber and Adimab, we entered into a collaboration agreement with TGTX to develop and commercialize the anti-PD-L1 and anti-GITR antibody research programs, including cosibelimab in the field of hematological malignancies. In connection with our license agreement with Jubilant, we entered into a sublicense agreement with TGTX to develop and commercialize the Jubilant family of patents covering compounds that inhibit BET proteins such as BRD4, including CK-103, in the field of hematological malignancies. Michael S. Weiss, our Chairman of the Board of Directors, is also the Executive Chairman, President and Chief Executive Officer of TGTX.

Effective September 30, 2023, the Company and TGTX agreed to mutually terminate these collaborations.

The dual roles of our directors who also serve in similar roles with Fortress could create a conflict of interest and will require careful monitoring by our independent directors.

We share some directors with Fortress which could create conflicts of interest between the two companies in the future. While we believe that the Founders Agreement and the Management Services Agreement were negotiated by independent parties on both sides on arm’s length terms, and the fiduciary duties of both parties were thereby satisfied, in the future situations may arise under the operation of both agreements that may create a conflict of interest. We will have to be diligent to ensure that any such situation is resolved by independent parties. In particular, under the Management Services Agreement, Fortress and its affiliates are free to pursue opportunities which could potentially be of interest to Checkpoint, and they are not required to notify Checkpoint prior to pursuing the opportunity. Any such conflict of interest or pursuit by Fortress of a corporate opportunity independent of Checkpoint could expose us to claims by our investors and creditors and could harm our results of operations.

General Risks

Major public health issues, and specifically the pandemic caused by the spread of COVID-19, could have an adverse impact on our financial condition and results of operations and other aspects of our business.

On March 11, 2020, the World Health Organization declared that the rapidly spreading COVID-19 outbreak had evolved into a pandemic.

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The COVID-19 pandemic negatively impacted the global economy, disrupted global supply chains, and created significant volatility and disruption of financial markets. Although COVID-19 has not had a material adverse effect on our business to date, if the coronavirus were to worsen, our business operations could be delayed or interrupted. For instance, our clinical trials may be affected by the pandemic. Site initiation, participant recruitment and enrollment, participant dosing, distribution of clinical trial materials, study monitoring and data analysis may be paused or delayed due to changes in hospital or university policies, federal, state or local regulations, prioritization of hospital resources toward pandemic efforts, or other reasons related to the pandemic. If the coronavirus continues to spread, or if new variants emerge, some participants and clinical investigators may not be able to comply with clinical trial protocols.

We currently rely on third parties, such as contract laboratories, contract research organizations, medical institutions and clinical investigators to conduct these studies and clinical trials. If these third parties themselves are adversely impacted by restrictions resulting from the coronavirus outbreak, we will likely experience delays and/or realize additional costs. We also rely on third parties for the manufacture of our product candidates for preclinical and clinical testing. Disruptions to the global supply chain could impact our or our third-party manufacturers’ ability to obtain raw materials or other products necessary to manufacture and distribute our product candidates. As a result, our efforts to obtain regulatory approvals for, and to commercialize, our product candidates may be delayed or disrupted.

We may not be able to manage our business effectively if we are unable to attract and retain key personnel.

We may not be able to attract and/or retain qualified management and commercial, scientific and clinical personnel in the future due to the intense competition for qualified personnel among biotechnology, pharmaceutical and other businesses. If we are not able to attract and retain necessary personnel to accomplish our business objectives, we may experience constraints that will significantly impede the achievement of our development objectives, our ability to raise additional capital and our ability to implement our business strategy.

Our employees or third-party contractors may engage in misconduct or other improper activities, including noncompliance with regulatory standards and requirements, which could have a material adverse effect on our business.

We are exposed to the risk of employee fraud or other misconduct. Misconduct by employees or third-party contractors could include intentional failures to comply with FDA regulations, provide accurate information to the FDA, comply with manufacturing standards we have established, comply with federal and state health-care fraud and abuse laws and regulations, report financial information or data accurately or disclose unauthorized activities to us. In particular, sales, marketing and business arrangements in the healthcare industry are subject to extensive laws and regulations intended to prevent fraud, kickbacks, bribery, self-dealing and other abusive practices. These laws and regulations may restrict or prohibit a wide range of pricing, discounting, marketing and promotion, sales commission, customer incentive programs and other business arrangements. Employee or third-party contractors misconduct could also involve the improper use of information obtained in the course of clinical trials, which could result in regulatory sanctions and serious harm to our reputation, as well as civil and criminal liability. The precautions we take to detect and prevent this activity may not be effective in controlling unknown or unmanaged risks or losses or in protecting us from governmental investigations or other actions or lawsuits stemming from a failure to be in compliance with such laws or regulations. If any such actions are instituted against us, and we are not successful in defending ourselves or asserting our rights, those actions could have a significant impact on our business and results of operations, including the imposition of significant fines and/or other civil and/or criminal sanctions.

