10-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K

(Mark One)

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

For the fiscal year ended December 31, 2023

OR

☐ 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 001-37348

Corbus Pharmaceuticals Holdings, Inc.

(Exact name of Registrant as specified in its Charter)

Delaware	46-4348039
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
500 River Ridge Drive Norwood, Massachusetts	02062
(Address of principal executive offices)	(Zip Code)

Registrant’s telephone number, including area code: (617) 963-0100

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	CRBP	The Nasdaq Capital Market

Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes ☐ No ☒

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes ☐ No ☒

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 the definitions 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 the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. ☐

If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to previously issued financial statements. ☐

Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant’s executive officers during the relevant recovery period pursuant to §240.10D-1(b). ☐

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

As of June 30, 2023, the last business day of the registrant’s most recently completed second fiscal quarter, the aggregate market value of the common stock held by non-affiliates of the registrant was approximately $34,571,068, based on the closing price of the registrant’s common stock on June 30, 2023.

As of March 8, 2024, the number of shares outstanding of the registrant’s common stock, $0.0001 par value per share, was 10,493,108.

Documents incorporated by reference

None.

CORBUS PHARMACEUTICALS HOLDINGS, INC.

ANNUAL REPORT ON FORM 10-K

FOR THE YEAR ENDED DECEMBER 31, 2023

TABLE OF CONTENTS

ITEM		Page
	PART I
1.	Business	4
1A.	Risk Factors	26
1B.	Unresolved Staff Comments	54
1C.	Cybersecurity	54
2.	Properties	54
3.	Legal Proceedings	54
4.	Mine Safety Disclosures	54
	PART II
5.	Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities	55
6.	[Reserved]	55
7.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	56
7A.	Quantitative and Qualitative Disclosures About Market Risk	63
8.	Financial Statements and Supplementary Data	63
9.	Changes in and Disagreements with Accountants on Accounting and Financial Disclosure	63
9A.	Controls and Procedures	64
9B.	Other Information	65
9C.	Disclosure Regarding Foreign Jurisdiction that Prevents Inspections	65
	PART III
10.	Directors, Executive Officers and Corporate Governance	66
11.	Executive Compensation	71
12.	Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters	77
13.	Certain Relationships and Related Transactions, and Director Independence	80
14.	Principal Accountant Fees and Services	81
	PART IV
15.	Exhibits and Financial Statement Schedules	83
16.	Form 10-K Summary	86

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PART I

SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

This report on Form 10-K contains forward-looking statements made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995 under Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Forward-looking statements include statements with respect to our beliefs, plans, objectives, goals, expectations, anticipations, assumptions, estimates, intentions and future performance, and involve known and unknown risks, uncertainties and other factors, which may be beyond our control, and which may cause our actual results, performance or achievements to be materially different from future results, performance or achievements expressed or implied by such forward-looking statements. All statements other than statements of historical fact are statements that could be forward-looking statements. You can identify these forward-looking statements through our use of words such as “may,” “can,” “anticipate,” “assume,” “should,” “indicate,” “would,” “believe,” “contemplate,” “expect,” “seek,” “estimate,” “continue,” “plan,” “point to,” “project,” “predict,” “could,” “intend,” “target,” “potential” and other similar words and expressions of the future.

There are a number of important factors that could cause the actual results to differ materially from those expressed in any forward-looking statement made by us. These factors include, but are not limited to:

•our history of operating losses;

•our current and future capital requirements and our ability to satisfy our capital needs;

•our ability to complete required clinical trials of our product candidates and obtain approval from the FDA or other regulatory agents in different jurisdictions;

•our ability to internally develop new product candidates, intellectual property, and other product candidates we may acquire and/or license;

•our ability to maintain or protect the validity of our patents and other intellectual property;

•our ability to retain key executive members;

•the potential impact of geopolitical events, including the war in Ukraine, and their effects on our operations, including on our clinical development plans and timelines;

•interpretations of current laws and the passages of future laws;

•acceptance of our business model by investors;

•the accuracy of our estimates regarding expenses and capital requirements; and

•our ability to adequately support growth.

The foregoing does not represent an exhaustive list of matters that may be covered by the forward-looking statements contained herein or risk factors that we are faced with that may cause our actual results to differ from those anticipated in our forward-looking statements. Please see “Risk Factors” for additional risks which could adversely impact our business and financial performance.

All forward-looking statements are expressly qualified in their entirety by this cautionary notice. You are cautioned not to place undue reliance on any forward-looking statements, which speak only as of the date of this report or the date of the document incorporated by reference into this report. We have no obligation, and expressly disclaim any obligation, to update, revise or correct any of the forward-looking statements, whether as a result of new information, future events or otherwise. We have expressed our expectations, beliefs and projections in good faith and we believe they have a reasonable basis. However, we cannot assure you that our expectations, beliefs or projections will result or be achieved or accomplished.

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Item 1. BUSINESS

All references in this report to “Corbus,” the “Company,” “we,” “us,” or “our” mean Corbus Pharmaceuticals Holdings, Inc. and its subsidiaries unless we state otherwise, or the context otherwise indicates.

Overview

Corbus Pharmaceuticals Holdings, Inc. (the “Company” or “Corbus”) is a precision oncology company with a diversified portfolio and is committed to helping people defeat serious illness by bringing innovative scientific approaches to well- understood biological pathways. Our pipeline is comprised of two experimental drugs targeting solid tumors: CRB-701, a next-generation antibody drug conjugate (“ADC”) that targets the expression of Nectin-4 on cancer cells to release a cytotoxic payload and CRB-601, an anti-integrin monoclonal antibody that blocks the activation of TGFβ expressed on cancer cells. The pipeline also includes CRB-913, a highly peripherally restricted cannabinoid type-1 (“CB1”) receptor inverse agonist for the treatment of obesity.

Our oncology pipeline:

•CRB-701 is a next-generation ADC targeting the expression of Nectin-4 on cancer cells to release a cytotoxic payload. In February 2023 we obtained a license from CSPC Megalith Biopharmaceutical Co. Ltd ("CSPC"), a subsidiary of CSPC Pharmaceutical Group Limited, to develop and commercialize the drug in the United States ("U.S."), Canada, the European Union (including the European Free Trade Area), the United Kingdom and Australia (the “CSPC License Agreement”). The Investigational New Drug (“IND”) application for CRB-701 was cleared by the U.S. Food and Drug Administration (“FDA”) in 2022 and the drug is currently being investigated by CSPC in a Phase 1 dose-escalation clinical trial in patients with advanced solid tumors in China. On January 26, 2024, we presented data from the Phase 1 dose-escalation trial in China for the first eighteen patients reflective of the first six dose cohorts. The data was presented at ASCO-GU. The emerging clinical data shows that CRB-701 was well-tolerated and demonstrated an overall response rate ("ORR") of 43% and a disease control rate ("DCR") of 71% in the seven patients who received doses predicted to be therapeutically relevant. We are on schedule to bridge data from this Phase 1 clinical trial in China to commence a Phase 1 clinical trial in the U.S. during the first quarter of 2024.

•CRB-601 is a potent and selective anti-αvβ8 monoclonal antibody that blocks the activation of latent TGFβ found on cancer cells. In pre-clinical models, CRB-601 demonstrates enhanced anti-tumor activity when combined with an anti-PD-1 checkpoint inhibitor compared to each single agent on its own. The data suggests that blockade of latent TGFβ production by CRB-601 can lead to changes in immune cell infiltration in the tumor microenvironment thus potentially enhancing the benefit of PD-1 blockade. CRB-601 is being developed as a potential treatment for patients with solid tumors in combination with existing therapies, including checkpoint inhibitors. On January 9, 2024, we announced that the FDA cleared the IND for CRB-601 and we expect to enroll the first patient in a Phase 1 study in the summer of 2024.

Our obesity pipeline:

•CRB-913 is a second-generation highly peripherally restricted CB1 receptor inverse agonist designed to treat obesity. In a diet-induced obesity ("DIO") mouse model, CRB-913 demonstrates a reduction in body weight, body fat content, leptinemia, insulin resistance, liver triglycerides, liver fat deposits, and improvements in liver histology. These outcomes were further improved when CRB-913 was used in combination with incretin analogs (tirzepatide, semaglutide, or liraglutide). We are currently conducting IND enabling studies and we expect to file an IND in the fourth quarter of 2024.

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Our pipeline is as follows:

 

CRB-701

CRB-701 is a novel clinical stage ADC that targets the expression of Nectin-4 on cancer cells to release a cytotoxic payload of monomethyl auristatin E (“MMAE”). In February 2023, we obtained a license from CSPC to develop and commercialize the drug in the U.S., Canada, the European Union (including the European Free Trade Area), the United Kingdom and Australia. The IND for CRB-701 has been cleared by the U.S. FDA and the drug is currently being investigated by CSPC in a Phase 1 dose escalation clinical trial in patients with advanced solid tumors in China. We are on schedule to bridge data from this Phase 1 clinical trial in China to commence a Phase 1 clinical trial in the U.S. during the first quarter of 2024. Additional sites in the United Kingdom and Europe will be added to the program thereafter.

The targeting of Nectin-4 on cancer cells to release the cytotoxic payload MMAE is a clinically validated target as enfortumab vedotin ("EV" or "PADCEV®") has been approved for the treatment of metastatic urothelial cancer ("mUC"). PADCEV® toxicity and safety limitations include serious and potentially life-threatening skin reactions and peripheral neuropathy, which negatively impact tolerability and dose intensity (Figure 1).

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Figure 1: PADCEV® safety limitations

 

CRB-701 is designed to be an improved next-generation site-specific Nectin-4 targeting ADC (Figure 2). The drug benefits from site specific conjugation and novel linker technology to create a stable linker and enable homogeneous payload incorporation with a reproducible drug-to-antibody ration (“DAR”) of 2. The linker technology attaches the MMAE cytotoxic payload to the monoclonal antibody and is designed to hold on to the ADC until it binds to Nectin-4 on the target cell. MMAE is then released upon internalization within the target cell. The targeted delivery of CRB-701 is designed to maximize delivery of MMAE while minimizing toxicity to healthy tissues. CRB-701's longer half-life and lower free plasma payload supports less frequent dosing. The complexity and cost of manufacturing CRB-701 has also been reduced by the drug’s single enzyme and improved linker technology.

Figure 2: CRB-701 Next generation site-specific Nectin-4 targeting ADC

 

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On January 26, 2024, we presented the first clinical data from the ongoing Phase 1 clinical trial of CRB-701 conducted by our development partner, CSPC. The data was presented at ASCO-GU. The Phase 1 dose escalation study is being conducted in China and is enrolling patients with mUC, as well as patients with other solid tumors prospectively confirmed to have Nectin-4 positive tumors. The study opened for enrollment in January 2023 and the data presented is through December 2023 from the first 18 patients reflective of the first 6 dose cohorts (0.2-3.6 mg/kg).

Safety Summary (Figure 3)

•To date, CRB-701 is well tolerated with the majority of treatment related adverse events being grade 1 or 2 and reversible.

•No adverse events above grade 3 were observed.

•There have been no dose discontinuations or reductions in the study to date. A single participant experienced a temporary dose interruption.

•The dose escalation is ongoing at cohort 7 (4.5 mg/kg).

•No cases of drug-related peripheral neuropathy or skin rash have been reported to date.

Figure 3: Safety data

 

PK Summary (Figure 4)

•Single dose PK suggested that TAb, ADC and MMAE increase in a dose proportional manner.

•No obvious accumulation was observed on cycle 3, day 1.

•When compared to the exposures achieved with EV at 1.25 mg/kg Q1W x21 days, CRB-701 (SYS6002) consistently demonstrated lower free MMAE concentrations.

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Figure 4: PK data expressed as a percentage of equivalent PADCEV® dose

 

Efficacy

•Dose level 5 (2.7 mg/kg) and above represents the predicted therapeutically relevant doses based on allometric scaling.

•A mixed tumor population (n=7) receiving doses of 2.7 mg/kg or 3.6 mg/kg demonstrated an ORR of 43% (3 partial responses: 2 unconfirmed responses and 1 non-responding participant with no-Nectin-4 expression) and a DCR of 71% (Figure 5).

•The longest observed response to date is 11 cycles (~10 months) and ongoing (Figure 6).

•All Nectin-4 positive mUC and cervical patients at doses ≥ 2.7 mg/kg that were assessable at the time of the December 2023 data cutoff demonstrated levels of disease control and represent the CRB-701 (SYS6002) responsive population to date.

Figure 5: Efficacy data

 

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Figure 6: Disease responses

 

CRB-601

We are developing CRB-601, a potent and selective anti-αvβ8 integrin mAb for the treatment of solid tumors. We in-licensed the intellectual property for CRB-601 from Dr. Stephen Nishimura’s laboratory at the University of California, San Francisco.

CRB-601 is an anti-αvβ8 monoclonal antibody that blocks the activation of latent TGFβ present on cancer cells in the tumor microenvironment. In pre-clinical models, CRB-601 demonstrates enhanced anti-tumor activity when combined with an anti-PD-1 checkpoint inhibitor compared to either single agent on their own. Pre-clinical data suggests that blockade of latent TGFβ production by CRB-601 can lead to changes in immune cell infiltration in the tumor microenvironment, potentially enhancing the benefit of PD-1 blockade. CRB-601 is being developed as a potential treatment for patients with solid tumors in combination with existing therapies, including checkpoint inhibitors. On January 9, 2024, we announced that the FDA cleared the IND for CRB-601 and we expect to enroll the first patient in a Phase 1 study in the summer of 2024.

TGFβ is a multifunctional cytokine involved in many cellular processes including cell growth and differentiation, immune response, wound healing and tissue repair. In cancer, TGFβ mediates immune evasion and plays a key role in promoting cancer cell growth and metastasis via its immunosuppressive effects in the tumor microenvironment. When overexpressed in the tumor milieu, TGFβ is linked to poor clinical outcomes (Figure 7). Similarly, the avb8 integrin appears to be the only TGFβ activating integrin expressed on regulatory T-cells, highlighting the key contribution of this integrin to immunosuppression. Tumor cells can also evade host immunity by activating TGFb via integrin avb8.

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Figure 7: TGFβ predicts poor clinical outcomes in a subset of cancer patients

 

The αvβ8 integrin is a key regulator of TGFβ that is co-opted in many late-stage metastatic cancers to function as a pro-cancer cytokine. TGFβ is normally stored in the extracellular matrix as an inactive latent pro-protein complex. TGFβ is held in an inactive state in association with latency associate peptide (LAP) and is presented on cell surfaces by latent transforming growth factor β binding proteins (e.g., LTBP1, GARP); these three components comprising the large latent complex ("LLC"). Upon binding of the LAP-TGFβ complex to the αvβ8 integrin, TGFb is released and binds to TGFb receptors triggering a kinase ("SMAD") signaling pathway that leads to a related transcription translation program of TGFb-targeted genes. CRB-601 was specifically designed to bind at the latent TGFβ activation site on αvβ8 (Figure 8), thereby blocking αvβ8-dependent activation.

Figure 8: Targeting the integrin αvβ8 represents a novel approach to regulating TGFβ

 

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CRB-913

CRB-913 is a second-generation highly peripherally restricted CB1 receptor inverse agonist designed to treat obesity. In a DIO mouse model, CRB-913, as a monotherapy and in combination with incretin analogs (tirzepatide, semaglutide, or liraglutide), demonstrates a reduction in body weight in DIO mice and improvements were observed in body fat content, leptinemia, insulin resistance, liver triglycerides, liver fat deposits, and liver histology. We are currently conducting IND enabling studies and we expect to file an IND in the fourth quarter of 2024.

CRB-913 has demonstrated enhanced peripheral restriction versus rimonabant, the first-generation CB1 receptor inverse agonist, in both lean and obese mice (Figure 9).

Figure 9: Marked peripheral restriction vs. rimonabant

 

Even though CRB-913 was designed to be highly peripherally restricted and has significantly lower brain concentration (Figure 10), the drug has equipotent efficacy to rimonabant in weight loss in DIO mice studies (Figure 11).

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Figure 10: Similar weight loss despite markedly lower brain concentrations vs. rimonabant

 

Figure 11: Similar weight loss vs. rimonabant at same daily doses

 

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In DIO mouse models, CRB-913 demonstrates weight loss as a monotherapy and has an enhanced additive effect when combined with the incretin drugs semaglutide or tirzepatide (Figure 12). CRB-913 also demonstrated a significant reduction in body fat content but not in lean mass (Figure 13).

Figure 12: Enhanced combo effect with semaglutide or tirzepatide

 

Figure 13: Demonstrated significant reduction in body fat content but not lean mass

 

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Research and Development

We incurred expenses of approximately $31,168,000 and $16,137,000 for research and development activities for the years ended December 31, 2023 and 2022, respectively. These expenses include cash and non-cash expenses relating to the development of our clinical and pre-clinical programs for our pipeline. Research and development expenses are incurred for the development of our drug candidates and consist primarily of payroll and payments to contract research and development companies. To date, these costs are related to generating pre-clinical data in support of IND filings, the cost of manufacturing and purchasing drug product for clinical trials, and preparation costs for the commencement of clinical trials.

Intellectual Property

Our commercial success depends, in part, on our ability to obtain and maintain patent and other proprietary protection for our technologies, products and processes, including proprietary protection for CRB-701, CRB-601, and CRB-913. All patent expiry terms are stated without taking into account any possible patent term adjustments or extensions and assuming payment of all appropriate maintenance, renewal, annuity and other governmental fees.

CRB-701: Antibody Drug Conjugate Targeting Nectin-4

We entered into the CSPC License Agreement effective February 12, 2023. Pursuant to the CSPC License Agreement, we received an exclusive license to CRB-701 for the prevention and treatment of all oncology indications in the U.S., Canada, the European Union (including the European Free Trade Area), the United Kingdom, and Australia. The license includes several patent applications covering CRB-701, or a use of CRB-701, that, if granted, are projected to expire in 2042 and 2045.

CRB-601: Anti-Integrin Monoclonal Antibody

We entered into a license agreement (the “UCSF License Agreement”) with the Regents of the University of California (“The Regents”) effective May 26, 2021, as amended to include additional inventions effective November 17, 2022, and further amended to include certain new technology rights effective August 14, 2023. Pursuant to the UCSF License Agreement, we received an exclusive worldwide license to certain patent applications relating to humanized antibodies against integrin αvβ8, an antibody for diagnostic use, along with non-exclusive licenses to certain related know-how and materials. The last of the licensed patent applications, if granted, is projected to expire in 2043. As of December 31, 2023, we own a provisional patent application covering CRB-601. Any U.S. or foreign patents issued from non-provisional patent applications we may file in connection with our provisional patent application would be scheduled to expire in 2044.

CRB-913: Second Generation CB1 Receptor Inverse Agonist

On September 20, 2018, we entered into an exclusive license agreement with Jenrin Discovery, LLC which provides us with an exclusive worldwide license to develop and market cannabinoid compounds covered by the Jenrin issued patents and patent applications that cover the composition and method of use of selective cannabinoid receptor modulators. The Jenrin intellectual property portfolio includes eight granted U.S. patents and nine granted patents outside of the U.S. The portfolio includes U.S. Patent No. 8,853,252 which granted with claims relating to the cannabinoid receptor blocker CRB-913 and methods of using the same for treating obesity, diabetes, hepatic disorders, and/or cardiometabolic disorders. The licensed intellectual property portfolio provides intellectual property protection in the U.S. for CRB-913 and these uses through November 2028. We own a patent application covering CRB-913 that can result in patent rights projected to expire in 2043.

Other Intellectual Property Matters

Our commercial success depends, in part, on our ability to obtain and maintain patent and other proprietary protection for our technologies and to operate without infringing the proprietary right of others and to prevent others from infringing our proprietary rights. We strive to protect our intellectual property through a combination of patents and trademarks as well as through the confidentiality provisions in our contracts. With respect to our candidates, we endeavor to obtain and maintain patent protection in the U.S. and internationally on all patentable aspects of each product candidate. We cannot be sure that the patents will be granted with respect to any patent applications we may own or license in the future, nor can we be sure that any patents issued or licensed to us in the future will be useful in protecting our technology. For this and more comprehensive risks related to our intellectual property, please see “Risk Factors—Risks Relating to Our Intellectual Property Rights.”

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In addition to patent protection, we rely on trade secrets and know-how to develop and maintain our competitive position. For example, aspects of our proprietary technology platform are based on unpatented trade secrets and know-how related to the manufacturing of our product candidates. Trade secrets and know-how can be difficult to protect. We seek to protect our proprietary technology and processes, in part, by confidentiality agreements and invention assignment agreements with our employees, consultants, scientific advisors, contractors and commercial partners. These agreements are designed to protect our proprietary information and, in the case of the invention assignment agreements, to grant us ownership of technologies that are developed through a relationship with a third party. We also seek to preserve the integrity and confidentiality of our data and trade secrets by maintaining physical security of our premises and physical and electronic security of our information technology systems. While we have confidence in these individuals, organizations and systems, agreements or security measures may be breached, and we may not have adequate remedies for any breach. In addition, our trade secrets may otherwise become known or be independently discovered by competitors. To the extent that our contractors use intellectual property owned by others in their work for us, disputes may arise as to the rights in related or resulting know-how and inventions.

We also seek and will continue to seek trademark protection in the U.S. and outside of the U.S. where available and when appropriate. We use and intend to use these registered marks in connection with our pharmaceutical research and development as well as our product candidates.

Manufacturing and Supply of CRB-701, CRB-601, and CRB-913

We do not own or operate manufacturing facilities and rely on third-party contract manufacturing organizations or licensing partners to supply us with drugs for pre-clinical and clinical studies and commercial activities. If a manufacturer or licensing partner is unable to supply us with drugs in a timely manner, we may encounter substantial delays in commencement, enrollment, or completion of our clinical trials or an inability to successfully commercialize any product candidates we may develop. If we are unable to advance our product candidates into and through clinical development, obtain regulatory approval and ultimately commercialize our product candidates, or experience significant delays in doing so, our business will be materially harmed.

CRB-701 is designed to be an improved next generation site-specific Nectin-4 targeting antibody drug conjugate. CRB-701 is a monoclonal antibody attached to an MMAE cytotoxic payload using a proprietary linker technology. CSPC has developed a manufacturing process under current good manufacturing practice (“cGMP”) to produce batches of drug substance and drug product for pre-clinical and clinical studies. We have a clinical supply agreement with CSPC to supply drug substance and drug product in support of clinical activities and we will seek to negotiate a commercial supply agreement with CSPC prior to a marketing application.

CRB-601 is a monoclonal antibody and we have developed a manufacturing process under cGMP to produce batches of drug substance and drug product for pre-clinical and clinical studies. CRB-601 is produced by a contract manufacturer through recombinant DNA technology utilizing genetically engineered host cells, upstream cell culture processes and downstream purification methods as required to manufacture the drug substance for use in the manufacture of the drug product.

CRB-913 is a second-generation CB1 receptor inverse agonist and we are developing manufacturing processes with a contract manufacturer under cGMP to produce batches of drug substance and drug product for pre-clinical and IND-enabling studies.

Competition

The biotechnology and pharmaceutical industries are characterized by a rapid pace of new innovation and discoveries, fierce competition and strong defense of intellectual property. We face competition from major pharmaceutical and biotechnology companies, academic institutions, governmental agencies, and public and private research institutions, among others.

Competitors to CRB-701 who are targeting Nectin-4 include Pfizer, Eli Lilly, Bicycle Therapeutics, Mabwell and Adcentrx Therapeutics, in addition to Pfizer and its approved PADCEV product. Competitors to CRB-601 who are also targeting the latent TGFβ pathway in cancer include AbbVie, Pfizer, Argenx, Morphic, Pliant and Scholar Rock. Competitors to CRB-913 who are also targeting obesity include AstraZeneca, Eli Lilly, Novo Nordisk, Amgen, and Pfizer.

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Regulatory Matters

Government Regulation

Our activities and products are significantly regulated by a number of governmental entities, including the U.S. Food and Drug Administration, or FDA, in the U.S. and by comparable authorities in other countries. These entities regulate, among other things, the design, research, pre-clinical and clinical development, testing, manufacturing, storage, distribution, import, export, labeling, advertising and marketing of pharmaceutical products and devices. We must obtain regulatory approval from the FDA and comparable authorities in other countries, as applicable, for our drug candidates before we can commercialize such drugs in the U.S. and foreign jurisdictions. Generally, before a new drug can be sold, considerable data demonstrating its quality, safety and efficacy must be obtained, organized into a format specific to each regulatory authority, submitted for review and approved by the regulatory authority. The data are often generated in two distinct development states: pre-clinical and clinical. Product development within this regulatory framework takes a number of years and involves the expenditure of substantial resources. Many drug candidates that initially appear promising ultimately do not reach the market because they are found to be unsafe or ineffective when tested. Our inability to commercialize a product would impair our ability to earn future revenues.

The process of obtaining regulatory approvals and the subsequent compliance with appropriate federal, state, local and foreign statutes and regulations require the expenditure of substantial time and financial resources. Failure to comply with the applicable requirements at any time during the product development process, approval process or after approval may subject an applicant to administrative or judicial sanctions. These sanctions could include the FDA’s refusal to approve pending applications, withdrawal of an approval, a clinical hold, warning letters, product recalls or withdrawals from the market, product seizures, total or partial suspension of production or distribution, injunctions, fines, refusals of government contracts, restitution, disgorgement, or civil or criminal penalties. Any agency or judicial enforcement action could have a material adverse effect on us.

Development of Drugs in the U.S.

FDA Approval Process

In the U.S., the FDA regulates drugs and biological products under the Federal Food, Drug, and Cosmetic Act, or FDCA, the Public Health Service Act, or PHSA, and implementing regulations. CRB-701 and CRB-601 are regulated as biologics; and CRB-913 is regulated as a drug. The process of obtaining regulatory approvals and the subsequent compliance with appropriate federal, state, local and foreign statutes and regulations requires the expenditure of substantial time and financial resources. Failure to comply with the applicable U.S. requirements at any time during the product development process, approval process or after approval may subject an applicant to a variety of administrative or judicial sanctions, such as the FDA’s refusal to approve pending applications, withdrawal of an approval, imposition of a clinical hold, issuance of untitled or warning letters, product recalls, product seizures, total or partial suspension of production or distribution injunctions, fines, refusals of government contracts, restitution, disgorgement of profits, civil penalties and criminal prosecution.

The process required by the FDA before a drug or biological product may be marketed in the U.S. generally involves the following:

•completion of preclinical studies and formulation studies in compliance with the FDA’s good laboratory practice, or GLP, regulations;

•submission to the FDA of an investigational new drug, or IND, application which must become effective before human clinical trials may begin;

•approval by an independent institutional review board, or IRB, at each clinical site before each trial may be initiated;

•performance of adequate and well-controlled human clinical trials in accordance with good clinical practices, or GCP, to establish the safety and efficacy of the proposed drug or biological product for each indication;

•submission to the FDA of a new drug application, or NDA, or a biologics license application, or BLA, as applicable;

•satisfactory completion of an FDA advisory committee review, if applicable;

•satisfactory completion of an FDA inspection of the manufacturing facility or facilities at which the product is produced to assess compliance with cGMP requirements and to assure that the facilities, methods and controls are adequate to preserve the drug’s identity, strength, quality and purity; and

•FDA review and approval of the NDA or BLA.

Data obtained at any stage of testing is susceptible to varying interpretations, which could delay, limit or prevent regulatory approval. Moreover, during the regulatory process, new or changed drug approval policies may cause unanticipated delays or

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rejection of our product. We may not obtain necessary regulatory approvals within a reasonable period of time, if at all, or avoid delays or other problems in testing our products. Moreover, even if we received regulatory approval for a product, the approval may require limitations on use, which could restrict the size of the potential market for the product.

Clinical Trials

The FDA provides that human clinical trials may begin 30 days after receipt and review of an IND application, unless the FDA requests additional information or changes to the study protocol within that period. An IND must be sponsored and filed for each of our proposed drug candidates. Authorization to conduct clinical trials in no way assures that the FDA will ultimately approve the product. Clinical trials are generally conducted in three sequential phases that may overlap. In a Phase 1 trial, the product is given to a small number of patients to test for safety (adverse effects), determine a recommended Phase 2 dose(s) and evaluate any signals of efficacy. Phase 2 trials are conducted on a limited group of the target patient population; safety, optimal dosage and efficacy are studied. A Phase 3 trial is performed in a large patient population, generally over a wide geographic area, to provide evidence for the safety and efficacy of the product. The FDA maintains and exercises oversight authority throughout the clinical trial process.

The clinical stage of development can generally be divided into three sequential phases that may overlap: Phase 1, Phase 2, and Phase 3 clinical trials. In Phase 1, generally, small numbers of healthy volunteers are initially exposed to single escalating doses and then multiple escalating doses of the product candidate. The primary purpose of these studies is to assess the metabolism, pharmacologic action and general safety of the drug. Phase 2 trials typically involve studies in disease-affected patients to determine the dose required to produce the desired benefits, common short-term side effects and risks. Phase 2 studies are typically well-controlled, closely monitored, and conducted in a relatively small number of patients, usually involving no more than several hundred subjects. Phase 3 trials are intended to gather the additional information about effectiveness and safety that is needed to evaluate the overall benefit-risk relationship of the drug and to provide an adequate basis for physician labeling. Phase 3 studies usually include from several hundred to several thousand subjects and are closely controlled and monitored. In addition to these Phase 1-3 trials, other trials may be conducted to gather additional safety, pharmacokinetic and pharmacodynamic information. Pharmaceutical products with active ingredients equal or similar to those already approved by the FDA often have more streamlined development programs than compounds entirely new to the agency, often skipping Phase 1 and 2 trials.

A clinical plan must be submitted to the FDA prior to commencement of a clinical trial. If the FDA has concerns about the clinical plan or the safety of the proposed studies, they may suspend or terminate the study at any time. Studies must be conducted in accordance with good clinical practice and reporting of study progress and any adverse experiences is required. Studies are also subject to review by independent institutional review boards responsible for overseeing studies at particular sites and protecting human research study subjects. An independent institutional review board may also suspend or terminate a study once initiated. Accordingly, we cannot be sure that submission of an IND will result in the FDA allowing clinical trials to begin, or that once begun, issues will not arise that could cause the trial to be suspended or terminated.

Post-approval studies, sometimes referred to as Phase 4 clinical trials, may be conducted after initial marketing approval. Sometimes, these studies are used to gain additional experience from the treatment of patients in the intended therapeutic condition. In certain instances, the FDA may mandate the performance of Phase 4 studies. In other situations, post-approval studies aim to gain additional indications for a medication or develop new dosage forms for a medication.

A product’s safety and effectiveness in one clinical trial is not necessarily indicative of its safety and effectiveness in another clinical trial. Moreover, we may not discover all potential problems with a product even after completing clinical trials on it. Some of our products and technologies have undergone only preclinical testing. As a result, we do not know whether they are safe or effective for humans. Also, regulatory authorities may decide, contrary to our findings, that a product is unsafe or not as effective in actual use as its clinical trial results indicated. This could prevent the product’s widespread use, require its withdrawal from the market or expose us to liability. The FDA or the sponsor may suspend or terminate a clinical trial at any time on various grounds, including a finding that the patients are being exposed to an unacceptable health risk. Similarly, an IRB can suspend or terminate approval of a clinical trial at its institution if the clinical trial is not being conducted in accordance with the IRB’s requirements or if the drug has been associated with unexpected serious harm to patients. Any such action could materially harm us. Clinical trials are critical to the success of our products but are subject to unforeseen and uncontrollable delay, including delay in enrollment of patients. Any delay in clinical trials could delay our commercialization of a product.

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Disclosure of Clinical Trial Information

Sponsors of clinical trials of FDA-regulated products, including biological products, are required to register and disclose certain clinical trial information on the website www.clinicaltrials.gov. Information related to the product, patient population, phase of investigation, trial sites and investigators, and other aspects of a clinical trial are then made public as part of the registration. Sponsors are also obligated to disclose the results of their clinical trials after completion. Disclosure of the results of clinical trials can be delayed in certain circumstances for up to two years after the date of completion of the trial. Competitors may use this publicly available information to gain knowledge regarding the progress of clinical development programs as well as clinical trial design.

Special Protocol Assessment

The Federal Food, Drug, and Cosmetic Act directs the FDA to meet with sponsors, pursuant to a sponsor’s written request, for the purpose of reaching agreement on the design and size of clinical trials intended to form the primary basis of an efficacy claim in a New Drug Application (NDA) or a Biologic Licensing Application (BLA). If an agreement is reached, the FDA will reduce the agreement to writing and make it part of the administrative record. This agreement is called a special protocol assessment (SPA). While the FDA’s guidance on SPAs states that documented SPAs should be considered binding on the review division, the FDA has latitude to change its assessment if certain exceptions apply. Exceptions include public health concerns emerging that were unrecognized at the time of the protocol assessment, identification of a substantial scientific issue essential to the safety or efficacy testing that later comes to light, a sponsor’s failure to follow the protocol agreed upon, or the FDA’s reliance on data, assumptions or information that are determined to be wrong.

Chemistry, Controls and Manufacturing Development

Concurrent with clinical trials, companies typically complete additional animal and laboratory studies, develop additional information about the chemistry and physical characteristics of the drug, and finalize a process for manufacturing the product in commercial quantities in accordance with FDA’s current cGMP requirements. The manufacturing process must consistently produce quality batches of the drug, and, among other things, the manufacturer must develop methods for testing the identity, strength, quality and purity of the final drug. In addition, appropriate packaging must be selected and tested, and stability studies must be conducted to demonstrate the effectiveness of the packaging and that the compound does not undergo unacceptable deterioration over its shelf life.

Review and Approval in the U.S.

Following pivotal or Phase 3 trial completion, data are analyzed to determine safety and efficacy. Data are then filed with the FDA in an NDA or BLA, along with proposed labeling for the product and information about the manufacturing and testing processes and facilities that will be used to ensure product quality. In the U.S., FDA approval of an NDA or BLA must be obtained before marketing a pharmaceutical product. The NDA or BLA must contain proof of safety, purity, potency, and efficacy, which entails extensive pre-clinical and clinical testing.

The FDA will likely re-analyze the clinical trial data, which could result in extensive discussions between the FDA and us during the review process. The review and evaluation of applications by the FDA is extensive and time consuming and may take several years to complete. The FDA may conduct a pre-approval inspection of the manufacturing facilities for the new product to determine whether they comply with current good manufacturing practice requirements and may also audit data from clinical and pre-clinical trials.

There is no assurance that the FDA will act favorably or quickly in making such reviews and significant difficulties or costs may be encountered in our efforts to obtain FDA approvals. The FDA may require that certain contraindications, warnings or precautions be included in the product labeling, or may condition the approval of the NDA or BLA on other changes to the proposed labeling, development of adequate controls and specifications, or a commitment to conduct post-marketing testing or clinical trials and surveillance programs to monitor the safety of approved products that have been commercialized. Further, the FDA may place conditions on approvals including the requirement for a risk evaluation and mitigation strategy, or REMS, to assure the safe use of the drug. If the FDA concludes a REMS is needed, the sponsor of the NDA or BLA must submit a proposed REMS; the FDA will not approve the NDA or BLA without an approved REMS, if required. A REMS could include medication guides, physician communication plans, or elements to assure safe use, such as restricted distribution methods, patient registries and other risk minimization tools. Any of these limitations on approval or marketing could restrict the commercial promotion, distribution, prescription or dispensing of products. Product approvals may be withdrawn for non-compliance with regulatory standards or if problems occur.

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Biologics Exclusivity and Biosimilars

The Biologics Price Competition and Innovation Act of 2009 ("BPCIA") created an abbreviated approval pathway for biological products shown to be highly similar to, or interchangeable with, an FDA-licensed reference biological product. The FDA has issued several guidance documents outlining an approach to review and approval of biosimilars.

Biosimilarity, which requires that there be no clinically meaningful differences between the biological product and the reference product in terms of safety, purity, and potency, can be shown through analytical studies, animal studies, and a clinical study or studies. Interchangeability requires that a product is biosimilar to the reference product and the product must demonstrate that it can be expected to produce the same clinical results as the reference product in any given patient and, for products that are administered multiple times to an individual, the biologic and the reference biologic may be alternated or switched after one has been previously administered without increasing safety risks or risks of diminished efficacy relative to exclusive use of the reference biologic.

The BPCIA includes, among other provisions:

•a 12-year exclusivity period from the date of first licensure, or BLA approval, of the reference product, during which approval of a 351(k) application referencing that product may not be made effective;

•a four-year exclusivity period from the date of first licensure of the reference product, during which a 351(k) application referencing that product may not be submitted;

•and an exclusivity period for certain biological products that have been approved through the 351(k) pathway as interchangeable biosimilars.

•The BPCIA also establishes procedures for identifying and resolving patent disputes involving applications submitted under section 351(k) of the PHSA.

The BPCIA is complex and its interpretation and implementation by the FDA remains unpredictable. In addition, government proposals have sought to reduce the 12-year reference product exclusivity period. Other aspects of the BPCIA, some of which may impact the BPCIA exclusivity provisions, have also been the subject of recent litigation. As a result, the ultimate effect, implementation, and meaning of the BPCIA is subject to uncertainty.

Orphan Drug Designation

Under the Orphan Drug Act, the FDA may grant orphan drug designation to a drug intended to treat a rare disease or condition, which is generally a disease or condition that affects fewer than 200,000 individuals in the U.S. Orphan product designation must be requested before submitting an NDA or BLA. After the FDA grants orphan drug designation, the identity of the therapeutic agent and its potential orphan use are disclosed publicly by the FDA. Orphan product designation does not convey any advantage in or shorten the duration of regulatory review and approval process. In addition to the potential period of exclusivity, orphan designation makes a company eligible for grant funding of up to $400,000 per year for four years to defray costs of clinical trial expenses, tax credits for clinical research expenses and potential exemption from the FDA application user fee.

If a product that has orphan designation subsequently receives the first FDA approval for the disease or condition for which it has such designation, the product is entitled to orphan drug exclusivity, which means the FDA may not approve any other applications to market the same drug for the same indication for seven years, except in limited circumstances, such as (i) the drug’s orphan designation is revoked; (ii) its marketing approval is withdrawn; (iii) the orphan exclusivity holder consents to the approval of another applicant’s product; (iv) the orphan exclusivity holder is unable to assure the availability of a sufficient quantity of drug; or (v) a showing of clinical superiority to the product with orphan exclusivity by a competitor product. If a drug designated as an orphan product receives marketing approval for an indication broader than what is designated, it may not be entitled to orphan drug exclusivity. There can be no assurance that we will receive orphan drug designation for our products.

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Special Regulatory Procedures

Fast track designation — The FDA is required to facilitate the development and expedite the review of drugs and biologics that are intended for the treatment of a serious or life-threatening disease or condition and that demonstrate the potential to address unmet medical needs. Under the fast track program, the sponsor of a new drug or biologic candidate may request the FDA to designate the product for a specific indication as a fast track product, concurrent with or after the filing of the IND for the drug candidate. A drug that receives fast track designation is eligible for some or all of the following: (i) more frequent meetings with the FDA to discuss the drug’s development plan and ensure collection of appropriate data needed to support drug approval; (ii) more frequent written communication from the FDA about such things as the design of the proposed clinical trials and use of biomarkers; (iii) eligibility for accelerated approval and priority review, if relevant criteria are met; and (iv) “Rolling Review,” which means that a drug company can submit completed sections of its BLA or NDA for review by the FDA, rather than waiting until every section of the NDA or BLA is completed before the entire application can be reviewed. This rolling review is available if the applicant provides and the FDA approves a schedule for the submission of the remaining information and the applicant pays applicable user fees. However, the FDA’s time period goal for reviewing a fast track application does not begin until the last section of the NDA or BLA is submitted. In addition, the fast track designation may be withdrawn by the FDA if it believes that the designation is no longer supported by data emerging in the clinical trial process.

Priority review — Under FDA policies, a drug candidate may be eligible for priority review. The priority review program provides for expedited review or an NDA or BLA, typically within a six to eight month time frame from the time a complete application is accepted for filing. Products regulated by the FDA’s Center for Drug Evaluation and Research, or CDER, are eligible for priority review if they provide a significant improvement compared to marketed products in the treatment, diagnosis or prevention of a disease. Products regulated by the FDA’s Center for Biologics Evaluation and Research, or CBER, are eligible for priority review if they provide a significant improvement in the safety or effectiveness of the treatment, diagnosis or prevention of a serious or life-threatening disease. A fast track designated drug candidate could be eligible for priority review if supported by clinical data at the time of the BLA or NDA submission.

Accelerated approval — Under the law and the FDA’s accelerated approval regulations, the FDA may approve a drug or biologic for a serious or life-threatening illness that provides meaningful therapeutic benefit to patients over existing treatments based on a surrogate endpoint that is reasonably likely to predict clinical benefit. Surrogate endpoints can often be measured more easily or more rapidly than clinical endpoints. A drug candidate approved on this basis is subject to rigorous post-marketing compliance requirements, including the completion of Phase 4 or post-approval clinical trials to confirm the effect on the clinical endpoint. Failure to conduct required post-approval studies, or confirm a clinical benefit during post-marketing studies, would allow the FDA to withdraw the drug from the market on an expedited basis. All promotional materials for drug candidates approved under accelerated regulations are subject to prior review by the FDA.

Breakthrough therapy designation — The FDA is also required to expedite the development and review of the application for approval of drugs that are intended to treat a serious or life-threatening disease or condition where preliminary clinical evidence indicates that the drug candidate may demonstrate substantial improvement over existing therapies on one or more clinically significant endpoints. Under the breakthrough therapy program, the sponsor of a new drug candidate may request that the FDA designate the drug candidate for a specific indication as a breakthrough therapy concurrent with, or after, the filing of the IND for the drug candidate.

Pediatric Information

Under the Pediatric Research Equity Act of 2003, an NDA, BLA or supplement to an NDA or BLA must contain data that are adequate to assess the safety and effectiveness of the drug or biological product for the claimed indications in all relevant pediatric subpopulations, and to support dosing and administration for each pediatric subpopulation for which the product is safe and effective. The FDA may, on its own initiative or at the request of the applicant, grant deferrals for submission of some or all pediatric data until after approval of the product for use in adults, or full or partial waivers from the pediatric data requirements. Under the Food and Drug Administration Safety and Innovation Act, or FDASIA, the FDA has additional authority to take action against manufacturers not adhering to pediatric study requirements. Unless otherwise required by regulation, the pediatric data requirements do not apply to products with orphan drug designation.

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U.S. Patent Term Restoration

Depending upon the timing, duration, and specifics of the FDA approval of the use of our current and potential product candidates, some of our U.S. patents may be eligible for limited patent term extension under the Drug Price Competition and Patent Term Restoration Act of 1984 ("Hatch-Waxman Amendments"). The Hatch-Waxman Amendments permit a patent restoration term of up to five years as compensation for patent term lost during product development and the FDA regulatory review process. However, patent term restoration cannot extend the remaining term of a patent beyond a total of 14 years from the product’s approval date. The patent term restoration period is generally one-half the time between the effective date of an IND and the submission date of an NDA or BLA plus the time between the submission date of the NDA or BLA and the approval of that application. Only one patent applicable to an approved biological product is eligible for the extension and the application for the extension must be submitted prior to the expiration of the patent. The U.S. Patent and Trademark Office, in consultation with the FDA, reviews and approves the application for any patent term extension or restoration.

Drug Development in Europe

In the European Union, our future products may also be subject to extensive regulatory requirements. Similar to the U.S., the marketing of medicinal products is subject to the granting of marketing authorizations by regulatory agencies. Also, as in the U.S., the various phases of pre-clinical and clinical research in the European Union are subject to significant regulatory controls.

Review and Approval in the European Union

In the European Union, approval of new medicinal products can be obtained through one of three processes: the mutual recognition procedure, the centralized procedure, and the decentralized procedure. We intend to determine which process we will follow, if any, in the future.

Mutual Recognition Procedure — An applicant submits an application in one European Union member state, known as the reference member state. Once the reference member state has granted the marketing authorization, the applicant may choose to submit applications in other concerned member states, requesting them to mutually recognize the marketing authorizations already granted. Under this mutual recognition process, authorities in other concerned member states have 55 days to raise objections, which must then be resolved by discussion among the concerned member states, the reference member state and the applicant within 90 days of the commencement of the mutual recognition procedure. If any disagreement remains, all considerations by authorities in the concerned member states are suspended and the disagreement is resolved through an arbitration process. The mutual recognition procedure results in separate national marketing authorizations in the reference member state.

Centralized Procedure — This procedure is currently mandatory for products developed by means of a biotechnological process and optional for new active substances and other “innovative medicinal products with novel characteristics.” Under this procedure, an application is submitted to the European Agency for the Evaluation of Medical Products. Two European Union member states are appointed to conduct an initial evaluation of each application. These countries each prepare an assessment report that is then used as the basis of a scientific opinion of the Committee on Proprietary Medical Products. If this opinion is favorable, it is sent to the European Commission, which drafts a decision. After consulting with the member states, the European Commission adopts a decision and grants a marketing authorization, which is valid throughout the European Union and confers the same rights and obligations in each of the member states as a marketing authorization granted by that member state.

Decentralized Procedure — The most recently introduced of the three processes for obtaining approval of new medicinal processes in the European Union, the decentralized procedure is similar to the mutual recognition procedure described above, but with differences in the timing that key documents are provided to concerned member states by the reference member state, the overall timing of the procedure and the possibility of, among other things, “clock stops” during the procedure.

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Post-Marketing Requirements

Following approval of a new product, a pharmaceutical company and the approved product are subject to continuing regulation by the FDA and other federal and state regulatory authorities, including, among other things, monitoring and recordkeeping activities, reporting to applicable regulatory authorities of adverse experiences with the product, providing the regulatory authorities with updated safety and efficacy information, product sampling and distribution requirements, and complying with promotion and advertising requirements, which include, among others, standards for direct-to-consumer advertising, restrictions on promoting drugs for uses or in patient populations not described in the drug’s approved labeling (known as “off-label use”), and limitations on industry-sponsored scientific and educational activities. Although physicians may prescribe legally available drugs for off-label uses, manufacturers may not market or promote such off-label uses. Modifications or enhancements to the products or labeling or changes of site of manufacture are often subject to the approval of the FDA and other regulators, which may or may not be received or may result in a lengthy review process. The FDA regulations require the products be manufactured in specific approved facilities and in accordance with current good manufacturing practices, and NDA and BLA holders must list their products and register their manufacturing establishments with the FDA. These regulations also impose certain organizational, procedural and documentation requirements with respect to manufacturing and quality assurance activities. Drug manufacturers and other entities involved in the manufacture and distribution of approved drugs are subject to periodic unannounced inspections by the FDA and certain state agencies for compliance with current good manufacturing practice and other laws. NDA and BLA holders using contract manufacturers, laboratories or packagers are responsible for the selection and monitoring of qualified firms. These firms are subject to inspections by the FDA at any time, and the discovery of violative conditions could result in enforcement actions that interrupt the operation of any such facilities or the ability to distribute products manufactured, processed or tested by them.

Other Regulatory Matters

Manufacturing, sales, promotion and other activities following product approval are also subject to regulation by numerous regulatory authorities in addition to the FDA, including, in the U.S., the Centers for Medicare & Medicaid Services, or CMS, other divisions of the Department of Health and Human Services, the Drug Enforcement Administration, the Consumer Product Safety Commission, the Federal Trade Commission, the Occupational Safety & Health Administration, the Environmental Protection Agency, and state and local governments. These regulations include:

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•the federal healthcare program anti-kickback law which prohibits, among other things, persons from soliciting, receiving or providing remuneration, directly or indirectly, to induce either the referral of an individual, for an item or service or the purchasing or ordering of a good or service, for which payment may be made under federal healthcare programs such as the Medicare and Medicaid programs;

•federal false claims laws which prohibit, among other things, individuals or entities from knowingly presenting, or causing to be presented, claims for payment from Medicare, Medicaid, or other government reimbursement programs that are false or fraudulent. The government may assert that a claim including items or services resulting from a violation of the federal healthcare program anti-kickback law or related to off-label promotion constitutes a false or fraudulent claim for purposes of the federal false claims laws;

•the Federal Physician Payments Sunshine Act within the ACA, and its implementing regulations, require that certain manufacturers of drugs, devices, biological and medical supplies for which payment is available under Medicare, Medicaid or the Children’s Health Insurance Program (with certain exceptions) to report information related to certain payments or other transfers of value made or distributed to physicians and teaching hospitals, or to entities or individuals at the request of, or designated on behalf of, the physicians and teaching hospitals and to report annually certain ownership and investment interests held by physicians and their immediate family members; and

•the Health Insurance Portability and Accountability Act, or HIPAA, as amended by the Health Information Technology for Economic and Clinical Health Act, or HITECH, and its implementing regulations, imposes certain requirements relating to the privacy, security and transmission of individually identifiable health information. Among other things, HITECH makes HIPAA’s privacy and security standards directly applicable to “business associates”—independent contractors or agents of covered entities that receive or obtain protected health information in connection with providing a service on behalf of a covered entity. HITECH also created four new tiers of civil monetary penalties, amended HIPAA to make civil and criminal penalties directly applicable to business associates and possibly other persons, and gave state attorneys general new authority to file civil actions for damages or injunctions in federal courts to enforce the federal HIPAA laws and seek attorneys’ fees and costs associated with pursuing federal civil actions.

•applicable child-resistant packaging requirements under the U.S. Poison Prevention Packaging Act.

•The Lanham Act and federal antitrust laws.

•state law equivalents of each of the above federal laws, such as anti-kickback and false claims laws, which may apply to items or services reimbursed by any third-party payer, including commercial insurers, and state 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 federal laws, thus complicating compliance efforts.

Distribution of pharmaceutical products is subject to additional requirements and regulations, including extensive record-keeping, licensing, traceability, and storage and security requirements intended to prevent the unauthorized sale of pharmaceutical products. Moreover, some pharmaceutical products may be classified as controlled substances and the handling of any controlled substances must comply with the U.S. Controlled Substances Act and the Controlled Substances Import and Export Act.

Individual states have also established controlled substance laws and regulations. Though state-controlled substances laws often mirror federal law because the states are separate jurisdictions, they may separately schedule drugs, as well. While some states automatically schedule a drug based on federal action, other states schedule drugs through rulemaking or a legislative action. The requirement for state registrations could also result in delay of the manufacturing, distribution of our drugs or in the completion of our current clinical studies. We and our manufacturing vendors and clinical sites must also obtain separate state registrations, permits or licenses to be able to obtain, handle, and distribute controlled substances for clinical trials or commercial sale, and failure to meet applicable regulatory requirements could lead to enforcement and sanctions by the states in addition to those from the DEA or otherwise arising under federal law.

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Third-Party Payer Coverage and Reimbursement

Significant uncertainty exists as to the coverage and reimbursement status of any of our drug candidates that ultimately may obtain regulatory approval. In both the U.S. and foreign markets, our ability to commercialize our product candidates successfully, and to attract commercialization partners for our product candidates, depends in significant part on the availability of adequate financial coverage and reimbursement from third-party payers, including, in the U.S., governmental payers such as the Medicare and Medicaid programs, managed care organizations, and private health insurers. Medicare is a federally funded program managed by the CMS, through local fiscal intermediaries and carriers that administer coverage and reimbursement for certain healthcare items and services furnished to the elderly and disabled. Medicaid is an insurance program for certain categories of patients whose income and assets fall below state defined levels and who are otherwise uninsured that is both federally and state funded and managed by each state. The federal government sets general guidelines for Medicaid and each state creates specific regulations that govern its individual program. Each payer has its own process and standards for determining whether it will cover and reimburse a procedure or particular product. Private payers often rely on the lead of the governmental payers in rendering coverage and reimbursement determinations. Therefore, achieving favorable CMS coverage and reimbursement is usually a significant gating issue for successful introduction of a new product. The competitive position of some of our products will depend, in part, upon the extent of coverage and adequate reimbursement for such products and for the procedures in which such products are used. Prices at which we or our customers seek reimbursement for our product candidates can be subject to challenge, reduction or denial by the government and other payers.

The U.S. Congress and state legislatures may, from time to time, propose and adopt initiatives aimed at cost containment, which could impact our ability to sell our product candidates profitably. For example, the two-year spending law signed by the President of U.S. on February 9, 2018 includes a provision raising the manufacturer discount to 70% in 2019 in the Medicare Part D coverage gap, also known as the “donut hole.” Under prior law, manufacturers were required to provide a 50% discount on prescription drugs purchased in the donut hole. Manufacturers of branded drugs will face much higher liabilities from donut hole payments beginning in 2019, estimated at multiple billions of dollars for some of the largest companies.

The cost of pharmaceuticals continues to generate substantial governmental and third-party payer interest. We expect that the pharmaceutical industry will experience pricing pressures due to the trend toward managed healthcare, the increasing influence of managed care organizations and additional legislative proposals. Our results of operations could be adversely affected by current and future healthcare reforms.

Some third-party payers also require pre-approval of coverage for new or innovative devices or drug therapies before they will reimburse healthcare providers that use such therapies. While we cannot predict whether any proposed cost-containment measures will be adopted or otherwise implemented in the future, the announcement or adoption of these proposals could have a material adverse effect on our ability to obtain adequate prices for our product candidates and operate profitably.

In addition, in some foreign countries, the proposed pricing for a drug must be approved before it may be lawfully marketed. The requirements governing drug pricing vary widely from country to country. For example, the European Union provides options for its member states to restrict the range of medicinal products for which their national health insurance systems provide reimbursement and to control the prices of medicinal products for human use. A member state may approve a specific price for the medicinal product, or it may instead adopt a system of direct or indirect controls on the profitability of the company placing the medicinal product on the market. There can be no assurance that any country that has price controls or reimbursement limitations for pharmaceutical products will allow favorable reimbursement and pricing arrangements for any of our products. Historically, products launched in the European Union do not follow price structures of the U.S. and generally tend to be significantly lower.

Employees

We had 19 full-time employees at December 31, 2023. All our employees are engaged in administration, finance, clinical, biology, and manufacturing functions. We believe our relations with our employees are good. In addition, we utilize and will continue to utilize consultants, clinical research organizations and third parties to perform our pre-clinical studies, clinical studies, manufacturing, and regulatory functions.

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Corporate Information

Corbus Pharmaceuticals, Inc. (formerly known as JB Therapeutics Inc.), was incorporated on April 24, 2009 under the laws of the State of Delaware. On April 11, 2014, JB Therapeutics, Inc. completed a merger with Corbus Pharmaceuticals Holdings, Inc. and changed its name to Corbus Pharmaceuticals, Inc. Upon the consummation of the merger, Corbus Pharmaceuticals, Inc. became a wholly-owned subsidiary of Corbus Pharmaceuticals Holdings, Inc. which continues to operate the business of Corbus Pharmaceuticals, Inc. Our principal executive offices are located at 500 River Ridge Drive, Norwood, Massachusetts 02062, and our telephone number is (617) 963-0100. Our website address is www.corbuspharma.com.

We make available free of charge through the Investor Relations link on our website, www.corbuspharma.com, access to press releases and investor presentations, as well as all materials that we file electronically with the SEC, including our annual report on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K and amendments to those reports, filed or furnished pursuant to Section 13(a) or 15(d) of the Exchange Act as soon as reasonably practicable after electronically filing such materials with, or furnishing them to, the SEC. During the period covered by this Form 10-K, we made all such materials available through our website as soon as reasonably practicable after filing such materials with the SEC. In addition, the SEC maintains an Internet website, www.sec.gov, that contains reports, proxy and information statements and other information that we file electronically with the SEC.

This report and the information incorporated herein by reference contain references to trademarks, service marks and trade names owned by us or other companies. Solely for convenience, trademarks, service marks and trade names referred to in this report and the information incorporated herein, including logos, artwork, and other visual displays, may appear without the ® or ™ symbols, but such references are not intended to indicate, in any way, that we will not assert, to the fullest extent under applicable law, our rights or the rights of the applicable licensor to these trademarks, service marks and trade names. We do not intend our use or display of other companies’ trade names, service marks or trademarks to imply a relationship with, or endorsement or sponsorship of us by, any other companies. Other trademarks, trade names and service marks appearing in this report are the property of their respective owners.

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ITEM 1A. RISK FACTORS

An investment in our common stock is speculative and illiquid and involves a high degree of risk including the risk of a loss of your entire investment. You should carefully consider the risks and uncertainties described below and the other information contained in this report and our other reports filed with the Securities and Exchange Commission. The risks set forth below are not the only ones facing us. Additional risks and uncertainties may exist that could also adversely affect our business, operations and financial condition. If any of the following risks actually materialize, our business, financial condition and/or operations could suffer. In such event, the value of our common stock could decline, and you could lose all or a substantial portion of the money that you pay for our common stock.

Summary of Risks Associated with Our Business

Our business and an investment in our company is subject to numerous risks and uncertainties, including those highlighted in the section titled “Risk Factors” immediately following this summary. Some of these risks include:

•We have never generated any product revenues;

•We expect to incur significant losses for the foreseeable future and may never achieve or maintain profitability;

•We will need substantial additional funding, and certain terms included in our financing transactions may restrict our ability to raise such capital at the times and in the manner we may require;

•We expect that we will rely on third parties to assist us in conducting clinical trials for our drug candidates, and if these third parties do not successfully carry out their contractual duties or meet expected deadlines, we may not be able to obtain regulatory approval for or commercialize our drug candidates and our business would be substantially harmed;

•Changes in geopolitical conditions, U.S.-China trade relations and other factors beyond our control may adversely impact our business and operating results;

•We will require additional capital to fund our operations, and if we fail to obtain necessary financing, we may not be able to complete the development and commercialization of our product candidates;

•Clinical trials are very expensive, time-consuming, difficult to design and implement and involve an uncertain outcome;

•If we are not able to obtain any required regulatory approvals for our drug candidates, we will not be able to commercialize our product candidates and our ability to generate revenue will be limited;

•We face competition from other biotechnology and pharmaceutical companies and our operating results will suffer if we fail to compete effectively;

•We do not have our own manufacturing capabilities and will rely on third parties to produce clinical and commercial supplies of our product candidates;

•We are, and will be, completely dependent on third parties to manufacture our drug candidates, and our commercialization of our drug candidates could be halted, delayed or made less profitable if those third parties fail to obtain manufacturing approval from the FDA or comparable foreign regulatory authorities, fail to provide us with sufficient quantities of our drug candidates or fail to do so at acceptable quality levels or prices;

•We have in-licensed a portion of our intellectual property, and if we fail to comply with our obligations under these arrangements, we could lose such intellectual property rights or owe damages to the licensor of such intellectual property; and

•We do not currently intend to pay dividends on our common stock in the foreseeable future, and consequently, your ability to achieve a return on your investment will depend on appreciation in the price of our common stock.

Risk Related to our Company and our Business

Risks Related to Our Business, Financial Position and Need for Capital

We are a biopharmaceutical company with a limited operating history.

We are a biopharmaceutical company with a limited operating history. All our product candidates that we do not intend to out-license are in the discovery stage, pre-clinical, or clinical development stage. We must complete clinical studies and other development activity and receive regulatory approval of an NDA or BLA, before commercial sales of a product can commence. The likelihood of success of our business plan must be considered in light of the problems, substantial expenses, difficulties, complications and delays frequently encountered in connection with developing and expanding early-stage businesses and the regulatory and competitive environment in which we operate. Pharmaceutical product development is a highly speculative undertaking, involves a substantial degree of risk and is a capital-intensive business.

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Accordingly, you should consider our prospects in light of the costs, uncertainties, delays and difficulties frequently encountered by companies in the early stages of development, especially clinical pharmaceutical companies such as ours. Potential investors should carefully consider the risks and uncertainties that a company with a limited operating history will face. In particular, potential investors should consider that we cannot assure you that we will be able to:

•successfully implement or execute our current business plan, and we cannot assure you that our business plan is sound;

•successfully manufacture our clinical products and establish commercial drug supply;

•successfully complete the pre-clinical and clinical trials necessary to obtain regulatory approval for the marketing of our drug candidates;

•secure market exclusivity and/or adequate intellectual property protection for our drug candidates;

•attract and retain an experienced management and advisory team;

•secure acceptance of our drug candidates in the medical community and with third-party payors and consumers;

•launch commercial sales of our drug candidates, whether alone or in collaboration with others; and

•raise sufficient funds in the capital markets to effectuate our business plan.

If we cannot successfully execute any one of the foregoing, our business may not succeed, and your investment will be adversely affected.

We have incurred operating losses in each year since our inception and expect to continue to incur substantial losses for the foreseeable future. We may never become profitable or, if we achieve profitability, be able to sustain profitability.

We expect to incur substantial expenses without corresponding revenues unless and until we are able to obtain regulatory approval and successfully commercialize any of our drug candidates. To date, we have not generated any revenue from our drug candidates, and we expect to incur significant expense to complete our pre-clinical and clinical program for our drug candidates in the U.S. and elsewhere. We may never be able to obtain regulatory approval for the marketing of our drug candidates in any indication in the U.S. or internationally. Even if we are able to commercialize our drug candidates, there can be no assurance that we will generate significant revenues or ever achieve profitability. Our net losses for the years ended December 31, 2023 and December 31, 2022 were approximately $44,603,000 and $42,347,000, respectively. As of December 31, 2023, we had an accumulated deficit of approximately $436,684,000.

We may elect to pursue FDA approval for our drug candidates, which will result in significant additional research and development expenses. As a result, we expect to continue to incur substantial losses for the foreseeable future, and these losses will increase. We are uncertain when or if we will be able to achieve or sustain profitability. If we achieve profitability in the future, we may not be able to sustain profitability in subsequent periods. Failure to become and remain profitable would impair our ability to sustain operations and adversely affect the price of our common stock and our ability to raise capital.

Our cash, cash equivalents, or investments will only fund our operations for a limited time, and we will need to raise additional capital to support our development and commercialization efforts.

We are currently operating at a loss and expect our operating costs will increase significantly as we incur further costs related to pre-clinical development and the clinical trials for our drug candidates. As of December 31, 2023, we held cash, cash equivalents, and investments of approximately $20,906,000.

On May 31, 2023, we entered into Amendment No. 1 to the Open Market Sale Agreement originally dated August 6, 2020 (the “Open Market Sale Agreement”) with Jefferies LLC (“Jefferies”) pursuant to which Jefferies is serving as the sales agent to sell shares of our common stock through an “at-the-market offering.” From May 31, 2023 through the date of this filing, we have sold approximately $21,237,000 in aggregate gross proceeds of shares of our common stock under the Open Market Sale Agreement. On January 30, 2024, we delivered written notice to Jefferies that we were suspending and terminating the prospectus supplement related to the shares issuable pursuant to the Open Market Sale Agreement. We will not make any sales pursuant to the Open Market Sale Agreement unless and until a new prospectus supplement is filed.

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On January 31, 2024, we entered into an underwriting agreement with Jefferies, as representative (the “Representative”) of the several underwriters (the “Underwriters”), relating to an underwritten public offering of 4,325,000 shares of our common stock, at a price to the public of $19.00 per share ("January 2024 Public Offering"). The Underwriters were also granted a 30-day option to purchase up to an additional 648,750 shares of common stock at the public offering price. On January 31, 2024, the Representative gave notice of the Underwriters’ election to exercise the option to purchase additional shares, in full. On February 2, 2024, we completed the public offering raising gross proceed of approximately $94,500,000 and net proceeds of $88,500,000 after deducting underwriting discounts and commissions and other estimated offering expenses payable by us.

We may seek additional capital through a combination of private and public equity offerings, debt financings and strategic collaborations. Debt financing, if obtained, may involve agreements that include covenants limiting or restricting our ability to take specific actions, such as incurring additional debt, and could increase our expenses and require that our assets secure such debt.

Equity financing, if obtained, could result in dilution to our then existing stockholders and/or require such stockholders to waive certain rights and preferences. If such financing is not available on satisfactory terms, or is not available at all, we may be required to delay, scale back or eliminate the development of business opportunities and our operations and financial condition may be materially adversely affected. We can provide no assurances that any additional sources of financing will be available to us on favorable terms, if at all. In addition, if we are unable to secure sufficient capital to fund our operations, we may choose to pursue, as an alternative, strategic collaborations that could require us to share commercial rights to our drug candidates with third parties in ways that we currently do not intend or on terms that may not be favorable to us. If we choose to pursue additional indications and/or geographies for our drug candidates or otherwise expand more rapidly than we presently anticipate we may also need to raise additional capital sooner than expected.

Our Loan and Security Agreement contains restrictive and financial covenants that may limit our operating flexibility.

On July 28, 2020, we entered into a Loan and Security Agreement (“the Loan and Security Agreement”) with our subsidiary, Corbus Pharmaceuticals, Inc., as borrower, us, as guarantor, and each lender party thereto (the “Lenders”), K2 HealthVentures LLC ("“K2HV"), an unrelated third party, as administrative agent for the Lenders, and Ankura Trust Company, LLC, an unrelated third party, as collateral agent for the Lenders, pursuant to which K2HV provided us with a term loan of $20,000,000 upon signing. The Loan and Security Agreement is secured by a lien of our personal property, excluding intellectual property, up to the outstanding balance of the term loan.

The Loan and Security Agreement contains customary representations, warranties, and covenants. including restrictive covenants by us and Borrower limiting additional indebtedness, liens, mergers and acquisitions, dispositions, investments, distributions, subordinated debt, transactions with affiliates and fundamental changes. We therefore may not be able to engage in any of the foregoing types of transactions unless we obtain the consent of K2 HealthVentures or prepay the outstanding amount under the Loan and Security Agreement. The Loan and Security Agreement also contains certain financial covenants, including requirements to maintain unrestricted cash in the amount of $10,000,000 or the amount of all principal loans outstanding if certain regulatory and developmental milestones do not occur.

The restrictions and covenants in the Loan and Security Agreement, as well as those contained in any future debt financing agreements that we may enter into, may restrict our ability to finance our operations and engage in, expand or otherwise pursue our business activities and strategies. Our ability to comply with these covenants and restrictions may be affected by events beyond our control, and breaches of these covenants and restrictions could result in a default under the loan agreement and any future financing agreements that we may enter into.

Risks Related to Product Development, Regulatory Approval, Manufacturing and Commercialization

Our success is dependent upon successful development of our drug candidates in our pipeline or that we may acquire. If we are unable to generate revenues from any product candidates, our ability to create stockholder value will be limited.

We do not generate revenues from any FDA approved drug products. Our current business currently depends on the successful development, regulatory approval, and commercialization of our pre-clinical drug candidates, which may never occur.

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CRB-701 is currently in a Phase 1 clinical trial being conducted by CSPC in China. The FDA cleared our IND for CRB-601 on January 9, 2024. We plan to commence clinical trials for both CRB-701 and CRB-601 in 2024. We are also completing pre-clinical testing for CRB-913 in the U.S. and we expect to file an IND in 2024. We note that most drug candidates never reach the clinical development stage and even those that do have only a small chance of successfully completing clinical development and gaining regulatory approval.

Drug development involves a lengthy and expensive process with an uncertain outcome, and results of earlier studies and trials may not be predictive of future trial results.

Our pre-clinical and clinical trials may be unsuccessful, which would materially harm our business. Even if our initial trials are successful, we will be required to conduct additional trials to establish the safety and efficacy of our drug candidates before an NDA or BLA can be filed with the FDA for marketing approval of any of our drug candidates.

Drug testing is expensive, is difficult to design and implement, can take many years to complete and is uncertain as to outcome. Success in early phases of pre-clinical and clinical trials does not ensure that later clinical trials will be successful, and interim results of a clinical trial do not necessarily predict final results. A failure of one or more of our trials can occur at any stage of testing. We may experience numerous unforeseen events during, or as a result of, the drug testing process that could delay or prevent our ability to receive regulatory approval or commercialize our drug candidates. The research, testing, manufacturing, labeling, packaging, storage, approval, sale, marketing, advertising and promotion, pricing, export, import and distribution of drug products are subject to extensive regulation by the FDA and other regulatory authorities in the U.S. and other countries, which regulations differ from country to country. We are not permitted to market any of our drug candidates as prescription pharmaceutical products in the U.S. until we receive approval of an NDA or BLA from the FDA or in foreign markets until we receive the requisite approval from comparable regulatory authorities in such countries. In the U.S., the FDA generally requires the completion of pre-clinical and clinical trials of each drug to establish its safety and efficacy and extensive pharmaceutical development to ensure its quality before an NDA or BLA is approved. Regulatory authorities in other jurisdictions impose similar requirements. Of the large number of drugs in development, only a small percentage result in the submission of an NDA or BLA to the FDA and even fewer are eventually approved for commercialization. We have never submitted an NDA or BLA to the FDA or any comparable applications to other regulatory authorities. If our development efforts for our drug candidates, including regulatory approval, are not successful for our planned indications, or if adequate demand for our drug candidates is not generated, our business will be harmed.

Receipt of necessary regulatory approval is subject to a number of risks, including the following:

•pre-clinical testing may not yield results that justify progressing to clinical testing;

•the FDA or comparable foreign regulatory authorities or institutional review boards, or IRBs, may disagree with the design or implementation of our clinical trials;

•we may not be able to provide acceptable evidence of the safety and efficacy of our drug candidates;

•the results of our clinical trials may not be satisfactory or may not meet the level of statistical or clinical significance required by the FDA, the European Medicines Agency, or EMA, or other comparable foreign regulatory authorities for marketing approval;

•the dosing of our drug candidates in a particular clinical trial may not be at an optimal level;

•patients in our clinical trials may suffer adverse effects for reasons that may or may not be related to our drug candidates;

•the data collected from clinical trials may not be sufficient to support the submission of an NDA, BLA, or other submission or to obtain regulatory approval in the U.S. or elsewhere;

•the FDA or comparable foreign regulatory authorities may fail to approve the manufacturing processes or facilities of third-party manufacturers with which we contract for clinical and commercial supplies;

•the approval policies or regulations of the FDA or comparable foreign regulatory authorities may significantly change in a manner rendering our clinical data insufficient for approval; and

•the FDA or comparable foreign regulatory authorities may decide that the clinical trial endpoints we have chosen, the statistical analysis plans that we use, or any other parameter that we rely on to show the safety and efficacy of our drugs, are not parameters that can be used to support approval of our products.

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Failure to obtain regulatory approval for any of our drug candidates for the foregoing or any other reasons will prevent us from commercializing such product candidate as a prescription product, and our ability to generate revenue will be materially impaired. We cannot guarantee that regulators will agree with the endpoints that we have chosen to use in our clinical trials, our assessment of the results of our clinical trials or that such trials will be considered by regulators to have shown safety or efficacy of our product candidates. The FDA, EMA and other regulators have substantial discretion in the approval process and may refuse to accept any application or may decide that our data is insufficient for approval and require additional clinical trials, or pre-clinical or other studies. In addition, varying interpretations of the data obtained from pre-clinical and clinical testing could delay, limit or prevent regulatory approval of a product candidate.

We have only limited experience in filing the applications necessary to gain regulatory approvals and expect to rely on consultants and third-party contract research organizations, or CROs, with expertise in this area to assist us in this process. Securing FDA approval requires the submission of pre-clinical, clinical and/or pharmacokinetic data, information about product manufacturing processes and inspection of facilities and supporting information to the FDA for each therapeutic indication to establish a product candidate’s safety and efficacy for each indication. Our drug candidates may prove to have undesirable or unintended side effects, toxicities or other characteristics that may preclude our obtaining regulatory approval or prevent or limit commercial use with respect to one or all intended indications.

The process of obtaining regulatory approvals is expensive, often takes many years, if approval is obtained at all, and can vary substantially based upon, among other things, the type, complexity and novelty of the product candidates involved, the jurisdiction in which regulatory approval is sought and the substantial discretion of regulatory authorities. Changes in the regulatory approval policy during the development period, changes in or the enactment of additional statutes or regulations, or changes in regulatory review for a submitted product application may cause delays in the approval or rejection of an application. Regulatory approval obtained in one jurisdiction does not necessarily mean that a product candidate will receive regulatory approval in all jurisdictions in which we may seek approval, but the failure to obtain approval in one jurisdiction may negatively impact our ability to seek approval in a different jurisdiction. Failure to obtain regulatory marketing approval for any of our drug candidates in any indication will prevent us from commercializing such product candidates, and our ability to generate revenue will be materially impaired.

If we are not able to obtain any required regulatory approvals for our drug candidates, we will not be able to commercialize our product candidates and our ability to generate revenue will be limited.

Drug testing is expensive and can take many years to complete, and its outcome is inherently uncertain. Failure can occur at any time during the clinical trial process. Our drug candidates are in various stages of discovery, pre-clinical, and clinical testing. Pre-clinical tests are performed at an early stage of a product's development and provide information about a drug candidate's safety and effectiveness on laboratory animals. Pre-clinical tests can last years. If a product passes its pre-clinical tests satisfactorily and we determine that further development is warranted, we would file an IND application for the product with the FDA, and if the FDA gives its approval, we would begin Phase 1 clinical tests. If Phase 1 test results are satisfactory and the FDA gives its approval, we can begin Phase 2 clinical tests. If Phase 2 test results are satisfactory and the FDA gives its approval, we can begin Phase 3 pivotal studies. Once clinical testing is completed and an NDA or BLA is filed with the FDA, it may take more than a year to receive FDA approval.

The results of pre-clinical studies and early clinical trials may not be predictive of the results of later-stage clinical trials. We cannot assure you that the FDA will view the results as we do or that any future trials of our drug candidates will achieve positive results. Product candidates in later stages of clinical trials may fail to show the desired safety and efficacy traits despite having progressed through pre-clinical studies and initial clinical trials. A number of companies in the pharmaceutical industry have suffered significant setbacks in advanced clinical trials due to lack of efficacy or adverse safety profiles, notwithstanding promising results in earlier trials. Any future clinical trial results for our drug candidates may not be successful.

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In all cases, we must show that a drug candidate is both safe and effective before the FDA, or drug approval agencies of other countries where we intend to sell the product, will approve it for sale. Our research and testing programs must comply with drug approval requirements both in the U.S. and in other countries, since we are developing our drug candidates with the intention to, or could later decide to, commercialize them both in the U.S. and abroad. A product may fail for safety or effectiveness at any stage of the testing process. A major risk we face is the possibility that none of our products under development will come through the testing process to final approval for sale, with the result that we cannot derive any commercial revenue from them after investing significant amounts of capital in multiple stages of pre-clinical and clinical testing. In addition, a number of factors could contribute to a lack of favorable safety and efficacy results for our drug candidates. For example, our trials could result in increased variability due to varying site characteristics, such as local standards of care, differences in evaluation period and surgical technique, and due to varying patient characteristics, including demographic factors and health status.

Changes in product candidate manufacturing or formulation may result in additional costs or delay.

As product candidates proceed through preclinical studies to late-stage clinical trials towards potential approval and commercialization, it is common that various aspects of the development program, such as manufacturing methods and formulation, are altered along the way in an effort to optimize processes and results. Such changes carry the risk that they will not achieve these intended objectives. Any of these changes could cause our product candidates to perform differently and affect the results of planned clinical trials or other future clinical trials conducted with the altered materials. Such changes may also require additional testing, FDA notification or FDA approval. This could delay completion of clinical trials, require the conduct of bridging clinical trials or the repetition of one or more clinical trials.

Approval may be delayed or denied because we cannot satisfy FDA’s Chemistry, Manufacturing and Control Requirements.

Formulation and manufacturing of biologic products such as ours is complex and expensive. Our BLAs must include information about the chemistry and physical characteristics of our products, and we must demonstrate that we have a reliable process for manufacturing the products in commercial quantities in accordance with FDA’s current cGMP requirements. The manufacturing process must consistently produce quality batches of the biologic, and, among other things, the manufacturer must develop methods for testing the identity, strength, quality and purity of the final product. In addition, appropriate packaging must be selected and tested, and stability studies must be conducted to demonstrate the effectiveness of the packaging and that the compound does not undergo unacceptable deterioration over its shelf life. If we are unable to successfully complete any of these complex steps, approval of our biologic may be delayed or denied.

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Even if we receive regulatory approval for our drug candidates, we still may not be able to successfully commercialize any of our products, and the revenue that we generate from sales, if any, may be limited.

If approved for marketing, the commercial success of our drug candidates will depend upon their acceptance by the medical community, including physicians, patients and health-care payors. The degree of market acceptance of our drug candidates will depend on a number of factors, including:

•demonstration of clinical safety and efficacy;

•relative convenience, pill burden and ease of administration;

•the prevalence and severity of any adverse effects;

•the willingness of physicians to prescribe our drug candidates and of the target patient population to try new therapies;

•safety, tolerability and efficacy of our drug candidates compared to competing products;

•safety of competing products may impact our drug candidates;

•the introduction of any new products that may in the future become available to treat indications for which our drug candidates may be approved;

•new procedures or methods of treatment that may reduce the incidences of any of the indications in which our drug candidates may show utility;

•pricing and cost-effectiveness;

•the inclusion or omission of our drug candidates in applicable treatment guidelines;

•the effectiveness of our or any future collaborators’ sales and marketing strategies;

•limitations or warnings contained in FDA-approved labeling;

•our ability to obtain and maintain sufficient third-party coverage or reimbursement from government health-care programs, including Medicare and Medicaid, private health insurers and other third-party payors; and

•the willingness of patients to pay out-of-pocket in the absence of third-party coverage or reimbursement.

If any of our drug candidates are approved, but do not achieve an adequate level of acceptance by physicians, health-care payors and patients, we may not generate sufficient revenue and we may not be able to achieve or sustain profitability. Our efforts to educate the medical community and third-party payors on the benefits of our drug candidates may require significant resources and may never be successful.

In addition, even if we obtain regulatory approvals, the timing or scope of any approvals may prohibit or reduce our ability to commercialize our drug candidates successfully. For example, if the approval process takes too long, we may miss market opportunities and give other companies the ability to develop competing products or establish market dominance. Any regulatory approval we ultimately obtain may be limited or subject to restrictions or post-approval commitments that render our drug candidates not commercially viable. For example, regulatory authorities may approve our drug candidates for fewer or more limited indications than we request, may not approve the prices we intend to charge for our drug candidates, may grant approval contingent on the performance of costly post-marketing clinical trials, or may approve our drug candidates with labels that do not include the labeling claims necessary or desirable for the successful commercialization of a particular indication. Further, the FDA or comparable foreign regulatory authorities may place conditions on approvals, such as risk management plans and a Risk Evaluation and Mitigation Strategy, or REMS, to assure the safe use of the drug. If the FDA concludes a REMS is needed, the sponsor of the NDA or BLA must submit a proposed REMS; the FDA will not approve the NDA or BLA without an approved REMS, if required. A REMS could include medication guides, physician communication plans, or elements to assure safe use, such as restricted distribution methods, patient registries and other risk minimization tools. The FDA may also require a REMS for an approved product when new safety information emerges. Any of these limitations on approval or marketing could restrict the commercial promotion, distribution, prescription or dispensing of our drug candidates. Moreover, product approvals may be withdrawn for non-compliance with regulatory standards or if problems occur following the initial marketing of the product. Any of the foregoing scenarios could materially harm the commercial success of our drug candidates.

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Even if we obtain marketing approval for our drug candidates, we will be subject to ongoing obligations and continued regulatory review, which may result in significant additional expense. Additionally, our drug candidates could be subject to labeling and other restrictions and withdrawal from the market, and we may be subject to penalties if we fail to comply with regulatory requirements or if we experience unanticipated problems with our drug candidates.

Even if we obtain U.S. regulatory approval of our drug candidates for an indication, the FDA may still impose significant restrictions on their indicated uses or marketing or the conditions of approval or impose ongoing requirements for potentially costly and time-consuming post-approval studies, including Phase 4 clinical trials, and post-market surveillance to monitor safety and efficacy. Our drug candidates will also be subject to ongoing regulatory requirements governing the manufacturing, labeling, packaging, storage, distribution, safety surveillance, advertising, promotion, recordkeeping and reporting of adverse events and other post-market information. These requirements include registration with the FDA, continued compliance with current Good Clinical Practices regulations, or cGCPs, for any clinical trials that we conduct post-approval, continued compliance with the CSA and ongoing review by the DEA. In addition, manufacturers of drug products and their facilities are subject to continual review and periodic inspections by the FDA and other regulatory authorities for compliance with cGMP requirements relating to quality control, quality assurance and corresponding maintenance of records and documents.

With respect to sales and marketing activities by us or any future partner, advertising and promotional materials must comply with FDA rules in addition to other applicable federal, state and local laws in the U.S. and similar legal requirements in other countries. In the U.S., the distribution of product samples to physicians must comply with the requirements of the U.S. Prescription Drug Marketing Act. Application holders must obtain FDA approval for product and manufacturing changes, depending on the nature of the change. We may also be subject, directly or indirectly through our customers and partners, to various fraud and abuse laws, including, without limitation, the U.S. Anti-Kickback Statute, U.S. False Claims Act, and similar state laws, which impact, among other things, our proposed sales, marketing, and scientific/educational grant programs. If we participate in the U.S. Medicaid Drug Rebate Program, the Federal Supply Schedule of the U.S. Department of Veterans Affairs, or other government drug programs, we will be subject to complex laws and regulations regarding reporting and payment obligations. All of these activities are also potentially subject to U.S. federal and state consumer protection and unfair competition laws. Similar requirements exist in many of these areas in other countries.

In addition, if any of our drug candidates are approved for an indication, our product labeling, advertising, and promotion would be subject to regulatory requirements and continuing regulatory review. The FDA strictly regulates the promotional claims that may be made about prescription products. In particular, a product may not be promoted for uses that are not approved by the FDA as reflected in the product’s approved labeling. If we receive marketing approval for any of our drug candidates, physicians may nevertheless legally prescribe such products to their patients in a manner that is inconsistent with the approved label. However, if we are found to have promoted such off-label uses, we may become subject to significant liability and government fines. The federal government has levied large civil and criminal fines against companies for alleged improper promotion and has enjoined several companies from engaging in off-label promotion. The FDA has also requested that companies enter into consent decrees of permanent injunctions under which specified promotional conduct is changed or curtailed.

If we or a regulatory agency discover previously unknown problems with a product, such as adverse events of unanticipated severity or frequency or problems with the facility where the product is manufactured, or if we or our manufacturers fail to comply with applicable regulatory requirements, we may be subject to the following administrative or judicial sanctions:

▪restrictions on the marketing or manufacturing of the product, withdrawal of the product from the market, or voluntary or mandatory product recalls;

▪issuance of warning letters or untitled letters;

▪injunctions or the imposition of civil or criminal penalties or monetary fines;

▪suspension of any ongoing clinical trials;

▪refusal to approve pending applications or supplements to approved applications filed by us, or suspension or revocation of product license approvals;

▪suspension of, or imposition of restrictions on, operations, including costly new manufacturing requirements; or

▪product seizure or detention or refusal to permit the import or export of product.

The occurrence of any event or penalty described above may inhibit our ability to commercialize our drug candidates and generate revenue. Adverse regulatory action, whether pre- or post-approval, can also potentially lead to product liability claims and increase our product liability exposure.

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Our product candidates may cause undesirable side effects or have other unexpected properties that could delay or prevent their regulatory approval, limit the commercial profile of an approved label or result in post-approval regulatory action.

Unforeseen side effects from any of our product candidates could arise either during clinical development or, if approved, after the approved product has been marketed. Undesirable side effects caused by product candidates could cause us, any partners with which we may collaborate or regulatory authorities to interrupt, modify, delay or halt clinical trials and could result in a more restrictive label or the delay or denial of regulatory approval by the FDA or comparable foreign authorities. Results of clinical trials could reveal a high and unacceptable severity and prevalence of side effects. In such an event, trials could be suspended or terminated and the FDA or comparable foreign regulatory authorities could order us, or our potential partners, to cease further development of or deny approval of product candidates for any or all targeted indications. The drug-related side effects could affect patient recruitment or the ability of enrolled patients to complete the trial or result in product liability claims. Any of these occurrences may harm our business, financial condition, operating results and prospects.

Additionally, if we or others identify undesirable side effects, or other previously unknown problems, caused by our product candidates after obtaining U.S. or foreign regulatory approval or other products with the same or related active ingredients, a number of potentially negative consequences could result, including:

•regulatory authorities may withdraw their approval of the product;

•regulatory authorities may require a recall of the product or we or our potential partners may voluntarily recall a product;

•regulatory authorities may require the addition of warnings or contraindications in the product labeling, narrowing of the indication in the product label or field alerts to physicians and pharmacies;

•we may be required to create a medication guide outlining the risks of such side effects for distribution to patients or institute a REMS;

•we may have limitations on how we promote the product;

•we may be required to change the way the product is administered or modify the product in some other way; the FDA or applicable foreign regulatory authority may require additional clinical trials or costly post-marketing testing and surveillance to monitor the safety or efficacy of the product;

•the FDA or applicable foreign regulatory authority may require additional clinical trials or costly post-marketing testing and surveillance to monitor the safety or efficacy of the product

•sales of the product may decrease significantly;

•we could be sued and held liable for harm caused to patients; and

•our brand and reputation may suffer.

Any of the above events resulting from undesirable side effects or other previously unknown problems could prevent us or our potential partners from achieving or maintaining market acceptance of the affected product candidate and could substantially increase the costs of commercializing our product candidates.

We have entered into, and may in the future enter into, collaboration agreements for the licensing, development, and ultimate commercialization of some of our drug candidates. In such cases, we will depend greatly on our third-party collaborators to license, develop and commercialize such drug candidates, and they may not meet our expectations.

We may enter into co-development and commercialization partnerships for our drug candidates where appropriate. The process of identifying collaborators and negotiating collaboration agreements for the licensing, development, and ultimate commercialization of some of our drug candidates may cause delays and increased costs. We may not be able to enter into collaboration agreements on terms favorable to us or at all. Furthermore, some of those agreements may give substantial responsibility over our drug candidates to the collaborator. Some collaborators may be unable or unwilling to devote sufficient resources to develop our drug candidates as their agreements require. They often face business risks similar to ours, and this could interfere with their efforts. Also, collaborators may choose to devote their resources to products that compete with ours. If a collaborator does not successfully develop any one of our products, we will need to find another collaborator to do so. The success of our search for a new collaborator will depend on our legal right to do so at the time and whether the product remains commercially viable.

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If we enter into collaboration agreements for one or more of our drug candidates, the success of such drug candidates will depend in great part upon our and our collaborators’ success in promoting them as superior to other treatment alternatives. We believe that our drug candidates can be proven to offer disease treatment with notable advantages over drugs in terms of patient compliance and effectiveness. However, there can be no assurance that we will be able to prove these advantages or that the advantages will be sufficient to support the successful commercialization of our drug candidates.

We face competition from other biotechnology and pharmaceutical companies and our operating results will suffer if we fail to compete effectively.

The biotechnology and pharmaceutical industries are intensely competitive and subject to rapid and significant technological change. We have competitors in a number of jurisdictions, many of which have substantially greater name recognition, commercial infrastructures and financial, technical and personnel resources than we have. Established competitors may invest heavily to quickly discover and develop novel compounds that could make our drug candidates obsolete or uneconomical. Any new product that competes with an approved product may need to demonstrate compelling advantages in efficacy, cost, convenience, tolerability and safety to be commercially successful. Other competitive factors, including generic competition, could force us to lower prices or could result in reduced sales. In addition, new products developed by others could emerge as competitors to our drug candidates. If we are not able to compete effectively against our current and future competitors, our business will not grow, and our financial condition and operations will suffer.

Recently enacted and future legislation may increase the difficulty and cost for us to obtain marketing approval of and commercialize our drug candidates and affect the prices we may obtain.

In the U.S. and some foreign jurisdictions, there have been a number of legislative and regulatory changes and proposed changes regarding the healthcare system that could prevent or delay marketing approval for our drug candidates, restrict or regulate post-approval activities and affect our ability to profitably sell our drug candidates. Legislative and regulatory proposals have been made to expand post-approval requirements and restrict sales and promotional activities for pharmaceutical products. We do not know whether additional legislative changes will be enacted, or whether the FDA regulations, guidance or interpretations will be changed, or what the impact of such changes on the marketing approvals of our drug candidates, if any, may be. In addition, increased scrutiny by the U.S. Congress of the FDA’s approval process may significantly delay or prevent marketing approval, as well as subject us to more stringent product labeling and post-marketing testing and other requirements.

In the U.S., under the Medicare Modernization Act, or MMA, Medicare Part D provides coverage to the elderly and disabled for outpatient prescription drugs by approving and subsidizing prescription drug plans offered by private insurers. The MMA also authorizes Medicare Part D prescription drug plans to use formularies where they can limit the number of drugs that will be covered in any therapeutic class. The Part D plans use their formulary leverage to negotiate rebates and other price concessions from drug manufacturers. Also under the MMA, Medicare Part B provides coverage to the elderly and disabled for physician-administered drugs on the basis of the drug’s average sales price, a price that is calculated according to regulatory requirements and that the manufacturer reports to Medicare quarterly.

Both Congress and the Centers for Medicare & Medicaid Services (CMS), the agency that administers the Medicare program, from time to time consider legislation, regulations, or other initiatives to reduce drug costs under Medicare Parts B and D. For example, under the 2010 Affordable Care Act, drug manufacturers are required to provide a 50% discount on prescriptions for branded drugs filled while the beneficiary is in the Medicare Part D coverage gap, also known as the “donut hole.” There have been legislative proposals to repeal the “non-interference” provision of the MMA to allow CMS to leverage the Medicare market share to negotiate larger Part D rebates. Further cost reduction efforts could decrease the coverage and price that we receive for our drug candidates and could seriously harm our business. Private payors often follow Medicare coverage policy and payment limitations in setting their own reimbursement rates, and any reduction in reimbursement under the Medicare program may result in a similar reduction in payments from private payors.

The 2010 Affordable Care Act is intended to broaden access to health insurance and reduce or constrain the growth of healthcare spending. Further, the Affordable Care Act imposes a significant annual fee on companies that manufacture or import branded prescription drug products. It also increased the amount of the rebates drug manufacturers must pay to state Medicaid programs, required that Medicaid rebates be paid on managed Medicaid utilization, and increased the additional rebate on “line extensions” (such as extended-release formulations) of solid oral dosage forms of branded products. The law also contains substantial provisions affecting fraud and abuse compliance and transparency, which may require us to modify our business practices with healthcare practitioners and incur substantial costs to ensure compliance.

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In addition, other legislative changes that affect the pharmaceutical industry have been proposed and adopted in the U.S. since the ACA was enacted. For example, the Inflation Reduction Act of 2022 included, among other things, a provision that authorizes CMS to negotiate a “maximum fair price” for a limited number of high-cost, single-source drugs every year, and another provision that requires drug companies to pay rebates to Medicare if prices rise faster than inflation. In addition, various states have adopted or are considering adopting laws that require pharmaceutical companies to provide notice prior to raising prices and to justify price increases. We expect that additional healthcare reform measures will be adopted in the future, any of which could limit the amounts that federal and state governments will pay for healthcare products and services, and in turn could significantly reduce the projected value of certain development projects and reduce our profitability.

Our future growth depends, in part, on our ability to enter into and succeed in markets outside of the U.S., where we may choose to rely on third-party collaborations and will be subject to additional regulatory and commercial burdens, risks and other uncertainties.

Our future profitability will depend, in part, on our ability to gain approval of and commercialize our drug candidates in non-U.S. markets. In some or all of these non-U.S. markets, we intend to enter into licensing and contractual collaborations with third parties to handle some or all of the tasks and responsibilities necessary to succeed. Our activities in non-U.S. markets are subject to additional risks and uncertainties, including:

•our ability to enter into favorable licensing and contractual arrangements with our partners;

•our ability to select partners who are capable of achieving success at the tasks they agree to perform;

•obtaining timely and sufficient favorable approval terms for our drug candidates;

•obtaining favorable pricing and reimbursement;

•our inability to directly control commercial activities because we are relying on third parties;

•the burden of complying with complex and changing foreign regulatory, tax, accounting and legal requirements;

•different medical practices and customs in foreign countries affecting acceptance in the marketplace;

•import or export licensing requirements;

•longer accounts receivable collection times;

•longer lead times for shipping;

•language barriers for technical training;

•reduced protection of intellectual property rights in some foreign countries;

•foreign currency exchange rate fluctuations; and

•the interpretation of contractual provisions governed by foreign laws in the event of a contract dispute.

International sales of our drug candidates could also be adversely affected by the imposition of governmental controls, political and economic instability, and trade restrictions and changes in tariffs, any of which may adversely affect our results of operations.

If we market our drug candidates in a manner that violates healthcare fraud and abuse laws, or if we violate government price reporting laws, we may be subject to civil or criminal penalties.

The FDA enforces laws and regulations which require that the promotion of pharmaceutical products be consistent with the approved prescribing information. While physicians may prescribe an approved product for a so-called “off label” use, it is unlawful for a pharmaceutical company to promote its products in a manner that is inconsistent with its approved label and any company which engages in such conduct may be subject to significant liability. Similarly, industry codes in the European Union and other foreign jurisdictions prohibit companies from engaging in off-label promotion and regulatory agencies in various countries enforce violations of the code with civil penalties. While we intend to ensure that our promotional materials are consistent with our label, regulatory agencies may disagree with our assessment and may issue untitled letters, warning letters or may institute other civil or criminal enforcement proceedings. In addition to FDA restrictions on marketing of pharmaceutical products, several other types of state and federal healthcare fraud and abuse laws have been applied in recent years to restrict certain marketing practices in the pharmaceutical industry. These laws include the U.S. Anti-Kickback Statute, U.S. False Claims Act and similar state laws. Because of the breadth of these laws and the narrowness of the safe harbors, it is possible that some of our business activities could be subject to challenge under one or more of these laws.

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The U.S. Anti-Kickback Statute prohibits, among other things, knowingly and willfully offering, paying, soliciting or receiving remuneration to induce, or in return for, purchasing, leasing, ordering or arranging for the purchase, lease or order of any healthcare item or service reimbursable under Medicare, Medicaid or other federally financed healthcare programs. This statute has been interpreted broadly to apply to arrangements between pharmaceutical manufacturers on the one hand and prescribers, purchasers and formulary managers on the other. Although there are several statutory exemptions and regulatory safe harbors protecting certain common activities from prosecution, the exemptions and safe harbors are drawn narrowly, and practices that involve remuneration intended to induce prescribing, purchasing or recommending may be subject to scrutiny if they do not qualify for an exemption or safe harbor. Our practices may not, in all cases, meet all of the criteria for safe harbor protection from anti-kickback liability. Moreover, recent health-care reform legislation has strengthened these laws. For example, the Health Care Reform Law, among other things, amends the intent requirement of the U.S. Anti-Kickback Statute and criminal health-care fraud statutes; a person or entity no longer needs to have actual knowledge of this statute or specific intent to violate it. In addition, the Health Care Reform Law provides that the government may assert that a claim including items or services resulting from a violation of the U.S. Anti-Kickback Statute constitutes a false or fraudulent claim for purposes of the U.S. False Claims Act. Federal false claims laws prohibit any person from knowingly presenting, or causing to be presented, a false claim for payment to the federal government or knowingly making, or causing to be made, a false statement to get a false claim paid.

Over the past few years, pharmaceutical and other healthcare companies have been prosecuted under these laws for a variety of alleged promotional and marketing activities, such as: allegedly providing free trips, free goods, sham consulting fees and grants and other monetary benefits to prescribers; reporting to pricing services inflated average wholesale prices that were then used by federal programs to set reimbursement rates; engaging in off-label promotion that caused claims to be submitted to Medicare or Medicaid for non-covered, off-label uses; and submitting inflated best price information to the Medicaid Rebate Program to reduce liability for Medicaid rebates. Most states also have statutes or regulations similar to the U.S. Anti-Kickback Statute and the U.S. False Claims Act, which apply to items and services reimbursed under Medicaid and other state programs, or, in several states, apply regardless of the payor. Sanctions under these federal and state laws may include substantial civil monetary penalties, exclusion of a manufacturer’s products from reimbursement under government programs, substantial criminal fines and imprisonment.

We are, and will be, completely dependent on third parties to manufacture our drug candidates, and our commercialization of our drug candidates could be halted, delayed or made less profitable if those third parties fail to obtain manufacturing approval from the FDA or comparable foreign regulatory authorities, fail to provide us with sufficient quantities of our drug candidates or fail to do so at acceptable quality levels or prices.

We do not currently have, nor do we plan to acquire, the capability or infrastructure to manufacture the active pharmaceutical ingredients of our drug candidates, or the finished drug products, for use in our clinical trials or for commercial product, if any. As a result, we will be obligated to rely on contract manufacturers if and when our drug candidates are approved for commercialization.

We currently rely on contract suppliers for the manufacturing of our drug candidates. We have limited experience contracting third parties to manufacture our drug candidates and we do not control the manufacturing processes of, and are completely dependent on, our contract manufacturing partners for compliance with cGMPs for manufacture of all active drug substances and finished drug products. These cGMP regulations cover all aspects of the manufacturing, testing, quality control and record keeping relating to our drug candidates. If our contract manufacturers cannot successfully manufacture material that conforms to our specifications and the strict regulatory requirements of the FDA or others, they will not be able to secure and/or maintain regulatory approval for their manufacturing facilities. If the FDA or a comparable foreign regulatory authority does not approve these facilities for the manufacture of our product candidates or if it withdraws any such approval in the future, we may need to find alternative manufacturing facilities, which would significantly impact our ability to develop, obtain regulatory approval for or market our drug candidates, if approved.

Our contract manufacturers will be subject to ongoing periodic unannounced inspections by the FDA and corresponding state and foreign agencies for compliance with cGMPs and similar regulatory requirements. We will not have control over our contract manufacturers’ compliance with these regulations and standards. Failure by any of our contract manufacturers to comply with applicable regulations could result in sanctions being imposed on us, including fines, injunctions, civil penalties, failure to grant approval to market our drug candidates, delays, suspensions or withdrawals of approvals, operating restrictions and criminal prosecutions, any of which could significantly and adversely affect our business. In addition, we will not have control over the ability of our contract manufacturers to maintain adequate quality control, quality assurance and qualified personnel. Failure by our contract manufacturers to comply with or maintain any of these standards could adversely affect our ability to develop, obtain regulatory approval for or market our drug candidates.

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If, for any reason, these third parties are unable or unwilling to perform, we may not be able to terminate our agreements with them, and we may not be able to locate alternative manufacturers or formulators or enter into favorable agreements with them and we cannot be certain that any such third parties will have the manufacturing capacity to meet future requirements. If these manufacturers or any alternate manufacturer of finished drug product experiences any significant difficulties in its respective manufacturing processes for our active pharmaceutical ingredient, or API, or our finished products or should cease doing business with us, we could experience significant interruptions in the supply of our drug candidates or may not be able to create a supply of our drug candidates at all. Were we to encounter manufacturing issues, our ability to produce a sufficient supply of our drug candidates might be negatively affected. Our inability to coordinate the efforts of our third-party manufacturing partners, or the lack of capacity available at our third-party manufacturing partners, could impair our ability to supply our drug candidates at required levels. Because of the significant regulatory requirements that we would need to satisfy in order to qualify a new bulk or finished product manufacturer, if we face these or other difficulties with our current manufacturing partners, we could experience significant interruptions in the supply of our drug candidates if we decided to transfer the manufacture of our drug candidates to one or more alternative manufacturers in an effort to deal with the difficulties.

Any manufacturing problem or the loss of a contract manufacturer could be disruptive to our operations and result in lost sales. Additionally, we rely on third parties to supply the raw materials needed to manufacture our potential products. Any reliance on suppliers may involve several risks, including a potential inability to obtain critical materials and reduced control over production costs, delivery schedules, reliability, and quality. Any unanticipated disruption to a future contract manufacturer caused by problems at suppliers could delay shipment of our drug candidates, increase our cost of goods sold and result in lost sales.

We cannot guarantee that our manufacturing and supply partners will be able to manufacture our drug candidates at commercial scale on a cost-effective basis. If the commercial-scale manufacturing costs of our drug candidates are higher than expected, these costs may significantly impact our operating results. In order to reduce costs, we may need to develop and implement process improvements. However, in order to do so, we will need, from time to time, to notify or make submissions with regulatory authorities, and the improvements may be subject to approval by such regulatory authorities. We cannot be sure that we will receive these necessary approvals or that these approvals will be granted in a timely fashion. We also cannot guarantee that we will be able to enhance and optimize output in our commercial manufacturing process. If we cannot enhance and optimize output, we may not be able to reduce our costs over time.

There are risks associated with scaling up manufacturing to commercial scale. If our contract manufacturers are unable to manufacture our drug candidates on a commercial scale, this could potentially delay regulatory approval and commercialization or materially adversely affect our results of operations.

There are risks associated with scaling up manufacturing to commercial volumes including, among others, cost overruns, technical problems with process scale-up, process reproducibility, stability issues, and lot consistency. We have limited experience contracting with third parties to manufacture drug candidates and will need to be able to successfully scale up and produce batches of our drug candidates to commence clinical studies. We are dependent on our licensing partner, CSPC, to manufacture antibody drug conjugates and we do not have control over their chemistry, manufacturing, and control strategy for CRB-701 to ensure successful development and supply of drug to commence clinical studies or support commercial demand. Even if we obtain regulatory approval for our drug candidates, there is no assurance that our contract manufacturers or licensing partners will be able to manufacture the approved products to specifications acceptable to the FDA or other regulatory authorities, to produce them in sufficient quantities to meet the requirements for the potential launch of the product or to meet potential future demand. If our manufacturers are unable to produce sufficient quantities of approved products for commercialization, either on a timely basis or at all, our commercialization efforts would be impaired, which would have a material adverse effect on our business, financial condition, results of operations and growth prospects.

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We expect that we will rely on third parties to assist us in conducting clinical trials for our drug candidates. If these third parties do not successfully carry out their contractual duties or meet expected deadlines, we may not be able to obtain regulatory approval for or commercialize our drug candidates and our business would be substantially harmed.

We expect to enter into agreements with third-party CROs to assist us in conducting and managing our clinical programs, including contracting with clinical sites to perform our clinical studies. We plan to rely on these parties for execution of clinical studies for our drug candidates and we will control only certain aspects of conducting the clinical studies. Nevertheless, we will be responsible for ensuring that each of our studies is conducted in accordance with the applicable protocol, legal, regulatory and scientific standards, and our reliance on CROs and clinical sites will not relieve us of our regulatory responsibilities. We and our CROs will be required to comply with cGCPs, which are regulations and guidelines enforced by the FDA, the Competent Authorities of the Member States of the European Economic Area and comparable foreign regulatory authorities for any products in clinical development. The FDA enforces these cGCP regulations through periodic inspections of trial sponsors, principal investigators and trial sites. If we or our CROs fail to comply with applicable cGCPs, 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, the FDA will determine that any of our clinical trials comply with cGCPs. In addition, our clinical trials must be conducted with products produced under cGMP regulations and will require a large number of test subjects. Our failure or the failure of our CROs or clinical sites to comply with these regulations may require us to repeat clinical trials, which would delay the regulatory approval process and could also subject us to enforcement action up to and including civil and criminal penalties.

Although we intend to design the clinical trials for our drug candidates in consultation with CROs, we expect that the CROs will manage and assist us with the clinical trials conducted at contracted clinical sites. As a result, many important aspects of our drug development programs would be outside of our direct control. In addition, the CROs and clinical sites may not perform all of their obligations under arrangements with us or in compliance with regulatory requirements. If the CROs or clinical sites do not perform clinical trials in a satisfactory manner, or if they breach their obligations to us or fail to comply with regulatory requirements, the development and commercialization of our drug candidates for the subject indications may be delayed or our development program materially and irreversibly harmed. We cannot control the amount and timing of resources these CROs and clinical sites will devote to our program or our drug candidates. If we are unable to rely on clinical data collected by our CROs, we could be required to repeat, extend the duration of, or increase the size of our clinical trials, which could significantly delay commercialization and require significantly greater expenditures.

If any of our relationships with these third-party CROs or clinical sites terminate, we may not be able to enter into arrangements with alternative CROs or clinical sites. If CROs do not successfully carry out their contractual duties or obligations or meet expected deadlines, if they need to be replaced or if the quality or accuracy of the clinical data they obtain is compromised due to the failure to adhere to our clinical protocols, regulatory requirements or for other reasons, any such clinical trials may be extended, delayed or terminated, and we may not be able to obtain regulatory approval for or successfully commercialize our drug candidates. As a result, our financial results and the commercial prospects for our drug candidates would be harmed, our costs could increase and our ability to generate revenue could be delayed.

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Any termination or suspension of or delays in the commencement or completion of any necessary studies of our drug candidates for any indications could result in increased costs to us, delay or limit our ability to generate revenue and adversely affect our commercial prospects.

The commencement and completion of clinical studies can be delayed for a number of reasons, including delays related to:

•the FDA failing to grant permission to proceed and placing the clinical study on hold;

•subjects failing to enroll or remain in our trials at the rate we expect;

•a facility manufacturing any of our drug candidates being ordered by the FDA or other government or regulatory authorities to temporarily or permanently shut down due to violations of cGMP requirements or other applicable requirements, or cross-contaminations of product in the manufacturing process;

•any changes to our manufacturing process that may be necessary or desired;

•subjects choosing an alternative treatment for the indications for which we are developing our drug candidates, or participating in competing clinical studies;

•subjects experiencing severe or unexpected drug-related adverse effects;

•reports of similar technologies and products raising safety and/or efficacy concerns;

•third-party clinical investigators losing their licenses or permits necessary to perform our clinical trials, not performing our clinical trials on our anticipated schedule or employing methods consistent with the clinical trial protocol, cGCP requirements, or other third parties not performing data collection and analysis in a timely or accurate manner;

•inspections of clinical study sites by the FDA or IRBs finding regulatory violations that require us to undertake corrective action, result in suspension or termination of one or more sites or the imposition of a clinical hold on the entire study, or that prohibit us from using some or all of the data in support of our marketing applications;

•third-party contractors becoming debarred or suspended or otherwise penalized by the FDA or other government or regulatory authorities for violations of regulatory requirements, in which case we may need to find a substitute contractor, and we may not be able to use some or any of the data produced by such contractors in support of our marketing applications;

•one or more IRBs refusing to approve, suspending or terminating the study at an investigational site precluding enrollment of additional subjects, or withdrawing its approval of the trial; reaching agreement on acceptable terms with prospective 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;

•deviations of the clinical sites from trial protocols or dropping out of a trial;

•adding new clinical trial sites;

•the inability of the CRO to execute any clinical trials for any reason;

•government or regulatory delays or “clinical holds” requiring suspension or termination of a trial; and

•delays related to the impacts of pandemics, including slowdowns in enrollment or our ability to complete our clinical trials on our expected timeline.

Product development costs for our drug candidates will increase if we have delays in testing or approval or if we need to perform more or larger clinical studies than planned. Additionally, changes in regulatory requirements and policies may occur and we may need to amend study protocols to reflect these changes. Amendments may require us to resubmit our study protocols to the FDA and IRBs for reexamination, which may impact the costs, timing or successful completion of that study. If we experience delays in completion of, or if we, the FDA or other regulatory authorities, any IRBs, or other reviewing entities, or any of our clinical study sites suspend or terminate any of our clinical studies of our drug candidates, our commercial prospects may be materially harmed and our ability to generate product revenues will be delayed. Any delays in completing our clinical trials will increase our costs, slow down our 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, termination or suspension of, or a delay in the commencement or completion of, clinical studies may also ultimately lead to the denial of regulatory approval of our drug candidates. In addition, if one or more clinical studies are delayed, our competitors may be able to bring products to market before we do, and the commercial viability of our drug candidates could be significantly reduced.

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We may not be able to obtain or maintain orphan drug designation or exclusivity for our product candidates.

We may seek orphan drug designation in the U.S. and in the European Union for our product candidates. Upon receipt of regulatory approval, orphan drug status will provide us with seven years of market exclusivity in the U.S. under the Orphan Drug Act. However, there is no guarantee that the FDA will grant orphan drug designation for any of our drug candidates for any future indication, which would make us ineligible for the additional exclusivity and other benefits of orphan drug designation. Moreover, there can be no assurance that another company also holding orphan drug designation for the same indication, or which may receive orphan drug designation in the future will not receive approval prior to us, in which case our competitor would have the benefit of the seven years of market exclusivity, and we would be unable to commercialize our product for the same indication until the expiration of such seven-year period. Even if we are the first to obtain approval for the orphan drug indication, there are circumstances under which a competing product may be approved for the same indication during our seven-year period of exclusivity.

Under the Orphan Drug Act, the FDA may grant orphan drug designation to a drug intended to treat a rare disease or condition, which is generally a disease or condition that affects fewer than 200,000 individuals in the U.S. and for which there is no reasonable expectation that the cost of developing and making a drug available in the U.S. for this type of disease or condition will be recovered from sales of the product. Orphan drug designation must be requested before submitting an NDA or BLA. After the FDA grants orphan drug designation, the identity of the therapeutic agent and its potential orphan use are disclosed publicly by the FDA. Orphan designation does not convey any advantage in or shorten the duration of regulatory review and approval process. In addition to the potential period of exclusivity, orphan designation makes a company eligible for grant funding of up to $400,000 per year for four years to defray costs of clinical trial expenses, tax credits for clinical research expenses and potential exemption from the FDA application user fee.

If a product that has orphan designation subsequently receives the first FDA approval for the disease or condition for which it has such designation, the product is entitled to orphan drug exclusivity, which means the FDA may not approve any other applications to market the same drug for the same indication for seven years, except in limited circumstances, such as (i) the drug’s orphan designation is revoked; (ii) its marketing approval is withdrawn; (iii) the orphan exclusivity holder consents to the approval of another applicant’s product; (iv) the orphan exclusivity holder is unable to assure the availability of a sufficient quantity of drug; or (v) a showing of clinical superiority to the product with orphan exclusivity by a competitor product. If a drug designated as an orphan product receives marketing approval for an indication broader than what is designated, it may not be entitled to orphan drug exclusivity. There can be no assurance that we will receive orphan drug designation for any of our drug candidates for any additional indications if we elect to seek such designation. Even if orphan designation is granted it may be withdrawn by the FDA for non-compliance with regulations.

Third-party coverage and reimbursement and health-care cost containment initiatives and treatment guidelines may constrain our future revenues.

Our ability to successfully market our drug candidates will depend in part on the level of reimbursement that government health administration authorities, private health coverage insurers and other organizations provide for the cost of our products and related treatments. Countries in which our drug candidates are expected to be sold through reimbursement schemes under national health insurance programs frequently require that manufacturers and sellers of pharmaceutical products obtain governmental approval of initial prices and any subsequent price increases. In certain countries, including the U.S., government-funded and private medical care plans can exert significant indirect pressure on prices. We may not be able to sell our drug candidates profitably if adequate prices are not approved or coverage and reimbursement is unavailable or limited in scope. Increasingly, third-party payors attempt to contain health-care costs in ways that are likely to impact our development of products including:

•failing to approve or challenging the prices charged for health-care products;

•introducing reimportation schemes from lower priced jurisdictions;

•limiting both coverage and the amount of reimbursement for new therapeutic products;

•denying or limiting coverage for products that are approved by the regulatory agencies but are considered to be experimental or investigational by third-party payors; and

•refusing to provide coverage when an approved product is used in a way that has not received regulatory marketing approval.

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Our collaboration partners are conducting and may intend to conduct additional clinical trials for certain of our drug candidates at sites outside the U.S., and the FDA may not accept data from trials conducted in such locations or may require additional U.S.-based trials.

Our collaboration partners are currently conducting and may intend in the future to conduct clinical trials outside the U.S., particularly in China where CSPC is conducting a Phase 1 trial. Although the FDA may accept data from clinical trials conducted outside the U.S., acceptance of these data is subject to certain conditions imposed by the FDA. For example, the clinical trial must be well designed and conducted by qualified investigators in accordance with current good clinical practices, or GCPs, including review and approval by an independent ethics committee and receipt of informed consent from trial patients. The trial population must also adequately represent the U.S. population, and the data must be applicable to the U.S. population and U.S. medical practice in ways that the FDA deems clinically meaningful. Generally, the patient population for any clinical trial conducted outside of the U.S. must be representative of the population for which we intend to seek approval in the U.S. In addition, while these clinical trials are subject to applicable local laws, FDA acceptance of the data will be dependent upon its determination that the trials also comply with all applicable U.S. laws and regulations. There can be no assurance that the FDA will accept data from trials conducted outside of the U.S. If the FDA does not accept the data from our clinical trials conducted outside the U.S., it would likely result in the need for additional clinical trials, which would be costly and time-consuming and delay or permanently halt our ability to develop and market these or other drug candidates in the U.S. In addition, there are risks inherent in conducting clinical trials in jurisdictions outside the U.S. including:

•regulatory and administrative requirements of the jurisdiction where the trial is conducted that could burden or limit our ability to conduct clinical trials;

•foreign exchange fluctuations;

•manufacturing, customs, shipment and storage requirements;

•cultural differences in medical practice and clinical research; and

•the risk that patient populations in such trials are not considered representative as compared to patient populations in the U.S. and other markets.

Risks Relating to Our Intellectual Property Rights

It is difficult and costly to protect our intellectual property rights, and we cannot ensure the protection of these rights.

Our success will depend, in part, on maintaining and obtaining additional patent protection for our technologies, products and processes, successfully defending these patents against third-party challenges, and successfully enforcing these patents against third-party competitors. The patent positions of pharmaceutical companies can be highly uncertain and involve complex legal, scientific and factual questions for which important legal principles remain unresolved. Changes in either the patent laws or in interpretations of patent laws may diminish the value of our intellectual property. Accordingly, we cannot predict the breadth of claims that may be allowable in our pending applications or, the enforceability of our existing and future patents. Our pending patent applications may never be approved by U.S. or foreign patent offices and the existing patents and patent applications relating to our product candidates may be challenged, invalidated, or circumvented by third parties and may not protect us against competitors with similar products or technologies.

The degree of our current and future protection for our proprietary rights is uncertain, because legal means afford only limited protection and may not adequately protect our rights, permit us to gain or keep our competitive advantage, or provide us with any competitive advantage at all. For example, others have filed, and in the future are likely to file, patent applications covering products and technologies that are similar, identical, or competitive to our product candidates, or important to our business. We cannot be certain that any patents or patent application owned by a third party will not have priority over patents and patent applications filed by us, or that we will not be involved in interference, opposition or invalidity proceedings before U.S. or foreign patent offices.

We also rely on trade secrets to protect technology, especially in cases when we believe patent protection is not appropriate or obtainable. However, trade secrets are difficult to protect. While we require employees, academic collaborators, consultants, and other contractors to enter into confidentiality agreements, we may not be able to adequately protect our trade secrets or other proprietary or licensed information. Typically, research collaborators and scientific advisors have rights to publish data and information in which we may have rights. If we cannot maintain the confidentiality of our proprietary technology and other confidential information, our ability to receive patent protection and our ability to protect valuable information owned by us may be imperiled. Enforcing a claim that a third-party entity illegally obtained and is using any of our trade secrets is expensive and time-consuming, and the outcome is unpredictable. In addition, courts are sometimes less willing to protect trade secrets than patents. Moreover, our competitors may independently develop equivalent knowledge, methods, and know-how.

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If we fail to maintain or obtain additional patent protection or trade secret protection for our product candidates or our technologies, third parties could use our proprietary information, which could impair our ability to compete in the market and adversely affect our ability to generate revenues and attain profitability.

We may also rely on the trademarks we may develop to distinguish our products from the products of our competitors. We cannot guarantee that any trademark applications filed by us, or our business partners, will be approved. Third parties may also oppose such trademark applications, or otherwise challenge our use of the trademarks. In the event that the trademarks we use are successfully challenged, we could be forced to rebrand our products, which could result in loss of brand recognition, and could require us to devote resources to advertising and marketing new brands. Further, we cannot provide assurance that competitors will not infringe the trademarks we use, or that we will have adequate resources to enforce these trademarks.

We have in-licensed a portion of our intellectual property, and if we fail to comply with our obligations under these arrangements, we could lose such intellectual property rights or owe damages to the licensor of such intellectual property.

We are a party to license agreements with Jenrin, The Regents, and Milky Way BioPharma, LLC (“Milky Way”) pursuant to which we licensed exclusive worldwide rights to develop, manufacture and market drug candidates. We may enter into additional license agreements in the future. Certain of our in-licensed intellectual property covers, or may cover, potential cannabinoid and monoclonal antibody developmental candidates. Our existing license agreements impose, and we expect that future license agreements will impose, various diligence, milestone payment, royalty and other obligations on us. If there is any conflict, dispute, disagreement or issue of non-performance between us and our licensing partners regarding our rights or obligations under the license agreements, including any such conflict, dispute or disagreement arising from our failure to satisfy payment obligations under any such agreement, we may owe damages, our licensor may have a right to terminate the affected license, and our ability to utilize the affected intellectual property in our product discovery and development efforts and our ability to enter into collaboration or marketing agreements for an affected product candidate may be adversely affected. We have determined to no longer pursue development of the assets under our license agreement with Milky Way, and on January 25, 2024, we sent a notice of termination without reason to Milky Way. Once the termination of the Milky Way license is effective, the assets subject to the license will no longer be company assets.