If we fail to comply with environmental, health and safety laws and regulations, we could become subject to fines or penalties or incur costs that could harm our business.

We are subject to numerous environmental, health and safety laws and regulations, including those governing laboratory procedures and the handling, use, storage, treatment and disposal of hazardous materials and wastes. Our operations involve the use of hazardous and flammable materials, including chemicals and biological materials. Our operations also produce hazardous waste products. We generally contract with third parties for the disposal of these materials and wastes. We cannot eliminate the risk of contamination or injury from these materials. Although we believe that the safety procedures for handling and disposing of these materials comply with the standards prescribed by these laws and regulations, we cannot eliminate the risk of accidental contamination or injury from these materials. In the event of contamination or injury resulting from our use of hazardous materials, we could be held liable for any resulting damages, and any liability could exceed our resources. We also could incur significant costs associated with civil or criminal fines and penalties for failure to comply with such laws and regulations.

Although we maintain workers’ compensation insurance to cover us for costs and expenses we may incur due to injuries to our employees resulting from the use of hazardous materials, this insurance may not provide adequate coverage against potential liabilities. We do not


	March 31,		December 31,
	2024		2023
Accounts payable	$	11,923	$	6,570
Accrued compensation		435		1,206
Accrued Research and development		6,218		7,123
Other		583		586
Total accounts payable and accrued expenses	$	19,159	$	15,485

Exhibit No.		Description
10.1		Amended and Restarted Non-Employee Directors Compensation Plan.* #

31.1		Certification of Principal Executive Officer of Checkpoint Therapeutics, Inc. pursuant to Rule 13a-14(a)/15d-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002, dated May 10, 2024.*

31.2		Certification of Principal Financial Officer of Checkpoint Therapeutics, Inc. pursuant to Rule 13a-14(a)/15d-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002, dated May 10, 2024.*

32.1		Certification of Principal Executive Officer of Checkpoint Therapeutics, Inc. pursuant to 18 U.S.C. §1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, dated May 10, 2024.*

32.2		Certification of Principal Financial Officer of Checkpoint Therapeutics, Inc. pursuant to 18 U.S.C. §1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, dated May 10, 2024.*

101		The following financial information from the Company’s Quarterly Report on Form 10-Q for the period ended March 31, 2024, formatted in Extensible Business Reporting Language (XBRL): (i) the Condensed Consolidated Balance Sheets, (ii) the Condensed Consolidated Statements of Operations, (iii) the Condensed Consolidated Statement of Stockholders’ Equity, (iv) the Condensed Consolidated Statements of Cash Flows, and (v) Notes to the Condensed Consolidated Financial Statements (filed herewith).

104		Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101).

	Checkpoint Therapeutics, Inc.
	(Registrant)
Date : May 10, 2024	By:	/s/ James F. Oliviero
	James F. Oliviero
	President and Chief Executive Officer
	(Principal Executive Officer)

		Page No.
PART I. FINANCIAL INFORMATION

Item 1.	Financial Statements	3

	Condensed Balance Sheets as of March 31, 2024 and December 31, 2023	3

	Condensed Statements of Operations for the three months ended March 31, 2024 and 2023	4

	Condensed Statements of Stockholders’ Equity (Deficit) for the three months ended March 31, 2024 and 2023	5

	Condensed Statements of Cash Flows for the three months ended March 31, 2024 and 2023	6

	Notes to Condensed Financial Statements	7

Item 2.	Management’s Discussion and Analysis of the Results of Operations	23

Item 3.	Quantitative and Qualitative Disclosures about Market Risk	27

Item 4.	Controls and Procedures	27

PART II. OTHER INFORMATION

Item 1.	Legal Proceedings	28

Item 1A.	Risk Factors	28

Item 2.	Recent Sales of Unregistered Securities	58

Item 6.	Exhibits	59

Signatures		60