We are a party to a license agreement with CSPC pursuant to which we licensed the exclusive rights in the U.S., Canada, the European Union (including the European Free Trade Area), the United Kingdom, and Australia to develop and market a drug candidate from CSPC. This agreement is important to our business, and we may enter into additional license agreements in the future. Certain of our in-licensed intellectual property covers, or may cover, potential antibodies, monoclonal antibody, and antibody drug conjugate developmental candidates. Our existing license agreement imposes, and we expect that future license agreements will impose, various diligence, milestone payment, royalty, and other obligations on us. If there is any conflict, dispute, disagreement or issue of non-performance between us and our licensing partners regarding our rights or obligations under the license agreements, including any such conflict, dispute or disagreement arising from our failure to satisfy payment obligations under any such agreement, we may owe damages, our licensor may have a right to terminate the affected license, and our ability to utilize the affected intellectual property in our product discovery and development efforts and our ability to enter into collaboration or marketing agreements for an affected product candidate may be adversely affected.

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Our product candidates may infringe the intellectual property rights of others, which could increase our costs and delay or prevent our development and commercialization efforts.

Our success depends in part on avoiding infringement of the proprietary technologies of others. The pharmaceutical industry has been characterized by frequent litigation regarding patent and other intellectual property rights. Identification of third-party patent rights that may be relevant to our proprietary technology is difficult because patent searching is imperfect due to differences in terminology among patents, incomplete databases, and the difficulty in assessing the meaning of patent claims. Additionally, because patent applications are maintained in secrecy until the application is published, we may be unaware of third-party patents that may be infringed by any of our product candidates. There may be certain issued patents and patent applications claiming subject matter that we may be required to license in order to research, develop or commercialize our product candidates, and we do not know if such patents and patent applications would be available to license on commercially reasonable terms, or at all. Any claims of patent infringement asserted by third parties would be time-consuming and may:

•result in costly litigation;

•divert the time and attention of our technical personnel and management;

•prevent us from commercializing a product until the asserted patent expires or is held finally invalid or not infringed in a court of law;

•require us to cease or modify our use of the technology and/or develop non-infringing technology; or

•require us to enter into royalty or licensing agreements.

Although no third party has asserted a claim of infringement against us, others may hold proprietary rights that could prevent our product candidates from being marketed. Any patent-related legal action against us claiming damages and seeking to enjoin commercial activities relating to our product candidates or our processes could subject us to potential liability for damages and require us to obtain a license to continue to manufacture or market our product candidates. We cannot predict whether we would prevail in any such actions or that any license required under any of these patents would be made available on commercially acceptable terms, if at all. In addition, we cannot be sure that we could redesign any product candidates or processes to avoid infringement, if necessary. Accordingly, an adverse determination in a judicial or administrative proceeding, or the failure to obtain necessary licenses, could prevent us from developing and commercializing our product candidates, which could harm our business, financial condition, and operating results.

A number of companies, including several major pharmaceutical companies, have conducted research in the same therapeutic areas as our company, which resulted in the filing of many patent applications in the same areas as our research. If we were to challenge the validity of these or any issued U.S. patent in court, we would need to overcome a statutory presumption of validity that attaches to every issued U.S. patent. This means that, in order to prevail, we would have to present clear and convincing evidence as to the invalidity of the patent’s claims.

If we were to challenge the validity of these or any issued U.S. patent in an administrative trial before the Patent Trial and Appeal Board in the U.S. Patent and Trademark Office, we would have to prove that the claims are unpatentable by a preponderance of the evidence. There is no assurance that a jury and/or court would find in our favor on questions of infringement, validity, or enforceability.

We may be subject to claims that we have wrongfully hired an employee from a competitor or that we or our employees have wrongfully used or disclosed alleged confidential information or trade secrets of their former employers.

As is commonplace in our industry, we employ individuals who were previously employed at other pharmaceutical companies, including our competitors or potential competitors. Although no claims against us are currently pending, we may be subject in the future to claims that our employees or prospective employees are subject to a continuing obligation to their former employers (such as non-competition or non-solicitation obligations) or claims that we or our employees have inadvertently or otherwise used or disclosed trade secrets or other proprietary information of their former employers. 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.

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We are, and may become, subject to claims that we or our employees have wrongfully used or disclosed alleged confidential information or trade secrets that, regardless of merit, could result in significant expense and loss of our intellectual property rights.

We have entered into and may in the future enter into non-disclosure and confidentiality agreements to protect the proprietary positions of third parties, such as outside scientific collaborators, CROs, third-party manufacturers, consultants, advisors, potential partners and other third parties. We may become subject to litigation where a third-party asserts that we or our employees inadvertently or otherwise breached the agreements and used or disclosed trade secrets or other information proprietary to the third parties. Defense of such matters, regardless of their merit, could involve substantial litigation expense and be a substantial diversion of employee resources from our business. We cannot predict whether we would prevail in any such actions. Moreover, intellectual property litigation, regardless of its outcome, may cause negative publicity and could prohibit us from developing, marketing or otherwise commercializing our product candidates. Failure to defend against any such claim could subject us to significant liability for monetary damages or prevent or delay our developmental and commercialization efforts, which could adversely affect our business. Even if we are successful in defending against these claims, litigation could result in substantial costs and be a distraction to our management team and other employees.

Parties making claims against us may be able to sustain the costs of complex intellectual property litigation more effectively than we can because they have substantially greater resources. Furthermore, 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. In addition, any uncertainties resulting from the initiation and continuation of any litigation could have a material adverse effect on our ability to raise additional funds or otherwise have a material adverse effect on our business, operating results, financial condition and prospects.

We may be subject to claims challenging the inventorship of our patents and other intellectual property.

Although we are not aware of any asserted third-party claims challenging inventorship on our patents or ownership of our intellectual property, we may in the future be subject to claims that former employees, strategic partners, commercial counterparties or other third parties associated with us or one of our predecessors in ownership have an interest in our patents or other intellectual property as an inventor or co-inventor. While it is our policy to require our employees and contractors who may be involved in the conception or development of intellectual property to execute agreements assigning such intellectual property to us, we cannot fully control the enforcement of these policies by third parties with which we contract, nor can we be certain that assignment agreements between us and our employees, between us and our counterparties, or between our counterparties and their employees or between our predecessors of ownership and their employees and counterparties, will effectively protect our interests as to any party who conceives or develops intellectual property that we regard as our own. Among other issues, the assignment of intellectual property rights may not be self-executing, the assignment agreements may be breached, or we may have disputes arise from conflicting obligations of consultants or others who are involved in developing our product candidates. As we approach potential commercialization of our product candidates, we are more closely analyzing all facts that we believe might be used to assert an inventorship claim against us. Determinations like these involve complex sets of fact and applications of sometimes-unsettled patent law, resulting in inherent uncertainties regarding ownership rights. Determining the history of development of certain of our intellectual property is made more difficult by the fact that certain of our intellectual property was developed by other companies for other indications before being acquired by us. Consequently, we cannot be sure that we have all the documentary records relevant to such an analysis.

If claims challenging inventorship are made against us, we may need to resort to litigation to resolve those claims. If we fail in defending against any such claims, in addition to paying monetary damages, we may lose valuable intellectual property rights, such as exclusive ownership of valuable intellectual property rights or the right to assert those rights against third-parties marketing competing products. Even if we are successful in defending against such claims, litigation could result in substantial costs and be a distraction to management and other employees.

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General Company-Related Risks

We will need to grow the size of our organization, and we may experience difficulties in managing this growth.

As of December 31, 2023, we had 19 full-time employees. As our development and commercialization plans and strategies develop, we will need to expand the size of our employee base for managerial, operational, sales, marketing, financial and other resources. Future growth would impose significant added responsibilities on members of management, including the need to identify, recruit, maintain, motivate, and integrate additional employees. In addition, our management may have to divert a disproportionate amount of its attention away from our day-to-day activities and devote a substantial amount of time to managing these growth activities. Our future financial performance and our ability to commercialize our drug candidates and our ability to compete effectively will depend, in part, on our ability to effectively manage our future growth.

Future capital raises may dilute our existing stockholders’ ownership and/or have other adverse effects on our operations.

If we raise additional capital by issuing equity securities, our existing stockholders’ percentage ownership will be reduced, and these stockholders may experience substantial dilution. We may also issue equity securities that provide for rights, preferences, and privileges senior to those of our common stock. If we raise additional funds by issuing debt securities, these debt securities would have rights senior to those of our common stock and the terms of the debt securities issued could impose significant restrictions on our operations, including liens on our assets. If we raise additional funds through collaborations and licensing arrangements, we may be required to relinquish some rights to our technologies or candidate products, or to grant licenses on terms that are not favorable to us.

If we are not successful in attracting and retaining highly qualified personnel, we may not be able to successfully implement our business strategy. In addition, the loss of the services of certain key employees, including Yuval Cohen, our Chief Executive Officer, Sean Moran, our Chief Financial Officer, and Dominic Smethurst, our Chief Medical Officer, would adversely impact our business prospects.

Our ability to compete in the highly competitive pharmaceuticals industry depends, in large part, upon our ability to attract highly qualified managerial, scientific, and medical personnel. In order to induce valuable employees to remain with us, we intend to provide employees with stock options that vest over time. The value to employees of stock options that vest over time will be significantly affected by movements in the price of our common stock that we will not be able to control and may at any time be insufficient to counteract more lucrative offers from other companies.

Our management team has expertise in many different aspects of drug development and commercialization. However, we will need to hire additional personnel as we further develop our drug candidates. Competition for skilled personnel in our market is intense and competition for experienced scientists may limit our ability to hire and retain highly qualified personnel on acceptable terms. Despite our efforts to retain valuable employees, members of our management, scientific and medical teams may terminate their employment with us on short notice. We have entered into employment agreements with certain of our executive officers. However, these employment arrangements provide for at-will employment, which means that any of our employees could leave our employment at any time, with or without notice. The loss of the services of any of our executive officers or other key employees could potentially harm our business, operating results, or financial condition. In particular, we believe that the loss of the services of Yuval Cohen, Ph.D., our Chief Executive Officer, Sean Moran, C.P.A., M.B.A., our Chief Financial Officer, and Dominic Smethurst, MA MRCP, our Chief Medical Officer, would have a material adverse effect on our business. Our success also depends on our ability to continue to attract, retain and motivate highly skilled junior, mid-level, and senior managers as well as junior, mid-level, and senior scientific and medical personnel.

Other pharmaceutical companies with which we compete for qualified personnel have greater financial and other resources, different risk profiles, and a longer history in the industry than we do. They also may provide more diverse opportunities and better chances for career advancement. Some of these characteristics may be more appealing to high-quality candidates than what we have to offer. If we are unable to continue to attract and retain high-quality personnel, the rate and success at which we can develop and commercialize product candidates would be limited.

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If product liability lawsuits are brought against us, we may incur substantial liabilities and may be required to limit commercialization of our drug candidates.

We face a potential risk of product liability as a result of the clinical testing of our drug candidates and will face an even greater risk if we commercialize our drug candidates. For example, we may be sued if any product we develop or any materials that we use in our products allegedly causes injury or is found to be otherwise unsuitable during product 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, and a breach of warranties. Claims could also be asserted under state consumer protection acts. If we cannot successfully defend ourselves against product liability claims, we may incur substantial liabilities or be required to limit commercialization of our drug candidates. Even successful defense would require significant financial and management resources. Regardless of the merits or eventual outcome, liability claims may result in:

•decreased demand for our drug candidates;

•injury to our reputation;

•withdrawal of clinical trial participants;

•costs to defend the related litigation;

•a diversion of management’s time and our resources;

•substantial monetary awards to trial participants or patients;

•product recalls, withdrawals or labeling, marketing or promotional restrictions;

•the inability to commercialize our drug candidates; and

•a decline in the value of our stock.

Our inability to obtain and retain sufficient product liability insurance at an acceptable cost to protect against potential product liability claims could prevent or inhibit the commercialization of products we develop. We intend to obtain product liability insurance covering our clinical trials. Although we will maintain such insurance, any claim that may be brought against us could result in a court judgment or settlement in an amount that is not covered, in whole or in part, by our insurance or that is in excess of the limits of our insurance coverage. Our insurance policies also have various exclusions, and we may be subject to a product liability claim for which we have no coverage. We may have to pay any amounts awarded by a court or negotiated in a settlement that exceed our coverage limitations or that are not covered by our insurance, and we may not have, or be able to obtain, sufficient capital to pay such amounts.

We may acquire businesses, assets, or products, or form strategic alliances, in the future, and we may not realize the benefits of such acquisitions.

We may acquire additional businesses, assets, or products, form strategic alliances or create joint ventures with third parties that we believe will complement or augment our existing business. If we acquire businesses with promising markets or technologies, we may not be able to realize the benefit of acquiring such businesses if we are unable to successfully integrate them with our existing operations and company culture. We may encounter numerous difficulties in developing, manufacturing, and marketing any new delay or prevent us from realizing their expected benefits or enhancing our business. We cannot assure you that, following any such acquisition, we will achieve the expected synergies to justify the transaction.

Significant disruptions of information technology systems or breaches of data security could materially adversely affect our business, results of operations and financial condition.

We collect and maintain information in digital form that is necessary to conduct our business, and we are increasingly dependent on information technology systems and infrastructure to operate our business. In the ordinary course of our business, we collect, store, and transmit confidential information, including intellectual property, proprietary business information and personal information. It is critical that we do so in a secure manner to maintain the confidentiality and integrity of such confidential information. We have established physical, electronic, and organizational measures to safeguard and secure our systems to prevent a data compromise, and rely on commercially available systems, software, tools, and monitoring to provide security for our information technology systems and the processing, transmission and storage of digital information. We have also outsourced our information technology infrastructure, and as a result a number of third-party vendors may or could have access to our confidential information. Our internal information technology systems and infrastructure, and those of our current and any future collaborators, contractors, and consultants and other third parties on which we rely, are vulnerable to damage from computer viruses, malware, natural disasters, terrorism, war, telecommunication and electrical failures, cyber-attacks or cyber-intrusions over the Internet, attachments to emails, persons inside our organization, or persons with access to systems inside our organization.

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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. In addition, the prevalent use of mobile devices that access confidential information increases the risk of data security breaches, which could lead to the loss of confidential information or other intellectual property. The costs to us to mitigate network security problems, bugs, viruses, worms, malicious software programs and security vulnerabilities could be significant, and while we have implemented security measures to protect our data security and information technology systems, our efforts to address these problems may not be successful, and these problems could result in unexpected interruptions, delays, cessation of service and other harm to our business and our competitive position. If such an event were to occur and cause interruptions in our operations, it could result in a material disruption of our product development programs. For example, the loss of clinical trial data from completed or ongoing or planned clinical trials could result in delays in our regulatory approval efforts and significantly increase our costs to recover or reproduce the data. Moreover, if a computer security breach affects our systems or results in the unauthorized release of personally identifiable information, our reputation could be materially damaged.

In addition, such a breach may require notification to governmental agencies, the media, or individuals pursuant to various federal and state privacy and security laws, if applicable, including the Health Insurance Portability and Accountability Act of 1996, as amended by the Health Information Technology for Clinical Health Act of 2009, and its implementing rules and regulations, as well as regulations promulgated by the Federal Trade Commission and state breach notification laws.

Under the EU regulation and notably the General Data Protection Regulation, or GDPR, No. 2016/679, which entered into force on May 25, 2018 and is applicable personal data that we process in relation to our presence in the EU, the offering of products or services to individuals in the EU or the monitoring of the behavior of individuals in the EU, we have also a legal responsibility to report personal data breaches to the competent supervisory authority. The EU data protection regulation includes a broad definition and a short deadline for the notification of personal data breaches, which may be difficult to implement in practice and requires that we implement robust internal processes. Under this regulation, we must report personal data breaches to the competent supervisory authority within 72 hours of the time we become aware of a breach "unless the personal data breach is unlikely to result in a risk to the right and freedoms of natural persons" (Article 33 of the GDPR). In addition, the GDPR requires that we communicate the breach to the Data Subject if the breach is "likely to result in a high risk to the rights and freedoms of natural persons" (Article 34 of the GDPR). In order to fulfill these requirements, we have to implement specific internal processes to be followed in case of a personal data breach, which will allow us to (a) contain and recover the breach, (b) assess the risk to the data subjects, (c) notify, and possibly communicate the breach to the data subjects, (d) investigate and respond to the breach. The performance of these processes implies substantial costs in resources and time.

Moreover, as we may rely on third parties that will also process as processor the data for which we are a data controller—for example, in the context of the manufacturing of our drug candidates or for the conduct of clinical trials, we must contractually ensure that strict security measures, as well as appropriate obligations including an obligation to report in due delay any security incident are implemented, in order to allow us fulfilling our own regulatory requirements.

We would also be exposed to a risk of loss or litigation and potential liability for any security breach on personal data for which we are data controller. The costs of above-mentioned processes together with legal penalties, possible compensation for damages and any resulting lawsuits arising from a breach may be extensive and may have a negative impact on reputation and materially adversely affect our business, results of operations and financial condition.

Changes in geopolitical conditions, U.S.-China trade relations and other factors beyond our control may adversely impact our business and operating results.

Our operations and performance depend, in part, on global and regional economic and geopolitical conditions, given our current third-party license agreement with CSPC, which is headquartered in China. Changes in U.S.-China trade policies, and a number of other economic and geopolitical factors both in China and abroad could have a material adverse effect on our business, financial condition, results of operations or prospects. Such factors may include:

•instability in political or economic conditions, such as inflation, recession, foreign currency exchange restrictions and devaluations, restrictive governmental controls on the movement and repatriation of earnings and capital, and actual or anticipated military or political conflicts, particularly in emerging markets;

•expanded jurisdiction of the Committee for Foreign Investment in the U.S. (CFIUS); and

•intergovernmental conflicts or actions, such as armed conflict, trade wars, retaliatory tariffs, and acts of terrorism or war.

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As a result of these events, our ability to obtain data or regulatory support from our China-based licensing partner may be limited or adversely affected, and we may ourselves be subject to sanctions, diminished public perception and operational constraints.

Disruptions in the global economy and supply chains may have a material adverse effect on our business, financial condition and results of operations.

The disruptions to the global economy in 2020 and into 2021 have impeded global supply chains, resulting in longer lead times and also increased critical component costs and freight expenses. We have taken and may have to take steps to minimize the impact of these disruptions in lead times and increased costs by working closely with our suppliers and other third parties on whom we rely for the conduct of our business. Despite the actions we have undertaken or may have to undertake to minimize the impacts from disruptions to the global economy, there can be no assurances that unforeseen future events in the global supply chain will not have a material adverse effect on our business, financial condition and results of operations.

Furthermore, inflation can adversely affect us by increasing the costs of clinical trials, the research and development of our product candidates, as well as administration and other costs of doing business. We may experience increases in the prices of labor and other costs of doing business. In an inflationary environment, cost increases may outpace our expectations, causing us to use our cash and other liquid assets faster than forecasted. If this happens, we may need to raise additional capital to fund our operations, which may not be available in sufficient amounts or on reasonable terms, if at all, sooner than expected.

Adverse global conditions, including economic uncertainty, may negatively impact our financial results.

Global conditions, dislocations in the financial markets, any negative financial impacts affecting U.S. as a result of tax reform or changes to existing trade agreements or tax conventions, may adversely impact our business.

In addition, the global macroeconomic environment could be negatively affected by, among other things, pandemics or epidemics, instability in global economic markets, increased U.S. trade tariffs and trade disputes with other countries, instability in the global credit markets, supply chain weaknesses, instability in the geopolitical environment as a result of the withdrawal of the United Kingdom from the European Union, the Russian invasion of Ukraine and other political tensions, and foreign governmental debt concerns. Such challenges have caused, and may continue to cause, uncertainty and instability in local economies and in global financial markets.

Risks Related to our Common Stock

An active, liquid trading market for our common stock may not be sustained.

Presently, our common stock is traded on The Nasdaq Capital Market, or Nasdaq, and an investment in our company may require a long-term commitment, with no certainty of return. If we are unable to maintain an active, liquid active trading market:

•investors may have difficulty buying and selling or obtaining market quotations;

•market visibility for shares of our common stock may be limited; and

•a lack of visibility for shares of our common stock may have a depressive effect on the market price for shares of our common stock.

The lack of an active market could impair your ability to sell your shares at the time you wish to sell them or at a price that you consider reasonable. The lack of an active market may also reduce the fair market value of your shares. An inactive market may also impair our ability to raise capital to continue to fund operations by selling shares and may impair our ability to acquire additional intellectual property assets by using our shares as consideration.

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We are currently listed on The Nasdaq Capital Market. If we are unable to maintain listing of our securities on The Nasdaq Capital Market or any stock exchange, our stock price could be adversely affected and the liquidity of our stock and our ability to obtain financing could be impaired and it may be more difficult for our stockholders to sell their securities.

Although our common stock is currently listed on The Nasdaq Capital Market, we may not be able to continue to meet the exchange’s minimum listing requirements or those of any other national exchange. If we are unable to maintain listing on Nasdaq or if a liquid market for our common stock does not develop or is sustained, our common stock may remain thinly traded.

The Listing Rules of Nasdaq require listing issuers to comply with certain standards in order to remain listed on its exchange. If, for any reason, we should fail to maintain compliance with these listing standards and Nasdaq should delist our securities from trading on its exchange and we are unable to obtain listing on another national securities exchange, a reduction in some or all of the following may occur, each of which could have a material adverse effect on our stockholders:

•the liquidity of our common stock;

•the market price of our common stock;

•our ability to obtain financing for the continuation of our operations;

•the number of institutional and general investors that will consider investing in our common stock;

•the number of investors in general that will consider investing in our common stock;

•the number of market makers in our common stock;

•the availability of information concerning the trading prices and volume of our common stock; and

•the number of broker-dealers willing to execute trades in shares of our common stock.

Our failure to maintain compliance with Nasdaq’s continued listing requirements could result in the delisting of our common stock.

Our common stock is currently listed for trading on The Nasdaq Capital Market. We must satisfy the continued listing requirements of The Nasdaq Stock Market LLC ("Nasdaq") to maintain the listing of our common stock on The Nasdaq Capital Market.

On November 10, 2023, we received a notice from the Listing Qualifications Staff (the “Staff”) of Nasdaq indicating that we were not in compliance with the $2.5 million minimum stockholders’ equity requirement for continued listing of our common stock on The Nasdaq Capital Market, as set forth in Nasdaq Listing Rule 5550(b)(1) (the “Minimum Stockholders’ Equity Rule”) because our reported stockholders’ equity of $311,016 in our Quarterly Report on Form 10-Q for the period ended September 30, 2023 was below the required minimum of $2.5 million, and because, as of November 9, 2023 we did not meet the alternative compliance standards relating to the market value of listed securities of $35 million or net income from continuing operations of $500,000 in the most recently completed fiscal year or in two of the last three most recently completed fiscal years.

We submitted a plan of compliance to Nasdaq on December 26, 2023. On January 8, 2024, the Staff notified us that that it granted an extension until May 8, 2024 to regain compliance, conditioned upon achievement of certain milestones included in the plan of compliance previously submitted to the Staff, including a plan to raise additional capital.

On February 8, 2024, we received a notice from the Staff that we had regained compliance with the alternative continued listing standard because our market value of listed securities was $35 million or greater (the “Minimum Market Value Requirement”) for at least 10 consecutive business days and that the matter was closed.

There can be no assurance that we will continue to maintain compliance with the Minimum Stockholders' Equity Rule, the Minimum Market Value Requirement, or other Nasdaq listing requirements. A delisting could substantially decrease trading in our common stock, adversely affect the market liquidity of our common stock as a result of the loss of market efficiencies associated with Nasdaq and the loss of federal preemption of state securities laws, adversely affect our ability to obtain financing on acceptable terms, if at all, and may result in the potential loss of confidence by investors, suppliers, customers and employees and fewer business development opportunities. Additionally, the market price of our common stock may decline further, and stockholders may lose some or all of their investment.

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The market price of our common stock may be significantly volatile.

The market price for our common stock may be volatile and subject to wide fluctuations in response to factors including the following:

•actual or anticipated fluctuations in our quarterly or annual operating results;

•changes in financial or operational estimates or projections;

•conditions in markets generally;

•changes in the economic performance or market valuations of companies similar to ours; and

•general economic or political conditions in the U.S. or elsewhere.

In particular, the market prices of biotechnology companies like ours have been highly volatile due to factors, including, but not limited to:

•any delay or failure to conduct a clinical trial for our product or receive approval from the FDA and other regulatory agencies;

•developments or disputes concerning a company’s intellectual property rights;

•technological innovations of such companies or their competitors;

•changes in market valuations of similar companies;

•announcements by such companies or their competitors of significant contracts, acquisitions, strategic partnerships, joint ventures, capital commitments, new technologies, or patents; and

•failure to complete significant transactions or collaborate with vendors in manufacturing a product.

The securities market has from time-to-time experienced significant price and volume fluctuations that are not related to the operating performance of particular companies. These market fluctuations may also materially and adversely affect the market price of shares of our common stock.

Future sales of shares by existing stockholders could cause our stock price to decline.

Sales of a substantial number of shares of our common stock in the public market could occur at any time. These sales, or the perception in the market that the holders of a large number of shares of common stock intend to sell shares, could reduce the market price of our common stock.

As of December 31, 2023, we had outstanding options to purchase an aggregate of 708,762 shares of our common stock at a weighted average exercise price of $63.96 per share, 17,911 shares of common stock issuable upon the vesting of restricted stock units, and warrants to purchase an aggregate of 50,207 shares of our common stock at a weighted average exercise price of $283.81 per share. The exercise of such outstanding options and warrants and vesting of restricted stock units will result in further dilution of your investment. If our existing stockholders sell substantial amounts of our common stock in the public market, or if the public perceives that such sales could occur, this could have an adverse impact on the market price of our common stock, even if there is no relationship between such sales and the performance of our business.

We do not currently intend to pay dividends on our common stock in the foreseeable future, and consequently, your ability to achieve a return on your investment will depend on appreciation in the price of our common stock.

We have never declared or paid cash dividends on our common stock and do not anticipate paying any cash dividends to holders of our common stock in the foreseeable future. Consequently, investors must rely on sales of their common stock after price appreciation, which may never occur, as the only way to realize any future gains on their investments. There is no guarantee that shares of our common stock will appreciate in value or even maintain the price at which our investors have purchased their shares.

If we fail to maintain effective internal controls, we may not be able to report financial results accurately or on a timely basis, or to detect fraud, which could have a material adverse effect on our business or share price.

We are required, pursuant to Section 404 of the Sarbanes-Oxley Act, to furnish a report by our management on, among other things, the effectiveness of our internal control over financial reporting. This assessment will need to include disclosure of any material weaknesses identified by our management in our internal control over financial reporting. A material weakness is a deficiency, or combination of deficiencies, in internal control over financial reporting such that there is a reasonable possibility that a material misstatement of annual or interim financial statements will not be prevented or detected on a timely basis.

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Effective internal control over financial reporting is necessary for us to provide reliable and timely financial reports and, together with adequate disclosure controls and procedures, are designed to reasonably detect and prevent fraud. Any failure to implement required new or improved controls, or difficulties encountered in their implementation could cause us to fail to meet our reporting obligations. Undetected material weaknesses in our internal control over financial reporting could lead to financial statement restatements and require us to incur the expense of remediation. In May 2023, in connection with the preparation of our interim financial statements for the period ended March 31, 2023, we determined that our disclosure controls and procedures were not effective due to a material weakness. The material weakness related to our failure to maintain an effective control environment over the internal control activities to ensure the processing of and reporting of accruals associated with upfront payments and issue fees in licensing agreements were complete, accurate and timely. Based upon, and as of the date of, this evaluation, our Chief Executive Officer and our Chief Financial Officer concluded that the material weakness has been remediated and our disclosure controls and procedures as of December 31, 2023 are effective.

We do not expect that our disclosure controls or internal control over financial reporting will prevent or detect all errors or all fraud. We may in the future discover other weaknesses in our system of internal control over financial reporting that could result in a material misstatement of our financial statements. A control system, no matter how well designed and operated, can provide only reasonable, not absolute, assurance that the control system’s objectives will be met. Because of the inherent limitations in all control systems, no evaluation of controls can provide absolute assurance that misstatements due to error or fraud will not occur or that all control issues and instances of fraud will be detected. If we identify additional material weaknesses in our internal controls, investors could lose confidence in the reliability of our financial statements, the market price of our stock could decline and we could be subject to sanctions or investigations by The Nasdaq Stock Market, the SEC or other regulatory authorities. Failure of our control systems to detect or prevent error or fraud could materially adversely impact us.

We may be unable to complete our analysis of our internal controls over financial reporting in a timely manner, or these internal controls may not be determined to be effective, which may adversely affect investor confidence in our company and, as a result, the value of our common stock.

We may not be able to complete our evaluation and testing of our internal control over financial reporting and any required remediation in a timely fashion. During the evaluation and testing process, if we identify one or more material weaknesses in our internal control over financial reporting, we will be unable to assert that our internal controls are effective.

If we are unable to assert that our internal control over financial reporting is effective, or, if applicable, our independent registered public accounting firm is unable to express an opinion on the effectiveness of our internal controls, we could lose investor confidence in the accuracy and completeness of our financial reports, which would cause the price of our common stock to decline, and we may be subject to investigation or sanctions by the SEC. We will also be required to disclose changes made in our internal control and procedures on a quarterly basis.

If we identify a material weakness, our remediation efforts may not enable us to avoid a material weakness in our internal control over financial reporting in the future. Any of the foregoing occurrences, should they come to pass, could negatively impact the public perception of our company, which could have a negative impact on our stock price.

Upon dissolution of our company, you may not recoup all or any portion of your investment.

In the event of a liquidation, dissolution or winding-up of our company, whether voluntary or involuntary, the proceeds and/or assets of our company remaining after giving effect to such transaction, and the payment of all of our debts and liabilities and distributions required to be made to holders of any outstanding preferred stock will then be distributed to the stockholders of common stock on a pro rata basis. There can be no assurance that we will have available assets to pay to the holders of common stock, or any amounts, upon such a liquidation, dissolution or winding-up of our Company. In this event, you could lose some or all of your investment.

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Our ability to use our net operating loss carryforwards and certain other tax attributes may be limited.

We have incurred substantial losses during our history and do not expect to become profitable in the near future, and we may never achieve profitability. Unused federal net operating losses for tax years beginning before January 1, 2018 may be carried forward to offset future taxable income, if any, until such unused net operating losses expire. Under legislation enacted in 2017, informally titled the Tax Cuts and Jobs Act, or the Tax Act, as modified by legislation enacted on March 27, 2020, entitled the Coronavirus Aid, Relief, and Economic Security Act, or the CARES Act, federal net operating losses incurred in tax years beginning after December 31, 2017, can be carried forward indefinitely, but the deductibility of such federal net operating losses in tax years beginning after December 31, 2020 is limited to 80% of taxable income. In addition, as a result of our merger in April 2014 with Corbus Pharmaceuticals, Inc., our wholly-owned subsidiary, our ability to utilize our federal net operating loss, carryforwards and federal tax credit prior to that date may be limited under Sections 382 of the Internal Revenue Code. The limitations apply if an “ownership change,” as defined by Section 382, occurs. Generally, an ownership change occurs if the percentage of the value of the stock that is owned by one or more direct or indirect “five percent shareholders” increases by more than 50 percentage points over their lowest ownership percentage at any time during the applicable testing period (typically three years). In addition, future changes in our stock ownership, which may be outside of our control, may trigger an “ownership change” and, consequently, Section 382 limitations. As a result, if we earn net taxable income, our ability to use our pre-change net operating loss carryforwards and other tax attributes to offset U.S. federal taxable income may be subject to limitations, which could potentially result in increased future tax liability to us.

Legislation or other changes in U.S. tax law could adversely affect our business and financial condition.

The rules dealing with U.S. federal, state, and local income taxation are constantly under review by persons involved in the legislative process and by the Internal Revenue Service and the U.S. Treasury Department. Changes to tax laws (which changes may have retroactive application) could adversely affect us or holders of our common stock. In recent years, many changes have been made to applicable tax laws and changes are likely to continue to occur in the future. For example, the Tax Act made significant changes to corporate taxation, including reduction of the corporate tax rate from a top marginal rate of 35% to a flat rate of 21%; limitation of the tax deduction for interest expense to 30% of adjusted earnings (except for certain small businesses); and, subject to certain changes in tax law made by the CARES Act as discussed above, limitation of the deduction of net operating losses generated in tax years beginning after December 31, 2017 to 80% of taxable income, indefinite carryforward of net operating losses generated in tax years after 2018 and elimination of net operating loss carrybacks generated in tax years ending after December 31, 2017; changes in the treatment of offshore earnings regardless of whether they are repatriated; current inclusion in U.S. federal taxable income of certain earnings of controlled foreign corporations, mandatory capitalization of research and development expenses beginning in 2022; immediate deductions for certain new investments instead of deductions for depreciation expense over time; further deduction limits on executive compensation; and modifying, repealing and creating many other business deductions and credits, including the reduction in the orphan drug credit from 50% to 25% of qualifying expenditures. We continue to examine the impact this tax reform legislation may have on our business. Notwithstanding the reduction in the corporate income tax rate, the overall impact of the Tax Act is uncertain and our business and financial condition could be adversely affected. The impact of this tax reform on holders of our common stock is also uncertain and could be adverse. This periodic report does not discuss any such tax legislation or the manner in which it might affect us or our stockholders in the future. We urge our stockholders to consult with their legal and tax advisors with respect to such legislation. In addition, the CARES Act included certain changes in tax law intended to stimulate the U.S. economy in light of the COVID-19 outbreak, including temporary beneficial changes to the treatment of net operating losses, interest deductibility limitations and payroll tax matters.

It cannot be predicted whether, when, in what form, or with what effective dates, new tax laws may be enacted, or regulations and rulings may be enacted, promulgated or issued under existing or new tax laws, which could result in an increase in our or our shareholders’ tax liability or require changes in the manner in which we operate in order to minimize or mitigate any adverse effects of changes in tax law or in the interpretation thereof.

Our certificate of incorporation, as amended, allows for our board to create new series of preferred stock without further approval by our stockholders, which could adversely affect the rights of the holders of our common stock.

Our Board of Directors has the authority to fix and determine the relative rights and preferences of preferred stock. We anticipate that our Board of Directors will have the authority to issue up to 10,000,000 shares of our preferred stock without further stockholder approval. As a result, our Board of Directors could authorize the issuance of a series of preferred stock that would grant to holders the preferred right to our assets upon liquidation and the right to receive dividend payments before dividends are distributed to the holders of common stock. In addition, our Board of Directors could authorize the issuance of a series of preferred stock that has greater voting power than our common stock or that is convertible into our common stock, which could decrease the relative voting power of our common stock or result in dilution to our existing stockholders.

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Item 1B. UNRESOLVED STAFF COMMENTS

Not applicable.

Item 1C. CYBERSECURITY

We have certain processes for assessing, identifying and managing cybersecurity risks, which are built into our overall information technology and cybersecurity functions. By fully outsourcing our IT environment and placing it within expert third-party software-as-a-service, human resource, and clinical providers our primary means of avoiding cyber risk is not having sensitive data within our enterprise. All third parties are managed by our team, and we review our vendors to ensure that they have risk management procedures in place, including physical, procedural, and technical safeguards (such as: response plans, regular tests on the systems, third-party auditing, incident simulations and routine review of appropriate policies and procedures to identify risks and refine security practices). Our Director of IT Operations and Security is responsible for vendor management regarding our vendor risk experience and reports directly to our Chief Financial Officer. We track security risk as a company and review it annually at the senior management level.

We do not believe that there are currently any known risks from cybersecurity threats that are reasonably likely to materially affect us or our business strategy, results of operations or financial condition. As needed, the Audit Committee of our Board of Directors provides oversight over cybersecurity risk and provides updates to the Board of Directors regarding such oversight. The Audit Committee receives periodic updates from management regarding cybersecurity matters and is notified between such updates regarding significant new cybersecurity threats or incidents.

To deter and detect cyber threats, we annually provide our employees, including part-time and temporary employees, with a data protection, cybersecurity and incident response and prevention training and compliance program, which covers timely and relevant topics, such as social engineering, phishing, password protection, confidential data protection, asset use and mobile security, and educates employees on the importance of reporting security incidents immediately. We also use technology-based tools that are designed to mitigate cybersecurity risks and to bolster our employee-based cybersecurity programs.

Item 2. PROPERTIES

Our principal offices are located at 500 River Ridge Drive, Norwood, MA 02062 and consists of 63,256 square feet of leased office space at December 31, 2023. The lease term for this office space ends on November 30, 2026. Effective August 26, 2021, we entered into a sublease agreement with a third party to sublease 12,112 square feet of the first floor. The sublease term is scheduled to end on October 31, 2026, however, we are in the process of terminating the sublease.

Item 3. LEGAL PROCEEDINGS

We are not currently subject to any material legal proceedings. However, we may from time to time become a party to various legal proceedings arising in the ordinary course of our business.

Item 4. MINE SAFETY DISCLOSURES

Not applicable.

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PART II

Item 5. MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES

Market Information

Our common stock is currently listed on The Nasdaq Capital Market under the symbol “CRBP.” Our shares of common stock began trading on The Nasdaq Global Market under the symbol “CRBP” effective April 16, 2015. Effective July 8, 2022, our shares of common stock were transferred to The Nasdaq Capital Market under the same symbol “CRBP.”

Dividends

We have never declared or paid cash dividends on our common stock. We do not intend to declare or pay cash dividends on our common stock for the foreseeable future, but currently intend to retain any future earnings to fund the development and growth of our business. The payment of cash dividends, if any, on the common stock will rest solely within the discretion of our Board of Directors and will depend, among other things, upon our earnings, capital requirements, financial condition, and other relevant factors.

Record Holders

As of March 8, 2024 there are approximately 87 record holders of shares of our common stock.

Item 6. [RESERVED]

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Item 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The following discussion and analysis of our financial condition and results of operations should be read together with our financial statements and the related notes and the other financial information included elsewhere in this Annual Report. This discussion contains forward-looking statements that involve risks and uncertainties. Our actual results could differ materially from those anticipated in these forward-looking statements as a result of various factors, including those discussed below and elsewhere in this Annual Report, particularly those under “Risk Factors.”

Overview

We are a precision oncology company with a diversified portfolio and are committed to helping people defeat serious illness by bringing innovative scientific approaches to well-understood biological pathways. Our pipeline is comprised of two experimental drugs targeting solid tumors: CRB-701, a next-generation ADC that targets the expression of Nectin-4 on cancer cells to release a cytotoxic payload and CRB-601, an anti-integrin monoclonal antibody that blocks the activation of TGFβ expressed on cancer cells. The pipeline also includes CRB-913, a highly peripherally restricted CB1 receptor inverse agonist for the treatment of obesity.

Our oncology pipeline:

•CRB-701 is a next-generation ADC that targets the expression of Nectin-4 on cancer cells to release a cytotoxic payload. In February 2023, we obtained a license from CSPC to develop and commercialize the drug in the U.S., Canada, the European Union (including the European Free Trade Area), the United Kingdom, and Australia. The IND application for CRB-701 was cleared by the U.S. FDA in 2022, and the drug is currently being investigated by CSPC in a Phase 1 dose-escalation clinical trial in patients with advanced solid tumors in China. On January 26, 2024, we presented data from the Phase 1 dose-escalation trial in China for the first eighteen patients reflective of the first six dose cohorts. The data was presented at ASCO-GU. The emerging clinical data shows that CRB-701 was well-tolerated and demonstrated an ORR of 43% and a DCR of 71% in the seven patients who received doses predicted to be therapeutically relevant. We are on schedule to bridge data from this Phase 1 clinical trial in China to commence a Phase 1 clinical trial in the U.S. during the first quarter of 2024.

•CRB-601 is a potent and selective anti-αvβ8 monoclonal antibody that blocks the activation of latent TGFβ found on cancer cells. In pre-clinical models, CRB-601 demonstrates enhanced anti-tumor activity when combined with an anti-PD-1 checkpoint inhibitor compared to each single agent on its own. The data suggests that blockade of latent TGFβ production by CRB-601 can lead to changes in immune cell infiltration in the tumor microenvironment thus potentially enhancing the benefit of PD-1 blockade. CRB-601 is being developed as a potential treatment for patients with solid tumors in combination with existing therapies, including checkpoint inhibitors. On January 9, 2024, we announced that the FDA cleared the IND for CRB-601 and we expect to enroll the first patient in a Phase 1 study in the summer of 2024.

Our obesity pipeline:

•CRB-913 is a second-generation highly peripherally restricted CB1 receptor inverse agonist designed to treat obesity. In a DIO mouse model, CRB-913 demonstrates a reduction in body weight, body fat content, leptinemia, insulin resistance, liver triglycerides, liver fat deposits, and improvements in liver histology. These outcomes were further improved when CRB-913 was used in combination with incretin analogs (tirzepatide, semaglutide, or liraglutide). We are currently conducting IND enabling studies and we expect to file an IND in the fourth quarter of 2024.

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Financial Operations Overview

We are a precision oncology company and have not generated any revenues from the sale of products. We do not expect to generate revenue from product sales unless and until we successfully complete development and obtain regulatory approval for the marketing of one of our product candidates, which we expect will take a number of years and is subject to significant uncertainty. We have never been profitable and at December 31, 2023, we had an accumulated deficit of approximately $436,684,000. Our net losses for the years ended December 31, 2023 and December 31, 2022 were approximately $44,603,000 and $42,347,000, respectively.

We expect to continue to incur significant expenses for the foreseeable future. We expect our expenses to decline in 2024 as compared to 2023 as the upfront license payment to purchase CRB-701 in 2023 of $7,500,000 will not recur and we incurred significant expenses in 2023 to manufacture CRB-601 for clinical studies. We will continue to incur significant operating losses as we move into the clinical phase and, accordingly, we will need additional financing to support our continuing operations. We will seek to fund our operations through public or private equity, debt financings or other sources, which may include government grants and collaborations with third parties. Adequate additional financing may not be available to us on acceptable terms, or at all. Our failure to raise capital as and when needed would have a negative impact on our financial condition and our ability to pursue our business strategy. We will need to generate significant revenues to achieve profitability, and we may never do so.

We expect to continue to incur operating losses for at least the next several years in connection with our ongoing activities, as we:

•conduct pre-clinical and clinical trials for our product candidates;

•continue our research and development efforts; and

•manufacture and purchase drugs for clinical studies.

Recent Developments

Open Market Sale Agreement

On May 31, 2023, we entered into the Open Market Sale Agreement with Jefferies pursuant to which Jefferies is serving as the sales agent to sell shares of our common stock through an “at-the-market offering.” Since May 31, 2023, we have sold shares of our common stock under the Open Market Sale Agreement to raise aggregate gross proceeds of approximately $114,000 through December 31, 2023 and approximately $21,237,000 through this filing.

On January 30, 2024, we delivered written notice to Jefferies suspending and terminating the prospectus supplement dated January 29, 2024 (the “ATM Prospectus Supplement”), related to our common stock issuable pursuant to the Open Market Sale Agreement, pursuant to the terms of the Open Market Sale Agreement. We will not make any sales of our securities pursuant to the Open Market Sale Agreement, unless and until a new shelf registration statement and prospectus supplement are filed. Other than the termination of the ATM Prospectus Supplement, the Open Market Sale Agreement remains in full force and effect.

Public Offering

On January 31, 2024, we entered into an underwriting agreement with Jefferies, as Representative of the Underwriters, relating to an underwritten public offering of 4,325,000 shares of our common stock at a price to the public of $19.00 per share. The Underwriters were also granted a 30-day option to purchase up to an additional 648,750 shares of common stock at the public offering price. On January 31, 2024, the Representative gave notice of the Underwriters’ election to exercise the option to purchase additional shares, in full. On February 2, 2024, we completed the public offering raising gross proceed of approximately $94,500,000 and net proceeds of $88,500,000 after deducting underwriting discounts and commissions and other estimated offering expenses payable by us.

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Critical Accounting Policies

Our consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the U.S. (“U.S. GAAP”). The preparation of these financial statements requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period.

On an ongoing basis, we evaluate our estimates and judgments for all assets and liabilities, including those related to accrued research and development expense, stock-based compensation expense, and operating lease right-of-use assets and liabilities. We base our estimates and judgments on historical experience, current economic and industry conditions and on various other factors that are believed to be reasonable under the circumstances. This forms the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions. See Note 3 “Significant Accounting Policies” to the consolidated financial statements included under Part II, Item 8 of this Annual Report on Form 10-K for information about our significant accounting policies.

We believe that full consideration has been given to all relevant circumstances that we may be subject to, and the consolidated financial statements accurately reflect our best estimate of the results of operations, financial position and cash flows for the periods presented.

Accrued Research and Development Expenses

As part of the process of preparing financial statements, we are required to estimate and accrue expenses, the largest of which are research and development expenses. This process involves: communicating with our applicable personnel to identify services that have been performed on our behalf and estimating the level of service performed and the associated cost incurred for the service when we have not yet been invoiced or otherwise notified of actual cost; estimating and accruing expenses in our financial statements as of each balance sheet date based on facts and circumstances known to us at the time; and periodically confirming the accuracy of our estimates with selected service providers and making adjustments, if necessary.

Examples of estimated research and development expenses that we accrue include:

•fees paid to CROs and research institutions in connection with pre-clinical studies;

•fees paid to contract manufacturers in connection with the production of drugs for studies and clinical trials;

•fees paid to CROs and research institutions in connection with conducting clinical studies; and

•professional service fees for consulting and related services.

We base our expense accruals related to pre-clinical and clinical activities on our estimates of the services performed pursuant to contracts with multiple research institutions and clinical research organizations that conduct and manage pre-clinical and clinical work on our behalf. The financial terms of these agreements vary from contract to contract and may result in uneven payment flows. Payments under some of these contracts depend on factors, such as the successful animal trials and the completion of study milestones. Our service providers invoice us monthly in arrears for services performed. In accruing service fees, we estimate the time period over which services will be performed and the level of effort to be expended in each period. If we do not identify costs that we have begun to incur, or if we underestimate or overestimate the level of services performed or the costs of these services, our actual expenses could differ from our estimates.

To date, we have not experienced significant changes in our estimates of accrued research and development expenses following each applicable reporting period. However, due to the nature of estimates, we cannot assure you that we will not make changes to our estimates in the future as we become aware of additional information regarding the status or conduct of our pre-clinical and clinical studies and other research activities.

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Stock-Based Compensation

Stock options are granted with an exercise price at no less than fair market value at the date of the grant. The stock options normally expire ten years from the date of grant. Stock option awards vest upon terms determined by our Board of Directors.

We recognize compensation costs resulting from the issuance of stock-based awards to employees, members of our Board of Directors and consultants. The fair value of each option grant was estimated as of the date of grant using the Black-Scholes option-pricing model. The fair value is amortized as compensation cost on a straight-line basis over the requisite service period of the awards, which is generally the vesting period. We estimate volatility by analyzing the volatility of the trading price of our common stock. We use historical data, as well as subsequent events occurring prior to the issuance of the consolidated financial statements, to estimate option exercise and employee forfeitures within the valuation model. The expected term of options granted to employees under our stock plans is based on the average of the contractual term (generally 10 years) and the vesting period (generally 48 months). The expected term of options granted under the 2014 Plan, all of which qualify as “plain vanilla” per SEC Staff Accounting Bulletin 107, is based on the average of the 6.25 years. For non-employee options, the expected term is the contractual term. The risk-free rate is based on the yield of a U.S. Treasury security with a term consistent with the option. We estimate the forfeiture rate at the time of grant and revise it, if necessary, in subsequent periods if actual forfeitures differ from those estimates. Forfeitures were estimated based on management’s expectation through industry knowledge and historical data. We have never paid dividends on our common stock and do not anticipate paying dividends on our common stock in the foreseeable future. Accordingly, we have assumed no dividend yield for purposes of estimating the fair value of our stock-based compensation.

The following assumptions were used to estimate the fair value of employee stock options granted using the Black-Scholes option pricing model for the years ended December 31, 2023 and 2022 is as follows:

	Year ended December 31,
	2023			2022
Risk free interest rate		3.82	%		1.99	%
Expected dividend yield		0	%		0	%
Expected term in years (employee options)		6.25			6.25
Expected volatility		101.47	%		98.08	%
Estimated forfeiture rate		15.63	%		12.43	%

Leases

We lease our office space. We determine if an arrangement is a lease at inception. Operating leases are included in operating lease right-of-use (“ROU”) assets and operating lease liabilities, current and noncurrent in our consolidated balance sheets. ROU assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments arising from the lease. ROU assets and liabilities are recognized at commencement date based on the present value of lease payments over the lease term. As our leases do not provide an implicit rate, we use an incremental borrowing rate based on the information available at commencement date in determining the present value of lease payments. This is the rate we would have to pay if borrowing on a collateralized basis over a similar term to each lease. The ROU asset also includes any lease payments made and excludes lease incentives. Lease expense for lease payments is recognized on a straight-line basis over the lease term.

We have subleased a portion of our leased facility under an agreement considered to be an operating lease according to U.S. GAAP. We have not been legally released from our primary obligations under the original lease and therefore it continues to account for the original lease as it did before commencement of the sublease. We will record both fixed and variable payments received from the sublessee in our statement of operations on a straight-line basis as an offset to rent expense.

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Recently Issued Accounting Pronouncements

Recent accounting pronouncements which may be applicable to us are described in Note 3 “Significant Accounting Policies” to our Consolidated Financial Statements included under Part II, Item 8 of this Annual Report on Form 10-K.

Results of Operations

Comparison of Year Ended 2023 to 2022

Revenue from Awards. No revenue from awards was recognized for the years ended December 31, 2023 and 2022 in accordance with U.S. GAAP. No revenue from licenses was recognized for the years ended December 31, 2023 and 2022.

No revenue from awards or licenses are expected in 2024.

Research and Development. Research and development expenses for the year ended December 31, 2023 totaled approximately $31,168,000, an increase of $15,031,000 over the $16,137,000 recorded for the year ended December 31, 2022. The increase in fiscal 2023 as compared to fiscal 2022 was primarily attributable to an increase in licensing costs of $7,500,000 associated with the CSPC License Agreement and $2,325,000 associated with the achievement of two development milestones under the UCSF License Agreement, as well as increases of $4,317,000 in manufacturing costs associated with the production and testing of CRB-601, $3,041,000 in pre-clinical and clinical costs to advance our pipeline to prepare for the start of clinical trials, and $1,309,000 in consulting and temporary employee costs to support various areas of regulatory, quality, manufacturing, and clinical operations. These increases are offset by a decrease in toxicology costs of $2,738,000 as a result of IND-enabling studies completed in the prior year for inclusion in the CRB-601 IND filing and a decrease in compensation costs of $1,328,000 as a result of reduced headcount.

Research and development expenses are expected to decrease in 2024 as upfront payments associated with licensing CRB-701 are not expected to recur and we incurred significant expenses in 2023 to manufacture CRB-601 for clinical studies.

During 2018, we formed subsidiaries in the United Kingdom and Australia and approximately 36% and 43% of research and development expenses recorded for the years ended December 31, 2023 and December 31, 2022 respectively were recorded in these entities.

General and Administrative. General and Administrative expenses for the year ended December 31, 2023 totaled approximately $13,910,000, a decrease of $4,789,000 from the $18,699,000 recorded for the year ended December 31, 2022. The decrease in fiscal 2023 as compared to fiscal 2022 was primarily attributable to decreases in stock-based compensation costs of $2,050,000 as stock options are being granted at lower current fair values as compared to earlier grants that are now fully vested, legal costs of $1,492,000 related to the litigation with Venn Therapeutics, LLC, $773,000 in reduced premiums associated with insurance policies, and $640,000 in consulting costs for various consultants who supported finance, business development, and information technology.

Litigation Settlement. There was no litigation settlement for the year ended December 31, 2023. Litigation Settlement expense for the year ended December 31, 2022 totaled $5,000,000 as a result of the settlement with Venn Therapeutics, LLC.

Other Income (Expense), Net. Other income (expense), net for 2023 was income of approximately $474,000 as compared to expense of approximately $2,511,000 recorded for 2022. The increase of $2,985,000 in 2023 as compared to 2022 was primarily attributable to receipt of refundable research and development credits from a foreign tax authority of approximately $2,632,000 related to the prior year that were not realized until 2023.

In addition to refundable research and development tax credits that were earned on certain research and development expenses incurred primarily outside of the U.S., other income (expense), net consists of interest income we earn on interest-bearing accounts, realized investment gains and losses, interest expense incurred on our outstanding debt, changes in derivative liabilities, and realized and unrealized foreign currency exchange gains and losses.

We expect other income (expense), net to increase in 2024 due to the receipt of the current year refundable research and development credits along with the application and receipt of next year's refundable research and development credits.

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Liquidity and Capital Resources

Since inception, we have experienced negative cash flows from operations. We have financed our operations primarily through sales of equity-related securities. At December 31, 2023, our accumulated deficit since inception was approximately $436,684,000.

At December 31, 2023, we had total current assets of approximately $23,546,000 and current liabilities of approximately $31,894,000 resulting in negative working capital of approximately $8,348,000. Of our total cash, cash equivalents, investments, and restricted cash of $21,576,000 at December 31, 2023, $17,804,000 was held within the U.S.

Net cash used in operating activities for the year ended December 31, 2023 was approximately $36,100,000 which includes a net loss of approximately $44,603,000, adjusted for non-cash expenses of approximately $4,409,000, principally related to stock-based compensation expense of $3,470,000, amortization of debt discount of $824,000, depreciation and amortization expense of $641,000, and net amortization on discount of investments of $506,000, and approximately $4,094,000 of cash used by net working capital items, principally related to the increases in accrued expenses of $5,031,000 and accounts payable of $1,028,000 and a decrease in operating lease right-of-use asset amortization of $821,000 offset by an increase in prepaid expenses of $1,470,000 and a decrease in operating lease liabilities of $1,281,000.

Cash provided by investing activities for the year ended December 31, 2023 totaled approximately $35,642,000, which was largely due to the proceeds from sales and maturities of investments, net of purchases.

Cash used in financing activities for the year ended December 31, 2023 totaled approximately $2,821,000, which related to the repayment of long-term borrowings of $2,821,000 in connection with our Loan and Security Agreement with K2HV.

We expect our cash, cash equivalents, and investments of approximately $20,906,000 at December 31, 2023 together with net proceeds raised from the sale of our common stock under the Open Market Sales Agreement and the January 2024 Public Offering of approximately $109,000,000 after deducting commissions and other offering expenses payable by us will be sufficient to meet our operating and capital requirements to support our operations through the first quarter of 2027, based on current planned expenditures.

We will need to raise significant additional capital to continue to fund operations, including pre-clinical and clinical costs for our product candidates. If we are unable to raise sufficient capital in the future, we may be required to undertake cost-cutting measures, including delaying or discontinuing certain clinical activities. We may seek to sell common stock, preferred stock, or convertible debt securities, enter into a credit facility or another form of third-party funding or seek other debt financing. In addition, we may seek to raise cash through collaborative agreements or from government grants. The sale of equity and convertible debt securities may result in dilution to our stockholders and certain of those securities may have rights senior to those of our common shares. If we raise additional funds through the issuance of preferred stock, convertible debt securities or other debt financing, these securities or other debt could contain covenants that would restrict our operations. Any other third-party funding arrangement could require us to relinquish valuable rights.

The source, timing and availability of any future financing will depend principally upon market conditions, and, more specifically, on the progress of our clinical development programs.

Funding may not be available when needed, at all, or on terms acceptable to us. Lack of necessary funds may require us, among other things, to delay, scale back or eliminate expenses including some or all of our planned clinical trials.

Contractual Obligations and Commitments

Our contractual obligations as of December 31, 2023 consist of our amended lease agreement (“February 2019 Lease Agreement”) for an aggregate total of 62,756 square feet of leased office space (“Total Premises”) through November 30, 2026. Total rent expense for the year ended December 31, 2023 was $1,700,005 and we do not expect any significant changes in future periods. In addition, we entered into a sublease agreement with a third party to sublease 12,112 square feet of our leased space. The sublease commenced on October 1, 2021 and was contracted to end October 31, 2026. Rent expense for the year ended December 31, 2023 was offset by $226,153 of sublease income. We are in the process of terminating the sublease agreement and do not expect any additional sublease income beyond the first quarter of 2024.

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We may enter into contracts in the normal course of business with clinical research organizations for clinical trials and clinical supply manufacturing and with vendors for pre-clinical research studies, research supplies and other services and products for operating purposes. These contracts generally provide for termination on notice, and therefore, we believe that our non-cancelable obligations under these agreements are not material. As of December 31, 2023, other than our leases, we had no material Contractual Obligations or Commitments that will affect our future liquidity.

Off-Balance Sheet Arrangements

We do not have any off-balance sheet arrangements that have or are reasonably likely to have a current or future effect on our financial condition, changes in financial condition, revenues or expenses, results of operations, liquidity, capital expenditures or capital resources that is material to investors, other than future royalty payments under development award agreements discussed as follows:

License Agreement with Jenrin

Pursuant to the terms of the Jenrin License Agreement, we are obligated to pay potential milestone payments to Jenrin totaling up to $18.4 million for each compound we elect to develop based upon the achievement of specified development and regulatory milestones. In addition, we are obligated to pay Jenrin royalties in the mid, single digits based on net sales of any Licensed Products, as defined in the Jenrin License Agreement, subject to specified reductions.

The Jenrin License Agreement terminates on a country-by-country and product-by-product basis upon the expiration of the royalty term for such product in such country. Each royalty term begins on the date of the first commercial sale of the licensed product in the applicable country and ends on the later of seven years from such first commercial sale or the expiration of the last to expire of the applicable patents in that country. The Jenrin License Agreement may be terminated earlier in specified situations, including termination for uncured material breach of the Jenrin License Agreement by either party, termination by Jenrin in specified circumstances, termination by us with advance notice and termination upon a party’s insolvency or bankruptcy.

License Agreement with Milky Way

Pursuant to the terms of the Milky Way License Agreement, we are obligated to pay potential milestone payments to Milky Way totaling up to $53.0 million based upon the achievement of specified development and regulatory milestones. In addition, we are obligated to pay Milky Way royalties in the lower, single digits based on net sales of any Licensed Products, as defined in the Milky Way License Agreement.

The Milky Way License Agreement will remain in effect on a Licensed Product-by-License Product and country-by-country basis, until the expiration of the Royalty Term of the Licensed Product in the country. The "Royalty Term" means the period beginning from the First Commercial Sale of the Licensed Product in the country until the expiration of the last-to-expire Valid Claim in any Licensor Patent in the country that covers the composition of matter of the Licensed Product, the manufacture of the Licensed Product in the country, or a method of use of the Licensed Product for an indication for which Regulatory Approval has been obtained in the country. The Milky Way License Agreement may be terminated earlier in specified situations, including termination for material breach or termination by us with advance notice. A notice of termination without reason was executed by us and sent to Milky Way BioPharma, LLC on January 25, 2024.

License Agreement with UCSF

Pursuant to the terms of the UCSF License Agreement, we are obligated to pay potential milestone payments to UCSF totaling up to $153.15 million based upon the achievement of specified development and regulatory milestones, excluding indication milestones for antibodies used for diagnostic products and services that will be an additional $50,000 for each new indication. In addition, we are obligated to pay UCSF royalties in the lower, single digits based on net sales of any Licensed Products, as defined in the UCSF License Agreement, and any diagnostic products and services.

The UCSF License Agreement will remain in effect until the expiration or abandonment of the last of the Patent Rights licensed. The Royalty Term is the duration of Patent Rights in that country covering the applicable Licensed Product or Licensed Services Sold in the country. The UCSF License Agreement may be terminated earlier in specified situations, including termination for material breach, termination by us with advance notice and termination upon a party's bankruptcy.

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License Agreement with CSPC

Pursuant to the terms of the CSPC License Agreement, we are obligated to pay potential milestone payments to CSPC totaling up to $130 million based upon the achievement of specified development and regulatory milestones and $555 million in potential commercial milestone payments. In addition, we are obligated to pay CSPC royalties in the low double digits based on net sales of any Licensed Products, as defined in the CSPC License Agreement.

The CSPC License Agreement will remain in effect on a Licensed Product and on a country-by-country basis, until the expiration of the Royalty Term of the Licensed Product in the country. The Royalty Term is the period beginning from the First Commercial Sale of the Licensed Product in the country until the later of the expiration of the last-to-expire Valid Claim in any Licensor Patent in the country that Covers the Licensed product, 10 years after the date of the First Commercial Sale in the country, or expiration of the Regulatory Exclusivity for the Licensed Product in the country. The CSPC License Agreement may be terminated earlier in specified situations, including termination for material breach, termination by us with advance notice and termination upon a party's bankruptcy.

Item 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Our exposure to market risk is limited to our cash and cash equivalents, all of which have maturities of three months or less. The primary objectives of our investment activities are to preserve principal, provide liquidity and maximize income without significantly increasing risk. Our primary exposure to market risk is interest income sensitivity, which is affected by changes in the general level of U.S. interest rates. However, because of the short-term nature of the instruments in our portfolio, a sudden change in market interest rates would not be expected to have a material impact on our financial condition and/or results of operation.

Foreign Exchange Risk

The majority of our operations are based in the U.S. and, accordingly our transactions are denominated in U.S. Dollars. However, we have foreign currency exposures related to our cash valued in the United Kingdom in British Pounds and Euros and our cash valued in Australia in Australian Dollars because our functional currency is the U.S. Dollar in our foreign-based subsidiaries. Our foreign denominated assets and liabilities are remeasured each reporting period with any exchange gains and losses recorded in our consolidated statements of operations and comprehensive income.

Item 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

See pages F-1 through F-28 following the Exhibit Index of this Annual Report on Form 10-K.

Item 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE

None.

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Item 9A. CONTROLS AND PROCEDURES

Evaluation of Our Disclosure Controls and Procedures

We maintain disclosure controls and procedures that are designed to provide reasonable assurance that material information required to be disclosed in our periodic reports filed under the Exchange Act is recorded, processed, summarized, and reported within the time periods specified in the SEC’s rules and forms and to provide reasonable assurance that such information is accumulated and communicated to our management, our principal executive officer and our principal financial officer, to allow timely decisions regarding required disclosure. Our management, with the participation of our Chief Executive Officer and our Chief Financial Officer, has evaluated the effectiveness of our disclosure controls and procedures (as defined in Rule 13a-15(e) of the Exchange Act, as amended) as of the end of the period covered by this report. Based upon, and as of the date of, this evaluation, our Chief Executive Officer and our Chief Financial Officer concluded that our disclosure controls and procedures as of December 31, 2023 are effective and the previously disclosed material weakness has been remediated as described below.

Remediation of Prior Material Weakness

In May 2023, in connection with the preparation of our interim financial statements for the period ended March 31, 2023, we determined that our disclosure controls and procedures were not effective due to a material weakness. The material weakness related to our failure to maintain an effective control environment over the internal control activities to ensure the processing of and reporting of accruals associated with upfront payments and issue fees in licensing agreements were complete, accurate and timely.

As of December 31, 2023, management implemented measures that it believes remediated the identified material weakness. Specifically, controls over the preparation of financial statements have been enhanced, including designing, documenting, and implementing additional reconciliations, analysis and review procedures over accruals associated with upfront payments and issue fees in licensing agreements. Based upon the testing and evaluation of the design and operating effectiveness of the new controls, our Chief Executive Officer and our Chief Financial Officer concluded that the material weakness relating to accruals associated with upfront payments and issue fees in licensing agreements was remediated.

Management’s Report on Internal Control Over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal controls over financial reporting, as such term is defined in Rule 13a-15(f) of the Exchange Act. Our management conducted an assessment of the effectiveness of our internal control over financial reporting based on the criteria set forth in the “Internal Control-Integrated Framework (2013)” issued by the Committee of Sponsoring Organization of the Treadway Commission. Based on this assessment, management concluded that, as of December 31, 2023, our internal control over financial reporting was effective.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risks that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

This annual report does not include an attestation report of our registered public accounting firm on internal control over financial reporting. We are currently a non-accelerated filer and are therefore not required to provide an attestation report on our internal control over financial reporting until such time as we are an accelerated filer or large accelerated filer.

Changes in Internal Control over Financial Reporting

We have undertaken remediation actions, as discussed above, to address the material weakness in our internal controls over financial reporting. These remediation actions continued through the year ended December 31, 2023, but have not materially affected our internal control over financial reporting. Except as noted above, there were no other changes in our internal control over financial reporting (as defined in Rule 13a-15(f) of the Exchange Act) that occurred during the period to which this report relates that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

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Item 9B. OTHER INFORMATION

Director and Officer Trading Arrangements

None of our directors or officers adopted or terminated a Rule 10b5-1 trading arrangement or a non-Rule 10b5-1 trading arrangement (as defined in Item 408(c) of Regulation S-K) during the fourth quarter of 2023.

Item 9C. DISCLOSURE REGARDING FOREIGN JURISDICTION THAT PREVENTS INSPECTIONS

Not applicable.

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PART III

Item 10. DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE

Our directors and their ages as of the date of this filing are set forth below. Each director is elected annually to serve until the next annual meeting of shareholders, or until his or her successor is duly elected.

Name	Age	Position(s)	Served as an Officer or Director Since
Yuval Cohen, Ph.D.	48	Chief Executive Officer and Director	2014
Alan Holmer	74	Director (Chairman of the Board)	2014
Avery W. Catlin	75	Director	2014
Rachelle Jacques	52	Director	2019
John Jenkins	66	Director	2018
Peter Salzmann	56	Director	2020
Anne Altmeyer	59	Director	2022
Yong Ben	50	Director	2023

There are no family relationships between any of our directors or executive officers.

The biographies of our directors and certain information regarding each director’s experience, attributes, skills and/or qualifications that led to the conclusion that the director should be serving as a director of our Company are as follows:

Yuval Cohen, Ph.D., Chief Executive Officer and Director

Dr. Cohen has served as our Chief Executive Officer and as a director since April 11, 2014. Prior to joining Corbus Pharmaceuticals, Inc., he was the President and co-founder of Celsus Therapeutics PLC (“Celsus”) Dr. Cohen holds a BSc (Hons) in microbiology and biochemistry from University of Cape Town, South Africa, and has a Ph.D., summa cum laude, from the Curie Institute of Cancer Research in Paris and the University of Paris V. Dr. Cohen was selected as a director because of his business and leadership experience in the biopharmaceutical sector, as well as a result of having served as a director since our inception.

Alan Holmer, Chairman of the Board

Mr. Holmer has served as a director of Corbus Pharmaceuticals, Inc. since January 2014 and chairman of our board since April 11, 2014. From 1996 to 2005 he served as President and Chief Executive Officer of the Pharmaceutical Research and Manufacturers of America (PhRMA), an organization that represents the worldwide interests of leading pharmaceutical and biotechnology companies, based in Washington, D.C. From 2005 to 2007 and again from February 2009 until its acquisition by Merck in May 2011, Mr. Holmer served as a Director of Inspire Pharmaceuticals, Inc., and at various times as member of its Corporate Governance Committee, Audit Committee, and Drug Development Committee. In addition to his pharmaceutical industry experience, Mr. Holmer has significant expertise in handling legal, international trade and governmental issues, having held various positions within the office of the U.S. Trade Representative, the Commerce Department and the White House, including serving as Deputy U.S. Trade Representative with rank of Ambassador. Mr. Holmer served as Special Envoy for China and the Strategic Economic Dialogue, a position to which he was appointed by Secretary of the Treasury, Henry M. Paulson, Jr. from 2007 to 2009. Mr. Holmer also served as a partner at the international law firm, Sidley & Austin (now Sidley Austin LLP), and as an associate at Steptoe & Johnson LLP. From 2012 to 2016, Mr. Holmer served as Special Counsel in the Washington, D.C. office of Smith, Currie & Hancock LLP. Mr. Holmer has been involved in many community service organizations, including as the former Chairman of the Board of the Metropolitan Washington, D.C., Chapter of the Cystic Fibrosis Foundation (2009 to 2018). He also served as Co-Chairman of the President’s Advisory Council on HIV/AIDS. Mr. Holmer received an A.B. degree from Princeton University and a J.D. from Georgetown University Law Center. Mr. Holmer was selected as a director because of his background in the pharmaceutical and biotechnology industry and his experience in governance matters.

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Avery W. (Chip) Catlin, Director

Mr. Catlin has served as a director since August 2014, and also served on the Board of Directors of Provention Bio, Inc. from September 2018 to April 2023. From January 2000 to June 2017, Mr. Catlin served as Senior Vice President, Chief Financial Officer, and Secretary of Celldex Therapeutics, Inc. (Nasdaq: CLDX), a public biopharmaceutical company. Prior to joining Celldex Therapeutics, Inc. in January 2000, he served as Vice President, Operations and Finance, and Chief Financial Officer of Endogen, Inc., a public life science research products company, from 1996 to 1999. From 1992 to 1996, he held various financial positions at Repligen Corporation (Nasdaq: RGEN), a public biopharmaceutical company, serving the last two years as Chief Financial Officer. Earlier in his career, he held the position of Chief Financial Officer at MediSense, Inc., a Massachusetts-based medical device company. Mr. Catlin received his B.A. degree from the University of Virginia and M.B.A. from Babson College and is a Certified Public Accountant. Mr. Catlin was selected as a director due to his leadership experience at other public companies, and his financial and accounting experience and his expertise in governance matters.

Rachelle S. Jacques, Director

Ms. Jacques has served as a director since April 2019. Ms. Jacques is the President and Chief Executive Officer of Akari Therapeutics, Plc (Nasdaq: AKTX) (“Akari”), a late-stage biopharmaceutical company focused on innovative therapeutics to treat orphan autoimmune and inflammatory diseases where complement (C5) and/or leukotriene systems (LBT4) are implicated, and also serves on their Board of Directors. Previously, Ms. Jacques served as the Chief Executive Officer of Enzyvant Therapeutics, Inc., a wholly-owned subsidiary of Sumitomo Dainippon Pharma Co., Ltd. (TSE: 4506), focused on developing therapies for patients with rare diseases, from February 2019 to March 2022. Beginning in 2017, she served as the Senior Vice President and Global Complement Franchise Head at Alexion Pharmaceuticals, Inc. (Nasdaq: ALXN), where she was responsible for commercialization strategy and execution. From 2016 to 2017, Ms. Jacques was Vice President of U.S. Hematology Marketing at Shire plc, which acquired Baxalta Inc. (“Baxalta”) in 2016. Prior to this role, from 2015 to 2016, Ms. Jacques served as Vice President of Business Operations at Baxalta after its spinoff from Baxter International Inc. (NYSE: BAX) in 2015. From 2013 to 2015, Ms. Jacques served in leadership positions, including Vice President of Finance, US BioScience Business, at Baxter. Prior to joining Baxter, Ms. Jacques served in various roles of increasing responsibility at Dow Corning Corporation, including U.S. and international operational management roles, from 1995 to 2013. Ms. Jacques currently serves as a member of the Board of Directors of uniQure N.V. (Nasdaq: QURE) since 2021. Previously, she served as a member of the Board of Directors of Viela Bio, Inc. (Nasdaq: VIE) from April 2020 to March 2021. Ms. Jacques received her B.A. degree in business administration from Alma College and is currently a member of the school's Board of Trustees. Ms. Jacques was selected as a director due to her multinational business leadership and commercialization experience, particularly in the biotechnology industry.

John K. Jenkins, MD, Director

Dr. Jenkins has served as a director since June 2018. Dr. Jenkins is currently Managing Member of John K. Jenkins Advisors, LLC, an FDA-focused strategic regulatory advisory firm located in Washington, DC. Previously he served as Principal, Drug and Biological Products at Greenleaf Health from 2017 to 2023. In that role, he advised companies developing new drugs and seeking FDA approval. Dr. Jenkins also worked in various positions of increasing responsibility at the FDA from May 1992 until his retirement in January 2017. During his tenure at the FDA, Dr. Jenkins served as Director of the Division of Pulmonary Drug Products from 1995 to 1999, Director of the Office of Drug Evaluation II from 1999 to 2002, and Director of the Office of New Drugs from 2002 to 2017. In his role as Director of the Office of New Drugs, Dr. Jenkins was responsible for oversight of all new drug reviewing divisions for small molecule drugs, therapeutic biologic proteins, and biosimilars. Dr. Jenkins was also a member of the Center for Drug Evaluation and Research Senior Leadership Team and represented the FDA during Congressional testimony on a variety of issues and during negotiations related to the renewal of the Prescription Drug User Fee Act. Prior to joining the FDA, Dr. Jenkins served as an Assistant Professor of Pulmonary and Critical Care Medicine at VCU/MCV, and as a Staff Physician at the Hunter Holmes McGuire VA Medical Center in Richmond, Virginia. Dr. Jenkins is board certified in internal medicine and pulmonary diseases by the American Board of Internal Medicine. He received his medical degree from the University of Tennessee, Memphis and completed his post-graduate medical training in internal medicine, pulmonary diseases, and critical care medicine at Virginia Commonwealth University/Medical College of Virginia in Richmond. Dr. Jenkins was selected as a director due to his medical knowledge and strategic regulatory expertise.

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Peter Salzmann, MD, Director

Dr. Salzmann has served as a director since March 6, 2020. Dr. Salzmann has served as the Chief Executive Officer of Immunovant, Inc. (NASDAQ: IMVT), a clinical-stage biopharmaceutical company focused on enabling normal lives for patients with autoimmune diseases, since June 2019, and as a member of its Board of Directors since December 2019. Previously, from November 2018 to June 2019, he served as Global Brand Development Leader in Immunology at Eli Lilly and Company (NYSE: LLY), where he designed and executed a comprehensive indication development strategy and oversaw Phase 2 and 3 clinical trial execution. From March 2013 to October 2018, Dr. Salzmann was Head of U.S. Immunology at Eli Lilly, and Managing Director of Lilly Alps from January 2011 to April 2013. From January 2008 to December 2010, Dr. Salzmann was the Head of Marketing for Eli Lilly China. Dr. Salzmann earned a B.A. in Chemistry from Northwestern University, an M.D. from University of Chicago’s Pritzker School of Medicine, and an M.B.A. from Stanford University’s Graduate School of Business. Dr. Salzmann was selected as a director because of his extensive prior experience in the biopharmaceutical industry and his leadership experience at other public companies.

Anne Altmeyer, Ph.D., Director

Dr. Altmeyer has served as a director since September 20, 2022. Dr. Altmeyer is the President, Chief Executive Officer and member of the Board of Directors of TigaTx, Inc. since June 2021. TigaTx is a biotech company developing engineered IgA monoclonal antibodies for the treatment of cancer patients. Before joining TigaTx, Dr. Altmeyer was the Chief Business Officer at Sigilon Therapeutics, Inc., a biotech company that was developing Shielded Living Therapeutics for patients with chronic diseases (acquired by Eli Lilly). Prior to Sigilon, Dr. Altmeyer was Chief Business Officer at Adicet Bio, Inc. (Nasdaq: ACET), a biotech developing allogenic, engineered gamma delta T cells for the treatment of cancer and other diseases. Before joining Adicet Bio, Dr. Altmeyer was Vice President for Business Development & Licensing at Baxalta (acquired by Shire Plc) where she focused on global transactions for Baxalta’s businesses. Prior to Baxalta, Dr. Altmeyer worked for Novartis Pharmaceuticals for over a decade from 2004 to 2015 in positions of increasing responsibilities within Business Development and Project Leadership. She also oversaw the Companion Diagnostics Business Development group and managed several alliances. As a project leader at Novartis, Dr. Altmeyer led multidisciplinary project teams through the generation and implementation of strategies for compounds in research, development and on the market. Prior to Novartis, Anne worked as a project manager at Merck & Co., Inc. (NYSE: MRK), supporting various therapeutic areas. Dr. Altmeyer received a Ph.D. in molecular immunology from Strasbourg University, France, performed a postdoctoral fellowship at the New York University School of Medicine, and was a research associate at Cornell University Medical College. Dr. Altmeyer has also received an M.B.A. from Rutgers University and an M.P.H. from the University of Medicine and Dentistry of New Jersey. Dr. Altmeyer was selected as a director because of her business leadership experience and extensive prior experience in the biopharmaceutical industry.

Yong Ben, MD, Director

Dr. Ben has served as a director since March 1, 2023. Dr. Ben has over 20 years of clinical development expertise including strategic planning, oncology clinical trial design and execution and successful BLA/NDA submissions. Dr. Ben is currently Venture Partner at Eight Roads Venture (formerly known as Fidelity Ventures) since August 2022. Prior to that, Dr. Ben served as Chief Medical Officer for BeiGene, Ltd. (NASDAQ: BGNE), a global biotechnology company specializing in drugs for cancer treatment, from February 2019 to February 2022, and served as a clinical advisor with the company until July 2022. Prior to BeiGene, Dr. Ben served as Chief Medical Officer for BioAtla, Inc. (NASDAQ: BCAB), an immunotherapy company, from May 2017 to February 2019. Prior to BioAtla, Dr. Ben was the Global Clinical Leader, Immuno-Oncology Clinical Development, for AstraZeneca PLC (NASDAQ: AZN) from August 2014 to May 2017. Dr. Ben received his medical degree from Norman Bethune College of Medicine and was a surgical oncologist at Peking Union Medical College Hospital with a post-doctoral fellowship at California Pacific Medical Center. Dr. Ben also received an M.B.A. from the University of California, San Diego. Dr. Ben was selected as a director due to his medical knowledge and extensive business leadership experience in the biopharmaceutical industry.

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Executive Officers

Our executive officers and their ages as of the date of this filing are set forth below. Our executive officers are elected by, and serve at the discretion of, our Board.

Name	Age	Position(s)	Serving in Position Since
Yuval Cohen, Ph.D.	48	Chief Executive Officer, Director	2014
Sean Moran	66	Chief Financial Officer	2014
Rachael Brake, Ph.D.	52	Chief Scientific Officer	2021

(1) Dr. Brake served as our Chief Scientific Officer through February 19, 2024.

The business experience for the past five years, and in some instances, for prior years, of each of our executive officers is as follows:

Yuval Cohen, Ph.D., Chief Executive Officer and Director

See description the above section entitled “Directors.”

Sean Moran, CPA, MBA, Chief Financial Officer

Mr. Moran has served as our Chief Financial Officer since April 11, 2014. Mr. Moran joined Corbus Pharmaceuticals, Inc. (formerly JB Therapeutics), our wholly-owned subsidiary, as its Chief Financial Officer in January 2014. Mr. Moran has over twenty-five years of senior financial experience with emerging biotechnology, drug delivery and medical device companies. Mr. Moran has worked at three different companies that completed initial public offerings and maintained a listing on a public exchange. Before joining our company, Mr. Moran served as Director of Finance and then as Chief Financial Officer for InVivo Therapeutics Corporation from 2010 to 2013 and served as Chief Financial Officer of Celsion Corporation from 2008 to 2010, Transport Pharmaceuticals Inc. from 2006 to 2008, Echo Therapeutics Inc. from 2002 to 2006, SatCon Technology Corporation from 2000 to 2002, and Anika Therapeutics Inc. from 1993 to 2000. Mr. Moran is a CPA by training and earned his M.B.A. and a B.S. in Accounting from Babson College.

Rachael Brake, Ph.D., Chief Scientific Officer

Dr. Brake served as our Chief Scientific Officer from December 2021 to February 2024. Previously, Dr. Brake served at Takeda Pharmaceuticals (NYSE: TAK) from 2014 to 2021 where she held multiple leadership roles in research and development, including Vice President, Global Project Leader in Oncology and most recently, Head, U.S. Medical Affairs in the Oncology Business Unit. In this position, Dr. Brake managed a portfolio of programs and cross-functional teams responsible for the preclinical and clinical exploration of various solid tumor drug candidates spanning diverse mechanisms of action. Dr. Brake developed a medical strategy for Takeda Oncology’s portfolio and emerging immune-focused pipeline. She is experienced in early- and late-stage clinical development, regulatory approvals, program externalizations and commercialization efforts. Prior to her tenure at Takeda, Dr. Brake held leadership roles in research at Amgen Inc. (Nasdaq: AMGN) from 2004 to 2012 and Millennium Pharmaceuticals, Inc. from 2012 to 2014. Dr. Brake obtained her Ph.D. in Molecular Biology and Biochemistry from the University of Western Australia Perth.

Code of Business Conduct and Ethics

We have adopted a written code of business conduct and ethics that applies to our employees, officers and directors. A copy of the code is posted under the “Investors” tab under “Governance” in our website, which is located at www.corbuspharma.com. We intend to disclose future amendments to certain provisions of our code of business conduct and ethics, or waivers of such provisions applicable to any principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions, and our directors, on our website identified above or in a Current Report on Form 8-K.

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Anti-Hedging Policy

Under the terms of our insider trading policy, we prohibit each officer, director and employee, and each of their family members and controlled entities, from engaging in certain forms of hedging or monetization transactions. Such transactions include those, such as zero-cost collars and forward sale contracts, that would allow them to lock in much of the value of their stock holdings, often in exchange for all or part of the potential for upside appreciation in the stock, and to continue to own the covered securities but without the full risks and rewards of ownership.

Board Committees

Our Board has established an Audit Committee, a Compensation Committee and a Nominating and Corporate Governance Committee. Our Board may establish other committees to facilitate the management of our business. The composition and functions of each committee named above are described below. Members serve on these committees until their resignation or until otherwise determined by our Board. Each of these committees operate under a charter that has been approved by our Board.

Audit Committee. Our Audit Committee currently consists of Ms. Jacques, Dr. Jenkins and Mr. Catlin. Mr. Catlin is the Chair of the Audit Committee. Our Audit Committee met 5 times in 2023. Our Board has determined that the directors currently serving on our Audit Committee are independent within the meaning of the Nasdaq Listing Rules and Rule 10A-3 under the Exchange Act. In addition, our Board has determined that Mr. Catlin qualifies as an audit committee financial expert within the meaning of SEC regulations and the Nasdaq Listing Rules.

The Audit Committee oversees and monitors our financial reporting process and internal control system, reviews and evaluates the audit performed by our registered independent public accountants and reports to our Board any substantive issues found during the audit. The Audit Committee will be directly responsible for the appointment, compensation and oversight of the work of our registered independent public accountants. The Audit Committee reviews and approves all transactions with affiliated parties. Our Board has adopted a written charter for the Audit Committee. A copy of the charter is posted under the “Investors” tab under “Governance” in our website, which is located at www.corbuspharma.com.

Compensation Committee. Our Compensation Committee currently consists of Mr. Catlin, Dr. Altmeyer, and Dr. Jenkins. Dr. Jenkins is the Chair of the Compensation Committee. Our Compensation Committee met 7 times in 2023. Our Board has determined that the directors currently serving on our Compensation Committee are independent under the Nasdaq Listing Rules, are “non-employee directors” as defined in Rule 16b-3 promulgated under the Exchange Act and are “outside directors” as that term is defined in Section 162(m) of the Internal Revenue Code of 1986, as amended.

The Compensation Committee provides advice and makes recommendations to our Board in the areas of employee salaries, benefit programs and director compensation. The Compensation Committee also reviews and approves corporate goals and objectives relevant to the compensation of our Chief Executive Officer and other officers and makes recommendations in that regard to our Board as a whole.

In discharging its responsibilities, the Compensation Committee works with our Chief Executive Officer, who assists the Compensation Committee by providing information on corporate and individual performance, perspectives on performance issues and recommendations on compensation matters.

Typically, our Chief Executive Officer will make recommendations to the Compensation Committee regarding compensation matters, including adjustments to annual cash compensation, long-term incentive compensation opportunities for our executive officers, including our other Named Executive Officers. At the beginning of each year, our Chief Executive Officer reviews the performance of our executive officers based on such individual’s level of success in accomplishing the business objectives established for him or her for the prior year and his or her overall performance during that year, and then shares these evaluations with, and makes recommendations to, the Compensation Committee for each element of compensation as described above. The Compensation Committee reviews and discusses these recommendations and proposals with our Chief Executive Officer.

Our Chief Executive Officer attends meetings of the Compensation Committee at which executive compensation matters are addressed, but does not participate in the Compensation Committee’s deliberations involving his own compensation.

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The Compensation Committee has directly engaged independent compensation consultant, OneDigital, to provide advice and recommendations on the structure, amount and form of executive and director compensation and the competitiveness thereof. At the request of the Compensation Committee, the compensation consultants provided, among other things, comparative data from selected peer companies. The compensation consultants report directly to the Compensation Committee. The Compensation Committee’s decision to hire the compensation consultants was not made or recommended by Company management. The compensation consultant has not performed any work for the Company in 2023 except with respect to the work that it has done directly for the Compensation Committee.

Our Board has adopted a written charter for the Compensation Committee. A copy of the charter is posted under the “Investors” tab under “Governance” in our website, which is located at www.corbuspharma.com.

Nominating and Corporate Governance Committee. Our Nominating and Corporate Governance Committee currently consists of Dr. Salzmann, Dr. Ben, and Ms. Jacques. Ms. Jacques is the Chair of the Nominating and Corporate Governance Committee. Our Nominating and Corporate Governance Committee met 3 times in 2023. The Nominating and Corporate Governance Committee nominates individuals to be elected to the full board by our stockholders. The Nominating and Corporate Governance Committee considers recommendations from stockholders if submitted in a timely manner in accordance with the procedures set forth in our bylaws and will apply the same criteria to all persons being considered. All members of the Nominating and Corporate Governance Committee are independent directors as defined under the Nasdaq Listing Rules. Our Board has adopted a written charter for the Nominating and Corporate Governance Committee. A copy of the charter is posted under the “Investors” tab under “Governance” in our website, which is located at www.corbuspharma.com.

Delinquent Section 16(a) Reports

Section 16(a) of the Securities Exchange Act of 1934, as amended, requires our directors and executive, officers, and persons who are beneficial owners of more than 10% of a registered class of our equity securities, to file reports of ownership and changes in ownership with the Securities and Exchange Commission, or the SEC. These persons are required by SEC regulations to furnish us with copies of all Section 16(a) forms they file.

To our knowledge, based solely on a review of the copies of such reports furnished to us, and written representations that no other reports were required during the fiscal year ended December 31, 2023, all reports required to be filed under Section 16(a) during 2023 were filed on a timely basis.

Item 11. EXECUTIVE COMPENSATION

Executive Compensation

Our named executive officers for the year ended December 31, 2023 were Yuval Cohen, Ph.D., Director and Chief Executive Officer; Sean Moran, CPA, Chief Financial Officer and Rachael Brake, Ph.D. former Chief Scientific Officer.

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Summary Compensation Table

The following table presents information regarding the total compensation awarded to, earned by, or paid to our chief executive officer and the two most highly-compensated executive officers (other than the chief executive officer) who were serving as executive officers as of December 31, 2023 and December 31, 2022 for services rendered in all capacities to us for the year ended December 31, 2023 and December 31, 2022. These individuals are our named executive officers for 2023.

Name and Principal Position	Year	Salary ($)	Bonus ($)	Stock Awards ($)	Option Awards ($) (1)	Non-equity Incentive Plan Compensation ($)	All Other Compensation ($) (2)	Total ($)
Yuval Cohen	2023	$598,850	$283,855	$—	$229,842	$—	$25,075	$1,137,622
Chief Executive Officer	2022	$598,071	$277,728	$—	$552,172	$—	$14,870	$1,442,841
Sean Moran	2023	$444,971	$135,403	$—	$107,975	$—	$28,907	$717,256
Chief Financial Officer	2022	$427,933	$132,480	$—	$199,563	$—	$18,640	$778,616
Rachael Brake	2023	$453,980	$200,000	$—	$161,735	$—	$24,152	$839,867
Chief Scientific Officer	2022	$427,779	$108,986	$—	$211,573	$—	$15,457	$763,795

(1)

Amounts reflect the grant date fair value of option awards granted in 2023 and 2022 in accordance with Accounting Standards Codification Topic 718. For information regarding assumptions underlying the valuation of equity awards, see Note 3 to our Consolidated Financial Statements and the discussion under “Management’s Discussion and Analysis of Financial Condition and Results of Operations - Critical Accounting Policies and Estimates - Stock-Based Compensation” included in Item 7 of this Annual Report on Form 10-K for the fiscal year ended December 31, 2023. These amounts do not correspond to the actual value that may be received by the named executive officers if the stock options are exercised.

(2)

Includes the following amounts in respect to company matching contributions under our 401(k) plan, individual health savings accounts, company-paid premiums for group term life insurance, and company-paid internet allowance. The company-paid life insurance premiums reflect payments for group term life policies maintained for the benefit of all employees.

Name	Year	Company 401(k) Matching Contribution ($)	Company Health Savings Account Matching Contribution ($)	Company-Paid Group Term Life Insurance Premiums ($)	Company-Paid Internet Allowance ($)	Total All Other Compensation ($)
Yuval Cohen	2023	$19,290	$4,000	$810	$975	$25,075
	2022	$9,085	$4,000	$810	$975	$14,870
Sean Moran	2023	$17,074	$4,000	$6,858	$975	$28,907
	2022	$10,101	$4,000	$3,564	$975	$18,640
Rachael Brake	2023	$17,935	$4,000	$1,242	$975	$24,152
	2022	$9,240	$4,000	$1,242	$975	$15,457

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Narrative Disclosure to Summary Compensation Table Employment Agreements

Yuval Cohen

We entered an employment agreement with Dr. Cohen which became effective April 11, 2020 (the “2020 Cohen Agreement”). The 2020 Cohen Agreement was effective for a period of two years. The 2020 Cohen Agreement provides for Dr. Cohen to serve as Chief Executive Officer and provides for an annual base salary of $559,000. In addition, pursuant to the 2020 Cohen Agreement, Dr. Cohen will be eligible to receive an annual bonus, which is targeted at up to 60% of his base salary but which may be adjusted by the Board based on his individual performance and the Company’s performance as a whole. Pursuant to the terms of the 2020 Cohen Agreement, Dr. Cohen will be eligible to receive, from time to time, equity awards under the Company’s existing equity incentive plan, or any other equity incentive plan the Company may adopt in the future, and the amounts of such awards, if any, will be determined by the Board or Compensation Committee, in their discretion. Dr. Cohen will be subject to non-compete provisions, which apply during the term of his employment and for a period of six months from the date of cessation of his employment, subject to the Company providing as severance ((x) if the Company terminates Dr. Cohen’s employment without cause or he terminates his employment for good reason during the term of the 2020 Cohen Agreement and (y) Dr. Cohen timely executes and does not revoke a general release, which will include a non-compete covenant, and complies with covenants) twelve months of his base salary, other than during the Change in Control Period (as defined below), in which case it will be increased to twenty-four (24) months. Dr. Cohen will be subject to non-solicitation provisions, which apply during the term of his employment and for a period of twelve months from the date of cessation of his employment. In addition, the 2020 Cohen Agreement contains customary confidentiality and assignment of inventions provisions. If the Company terminates Dr. Cohen’s employment without cause or he terminates his employment for good reason during the term of the 2020 Cohen Agreement, other than during the Change in Control Period, the Company will be required to provide as severance reimbursement of the cost of COBRA coverage (or to use commercially reasonable best efforts to provide the cost of other comparable coverage if COBRA reimbursement would incur tax penalties or violate the law) for twelve months, and he may be paid a pro-rated bonus, each subject to his timely execution and non-revocation of a general release, which will include a non-compete covenant, and continuing compliance with covenants. If the Company terminates Dr. Cohen’s employment without cause or he terminates his employment for good reason during the term of the 2020 Cohen Agreement, and within the three months immediately prior to a change in control or the twelve months immediately following a change in control (the “Change in Control Period”), the Company will be required to provide as severance reimbursement of the cost of COBRA coverage (or to use commercially reasonable best efforts to provide the cost of other comparable coverage if COBRA reimbursement would incur tax penalties or violate the law) for twenty-four (24) months, accelerated vesting of all of his outstanding options, restricted stock and other equity incentive awards and his current year bonus at two (2) times target levels, each subject to his timely execution and non-revocation of a general release which will include a non-compete covenant, and continuing compliance with covenants. Dr. Cohen’s severance payments and other applicable payments and benefits will be subject to reduction to the extent doing so would put him in a better after-tax position after taking into account any excise tax he may incur under Internal Revenue Code Section 4999 in connection with any change in control of us or his subsequent termination of employment. The 2020 Cohen Agreement expired on April 11, 2022.

Effective April 11, 2022, we entered into a fourth amended and restated employment agreement with Dr. Cohen, which is effective for a period of two years. Dr. Cohen’s employment agreement provides for him to serve as Chief Executive Officer and provides for an annual base salary of $598,850. In addition, Dr. Cohen is eligible to receive an annual bonus, which is targeted at up to 60% of his base salary but which may be adjusted by our Board based on his individual performance and our performance as a whole. Pursuant to the terms of the employment agreement, Dr. Cohen is eligible to receive, from time to time, equity awards under our existing equity incentive plan, or any other equity incentive plan we may adopt in the future, and the terms and conditions of such awards, if any, will be determined by our Board or Compensation Committee, in their discretion. Dr. Cohen is subject to non-compete provisions, which apply during the term of his employment and for a period of six months from the date of cessation of his employment, subject to the Company providing as severance ((x) if we terminate Dr. Cohen’s employment without cause or he terminates his employment for good reason during the term of his employment agreement and (y) Dr. Cohen timely executes and does not revoke a general release, which will include a non-compete covenant, and complies with such covenants) twelve months of his base salary, other than during the Change in Control Period (as defined below), in which case it will be increased to twenty-four (24) months. Dr. Cohen will be subject to non-solicitation provisions, which apply during the term of his employment and for a period of twelve months from the date of cessation of his employment. In addition, the employment agreement contains customary confidentiality and assignment of inventions provisions. If we terminate Dr. Cohen’s employment without cause or he terminates his employment for good reason during the term of his employment agreement, other than during the Change in Control Period, we are required to pay him as severance reimbursement of the cost of COBRA coverage (or to use commercially reasonable best efforts to provide the cost of other comparable coverage if COBRA reimbursement would incur tax penalties or violate the law) for twelve months, and he may be paid a pro-rated bonus, each subject to his timely execution of a general release, which will include a non-compete covenant, and continuing compliance with such covenants. If we terminate Dr. Cohen’s employment without cause or he terminates his

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employment for good reason during the term of the employment agreement, and within the three months immediately prior to a change in control or the twelve months immediately following a change in control (the “Change in Control Period”), we are required to provide as severance reimbursement of the cost of COBRA coverage (or to use commercially reasonable best efforts to provide the cost of other comparable coverage if COBRA reimbursement would incur tax penalties or violate the law) for twenty-four (24) months, accelerated vesting of all of his outstanding options, restricted stock and other equity incentive awards and his current year bonus at two (2) times target levels, each subject to his timely execution and non-revocation of a general release which will include a non-compete covenant, and continuing compliance with such covenants. Dr. Cohen’s severance payments and other applicable payments and benefits will be subject to reduction to the extent doing so would put him in a better after-tax position after taking into account any excise tax he may incur under Internal Revenue Code Section 4999 in connection with any change in control of the Company or his subsequent termination of employment. Dr. Cohen’s employment agreement expires on April 11, 2024.

Sean Moran

We entered an employment agreement with Mr. Moran which became effective April 11, 2020 (the “2020 Moran Agreement”). The 2020 Moran Agreement was effective for a period of two years. The 2020 Moran Agreement provides for Mr. Moran to serve as Chief Financial Officer and provides for an annual base salary of $400,000. In addition, pursuant to the 2020 Moran Agreement, Mr. Moran will be eligible to receive an annual bonus, which is targeted at up to 40% of his base salary but which may be adjusted by the Board based on his individual performance and the Company’s performance as a whole. Pursuant to the terms of the 2020 Moran Agreement, Mr. Moran will be eligible to receive, from time to time, equity awards under the Company’s existing equity incentive plan, or any other equity incentive plan the Company may adopt in the future, and the payments of such awards, if any, will be determined by the Board or Compensation Committee, in their discretion. Mr. Moran is subject to non-compete provisions, which apply during the term of his employment and for a period of six months from the date of cessation of his employment, subject to the Company providing as severance ((x) if the Company terminates Mr. Moran’s employment without cause or he terminates his employment for good reason during the term of the 2020 Moran Agreement and (y) he timely executes and does not revoke a general release, which will include a non-compete covenant, and complies with covenants.) twelve months of his base salary, other than during the Change in Control Period (as defined below), in which case it will be increased to eighteen (18) months. Mr. Moran will be subject to non-solicitation provisions, which apply during the term of his employment and for a period of twelve months from the date of cessation of his employment. In addition, the 2020 Moran Agreement contains customary confidentiality and assignment of inventions provisions. If the Company terminates Mr. Moran’s employment without cause or he terminates his employment for good reason during the term of the 2020 Moran Agreement, other than during the Change in Control Period, the Company will be required to pay him as severance reimbursement of the cost of COBRA (or to use commercially reasonable best efforts to provide the cost of other comparable coverage if COBRA reimbursement would incur tax penalties or violate the law) for twelve months, and he may be paid a pro-rated bonus, each subject to his timely execution and non-revocation of a general release, which will include a non-compete covenant, and continuing compliance with covenants. If the Company terminates Mr. Moran’s employment without cause or he terminates his employment for good reason during the term of the 2020 Moran Agreement, and during the Change in Control Period, the Company will be required to pay him as severance reimbursement of the cost of COBRA coverage (or to use commercially reasonable best efforts to provide the cost of other comparable coverage if COBRA reimbursement would incur tax penalties or violate the law) for eighteen (18) months, accelerated vesting of all of his outstanding options, restricted stock and other equity incentive awards and his current year bonus at target levels, each subject to his timely execution and non-revocation of a general release, which will include a non-compete covenant, and continuing compliance with covenants. Mr. Moran’s severance payments and other applicable payments and benefits will be subject to reduction to the extent doing so would put him in a better after-tax position after taking into account any excise tax he may incur under Internal Revenue Code Section 4999 in connection with any change in control of the Company or his subsequent termination of employment. The 2020 Moran Agreement expired on April 11, 2022.

Effective April 11, 2022, we entered into a fifth amended and restated employment agreement with Mr. Moran, which is effective for a period of two years. Mr. Moran’s employment agreement provides for him to serve as Chief Financial Officer and provides for an annual base salary of $428,490. In addition, Mr. Moran is eligible to receive an annual bonus, which is targeted at up to 40% of his base salary but which may be adjusted by our Board based on his individual performance and our performance as a whole. Pursuant to the terms of the employment agreement, Mr. Moran is eligible to receive, from time to time, equity awards under our existing equity incentive plan, or any other equity incentive plan we may adopt in the future, and the terms and conditions of such awards, if any, will be determined by our Board or Compensation Committee, in their discretion. Mr. Moran is subject to non-compete provisions, which apply during the term of his employment and for a period of six months from the date of cessation of his employment, subject to the Company providing as severance ((x) if we terminate Mr. Moran’s employment without cause or he terminates his employment for good reason during the term of the employment agreement and (y) he timely executes and does not revoke a general release, which will include a non-compete covenant, and complies with such covenants) twelve months of his base salary, other than during the Change in Control Period, in which case

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it will be increased to eighteen (18) months. Mr. Moran will be subject to non-solicitation provisions, which apply during the term of his employment and for a period of twelve months from the date of cessation of his employment. In addition, the employment agreement contains customary confidentiality and assignment of inventions provisions. If we terminate Mr. Moran’s employment without cause or he terminates his employment for good reason during the term of his employment agreement, other than during the Change in Control Period, we are required to pay him as severance reimbursement of the cost of COBRA coverage (or to use commercially reasonable best efforts to provide the cost of other comparable coverage if COBRA reimbursement would incur tax penalties or violate the law) for twelve months, and he may be paid a pro-rated bonus, each subject to his timely execution of a general release, which will include a non-compete covenant, and continuing compliance with such covenants. If we terminate Mr. Moran’s employment without cause or he terminates his employment for good reason during the term of the employment agreement, and during the Change in Control Period, we are required to pay him as severance reimbursement of the cost of COBRA coverage (or to use commercially reasonable best efforts to provide the cost of other comparable coverage if COBRA reimbursement would incur tax penalties or violate the law) for eighteen (18) months, accelerated vesting of all of his outstanding options, restricted stock and other equity incentive awards and his current year bonus at target levels, each subject to his timely execution and non-revocation of a general release, which will include a non-compete covenant, and continuing compliance with such covenants. Mr. Moran’s severance payments and other applicable payments and benefits will be subject to reduction to the extent doing so would put him in a better after-tax position after taking into account any excise tax he may incur under Internal Revenue Code Section 4999 in connection with any change in control of the Company or his subsequent termination of employment. Mr. Moran’s employment agreement expires on April 11, 2024.

Rachael Brake

On December 6, 2021, we entered an employment agreement with Dr. Brake (the “2021 Brake Agreement”). The 2021 Brake Agreement provides for her to serve, on an at-will basis, as Chief Scientific Officer and provides for an annual base salary of $410,000. In addition, Dr. Brake is eligible to receive an annual bonus, which is targeted at up to 40% of her base salary but may be adjusted by the Board based on her individual performance and the Company’s performance as a whole. Dr. Brake’s annual base salary and her targeted annual bonus could be adjusted annually by the Board. Pursuant to the terms of the 2021 Brake Agreement, Dr. Brake received an option to purchase up to 16,666 shares of the Company’s common stock pursuant to the Company’s 2014 Equity Compensation Plan, and is eligible, from time to time, to receive additional stock options or other awards (as permitted by the Plan), in amounts, if any, to be approved by the Board or the Compensation Committee in its discretion. Pursuant to the terms of the 2021 Brake Agreement, Dr. Brake is subject to non-compete and non-solicitation provisions, which apply during the term of her employment and for a period of six and twelve months, respectively, following termination of her employment. In addition, the 2021 Brake Agreement contains customary confidentiality and assignment of inventions provisions. Pursuant to the 2021 Brake Agreement, if the Company terminates Dr. Brake’s employment without cause or she terminates her employment for good reason during the term of the employment agreement, other than during the Change in Control Period, the Company may be required to pay her as severance twelve months of her base salary plus reimbursement of the cost of COBRA coverage (or to use commercially reasonable best efforts to provide the cost of other comparable coverage if COBRA reimbursement would incur tax penalties or violate the law) for twelve months, and she may be paid a pro-rated bonus, each subject to her timely execution and non-revocation of a general release and continuing compliance with covenants. If the Company terminates Dr. Brake’s employment without cause or she terminates her employment for good reason during the term of the employment agreement, and during the Change in Control Period, the Company may be required to pay her as severance eighteen (18) months of her base salary plus reimbursement of the cost of COBRA coverage (or to use commercially reasonable best efforts to provide the cost of other comparable coverage if COBRA reimbursement would incur tax penalties or violate the law) for eighteen (18) months, accelerated vesting of all of her outstanding options, restricted stock and other equity incentive awards and her current year bonus at target levels, each subject to her timely execution of a general release and continuing compliance with covenants. Dr. Brake’s severance payments and other applicable payments and benefits will be subject to reduction to the extent doing so would put her in a better after-tax position after taking into account any excise tax she may incur under Internal Revenue Code Section 4999 in connection with any change in control of the Company or her subsequent termination of employment. On February 2, 2024, Dr. Brake submitted a notice of resignation to the Company effective February 19, 2024.

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Outstanding Equity Awards at Fiscal Year End

The following table summarizes, for each of the named executive officers, the number of shares of common stock underlying outstanding stock options held as of December 31, 2023.

	Number of Securities Underlying Unexercised Options (#)				Number of Securities Underlying Unexercised Unearned		Option Exercise	Option Expiration
Name	Exercisable		Unexercisable		Options (#)		Price ($)	Date
Yuval Cohen	7,179	(1)	-	(1)	-		$4.97	1/28/2024
	9,091	(2)	-	(2)	-		$30.00	4/11/2024
	21,000	(3)	-	(3)	2,334	(3)	$30.00	10/22/2024
	17,667	(4)	-	(4)	-		$42.00	1/7/2026
	5,000	(5)	-	(5)	-		$261.30	10/6/2026
	12,583	(6)	-	(6)	-		$271.50	3/1/2027
	14,583	(7)	-	(7)	-		$250.50	1/4/2028
	18,833	(8)	-	(8)	-		$225.90	1/18/2029
	19,968	(9)	1,332	(9)	-		$135.90	3/6/2030
	45,166	(10)	18,600	(10)	-		$77.40	2/2/2031
	22,759	(12)	26,898	(12)	-		$14.10	2/1/2032
	-	(13)	66,318	(13)	-		$4.26	2/13/2033
Sean Moran	1,787	(2)	-	(2)	-		$30.00	4/11/2024
	3,525	(3)	-	(3)	392	(3)	$30.00	10/22/2024
	2,917	(4)	-	(4)	-		$42.00	1/7/2026
	2,500	(5)	-	(5)	-		$261.30	10/6/2026
	1,917	(6)	-	(6)	-		$271.50	3/1/2027
	2,917	(7)	-	(7)	-		$250.50	1/4/2028
	3,250	(8)	-	(8)	-		$225.90	1/18/2029
	3,531	(9)	236	(9)	-		$135.90	3/6/2030
	14,510	(10)	5,976	(10)	-		$77.40	2/2/2031
	8,225	(12)	9,722	(12)	-		$14.10	2/1/2032
	-	(13)	31,155	(13)	-		$4.26	2/13/2033
Rachael Brake	8,333	(11)	8,334	(11)	-		$22.50	12/6/2031
	8,720	(12)	10,307	(12)	-		$14.10	2/1/2032

(1)	Represents options to purchase shares of our common stock granted on January 28, 2014. 25% of the option vested on January 28, 2015, and the remaining 75% of the option vested in equal monthly installments over a period of 36 months commencing on February 28, 2015.
(2)	Represents options to purchase shares of our common stock granted on April 11, 2014. 25% of the option vested on April 11, 2015, and the remaining 75% of the option vested in equal monthly installments over a period of 36 months commencing on May 11, 2015.
(3)	Represents options to purchase shares of our common stock granted on October 22, 2014. 12.5% of the option vested on October 22, 2015 and 37.5% of the option vested in equal monthly installments over a period of 36 months commencing on November 22, 2015. The remaining 50% of the option vested in tranches between 5% and 10% upon the achievement of eight individual business milestones.
(4)	Represents options to purchase shares of our common stock granted on January 7, 2016. 25% of these options vested on January 7, 2017 with the remaining 75% of the option vesting in equal monthly installments over a period of 36 months commencing on February 7, 2017.
(5)	Represents options to purchase shares of our common stock granted on October 6, 2016. 25% of these options vested on October 6, 2017 with the remaining 75% of the option vesting in equal monthly installments over a period of 36 months commencing on November 6, 2017.

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(6)	Represents options to purchase shares of our common stock granted on March 1, 2017. 25% of these options vested on March 1, 2018 with the remaining 75% of the option vesting in equal monthly installments over a period of 36 months commencing on April 1, 2018.
(7)	Represents options to purchase shares of our common stock granted on January 4, 2018. 25% of these options vest on January 4, 2019 with the remaining 75% of the option vesting in equal monthly installments over a period of 36 months commencing on February 4, 2019.
(8)	Represents options to purchase shares of our common stock granted on January 18, 2019. 25% of these options vest on January 18, 2020 with the remaining 75% of the option vesting in equal monthly installments over a period of 36 months commencing on February 18, 2020.
(9)	Represents options to purchase shares of our common stock granted on March 6, 2020. 25% of these options vest on March 6, 2021 and the remaining 75% of the option vested in equal monthly installments over a period of 36 months commencing on April 6, 2021.
(10)	Represents options to purchase shares of our common stock granted on February 2, 2021. 25% of these options vest on February 2, 2022 and the remaining 75% of the option vested in equal monthly installments over a period of 36 months commencing on March 2, 2022.
(11)	Represents options to purchase shares of our common stock granted on December 6, 2021. 25% of these options vest on December 6, 2022 and the remaining 75% of the option vested in equal monthly installments over a period of 36 months commencing on January 6, 2023.
(12)	Represents options to purchase shares of our common stock granted on February 1, 2022. 25% of these options vest on February 1, 2023 and the remaining 75% of the option vested in equal monthly installments over a period of 36 months commencing on March 1, 2023.
(13)	Represents options to purchase shares of our common stock granted on February 13, 2023. 25% of these options vest on February 13, 2024 and the remaining 75% of the option vested in equal monthly installments over a period of 36 months commencing on March 13, 2024.

Item 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS

2014 Equity Compensation Plan

On March 26, 2014, our Board adopted the 2014 Equity Compensation Plan, or the 2014 Plan, subject to stockholder approval, which was received on April 1, 2014, pursuant to the terms described herein.

The general purpose of the 2014 Plan is to provide a means whereby eligible employees, officers, non-employee directors and other individual service providers develop a sense of proprietorship and personal involvement in our development and financial success, and to encourage them to devote their best efforts to our business, thereby advancing our interests and the interests of our stockholders. By means of the 2014 Plan, we seek to retain the services of such eligible persons and to provide incentives for such persons to exert maximum efforts for our success and the success of our subsidiaries.

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Equity Compensation Plan Information

The following table provides certain information with respect to all of the Corbus equity compensation plans in effect as of December 31, 2023:

Plan Category	Number of securities to be issued upon exercise of outstanding options, warrants and rights	Weighted-average exercise price of outstanding options, warrants and rights	Number of securities remaining available for future issuance under equity compensation plans (excluding securities reflected in column (a))
	(a)	(b)	(c)
Equity compensation plans approved by security holders	776,880	$76.70	899,015
Equity compensation plans not approved by security holders	—	—	—
TOTAL:	776,880	$76.70	899,015

Security Ownership of Certain Beneficial Owners and Management

The following table sets forth certain information as of March 8, 2024 with respect to the beneficial ownership of common stock of the Company by the following: (i) each of the Company’s current directors; (ii) each of the named executive officers; (iii) all of the current executive officers and directors as a group; and (iv) each person known by the Company to own beneficially more than five percent (5%) of the outstanding shares of the Company’s common stock.

For purposes of the following table, beneficial ownership is determined in accordance with the applicable SEC rules and the information is not necessarily indicative of beneficial ownership for any other purpose. Except as otherwise noted in the footnotes to the table, we believe that each person or entity named in the table has sole voting and investment power with respect to all shares of the Company’s common stock shown as beneficially owned by that person or entity (or shares such power with his or her spouse). Under the SEC’s rules, shares of the Company’s common stock issuable under options that are exercisable on or within 60 days after March 8, 2024 (“Presently Exercisable Options”) are deemed outstanding and therefore included in the number of shares reported as beneficially owned by a person or entity named in the table and are used to compute the percentage of the common stock beneficially owned by that person or entity. These shares are not, however, deemed outstanding for computing the percentage of the common stock beneficially owned by any other person or entity.

The percentage of the common stock beneficially owned by each person or entity named in the following table is based on 10,493,108 shares of common stock issued and outstanding as of March 8, 2024 plus any shares issuable upon exercise of Presently Exercisable Options held by such person or entity.

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Except as otherwise noted below, the address for persons listed in the table is c/o Corbus Pharmaceuticals Holdings, Inc., 500 River Ridge Drive, Norwood, Massachusetts 02062. Beneficial ownership representing less than 1% is denoted with an asterisk (*).

Name of Beneficial Owner	Number of Shares Beneficially Owned	Percentage of Shares Beneficially Owned
5% or greater Stockholders:
Cormorant Global Healthcare Master Fund, LP (1)	1,475,000	14.1%
Adage Capital Partners, L.P. (2)	796,392	7.6%
Millennium Management LLC (3)	544,276	5.2%
Officers and Directors
Yuval Cohen (4)	229,592	2.1%
Sean Moran (5)	65,047	*
Rachael Brake (6)	30,206	*
Alan Holmer (7)	16,523	*
John Jenkins (8)	11,293	*
Avery W. Catlin (9)	16,711	*
Peter Salzmann (10)	10,103	*
Rachelle Jacques (11)	11,260	*
Anne Altmeyer (12)	5,307	*
Yong Ben (13)	5,307	*
All current directors and executive officers as a group (10 total)	401,349	3.7%

(1)	Based upon information contained in a Schedule 13G jointly filed by Cormorant Global Healthcare Master Fund, LP, Cormorant Global Healthcare GP, LLC, Cormorant Asset Management, LP and Bihua Chen on February 5, 2024. Consists of 1,475,000 shares of our common stock owned by Cormorant Global Healthcare Master Fund, LP (the “Master Fund”). Cormorant Global Healthcare GP, LLC serves as the general partner of the Master Fund. Cormorant Asset Management, LP serves as the investment manager to the Master Fund. Bihua Chen serves as the managing member of Cormorant Global Healthcare GP, LLC and the general partner of Cormorant Asset Management, LP. Each of the Reporting Persons disclaims beneficial ownership of the shares reported herein except to the extent of its or her pecuniary interest therein.
(2)	Based upon information contained in a Schedule 13G jointly filed by Adage Capital Partners, L.P., Adage Capital Partners GP, L.L.C., Adage Capital Management, L.P., Robert Atchinson and Phillip Gross on February 12, 2024. Consists of 796,392 shares of our common stock owned by Adage Capital Partners, L.P. (“ACP”). Adage Capital Partners GP, L.L.C. (“ACPGP”) is the general partner of ACP with respect to the Common Stock directly owned by ACP. Adage Capital Management, L.P. (“ACM”) is the investment manager of ACP with respect to the Common Stock directly owned by ACP. Robert Atchinson (“Mr. Atchinson”) is the (1) managing member of Adage Capital Advisors, L.L.C. (“ACA”), managing member of ACPGP, and (2) managing member of Adage Capital Partners LLC (“ACPLLC”), general partner of ACM with respect to the Common Stock directly owned by ACP. Phillip Gross (“Mr. Gross”) is the (1) managing member of ACA, managing member of ACPGP, and (2) managing member of ACPLLC, general partner of ACM, with respect to the Common Stock directly owned by ACP.
(3)	Based upon information contained in a Schedule 13G jointly filed by Integrated Core Strategies (US) LLC, Millenium Management LLC, Millenium Group Management LLC and Israel A. Englander on February 23, 2024. Consists of 544,276 shares of our common stock owned by Millennium Management LLC. Millennium Group Management LLC is the managing member of Millennium Management LLC and Israel A. Englander is the sole voting trustee of the managing member of Millennium Group Management LLC.
(4)	Includes 219,139 shares of common stock issuable upon exercise of outstanding stock options exercisable within 60 days of March 8, 2024.

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(5)	Includes 58,405 shares of common stock issuable upon exercise of outstanding stock options exercisable within 60 days of March 8, 2024.
(6)	Includes 30,206 shares of common stock issuable upon exercise of outstanding stock options exercisable within 60 days of March 8, 2024.
(7)	Includes 15,144 shares of common stock issuable upon exercise of outstanding stock options exercisable within 60 days of March 8, 2024.
(8)	Includes 11,260 shares of common stock issuable upon exercise of outstanding stock options exercisable within 60 days of March 8, 2024.
(9)	Includes 15,144 shares of common stock issuable upon exercise of outstanding stock options exercisable within 60 days of March 8, 2024.
(10)	Includes 10,103 shares of common stock issuable upon exercise of outstanding stock options exercisable within 60 days of March 8, 2024.
(11)	Includes 11,260 shares of common stock issuable upon exercise of outstanding stock options exercisable within 60 days of March 8, 2024.
(12)	Includes 5,307 shares of common stock issuable upon exercise of outstanding stock options exercisable within 60 days of March 8, 2024.
(13)	Includes 5,307 shares of common stock issuable upon exercise of outstanding stock options exercisable within 60 days of March 8, 2024.

Item 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE

Transactions with Related Persons

Other than compensation arrangements for our named executive officers and directors, we describe below each transaction or series of similar transactions, since January 1, 2022, to which we were a party or will be a party, in which:

•the amounts involved exceeded or will exceed $120,000 or one percent of the average of our total assets at year end for the last two completed fiscal years; and

•any of our directors, executive officers or holders of more than 5% of our capital stock, or any member of the immediate family of the foregoing persons, had or will have a direct or indirect material interest.

Compensation arrangements for our named executive officers and directors are described in the section entitled “Executive Compensation.” There were no other related party transactions identified.

Director Independence

Our common stock is listed on The Nasdaq Capital Market. Under the Nasdaq Listing Rules, independent directors must comprise a majority of our Board. In addition, the Nasdaq Listing Rules require that all the members of such committees be independent. Audit committee members must also satisfy the independence criteria set forth in Rule 10A-3 under the Securities Exchange Act of 1934, as amended, or the Exchange Act. Compensation committee members must also satisfy the independence criteria established by the Nasdaq Listing Rules in accordance with Rule 10C-1 under the Exchange Act. Under the Nasdaq Listing Rules, a director will only qualify as an “independent director” if, among other qualifications, in the opinion of that company’s Board of Directors, that person does not have a relationship that would interfere with the exercise of independent judgment in carrying out the responsibilities of a director.

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Our Board undertook a review of its composition, the composition of its committees and the independence of each director. Based upon information requested from and provided by each director concerning his or her background, employment and affiliations, including family relationships, our Board has determined that Mr. Holmer, Mr. Catlin, Ms. Jacques, Dr. Jenkins, Dr. Salzmann, Dr. Altmeyer, and Dr. Ben do not have a relationship that would interfere with the exercise of independent judgment in carrying out the responsibilities of a director and that each of these directors is “independent” as that term is defined under the Nasdaq Listing Rules and the SEC.

In making this determination, our Board considered the relationships that each non-employee director has with our Company and all other facts and circumstances our Board deemed relevant in determining their independence. We intend to comply with the other independence requirements for committees within the time periods specified above.

Indemnification Agreements

We have entered into indemnification agreements with our directors and executive officers whereby we have agreed to indemnify those directors and officers to the fullest extent permitted by law, including indemnification against expenses and liabilities incurred in legal proceedings to which the director or officer was, or is threatened to be made, a party by reason of the fact that such director or officer is or was a director, officer, employee or agent of our Company, provided that such director or officer acted in good faith and in a manner that the director or officer reasonably believed to be in, or not opposed to, the best interests of our Company.

Policies and Procedures for Related Party Transactions

Our Board has adopted a policy that our executive officers, directors, nominees for election as a director, beneficial owners of more than 5% of any class of our common stock, any members of the immediate family of any of the foregoing persons and any firms, corporations or other entities in which any of the foregoing persons is employed or is a partner or principal or in a similar position or in which such person has a 5% or greater beneficial ownership interest, which we refer to collectively as related parties, are not permitted to enter into a transaction with us without the prior consent of our Board acting through the audit committee or, in certain circumstances, the chairman of the audit committee. Any request for us to enter into a transaction with a related party, in which the amount involved exceeds $100,000 and such related party would have a direct or indirect interest must first be presented to our audit committee, or in certain circumstances the chairman of our audit committee, for review, consideration and approval. In approving or rejecting any such proposal, our audit committee, or the chairman of our audit committee, is to consider the material facts of the transaction, including, but not limited to, whether the transaction is on terms no less favorable than terms generally available to an unaffiliated third party under the same or similar circumstances, the extent of the benefits to us, the availability of other sources of comparable products or services and the extent of the related party’s interest in the transaction.

Item 14. PRINCIPAL ACCOUNTANT FEES AND SERVICES

Principal Accountant Fees and Services

The following table summarizes the fees for professional services rendered by EisnerAmper LLP, our independent registered public accounting firm, for each of the last two fiscal years:

Fee Category	2023	2022
	(In thousands)
Audit Fees	$299	$221
Audit-Related Fees	—	—
Tax Fees	—	—
All Other Fees	—	—
Total Fees	$299	$221

Audit Fees

Represents fees, including out of pocket expenses, for professional services provided in connection with the audit of our annual audited financial statements and of our internal control over financial reporting, the review of our quarterly financial statements included in our Forms 10-Q, accounting consultations or advice on accounting matters necessary for the rendering of an opinion on our financial statements, services provided in connection with the offerings of our common stock and audit services provided in connection with other statutory or regulatory filings.

81

Audit-Related Fees

Audit-related fees are for services regarding financial accounting and reporting standards and other activities not explicitly related to the audit of our financial statements.

The Audit Committee is responsible for appointing, setting compensation and overseeing the work of the independent auditors. The Audit Committee has established a policy regarding pre-approval of all auditing services and the terms thereof and non-audit services (other than non-audit services prohibited under Section 10A(g) of the Exchange Act or the applicable rules of the SEC or the PCAOB) to be provided to us by the independent auditor. However, the pre-approval requirement may be waived with respect to the provision of non-audit services for us if the “de minimus” provisions of Section 10A(i)(1)(B) of the Exchange Act are satisfied.

The Audit Committee pre-approved all services provided by EisnerAmper LLP during fiscal 2023 and 2022 in accordance with the policy regarding pre-approval of all auditing services.

The Audit Committee is responsible for reviewing and discussing the audit financial statements with management, discussing with the independent registered public accountants the matters required by the applicable requirements of the PCAOB, receiving written disclosures from the independent registered public accountants required by the applicable requirements of the PCAOB regarding the independent registered public accountants’ communications with the Audit Committee concerning independence and discussing with the independent registered public accountants their independence, and recommending to the Board of Directors that the audit financial statements be included in our annual report on Form 10-K.

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PART IV

Item 15. EXHIBITS, FINANCIAL STATEMENT SCHEDULES

(a) List of Documents filed as part of this Report

(1) Consolidated Financial Statements

The financial statements and related notes, together with the report of EisnerAmper LLP (PCAOB ID: 274) appear at pages F-2 through F-28 following the Exhibit List as required by Part II, Item 8 “Financial Statements and Supplementary Data” of this Form 10-K.

(2) Financial Statement Schedules.

Schedules are omitted because they are either not required, not applicable, or the information is otherwise included.

(3) Exhibits

The Company has filed with this report or incorporated by reference herein certain exhibits as specified below pursuant to Rule 12b-32 under the Exchange Act. See Exhibit Index following the signature page to this report for a complete list of documents filed with this report.

Exhibit No.	Description
3.1	Amended and Restated Certificate of Incorporation of the Company, as amended (incorporated herein by reference to Exhibit 3.1 of the Company’s Annual Report on Form 10-K filed with the SEC on March 7, 2023).
3.2	Amended and Restated Bylaws of the Company (incorporated herein by reference to Exhibit 3.2 of the Company’s Annual Report on Form 10-K filed with the SEC on March 7, 2023).
4.1	Form of Merger Warrant (incorporated by reference to Exhibit 4.1 of the Company’s Registration Statement on Form S-1 filed with the SEC on September 3, 2014).
4.2	Form of Replacement Warrant (incorporated by reference to Exhibit 4.2 of the Company’s Registration Statement on Form S-1 filed with the SEC on September 3, 2014).
4.3	Form of Investor Warrant (incorporated by reference to Exhibit 4.3 of the Company’s Registration Statement on Form S-1 filed with the SEC on September 3, 2014).
4.4	Form of Additional Replacement Warrant (incorporated by reference to Exhibit 4.4 of the Company’s Registration Statement on Form S-1 filed with the SEC on September 3, 2014).
4.5	Form of Placement Agent Warrant (incorporated by reference to Exhibit 4.5 of the Company’s Registration Statement on Form S-1 filed with the SEC on September 3, 2014).
4.6	Registration Rights Agreement (incorporated by reference to Exhibit 4.6 of the Company’s Registration Statement on Form S-1 filed with the SEC on September 3, 2014).
4.7	Specimen Common Stock Certificate, $0.0001 par value (incorporated herein by reference to Exhibit 4.1 of the Company’s Registration Statement on Form S-3 filed with the SEC on November 10, 2015).
4.8	Warrant to Purchase Common Stock, dated as of January 26, 2018, issued to the Cystic Fibrosis Foundation (incorporated herein by reference to Exhibit 4.8 of the Company’s Annual Report on Form 10-K filed with the SEC on March 12, 2018).
4.9	Form of Warrant to Purchase Common Stock (incorporated herein by reference to Exhibit 4.1 of the Company’s Current Report on Form 8-K filed with the SEC on July 29, 2020).
4.10	Description of Capital Stock (incorporated herein by reference to Exhibit 4.10 of the Company’s Annual Report on Form 10-K filed with the SEC on March 7, 2023).

83

10.1	2014 Equity Compensation Plan (incorporated by reference to Exhibit 10.5 of the Company’s Registration Statement on Form S-1 filed with the SEC on September 3, 2014). †
10.2	Form of Incentive Stock Option Agreement (incorporated by reference to Exhibit 10.6 of the Company’s Registration Statement on Form S-1 filed with the SEC on September 3, 2014). †
10.3	Form of Non-Qualified Stock Option Agreement (incorporated by reference to Exhibit 10.7 of the Company’s Registration Statement on Form S-1 filed with the SEC on September 3, 2014). †
10.4	Form of Restricted Stock Agreement (incorporated by reference to Exhibit 10.8 of the Company’s Registration Statement on Form S-1 filed with the SEC on September 3, 2014). †
10.5	Form of Indemnification Agreement (incorporated by reference to Exhibit 10.15 of the Company’s Registration Statement on Amendment No. 1 to Form S-1 filed with the SEC on September 30, 2014). †
10.6	Award Agreement, dated April 9, 2015, between Cystic Fibrosis Foundation Therapeutics, Inc. and the Company (incorporated herein by reference to Exhibit 10.1 of the Company’s Quarterly Report on Form 10-Q filed with the SEC on May 13, 2015).#
10.7	Consulting Agreement, dated September 20, 2016, between Company and Orchestra Medical Ventures, LLC (incorporated by reference to Exhibit 10.1 of the Company’s Current Report on Form 8-K filed with the SEC on September 21, 2016).
10.8	Lease, dated May 30, 2014, between Corbus Pharmaceuticals, Inc. and River Ridge Limited Partnership (incorporated by reference to Exhibit 10.2 of the Company’s Current Report on Form 8-K filed with the SEC on November 10, 2016).
10.9	First Amendment to Lease, dated August 27, 2015, between Corbus Pharmaceuticals, Inc. and River Ridge Limited Partnership (incorporated by reference to Exhibit 10.3 of the Company’s Current Report on Form 8-K filed with the SEC on November 10, 2016).
10.10	Second Amendment to Lease, dated March 30, 2016, between Corbus Pharmaceuticals, Inc. and River Ridge Limited Partnership (incorporated by reference to Exhibit 10.4 of the Company’s Current Report on Form 8-K filed with the SEC on November 10, 2016).
10.11	Third Amendment to Lease, dated September 13, 2016, between Corbus Pharmaceuticals, Inc. and River Ridge Limited Partnership (incorporated by reference to Exhibit 10.5 of the Company’s Current Report on Form 8-K filed with the SEC on November 10, 2016).
10.12	Lease Agreement, dated August 21, 2017, by and between Corbus Pharmaceuticals, Inc. and River Ridge Limited Partnership (incorporated by reference to Exhibit 10.1 of the Company’s Current Report on Form 8-K filed with the SEC on August 22, 2017).
10.13	Guarantee, dated August 21, 2017, by Corbus Pharmaceuticals Holdings, Inc. (incorporated by reference to Exhibit 10.2 of the Company’s Current Report on Form 8-K filed with the SEC on August 22, 2017).

10.14	Cystic Fibrosis Program Related Investment Agreement, dated January 26, 2018, between Cystic Fibrosis Foundation Therapeutics, Inc. and the Company (incorporated herein by reference to Exhibit 10.33 of the Company’s Annual Report on Form 10-K filed with the SEC on March 12, 2018).#
10.15	License Agreement, dated as of September 20, 2018, between Corbus Pharmaceuticals, Inc. and Jenrin Discovery, LLC (incorporated by reference to Exhibit 10.1 of the Company’s Quarterly Report on Form 10-Q filed with the SEC on November 8, 2018).#
10.16	Lease Amendment No. 1, dated as of February 26, 2019, among River Ridge Limited Partnership, Corbus Pharmaceuticals, Inc. and Corbus Pharmaceuticals Holdings, Inc. (incorporated by reference to Exhibit 10.40 of the Company’s Annual Report on Form 10-K filed with the SEC on March 12, 2019).

84

10.17	Separation and General Release Agreement between Corbus Pharmaceuticals Holdings, Inc. and Mark Tepper, dated March 31, 2019 (incorporated by reference to Exhibit 10.1 of the Company’s Current Report on Form 8-K filed with the SEC on April 1, 2019).
10.18	Lease Amendment No. 2, dated as of October 25, 2019, among River Ridge Limited Partnership, Corbus Pharmaceuticals, Inc. and Corbus Pharmaceuticals Holdings, Inc. (incorporated by reference to Exhibit 10.1 of the Company’s Quarterly Report on Form 10-Q filed with the SEC on November 7, 2019)
10.19	Loan and Security Agreement, dated as of July 28, 2020, by and between Corbus Pharmaceuticals Holdings, Inc., Corbus Pharmaceuticals, Inc., K2 HealthVentures LLC and Ankura Trust Company, LLC (incorporated by reference to Exhibit 10.1 of the Company’s Current Report on Form 8-K filed with the SEC on July 29, 2020).
10.20	Separation and Release Agreement between the Company and Robert Discordia, dated November 30, 2020 (incorporated by reference to Exhibit 10.1 of the Company’s Current Report on Form 8-K filed with the SEC on December 4, 2020).†
10.21	License Agreement between the Company and Milky Way BioPharma, LLC, dated May 25, 2021 (incorporated by reference to Exhibit 10.1 of the Company’s Quarterly Report on Form 10-Q filed with the SEC on August 12, 2021).#
10.22	License Agreement between the Company and The Regents of the University of California, dated May 26, 2021 (incorporated by reference to Exhibit 10.2 of the Company’s Quarterly Report on Form 10-Q filed with the SEC on August 12, 2021).#
10.23	Separation and General Release Agreement between the Company and Barbara White, dated September 17, 2021 (incorporated by reference to Exhibit 10.1 of the Company’s Current Report on Form 8-K, filed with the SEC on September 22, 2021). †
10.24	Employment Agreement between the Company and Rachael Brake, effective as of December 6, 2021(incorporated herein by reference to Exhibit 10.31 of the Company’s Annual Report on Form 10-K filed with the SEC on March 8, 2022). †
10.25	Form of Fourth Amended and Restated Employment Agreement between Corbus Pharmaceuticals Holdings, Inc. and Yuval Cohen (incorporated by reference to Exhibit 10.1 of the Company’s Current Report on Form 8-K, filed with the SEC on April 15, 2022). †
10.26	Form of Fifth Amended and Restated Employment Agreement between Corbus Pharmaceuticals Holdings, Inc. and Sean Moran (incorporated by reference to Exhibit 10.1 of the Company’s Current Report on Form 8-K, filed with the SEC on April 15, 2022). †
10.27	Form of Second Amended and Restated Employment Agreement between Corbus Pharmaceuticals Holdings, Inc. and Craig Millian (incorporated by reference to Exhibit 10.1 of the Company’s Current Report on Form 8-K, filed with the SEC on April 15, 2022). †
10.28	Second Amendment to Loan and Security Agreement, dated as of July 28, 2020, by and between Corbus Pharmaceuticals Holdings, Inc., Corbus Pharmaceuticals, Inc., K2 HealthVentures LLC and Ankura Trust Company, LLC (incorporated by reference to Exhibit 10.1 of the Company’s Current Report on Form 8-K filed with the SEC on October 31, 2022).
10.29	License Agreement between the Company and CSPC Megalith Biopharmaceutical Co., Ltd. (incorporated herein by reference to Exhibit 10.29 of the Company’s Annual Report on Form 10-K filed with the SEC on March 7, 2023).
10.30	Separation and General Release Agreement between the Company and Craig Millian, dated April 24, 2023 (incorporated herein by reference to Exhibit 10.1 of the Company’s Current Report on Form 8-K filed with the SEC on April 24, 2023). †

85

10.31	Open Market Sale Agreement, dated April 7, 2020, by and between the Registrant and Jefferies LLC (incorporated by reference to Exhibit 1.2 of the Company’s Registration Statement on Form S-3 filed with the SEC on April 7, 2020).
10.32	Amendment No. 1 to Open Market Sale Agreement, dated May 31, 2023, by and between the Registrant and Jefferies LLC (incorporated by reference to Exhibit 1.3 of the Company’s Registration Statement on Form S-3 filed with the SEC on June 1, 2023).
10.33	Form of Service Agreement between Corbus International Limited and Dominic Smethurst, dated February 27, 2024.* †

21.1		List of Subsidiaries of the Company.*
23.1		Consent of EisnerAmper LLP.*
31.1		Certification of Chief Executive Officer pursuant to Rule 13a-14(a) or Rule 15d-14(a).*
31.2		Certification of Chief Financial Officer pursuant to Rule 13a-14(a) or Rule 15d-14(a).*
32.1		Certification of Chief Executive Officer pursuant to Rule 13a-14(b) or Rule 15d-14(b).**
32.2		Certification of Chief Financial Officer pursuant to Rule 13a-14(b) or Rule 15d-14(b).**
97.1		Compensation Recovery Policy.* †
101.INS	Inline	Inline XBRL Instance Document.* – the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.
101.SCH	Inline	Inline XBRL Taxonomy Extension Schema With Embedded Linkbase Documents
104		The cover page from the Company’s Annual Report on Form 10-K for the year ended December 31, 2023, has been formatted in Inline XBRL*

* Filed herewith.

** Furnished, not filed.

# Confidential treatment has been granted with respect to certain portions of this exhibit. Omitted portions have been submitted separately to the SEC.

† Indicates a management contract or compensation plan, contract or arrangement.

Item 16. FORM 10-K SUMMARY

None.

86

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	CORBUS PHARMACEUTICALS HOLDINGS, INC.
Date: March 12, 2024	By:	/s/ YUVAL COHEN
	Name:	Yuval Cohen
	Title:	Chief Executive Officer

87

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

Signature	Title	Date
/s/ YUVAL COHEN	Chief Executive Officer and Director (Principal Executive Officer)	March 12, 2024
Yuval Cohen
/s/ SEAN MORAN	Chief Financial Officer (Principal Financial and Accounting Officer)	March 12, 2024
Sean Moran
/s/ ALAN HOLMER	Director	March 12, 2024
Alan Holmer
/s/ ANNE ALTMEYER	Director	March 12, 2024
Anne Altmeyer
/s/ AVERY CATLIN	Director	March 12, 2024
Avery Catlin
/s/ RACHELLE JACQUES	Director	March 12, 2024
Rachelle Jacques
/s/ JOHN JENKINS	Director	March 12, 2024
John Jenkins
/s/ PETER SALZMANN	Director	March 12, 2024
Peter Salzmann
/s/ YONG BEN	Director	March 12, 2024
Yong Ben

88

	Page Number
Report of Independent Registered Public Accounting Firm	F-2
Corbus Pharmaceuticals Holdings, Inc. Financial Statements-December 31, 2023:
Consolidated Balance Sheets as of December 31, 2023 and 2022	F-4
Consolidated Statements of Operations and Comprehensive Loss for the Years Ended December 31, 2023 and 2022	F-5
Consolidated Statements of Stockholders’ Equity for the Years Ended December 31, 2023 and 2022	F-6
Consolidated Statements of Cash Flows for the Years Ended December 31, 2023 and 2022	F-7
Notes to Consolidated Financial Statements	F-8

F-1

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Stockholders of

Corbus Pharmaceuticals Holdings, Inc.

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of Corbus Pharmaceuticals Holdings, Inc. and subsidiaries (the “Company”) as of December 31, 2023 and 2022, and the related consolidated statements of operations and comprehensive loss, stockholders’ equity, and cash flows for each of the years then ended, and the related notes (collectively referred to as the “financial statements”). In our opinion, the financial statements present fairly, in all material respects, the consolidated financial position of the Company as of December 31, 2023 and 2022, and the consolidated results of their operations and their cash flows for each of the years then ended, in conformity with accounting principles generally accepted in the United States of America.

Basis for Opinion

These financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on the Company’s financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (“PCAOB”) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. The Company is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audits, we are required to obtain an understanding of internal control over financial reporting but not for the purpose of expressing an opinion on the effectiveness of the Company’s internal control over financial reporting. Accordingly, we express no such opinion.

Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.

Critical Audit Matter

The critical audit matter communicated below is a matter arising from the current period audit of the financial statements that was communicated or required to be communicated to the audit committee and that: (1) relates to accounts or disclosures that are material to the financial statements and (2) involved our especially challenging, subjective, or complex judgments. The communication of the critical audit matter does not alter in any way our opinion on the financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.

Accruals for Research and Development Expenses

As described in Note 3 to the financial statements, at each balance sheet date, the Company estimates its accrued pre-clinical and clinical expenses resulting from its obligations under contracts with vendors, clinical research organizations and consultants in connection with performing pre-clinical work in preparation for clinical trials, and in making that estimate, may depend on factors such as successful enrollment of certain numbers of patients, site initiation, and the completion of contract milestones. The Company accounts for research and development expenses based on services that have been performed on the Company’s behalf and estimating the level of service performed and the associated cost incurred for the service when an invoice has not been received or the Company has not otherwise been notified of the actual cost. The Company estimates the time period over which services will be performed and the level of effort to be expended in each period. The Company’s accrual for pre-clinical and clinical trial expenses of $7,020,000 is included in Accrued expenses on the December 31, 2023 consolidated balance sheet. The amounts recorded for accrued pre-clinical and clinical trial expenses represent the Company’s estimate of the unpaid pre-clinical and clinical trial expenses based on the information available to the Company at that time. The estimation of accrued pre-clinical and clinical trial expenses was also identified as a critical accounting estimate by management.

F-2

We identified the accruals for research and development expenses as a critical audit matter due to the significant judgment and estimation required by management in determining progress or state of completion of trials or services completed. This in turn led to a high degree of auditor subjectivity and significant audit effort was required in performing our procedures and evaluating audit evidence relating to estimates made by management.

Addressing the matter involved performing procedures and evaluating audit evidence in connection with forming our overall opinion on the financial statements. We obtained an understanding and evaluated the design of controls over the Company’s estimation of accrued pre-clinical and clinical trial expenses, including the process of estimating the expenses incurred to date based on the status of the pre-clinical and clinical work. Our procedures also included, among others, reading agreements and contract amendments entered into with vendors in connection with conducting pre-clinical trials, evaluating the significant assumptions described above and the methods used in developing the pre-clinical trial estimates and calculating the amounts that were unpaid at the balance sheet date. We confirmed the assumptions directly with the third parties involved in performing the research and development services on behalf of the Company, where applicable. We also made direct inquiries of financial and pre-clinical client personnel regarding status, and progress towards completion, of pre-clinical trials and the description of future commitments, and verified amounts paid to date under each contract by vouching to invoices and payment support. We also assessed the historical accuracy of management’s estimates, and compared the current estimate of expenses incurred to estimates previously made by management.

/s/ EisnerAmper LLP

We have served as the Company’s auditor since 2014.

EISNERAMPER LLP

Iselin, New Jersey

March 12, 2024

F-3

Corbus Pharmaceuticals Holdings, Inc.

Consolidated Balance Sheets

	December 31, 2023			December 31, 2022
ASSETS
Current assets:
Cash and cash equivalents	$	13,723,681		$	17,002,715
Investments		7,182,325			42,194,296
Restricted cash		192,475			192,475
Prepaid expenses and other current assets		2,447,549			791,616
Total current assets		23,546,030			60,181,102
Restricted cash		477,425			477,425
Property and equipment, net		973,214			1,613,815
Operating lease right-of-use assets		3,062,920			3,884,252
Other assets		212,804			155,346
Total assets	$	28,272,393		$	66,311,940
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Notes payable	$	300,664		$	353,323
Accounts payable		3,178,516			2,173,963
Accrued expenses		11,030,506			5,999,252
Derivative liability		39,450			36,868
Operating lease liabilities, current		1,436,723			1,280,863
Current portion of long-term debt		15,908,214			2,795,669
Total current liabilities		31,894,073			12,639,938
Long-term debt, net of debt discount		—			15,984,426
Other long-term liabilities		44,411			22,205
Operating lease liabilities, noncurrent		3,238,631			4,675,354
Total liabilities		35,177,115			33,321,923
Stockholders’ equity
Preferred stock, $0.0001 par value; 10,000,000 shares authorized, no shares issued and outstanding at December 31, 2023 and December 31, 2022. See Note 12		—			—
Common stock, $0.0001 par value; 300,000,000 shares authorized, 4,423,683 and 4,171,297 shares issued and outstanding at December 31, 2023 and December 31, 2022, respectively		442			417
Additional paid-in capital		429,780,375			425,196,359
Accumulated deficit		(436,683,983	)		(392,080,667	)
Accumulated other comprehensive loss		(1,556	)		(126,092	)
Total stockholders’ (deficit) equity		(6,904,722	)		32,990,017
Total liabilities and stockholders’ equity	$	28,272,393		$	66,311,940

The accompanying notes are an integral part of these Consolidated Financial Statements.

F-4

Corbus Pharmaceuticals Holdings, Inc.

Consolidated Statements of Operations and Comprehensive Loss

	For the Year Ended December 31,
	2023			2022
Operating expenses:
Research and development		31,167,660			16,136,826
General and administrative		13,909,641			18,698,619
Litigation settlement		—			5,000,000
Total operating expenses		45,077,301			39,835,445
Operating loss		(45,077,301	)		(39,835,445	)
Other income (expense), net:
Other income (expense), net		3,389,440			(48,773	)
Interest income (expense), net		(2,923,974	)		(2,132,091	)
Change in fair value of derivative liability		(2,582	)		96,842
Foreign currency transaction gain (loss), net		11,101			(427,436	)
Other income (expense), net		473,985			(2,511,458	)
Net loss	$	(44,603,316	)	$	(42,346,903	)
Net loss per share, basic and diluted	$	(10.31	)	$	(10.15	)
Weighted average number of common shares outstanding, basic and diluted		4,327,568			4,170,675
Comprehensive loss:
Net loss	$	(44,603,316	)	$	(42,346,903	)
Other comprehensive income (loss):
Change in unrealized gain (loss) on marketable debt securities		124,536			(63,647	)
Total other comprehensive income (loss)		124,536			(63,647	)
Total comprehensive loss	$	(44,478,780	)	$	(42,410,550	)

The accompanying notes are an integral part of these Consolidated Financial Statements.

F-5

Corbus Pharmaceuticals Holdings, Inc.

Consolidated Statements of Stockholders’ Equity

	For the Year Ended December 31, 2023
	Mezzanine Equity		Stockholders' Equity
	Series A Redeemable Preferred Stock		Common Stock		Additional Paid-in	Accumulated	Accumulated Other Comprehensive	Total Stockholders’
	Shares	Amount	Shares	Amount	Capital	Deficit	Loss	Equity
Balance at December 31, 2021	—	$—	4,169,631	$416	$418,903,820	$(349,733,764)	$(62,445)	$69,108,027
Issuance of common stock, net of issuance costs of $0	—	—	1,666	1	—	—	—	1
Issuance of Series A Redeemable Preferred Stock	1,002,247	100	—	—	(100)	—	—	0
Redemption of Series A Redeemable Preferred Stock	(1,002,247)	(100)	—	—	—	—	—	(100)
Stock-based compensation expense	—	—	—	—	5,719,637	—	—	5,719,637
Change in fair value of debt conversion feature	—	—	—	—	573,002	—	—	573,002
Change in unrealized gain (loss) on marketable debt securities	—	—	—	—	—	—	(63,647)	(63,647)
Net loss	—	—	—	—	—	(42,346,903)	—	(42,346,903)
Balance at December 31, 2022	—	$—	4,171,297	$417	$425,196,359	$(392,080,667)	$(126,092)	$32,990,017
Issuance of common stock, net of issuance costs of $5,218	—	—	14,106	1	109,141	—	—	109,142
Issuance of common stock upon conversion of K2 Loan and Security Agreement	—	—	194,444	19	874,981	—	—	875,000
Issuance of common stock upon exercise of stock options	—	—	43,836	5	129,740	—	—	129,745
Stock-based compensation expense	—	—	—	—	3,470,154	—	—	3,470,154
Change in unrealized gain (loss) on marketable debt securities	—	—	—	—	—	—	124,536	124,536
Net loss	—	—	—	—	—	(44,603,316)	—	(44,603,316)
Balance at December 31, 2023	—	$—	4,423,683	$442	$429,780,375	$(436,683,983)	$(1,556)	$(6,904,722)

The accompanying notes are an integral part of these Consolidated Financial Statements.

F-6

Corbus Pharmaceuticals Holdings, Inc.

Consolidated Statements of Cash Flows

	Year ended December 31,
	2023			2022
Cash flows from operating activities:
Net loss	$	(44,603,316	)	$	(42,346,903	)
Adjustments to reconcile net loss to net cash used in operating activities:
Stock-based compensation expense		3,470,154			5,719,637
Depreciation and amortization		640,601			762,995
Net amortization on (discount) premium of investments		(506,166	)		124,875
(Gain) loss on foreign currency transaction		(23,730	)		648,520
Amortization of debt discount		824,381			742,478
Realized loss on investments		713			178,222
Change in fair value of derivative liability		2,582			(96,842	)
Loss on sale of property and equipment		—			21,235
Changes in operating assets and liabilities:
(Increase) decrease in prepaid expenses and other current assets		(1,470,445	)		1,573,394
Increase in other assets		(57,458	)		(108,961	)
Decrease in operating lease right-of-use asset		821,331			724,858
Increase (decrease) in accounts payable		1,028,283			(256,835	)
Increase (decrease) in accrued expenses		5,031,254			(4,094,160	)
Increase in other long-term liabilities		22,206			-
Decrease in operating lease liabilities		(1,280,863	)		(1,136,948	)
Net cash used in operating activities		(36,100,473	)		(37,544,435	)
Cash flows from investing activities:
Purchases of investments		(33,884,689	)		(86,341,894	)
Proceeds from sales and maturities of investments		69,526,650			116,421,376
Purchases of property and equipment		—			(13,449	)
Proceeds from sale of property and equipment		—			8,100
Net cash provided by investing activities		35,641,961			30,074,133
Cash flows from financing activities:
Proceeds from issuance of notes payable		373,320			452,250
Repayment of notes payable		(425,980	)		(866,865	)
Proceeds from issuance of long-term borrowings		—			1,381,729
Repayment of long-term borrowings		(2,821,262	)		(1,500,729	)
Proceeds from issuance of common stock		244,302			—
Issuance costs paid for common stock financings		(190,902	)		—
Net cash used in financing activities		(2,820,522	)		(533,615	)
Net decrease in cash, cash equivalents, and restricted cash		(3,279,034	)		(8,003,917	)
Cash, cash equivalents, and restricted cash at beginning of the year		17,672,615			25,676,532
Cash, cash equivalents, and restricted cash at end of the year	$	14,393,581		$	17,672,615
Supplemental disclosure of cash flow information and non-cash transactions:
Cash paid during the period for interest	$	2,607,474		$	1,969,583
Issuance of common stock for conversion of convertible debt	$	875,000		$	-
Write off of fully depreciated property and equipment	$	178,492		$	-

The accompanying notes are an integral part of these Consolidated Financial Statements.

F-7

Corbus Pharmaceuticals Holdings, Inc.

Notes to Consolidated Financial Statements

December 31, 2023 and 2022

1.NATURE OF OPERATIONS

Business

Corbus Pharmaceuticals Holdings, Inc. (the "Company" or "Corbus") is a precision oncology company with a diversified portfolio and is committed to helping people defeat serious illness by bringing innovative scientific approaches to well-understood biological pathways. Corbus’ pipeline is comprised of two experimental drugs targeting solid tumors: CRB-701, a next-generation ADC that targets the expression of Nectin-4 on cancer cells to release a cytotoxic payload and CRB-601, an anti-integrin monoclonal antibody that blocks the activation of TGFβ expressed on cancer cells. The pipeline also includes CRB-913, a highly peripherally restricted CB1 receptor inverse agonist for the treatment of obesity. Since its inception, the Company has devoted substantially all of its efforts to business planning, research and development, recruiting management and technical staff, acquiring operating assets and raising capital. The Company’s business is subject to significant risks and uncertainties and the Company will be dependent on raising substantial additional capital before it becomes profitable, and it may never achieve profitability.

2.LIQUIDITY

The accompanying consolidated financial statements have been prepared assuming the Company will continue as a going concern, which contemplates continuity of operations, realization of assets and the satisfaction of liabilities and commitments in the normal course of business. The Company has incurred recurring losses since inception and as of December 31, 2023, had an accumulated deficit of approximately $436,684,000. The Company anticipates operating losses to continue for the foreseeable future due to, among other things, costs related to research funding, development of its product candidates and its pre-clinical and clinical programs, strategic alliances, and the development of its administrative organization. The Company expects the cash, cash equivalents, and investments of approximately $20,906,000 at December 31, 2023 together with net proceeds raised from the sale of its common stock under the Open Market Sales Agreement and the January 2024 Public Offering of approximately $109,000,000 after deducting commissions and other offering expenses payable by the Company will be sufficient to meet its operating and capital requirements at least 12 months from the issuance of these consolidated financial statements.

The source, timing and availability of any future financing will depend principally upon market conditions, and, more specifically, on the progress of the Company’s clinical development programs. Funding may not be available when needed, at all, or on terms acceptable to the Company. Lack of necessary funds may require the Company to, among other things, delay, scale back or eliminate some or all of the Company’s planned clinical or pre-clinical trials.

On May 31, 2023, the Company entered into the Open Market Sale Agreement with Jefferies, as sales agent, pursuant to which the Company may issue and sell, from time to time, through Jefferies, shares of its common stock, and pursuant to which Jefferies may sell its common stock by any method permitted by law deemed to be an “at-the-market offering” as defined by Rule 415(a)(4) promulgated under the Securities Act of 1933, as amended. The Company will pay Jefferies a commission of 3.0% of the aggregate gross proceeds from each sale of common stock and have agreed to provide Jefferies with customary indemnification and contribution rights. The Company has also agreed to reimburse Jefferies for certain specified expenses. As of June 13, 2023, the Company was authorized to offer and sell up to $16,800,000 of its common stock pursuant to the Open Market Sale Agreement. During the year ended December 31, 2023, the Company sold 14,106 shares of its common stock for which the Company received gross proceeds of approximately $114,000, less issuance costs incurred of approximately $5,200 (see Note 13).

As of January 29, 2024, the Company was authorized to offer and sell up to $75,000,000 of its common stock pursuant to the Open Market Sale Agreement, an increase from the previous Prospectus filed on June 13, 2023 for $16,800,000. Through January 29, 2024, the Company has sold approximately $21,237,000 in aggregate gross proceeds of shares of its common stock under the Open Market Sale Agreement.

F-8

On January 30, 2024, the Company delivered written notice to Jefferies suspending and terminating the ATM Prospectus Supplement, related to its common stock issuable pursuant to the Open Market Sale Agreement, pursuant to the terms of the Open Market Sale Agreement. The Company will not make any sales of its securities pursuant to the Open Market Sale Agreement, unless and until a new shelf registration statement and prospectus supplement are filed. Other than the termination of the ATM Prospectus Supplement, the Open Market Sale Agreement remains in full force and effect.

On January 31, 2024, the Company entered into an underwriting agreement with Jefferies, as representative of the several underwriters, relating to an underwritten public offering of 4,325,000 shares of the Company’s common stock, par value $0.0001, at a price to the public of $19.00 per share. The Underwriters were also granted a 30-day option to purchase up to an additional 648,750 shares of Common Stock at the public offering price. On January 31, 2024, the Representative gave notice to the Company of the Underwriters’ election to exercise the option to purchase additional shares, in full. On February 2, 2024, the Company completed the public offering raising gross proceed of approximately $94,500,000 and net proceeds of $88,500,000 after deducting underwriting discounts and commissions and other estimated offering expenses payable by the Company.

3.SIGNIFICANT ACCOUNTING POLICIES

A summary of the significant accounting policies followed by the Company in the preparation of the consolidated financial statements is as follows:

Basis of Presentation

The accompanying financial statements have been prepared in accordance with U.S. GAAP.

Reverse Stock Split

On February 14, 2023, the Company completed a 1-for-30 reverse stock split of its outstanding common stock (the “Reverse Stock Split”). The Reverse Stock Split did not change the number of authorized shares of common stock or par value. All references in these consolidated financial statements to shares, share prices, exercise prices, and other per share information in all periods have been adjusted, on a retroactive basis, to reflect the Reverse Stock Split (see Note 13).

Consolidation

The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All significant intercompany transactions and accounts have been eliminated in consolidation.

Use of Estimates

The process of preparing financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates and changes in estimates may occur. The most significant estimates are related to stock-based compensation expense (See Note 14), the accrual of research, product development and clinical obligations (see Note 10), and the valuation of warrants (see Note 9 and Note 15).

Cash, Cash Equivalents, and Restricted Cash

The Company considers only those investments which are highly liquid, readily convertible to cash, and that mature within 90 days from the date of purchase to be cash equivalents. At December 31, 2023 and 2022, cash equivalents were comprised of money market funds, commercial paper, and other debt securities with maturities less than 90 days from the date of purchase.

Restricted cash as of December 31, 2023 included security for a stand-by letter of credit issued in favor of a landlord for $669,900 of which $192,475 was classified in current assets and $477,425 was classified in noncurrent assets as of December 31, 2023.

F-9

Cash, cash equivalents, and restricted cash consist of the following:

	December 31, 2023	December 31, 2022
Cash	$4,028,733	$3,805,156
Cash equivalents	9,694,948	13,197,559
Cash and cash equivalents	13,723,681	17,002,715
Restricted cash, current	192,475	192,475
Restricted cash, noncurrent	477,425	477,425
Restricted cash	669,900	669,900
Total cash, cash equivalents, and restricted cash shown in the statement of cash    flows	$14,393,581	$17,672,615

As of December 31, 2023, all of the Company’s cash and cash equivalents was held in the U.S., except for approximately $3,772,000 of cash which was held in its subsidiaries in the United Kingdom and Australia. As of December 31, 2022, all of the Company’s cash and cash equivalents was held in the U.S., except for approximately $2,805,000 of cash which was held in its subsidiaries in the United Kingdom and Australia.

Investments

Investments consist of debt securities with maturities greater than 90 days at their acquisition date. The Company classifies any of its investments with maturities beyond one year as current, based on their highly liquid nature and because such investments represent the investment of cash that is available for current operations.

The Company classifies all of its marketable debt securities as available-for-sale securities. The Company’s marketable debt securities are measured and reported at fair value using quoted prices in active markets for similar securities. Unrealized gains and losses on available-for-sale debt securities that are not related to credit losses are reported as accumulated other comprehensive gain or loss, which is a separate component of stockholders’ equity. The cost of debt securities sold is determined on a specific identification basis, and realized gains and losses are included in other income (expense), net in the consolidated statements of operations and comprehensive loss.

The Company evaluates its marketable debt securities with unrealized losses for impairment. When assessing marketable debt securities for potential impairment, the Company considers available evidence, including the extent to which fair value is less than cost, whether an allowance for credit loss is required, and adverse factors that could affect the value of the securities. An impairment has occurred if the Company does not expect to recover the entire amortized cost basis of the marketable debt security. If the Company does not intend to sell the impaired debt security and it is not more likely than not required to sell the debt security before the recovery of its amortized cost basis, the amount of the impairment related to credit losses is recognized in an allowance for credit losses with an offsetting entry to Other income (expense), net. The remaining portion of the impairment related to other factors is recognized in Other comprehensive loss. Realized gains and losses for debt securities are included in Other income (expense), net. No such adjustments were necessary during the periods presented.

Concentrations of Credit Risk

The Company has no significant off-balance sheet concentration of credit risk such as foreign exchange contracts, option contracts or other hedging arrangements. The Company may, from time to time, have cash in its U.S. banks in excess of Federal Deposit Insurance Corporation insurance limits and in its foreign banks in excess of their local insurance limits. However, the Company believes the risk of loss is minimal as these banks are large financial institutions.

Financial Instruments

The carrying values of the notes payable and debt approximate their fair value due to the fact that they are at market terms.

F-10

Fair Value Measurements

The valuation of the Company’s debt and embedded derivatives are determined primarily by an income approach that considers the present value of net cash flows of the debt with and without prepayment and default features. These embedded debt features, which are determined to be classified as derivative liabilities are marked-to-market each reporting period, with a corresponding non-cash gain or loss charged to the current period. As such, fair value is a market-based measurement that should be determined based on assumptions that market participants would use in pricing an asset or liability. As a basis for considering such assumptions, there exists a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value as follows:

Level 1 – Unadjusted quoted prices in active markets for identical assets or liabilities that the Company has the ability to access as of the measurement date

Level 2 – Inputs other than quoted prices included within Level 1 that are directly observable for the asset or liability or indirectly observable through corroboration with observable market data

Level 3 – Unobservable inputs for the asset or liability only used when there is little, if any, market activity for the asset or liability at the measurement date

The Company’s investments, debt, and its derivative liabilities are carried at fair value determined according to the fair value hierarchy described above. The carrying values of the Company’s prepaid expenses and other current assets and accrued expenses approximate their fair values due to the short-term nature of these assets and liabilities.

To determine the fair value of our embedded derivatives, management evaluates assumptions regarding the probability of certain future events. Other factors used to determine fair value include the discount rate, risk-free interest rate, and derivative term. The fair value recorded for the derivative liability varies from period to period. This variability may result in the actual derivative liability for a period either above or below the estimates recorded on our consolidated financial statements, resulting in fluctuations in other income (expense) because of the corresponding non-cash gain or loss recorded.

Property and Equipment

The estimated life for the Company’s property and equipment is as follows: three years for computer hardware and software and three to five years for office furniture and equipment. The Company’s leasehold improvements and assets under capital lease are amortized over the shorter of their useful lives or the respective leases. See Note 7 for details of property and equipment and Note 8 for operating and capital lease commitments.

Leases

The Company determines if an arrangement is a lease at inception. Operating leases are included in operating lease right-of-use (“ROU”) assets and operating lease liabilities current and noncurrent in the Company’s consolidated balance sheets.

ROU assets represent the Company’s right to use an underlying asset for the lease term and lease liabilities represent its obligation to make lease payments arising from the lease. ROU assets and liabilities are recognized at commencement date based on the present value of lease payments over the lease term. As the Company’s leases do not provide an implicit rate, the Company uses an incremental borrowing rate based on the information available at commencement date in determining the present value of lease payments. This is the rate the Company would have to pay if borrowing on a collateralized basis over a similar term to each lease. The ROU asset also includes any lease payments made and excludes lease incentives. Lease expense for lease payments is recognized on a straight-line basis over the lease term.

The Company has subleased a portion of its leased facility under an agreement considered to be an operating lease according to U.S. GAAP. The Company has not been legally released from its primary obligations under the original lease and therefore it continues to account for the original lease as it did before commencement of the sublease. The Company will record both fixed and variable payments received from the sublessee in its statement of operations on a straight-line basis as an offset to rent expense.

F-11

Accruals for Research and Development Expenses and Clinical Trials

As part of the process of preparing its financial statements, the Company is required to estimate its expenses resulting from its obligations under contracts with vendors, clinical research organizations and consultants and under clinical site agreements in connection with conducting clinical trials. The financial terms of these contracts are subject to negotiations, which vary from contract to contract and may result in payment terms that do not match the periods over which materials or services are provided under such contracts. The Company’s objective is to reflect the appropriate expenses in its financial statements by matching those expenses with the period in which services are performed and efforts are expended. The Company accounts for these expenses according to the timing of various aspects of the expenses. The Company determines accrual estimates by taking into account discussions with applicable internal personnel and outside service providers as to the progress of clinical trials, or the services completed. During the course of a clinical trial, the Company adjusts its clinical expense recognition if actual results differ from its estimates. The Company makes estimates of its accrued expenses as of each balance sheet date based on the facts and circumstances known to it at that time. The Company’s clinical trial accruals are dependent upon the timely and accurate reporting of contract research organizations ("CROs") and other third-party vendors. Although the Company does not expect its estimates to be materially different from amounts actually incurred, its understanding of the status and timing of services performed relative to the actual status and timing of services performed may vary and may result in it reporting amounts that are too high or too low for any particular period. For the years ended December 31, 2023 and 2022, there were no material adjustments to the Company’s prior period estimates of accrued expenses for clinical trials.

Revenue Recognition

We recognize revenue in accordance with Accounting Standards Codification (“ASC”) 606, Revenue from Contracts with Customers (“ASC 606”), which applies to all contracts with customers, except for contracts that are within the scope of other standards, such as leases, insurance, collaboration arrangements, and financial instruments. Under ASC 606, we recognize revenue when our customer obtains control of promised goods or services, in an amount that reflects the consideration which we expect to receive in exchange for those goods or services. To determine revenue recognition for arrangements that we determine are within the scope of ASC 606, we perform the following five steps: (i) identify the contract(s) with a customer; (ii) identify the performance obligations in the contract; (iii) determine the transaction price; (iv) allocate the transaction price to the performance obligations in the contract; and (v) recognize revenue when (or as) we satisfy a performance obligation. At contract inception, once the contract is determined to be within the scope of ASC 606, we assess the goods or services promised within each contract and determine those that are performance obligations and assess whether each promised good or service is distinct. We then recognize as revenue the amount of the transaction price that is allocated to the respective performance obligation when (or as) the performance obligation is satisfied. No revenue was recognized in the years ending December 31, 2023 and December 31, 2022.

Research and Development Expenses

Costs incurred for research and development are expensed as incurred.

Nonrefundable advance payments for goods or services that have the characteristics that will be used or rendered for future research and development activities pursuant to executory contractual arrangements with third-party research organizations are deferred and recognized as an expense as the related goods are delivered or the related services are performed.

Asset Acquisitions

We account for asset acquisitions under the accounting standards for business combinations and research and development, as applicable. In-process research and development acquired in an asset acquisition is expensed immediately unless there is an alternative future use. Subsequent payments made for the achievement of milestones are evaluated to determine whether they have an alternative future use or should be expensed.

F-12

Segment Information

Operating segments are identified as components of an enterprise about which separate discrete financial information is available for evaluation by the chief operating decision maker, or decision-making group, in making decisions regarding resource allocation and assessing performance. To date, the Company has viewed its operations and manages its business as principally one operating segment, which is developing and commercializing therapeutics for cancer and obesity. As of December 31, 2023, all of the Company’s assets were located in the U.S., except for approximately $3,772,000 of cash and cash equivalents and $1,192,000 of prepaid expenses and other assets which were held outside of the U.S., principally in its subsidiary in the United Kingdom. As of December 31, 2022, all of the Company’s assets were located in the U.S., except for approximately $2,805,000 of cash and cash equivalents and $136,000 of prepaid expenses and other assets which were held outside of the U.S., principally in its subsidiary in the United Kingdom.

Income Taxes

For federal and state income taxes, deferred tax assets and liabilities are recognized based upon temporary differences between the financial statement and the tax basis of assets and liabilities. Deferred income taxes are based upon prescribed rates and enacted laws applicable to periods in which differences are expected to reverse. A valuation allowance is recorded to reduce a net deferred tax benefit when it is not more likely than not that the tax benefit from the deferred tax assets will be realized. Accordingly, given the cumulative losses since inception, the Company has provided a valuation allowance equal to 100% of the deferred tax assets in order to eliminate the deferred tax assets amounts.

Tax positions taken or expected to be taken in the course of preparing the Company’s tax returns are required to be evaluated to determine whether the tax positions are “more-likely-than-not” of being sustained by the applicable tax authority. Tax positions not deemed to meet a more-likely-than-not threshold, as well as accrued interest and penalties, if any, would be recorded as a tax expense in the current year. There were no uncertain tax positions that require accrual or disclosure to the financial statements as of December 31, 2023 or 2022.

Impairment of Long-lived Assets

The Company continually monitors events and changes in circumstances that could indicate that carrying amounts of long-lived assets may not be recoverable. An impairment loss is recognized when expected undiscounted cash flows of an asset are less than an asset’s carrying value. Accordingly, when indicators of impairment are present, the Company evaluates the carrying value of such assets in relation to the operating performance and future undiscounted cash flows of the underlying assets. An impairment loss equal to the excess of the fair value of the asset over its carrying amount, is recorded when it is determined that the carrying value of the asset may not be recoverable. The Company notes no impairment charges were taken in 2023 or 2022. See Note 8 for more details on sublease agreement.

Stock-based Compensation

The Company recognizes compensation costs resulting from the issuance of stock-based awards, including stock options and restricted stock units (“RSUs”), to employees, non-employees, and directors as an expense in the statements of operations and comprehensive loss over the service period based on a measurement of fair value for each stock-based award. The fair value of each stock option grant is estimated as of the date of grant using the Black-Scholes option-pricing model. The fair value of restricted stock units is the quoted closing market price per share on the grant date. Forfeitures are estimated on the grant date based on historical experience and management’s expectations of future forfeitures. To the extent actual forfeitures differ from the estimates, the difference is recorded as a cumulative adjustment in the period in which the estimates are revised. The fair value of each grant is amortized as compensation cost on a straight-line basis over the requisite service period of the awards, which is generally the vesting period.

Foreign Currency

Transaction gains and losses arising from currency exchange rate fluctuations on transactions denominated in a currency other than the U.S. Dollar functional currency are recorded in Other income (expense), net in the Company’s statements of operations and comprehensive loss. Such transaction gains and losses may be realized or unrealized depending upon whether the transaction settled during the period or remains outstanding at the balance sheet date. The functional currency of the Company's foreign subsidiaries is the U.S. Dollar.

F-13

Net Loss Per Common Share

Basic and diluted net loss per share of the Company’s common stock has been computed by dividing net loss by the weighted average number of shares outstanding during the period. For years in which there is a net loss, options and warrants are anti-dilutive and therefore excluded from diluted loss per share calculations. The following table sets forth the computation of basic and diluted earnings per share for the years ended December 31, 2023 and 2022:

	Year Ended December 31,
	2023			2022
Net loss	$	(44,603,316	)	$	(42,346,903	)
Weighted average number of common shares-basic		4,327,568			4,170,675
Net loss per share of common stock-basic	$	(10.31	)	$	(10.15	)

Stock options and warrants that have not been exercised and unvested restricted stock units (See Notes 14 and 15) have been excluded from the diluted calculation as all periods presented have a net loss and the impact of these securities would be anti-dilutive.

Recently Adopted Accounting Pronouncements

In June 2016, the FASB issued ASU 2016-13, Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments (“ASU 2016-13”), which requires the measurement and recognition of expected credit losses for financial assets held at amortized cost. ASU 2016-13 replaces the existing incurred loss impairment model with an expected loss model. It also eliminates the concept of other-than-temporary impairment and requires credit losses related to available-for-sale debt securities to be recorded through an allowance for credit losses rather than as a reduction in the amortized cost basis of the securities. These changes may result in earlier recognition of credit losses. In November 2018, the FASB issued ASU No. 2018-19, Codification Improvements to Topic 326, Financial Instruments—Credit Losses, which narrowed the scope and changed the effective date for non-public entities for ASU 2016-13. The FASB subsequently issued supplemental guidance within ASU No. 2019-05, Financial Instruments—Credit Losses (Topic 326): Targeted Transition Relief (“ASU 2019-05”). ASU 2019-05 provides an option to irrevocably elect the fair value option for certain financial assets previously measured at amortized cost basis. The Company's adoption of ASU 2016-13 as of January 1, 2023 had no impact on the Company's financial statements as there are no assets held at amortized cost on the balance sheet, and there are no credit losses associated with our available-for-sale debt securities.

In August 2020, the FASB issued ASU 2020-06, Debt—Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging—Contracts in Entity’s Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity which is intended to simplify various aspects of U.S. GAAP for certain financial instruments with characteristics of liabilities and equity. The Company's early adoption of ASU 2020-06 as of January 1, 2023 had no impact on the Company's financial statements and disclosures.

Recently Issued Accounting Pronouncements

The Company considers the applicability and impact of all ASUs. Management determined that although recently issued ASUs may enhance disclosures, the ASUs are not expected to have a material impact on its consolidated financial statements.

4. INVESTMENTS

The following table summarizes the Company’s investments as of December 31, 2023:

	Amortized Cost	Gross Unrealized Gain	Gross Unrealized Losses	Fair Value
Debt Securities:
Corporate debt securities	$7,183,066	$679	$(1,420)	$7,182,325
Total	$7,183,066	$679	$(1,420)	$7,182,325

F-14

The following table summarizes the amortized cost and fair value of the Company’s available-for-sale marketable debt securities by contractual maturity as of December 31, 2023 (in thousands):

	Amortized Cost	Fair Value
Maturing in one year or less	$7,183,066	$7,182,325
	$7,183,066	$7,182,325

The following table summarizes the Company’s investments as of December 31, 2022:

	Amortized Cost	Gross Unrealized Gain	Gross Unrealized Losses	Fair Value
Debt Securities:
Commercial paper	$12,173,980	$—	$—	$12,173,980
Corporate debt securities	30,146,060	—	(125,744)	30,020,316
Total	$42,320,040	$—	$(125,744)	$42,194,296

The following table summarizes the amortized cost and fair value of the Company’s available-for-sale marketable debt securities by contractual maturity as of December 31, 2022:

	Amortized Cost	Fair Value
Maturing in one year or less	$42,320,040	$42,194,296
	$42,320,040	$42,194,296

5. FAIR VALUE OF FINANCIAL ASSETS AND LIABILITIES

The following tables present information about the Company’s financial assets and liabilities measured at fair value on a recurring basis and indicate the level of the fair value hierarchy utilized to determine such fair values as of December 31, 2023:

	Level 1	Level 2	Level 3	Total
Assets:
Cash Equivalents:
Money market funds	$7,832,675	$—	$—	$7,832,675
Corporate debt securities	—	1,862,273	—	1,862,273
Investments:
Corporate debt securities	—	7,182,325	—	7,182,325
	$7,832,675	$9,044,598	$—	$16,877,273
Liabilities:
Derivative liabilities	$—	$—	$39,450	$39,450

F-15

The following tables present information about the Company’s financial assets and liabilities measured at fair value on a recurring basis and indicate the level of the fair value hierarchy utilized to determine such fair values as of December 31, 2022:

	Level 1	Level 2	Level 3	Total
Assets:
Cash Equivalents:
Money Market funds	$8,470,790	$—	$—	$8,470,790
Commercial paper	—	1,494,538	—	1,494,538
Corporate debt securities	—	3,232,231	—	3,232,231
Investments:
Commercial paper	—	12,173,980	—	12,173,980
Corporate debt securities	—	30,020,316	—	30,020,316
	$8,470,790	$46,921,065	$—	$55,391,855
Liabilities:
Derivative liabilities	$—	$—	$36,868	$36,868

6.LICENSE AGREEMENTS

The Company entered into a license agreement (the “Jenrin License Agreement”) with Jenrin Discovery, LLC (“Jenrin”), a privately held Delaware limited liability company, effective September 20, 2018. Pursuant to the Jenrin License Agreement, Jenrin granted the Company exclusive worldwide rights to develop and commercialize the Licensed Products (as defined in the Jenrin Agreement) which includes the Jenrin library of over 600 compounds and multiple issued and pending patent filings. The compounds are designed to treat inflammatory and fibrotic diseases by targeting the endocannabinoid system.

In consideration of the license and other rights granted by Jenrin, the Company paid Jenrin a $250,000 upfront cash payment and is obligated to pay potential milestone payments to Jenrin totaling up to $18,400,000 for each compound it elects to develop based upon the achievement of specified development and regulatory milestones. In addition, Corbus is obligated to pay Jenrin royalties in the mid, single digits based on net sales of any Licensed Products, subject to specified reductions.

The Company entered into a license agreement (the “Milky Way License Agreement”) with Milky Way BioPharma, LLC (“Milky Way”), a subsidiary of Panorama Research Inc., effective May 25, 2021. Pursuant to the Milky Way License Agreement, the Company received an exclusive license, under certain patent rights and know-how owned or controlled by Milky Way, to develop, commercialize, and otherwise exploit products containing antibodies against integrin αvβ6 and/or integrin αvβ8 (“Licensed Products”), one of which the Company is referring to as CRB-602. Under the terms of the Milky Way License Agreement, the Company will have sole responsibility for research, development, and commercialization of any Licensed Products, and Company has agreed to use commercially reasonable efforts to perform these activities. The Milky Way Agreement may be terminated earlier in specified situations, including termination for material breach or termination by Corbus with advance notice. A notice of termination without reason was executed by Corbus and sent to Milky Way BioPharma, LLC on January 25, 2024.

The Company entered into a license agreement (the “UCSF License Agreement”) with the Regents of the University of California (“The Regents”) effective May 26, 2021. Pursuant to the UCSF License Agreement, the Company received an exclusive license to certain patents relating to humanized antibodies against integrin αvβ8, one of which the Company is referring to as CRB-601, along with non-exclusive licenses to certain related know-how and materials. The Company amended the UCSF License Agreement with The Regents effective November 17, 2022 adding additional antibody patents to the agreement.

In consideration for the license and other rights granted to the Company under the UCSF License Agreement, the Company paid The Regents a license issue fee of $1,500,000. In consideration for the additional antibody patents granted to the Company, the Company will pay The Regents a license issue fee of $750,000, payable in two equal installments of $375,000 (first payment paid during the first quarter 2023 and the second payment due on the first anniversary of the Amendment Effective Date).

The Company further amended the UCSF License Agreement with The Regents effective August 14, 2023 to incorporate certain new technology rights and amend the payment schedule for the development milestone for the filing of patent rights and the development milestone for the filing of an IND.

F-16

In addition to the license issuance fees, the Company is obligated to pay an annual license maintenance fee, as well as up to $153,150,000 in potential milestone payments, excluding indication milestones for antibodies used for diagnostic products and services that will be an additional $50,000 for each new indication, for the achievement of certain development, regulatory, and sales milestones. In addition, the Company is also obligated to pay royalties in the lower, single digits on sales of products falling within the scope of the licensed patents, which is subject to a minimum annual royalty obligation, and a percentage share of certain payments received by Company from sublicensees or in connection with the sale of the licensed program.

The Company entered into the CSPC License Agreement with CSPC effective February 12, 2023. Pursuant to the CSPC License Agreement, the Company received an exclusive license to develop and commercialize a novel clinical stage antibody drug conjugate targeting Nectin-4, which the Company is referring to as CRB-701, in the U.S., Canada, the European Union (including the European Free Trade Area), the United Kingdom, and Australia.

In consideration for the license granted to the Company under the CSPC License Agreement, the Company will pay CSPC an upfront payment of $7,500,000 ($5,000,000 paid at signing during the first quarter 2023 followed by a $2,500,000 payment due in August 2024). The Company is obligated to pay potential milestone payments to CSPC totaling up to $130,000,000 based upon the achievement of specified development and regulatory milestones and $555,000,000 in potential commercial milestone payments. In addition, we are obligated to pay royalties in the low double digits based on net sales of any Licensed Products, as defined in the CSPC License Agreement.

The Company determined that substantially all of the fair value of the Jenrin License Agreement and CSPC License Agreement was attributable to a single in-process research and development asset which did not constitute a business. The Company determined that substantially all of the fair value of the Milky Way License Agreement and the UCSF License Agreement was attributable to separate groups of in-process research and development assets which did not constitute a business. The Company concluded that it did not have any alternative future use for the acquired in-process research and development assets. Thus, the Company recorded the various upfront payments to research and development expenses in the quarter the license deals became effective. The Company will account for the development, regulatory, and sales milestone payments in the period that the relevant milestones are achieved as either research and development expense or as an intangible asset as applicable. In the year ended December 31, 2023, the Company recorded the $7,500,000 upfront license payment to CSPC as research and development expense, which includes the $5,000,000 paid in cash up front and $2,500,000 recorded as an accrued expense. Under the UCSF License Agreement, the Company also recorded a $1,200,000 development milestone for the filing of patent rights and a $1,225,000 development milestone for the filing of the IND as research and development expense, which includes $2,325,000 in accrued expense ($300,000 currently due, $400,000 due on June 30, 2024, and $1,625,000 due on December 30, 2024) based upon an amended payment schedule.

7.PROPERTY AND EQUIPMENT

Property and equipment consisted of the following:

	December 31, 2023			December 31, 2022
Computer hardware and software	$	83,711		$	262,203
Office furniture and equipment		1,113,980			1,113,980
Leasehold improvements		3,330,855			3,330,855
Property and equipment, gross		4,528,546			4,707,038
Less: accumulated depreciation		(3,555,332	)		(3,093,223	)
Property and equipment, net	$	973,214		$	1,613,815

Depreciation expense was approximately $641,000 and $763,000 for the years ended December 31, 2023 and 2022, respectively.

8.COMMITMENTS AND CONTINGENCIES

Operating Lease Commitment

On August 21, 2017, the Company entered into a lease agreement (“August 2017 Lease Agreement”), which has been subsequently amended on February 26, 2019 (“February 2019 Lease Agreement”) and October 25, 2019 (“October 2019 Lease Amendment”) for commercial lease of office space, pursuant to which the Company has agreed to lease an aggregate total of 63,256 square feet of office space (“Total Premises”). The term of the lease is through November 30, 2026.

F-17

Per the terms of the August 2017 Lease Agreement and the February 2019 Lease Agreement, the landlord agreed to reimburse the Company for approximately $2,071,000 of leasehold improvements. The reimbursements have been deferred and will be recognized as a reduction of rent expense over the term of the lease. Additionally, the August 2017 Lease Agreement and the February 2019 Lease Agreement required a standby irrevocable letter of credit of $769,900, which will be reduced, if the Company is not in default under the agreement on the third and fourth anniversary of the commencement date and have unencumbered funds in excess of $50,000,000. As of December 31, 2023, the Company has an unsecured letter of credit for $669,900 in connection with the lease agreements.

The following table contains a summary of the lease costs recognized under ASC 842 and other information pertaining to the Company’s operating leases for the year ended December 31, 2023 and 2022:

	2023			2022
Lease cost
Operating lease cost	$	1,240,473		$	1,240,473
Total lease cost	$	1,240,473		$	1,240,473
Other information
Weighted average remaining lease term	2.8 years			3.8 years
Weighted average discount rate		8.00	%		8.00	%

Total rent expense for the years ended December 31, 2023 and 2022 was $1,700,005 and $1,652,563, respectively. Rent expense for the years ended December 31, 2023 and 2022 was offset by $226,153 and $220,531, respectively, of sublease income.

Pursuant to the terms of the Company’s non-cancelable lease agreements in effect at December 31, 2023, the following table summarizes the Company’s maturities of operating lease liabilities as of December 31, 2023:

2024	$1,747,447
2025	1,794,889
2026	1,688,145
Total lease payments	$5,230,481
Less: imputed interest	(555,127)
Total	$4,675,354

Sublease Commitment

Effective August 26, 2021, the Company entered into a sublease agreement with a third party to sublease 12,112 square feet of the 30,023 square feet currently being leased under one of its two existing lease agreements. The sublease commenced on October 1, 2021 and was scheduled to end on October 31, 2026, however, it is in the process of being terminated early. The Company notes sublease income of $226,153 and $220,531 was recognized and offset against rent expense for the years ended December 31, 2023 and 2022, respectively.

Undiscounted sublease cash inflows have been summarized in the following table:

2024	$279,585
2025	291,697
2026	252,333
Total sublease payments	$823,615

F-18

9.NOTES PAYABLE

D&O Financing

In November 2021, the Company entered into a loan agreement with a financing company for $984,375 to finance one of the Company’s insurance policies. The terms of the loan stipulate equal monthly payments of principal and interest payments of $111,041 over a nine-month period. Interest accrues on this loan at an annual rate of 3.64%. This loan was fully repaid in July 2022.

In November 2022, the Company entered into a loan agreement with a financing company for $452,250 to finance one of the Company’s insurance policies. The terms of the loan stipulate equal monthly payments of principal and interest payments of $51,387 over a nine-month period. Interest accrues on this loan at an annual rate of 5.4%. This loan was fully repaid in July 2023.

In November 2023, the Company entered into a loan agreement with a financing company for $373,320 to finance one of the Company’s insurance policies. The terms of the loan stipulate equal monthly payments of principal and interest payments of $38,741 over a ten-month period. Interest accrues on this loan at an annual rate of 8.15%. Prepaid expenses as of December 31, 2023 and December 31, 2022, included approximately $345,667 and $418,750, respectively, related to the underlying insurance policy being financed.

Loan and Security Agreement with K2 HealthVentures LLC

On July 28, 2020, the Company, with its subsidiary, Corbus Pharmaceuticals, Inc., as borrower, entered into a secured Loan and Security Agreement with K2HV, an unrelated third party, and received $20,000,000 upon signing. The loan matures on August 1, 2024 and the Company is obligated to make interest only payments for the first 24 months and then interest and equal principal payments for the next 24 months commencing on September 1, 2022. The Company entered into an Amendment to the Loan and Security Agreement (the "Amended Loan and Security Agreement") on October 25, 2022. The Amended Loan and Security Agreement defers the commencement of principal repayments by a one-year period from September 1, 2022 to September 1, 2023 and if the Company raises at least $30 million in net proceeds through capital raising transactions, the commencement of principal repayments will be deferred by an additional six months to March 1, 2024. Interest accrues at a variable annual rate equal to the greater of (i) 8.5% and (ii) the rate of interest noted in The Wall Street Journal, Money Rates section, as the “Prime Rate” plus 5.25%, in each case, subject to a step-down of 25 basis points upon the funding of the second tranche. The interest rate at December 31, 2023 was 13.75%.

In accordance with ASC Topic No. 470-50, “Debt – Modifications and Extinguishments” (Topic No. 470), the amendment noted above was determined to be a modification, thus no gain or loss was recorded.

Pursuant to the Loan and Security Agreement, K2HV may elect to convert up to $5,000,000 of the outstanding loan balance into shares of the Company’s common stock at a conversion price of $282.00 per share. The Amended Loan and Security Agreement adjusts the conversion price of $2,000,000 of the maximum $5,000,000 convertible amount by adjusting the conversion price of $875,000 of the loan from $282.00 per share to $4.50 per share, and $1,125,000 of the loan from $282.00 per share to $7.875 per share. The remaining $3,000,000 will continue to have a conversion price of $282.00 per share. The decrease in the conversion price resulted in an increase in the fair value of the conversion option of $573,000, which was recorded as an increase to the debt discount and additional paid in capital as of December 31, 2022. On June 1, 2023, K2HV converted $875,000 of the outstanding loan balance into 194,444 shares of the Company's stock at a conversion price of $4.50 per share. As of December 31, 2023, $4,125,000 of the outstanding loan balance remains available to convert into shares of the Company's common stock. On March 6, 2024, K2HV converted $1,125,000 of the outstanding loan balance into 142,857 shares of the Company's stock at a conversion price of $7.875 per share.

In connection with the Loan and Security Agreement, on July 28, 2020, the Company issued K2HV a warrant to purchase up to 2,873 common shares (the “K2 Warrant”) at an exercise price of $208.80 (the “Warrant Price”). The K2 Warrant may be exercised either for cash or on a cashless “net exercise” basis and expires on July 28, 2030. The total proceeds attributed to the K2 Warrant was approximately $472,000 based on the relative fair value of the K2 Warrant as compared to the sum of the fair values of the K2 Warrant, prepayment feature, default feature, and debt. Total proceeds attributed to the prepayment and default features was approximately $546,000. The Company also incurred approximately $1,244,000 of debt issuance costs from the Loan and Security Agreement. In connection with entering into the Amended Loan and Security Agreement, the Company incurred an additional $119,000 of debt issuance costs. The proceeds attributed to the K2 Warrant, the prepayment and default features, and the debt issuance costs are all included in the debt discount. The Company is required to make a final payment in excess of the stated principal equal to approximately $1,590,000. See Note 15 for more detail on assumptions used in the valuation of the K2 warrant and see Note 16 for more information on the assumptions used in valuation of the default and prepayment features.

F-19

The total principal amount of the loan under the Amended Loan and Security Agreement outstanding at December 31, 2023, including the $1,590,000 final payment discussed above, is $17,893,738.

Upon the occurrence of an Event of Default (as defined in the Loan and Security Agreement), and during the continuance of an Event of Default, the applicable rate of interest, described above, will be increased by 5.00% per annum. The secured term loan maturity date is August 1, 2024, and the Loan and Security Agreement includes both financial and non-financial covenants. The Company was in compliance with these covenants as of December 31, 2023. The obligations under the Loan and Security Agreement are secured on a senior basis by a lien on substantially all of the assets of the Company and its subsidiaries. The subsidiaries of the Company are guarantors of the obligations of the Company under the Loan and Security Agreement.

The total debt discount related to the Amended Loan and Security Agreement of approximately $2,954,000 is being charged to interest expense using the effective interest method over the term of the debt. At December 31, 2023 and December 31, 2022, the fair value of our outstanding debt, which is considered Level 3 in the fair value hierarchy, approximates carrying value. Interest expense for the year ended December 31, 2023 was approximately $3,810,000. Interest expense for the year ended December 31, 2022 was approximately $3,097,000.

The net carrying amounts of the liability components consists of the following:

	December 31, 2023			December 31, 2022
Principal	$	16,303,738		$	20,000,000
Less: debt discount		(2,954,390	)		(2,954,390	)
Accretion of debt discount		2,558,866			1,734,485
Net carrying amount	$	15,908,214		$	18,780,095
Less: current portion of long-term debt		(15,908,214	)		(2,795,669	)
Total long-term debt, net of discount	$	-		$	15,984,426

The following table summarizes the future principal payments, including the $1,590,000 final payment, due under the current portion of long-term debt:

Quarterly Periods Ending	Principal Payments and final payment on Loan Agreement
March 31, 2024	$2,205,970
June 30, 2024	2,279,075
September 30, 2024	13,408,693
December 31, 2024	—
Total Fiscal Year Ending 2024		17,893,738
Total		$17,893,738

10.ACCRUED EXPENSES

Accrued expenses consisted of the following:

	December 31, 2023		December 31, 2022
Accrued pre-clinical and clinical costs	$	6,274,188	$	2,137,317
Accrued product development costs		745,447		247,500
Accrued compensation		2,325,488		2,224,951
Accrued administrative costs		343,285		473,376
Accrued interest		1,342,098		916,108
Total	$	11,030,506	$	5,999,252

11.INCOME TAXES

No provision or benefit for federal or state income taxes has been recorded, as the Company has incurred a net loss for all of the periods presented, and the Company has provided a full valuation allowance against its deferred tax assets.

F-20

The components of the Company's net loss are as follows:

	December 31,
	2023	2022
United States	$(36,133,358)	$(34,842,427)
United Kingdom	(8,455,452)	(7,550,356)
Australia	(14,506)	45,880
Total	$(44,603,316)	$(42,346,903)

Our foreign subsidiaries in the United Kingdom and Australia may qualify for refundable research and development tax credits in the form of cash that were earned on certain research and development expenses incurred primarily outside of the U.S. In the years ending December 31, 2023 and 2022, the Company received refundable research and development credits from foreign tax authorities of approximately $2,687,000 and $90,000, respectively, that were recorded in other income (expense), net. No future conditions impact the recognition of these tax credits.

At December 31, 2023 and 2022, the Company had federal net operating loss carryforwards of approximately $218,633,000 and $197,846,000 respectively, of which federal carryforwards will expire in varying amounts beginning in 2029. Of the federal net operating loss carryforwards of $218,633,000, approximately $162,282,000 are from periods after 2017 and have no expiration date. Net operating loss carryforwards starting in 2021 are limited to 80% of taxable income. At December 31, 2023 and 2022, the Company had State net operating loss carryforwards of approximately $208,042,000 and $188,273,000, respectively. Utilization of net operating losses may be subject to substantial annual limitations due to the “change in ownership” provisions of the Internal Revenue Code, and similar state provisions. The annual limitations may result in the expiration of net operating losses before utilization. The Company has not yet conducted a study to determine if any such changes have occurred that could limit the Company’s ability to use the net operating losses and tax credit carryforwards. The Company also had research and development tax credit carryforwards at December 31, 2023 and 2022 of approximately $10,046,000 and $9,376,000, respectively, of which will begin to expire in varying amounts beginning in 2032.

Significant components of the Company’s net deferred tax asset are as follows:

	December 31,
	2023			2022
U.S. and state net operating loss carryforwards	$	59,092,710		$	53,438,141
Foreign net operating loss carryforwards		11,558,247			7,267,176
Tax credit carryforward		9,825,596			9,132,973
Stock-based compensation		5,819,822			8,661,477
Capitalized research and development		6,367,722			3,925,743
Accrued expenses		897,354			503,124
Other temporary differences		1,376,351			1,202,364
Subtotal		94,937,802			84,130,998
Valuation allowance		(94,937,802	)		(84,130,998	)
Net deferred tax asset	$	—		$	—

The Tax Cuts and Jobs Act (“TCJA”) requires taxpayers to capitalize and amortize research and development (“R&D”) expenditures under section 174 for tax years beginning after December 31, 2021. This rule became effective for us during 2022 and resulted in capitalized R&D costs of approximately $23,557,000 and $14,523,000 as of December 31, 2023 and December 31, 2022, respectively. We will amortize these costs for tax purposes over 5 years for R&D performed in the U.S. and over 15 years for R&D performed outside the U.S.

The Company has maintained a full valuation allowance against its deferred tax assets in all periods presented. A valuation allowance is required to be recorded when it is not more likely than not that some portion or all the net deferred tax assets will be realized. Since the Company cannot determine that it is more likely than not that it will generate taxable income, and thereby realize the net deferred tax assets, a full valuation allowance has been provided. The valuation allowance increased by approximately $10,807,000 and $8,633,000 in 2023 and 2022, respectively, due to increased net operating loss carryforwards and capitalization of R&D expenditures as required by changes to the tax laws from the TCJA as described above. The Company has no uncertain tax positions at December 31, 2023 and 2022 that would affect its effective tax rate. Since the Company is in a loss carryforward position, the Company is generally subject to U.S. federal and state income tax examinations by tax authorities for all years for which a loss carryforward is available.

F-21

Income tax benefits computed using the federal statutory income tax rate differs from the Company’s effective tax rate primarily due to the following:

	December 31,
	2023			2022
Tax provision at statutory rate		21.00	%		21.00	%
State income tax, net of federal benefit		5.94	%		5.53	%
Permanent differences		(0.28	)%		(1.72	)%
Foreign expected tax		4.46	%		4.08	%
Tax credits		2.46	%		1.87	%
Foreign income tax rate change		7.42	%		—	%
Other		(11.09	)%		(5.99	)%
Change in valuation reserve		(29.91	)%		(24.77	)%
Total		—	%		—	%

12.PREFERRED STOCK

The Company has authorized 10,000,000 shares of preferred stock, $0.0001 par value per share, of which 0 shares were issued and outstanding as of December 31, 2023 and December 31, 2022, respectively.

On October 12, 2022, the Board of Directors (the “Board”), declared a dividend of 0.008 of a share of Series A Preferred Stock (“Series A Preferred Stock”), for each outstanding share of Common Stock to stockholders of record at 5:00pm Eastern Time on October 22, 2022. The Certificate of Designation of Series A Preferred Stock was filed with the Delaware Secretary of State and became effective on October 12, 2022. The dividend was based on the number of outstanding shares of common stock prior to the Reverse Stock Split. This resulted in 1,002,247.048 shares of preferred stock being issued. The outstanding shares of Series A Preferred Stock were entitled to vote together with the outstanding shares of common stock as a single class exclusively with respect to any proposal to adopt an amendment to the Company’s Amended and Restated Certificate of Incorporation, as amended (the “Certificate of Incorporation”), to reclassify the outstanding shares of Common Stock into a smaller number of shares of Common Stock at a ratio specified in or determined in accordance with the terms of such amendment, as well as any proposal to adjourn any meeting of stockholders called for the purpose of voting on the Reverse Stock Split Proposal (the “Adjournment Proposal”).

The Company held a special meeting of stockholders on December 20, 2022 (the “Special Meeting”) for the purpose of voting on the Reverse Stock Split and the Adjournment Proposal. All shares of Series A Preferred Stock that were not present in person or by proxy at the Special Meeting, which totaled 500,894.04 shares, were automatically redeemed by the Company immediately prior to the opening of the polls at Special Meeting (the “Initial Redemption”). All shares that were not redeemed pursuant to the Initial Redemption would be redeemed if ordered by the Board or automatically upon the effectiveness of the amendment to the Certificate of Incorporation implementing the Reverse Stock Split (the "Subsequent Redemption" and together with the Initial Redemption, the "Redemption"). Each share of Series A Preferred Stock is entitled to receive $0.001 in cash for each 10 whole shares of Series A Preferred Stock immediately prior to the Redemption.

At the Special Meeting, both the Reverse Stock Split and Adjournment Proposal were approved.

Upon issuance of the Series A Preferred Stock, the Company was not solely in control of the Redemption of the shares of Series A Preferred Stock since the holders had the option of deciding whether to attend or return a proxy card for the Special Meeting, which determined whether a given holder’s shares of Series A Preferred Stock were redeemed in the Initial Redemption. Since the Redemption of the Series A Preferred Stock was not solely in the control of the Company, the shares of Series A Preferred Stock are classified within mezzanine equity. The shares of Series A Preferred Stock were initially recorded at redemption value, which approximated fair value.

After the Special Meeting upon approval of the Reverse Stock Split, the remaining 501,353.008 shares outstanding of Series A Preferred Stock were considered mandatorily redeemable and reclassified to a current liability. As of December 31, 2022, the fair value of the Series A Preferred Stock were included in accrued expenses. The Series A Preferred Stock were redeemed on February 14, 2023, upon the effectiveness of the amendment to the Certificate of Incorporation implementing the Reverse Stock Split pursuant to the terms of the Certificate of Designation of the Series A Preferred Stock.

F-22

13.COMMON STOCK

On February 14, 2023, the Company completed a 1-for-30 reverse stock split of its outstanding common stock. The Reverse Stock Split did not change the number of authorized shares of common stock or par value. All references in these consolidated financial statements to shares, share prices, exercise prices, and other per share information in all periods have been adjusted, on a retroactive basis, to reflect the Reverse Stock Split.

The Company has authorized 300,000,000 shares of common stock, $0.0001 par value per share, of which 4,423,683 and 4,171,297 shares were issued and outstanding as of December 31, 2023 and December 31, 2022, respectively.

On May 31, 2023, the Company entered into the Open Market Sale Agreement with Jefferies pursuant to which Jefferies is serving as the Company’s sales agent to sell shares of the Company’s common stock through an “at-the-market offering.” As of June 13, 2023, the Company was authorized to offer and sell up to $16,800,000 of its common stock pursuant to the Open Market Sale Agreement. During the year ended December 31, 2023, the Company sold 14,106 shares of its common stock for which the Company received gross proceeds of approximately $114,000. The Company incurred total issuance costs of approximately $295,000. These costs will be deferred to prepaid expenses and other current assets and will offset proceeds as common stock is issued. As of December 31, 2023, approximately $5,200 has been recorded to additional paid-in capital to offset proceeds. See Note 17 for additional information on shares sold subsequent to December 31, 2023. During the year ended December 31, 2022, the Company did not sell any shares of its common stock under the Open Market Sale Agreement with Jefferies.

During the years ended December 31, 2023 and 2022, the Company issued 43,836 and 0 shares of common stock upon the exercise of stock options to purchase common stock and the Company received proceeds of $129,740 and $0 from those exercises, respectively.

During the years ended December 31, 2023 and 2022, the Company issued 0 and 1,666 shares of common stock upon the vesting of restricted stock units pursuant to a professional services agreement with an investor relations service provider, respectively.

During the years ended December 31, 2023 and 2022, the Company issued 194,444 and 0 shares of common stock in a conversion pursuant to the K2HV Amended Loan and Security Agreement, respectively.

No warrants were exercised during the years ended December 31, 2023 and 2022.

14. STOCK-BASED COMPENSATION AWARDS

In April 2014, the Company adopted the Corbus Pharmaceuticals Holdings, Inc. 2014 Equity Incentive Plan (the “2014 Plan”). Pursuant to the 2014 Plan, the Company’s Board may grant incentive and nonqualified stock options and restricted stock to employees, officers, directors, consultants, and advisors.

Pursuant to the terms of an annual evergreen provision in the 2014 Plan, the number of shares of common stock available for issuance under the 2014 Plan shall automatically increase on January 1 of each year by at least seven percent (7%) of the total number of shares of common stock outstanding on December 31st of the preceding calendar year, or, pursuant to the terms of the 2014 Plan, in any year, the Board may determine that such increase will provide for a lesser number of shares.

On January 1, 2023, pursuant to an annual evergreen provision contained in the 2014 Plan, the number of shares reserved for future grants was increased by 291,991 shares, which was seven percent (7%) of the outstanding shares of common stock on December 31, 2022. As of January 1, 2023 there was a total of 1,436,558 shares reserved for issuance under the 2014 Plan and there were 741,870 shares available for future grants. Stock options issued under the 2014 Plan generally vest over 4 years from the date of grant in multiple tranches and are exercisable for up to 10 years from the date of issuance. Restricted stock units issued under the 2014 Plan generally have equal annual vesting over a 4 year period.

In accordance with the terms of the 2014 Plan, effective as of January 1, 2024, the number of shares of common stock available for issuance under the 2014 Plan increased by 309,658 shares, such amount being seven percent (7%) of the outstanding shares of common stock on December 31, 2023 (see Note 17). As of January 1, 2024, the 2014 Plan had a total reserve of 1,746,215 shares and there were 899,015 shares available for future grants.

F-23

Stock-based Compensation

In connection with all stock-based compensation awards, total non-cash, stock-based compensation expense, net of estimated forfeitures, recognized in the consolidated statements of operations and comprehensive loss for the years ended December 31, 2023 and 2022 was as follows:

	Year ended December 31,
	2023	2022
Research and development expenses	$377,734	$577,472
General and administrative expenses	3,092,420	5,142,165
Total stock-based compensation	$3,470,154	$5,719,637

The total stock-based compensation expense recognized by award type was as follows:

	Year ended December 31,
	2023	2022
Stock options	$3,456,316	$5,719,637
Restricted stock units	13,838	-
Total stock-based compensation	$3,470,154	$5,719,637

Stock Options

The fair value of each option award is estimated on the date of grant using the Black-Scholes option pricing model that uses the assumptions noted in the following table, except for the expected term for non-employees as noted in the following paragraph. The Company uses historical data, as well as subsequent events occurring prior to the issuance of the financial statements, to estimate option exercises and employee terminations in order to estimate its forfeiture rate. The expected term of employee options granted under the 2014 Plan, all of which qualify as “plain vanilla” per SEC Staff Accounting Bulletin 107, is determined based on the simplified method due to the Company’s limited operating history and is 6.25 years based on the average between the vesting period and the contractual life of the option. For non-employee options, the Company has elected to utilize the contractual term as the expected term. The risk-free rate is based on the yield of a U.S. Treasury security with a term consistent with that used to value the option.

The weighted average assumptions used principally in determining the fair value of stock options granted were as follows:

	Year ended December 31,
	2023			2022
Risk free interest rate		3.82	%		1.99	%
Expected dividend yield		0	%		0	%
Expected term in years (employee options)		6.25			6.25
Expected volatility		101.47	%		98.08	%
Estimated forfeiture rate		15.63	%		12.43	%

F-24

A summary of stock option activity for years ended December 31, 2023 and 2022 is presented below:

Stock Options	Shares	Weighted Average Exercise Price		Weighted Average Remaining Contractual Term in Years	Intrinsic Value
Outstanding at December 31, 2021	510,870	$	121.90
Granted	185,169		12.90
Exercised	—		-
Forfeited or canceled	(56,019)		107.13
Expired	(22,024)		166.53
Outstanding at December 31, 2022	617,996	$	88.99
Granted	291,151		5.15
Exercised	(43,836)		0.85
Forfeited or canceled	(155,046)		68.92
Expired	(1,503)		146.78
Outstanding at December 31, 2023	708,762	$	63.96	6.79	$	20,216,363
Exercisable at December 31, 2023	407,882	$	100.13	5.37	$	6,243,603
Vested and expected to vest at December 31, 2023	663,007	$	67.78	6.64	$	17,879,915

The weighted average grant-date fair value of stock options granted during the years ended December 31, 2023 and 2022 was $4.20 and $10.20 per share, respectively. The aggregate intrinsic value of options exercised during the years ended December 31, 2023 and 2022 was $92,689 and $0, respectively. As of December 31, 2023, there was approximately $2,769,000 of total unrecognized compensation expense, related to non-vested stock-based compensation arrangements. The unrecognized compensation expense is estimated to be recognized over a period of 1.49 years at December 31, 2023.

As summary of non-vested stock options for the years ended December 31, 2023 and 2022 is presented below:

Stock Options	Shares			Weighted Average Fair Value
Non-vested December 31, 2021		210,503		$	67.80
Granted		185,169			10.19
Vested		(107,269	)		67.54
Forfeited		(29,019	)		43.06
Non-vested at December 31, 2022		259,384		$	29.59
Granted		248,777			4.22
Vested		(116,336	)		30.49
Forfeited		(90,945	)		17.42
Non-vested at December 31, 2023		300,880		$	11.96

Restricted Stock Units

A RSU represents the right to receive one share of our common stock upon vesting of the RSU. The fair value of each RSU is based on the closing price of our common stock on the date of grant. We grant RSUs with service conditions that vest in four equal annual installments provided that the employee remains employed with us on the vesting date.

F-25

A summary of RSU activity for the years ended December 31, 2023 and 2022 is presented below:

RSUs	Number of Shares Underlying RSUs	Weighted  Average Grant Date Fair Value
Unvested at December 31, 2022	—	$—
Granted	31,076	4.84
Forfeited	(13,165)	4.44
Vested	—	—
Unvested at December 31, 2023	17,911	$5.14

As of December 31, 2023, there was $62,000 of unrecognized compensation costs related to unvested RSUs, which are expected to be recognized over a weighted average period of 3.22 years.

15. WARRANTS

No warrants were exercised during the years ended December 31, 2023 and 2022.

At December 31, 2023, there were warrants outstanding to purchase 50,207 shares of common stock with a weighted average exercise price of $283.81 and a weighted average remaining life of 1.60 years.

On January 26, 2018, the Company entered into the Cystic Fibrosis Program Related Investment Agreement (“Investment Agreement”) the Cystic Fibrosis Foundation ("CFF"), a non-profit drug discovery and development corporation, pursuant to which the Company received a development award. Pursuant to the terms of the Investment Agreement, the Company issued a warrant to CFF to purchase an aggregate of 33,334 shares of the Company’s common stock (the “CFF Warrant”) at an exercise price of $396.00 per share. The CFF Warrant is currently exercisable for 33,334 shares of the Company’s common stock and expires on January 26, 2025. Any shares of the Company’s common stock issued upon exercise of the CFF Warrant will be unregistered and subject to a one-year lock-up. The CFF Warrant is classified as equity as it meets all the conditions under U.S. GAAP for equity classification. In accordance with U.S. GAAP, the Company has calculated the fair value of the warrant for initial measurement and will reassess whether equity classification for the warrant is appropriate upon any changes to the warrants or capital structure, at each balance sheet date. The weighted average assumptions used in determining the $6,215,225 fair value of the CFF Warrant were as follows:

Risk free interest rate	2.60%
Expected dividend yield	0%
Expected term in years	7.00
Expected volatility	83.5%

On July 28, 2020, the Company entered into the Loan and Security Agreement with K2HV pursuant to which K2HV may provide the Company with term loans in an aggregate principal amount of up to $50,000,000. On July 28, 2020, in connection with the funding of $20,000,000, the Company issued a warrant exercisable for 2,873 shares of the Company’s common stock at an exercise price of $208.80 per share. The K2 warrant is immediately exercisable for 2,873 shares and expires on July 28, 2030. Any shares of the Company’s common stock issued upon exercise of the K2 Warrant are permitted to be settled in unregistered shares. The K2 Warrant is classified as equity as it meets all the conditions under U.S. GAAP for equity classification. In accordance with U.S. GAAP, the Company has calculated the fair value of the warrant for initial measurement and will reassess whether equity classification for the warrant is appropriate upon any changes to the warrants or capital structure, at each balance sheet date. The weighted average assumptions used in determining the $472,409 fair value of the K2 Warrant were as follows:

Risk free interest rate	0.60%
Expected dividend yield	0%
Expected term in years	10.00
Expected volatility	80.0%

F-26

On October 16, 2020, the Company entered into a professional services agreement with an investor relations service provider. Pursuant to the agreement, the Company issued warrants exercisable for a total of 14,000 shares of the Company’s common stock (the “Warrants”) at an exercise price of $32.10 per share. The Warrants became fully vested on October 19, 2021 and expire on November 3, 2025. Any shares of the Company’s common stock issued upon exercise of the Warrants are permitted to be settled in unregistered shares. The Warrants are classified as equity as they meet all the conditions under U.S. GAAP for equity classification. In accordance with U.S. GAAP, the Company has calculated the fair value of the warrants for initial measurement and will reassess whether classification for the warrant is appropriate upon any changes to the warrants or capital structure, at each balance sheet date. The weighted average assumptions used in determining the $334,740 fair value of the Warrants were as follows:

Risk free interest rate	0.90%
Expected dividend yield	0%
Expected term in years	5.00
Expected volatility	100.6%

16. DERIVATIVE LIABILITY

On July 28, 2020, the Company, with its subsidiary, Corbus Pharmaceuticals, Inc., as borrower, entered into the secured Loan and Security Agreement with K2HV and received $20,000,000 upon signing. The Company has determined that a prepayment feature and default feature needed to be separately valued and marked to market each reporting period after assessing the agreement under ASC 815.

The value of these features is determined each reporting period by taking the present value of net cash flows with and without the prepayment features. The significant assumption used to determine the fair value of the debt without any features is the discount rate which has been estimated by using published market rates of triple CCC rated public companies. All other inputs are taken from the Loan and Security Agreement. The additional significant assumptions used when valuing the prepayment feature is the probability of a change of control event. The Company has determined the probability from December 31, 2022 to December 31, 2023 has decreased from 35% to 10%. The additional significant assumption used when valuing the default feature is the probability of defaulting on the repayment of loan. The Company has determined the probability from December 31, 2022 to December 31, 2023 has increased from 40% to 55%. The value of these features was determined to be approximately $36,868 at December 31, 2022 and $39,450 at December 31, 2023 which resulted in $2,582 of other expense in 2023. The Company considers the fair value of the derivative liability to be Level 3 under the three-tier fair value hierarchy.

A roll forward of the fair value of the derivative liability for the year ended December 31, 2023 is presented below.

	December 31, 2023
Beginning balance, December 31, 2022	$36,868
Change in fair value of derivative liabilities	2,582
Ending balance, December 31, 2023	$39,450

17. SUBSEQUENT EVENTS

Evergreen Provision

Pursuant to the terms of an annual evergreen provision in the 2014 Plan, the number of shares of common stock available for issuance under the 2014 Plan shall automatically increase on January 1 of each year by at least seven percent (7%) of the total number of shares of common stock outstanding on December 31st of the preceding calendar year, or, pursuant to the terms of the 2014 Plan, in any year, the Board may determine that such increase will provide for a lesser number of shares. In accordance with the terms of the 2014 Plan, effective as of January 1, 2024, the number of shares of common stock available for issuance under the 2014 Plan increased by 309,658 shares, such amount being seven percent (7%) of the outstanding shares of common stock on December 31, 2023. As of January 1, 2024, the 2014 Plan had a total reserve of 1,746,215 shares and there were 899,015 shares available for future grants.

F-27

Continued Listing on The Nasdaq Capital Market

On January 8, 2024, the Staff notified the Company that it granted an extension until May 8, 2024 to regain compliance, conditioned upon achievement of certain milestones included in the plan of compliance previously submitted to the Staff, including a plan to raise additional capital.

On February 8, 2024, the Company received a notice from Nasdaq that the Company had regained compliance with the alternative continued listing standard as the Company’s market value of listed securities has been $35,000,000 or greater over the last 10 consecutive business days and that the matter was closed.

Open Market Sale Agreement

On May 31, 2023, the Company entered into the Open Market Sale Agreement with Jefferies pursuant to which Jefferies is serving as the Company’s sales agent to sell shares of the Company’s common stock through an “at-the-market offering.” As of January 29, 2024, the Company was authorized to offer and sell up to $75,000,000 of its common stock pursuant to the Open Market Sale Agreement, an increase from the previous prospectus filed on June 13, 2023 for $16,800,000. From May 31, 2023, through the date hereof, the Company has sold approximately $21,237,000 in aggregate gross proceeds of shares of its common stock under the Open Market Sale Agreement.

On January 30, 2024, the Company delivered written notice to Jefferies that it was suspending and terminating the prospectus supplement dated January 29, 2024, related to the Company’s Common Stock issuable pursuant to the Sale Agreement, pursuant to the terms of the Sale Agreement. The Company will not make any sales of its securities pursuant to the Sale Agreement, unless and until a new shelf registration statement and prospectus supplement is filed. Other than the termination of the ATM Prospectus Supplement, the Sale Agreement remains in full force and effect.

Public Offering

On January 31, 2024, the Company entered into an underwriting agreement with Jefferies, as representative of the several underwriters, relating to an underwritten public offering of 4,325,000 shares of the Company’s common stock, par value $0.0001, at a price to the public of $19.00 per share. The Underwriters were also granted a 30-day option to purchase up to an additional 648,750 shares of Common Stock at the public offering price. On January 31, 2024, the Representative gave notice to the Company of the Underwriters’ election to exercise the option to purchase additional shares, in full. On February 2, 2024, the Company completed the public offering raising gross proceed of approximately $94,500,000 and net proceeds of $88,500,000 after deducting underwriting discounts and commissions and other estimated offering expenses payable by the Company.

K2 HealthVentures LLC Debt Conversion

On March 6, 2024, K2HV converted $1,125,000 of the outstanding loan balance into 142,857 shares of the Company's stock at a conversion price of $7.875 per share.

F-28

EX-10.33

Exhibit 10.33

This Agreement is made on February 27, 2024

Between:

(1)Corbus International Limited (company number: 11195935) whose registered office is at 5 New Street Square, London, EC4A 3TW (Company, we, us); and

(2)Dominic Smethurst of ____________________, __________, ________ (You, your)

It is agreed as follows:

1.Definitions and interpretation

1.1This Agreement means this agreement and any schedules to this agreement which form part of and are incorporated into this agreement.

1.2The definitions and rules of interpretation in Schedule 1 apply to this agreement.

2.Position

2.1You agree to serve as Chief Medical Officer ("CMO") of the Company or such other position as we may reasonably require from time to time on the terms of this Agreement.

2.2You warrant that you are entitled to work in the United Kingdom without any additional approvals and that you are not subject to any restrictions which prevent you from holding office as a director. You will notify us immediately if this position changes during your Employment.

3.Training

3.1There is no mandatory training relating to your Employment and which you are required to pay for.

3.2You are expected to engage in our in-house training programme and other training opportunities provided to you. Details of the training offered by us to employees at the Company and how to participate is available on request.

4.Term

4.1Your Employment will commence on February 27, 2024 and subject to the terms of this Agreement, will continue until terminated by either party giving the other not less than 3 months' prior notice in writing.

4.2You do not have any employment with a previous employer which counts towards your period of continuous employment with us.

5.Probationary Period

5.1The first six months of your Employment will be a probationary period. Your Employment may be terminated during this period at any time on one months' notice by either party or on payment of salary in lieu of that notice by us. We may at our discretion extend your probationary period for up to a further 3 months period.

5.2During your probationary period we will monitor your performance and suitability for continued employment. If you do not receive written confirmation of the satisfactory completion of your probationary period after 6 weeks and we have not served you with notice to terminate your employment, you will be deemed to have successfully completed it.

6.Duties

6.1You will carry out those duties which attach to your position of CMO, together with any other duties which are assigned to you by us from time to time (whether or not commensurate with your position).

6.2On our request, you agree to accept and hold, without additional remuneration, any offices and posts for us and/or any Group Company, including as our or any Group Company's director, company secretary, trustee, consultant, nominee and/or representative.

6.3During your Employment you will:

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(a)comply with the articles of association (as amended from time to time) of the Company or any Group Company of which you are a director;

(b)do such things as are reasonable and necessary to ensure compliance by you and the Company and/or any relevant Group Company with the Companies Act 2006;

(c)abide by any statutory, fiduciary or common-law duties to us or any Group Company of which you are a director (including but not limited to the seven statutory duties set out in s171 to s177 Companies Act 2006 (inclusive), to the extent they are in force);

(d)not do anything that would cause you to be disqualified from acting as a director;

(e)devote the whole of your working time, attention and abilities to our business and the business of any Group Company, unless prevented by any Incapacity;

(f)faithfully and diligently exercise such powers and perform such duties as we may from time to time assign to you, together with such person or persons as we may appoint to act jointly with you;

(g)comply with all reasonable and lawful directions given to you by us and observe in form and spirit any restrictions or limitations which may from time to time be imposed on you by us;

(h)promptly make such reports to the Board in connection with our or any Group Company's affairs on any matters and at any times as are reasonably required;

(i)immediately, on becoming aware of it, report your own wrongdoing and any wrongdoing or proposed or contemplated wrongdoing of any director, employee or worker of the Company or any Group Company (irrespective of whether this involves any degree of self-incrimination) to the Board;

(j)use your best endeavours to promote, protect, develop and extend our business and the business of any other Group Company (save where this causes a conflict with the Company's interests);

(k)at all times comply with our polices (as amended from time to time);

(l)implement and observe in form and spirit all our policies, procedures, rules and regulations (whether formal or informal) and those of any Group Company;

(m)comply with all requirements, recommendations or regulations as amended from time to time, of the New York Stock Exchange, the Nasdaq Listing Rules, the FINRA Rules and any directly applicable regulation made under that Regulation or any regulatory authorities relevant to the Company and/or any Group Company and any code of practice, policies or procedures manual issued by the Company (as amended from time to time) relating to dealing in the securities of the Company and/or any Group Company including the Dealing Code. In relation to overseas dealing you shall observe all laws and all regulations of the stock exchange, market or dealing system in which country or state such dealings take place;

(n)neither commit or attempt to commit the criminal offence of insider dealing nor contravene Articles 14, 15 or 19 of the Market Abuse Regulation (Regulation 596/2014/EU).

6.4We take a zero-tolerance approach to tax evasion. Accordingly, you must:

(a)not engage in any form of facilitating tax evasion, whether under UK law or under the law of any foreign country;

(b)immediately report to the Board any request or demand from a third party to facilitate the evasion of tax or any concerns that such a request or demand may have been made; and

(c)at all times comply with our own internal policies (as amended from time to time).

6.5You will comply with any of our rules, policies and procedures in force from time to time, including those set out in our Corbus Pharmaceuticals, Inc Employee Handbook ("Staff Handbook"), a copy of which is on request. The Staff Handbook also provides particulars of leave you may be entitled to take (paid or otherwise and subject to the terms set out from time

2

to time) in addition to your contractual entitlement under this Agreement. The Staff Handbook does not form part of this Agreement and we may replace, amend or withdraw any policy at any time. To the extent that there is any conflict between the terms of this Agreement and the Staff Handbook, this Agreement will prevail.

6.6The health and safety of all employees and of visitors to our premises are an important consideration. You have a legal duty to take reasonable care of your own health and safety and that of others which may be affected by what you do or do not do and to follow all reasonable instructions and guidelines issued by the Company from time to time.

7.Place of Work

7.1Your normal place of work is your UK home, as specified at the head of this Agreement or as otherwise notified to us as below (UK Home Address). You may be required from time to time to visit and work at such other locations and for such times as we consider necessary for the proper performance of your duties. We reserve the right to change your normal place of work upon reasonable notice to you.

7.2You are required to inform us as soon as possible in advance of any intention to change your UK Home Address and in any event prior to such UK Home Address changing.

7.3You confirm that you are not in breach of any covenant or agreement in doing work at your UK Home Address.

7.4For the avoidance of doubt, we shall not reimburse travel expenses from your UK Home Address to our offices in the UK (if any).

7.5You agree to comply with our Home Working Policy from time to time in office.

7.6It is a condition of your employment that your UK Home Address or set up at that address is suitable to enable you to carry out your duties of employment to our reasonable satisfaction. By way of example, your UK Home Address must be in a geographical location that benefits from reasonable internet connectivity and also infrastructure to enable the timely accessibility for you to visit and work at such other locations and for such times as we consider necessary for the proper performance of your duties.

7.7The provisions in Schedule 3 will apply during any period that you work from home.

7.8You will travel to and from work on a temporary basis from locations, both within and outside of the United Kingdom, as we reasonably require including, but not limited to, travelling to and working from the Parent Company office at least once per quarter, each time for a duration of 1-3 days or as required by the Company.

7.9There is no current requirement for you to work outside the United Kingdom for any consecutive period of one month or more.

7.10You are required to inform the Company as soon as possible if you plan to change your home address and when your home address does actually change.

8.Expenses

8.1We will reimburse (or procure the reimbursement of) all reasonable expenses, wholly, properly and necessarily incurred by you in the course of your Employment, subject to production of VAT receipts or other appropriate evidence of payment as we may request within 21 days of the expense being incurred.

8.2Any credit card supplied to you by us must only be used for expenses incurred by you in the course of your Employment and in accordance with the relevant Company policies in force from time to time. You must take good care of the card and you must report any loss immediately to us. The card should be returned to us immediately on request.

9.Hours of work

9.1You will work such hours as may be necessary for the proper performance of your duties and be reasonably available, as needed, during our core business hours of 09:00am to 5:00pm EST Monday to Friday. You acknowledge that you are working for an international business and that you are required to work flexibly for the proper performance of your duties. You agree that your employment falls within Regulation 20 WTR.

3

9.2By signing this Agreement you:

(a)confirm that you do not undertake any other work for any employer and undertake to seek our consent before undertaking work for any other employer; and

(b)agree to fully co-operate in assisting us to maintain accurate records of your working hours for the purposes of the WTR.

10.Salary

10.1You will be paid a salary of £379,000 per annum, subject to the deduction of tax and national insurance which we are required by law to deduct. Your salary is inclusive of any fees you are entitled to as officer of us and/or any Group Company.

10.2Your salary will be paid in equal monthly instalments in arrears, directly into your nominated bank or building society account. Your salary will accrue from day to day at a rate of 1/260 of your salary.

10.3Your salary will be reviewed annually. Following a salary review, we are under no obligation to award any increase. Any increase which is awarded will be effective from the date specified by the us. Your salary will not be reviewed where notice has been given to terminate your Employment (whether by you or by us).

10.4You may receive from us, from time to time and in our absolute discretion, additional remuneration, by way of bonus or otherwise. Any such payment does not form part of your salary.

11.Bonus

11.1You may be eligible for an annual discretionary target bonus of up to 40% of your base salary. You can earn more or less than the target amount depending on your performance, the Company’s performance and subject to Board approval. Your bonus, if approved, will be prorated in your first year.

11.2We may in our absolute discretion pay you any other bonus of such amount, at such intervals and subject to such conditions as we may in our absolute discretion determine from time to time. We reserve the right to make a nil bonus award.

11.3Any bonus awarded to you will be purely discretionary, it will not form part of your contractual remuneration under this Agreement and it will not be pensionable. Any bonus awarded does not impose any obligation on us to make any subsequent awards.

11.4We reserve the right, at any time and without prior notice, to alter any bonus targets which may have been notified to you from time to time or to withdraw them altogether.

11.5You will not have any right to a bonus award or bonus payment (including any time-apportioned payment) if:

(a)you are subject to any capability and/or disciplinary procedures; and/or

(b)your employment terminates for any reason or you are under notice of termination (whether given by you or by us) at or before the date when a bonus might otherwise have been payable.

12.

13.Pension

13.1We will comply with the employer pension duties in accordance with part 1 of the Pensions Act 2008.

14.Other Benefits

14.1You may be entitled to other benefits which we choose to offer from time to time on a discretionary basis. These benefits do not form part of your contract of employment and we may replace or withdraw such benefits or amend the terms of such benefits at any time. Details are available on request.

15.Holidays

15.1Our holiday year runs between 1 January to 31 December.

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15.2You are entitled to 20 days' paid holiday in each Holiday Year. In addition, you are entitled to the usual 8 public holidays in England and Wales. In the years your Employment starts or finishes, your holiday entitlement will be calculated on a pro-rata basis rounded up to the nearest half day.

15.3Your holiday entitlement is inclusive of your statutory holiday entitlement under the WTR. Any paid holidays (including paid public holidays) taken in a Holiday Year will be deemed to have first been taken in satisfaction of your statutory holiday entitlement.

15.4Holiday requests must be agreed in advance in writing with the Board. You must give at least 10 days' notice of your proposed holiday. No more than 10 days' holiday should be taken at one time.

15.5On giving at least 5 days' notice in writing, we may require you to take (or not to take) accrued holiday on particular dates, including during your notice period. Any accrued but unused holiday entitlement will be deemed to be taken during any period of garden leave taken pursuant to clause 20.

15.6Subject to clause 14.7, You may carry forward a maximum of 5 days' accrued but untaken holiday from one holiday year to the following holiday year with the consent of the Board.

15.7You can carry forward accrued but untaken holiday where you have been prevented from taking it in the relevant Holiday Year due to: a period of sickness absence or statutory maternity, paternity, adoption, parental or shared parental leave:

(a)In cases of carry-over of accrued but untaken leave due to sickness absence, any carry-over is limited to four weeks' holiday per year including bank holidays and that carried-over leave must be taken within eighteen months of the end of the relevant Holiday Year or it will be lost.

(b)In all other cases any carried-over leave must be taken during the Holiday Year it is carried into.

15.8You will have no entitlement to any payment in lieu of accrued untaken holiday except on termination of your Employment. Subject to clause 14.9 below, the amount of any such payment in lieu will be an amount equal to 1/260 of your salary for each untaken day of entitlement in the Holiday Year your employment terminates.

15.9If we have terminated or would be entitled to terminate your Employment under clause 23 or if you have terminated your Employment in breach of this Agreement, any payment in lieu under clause 14.8 will be limited to your statutory entitlement under the WTR.

15.10If you have taken more holiday than your accrued holiday entitlement at the date your employment terminates, we will be entitled to deduct the excess holiday pay from any payments due to you. The amount of any payment will be calculated at 1/260 of your salary for each excess day.

16.Sickness Absence

Your absence

16.1If you are unable to perform your duties due to Incapacity, you must report this to the Board on the first day of absence and indicate so far as possible the date on which you expect to return to work.

16.2You will keep us up to date regarding your Incapacity on request and provide us with such certification or other information regarding your Incapacity as we require. You will comply with our Sickness Policy (as amended from time to time).

16.3At our request, you agree to consent to medical examinations (at our expense) by a doctor nominated by us. We are entitled to rely on the reasonable opinion of any doctor engaged to examine you under this clause as to your fitness for work. For the avoidance of doubt, if the doctor considers you unfit for work your only entitlement to remuneration will be sick pay under clause 15.5.

16.4Our rights to terminate your Employment under any of the terms of this Agreement apply even where that termination would or might cause you to forfeit any entitlement to sick pay, permanent health insurance or other benefits. You agree that you will have no entitlement to compensation

5

or otherwise from the Company and/or any Group Company for the loss of any such benefits and/or entitlements.

Sick pay

16.5After you have satisfactorily completed your probationary period under clause 5 and subject to your compliance with this Agreement and clauses 15.1, 15.2 and 15.3 you will be entitled to receive contractual sick pay. Contractual sick pay is inclusive of any statutory sick pay ("SSP") due for the same period and is paid on the following basis. Your qualifying days for statutory sick pay purposes are Monday to Friday.

Service	Sick pay
Less than six months continuous service	SSP (if any)
six months or more but less than two years continuous service	Two weeks full pay in any 12 month period
two years' or more continuous service	Four weeks full pay in any 12 month period

16.6Any pay or benefits (if any) paid from time to time in excess of that set out at clause 15.5 above (including any additional sick pay) will be in our absolute discretion. Any delay by us in ending your sick pay entitlement (or other additional pay and benefits) will not constitute a waiver of our right to do so.

16.7If you have been on long-term sick leave continuously for more than a year, you will not qualify for sick pay again until you have returned to work for a total of 26 weeks.

16.8Save where we determine, in our absolute discretion, otherwise no sick pay, except for any statutory sick pay, will be payable for any period where:

(a)you are subject to any investigation or process for your conduct or performance or you are potentially at risk of redundancy and which could result in the imposition of a warning, dismissal or other sanction (including any performance measure); or

(b)you refuse on request to obtain a medical report from your GP or any other person responsible for your clinical care and/or to attend a medical examination by our appointed doctor and provide your medical records to that doctor.

Recovery

16.9If your sickness or injury appears due to actionable negligence, nuisance or breach of any statutory duty on the part of a third party and damages are or may be recoverable, you will immediately notify us of the fact and of any claim, settlement or judgment made or awarded in connection with it, together with all relevant particulars that we may reasonably require. On request you agree to co-operate in any related legal proceedings. You will refund to us any damages or compensation which you receive and which relate to your loss of earnings for the period of your sickness or injury as reasonably determined by us/the Board, less any costs borne by you in connection the recovery of such damages or compensation, provided that the amount to be refunded will not exceed the total amount paid to you by us in respect of that period of your sickness or injury.

17.Outside interests

17.1Save as provided for in clause 16.2 below, except as our representative or with our prior written approval, during the term of this Agreement (whether during or outside normal working hours and whether paid or unpaid), you agree:

(a)not to be directly or indirectly engaged, concerned or have any financial interest as an agent, consultant, director, employee, owner, partner, shareholder or in any other capacity, in any other business, trade, venture, organisation, profession or occupation, or in the setting up of the same;

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(b)not to carry out any public or private work other than your duties under this Agreement (whether for profit or otherwise).

17.2You may hold an investment of shares or other securities of not more than 5% of the total issued share capital of any company (whether or not it is listed or dealt in on a recognised stock exchange) and where such company does not carry on a business similar to or competitive with any business for the time being carried on by us or any Group Company.

17.3You agree to disclose to us any matters relating to your spouse or civil partner (or anyone living as such), children or parents which may, in our reasonable opinion be considered to interfere, conflict or compete with the proper performance of your obligations under this Agreement.

18.Confidential Information

18.1You acknowledge that in the course of your Employment you will have access to Confidential Information. You have therefore agreed to accept the restrictions in this clause 17.

18.2You shall not during your Employment (except in the proper course of your duties) or at any time after its termination (however arising) directly or indirectly, use, disclose or communicate to any person any Confidential Information.

18.3Clause 17.2does not to apply to:

(a)any use or disclosure authorised by us and/or as required by law;

(b)any information which is already in or comes into the public domain other than through your unauthorised disclosure;

(c)any protected disclosure within the meaning of s43A Employment Rights Act 1996;

(d)reporting a suspected criminal offence to the police or any other law enforcement agency or cooperating with the police or any law enforcement agency regarding a criminal investigation or prosecution;

(e)doing or saying anything that is required by HMRC or a regulator, ombudsman or supervisory authority;

(f)whether required to or not, making a disclosure to or cooperating with any investigation by HMRC or a regulator, ombudsman or supervisory authority regarding any misconduct, wrongdoing or serious breach of regulatory requirements (including giving evidence at a hearing);

(g)complying with an order from a court or tribunal to disclose or give evidence; and/or

(h)disclosing information to HMRC for the purposes of establishing and paying (or recouping) tax and national insurance liabilities arising from your employment or its termination.

18.4You agree that you will:

(a)use your best endeavours to prevent the unauthorised publication, disclosure or copying of any Confidential Information;

(b)inform us immediately if you become aware or suspect that any person, company or organisation knows or has used any Confidential Information; and

return to us all Confidential Information and Copies immediately on request.

19.Intellectual Property

19.1You will promptly disclose to us full details of any Invention and/or Works (including, without limitation, any and all computer programs, photographs, plans, records, drawings and models) which you (whether alone or with any other person) originate, make, conceive, create, develop, write or devise at any time during the Employment (whether during normal working hours or at the premises of the Company or otherwise). You will treat all Inventions and Works as Confidential Information of the Company.

19.2You acknowledge that as our employee, property and Intellectual Property Rights in such Inventions and Works belong to us. To the extent not already vested in us by operation of law:

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(a)You will hold all Intellectual Property Rights in such Inventions and/or Works and any materials embodying the same on trust for us until any rights to such Inventions and/or Works have been fully and absolutely vested in us in accordance with the remaining provisions of this clause 18;

(b)subject to sections 39-43 of the Patents Act 1977, you will assign to us all patents and rights to apply for patents or other appropriate forms of protection in each Invention throughout the world;

(c)you assign to us with full title guarantee by way of present and future assignment all copyright, design rights and other proprietary intellectual property rights (if any) for their full terms throughout the world in respect of the Works; and

(d)you will execute any document necessary to assign to us any rights referred to under this clause 18 and at our request and expense, do all things necessary or desirable (including entering into any agreement which we reasonably require) to vest such rights in us including without limitation applying and joining in with us in applying for any protection for or registration of any such rights to enable us and/or any Group Company and/or any nominee of us or any Group Company to obtain the full benefit and/or substantiate our rights and/or those of any Group Company under paragraphs (a), (b) and (c).

19.3You acknowledge and agree that the patenting and exploitation of any Invention will be at our sole discretion. You will not apply to register any Intellectual Property Right in your own name or do anything which would impact on the validity of any Intellectual Property Right obtained or to be applied for by us, any Group Company and our and/or their nominee at any time during your Employment.

19.4You irrevocably and unconditionally waive in favour of us any and all present and future moral rights conferred on you by Chapter IV, Part I, Copyright Designs and Patents Act 1988 and to the extent permitted by applicable law any other similar rights provided for under the laws now or in future in force in any part of the world for any Work, the rights in which are vested in the Company whether by clause 18.2 or otherwise.

20.Directorship

20.1Directors' and officers' liability insurance is provided for all our directors subject to the rules of our scheme (as amended from time to time). Further details can be obtained on request.

20.2You will not resign as a director of the Company or any Group Company except with the Board's prior approval, or as provided for in the articles of association of the Company or any Group Company of which you are a director.

20.3If during your Employment you cease to be a director of the Company or any Group Company (otherwise than by reason of your death, resignation or disqualification under the articles of association of the Company or relevant Group Company, as amended from time to time, or by statute or court order), your Employment will continue with us as an employee only and the terms of this Agreement (other than those relating to the holding of office of director) will continue in full force and effect. You will have no claims in respect of such cessation of office.

21.Change in Control

21.1In the event your employment terminates (other than in accordance with clause 23) within the six (6) months preceding or twelve (12) months following a Change in Control in the Parent Company, the Company shall:

(a)pay you twice the amount of your target bonus set out in clause 11.1 by March 15th of the calendar year following the Change in Control; and

(b)fully accelerate vesting of your outstanding stock options, restricted stock and other equity incentive awards upon the later of the Change in Control or the termination of your employment.

22.Garden Leave

22.1During any period of notice to terminate your Employment (whether given by you or us), or if you purport to terminate your Employment in breach of this Agreement, we may, in our absolute discretion, for all or any part of your notice period:

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(a)provide you with no work and/or revoke any powers you hold on our behalf or that of any Group Company;

(b)require you to carry out alternative duties and/or to only perform such specific duties as are expressly assigned to you, at such location (including your home) as we may decide;

(c)exclude you from any of our or any Group Company's premises;

(d)require you:

(i)to no longer receive, inspect, have access to, or copy any confidential information relating to our affairs and/or those of any Group Company or their respective clients, including without limitation books of account, records or databases of any of them or any information circulated or made available on a confidential basis;

(ii)not to contact (other than purely social contact) or deal with (or attempt to contact or deal with) any officer, employee, consultant, client, customer, supplier, agent, distributor, shareholder, adviser or other business contact of ours or any Group Company save as agreed in writing by us;

(iii)to disclose to the Board any attempted contact (other than purely social contact) with any person with whom you have been required not to have any contact pursuant to this clause; and

(e)require you to take any accrued holiday entitlement.

22.2You agree to use all reasonable endeavours to transfer to such other persons as nominated by the Company, at any such time reasonably specified by the Company prior to the commencement of any Garden Leave or during any such period, all ongoing work carried out by you on behalf of the Company and/or any Group Company.

22.3Any action taken under clause 21.1 will not be a breach of this Agreement and you will not have any claim against the Company and/or any Group Company in respect of such action.

22.4For the avoidance of doubt, during any period of Garden Leave:

(a)you will continue to be entitled to your basic salary and contractual benefits in the usual way (subject to the terms of this Agreement and the terms of any benefit scheme);

(b)you will remain our employee and be bound by the terms and conditions of this Agreement (including any implied duties of good faith and fidelity);

(c)save as agreed in writing by us, you will not work for any other person or on your own account; and

(d)except for any periods of holiday taken under this Agreement, you will remain readily contactable and available to work for us and/or any Group Company.

23.Payment in lieu of notice

23.1We may in our sole and absolute discretion, terminate your Employment at any time with immediate effect and we will pay in accordance with the provisions of this clause 22, a payment in lieu of notice to you equal to your basic salary (as at the termination date) which you would have been entitled to receive under this agreement during the notice period referred to at clause 4.1 (or if notice has already been given, during the remainder of the notice period) less income tax and national insurance contributions ("Payment in Lieu").

23.2For the avoidance of doubt, any Payment in Lieu shall not include any payment in respect of:

(a)any bonus or commission payments that might otherwise have been paid to you during the period for which the Payment in Lieu is made;

(b)benefits which you would have been entitled to receive during the period for which the Payment in Lieu is made; or

(c)any holiday entitlement that would have accrued to you during the period for which the Payment in Lieu is made.

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23.3We may pay any Payment in Lieu in equal monthly instalments until the date on which your notice period under clause 4.1 would have expired if notice had been given. You undertake to seek and take up, as soon as reasonably practicable, any opportunity to earn alternative income during this period and to notify us of any income you receive or are entitled to receive. Any outstanding instalments will then be reduced (including to zero) by the amount of such income. You agree that no further payments will become payable to you under this clause 22 with effect from the first day of taking up that opportunity.

23.4You shall have no right to receive a Payment in Lieu unless we have exercised our discretion in clause 22.1. Nothing in this clause 22 shall prevent us from terminating your Employment in breach.

23.5If having elected to make a Payment in Lieu but either before or after the payment (or any instalment of it) is made, it comes to our attention that we may have been entitled to terminate your employment summarily for a reason within clause 23 or otherwise, you will have no entitlement to any Payment in Lieu (or any outstanding instalment of it) and we reserve the right to demand the immediate repayment of any sum which has already been paid.

24.Termination without notice

24.1We may terminate your Employment at any time in writing, without notice and with no liability to make any further payment to you (other than amounts which have accrued due to the date of termination) in all appropriate circumstances, included but not limited to where you:

(a)are disqualified from acting as a director, are removed under our or any Group Company's articles of association as a director or you resign as a director of us or any Group Company without the prior written approval of the Board;

(b)are guilty of a breach of the requirements, rules or regulations as amended from time to time of the New York Stock Exchange, the Nasdaq listing rules, the FINRA rules and any directly applicable regulation made under that Regulation or any regulatory authorities relevant to us or any Group Company or any code of practice, policy or procedures manual issued by us (as amended from time to time) relating to dealing in the securities of the Company or any Group Company, including the Dealing Code;

(c)fail or case to meet the requirements of any regulatory body whose consent is required to enable you to undertake all or any of your duties under your Employment or you are guilty of a serious breach of the rules and regulations of such regulatory body or of our or any Group Company's compliance manual;

(d)commit any act of gross misconduct;

(e)commit any serious or repeated breach or non-observance of any of the provisions of this Agreement or refuse or neglect to comply with any reasonable and lawful directions given by us and/or the Board;

(f)are, in the reasonable opinion of the Board, negligent and incompetent in the performance of your duties;

(g)your conduct (whether or not it occurs during or in the context of your Employment) is such that it may in the reasonable opinion of the Board bring the Company and/or any Group Company into disrepute and/or is calculated or likely prejudicially to affect the interests of the Company and/or any Group Company;

(h)you commit any act of fraud or dishonesty or corrupt practice or a breach of the Bribery Act 2010 relating to the Company and/or any Group Company, any of its or their employees, customers or otherwise;

(i)you are guilty of a serious breach of rules issued by us from time to time regarding our electronic communications systems;

(j)you are unable by reason of Incapacity to perform your duties under this Agreement for an aggregate period of 26 weeks in any 52 week period;

(k)you are in the opinion of a medical practitioner physically or mentally incapable of performing your duties and you may remain so for more than three months and the medical practitioner has given a medical opinion to the Board to that effect;

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(l)you cease to be eligible to work in the United Kingdom;

(m)you are convicted of any criminal offence (other than an offence under the road traffic legislation in the United Kingdom or abroad for which a fine or non-custodial penalty is imposed);

(n)you are convicted of any offence under any regulation or legislation relating to inside dealing

(o)a bankruptcy petition is presented against you or you are declared bankrupt or an interim order is made in respect of you pursuant to section 252 Insolvency Act 1986 or you make any arrangement or composition with or for the benefit of your creditors or have a county court administration order made against you under the County Court Act 1984

24.2Our rights under clause 23 are without prejudice to any other rights that we may have at law to terminate your Employment or accept any breach of this Agreement by you as having brought the Agreement to an end. Any delay by us in exercising our rights under clause 23 shall not constitute a waiver of such rights.

25.Obligations on Termination

25.1On the termination of your Employment (however arising) or if earlier, at the start of a period of Garden Leave you will on request:

(a)immediately resign without compensation from any directorships in the Company or any Group Company or from any position which you hold as a trustee in relation to the business of the Company or any Group Company;

(b)transfer without payment to us or as we may direct, any shares or other securities held by you in the Company or any Group Company as nominee or trustee for us or any Group Company and deliver to us the related certificates;

(c)subject to clause 24.2 below, immediately deliver to us all documents, materials, records, correspondence, papers and information (on whatever media and wherever located) relating to our or any Group Company's business or affairs or our or its business contacts, any keys, credit card and any other property of ours or any Group Company which in your possession or under your control;

(d)irretrievably delete any information relating to our or any Group Company's business stored on any magnetic or optical disk or memory and all matter derived from such sources which is in your possession or under your control outside our premises, including but not limited to any personal computer, tablet, phone, cloud storage, email account or other electronic or storage device;

(e)inform us of all passwords, passcodes, PIN numbers and any other similar information used by you in relation to any information technology systems, vehicles, rooms and/or any other secured property of the Company and/or any Group Company;

(f)use all reasonable endeavours to transfer to such other persons as nominated by the Company, at any such time reasonably specified by the Company prior to the termination of your employment and/or commencement of garden leave, all ongoing work carried on by you on behalf of the Company and/or any Group Company;

(g)deliver up to the Company all control and access rights to any non-personal social media profile or groups created by you for business purposes in respect of the Company and/or any Group Company to which you have access;

(h)provide a signed statement that you have complied fully with your obligations under this clause 24.1 together with such reasonable evidence of compliance as we may request.

25.2Where you are on Garden Leave you will not be required to return any property provided to you as a contractual benefit for use during your Employment until the end of that Garden Leave period.

25.3You agree to update any social media profile you may have so as not to misrepresent that you are employed by or in any way associated with the Company and/or any Group Company. You will ensure that any amendment to your social media profile does not put you in breach of the

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restrictions set out in Schedule 2 of this Agreement including, without limitation, your restrictions on soliciting Clients or Prospective Clients as defined in that Schedule.

26.Restrictions following termination

26.1Without prejudice to the other terms of this Agreement, you agree that following the termination of your Employment for any reason whatsoever, you will be bound by and you will comply with the terms and conditions set out in Schedule 2 to this Agreement.

27.Disciplinary and grievance procedures

27.1You are subject to our disciplinary and grievance procedures, and such other procedures of this nature as are adopted by us from time to time, copies of which are available on request. These procedures do not form part of your contract of employment and their application is at our discretion.

27.2If you are dissatisfied with any disciplinary decision to dismiss you, you should refer such dissatisfaction in writing to US HR Team, who will proceed in accordance with the appeal procedure set out in the appropriate Company procedure.

27.3If you want to raise a grievance (other than one relating to a disciplinary decision or decision to dismiss you), you may apply in writing to US HR Team in accordance with our grievance procedure, available on request.

Suspension

27.4We may suspend you from any and all of your duties for no longer than is necessary to investigate any disciplinary matter involving you or for so long as is otherwise reasonable while any disciplinary or capability procedure against you is outstanding.

27.5During any period of suspension under clause 26.4 you will continue to receive your basic salary and all contractual benefits in the usual way (subject to the terms of any benefit arrangement. You will remain our employee and bound by the terms of this Agreement.

28.Data Protection

Your Personal Data

28.1You will keep us informed of any changes to your Personal Data, including name, address and bank details.

28.2We are subject to legal obligations regarding your Personal Data. The Staff Privacy Notice sets out further details on how we will collect and process your Personal Data (but does not form part of your terms and conditions of employment). We will also rely upon lawful grounds for processing your Personal Data as set out in the Staff Privacy Notice.

28.3By signing this Agreement you confirm that you have read and understood the Staff Privacy Notice. In the event of any queries please contact Corbus US HR.

28.4Our systems enable us to monitor telephone, email, voicemail, internet and other communications. In order to carry out its legal obligations as an employer (such as ensuring your compliance with our IT related policies) and for other business reasons, we may monitor use of systems including the telephone and computer systems, and any personal use of them, by automated software or otherwise. Monitoring of our systems includes the ability to review the content of individual messages, emails or voicemails. Monitoring is only carried out to the extent permitted or as required by law and as necessary and justifiable for business purposes. You should refer to the Staff Privacy Notice and any other relevant policies in place from time to time for further details

Your Responsibilities when Handling Personal Data

28.5You confirm that you shall, at all times, comply with all obligations imposed upon you under our policies and the Staff Privacy Notice in each case from time to time in force. If you are unclear how the policies apply, or more generally, what you need to do to comply with the law on data protection, please speak to Corbus US Legal.

28.6If you discover a data breach, you must notify us urgently and, if practicable, within one hour, providing details on the circumstances of the breach. A data breach occurs where there is destruction, loss, alteration or unauthorised disclosure or access to personal data which is being

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held, stored, transmitted or processed in any way. For example, there is a data breach if our servers are hacked or if a laptop/USB stick is lost or an email is sent to the wrong person by mistake.

28.7Failure to comply with your obligations under this clause 27 will in most circumstances be considered to be a serious disciplinary offence which may lead to disciplinary action against you (up to and including summary dismissal).

29.Warranty

29.1You represent and warrant to us that by entering into this Agreement or performing any of your obligations under it, you will not be in breach of any court order or arrangement, any express or implied terms of any contract and/or any other obligation, restriction or undertaking and you undertake to indemnify us and/or any Group Company against any claims, costs, damages, liabilities and/or expenses which we and/or any Group Company may incur as a result of any such breach.

30.Deductions

We may deduct from your salary, or any other payments due to you, any money which you may owe to us or any Group Company at any time.

31.Restructurings

31.1You consent to the transfer of your employment under this Agreement to any Associated Employer at any time during your Employment.

31.2If your Employment is terminated by reason of any reconstruction or amalgamation, of us and/or any Group Company, whether by winding up or otherwise, and you are offered employment with any concern or undertaking involved in or resulting from such reconstruction or amalgamation on terms which (considered in their entirety) are no less favourable to any material extent than the terms of this Agreement, you will have no claim against us, any Group Company and/or any such undertaking arising out of or in connection with your termination.

32.Power of Attorney

You irrevocably appoint us (or a person nominated by us) to be your attorney in your name and on your behalf to execute documents, use your name and do all things which are necessary or desirable for us to obtain for ourselves or our nominee the full benefit of clauses 18 and 24.

33.Changes to your terms of employment

33.1We reserve the right to make reasonable changes to any of your terms of employment. You will be notified in writing of any changes as soon as possible and in any event within one month of the change.

34.Collective Agreements

There is no collective agreement which directly affects your Employment.

35.Entire Agreement

35.1This Agreement and any documents referred to in it sets out the entire agreement and understanding between the parties and supersedes and extinguishes all prior agreements, promises, assurances, warranties, representations, understandings and/or arrangements between them, whether written or oral, relating to its subject matter.

35.2Each party agrees that it shall have no claim for innocent or negligent misrepresentation or negligent misstatement based on any statement in this Agreement. Nothing in this clause shall limit or exclude any liability for fraud.

36.Variation

No purported variation of this Agreement shall be effective unless it is in writing and signed by the parties (or their authorised representatives).

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37.Counterparts

37.1This Agreement may be executed in any number of counterparts, each of which when executed and delivered shall constitute a duplicate original, but all the counterparts shall together constitute the one Agreement.

37.2Transmission of an executed counterpart of this Agreement (but for the avoidance of doubt not just a signature page) by (a) fax or (b) email (in PDF, JPEG or other agreed format) will take effect as delivery of an executed counterpart of this Agreement. If either method of delivery is adopted, without prejudice to the validity of the agreement made by it, each party will provide the others with the original of their counterpart as soon as reasonably possible.

37.3No counterpart will be effective until each party has executed and delivered at least one counterpart.

38.Third Party rights

No one other than you and the Company shall have any right to enforce any terms of this Agreement.

39.Notice

39.1A notice given to a party under or in connection with this Agreement shall be in writing in the English language and signed by or on behalf of the party giving it and sent by one of the following methods:

(a)hand delivery;

(b)first class or special (or other recorded) delivery pre-paid post; or

(c)email.

39.2The postal and email addresses of each of the parties for the purposes of delivery or service of a notice are as follows: details or such other address a party may notify to the other parties from time to time provided that notice of any change will only be effective on the date falling five business days after it is delivered or served in accordance with this clause 38.

39.3A notice provided it is properly addressed will be deemed to be delivered or served as follows:

(a)If delivered by hand, at the time the notice is left at the address given in this Agreement or given to the addressee;

(b)If sent by first class or special (or other recorded) delivery pre-paid post, 10am on the second business day after posting or at the time recorded by the delivery service; and

(c)If sent by email, at the time the email is sent provided that delivery or service shall not occur if the sender receives an automated message indicating that the email has not been delivered to the recipient

provided that in relation to delivery or service by hand or email, in any case where delivery or service would be deemed to have taken place after 5pm on a business day and before 10am on the next business day, such notice will be deemed to have been delivered or served at 10am on the later of those business days (and on a day which is not a public holiday).

39.4In proving delivery or service of a notice by email, a confirmation showing that the email was sent to the email address of the recipient will be sufficient.

39.5This clause does not apply to the service of any proceedings or other documents in any legal action or, where applicable, any method of dispute resolution.

40.Governing law and jurisdiction

40.1This Agreement and any dispute or claim arising out of or in connection with it or its subject matter or formation (including non-contractual disputes or claims) shall be governed by and construed in accordance with the law of England and Wales.

40.2Each party irrevocably agrees that the courts of England and Wales shall have exclusive jurisdiction to settle any dispute or claim arising out of or in connection with this Agreement or its subject matter or formation (including non-contractual disputes or claims).

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Schedule 1

Definitions and interpretation

1.Definitions

1.1In the Agreement to which this Schedule is attached, unless the context otherwise requires:

"Board" means the board of directors of the Company from time to time and includes any committee of the Board duly appointed by it.

"Change in Control":a person has "Control" of a company if it holds, directly or indirectly, shares which together with shares held by any persons acting in concert with him carry 50% or more of the voting rights of that company and "Change in Control" shall be construed accordingly.

"Confidential Information" means any trade secrets or other information which is confidential, commercially sensitive and is not in the public domain relating to or belong to the Company and/or any Group Company including but not limited to:

(a)Information relating to the business methods, corporate plans, management systems, finances, new business opportunities, research and development projects, marketing or sales of any past, present or future product or service;

(b)Secret formulae, processes, inventions, designs, know-how, discoveries, technical specifications and other technical information relating to the creation, production or supply of any past, present or future product or service of the Company and/or any Group Company;

(c)Lists or details of customers, potential customers or suppliers or the arrangements made with any customer or supplier; and

(d)Any information in respect of which the Company and/or any Group Company owes an obligation of confidentiality to any third party.

"Dealing Code" means the dealing Code of the Company and any Group Company restricting transactions in the securities of the Company and any Group Company by directors and certain senior executives of the Company during certain times (such as closed periods) and setting out the procedure for obtaining clearance to deal in the securities of the Company and any Group Company.

"Associated Employer" has the meaning given to it in the Employment Rights Act 1996.

"Employment" means your period of employment under this Agreement and is deemed to include any period of garden leave served under clause 20.

"Group Company" means the Company and any holding company or any parent company or any subsidiary or subsidiary undertaking of the Company or such companies, as such terms are defined in s1159, s1162 (together with Schedule 7 and the definition of 'parent company' in s1173), s1161 and Schedule 6 of the Companies Act.

"HMRC" means HM Revenue and Customers.

"Holiday Year" means the period 1 January to 31 December or such other period of one year as the Company may notify to you in writing from time to time.

"Incapacity" means any sickness, injury or other medical disorder or condition which prevents you from carrying out your duties.

"Intellectual Property Rights" means any patents, rights to Inventions, copyright and related rights, trade marks, service marks, trade names and business names, rights in get-up, goodwill, rights to sue for passing off or unfair competition, rights in designs, rights in computer software, database rights, rights in domain names and URLs, rights to preserve the confidentiality of information (including know-how and trade secrets) and any other intellectual property rights, in each case whether registered or unregistered and including all applications (or rights to apply for and be granted), renewals or extensions of, and rights to claim priority from, such rights and all similar or equivalent rights or forms of protection which may now or in the future subsist in any part of the world.

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"Invention" means any know how, technique, process, improvement, invention or discovery (whether patentable or not) which you (whether alone or with any other person) make, conceive, create, develop, write, devise or acquire at any time during your employment and which relates or could relate directly or indirectly to the Company's or any Group Company's businesses.

"Parent Company" means Corbus Pharmaceuticals, Holdings, Inc.

"Parent Company Board" means the board of directors of the Parent Company from time to time and includes any committee of the Parent Company Board duly appointed by it.

"Personal Data" means information relating to an individual (or from which an individual may be identified).

"Recognised Exchange" means any of a recognised investment exchange (as defined in s285 Financial Services and Markets Act 2000 (FSMA)), an overseas investment exchange (as defined in s313 FSMA), or a relevant market (as defined in article 37 FSMA 2000 (Financial Promotion) Order 2005.

"Schemes" means such schemes as the Company may operate from time to time and which are referred to in clause 13.

"Termination Date" means the date on which the Employment terminates.

"WTR" means the Working Time Regulations 1998 (SI 1998/1833).

"Works" means all works including without limitation all copyright works or designs originated, conceived, developed or written by you alone or with others during your employment which relate to or could relate to the Company's or any Group Company's businesses.

2.Interpretation

2.1In the Agreement, unless the context otherwise requires:

(e)words in the singular include the plural and vice versa and words in one gender include any other gender;

(f)a reference to a statute or statutory provision includes:

(i)any subordinate legislation (as defined in s21(1) Interpretation Act 1978) mad under it; and

(ii)any statute or statutory provision which modifies, consolidates, re-enacts or supersedes it.

(g)a reference to:

(i)a "person" includes any individual, firm, body corporate, business, venture, association, partnership or government department (whether or not having a separate legal personality, and whether or not acting for profit);

(ii)clauses and schedules are to clauses and schedules of this Agreement and references to sub-clauses and paragraphs are references to sub-clauses and paragraphs of the clause or schedule in which they appear; and

(iii)'indemnify' and 'indemnifying' any person against any circumstances include indemnifying and keeping them harmless from all actions, claims and proceedings from time to time made against them and all loss or damage and all payments (including fines, penalties and interest, costs or expenses) made or incurred by that person as a consequence of or which would not have arisen but for that circumstance;

(h)Except where otherwise stated, words and phrases defined in the City Code on Take-overs and Mergers or in the Companies Act 2006 have the same meaning in this Agreement.

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Schedule 2

(Post termination restrictions)

3.Definitions and interpretation

3.1In this Schedule 2, the definitions and rules of interpretation in Schedule 1 apply.

3.2In addition, the following definitions below apply:

"Business" means the business of the Company and/or any Group Company, or any part of such a business, in respect of which you had been materially concerned at any time during the Protected Period.

"Capacity" means you directly or indirectly, acting alone or jointly, with or on behalf of any other person, holding any position (whether employed or engaged) or otherwise providing any services (including but not limited to you being a director, officer, employee, worker, consultant, contractor, adviser, partner, principal, agent or volunteer) and whether for your own benefit or that of any other person.

"Client" means any person who was a client of the Company and/or any Group Company at any time during the Protected Period and with whom you had material personal dealings at any time during the Protected Period.

"Garden Leave Period" means the time during any period of notice in which the Company placed you on garden leave pursuant to clause 20 of the Agreement; and

(i)required you to no longer carry out any material duties on behalf of the Company and/or any Group Company; and/or

(j)aside from purely social contact, prohibited you from contacting:

(i)Clients for the purposes of paragraph 3.1(a)

(ii)Prospective Clients for the purposes of paragraph 4

(iii)Key Employees for the purposes of paragraph 5.1(a); and

(iv)Suppliers for the purposes of paragraph 7

"Information" means any trade secrets and/or Confidential Information (as defined in Schedule 1) of the Company and/or any Group Company which is likely to assist or benefit a business in, or proposing to be in, competition with the Company and/or any Group Company.

"Interest" means:

(k)the direct or indirect provision of any financial assistance and/or

(l)the direct or indirect control or ownership (whether jointly or alone) of any shares (or any voting rights attached to them) or debentures);

save for the ownership, for passive investment purposes only, of not more than 5% of the issued ordinary shares of any person.

"Key Employee" means any person who at any time during Protected Period was employed or engaged by the Company and/or Group Company and with whom you had material dealings at any time during the Protected Period and:

(m)who reported to you at any time during the Protected Period;

(n)who acquired influence over any Clients and/or Prospective Clients and/or Suppliers during the Protected Period by reason of having been employed or engaged by the Company and/or any Group Company.

(o)who held a senior managerial, sales, marketing, technical or supervisory role at any time during the Protected Period; and/or

(p)who could otherwise materially damage the Company and/or Group Companies' interests if they were involved in any Capacity in any person that competes or is proposing to compete with the Business.

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"Prospective Clients" means any person who at any time during the Protected Period was engaged in negotiations with the Company and/or any Group Company with a view to obtaining goods or services from the Company and/or any Group Company and with whom you had material personal dealings at any time during the Protected Period.

"Protected Period" means the 12 month period immediately preceding the earlier of the Termination Date and the commencement of any Garden Leave Period

"Restricted Area" means the territories in which the Business operated at any time during the Protected Period.

"Suppliers" means any person who supplied goods or services to the Company and/or any Group Company on terms other than those generally available to another purchaser in the market at any time during the Protected Period, whether by reason of exclusivity (whether de facto or contractually obliged) price or otherwise, and with whom you had material personal dealings at any time during the Protected Period.

"Suspension Period" means any period of time during which you were suspended by the Company, provided such suspension ended immediately prior to:

(q)notice being served by you/the Company and you being immediately placed on a Garden Leave Period; and/or

(r)the Termination Date

"Termination Date" means the date on which your Employment terminates however caused.

4.Non-Compete

4.1During the period of 3 months following the Termination Date less any Garden Leave Period, you shall not be employed or engaged in any Capacity by any person to the extent that your activities for or on behalf of such person shall be:

(s)in competition with the Business within the Restricted Area; and/or

(t)preparing to compete with the Business within the Restricted Area.

4.2During the period of 3 months following the Termination Date less any Garden Leave Period, you shall not hold any Interest in any person which is:

(u)in competition with the Business within the Restricted Area; and/or

(v)preparing to compete with the Business within the Restricted Area.

5.Clients

5.1During the period of 6 months following the Termination Date less any Garden Leave Period, you shall not, in any Capacity, in competition with the Business within the Restricted Area:

(w)solicit, canvass, induce or entice away (or endeavour, procure, assist or facilitate the solicitation, canvassing, inducement or enticement away) from the Company and/or any Group Company, the custom or business of any Client; and/or

(x)solicit, canvass, induce or entice (or endeavour, procure, assist or facilitate the solicitation, canvassing, inducement or enticement of) a Client to reduce or vary the terms upon which it deals with the Company and/or any Group Company or otherwise cause the value of the Company and/or any Group Company's arrangement with the Client to be diminished; and/or

(y)deal with or supply any Client.

6.Prospective Clients

6.1During the period of 6 months following the Termination Date less any Garden Leave Period, you shall not, in any Capacity, in competition with the Business within the Restricted Area:

(z)solicit, canvass, induce or entice away (or endeavour, procure, assist or facilitate the solicitation, canvassing, inducement or enticement away) from the Company and/or any Group Company, the prospective custom or business of any Prospective Client; and/or

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(aa)solicit, canvass, induce or entice (or endeavour, procure, assist or facilitate the solicitation, canvassing, inducement or enticement of) a Prospective Client to reduce or vary the prospective terms upon which it may deal with the Company and/or any Group Company or otherwise cause the prospective value of the Company and/or any Group Company's prospective arrangement with the Prospective Client to be diminished; and/or

(bb)deal with or supply any Prospective Client.

7.Key Employees

7.1During the period of 6 months following the Termination Date less any Garden Leave Period, you shall not, in any Capacity:

(cc)solicit, canvass, induce or entice (or endeavour, procure, assist or facilitate the solicitation, canvassing, inducement or enticement of) any Key Employee to terminate their employment or engagement with the Company and/or any Group Company, whether or not that person would breach any obligations owed to the Company or any relevant Group Company by so doing; and/or

(dd)solicit, canvass, induce or entice (or endeavour, procure, assist or facilitate the solicitation, canvassing, inducement or enticement of) any Key Employee to renegotiate their terms of employment or engagement with the Company and/or any Group Company; and/or

(ee)offer (or endeavour, procure, assist or facilitate the offering of) any employment and/or engagement to any Key Employee.

8.Team Moves

8.1If, at any time during the two year period prior to the Termination Date, two or more Key Employees leave the employment of the Company and/or any Group Company and take up employment or engagement with the same person, where such person is also:

(ff)in competition with the Business within the Restricted Area; and/or

(gg)preparing to compete with the Business within the Restricted Area,

you shall not, at any time during the 12 months following the last date on which such Key Employee was employed and/or engaged by the Company and/or any Group Company, be employed or engaged in any way with that person to the extent any of your activities for such person will likely be in competition with, or preparing to compete, with the Business within the Restricted Area.

9.Suppliers

9.1During the period of number months following the Termination Date less any Garden Leave Period, you shall not, in any Capacity, in competition with the Business within the Restricted Area:

(hh)solicit, canvass, induce or entice away (or endeavour, procure, assist or facilitate the solicitation, canvassing, inducement or enticement away) from the Company and/or Group Company, the supply of any goods or services from any Supplier; and/or

(ii)solicit, canvass, induce or entice (or endeavour, procure, assist or facilitate the solicitation, canvassing, inducement or enticement of) the Supplier to reduce or alter the terms or quantity of supply to the Company and/or any Group Company or otherwise cause the value of the Company and/or any Group Company arrangement with the Supplier to be diminished; and/or

(jj)deal with or accept the supply of any goods or services from any Supplier, where such supply is likely to be the detriment of the Company and/or any Group Company.

10.Protection of Information

10.1You shall not be employed or engaged in any Capacity by any person to the extent that your activities for or on behalf of such person are likely to result in your intentional and/or unintentional disclosure or use of Information;

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10.2You shall not by any means involving the intentionally and/or unintentional disclosure or use of Information:

(kk)solicit, canvass, induce or entice away (or endeavour, procure, assist or facilitate the solicitation, canvassing, inducement or enticement away) the custom or business of any client of the Company and/or Group Company; and/or

(ll)solicit, canvass, induce or entice (or endeavour, procure, assist or facilitate the solicitation, canvassing, inducement or enticement of) a client to reduce or vary the terms upon which it may deal with the Company and/or any Group Company or otherwise cause the value of the Company and/or any Group Company's arrangement with the client to be diminished; and/or

(mm)deal with or supply any client of the Company and/or Group Company.

10.3You shall not by any means involving the intentionally and/or unintentional disclosure or use of Information:

(nn)solicit, canvass, induce or entice away (or endeavour, procure, assist or facilitate the solicitation, canvassing, inducement or enticement away) the prospective custom or business of any prospective client of the Company and/or Group Company; and/or

(oo)solicit, canvass, induce or entice (or endeavour, procure, assist or facilitate the solicitation, canvassing, inducement or enticement of) a prospective client to reduce or vary the prospective terms upon which it may deal with the Company and/or any Group Company or otherwise cause the prospective value of the Company and/or any Group Company's prospective arrangement with the prospective client to be diminished; and/or

(pp)deal with or supply any prospective client of the Company and/or Group Company.

11.Disclosure

11.1You undertake that if you are offered and/or agree to take up a position in any Capacity by any person during your employment with the Company and/or before the expiry of the last of the covenants in this Schedule, you will immediately:

(qq)disclose a copy of these restrictions to that person; and

(rr)notify the Company of the offer of a position and identity of such person.

11.2You undertake that if any person at any time seeks to induce you to breach the provisions in this Schedule, during your employment with the Company and/or before the expiry of the last of the covenants in this Schedule, you will immediately disclose full details of such information to the Company.

11.3Following the termination of your employment, you shall not hold yourself out or permit any person to hold you out as being in any way still connected with or interested in the Company or any Group Company.

12.General

12.1You agree that the restrictions contained in this Schedule shall also apply to your use of any social networking sites and/or professional networking sites, regardless of whether such accounts are held by you personally, held by you in the course of your employment and/or engagement with the Company and/or Group Company or otherwise held by you in any other Capacity for any other person.

12.2You acknowledge and accept that you have had the opportunity to take independent professional advice. You warrant that you believe the covenants contained within this Schedule to be reasonable as between the parties and that you have no present intention of ever arguing that the restraints are unreasonable or otherwise unenforceable.

12.3Notwithstanding the above, you agree that each of the restrictions in this Schedule 2 are intended to be separate and severable. If any of the restrictions shall be held to be void but would be valid if part of their wording were deleted, such restriction shall apply with such deletion as may be necessary to make it valid or effective.

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12.4You have given the undertakings in this Schedule 2 to the Company as trustee for itself and each Group Company in respect of whom you have been concerned in any Business. You agree that each such Group Company may enforce the benefit of each such undertaking. You shall, at the request and expense of the Company, enter into direct undertakings with any such Group Company which correspond to the undertakings in this Schedule.

12.5You agree that if you have material business dealings in other foreign jurisdictions on behalf of any Group Company, you will enter into undertakings providing the same level of protection for each such Group Company with such modifications (if any) as are necessary to render such undertakings enforceable in those jurisdictions.

12.6You agree that if the Company transfers all or any part of its business to any other person ("Transferee"), the restrictions contained in this Schedule shall, with effect from the date of you becoming an employee of the Transferee, apply to you as if:

(ss)references to the Company include the Transferee, and references to any Group Companies were construed to include group companies of the Transferee;

(tt)references to Clients, Prospective Clients, Key Employees and Suppliers of the Company include the Transferee, and references to any Group Companies were construed to include group companies of the Transferee,

and you will, if so required, enter into an agreement with the Transferee containing post termination restrictions corresponding to those restrictions in this Schedule.

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Schedule 3

Home-working

13.Equipment and Insurance

13.1We shall provide you for your sole business use with equipment for the purpose of carrying out your duties (Company Property).

13.2For the avoidance of doubt, the Company Property will remain the property of the Company and you will not permit use of it by any person other than yourself and our authorised representatives.

13.3You will be responsible for any damage to the Company Property which goes beyond ordinary wear and tear. You are required to report to us any such damage or malfunction of the Company Property as soon as you become aware of it.

13.4You will not cause or permit any act or omission which will invalidate the insurance policy covering the Company Property.

14.IT and Monitoring

14.1You agree to comply with any electronic communications systems or similar policy from time to time in force.

14.2Our systems enable us to monitor telephone, email, voicemail, internet and other communications. In order to carry out its legal obligations as an employer (such as ensuring your compliance with the Company's IT related policies), and for other business reasons, we may monitor use of systems including the telephone and computer systems, and any personal use of them, by automated software or otherwise. Monitoring is only carried out to the extent permitted or as required by law and as necessary and justifiable for business purposes.

15.Confidential Information and Data Protection

15.1You are responsible for ensuring the security of Confidential Information in your home. In particular, you undertake to:

(uu)lock your computer terminal whenever it is left unattended;

(vv)ensure any wireless network used is secure;

(ww)keep all papers in filing cabinets that are locked when not in use; and

(xx)comply with applicable data protection legislation and the Company's Data Protection and Information Gathering Policy, Information Security Policy and Employee Privacy Notice which we may issue from time to time regarding the retention and processing of personal data.

16.Health and Safety

You agree to comply with all health and safety guidelines and instructions which we may give to you from time to time and to complete without delay all health and safety questionnaires that we may send to you from time to time.

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This document has been executed as a deed and is delivered and takes effect on the date stated at the beginning of it.

Executed as a Deed )
by __________________ )
in the presence of: )

Signature of witness:

Name:

Address:

Occupation:

Executed as a Deed )
by Corbus International Limited )
acting by ___________, a director )
in the presence of: )

Director

Signature of witness:

Name:

Address:

Occupation

23

EX-21.1

Exhibit 21.1

SUBSIDIARIES (WHOLLY-OWNED) OF CORBUS PHARMACEUTICALS HOLDINGS, INC.

Name of Organization	Jurisdiction
Corbus Pharmaceuticals, Inc.	Delaware
Corbus International Limited	United Kingdom
Corbus Pharmaceuticals Australia Pty Ltd	Australia

EX-23.1

Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in the Registration Statements of Corbus Pharmaceuticals Holdings, Inc. on Form S­-3 (Nos. 333-272314 and 333-276776) and Form S­-8 (Nos. 333-200350, 333-201898, 333-210428, 333-216547, 333-223745, 333-230219, 333-237240, 333-254350, 333-263583, and 333-270468) of our report dated March 12, 2024, on our audits of the financial statements as of December 31, 2023 and 2022 and for each of the years then ended, which report is included in this Annual Report on Form 10-K to be filed on or about March 12, 2024.

/s/ EisnerAmper LLP

EISNERAMPER LLP

Iselin, New Jersey

March 12, 2024

EX-31.1

Exhibit 31.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER PURSUANT

TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Yuval Cohen, certify that:

1. I have reviewed this annual report on Form 10-K for the period ended December 31, 2023 of Corbus Pharmaceuticals Holdings, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: March 12, 2024

/s/ Yuval Cohen

Yuval Cohen

Chief Executive Officer

(Principal Executive Officer)

EX-31.2

Exhibit 31.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER PURSUANT

TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Sean M. Moran, certify that:

 1. I have reviewed this annual report on Form 10-K for the period ended December 31, 2023 of Corbus Pharmaceuticals Holdings, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: March 12, 2024

/s/ Sean Moran

Sean Moran

Chief Financial Officer

(Principal Accounting and Financial Officer)

EX-32.1

Exhibit 32.1

Certification of Chief Executive Officer Pursuant to

18 U.S.C. Section 1350,

as Adopted Pursuant to

Section 906 of the Sarbanes-Oxley Act of 2002

This Certification is being filed pursuant to 18 U.S.C. Section 1350, as adopted by Section 906 of the Sarbanes-Oxley Act of 2002. This Certification is included solely for the purposes of complying with the provisions of Section 906 of the Sarbanes-Oxley Act and is not intended to be used for any other purpose. In connection with the accompanying Annual Report on Form 10-K of Corbus Pharmaceuticals Holdings, Inc. for the year ended December 31, 2023, each of the undersigned hereby certifies in his capacity as an officer of Corbus Pharmaceuticals Holdings, Inc. that to such officer’s knowledge:

(1) The Annual Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Annual Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

	By:	/s/ Yuval Cohen
Dated: March 12, 2024		Yuval Cohen
		Chief Executive Officer
		(Principal Executive Officer)

EX-32.2

Exhibit 32.2

Certification of Chief Financial Officer Pursuant to

18 U.S.C. Section 1350,

as Adopted Pursuant to

Section 906 of the Sarbanes-Oxley Act of 2002

This Certification is being filed pursuant to 18 U.S.C. Section 1350, as adopted by Section 906 of the Sarbanes-Oxley Act of 2002. This Certification is included solely for the purposes of complying with the provisions of Section 906 of the Sarbanes-Oxley Act and is not intended to be used for any other purpose. In connection with the accompanying Annual Report on Form 10-K of Corbus Pharmaceuticals Holdings, Inc. for the year ended December 31, 2023, each of the undersigned hereby certifies in his capacity as an officer of Corbus Pharmaceuticals Holdings, Inc. that to such officer’s knowledge:

(1) The Annual Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Annual Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

	By:	/s/ Sean Moran
Dated: March 12, 2024		Sean Moran
		Chief Financial Officer
		(Principal Accounting and Financial Officer)

EX-97.1

EXHIBIT 97.1

CORBUS PHARMACEUTICALS HOLDINGS, INC.

COMPENSATION RECOVERY POLICY

(Adopted and approved on November 8, 2023)

1. Purpose

Corbus Pharmaceuticals Holdings, Inc. (collectively with its subsidiaries, the “Company”) is committed to promoting high standards of honest and ethical business conduct and compliance with applicable laws, rules and regulations. As part of this commitment, the Company has adopted this Compensation Recovery Policy (this “Policy”). This Policy is designed to comply with the requirements of Section 10D of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), Rule 10D-1 promulgated thereunder and the rules of the national securities exchange on which the Company’s securities are traded and explains when the Company will pursue recovery of Incentive Compensation awarded or paid to a Covered Person. Please refer to Exhibit A attached hereto (the “Definitions Exhibit”) for the definitions of capitalized terms used throughout this Policy.

2. Recovery of Recoverable Incentive Compensation

In the event of a Restatement, the Company will pursue, reasonably promptly, recovery of all Recoverable Incentive Compensation from a Covered Person without regard to such Covered Person’s individual knowledge or responsibility related to the Restatement. Notwithstanding the foregoing, if the Company is otherwise required by this Policy to undertake a Restatement, the Company will not be required to recover the Recoverable Incentive Compensation if the Compensation Committee determines, after exercising a normal due process review of all the relevant facts and circumstances, that (a) a Recovery Exception exists and (b) it would be impracticable to seek such recovery under such facts and circumstances.

If such Recoverable Incentive Compensation was not awarded or paid on a formulaic basis, the Company will pursue recovery of the amount that the Compensation Committee determines in good faith should be recovered.

3. Other Actions

The Compensation Committee may, subject to applicable law, pursue recovery of Recoverable Incentive Compensation in the manner it chooses, including by pursuing reimbursement from the Covered Person of all or part of the compensation awarded or paid, by electing to withhold unpaid compensation, by set-off, or by rescinding or canceling unvested stock or option awards.

In the reasonable exercise of its business judgment under this Policy, the Compensation Committee may in its sole discretion determine whether and to what extent additional action is appropriate to address the circumstances surrounding a Restatement to minimize the likelihood of any recurrence and to impose such other discipline as it deems appropriate.

4. No Indemnification or Reimbursement

As required by applicable law, notwithstanding the terms of any other policy, program, agreement or arrangement, in no event will the Company or any of its affiliates indemnify or reimburse a Covered Person for any loss of Recoverable Incentive Compensation under this Policy and, to the extent prohibited by law, neither the Company nor any of its affiliates will pay premiums on any insurance policy that would cover a Covered Person’s potential obligations with respect to Recoverable Incentive Compensation under this Policy.

5. Administration of Policy

The Compensation Committee will have full authority to administer this Policy. The Compensation Committee will, subject to the provisions of this Policy and Rule 10D-1 of the Exchange Act, and the Company’s applicable exchange listing standards, make such determinations and interpretations and take such actions in connection with this Policy as it deems necessary, appropriate or advisable. It is intended that this Policy be interpreted in a manner that is consistent with the requirements of Section 10D of the Exchange Act, Rule 10D-1 thereunder and any applicable rules or standards adopted by the Securities and Exchange Commission or any national securities exchange on which the Company’s securities are listed. All determinations and interpretations made by the Compensation Committee will be final, binding and conclusive.

6. Other Claims and Rights

The requirements of this Policy are in addition to, and not in lieu of, any legal and equitable claims the Company or any of its affiliates may have or any actions that may be imposed by law enforcement agencies, regulators, administrative bodies, or other authorities. Further, the exercise by the Compensation Committee of any rights pursuant to this Policy will not impact any other rights that the Company or any of its affiliates may have with respect to any Covered Person subject to this Policy.

7. Acknowledgement by Covered Persons; Condition to Eligibility for Incentive Compensation

The Company will provide notice and seek acknowledgement of this Policy from each Covered Person, provided that the failure to provide such notice or obtain such acknowledgement will have no impact on the applicability or enforceability of this Policy. After the Effective Date (and also with respect to any Incentive Compensation Received on or after October 2, 2023 pursuant to a preexisting contract or arrangement), any grant of Incentive Compensation to a Covered Person

will be deemed to have been made subject to the terms of this Policy, whether or not such Policy is specifically referenced in the documentation relating to such grant and this Policy shall be deemed to constitute an integral part of the terms of any such grant. All Incentive Compensation subject to this Policy will remain subject to this policy, even if already paid, until this Policy ceases to apply to such Incentive Compensation and any other vesting conditions applicable to such Incentive Compensation are satisfied.

8. Amendment; Termination

The Board or the Compensation Committee may amend or terminate this Policy at any time. In the event that Section 10D of the Exchange Act, Rule 10D-1 thereunder or the rules of the national securities exchange on which the Company’s securities are traded are modified or supplemented, whether by law, regulation or legal interpretation, such modification or supplement shall be deemed to modify or supplement this Policy to the maximum extent permitted by applicable law.

9. Effectiveness

Except as otherwise determined in writing by the Compensation Committee, this Policy will apply to any Incentive Compensation that is Received by a Covered Person on or after the Effective Date. This Policy will survive and continue notwithstanding any termination of a Covered Person’s employment with the Company and its affiliates.

10. Successors

This Policy shall be binding and enforceable against all Covered Persons and their successors, beneficiaries, heirs, executors, administrators, or other legal representatives.

* * *

Exhibit A

CORBUS PHARMACEUTICALS HOLDINGS, INC.

COMPENSATION RECOVERY POLICY

DEFINITIONS EXHIBIT

“Applicable Period” means the three completed fiscal years of the Company immediately preceding the earlier of (i) the date the Board, a committee of the Board, or the officer or officers of the Company authorized to take such action if Board action is not required, concludes (or reasonably should have concluded) that a Restatement is required or (ii) the date a court, regulator, or other legally authorized body directs the Company to prepare a Restatement. The “Applicable Period” also includes any transition period (that results from a change in the Company’s fiscal year) within or immediately following the three completed fiscal years identified in the preceding sentence.

“Board” means the Board of Directors of the Company.

“Compensation Committee” means the Company’s committee of independent directors responsible for executive compensation decisions, or in the absence of such a committee, a majority of the independent directors serving on the Board.

“Covered Person” means any person who is, or was at any time, during the Applicable Period, an Executive Officer of the Company. For the avoidance of doubt, a Covered Person may include a former Executive Officer that left the Company, retired, or transitioned to an employee role (including after serving as an Executive Officer in an interim capacity) during the Applicable Period.

“Effective Date” means December 1, 2023.

“Executive Officer” means the Company’s president, principal executive officer, principal financial officer, principal accounting officer (or if there is no such accounting officer, the controller), any vice-president in charge of a principal business unit, division, or function (such as sales, administration, or finance), any other officer who performs a policy-making function, or any other person (including an officer of the Company’s parent(s) or subsidiaries) who performs similar policy-making functions for the Company.

“Financial Reporting Measure” means a measure that is determined and presented in accordance with the accounting principles used in preparing the Company’s financial statements, and any measure that is derived wholly or in part from such measure (including but not limited to, “non-GAAP” financial measures, such as those appearing in the Company’s earnings releases or Management Discussion and Analysis). Stock price and total shareholder return (and any measures derived wholly or in part therefrom) shall be considered Financial Reporting Measures.

“Recovery Exception” A recovery of Recoverable Incentive Compensation shall be subject to a “Recovery Exception” if the Compensation Committee determines in good faith that: (i) pursuing such recovery would violate the home country law of the jurisdiction of incorporation of the Company where that law was adopted prior to November 28, 2022 and the Company provides an opinion of home country counsel to that effect acceptable to the Company’s applicable listing exchange; (ii) the direct expense paid to a third party to assist in enforcing this Policy would exceed the Recoverable Incentive Compensation and the Company has (A) made a reasonable attempt to recover such amounts and (B) provided documentation of such attempts to recover to the Company’s applicable listing exchange; or (iii) recovery would likely cause an otherwise tax-qualified retirement plan, under which benefits are broadly available to employees of the Company, to fail to meet the requirements of Section 401(a)(13) or Section 411(a) of the Internal Revenue Code of 1986, as amended, and regulations thereunder.

“Incentive Compensation” means any compensation that is granted, earned, or vested based wholly or in part upon the attainment of a Financial Reporting Measure. Incentive Compensation does not include any base salaries (except with respect to any salary increases earned wholly or in part based on the attainment of a Financial Reporting Measure performance goal); bonuses paid solely at the discretion of the Compensation Committee or Board that are not paid from a “bonus pool” that is determined by satisfying a Financial Reporting Measure performance goal; bonuses paid solely upon satisfying one or more subjective standards and/or completion of a specified employment period; non-equity incentive plan awards earned solely upon satisfying one or more strategic measures or operational measures; and equity awards that vest solely based on the passage of time and/or attaining one or more non-Financial Reporting Measures. Incentive Compensation includes any Incentive Compensation Received on or after October 2, 2023 pursuant to a preexisting contract or arrangement.

“Received” Incentive Compensation is deemed “Received” in the Company’s fiscal period during which the Financial Reporting Measure specified in the Incentive Compensation award is attained, even if the payment or grant of the Incentive Compensation occurs after the end of that period.

“Recoverable Incentive Compensation” means the amount of any Incentive Compensation (calculated on a pre-tax basis) Received by a Covered Person during the Applicable Period that is in excess of the amount that otherwise would have been Received if the calculation were based on the Restatement. For Incentive Compensation based on (or derived from) stock price or total shareholder return where the amount of Recoverable Incentive Compensation is not subject to mathematical recalculation directly from the information in the applicable Restatement, the amount will be determined by the Compensation Committee based on a reasonable estimate of the effect of the Restatement on the stock price or total shareholder return upon which the Incentive Compensation was Received (in which case, the Company will maintain documentation of such determination of that reasonable estimate and provide such documentation to the Company’s applicable listing exchange).

“Restatement” means an accounting restatement of any of the Company’s financial statements filed with the Securities and Exchange Commission under the Exchange Act, or the Securities Act of 1933, as amended, due to the Company’s material noncompliance with any financial reporting requirement under U.S. securities laws, regardless of whether the Company or Covered Person misconduct was the cause for such restatement. “Restatement” includes any required accounting restatement to correct an error in previously issued financial statements that is material to the previously issued financial statements (commonly referred to as “Big R” restatements), or that would result in a material misstatement if the error were corrected in the current period or left uncorrected in the current period (commonly referred to as “little r” restatements).

XML

Cover - USD ($)

12 Months Ended

Dec. 31, 2023

Mar. 08, 2024

Jun. 30, 2023

Cover [Abstract]

Document Type

10-K

Amendment Flag

false

Document Annual Report

true

Document Transition Report

false

Document Period End Date

Dec. 31, 2023

Document Fiscal Period Focus

FY

Document Fiscal Year Focus

2023

Current Fiscal Year End Date

--12-31

Entity File Number

001-37348

Entity Registrant Name

Corbus Pharmaceuticals Holdings, Inc.

Entity Central Index Key

0001595097

Entity Tax Identification Number

46-4348039

Entity Incorporation, State or Country Code

DE

Entity Address, Address Line One

500 River Ridge Drive

Entity Address, City or Town

Norwood

Entity Address, State or Province

MA

Entity Address, Postal Zip Code

02062

City Area Code

617

Local Phone Number

963-0100

Title of 12(b) Security

Common Stock, par value $0.0001 per share

Trading Symbol

CRBP

Security Exchange Name

NASDAQ

Entity Well-known Seasoned Issuer

No

Entity Voluntary Filers

No

Entity Current Reporting Status

Yes

Entity Interactive Data Current

Yes

Entity Filer Category

Non-accelerated Filer

Entity Small Business

true

Entity Emerging Growth Company

false

Document Financial Statement Error Correction [Flag]

false

Entity Shell Company

false

Entity Public Float

$ 34,571,068

Entity Common Stock, Shares Outstanding

10,493,108

ICFR Auditor Attestation Flag

false

Documents Incorporated by Reference

None.

Auditor Firm ID

274

Auditor Location

Iselin, New Jersey

Auditor Name

EISNERAMPER LLP

XML

Consolidated Balance Sheets - USD ($)	Dec. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 13,723,681	$ 17,002,715
Investments	7,182,325	42,194,296
Restricted cash	192,475	192,475
Prepaid expenses and other current assets	2,447,549	791,616
Total current assets	23,546,030	60,181,102
Restricted cash	477,425	477,425
Property and equipment, net	973,214	1,613,815
Operating lease right-of-use assets	3,062,920	3,884,252
Other assets	212,804	155,346
Total assets	28,272,393	66,311,940
Current liabilities:
Notes payable	300,664	353,323
Accounts payable	3,178,516	2,173,963
Accrued expenses	11,030,506	5,999,252
Derivative liability	39,450	36,868
Operating lease liabilities, current	1,436,723	1,280,863
Current portion of long-term debt	15,908,214	2,795,669
Total current liabilities	31,894,073	12,639,938
Long-term debt, net of debt discount	0	15,984,426
Other long-term liabilities	44,411	22,205
Operating lease liabilities, noncurrent	3,238,631	4,675,354
Total liabilities	35,177,115	33,321,923
Stockholders' equity
Preferred stock, $0.0001 par value; 10,000,000 shares authorized, no shares issued and outstanding at December 31, 2023 and December 31, 2022. See Note 12	0	0
Common stock, $0.0001 par value; 300,000,000 shares authorized, 4,423,683 and 4,171,297 shares issued and outstanding at December 31, 2023 and December 31, 2022, respectively	442	417
Additional paid-in capital	429,780,375	425,196,359
Accumulated deficit	(436,683,983)	(392,080,667)
Accumulated other comprehensive loss	(1,556)	(126,092)
Total stockholders’ equity	(6,904,722)	32,990,017
Total liabilities and stockholders’ equity	$ 28,272,393	$ 66,311,940

XML

Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Preferred stock, par value	$ 0.0001	$ 0.0001
Preferred stock authorised	10,000,000	10,000,000
Preferred share, issued	0	0
Preferred stock outstanding	0	0
Common stock, par value	$ 0.0001	$ 0.0001
Common stock, shares authorized	300,000,000	300,000,000
Common stock, shares issued	4,423,683	4,171,297
Common Shares	4,423,683	4,171,297

XML

Consolidated Statements of Operations - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Operating expenses:
Research and development	$ 31,167,660	$ 16,136,826
General and administrative	13,909,641	18,698,619
Litigation settlement	0	5,000,000
Total operating expenses	45,077,301	39,835,445
Operating loss	(45,077,301)	(39,835,445)
Other income (expense), net:
Other income (expense), net	3,389,440	(48,773)
Interest income (expense), net	(2,923,974)	(2,132,091)
Change in fair value of derivative liability	(2,582)	96,842
Foreign currency transaction gain (loss), net	11,101	(427,436)
Other income (expense), net	473,985	(2,511,458)
Net loss	$ (44,603,316)	$ (42,346,903)
Net loss per share, basic	$ (10.31)	$ (10.15)
Net loss per share, diluted	$ (10.31)	$ (10.15)
Weighted average number of common shares outstanding, basic	4,327,568	4,170,675
Weighted average number of common shares outstanding, diluted	4,327,568	4,170,675
Comprehensive loss:
Net Income (Loss)	$ (44,603,316)	$ (42,346,903)
Other comprehensive income (loss):
Change in unrealized gain (loss) on marketable debt securities	124,536	(63,647)
Total other comprehensive income (loss)	124,536	(63,647)
Total comprehensive loss	$ (44,478,780)	$ (42,410,550)

XML

Consolidated Statement of Stockholders' Equity - USD ($)	Total	Series A Redeemable Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	AOCI Attributable to Parent [Member]
Beginning balance, value at Dec. 31, 2021	$ 69,108,027		$ 416	$ 418,903,820	$ (349,733,764)	$ (62,445)
Beginning balance, shares at Dec. 31, 2021			4,169,631
Issuance of common stock, net of issuance costs	1		$ 1
Issuance of common stock, net of issuance costs, shares			1,666
Stock-based compensation expense	5,719,637			5,719,637
Issuance of Series A Redeemable Preferred Stock, shares		1,002,247
Issuance of Series A Redeemable Preferred Stock		$ 100		(100)
Redemption of Series A Redeemable Preferred Stock	(100)	$ (100)
Redemption of Series A Redeemable Preferred Stock, shares		(1,002,247)
Change in fair value of debt conversion feature	573,002			573,002
Change in unrealized gain (loss) on marketable debt securities	(63,647)					(63,647)
Net Income (Loss)	(42,346,903)				(42,346,903)
Ending balance, value at Dec. 31, 2022	32,990,017		$ 417	425,196,359	(392,080,667)	(126,092)
Ending balance, shares at Dec. 31, 2022			4,171,297
Issuance of common stock, net of issuance costs	109,142		$ 1	109,141
Issuance of common stock, net of issuance costs, shares			14,106
Issuance of common stock upon conversion of K2 Loan and Security Agreement, Shares			194,444
Issuance of common stock upon conversion of K2 Loan and Security Agreement, Value	875,000		$ 19	874,981
Stock-based compensation expense	3,470,154			3,470,154
Issuance of common stock upon exercise of stock options	$ 129,745		$ 5	129,740
Issuance of common stock upon exercise of stock options, shares	43,836		43,836
Change in unrealized gain (loss) on marketable debt securities	$ 124,536					124,536
Net Income (Loss)	(44,603,316)				(44,603,316)
Ending balance, value at Dec. 31, 2023	$ (6,904,722)		$ 442	$ 429,780,375	$ (436,683,983)	$ (1,556)
Ending balance, shares at Dec. 31, 2023			4,423,683

XML

Consolidated Statement of Stockholders' Equity (Parenthetical) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Statement of Stockholders' Equity [Abstract]
Issuance costs incurred	$ 5,218	$ 0

XML

Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Cash flows from operating activities:
Net Income (Loss)	$ (44,603,316)	$ (42,346,903)
Adjustments to reconcile net loss to net cash used in operating activities:
Stock-based compensation expense	3,470,154	5,719,637
Depreciation and amortization	640,601	762,995
Net amortization on (discount) premium of investments	(506,166)	124,875
(Gain) loss on foreign currency transaction	(23,730)	648,520
Amortization of debt discount	824,381	742,478
Realized loss on investments	713	178,222
Change in fair value of derivative liability	2,582	(96,842)
Loss on sale of property and equipment	0	21,235
Changes in operating assets and liabilities:
(Increase) decrease in prepaid expenses and other current assets	(1,470,445)	1,573,394
Increase in other assets	(57,458)	(108,961)
Decrease in operating lease right-of-use asset	821,331	724,858
Increase (decrease) in accounts payable	1,028,283	(256,835)
Increase (decrease) in accrued expenses	5,031,254	(4,094,160)
Increase in other long-term liabilities	22,206	0
Decrease in operating lease liabilities	(1,280,863)	(1,136,948)
Net cash used in operating activities	(36,100,473)	(37,544,435)
Cash flows from investing activities:
Purchases of investments	(33,884,689)	(86,341,894)
Proceeds from sales and maturities of investments	69,526,650	116,421,376
Purchases of property and equipment	0	(13,449)
Proceeds from sale of property and equipment	0	8,100
Net cash used in investing activities	35,641,961	30,074,133
Cash flows from financing activities:
Proceeds from issuance of notes payable	373,320	452,250
Repayment of short-term borrowings	(425,980)	(866,865)
Proceeds from issuance of long-term borrowings		1,381,729
Repayment of long-term borrowings	(2,821,262)	(1,500,729)
Proceeds from issuance of common stock	244,302
Issuance costs paid for common stock financings	(190,902)
Net cash provided by financing activities	(2,820,522)	(533,615)
Net increase (decrease) in cash, cash equivalents, and restricted cash	(3,279,034)	(8,003,917)
Cash, cash equivalents, and restricted cash at beginning of the period	17,672,615	25,676,532
Cash, cash equivalents, and restricted cash at end of the period	14,393,581	17,672,615
Supplemental disclosure of cash flow information and non cash transactions:
Cash paid during the period for interest	2,607,474	1,969,583
Issuance of common stock for conversion of convertible debt	875,000	0
Write-off of fully depreciated property and equipment	$ 178,492	$ 0

XML

Pay vs Performance Disclosure - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Pay vs Performance Disclosure
Net Income (Loss)	$ (44,603,316)	$ (42,346,903)

XML

Insider Trading Arrangements	3 Months Ended
	Dec. 31, 2023
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

XML

NATURE OF OPERATIONS

12 Months Ended

Dec. 31, 2023

Organization, Consolidation and Presentation of Financial Statements [Abstract]

NATURE OF OPERATIONS

1.NATURE OF OPERATIONS

Business

Corbus Pharmaceuticals Holdings, Inc. (the "Company" or "Corbus") is a precision oncology company with a diversified portfolio and is committed to helping people defeat serious illness by bringing innovative scientific approaches to well-understood biological pathways. Corbus’ pipeline is comprised of two experimental drugs targeting solid tumors: CRB-701, a next-generation ADC that targets the expression of Nectin-4 on cancer cells to release a cytotoxic payload and CRB-601, an anti-integrin monoclonal antibody that blocks the activation of TGFβ expressed on cancer cells. The pipeline also includes CRB-913, a highly peripherally restricted CB1 receptor inverse agonist for the treatment of obesity. Since its inception, the Company has devoted substantially all of its efforts to business planning, research and development, recruiting management and technical staff, acquiring operating assets and raising capital. The Company’s business is subject to significant risks and uncertainties and the Company will be dependent on raising substantial additional capital before it becomes profitable, and it may never achieve profitability.

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LIQUIDITY

12 Months Ended

Dec. 31, 2023

Organization, Consolidation and Presentation of Financial Statements [Abstract]

LIQUIDITY

2.LIQUIDITY

The accompanying consolidated financial statements have been prepared assuming the Company will continue as a going concern, which contemplates continuity of operations, realization of assets and the satisfaction of liabilities and commitments in the normal course of business. The Company has incurred recurring losses since inception and as of December 31, 2023, had an accumulated deficit of approximately $436,684,000. The Company anticipates operating losses to continue for the foreseeable future due to, among other things, costs related to research funding, development of its product candidates and its pre-clinical and clinical programs, strategic alliances, and the development of its administrative organization. The Company expects the cash, cash equivalents, and investments of approximately $20,906,000 at December 31, 2023 together with net proceeds raised from the sale of its common stock under the Open Market Sales Agreement and the January 2024 Public Offering of approximately $109,000,000 after deducting commissions and other offering expenses payable by the Company will be sufficient to meet its operating and capital requirements at least 12 months from the issuance of these consolidated financial statements.

The source, timing and availability of any future financing will depend principally upon market conditions, and, more specifically, on the progress of the Company’s clinical development programs. Funding may not be available when needed, at all, or on terms acceptable to the Company. Lack of necessary funds may require the Company to, among other things, delay, scale back or eliminate some or all of the Company’s planned clinical or pre-clinical trials.

On May 31, 2023, the Company entered into the Open Market Sale Agreement with Jefferies, as sales agent, pursuant to which the Company may issue and sell, from time to time, through Jefferies, shares of its common stock, and pursuant to which Jefferies may sell its common stock by any method permitted by law deemed to be an “at-the-market offering” as defined by Rule 415(a)(4) promulgated under the Securities Act of 1933, as amended. The Company will pay Jefferies a commission of 3.0% of the aggregate gross proceeds from each sale of common stock and have agreed to provide Jefferies with customary indemnification and contribution rights. The Company has also agreed to reimburse Jefferies for certain specified expenses. As of June 13, 2023, the Company was authorized to offer and sell up to $16,800,000 of its common stock pursuant to the Open Market Sale Agreement. During the year ended December 31, 2023, the Company sold 14,106 shares of its common stock for which the Company received gross proceeds of approximately $114,000, less issuance costs incurred of approximately $5,200 (see Note 13).

As of January 29, 2024, the Company was authorized to offer and sell up to $75,000,000 of its common stock pursuant to the Open Market Sale Agreement, an increase from the previous Prospectus filed on June 13, 2023 for $16,800,000. Through January 29, 2024, the Company has sold approximately $21,237,000 in aggregate gross proceeds of shares of its common stock under the Open Market Sale Agreement.

On January 30, 2024, the Company delivered written notice to Jefferies suspending and terminating the ATM Prospectus Supplement, related to its common stock issuable pursuant to the Open Market Sale Agreement, pursuant to the terms of the Open Market Sale Agreement. The Company will not make any sales of its securities pursuant to the Open Market Sale Agreement, unless and until a new shelf registration statement and prospectus supplement are filed. Other than the termination of the ATM Prospectus Supplement, the Open Market Sale Agreement remains in full force and effect.

On January 31, 2024, the Company entered into an underwriting agreement with Jefferies, as representative of the several underwriters, relating to an underwritten public offering of 4,325,000 shares of the Company’s common stock, par value $0.0001, at a price to the public of $19.00 per share. The Underwriters were also granted a 30-day option to purchase up to an additional 648,750 shares of Common Stock at the public offering price. On January 31, 2024, the Representative gave notice to the Company of the Underwriters’ election to exercise the option to purchase additional shares, in full. On February 2, 2024, the Company completed the public offering raising gross proceed of approximately $94,500,000 and net proceeds of $88,500,000 after deducting underwriting discounts and commissions and other estimated offering expenses payable by the Company.

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SIGNIFICANT ACCOUNTING POLICIES

12 Months Ended

Dec. 31, 2023

Accounting Policies [Abstract]

SIGNIFICANT ACCOUNTING POLICIES

3.SIGNIFICANT ACCOUNTING POLICIES

A summary of the significant accounting policies followed by the Company in the preparation of the consolidated financial statements is as follows:

Basis of Presentation

The accompanying financial statements have been prepared in accordance with U.S. GAAP.

Reverse Stock Split

On February 14, 2023, the Company completed a 1-for-30 reverse stock split of its outstanding common stock (the “Reverse Stock Split”). The Reverse Stock Split did not change the number of authorized shares of common stock or par value. All references in these consolidated financial statements to shares, share prices, exercise prices, and other per share information in all periods have been adjusted, on a retroactive basis, to reflect the Reverse Stock Split (see Note 13).

Consolidation

The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All significant intercompany transactions and accounts have been eliminated in consolidation.

Use of Estimates

The process of preparing financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates and changes in estimates may occur. The most significant estimates are related to stock-based compensation expense (See Note 14), the accrual of research, product development and clinical obligations (see Note 10), and the valuation of warrants (see Note 9 and Note 15).

Cash, Cash Equivalents, and Restricted Cash

The Company considers only those investments which are highly liquid, readily convertible to cash, and that mature within 90 days from the date of purchase to be cash equivalents. At December 31, 2023 and 2022, cash equivalents were comprised of money market funds, commercial paper, and other debt securities with maturities less than 90 days from the date of purchase.

Restricted cash as of December 31, 2023 included security for a stand-by letter of credit issued in favor of a landlord for $669,900 of which $192,475 was classified in current assets and $477,425 was classified in noncurrent assets as of December 31, 2023.

Cash, cash equivalents, and restricted cash consist of the following:

	December 31, 2023	December 31, 2022
Cash	$4,028,733	$3,805,156
Cash equivalents	9,694,948	13,197,559
Cash and cash equivalents	13,723,681	17,002,715
Restricted cash, current	192,475	192,475
Restricted cash, noncurrent	477,425	477,425
Restricted cash	669,900	669,900
Total cash, cash equivalents, and restricted cash shown in the statement of cash    flows	$14,393,581	$17,672,615

As of December 31, 2023, all of the Company’s cash and cash equivalents was held in the U.S., except for approximately $3,772,000 of cash which was held in its subsidiaries in the United Kingdom and Australia. As of December 31, 2022, all of the Company’s cash and cash equivalents was held in the U.S., except for approximately $2,805,000 of cash which was held in its subsidiaries in the United Kingdom and Australia.

Investments

Investments consist of debt securities with maturities greater than 90 days at their acquisition date. The Company classifies any of its investments with maturities beyond one year as current, based on their highly liquid nature and because such investments represent the investment of cash that is available for current operations.

The Company classifies all of its marketable debt securities as available-for-sale securities. The Company’s marketable debt securities are measured and reported at fair value using quoted prices in active markets for similar securities. Unrealized gains and losses on available-for-sale debt securities that are not related to credit losses are reported as accumulated other comprehensive gain or loss, which is a separate component of stockholders’ equity. The cost of debt securities sold is determined on a specific identification basis, and realized gains and losses are included in other income (expense), net in the consolidated statements of operations and comprehensive loss.

The Company evaluates its marketable debt securities with unrealized losses for impairment. When assessing marketable debt securities for potential impairment, the Company considers available evidence, including the extent to which fair value is less than cost, whether an allowance for credit loss is required, and adverse factors that could affect the value of the securities. An impairment has occurred if the Company does not expect to recover the entire amortized cost basis of the marketable debt security. If the Company does not intend to sell the impaired debt security and it is not more likely than not required to sell the debt security before the recovery of its amortized cost basis, the amount of the impairment related to credit losses is recognized in an allowance for credit losses with an offsetting entry to Other income (expense), net. The remaining portion of the impairment related to other factors is recognized in Other comprehensive loss. Realized gains and losses for debt securities are included in Other income (expense), net. No such adjustments were necessary during the periods presented.

Concentrations of Credit Risk

The Company has no significant off-balance sheet concentration of credit risk such as foreign exchange contracts, option contracts or other hedging arrangements. The Company may, from time to time, have cash in its U.S. banks in excess of Federal Deposit Insurance Corporation insurance limits and in its foreign banks in excess of their local insurance limits. However, the Company believes the risk of loss is minimal as these banks are large financial institutions.

Financial Instruments

The carrying values of the notes payable and debt approximate their fair value due to the fact that they are at market terms.

Fair Value Measurements

The valuation of the Company’s debt and embedded derivatives are determined primarily by an income approach that considers the present value of net cash flows of the debt with and without prepayment and default features. These embedded debt features, which are determined to be classified as derivative liabilities are marked-to-market each reporting period, with a corresponding non-cash gain or loss charged to the current period. As such, fair value is a market-based measurement that should be determined based on assumptions that market participants would use in pricing an asset or liability. As a basis for considering such assumptions, there exists a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value as follows:

Level 1 – Unadjusted quoted prices in active markets for identical assets or liabilities that the Company has the ability to access as of the measurement date

Level 2 – Inputs other than quoted prices included within Level 1 that are directly observable for the asset or liability or indirectly observable through corroboration with observable market data

Level 3 – Unobservable inputs for the asset or liability only used when there is little, if any, market activity for the asset or liability at the measurement date

The Company’s investments, debt, and its derivative liabilities are carried at fair value determined according to the fair value hierarchy described above. The carrying values of the Company’s prepaid expenses and other current assets and accrued expenses approximate their fair values due to the short-term nature of these assets and liabilities.

To determine the fair value of our embedded derivatives, management evaluates assumptions regarding the probability of certain future events. Other factors used to determine fair value include the discount rate, risk-free interest rate, and derivative term. The fair value recorded for the derivative liability varies from period to period. This variability may result in the actual derivative liability for a period either above or below the estimates recorded on our consolidated financial statements, resulting in fluctuations in other income (expense) because of the corresponding non-cash gain or loss recorded.

Property and Equipment

The estimated life for the Company’s property and equipment is as follows: three years for computer hardware and software and three to five years for office furniture and equipment. The Company’s leasehold improvements and assets under capital lease are amortized over the shorter of their useful lives or the respective leases. See Note 7 for details of property and equipment and Note 8 for operating and capital lease commitments.

Leases

The Company determines if an arrangement is a lease at inception. Operating leases are included in operating lease right-of-use (“ROU”) assets and operating lease liabilities current and noncurrent in the Company’s consolidated balance sheets.

ROU assets represent the Company’s right to use an underlying asset for the lease term and lease liabilities represent its obligation to make lease payments arising from the lease. ROU assets and liabilities are recognized at commencement date based on the present value of lease payments over the lease term. As the Company’s leases do not provide an implicit rate, the Company uses an incremental borrowing rate based on the information available at commencement date in determining the present value of lease payments. This is the rate the Company would have to pay if borrowing on a collateralized basis over a similar term to each lease. The ROU asset also includes any lease payments made and excludes lease incentives. Lease expense for lease payments is recognized on a straight-line basis over the lease term.

The Company has subleased a portion of its leased facility under an agreement considered to be an operating lease according to U.S. GAAP. The Company has not been legally released from its primary obligations under the original lease and therefore it continues to account for the original lease as it did before commencement of the sublease. The Company will record both fixed and variable payments received from the sublessee in its statement of operations on a straight-line basis as an offset to rent expense.

Accruals for Research and Development Expenses and Clinical Trials

As part of the process of preparing its financial statements, the Company is required to estimate its expenses resulting from its obligations under contracts with vendors, clinical research organizations and consultants and under clinical site agreements in connection with conducting clinical trials. The financial terms of these contracts are subject to negotiations, which vary from contract to contract and may result in payment terms that do not match the periods over which materials or services are provided under such contracts. The Company’s objective is to reflect the appropriate expenses in its financial statements by matching those expenses with the period in which services are performed and efforts are expended. The Company accounts for these expenses according to the timing of various aspects of the expenses. The Company determines accrual estimates by taking into account discussions with applicable internal personnel and outside service providers as to the progress of clinical trials, or the services completed. During the course of a clinical trial, the Company adjusts its clinical expense recognition if actual results differ from its estimates. The Company makes estimates of its accrued expenses as of each balance sheet date based on the facts and circumstances known to it at that time. The Company’s clinical trial accruals are dependent upon the timely and accurate reporting of contract research organizations ("CROs") and other third-party vendors. Although the Company does not expect its estimates to be materially different from amounts actually incurred, its understanding of the status and timing of services performed relative to the actual status and timing of services performed may vary and may result in it reporting amounts that are too high or too low for any particular period. For the years ended December 31, 2023 and 2022, there were no material adjustments to the Company’s prior period estimates of accrued expenses for clinical trials.

Revenue Recognition

We recognize revenue in accordance with Accounting Standards Codification (“ASC”) 606, Revenue from Contracts with Customers (“ASC 606”), which applies to all contracts with customers, except for contracts that are within the scope of other standards, such as leases, insurance, collaboration arrangements, and financial instruments. Under ASC 606, we recognize revenue when our customer obtains control of promised goods or services, in an amount that reflects the consideration which we expect to receive in exchange for those goods or services. To determine revenue recognition for arrangements that we determine are within the scope of ASC 606, we perform the following five steps: (i) identify the contract(s) with a customer; (ii) identify the performance obligations in the contract; (iii) determine the transaction price; (iv) allocate the transaction price to the performance obligations in the contract; and (v) recognize revenue when (or as) we satisfy a performance obligation. At contract inception, once the contract is determined to be within the scope of ASC 606, we assess the goods or services promised within each contract and determine those that are performance obligations and assess whether each promised good or service is distinct. We then recognize as revenue the amount of the transaction price that is allocated to the respective performance obligation when (or as) the performance obligation is satisfied. No revenue was recognized in the years ending December 31, 2023 and December 31, 2022.

Research and Development Expenses

Costs incurred for research and development are expensed as incurred.

Nonrefundable advance payments for goods or services that have the characteristics that will be used or rendered for future research and development activities pursuant to executory contractual arrangements with third-party research organizations are deferred and recognized as an expense as the related goods are delivered or the related services are performed.

Asset Acquisitions

We account for asset acquisitions under the accounting standards for business combinations and research and development, as applicable. In-process research and development acquired in an asset acquisition is expensed immediately unless there is an alternative future use. Subsequent payments made for the achievement of milestones are evaluated to determine whether they have an alternative future use or should be expensed.

Segment Information

Operating segments are identified as components of an enterprise about which separate discrete financial information is available for evaluation by the chief operating decision maker, or decision-making group, in making decisions regarding resource allocation and assessing performance. To date, the Company has viewed its operations and manages its business as principally one operating segment, which is developing and commercializing therapeutics for cancer and obesity. As of December 31, 2023, all of the Company’s assets were located in the U.S., except for approximately $3,772,000 of cash and cash equivalents and $1,192,000 of prepaid expenses and other assets which were held outside of the U.S., principally in its subsidiary in the United Kingdom. As of December 31, 2022, all of the Company’s assets were located in the U.S., except for approximately $2,805,000 of cash and cash equivalents and $136,000 of prepaid expenses and other assets which were held outside of the U.S., principally in its subsidiary in the United Kingdom.

Income Taxes

For federal and state income taxes, deferred tax assets and liabilities are recognized based upon temporary differences between the financial statement and the tax basis of assets and liabilities. Deferred income taxes are based upon prescribed rates and enacted laws applicable to periods in which differences are expected to reverse. A valuation allowance is recorded to reduce a net deferred tax benefit when it is not more likely than not that the tax benefit from the deferred tax assets will be realized. Accordingly, given the cumulative losses since inception, the Company has provided a valuation allowance equal to 100% of the deferred tax assets in order to eliminate the deferred tax assets amounts.

Tax positions taken or expected to be taken in the course of preparing the Company’s tax returns are required to be evaluated to determine whether the tax positions are “more-likely-than-not” of being sustained by the applicable tax authority. Tax positions not deemed to meet a more-likely-than-not threshold, as well as accrued interest and penalties, if any, would be recorded as a tax expense in the current year. There were no uncertain tax positions that require accrual or disclosure to the financial statements as of December 31, 2023 or 2022.

Impairment of Long-lived Assets

The Company continually monitors events and changes in circumstances that could indicate that carrying amounts of long-lived assets may not be recoverable. An impairment loss is recognized when expected undiscounted cash flows of an asset are less than an asset’s carrying value. Accordingly, when indicators of impairment are present, the Company evaluates the carrying value of such assets in relation to the operating performance and future undiscounted cash flows of the underlying assets. An impairment loss equal to the excess of the fair value of the asset over its carrying amount, is recorded when it is determined that the carrying value of the asset may not be recoverable. The Company notes no impairment charges were taken in 2023 or 2022. See Note 8 for more details on sublease agreement.

Stock-based Compensation

The Company recognizes compensation costs resulting from the issuance of stock-based awards, including stock options and restricted stock units (“RSUs”), to employees, non-employees, and directors as an expense in the statements of operations and comprehensive loss over the service period based on a measurement of fair value for each stock-based award. The fair value of each stock option grant is estimated as of the date of grant using the Black-Scholes option-pricing model. The fair value of restricted stock units is the quoted closing market price per share on the grant date. Forfeitures are estimated on the grant date based on historical experience and management’s expectations of future forfeitures. To the extent actual forfeitures differ from the estimates, the difference is recorded as a cumulative adjustment in the period in which the estimates are revised. The fair value of each grant is amortized as compensation cost on a straight-line basis over the requisite service period of the awards, which is generally the vesting period.

Foreign Currency

Transaction gains and losses arising from currency exchange rate fluctuations on transactions denominated in a currency other than the U.S. Dollar functional currency are recorded in Other income (expense), net in the Company’s statements of operations and comprehensive loss. Such transaction gains and losses may be realized or unrealized depending upon whether the transaction settled during the period or remains outstanding at the balance sheet date. The functional currency of the Company's foreign subsidiaries is the U.S. Dollar.

Net Loss Per Common Share

Basic and diluted net loss per share of the Company’s common stock has been computed by dividing net loss by the weighted average number of shares outstanding during the period. For years in which there is a net loss, options and warrants are anti-dilutive and therefore excluded from diluted loss per share calculations. The following table sets forth the computation of basic and diluted earnings per share for the years ended December 31, 2023 and 2022:

	Year Ended December 31,
	2023			2022
Net loss	$	(44,603,316	)	$	(42,346,903	)
Weighted average number of common shares-basic		4,327,568			4,170,675
Net loss per share of common stock-basic	$	(10.31	)	$	(10.15	)

Stock options and warrants that have not been exercised and unvested restricted stock units (See Notes 14 and 15) have been excluded from the diluted calculation as all periods presented have a net loss and the impact of these securities would be anti-dilutive.

Recently Adopted Accounting Pronouncements

In June 2016, the FASB issued ASU 2016-13, Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments (“ASU 2016-13”), which requires the measurement and recognition of expected credit losses for financial assets held at amortized cost. ASU 2016-13 replaces the existing incurred loss impairment model with an expected loss model. It also eliminates the concept of other-than-temporary impairment and requires credit losses related to available-for-sale debt securities to be recorded through an allowance for credit losses rather than as a reduction in the amortized cost basis of the securities. These changes may result in earlier recognition of credit losses. In November 2018, the FASB issued ASU No. 2018-19, Codification Improvements to Topic 326, Financial Instruments—Credit Losses, which narrowed the scope and changed the effective date for non-public entities for ASU 2016-13. The FASB subsequently issued supplemental guidance within ASU No. 2019-05, Financial Instruments—Credit Losses (Topic 326): Targeted Transition Relief (“ASU 2019-05”). ASU 2019-05 provides an option to irrevocably elect the fair value option for certain financial assets previously measured at amortized cost basis. The Company's adoption of ASU 2016-13 as of January 1, 2023 had no impact on the Company's financial statements as there are no assets held at amortized cost on the balance sheet, and there are no credit losses associated with our available-for-sale debt securities.

In August 2020, the FASB issued ASU 2020-06, Debt—Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging—Contracts in Entity’s Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity which is intended to simplify various aspects of U.S. GAAP for certain financial instruments with characteristics of liabilities and equity. The Company's early adoption of ASU 2020-06 as of January 1, 2023 had no impact on the Company's financial statements and disclosures.

Recently Issued Accounting Pronouncements

The Company considers the applicability and impact of all ASUs. Management determined that although recently issued ASUs may enhance disclosures, the ASUs are not expected to have a material impact on its consolidated financial statements.

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INVESTMENTS

12 Months Ended

Dec. 31, 2023

Investments, Debt and Equity Securities [Abstract]

INVESTMENTS

4. INVESTMENTS

The following table summarizes the Company’s investments as of December 31, 2023:

	Amortized Cost	Gross Unrealized Gain	Gross Unrealized Losses	Fair Value
Debt Securities:
Corporate debt securities	$7,183,066	$679	$(1,420)	$7,182,325
Total	$7,183,066	$679	$(1,420)	$7,182,325

The following table summarizes the amortized cost and fair value of the Company’s available-for-sale marketable debt securities by contractual maturity as of December 31, 2023 (in thousands):

	Amortized Cost	Fair Value
Maturing in one year or less	$7,183,066	$7,182,325
	$7,183,066	$7,182,325

The following table summarizes the Company’s investments as of December 31, 2022:

	Amortized Cost	Gross Unrealized Gain	Gross Unrealized Losses	Fair Value
Debt Securities:
Commercial paper	$12,173,980	$—	$—	$12,173,980
Corporate debt securities	30,146,060	—	(125,744)	30,020,316
Total	$42,320,040	$—	$(125,744)	$42,194,296

The following table summarizes the amortized cost and fair value of the Company’s available-for-sale marketable debt securities by contractual maturity as of December 31, 2022:

	Amortized Cost	Fair Value
Maturing in one year or less	$42,320,040	$42,194,296
	$42,320,040	$42,194,296

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FAIR VALUE OF FINANCIAL ASSETS AND LIABILITIES

12 Months Ended

Dec. 31, 2023

Fair Value Disclosures [Abstract]

FAIR VALUE OF FINANCIAL ASSETS AND LIABILITIES

5. FAIR VALUE OF FINANCIAL ASSETS AND LIABILITIES

The following tables present information about the Company’s financial assets and liabilities measured at fair value on a recurring basis and indicate the level of the fair value hierarchy utilized to determine such fair values as of December 31, 2023:

	Level 1	Level 2	Level 3	Total
Assets:
Cash Equivalents:
Money market funds	$7,832,675	$—	$—	$7,832,675
Corporate debt securities	—	1,862,273	—	1,862,273
Investments:
Corporate debt securities	—	7,182,325	—	7,182,325
	$7,832,675	$9,044,598	$—	$16,877,273
Liabilities:
Derivative liabilities	$—	$—	$39,450	$39,450

The following tables present information about the Company’s financial assets and liabilities measured at fair value on a recurring basis and indicate the level of the fair value hierarchy utilized to determine such fair values as of December 31, 2022:

	Level 1	Level 2	Level 3	Total
Assets:
Cash Equivalents:
Money Market funds	$8,470,790	$—	$—	$8,470,790
Commercial paper	—	1,494,538	—	1,494,538
Corporate debt securities	—	3,232,231	—	3,232,231
Investments:
Commercial paper	—	12,173,980	—	12,173,980
Corporate debt securities	—	30,020,316	—	30,020,316
	$8,470,790	$46,921,065	$—	$55,391,855
Liabilities:
Derivative liabilities	$—	$—	$36,868	$36,868

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LICENSE AGREEMENT

12 Months Ended

Dec. 31, 2023

License Agreements

LICENSE AGREEMENT

6.LICENSE AGREEMENTS

The Company entered into a license agreement (the “Jenrin License Agreement”) with Jenrin Discovery, LLC (“Jenrin”), a privately held Delaware limited liability company, effective September 20, 2018. Pursuant to the Jenrin License Agreement, Jenrin granted the Company exclusive worldwide rights to develop and commercialize the Licensed Products (as defined in the Jenrin Agreement) which includes the Jenrin library of over 600 compounds and multiple issued and pending patent filings. The compounds are designed to treat inflammatory and fibrotic diseases by targeting the endocannabinoid system.

In consideration of the license and other rights granted by Jenrin, the Company paid Jenrin a $250,000 upfront cash payment and is obligated to pay potential milestone payments to Jenrin totaling up to $18,400,000 for each compound it elects to develop based upon the achievement of specified development and regulatory milestones. In addition, Corbus is obligated to pay Jenrin royalties in the mid, single digits based on net sales of any Licensed Products, subject to specified reductions.

The Company entered into a license agreement (the “Milky Way License Agreement”) with Milky Way BioPharma, LLC (“Milky Way”), a subsidiary of Panorama Research Inc., effective May 25, 2021. Pursuant to the Milky Way License Agreement, the Company received an exclusive license, under certain patent rights and know-how owned or controlled by Milky Way, to develop, commercialize, and otherwise exploit products containing antibodies against integrin αvβ6 and/or integrin αvβ8 (“Licensed Products”), one of which the Company is referring to as CRB-602. Under the terms of the Milky Way License Agreement, the Company will have sole responsibility for research, development, and commercialization of any Licensed Products, and Company has agreed to use commercially reasonable efforts to perform these activities. The Milky Way Agreement may be terminated earlier in specified situations, including termination for material breach or termination by Corbus with advance notice. A notice of termination without reason was executed by Corbus and sent to Milky Way BioPharma, LLC on January 25, 2024.

The Company entered into a license agreement (the “UCSF License Agreement”) with the Regents of the University of California (“The Regents”) effective May 26, 2021. Pursuant to the UCSF License Agreement, the Company received an exclusive license to certain patents relating to humanized antibodies against integrin αvβ8, one of which the Company is referring to as CRB-601, along with non-exclusive licenses to certain related know-how and materials. The Company amended the UCSF License Agreement with The Regents effective November 17, 2022 adding additional antibody patents to the agreement.

In consideration for the license and other rights granted to the Company under the UCSF License Agreement, the Company paid The Regents a license issue fee of $1,500,000. In consideration for the additional antibody patents granted to the Company, the Company will pay The Regents a license issue fee of $750,000, payable in two equal installments of $375,000 (first payment paid during the first quarter 2023 and the second payment due on the first anniversary of the Amendment Effective Date).

The Company further amended the UCSF License Agreement with The Regents effective August 14, 2023 to incorporate certain new technology rights and amend the payment schedule for the development milestone for the filing of patent rights and the development milestone for the filing of an IND.

In addition to the license issuance fees, the Company is obligated to pay an annual license maintenance fee, as well as up to $153,150,000 in potential milestone payments, excluding indication milestones for antibodies used for diagnostic products and services that will be an additional $50,000 for each new indication, for the achievement of certain development, regulatory, and sales milestones. In addition, the Company is also obligated to pay royalties in the lower, single digits on sales of products falling within the scope of the licensed patents, which is subject to a minimum annual royalty obligation, and a percentage share of certain payments received by Company from sublicensees or in connection with the sale of the licensed program.

The Company entered into the CSPC License Agreement with CSPC effective February 12, 2023. Pursuant to the CSPC License Agreement, the Company received an exclusive license to develop and commercialize a novel clinical stage antibody drug conjugate targeting Nectin-4, which the Company is referring to as CRB-701, in the U.S., Canada, the European Union (including the European Free Trade Area), the United Kingdom, and Australia.

In consideration for the license granted to the Company under the CSPC License Agreement, the Company will pay CSPC an upfront payment of $7,500,000 ($5,000,000 paid at signing during the first quarter 2023 followed by a $2,500,000 payment due in August 2024). The Company is obligated to pay potential milestone payments to CSPC totaling up to $130,000,000 based upon the achievement of specified development and regulatory milestones and $555,000,000 in potential commercial milestone payments. In addition, we are obligated to pay royalties in the low double digits based on net sales of any Licensed Products, as defined in the CSPC License Agreement.

The Company determined that substantially all of the fair value of the Jenrin License Agreement and CSPC License Agreement was attributable to a single in-process research and development asset which did not constitute a business. The Company determined that substantially all of the fair value of the Milky Way License Agreement and the UCSF License Agreement was attributable to separate groups of in-process research and development assets which did not constitute a business. The Company concluded that it did not have any alternative future use for the acquired in-process research and development assets. Thus, the Company recorded the various upfront payments to research and development expenses in the quarter the license deals became effective. The Company will account for the development, regulatory, and sales milestone payments in the period that the relevant milestones are achieved as either research and development expense or as an intangible asset as applicable. In the year ended December 31, 2023, the Company recorded the $7,500,000 upfront license payment to CSPC as research and development expense, which includes the $5,000,000 paid in cash up front and $2,500,000 recorded as an accrued expense. Under the UCSF License Agreement, the Company also recorded a $1,200,000 development milestone for the filing of patent rights and a $1,225,000 development milestone for the filing of the IND as research and development expense, which includes $2,325,000 in accrued expense ($300,000 currently due, $400,000 due on June 30, 2024, and $1,625,000 due on December 30, 2024) based upon an amended payment schedule.

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PROPERTY AND EQUIPMENT

12 Months Ended

Dec. 31, 2023

Property, Plant and Equipment [Abstract]

PROPERTY AND EQUIPMENT

7.PROPERTY AND EQUIPMENT

Property and equipment consisted of the following:

	December 31, 2023			December 31, 2022
Computer hardware and software	$	83,711		$	262,203
Office furniture and equipment		1,113,980			1,113,980
Leasehold improvements		3,330,855			3,330,855
Property and equipment, gross		4,528,546			4,707,038
Less: accumulated depreciation		(3,555,332	)		(3,093,223	)
Property and equipment, net	$	973,214		$	1,613,815

Depreciation expense was approximately $641,000 and $763,000 for the years ended December 31, 2023 and 2022, respectively.

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COMMITMENTS AND CONTINGENCIES

12 Months Ended

Dec. 31, 2023

Commitments and Contingencies Disclosure [Abstract]

COMMITMENTS AND CONTINGENCIES

8.COMMITMENTS AND CONTINGENCIES

Operating Lease Commitment

On August 21, 2017, the Company entered into a lease agreement (“August 2017 Lease Agreement”), which has been subsequently amended on February 26, 2019 (“February 2019 Lease Agreement”) and October 25, 2019 (“October 2019 Lease Amendment”) for commercial lease of office space, pursuant to which the Company has agreed to lease an aggregate total of 63,256 square feet of office space (“Total Premises”). The term of the lease is through November 30, 2026.

Per the terms of the August 2017 Lease Agreement and the February 2019 Lease Agreement, the landlord agreed to reimburse the Company for approximately $2,071,000 of leasehold improvements. The reimbursements have been deferred and will be recognized as a reduction of rent expense over the term of the lease. Additionally, the August 2017 Lease Agreement and the February 2019 Lease Agreement required a standby irrevocable letter of credit of $769,900, which will be reduced, if the Company is not in default under the agreement on the third and fourth anniversary of the commencement date and have unencumbered funds in excess of $50,000,000. As of December 31, 2023, the Company has an unsecured letter of credit for $669,900 in connection with the lease agreements.

The following table contains a summary of the lease costs recognized under ASC 842 and other information pertaining to the Company’s operating leases for the year ended December 31, 2023 and 2022:

	2023			2022
Lease cost
Operating lease cost	$	1,240,473		$	1,240,473
Total lease cost	$	1,240,473		$	1,240,473
Other information
Weighted average remaining lease term	2.8 years			3.8 years
Weighted average discount rate		8.00	%		8.00	%

Total rent expense for the years ended December 31, 2023 and 2022 was $1,700,005 and $1,652,563, respectively. Rent expense for the years ended December 31, 2023 and 2022 was offset by $226,153 and $220,531, respectively, of sublease income.

Pursuant to the terms of the Company’s non-cancelable lease agreements in effect at December 31, 2023, the following table summarizes the Company’s maturities of operating lease liabilities as of December 31, 2023:

2024	$1,747,447
2025	1,794,889
2026	1,688,145
Total lease payments	$5,230,481
Less: imputed interest	(555,127)
Total	$4,675,354

Sublease Commitment

Effective August 26, 2021, the Company entered into a sublease agreement with a third party to sublease 12,112 square feet of the 30,023 square feet currently being leased under one of its two existing lease agreements. The sublease commenced on October 1, 2021 and was scheduled to end on October 31, 2026, however, it is in the process of being terminated early. The Company notes sublease income of $226,153 and $220,531 was recognized and offset against rent expense for the years ended December 31, 2023 and 2022, respectively.

Undiscounted sublease cash inflows have been summarized in the following table:

2024	$279,585
2025	291,697
2026	252,333
Total sublease payments	$823,615

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NOTES PAYABLE

12 Months Ended

Dec. 31, 2023

Debt Disclosure [Abstract]

NOTES PAYABLE

9.NOTES PAYABLE

D&O Financing

In November 2021, the Company entered into a loan agreement with a financing company for $984,375 to finance one of the Company’s insurance policies. The terms of the loan stipulate equal monthly payments of principal and interest payments of $111,041 over a nine-month period. Interest accrues on this loan at an annual rate of 3.64%. This loan was fully repaid in July 2022.

In November 2022, the Company entered into a loan agreement with a financing company for $452,250 to finance one of the Company’s insurance policies. The terms of the loan stipulate equal monthly payments of principal and interest payments of $51,387 over a nine-month period. Interest accrues on this loan at an annual rate of 5.4%. This loan was fully repaid in July 2023.

In November 2023, the Company entered into a loan agreement with a financing company for $373,320 to finance one of the Company’s insurance policies. The terms of the loan stipulate equal monthly payments of principal and interest payments of $38,741 over a ten-month period. Interest accrues on this loan at an annual rate of 8.15%. Prepaid expenses as of December 31, 2023 and December 31, 2022, included approximately $345,667 and $418,750, respectively, related to the underlying insurance policy being financed.

Loan and Security Agreement with K2 HealthVentures LLC

On July 28, 2020, the Company, with its subsidiary, Corbus Pharmaceuticals, Inc., as borrower, entered into a secured Loan and Security Agreement with K2HV, an unrelated third party, and received $20,000,000 upon signing. The loan matures on August 1, 2024 and the Company is obligated to make interest only payments for the first 24 months and then interest and equal principal payments for the next 24 months commencing on September 1, 2022. The Company entered into an Amendment to the Loan and Security Agreement (the "Amended Loan and Security Agreement") on October 25, 2022. The Amended Loan and Security Agreement defers the commencement of principal repayments by a one-year period from September 1, 2022 to September 1, 2023 and if the Company raises at least $30 million in net proceeds through capital raising transactions, the commencement of principal repayments will be deferred by an additional six months to March 1, 2024. Interest accrues at a variable annual rate equal to the greater of (i) 8.5% and (ii) the rate of interest noted in The Wall Street Journal, Money Rates section, as the “Prime Rate” plus 5.25%, in each case, subject to a step-down of 25 basis points upon the funding of the second tranche. The interest rate at December 31, 2023 was 13.75%.

In accordance with ASC Topic No. 470-50, “Debt – Modifications and Extinguishments” (Topic No. 470), the amendment noted above was determined to be a modification, thus no gain or loss was recorded.

Pursuant to the Loan and Security Agreement, K2HV may elect to convert up to $5,000,000 of the outstanding loan balance into shares of the Company’s common stock at a conversion price of $282.00 per share. The Amended Loan and Security Agreement adjusts the conversion price of $2,000,000 of the maximum $5,000,000 convertible amount by adjusting the conversion price of $875,000 of the loan from $282.00 per share to $4.50 per share, and $1,125,000 of the loan from $282.00 per share to $7.875 per share. The remaining $3,000,000 will continue to have a conversion price of $282.00 per share. The decrease in the conversion price resulted in an increase in the fair value of the conversion option of $573,000, which was recorded as an increase to the debt discount and additional paid in capital as of December 31, 2022. On June 1, 2023, K2HV converted $875,000 of the outstanding loan balance into 194,444 shares of the Company's stock at a conversion price of $4.50 per share. As of December 31, 2023, $4,125,000 of the outstanding loan balance remains available to convert into shares of the Company's common stock. On March 6, 2024, K2HV converted $1,125,000 of the outstanding loan balance into 142,857 shares of the Company's stock at a conversion price of $7.875 per share.

In connection with the Loan and Security Agreement, on July 28, 2020, the Company issued K2HV a warrant to purchase up to 2,873 common shares (the “K2 Warrant”) at an exercise price of $208.80 (the “Warrant Price”). The K2 Warrant may be exercised either for cash or on a cashless “net exercise” basis and expires on July 28, 2030. The total proceeds attributed to the K2 Warrant was approximately $472,000 based on the relative fair value of the K2 Warrant as compared to the sum of the fair values of the K2 Warrant, prepayment feature, default feature, and debt. Total proceeds attributed to the prepayment and default features was approximately $546,000. The Company also incurred approximately $1,244,000 of debt issuance costs from the Loan and Security Agreement. In connection with entering into the Amended Loan and Security Agreement, the Company incurred an additional $119,000 of debt issuance costs. The proceeds attributed to the K2 Warrant, the prepayment and default features, and the debt issuance costs are all included in the debt discount. The Company is required to make a final payment in excess of the stated principal equal to approximately $1,590,000. See Note 15 for more detail on assumptions used in the valuation of the K2 warrant and see Note 16 for more information on the assumptions used in valuation of the default and prepayment features.

The total principal amount of the loan under the Amended Loan and Security Agreement outstanding at December 31, 2023, including the $1,590,000 final payment discussed above, is $17,893,738.

Upon the occurrence of an Event of Default (as defined in the Loan and Security Agreement), and during the continuance of an Event of Default, the applicable rate of interest, described above, will be increased by 5.00% per annum. The secured term loan maturity date is August 1, 2024, and the Loan and Security Agreement includes both financial and non-financial covenants. The Company was in compliance with these covenants as of December 31, 2023. The obligations under the Loan and Security Agreement are secured on a senior basis by a lien on substantially all of the assets of the Company and its subsidiaries. The subsidiaries of the Company are guarantors of the obligations of the Company under the Loan and Security Agreement.

The total debt discount related to the Amended Loan and Security Agreement of approximately $2,954,000 is being charged to interest expense using the effective interest method over the term of the debt. At December 31, 2023 and December 31, 2022, the fair value of our outstanding debt, which is considered Level 3 in the fair value hierarchy, approximates carrying value. Interest expense for the year ended December 31, 2023 was approximately $3,810,000. Interest expense for the year ended December 31, 2022 was approximately $3,097,000.

The net carrying amounts of the liability components consists of the following:

	December 31, 2023			December 31, 2022
Principal	$	16,303,738		$	20,000,000
Less: debt discount		(2,954,390	)		(2,954,390	)
Accretion of debt discount		2,558,866			1,734,485
Net carrying amount	$	15,908,214		$	18,780,095
Less: current portion of long-term debt		(15,908,214	)		(2,795,669	)
Total long-term debt, net of discount	$	-		$	15,984,426

The following table summarizes the future principal payments, including the $1,590,000 final payment, due under the current portion of long-term debt:

Quarterly Periods Ending	Principal Payments and final payment on Loan Agreement
March 31, 2024	$2,205,970
June 30, 2024	2,279,075
September 30, 2024	13,408,693
December 31, 2024	—
Total Fiscal Year Ending 2024		17,893,738
Total		$17,893,738

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ACCRUED EXPENSES

12 Months Ended

Dec. 31, 2023

Payables and Accruals [Abstract]

ACCRUED EXPENSES

10.ACCRUED EXPENSES

Accrued expenses consisted of the following:

	December 31, 2023		December 31, 2022
Accrued pre-clinical and clinical costs	$	6,274,188	$	2,137,317
Accrued product development costs		745,447		247,500
Accrued compensation		2,325,488		2,224,951
Accrued administrative costs		343,285		473,376
Accrued interest		1,342,098		916,108
Total	$	11,030,506	$	5,999,252

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INCOME TAXES

12 Months Ended

Dec. 31, 2023

Income Tax Disclosure [Abstract]

INCOME TAXES

11.INCOME TAXES

No provision or benefit for federal or state income taxes has been recorded, as the Company has incurred a net loss for all of the periods presented, and the Company has provided a full valuation allowance against its deferred tax assets.

The components of the Company's net loss are as follows:

	December 31,
	2023	2022
United States	$(36,133,358)	$(34,842,427)
United Kingdom	(8,455,452)	(7,550,356)
Australia	(14,506)	45,880
Total	$(44,603,316)	$(42,346,903)

Our foreign subsidiaries in the United Kingdom and Australia may qualify for refundable research and development tax credits in the form of cash that were earned on certain research and development expenses incurred primarily outside of the U.S. In the years ending December 31, 2023 and 2022, the Company received refundable research and development credits from foreign tax authorities of approximately $2,687,000 and $90,000, respectively, that were recorded in other income (expense), net. No future conditions impact the recognition of these tax credits.

At December 31, 2023 and 2022, the Company had federal net operating loss carryforwards of approximately $218,633,000 and $197,846,000 respectively, of which federal carryforwards will expire in varying amounts beginning in 2029. Of the federal net operating loss carryforwards of $218,633,000, approximately $162,282,000 are from periods after 2017 and have no expiration date. Net operating loss carryforwards starting in 2021 are limited to 80% of taxable income. At December 31, 2023 and 2022, the Company had State net operating loss carryforwards of approximately $208,042,000 and $188,273,000, respectively. Utilization of net operating losses may be subject to substantial annual limitations due to the “change in ownership” provisions of the Internal Revenue Code, and similar state provisions. The annual limitations may result in the expiration of net operating losses before utilization. The Company has not yet conducted a study to determine if any such changes have occurred that could limit the Company’s ability to use the net operating losses and tax credit carryforwards. The Company also had research and development tax credit carryforwards at December 31, 2023 and 2022 of approximately $10,046,000 and $9,376,000, respectively, of which will begin to expire in varying amounts beginning in 2032.

Significant components of the Company’s net deferred tax asset are as follows:

	December 31,
	2023			2022
U.S. and state net operating loss carryforwards	$	59,092,710		$	53,438,141
Foreign net operating loss carryforwards		11,558,247			7,267,176
Tax credit carryforward		9,825,596			9,132,973
Stock-based compensation		5,819,822			8,661,477
Capitalized research and development		6,367,722			3,925,743
Accrued expenses		897,354			503,124
Other temporary differences		1,376,351			1,202,364
Subtotal		94,937,802			84,130,998
Valuation allowance		(94,937,802	)		(84,130,998	)
Net deferred tax asset	$	—		$	—

The Tax Cuts and Jobs Act (“TCJA”) requires taxpayers to capitalize and amortize research and development (“R&D”) expenditures under section 174 for tax years beginning after December 31, 2021. This rule became effective for us during 2022 and resulted in capitalized R&D costs of approximately $23,557,000 and $14,523,000 as of December 31, 2023 and December 31, 2022, respectively. We will amortize these costs for tax purposes over 5 years for R&D performed in the U.S. and over 15 years for R&D performed outside the U.S.

The Company has maintained a full valuation allowance against its deferred tax assets in all periods presented. A valuation allowance is required to be recorded when it is not more likely than not that some portion or all the net deferred tax assets will be realized. Since the Company cannot determine that it is more likely than not that it will generate taxable income, and thereby realize the net deferred tax assets, a full valuation allowance has been provided. The valuation allowance increased by approximately $10,807,000 and $8,633,000 in 2023 and 2022, respectively, due to increased net operating loss carryforwards and capitalization of R&D expenditures as required by changes to the tax laws from the TCJA as described above. The Company has no uncertain tax positions at December 31, 2023 and 2022 that would affect its effective tax rate. Since the Company is in a loss carryforward position, the Company is generally subject to U.S. federal and state income tax examinations by tax authorities for all years for which a loss carryforward is available.

Income tax benefits computed using the federal statutory income tax rate differs from the Company’s effective tax rate primarily due to the following:

	December 31,
	2023			2022
Tax provision at statutory rate		21.00	%		21.00	%
State income tax, net of federal benefit		5.94	%		5.53	%
Permanent differences		(0.28	)%		(1.72	)%
Foreign expected tax		4.46	%		4.08	%
Tax credits		2.46	%		1.87	%
Foreign income tax rate change		7.42	%		—	%
Other		(11.09	)%		(5.99	)%
Change in valuation reserve		(29.91	)%		(24.77	)%
Total		—	%		—	%

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PREFERRED STOCK

12 Months Ended

Dec. 31, 2023

Preferred Stock, Number of Shares, Par Value and Other Disclosure [Abstract]

PREFERRED STOCK

12.PREFERRED STOCK

The Company has authorized 10,000,000 shares of preferred stock, $0.0001 par value per share, of which 0 shares were issued and outstanding as of December 31, 2023 and December 31, 2022, respectively.

On October 12, 2022, the Board of Directors (the “Board”), declared a dividend of 0.008 of a share of Series A Preferred Stock (“Series A Preferred Stock”), for each outstanding share of Common Stock to stockholders of record at 5:00pm Eastern Time on October 22, 2022. The Certificate of Designation of Series A Preferred Stock was filed with the Delaware Secretary of State and became effective on October 12, 2022. The dividend was based on the number of outstanding shares of common stock prior to the Reverse Stock Split. This resulted in 1,002,247.048 shares of preferred stock being issued. The outstanding shares of Series A Preferred Stock were entitled to vote together with the outstanding shares of common stock as a single class exclusively with respect to any proposal to adopt an amendment to the Company’s Amended and Restated Certificate of Incorporation, as amended (the “Certificate of Incorporation”), to reclassify the outstanding shares of Common Stock into a smaller number of shares of Common Stock at a ratio specified in or determined in accordance with the terms of such amendment, as well as any proposal to adjourn any meeting of stockholders called for the purpose of voting on the Reverse Stock Split Proposal (the “Adjournment Proposal”).

The Company held a special meeting of stockholders on December 20, 2022 (the “Special Meeting”) for the purpose of voting on the Reverse Stock Split and the Adjournment Proposal. All shares of Series A Preferred Stock that were not present in person or by proxy at the Special Meeting, which totaled 500,894.04 shares, were automatically redeemed by the Company immediately prior to the opening of the polls at Special Meeting (the “Initial Redemption”). All shares that were not redeemed pursuant to the Initial Redemption would be redeemed if ordered by the Board or automatically upon the effectiveness of the amendment to the Certificate of Incorporation implementing the Reverse Stock Split (the "Subsequent Redemption" and together with the Initial Redemption, the "Redemption"). Each share of Series A Preferred Stock is entitled to receive $0.001 in cash for each 10 whole shares of Series A Preferred Stock immediately prior to the Redemption.

At the Special Meeting, both the Reverse Stock Split and Adjournment Proposal were approved.

Upon issuance of the Series A Preferred Stock, the Company was not solely in control of the Redemption of the shares of Series A Preferred Stock since the holders had the option of deciding whether to attend or return a proxy card for the Special Meeting, which determined whether a given holder’s shares of Series A Preferred Stock were redeemed in the Initial Redemption. Since the Redemption of the Series A Preferred Stock was not solely in the control of the Company, the shares of Series A Preferred Stock are classified within mezzanine equity. The shares of Series A Preferred Stock were initially recorded at redemption value, which approximated fair value.

After the Special Meeting upon approval of the Reverse Stock Split, the remaining 501,353.008 shares outstanding of Series A Preferred Stock were considered mandatorily redeemable and reclassified to a current liability. As of December 31, 2022, the fair value of the Series A Preferred Stock were included in accrued expenses. The Series A Preferred Stock were redeemed on February 14, 2023, upon the effectiveness of the amendment to the Certificate of Incorporation implementing the Reverse Stock Split pursuant to the terms of the Certificate of Designation of the Series A Preferred Stock.

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COMMON STOCK

12 Months Ended

Dec. 31, 2023

Equity [Abstract]

COMMON STOCK

13.COMMON STOCK

On February 14, 2023, the Company completed a 1-for-30 reverse stock split of its outstanding common stock. The Reverse Stock Split did not change the number of authorized shares of common stock or par value. All references in these consolidated financial statements to shares, share prices, exercise prices, and other per share information in all periods have been adjusted, on a retroactive basis, to reflect the Reverse Stock Split.

The Company has authorized 300,000,000 shares of common stock, $0.0001 par value per share, of which 4,423,683 and 4,171,297 shares were issued and outstanding as of December 31, 2023 and December 31, 2022, respectively.

On May 31, 2023, the Company entered into the Open Market Sale Agreement with Jefferies pursuant to which Jefferies is serving as the Company’s sales agent to sell shares of the Company’s common stock through an “at-the-market offering.” As of June 13, 2023, the Company was authorized to offer and sell up to $16,800,000 of its common stock pursuant to the Open Market Sale Agreement. During the year ended December 31, 2023, the Company sold 14,106 shares of its common stock for which the Company received gross proceeds of approximately $114,000. The Company incurred total issuance costs of approximately $295,000. These costs will be deferred to prepaid expenses and other current assets and will offset proceeds as common stock is issued. As of December 31, 2023, approximately $5,200 has been recorded to additional paid-in capital to offset proceeds. See Note 17 for additional information on shares sold subsequent to December 31, 2023. During the year ended December 31, 2022, the Company did not sell any shares of its common stock under the Open Market Sale Agreement with Jefferies.

During the years ended December 31, 2023 and 2022, the Company issued 43,836 and 0 shares of common stock upon the exercise of stock options to purchase common stock and the Company received proceeds of $129,740 and $0 from those exercises, respectively.

During the years ended December 31, 2023 and 2022, the Company issued 0 and 1,666 shares of common stock upon the vesting of restricted stock units pursuant to a professional services agreement with an investor relations service provider, respectively.

During the years ended December 31, 2023 and 2022, the Company issued 194,444 and 0 shares of common stock in a conversion pursuant to the K2HV Amended Loan and Security Agreement, respectively.

No warrants were exercised during the years ended December 31, 2023 and 2022.

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STOCK BASED COMPENSATION AWARDS

12 Months Ended

Dec. 31, 2023

Share-Based Payment Arrangement [Abstract]

STOCK-BASED COMPENSATION AWARDS

14. STOCK-BASED COMPENSATION AWARDS

In April 2014, the Company adopted the Corbus Pharmaceuticals Holdings, Inc. 2014 Equity Incentive Plan (the “2014 Plan”). Pursuant to the 2014 Plan, the Company’s Board may grant incentive and nonqualified stock options and restricted stock to employees, officers, directors, consultants, and advisors.

Pursuant to the terms of an annual evergreen provision in the 2014 Plan, the number of shares of common stock available for issuance under the 2014 Plan shall automatically increase on January 1 of each year by at least seven percent (7%) of the total number of shares of common stock outstanding on December 31st of the preceding calendar year, or, pursuant to the terms of the 2014 Plan, in any year, the Board may determine that such increase will provide for a lesser number of shares.

On January 1, 2023, pursuant to an annual evergreen provision contained in the 2014 Plan, the number of shares reserved for future grants was increased by 291,991 shares, which was seven percent (7%) of the outstanding shares of common stock on December 31, 2022. As of January 1, 2023 there was a total of 1,436,558 shares reserved for issuance under the 2014 Plan and there were 741,870 shares available for future grants. Stock options issued under the 2014 Plan generally vest over 4 years from the date of grant in multiple tranches and are exercisable for up to 10 years from the date of issuance. Restricted stock units issued under the 2014 Plan generally have equal annual vesting over a 4 year period.

In accordance with the terms of the 2014 Plan, effective as of January 1, 2024, the number of shares of common stock available for issuance under the 2014 Plan increased by 309,658 shares, such amount being seven percent (7%) of the outstanding shares of common stock on December 31, 2023 (see Note 17). As of January 1, 2024, the 2014 Plan had a total reserve of 1,746,215 shares and there were 899,015 shares available for future grants.

Stock-based Compensation

In connection with all stock-based compensation awards, total non-cash, stock-based compensation expense, net of estimated forfeitures, recognized in the consolidated statements of operations and comprehensive loss for the years ended December 31, 2023 and 2022 was as follows:

	Year ended December 31,
	2023	2022
Research and development expenses	$377,734	$577,472
General and administrative expenses	3,092,420	5,142,165
Total stock-based compensation	$3,470,154	$5,719,637

The total stock-based compensation expense recognized by award type was as follows:

	Year ended December 31,
	2023	2022
Stock options	$3,456,316	$5,719,637
Restricted stock units	13,838	-
Total stock-based compensation	$3,470,154	$5,719,637

Stock Options

The fair value of each option award is estimated on the date of grant using the Black-Scholes option pricing model that uses the assumptions noted in the following table, except for the expected term for non-employees as noted in the following paragraph. The Company uses historical data, as well as subsequent events occurring prior to the issuance of the financial statements, to estimate option exercises and employee terminations in order to estimate its forfeiture rate. The expected term of employee options granted under the 2014 Plan, all of which qualify as “plain vanilla” per SEC Staff Accounting Bulletin 107, is determined based on the simplified method due to the Company’s limited operating history and is 6.25 years based on the average between the vesting period and the contractual life of the option. For non-employee options, the Company has elected to utilize the contractual term as the expected term. The risk-free rate is based on the yield of a U.S. Treasury security with a term consistent with that used to value the option.

The weighted average assumptions used principally in determining the fair value of stock options granted were as follows:

	Year ended December 31,
	2023			2022
Risk free interest rate		3.82	%		1.99	%
Expected dividend yield		0	%		0	%
Expected term in years (employee options)		6.25			6.25
Expected volatility		101.47	%		98.08	%
Estimated forfeiture rate		15.63	%		12.43	%

A summary of stock option activity for years ended December 31, 2023 and 2022 is presented below:

Stock Options	Shares	Weighted Average Exercise Price		Weighted Average Remaining Contractual Term in Years	Intrinsic Value
Outstanding at December 31, 2021	510,870	$	121.90
Granted	185,169		12.90
Exercised	—		-
Forfeited or canceled	(56,019)		107.13
Expired	(22,024)		166.53
Outstanding at December 31, 2022	617,996	$	88.99
Granted	291,151		5.15
Exercised	(43,836)		0.85
Forfeited or canceled	(155,046)		68.92
Expired	(1,503)		146.78
Outstanding at December 31, 2023	708,762	$	63.96	6.79	$	20,216,363
Exercisable at December 31, 2023	407,882	$	100.13	5.37	$	6,243,603
Vested and expected to vest at December 31, 2023	663,007	$	67.78	6.64	$	17,879,915

The weighted average grant-date fair value of stock options granted during the years ended December 31, 2023 and 2022 was $4.20 and $10.20 per share, respectively. The aggregate intrinsic value of options exercised during the years ended December 31, 2023 and 2022 was $92,689 and $0, respectively. As of December 31, 2023, there was approximately $2,769,000 of total unrecognized compensation expense, related to non-vested stock-based compensation arrangements. The unrecognized compensation expense is estimated to be recognized over a period of 1.49 years at December 31, 2023.

As summary of non-vested stock options for the years ended December 31, 2023 and 2022 is presented below:

Stock Options	Shares			Weighted Average Fair Value
Non-vested December 31, 2021		210,503		$	67.80
Granted		185,169			10.19
Vested		(107,269	)		67.54
Forfeited		(29,019	)		43.06
Non-vested at December 31, 2022		259,384		$	29.59
Granted		248,777			4.22
Vested		(116,336	)		30.49
Forfeited		(90,945	)		17.42
Non-vested at December 31, 2023		300,880		$	11.96

Restricted Stock Units

A RSU represents the right to receive one share of our common stock upon vesting of the RSU. The fair value of each RSU is based on the closing price of our common stock on the date of grant. We grant RSUs with service conditions that vest in four equal annual installments provided that the employee remains employed with us on the vesting date.

A summary of RSU activity for the years ended December 31, 2023 and 2022 is presented below:

RSUs	Number of Shares Underlying RSUs	Weighted  Average Grant Date Fair Value
Unvested at December 31, 2022	—	$—
Granted	31,076	4.84
Forfeited	(13,165)	4.44
Vested	—	—
Unvested at December 31, 2023	17,911	$5.14

As of December 31, 2023, there was $62,000 of unrecognized compensation costs related to unvested RSUs, which are expected to be recognized over a weighted average period of 3.22 years.

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WARRANTS

12 Months Ended

Dec. 31, 2023

Warrants

WARRANTS

15. WARRANTS

No warrants were exercised during the years ended December 31, 2023 and 2022.

At December 31, 2023, there were warrants outstanding to purchase 50,207 shares of common stock with a weighted average exercise price of $283.81 and a weighted average remaining life of 1.60 years.

On January 26, 2018, the Company entered into the Cystic Fibrosis Program Related Investment Agreement (“Investment Agreement”) the Cystic Fibrosis Foundation ("CFF"), a non-profit drug discovery and development corporation, pursuant to which the Company received a development award. Pursuant to the terms of the Investment Agreement, the Company issued a warrant to CFF to purchase an aggregate of 33,334 shares of the Company’s common stock (the “CFF Warrant”) at an exercise price of $396.00 per share. The CFF Warrant is currently exercisable for 33,334 shares of the Company’s common stock and expires on January 26, 2025. Any shares of the Company’s common stock issued upon exercise of the CFF Warrant will be unregistered and subject to a one-year lock-up. The CFF Warrant is classified as equity as it meets all the conditions under U.S. GAAP for equity classification. In accordance with U.S. GAAP, the Company has calculated the fair value of the warrant for initial measurement and will reassess whether equity classification for the warrant is appropriate upon any changes to the warrants or capital structure, at each balance sheet date. The weighted average assumptions used in determining the $6,215,225 fair value of the CFF Warrant were as follows:

Risk free interest rate	2.60%
Expected dividend yield	0%
Expected term in years	7.00
Expected volatility	83.5%

On July 28, 2020, the Company entered into the Loan and Security Agreement with K2HV pursuant to which K2HV may provide the Company with term loans in an aggregate principal amount of up to $50,000,000. On July 28, 2020, in connection with the funding of $20,000,000, the Company issued a warrant exercisable for 2,873 shares of the Company’s common stock at an exercise price of $208.80 per share. The K2 warrant is immediately exercisable for 2,873 shares and expires on July 28, 2030. Any shares of the Company’s common stock issued upon exercise of the K2 Warrant are permitted to be settled in unregistered shares. The K2 Warrant is classified as equity as it meets all the conditions under U.S. GAAP for equity classification. In accordance with U.S. GAAP, the Company has calculated the fair value of the warrant for initial measurement and will reassess whether equity classification for the warrant is appropriate upon any changes to the warrants or capital structure, at each balance sheet date. The weighted average assumptions used in determining the $472,409 fair value of the K2 Warrant were as follows:

Risk free interest rate	0.60%
Expected dividend yield	0%
Expected term in years	10.00
Expected volatility	80.0%

On October 16, 2020, the Company entered into a professional services agreement with an investor relations service provider. Pursuant to the agreement, the Company issued warrants exercisable for a total of 14,000 shares of the Company’s common stock (the “Warrants”) at an exercise price of $32.10 per share. The Warrants became fully vested on October 19, 2021 and expire on November 3, 2025. Any shares of the Company’s common stock issued upon exercise of the Warrants are permitted to be settled in unregistered shares. The Warrants are classified as equity as they meet all the conditions under U.S. GAAP for equity classification. In accordance with U.S. GAAP, the Company has calculated the fair value of the warrants for initial measurement and will reassess whether classification for the warrant is appropriate upon any changes to the warrants or capital structure, at each balance sheet date. The weighted average assumptions used in determining the $334,740 fair value of the Warrants were as follows:

Risk free interest rate	0.90%
Expected dividend yield	0%
Expected term in years	5.00
Expected volatility	100.6%

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DERIVATIVE LIABILITY

12 Months Ended

Dec. 31, 2023

Derivative Instruments and Hedging Activities Disclosure [Abstract]

DERIVATIVE LIABILITY

16. DERIVATIVE LIABILITY

On July 28, 2020, the Company, with its subsidiary, Corbus Pharmaceuticals, Inc., as borrower, entered into the secured Loan and Security Agreement with K2HV and received $20,000,000 upon signing. The Company has determined that a prepayment feature and default feature needed to be separately valued and marked to market each reporting period after assessing the agreement under ASC 815.

The value of these features is determined each reporting period by taking the present value of net cash flows with and without the prepayment features. The significant assumption used to determine the fair value of the debt without any features is the discount rate which has been estimated by using published market rates of triple CCC rated public companies. All other inputs are taken from the Loan and Security Agreement. The additional significant assumptions used when valuing the prepayment feature is the probability of a change of control event. The Company has determined the probability from December 31, 2022 to December 31, 2023 has decreased from 35% to 10%. The additional significant assumption used when valuing the default feature is the probability of defaulting on the repayment of loan. The Company has determined the probability from December 31, 2022 to December 31, 2023 has increased from 40% to 55%. The value of these features was determined to be approximately $36,868 at December 31, 2022 and $39,450 at December 31, 2023 which resulted in $2,582 of other expense in 2023. The Company considers the fair value of the derivative liability to be Level 3 under the three-tier fair value hierarchy.

A roll forward of the fair value of the derivative liability for the year ended December 31, 2023 is presented below.

	December 31, 2023
Beginning balance, December 31, 2022	$36,868
Change in fair value of derivative liabilities	2,582
Ending balance, December 31, 2023	$39,450

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SUBSEQUENT EVENTS

12 Months Ended

Dec. 31, 2023

Subsequent Events [Abstract]

SUBSEQUENT EVENTS

17. SUBSEQUENT EVENTS

Evergreen Provision

Pursuant to the terms of an annual evergreen provision in the 2014 Plan, the number of shares of common stock available for issuance under the 2014 Plan shall automatically increase on January 1 of each year by at least seven percent (7%) of the total number of shares of common stock outstanding on December 31st of the preceding calendar year, or, pursuant to the terms of the 2014 Plan, in any year, the Board may determine that such increase will provide for a lesser number of shares. In accordance with the terms of the 2014 Plan, effective as of January 1, 2024, the number of shares of common stock available for issuance under the 2014 Plan increased by 309,658 shares, such amount being seven percent (7%) of the outstanding shares of common stock on December 31, 2023. As of January 1, 2024, the 2014 Plan had a total reserve of 1,746,215 shares and there were 899,015 shares available for future grants.

Continued Listing on The Nasdaq Capital Market

On January 8, 2024, the Staff notified the Company that it granted an extension until May 8, 2024 to regain compliance, conditioned upon achievement of certain milestones included in the plan of compliance previously submitted to the Staff, including a plan to raise additional capital.

On February 8, 2024, the Company received a notice from Nasdaq that the Company had regained compliance with the alternative continued listing standard as the Company’s market value of listed securities has been $35,000,000 or greater over the last 10 consecutive business days and that the matter was closed.

Open Market Sale Agreement

On May 31, 2023, the Company entered into the Open Market Sale Agreement with Jefferies pursuant to which Jefferies is serving as the Company’s sales agent to sell shares of the Company’s common stock through an “at-the-market offering.” As of January 29, 2024, the Company was authorized to offer and sell up to $75,000,000 of its common stock pursuant to the Open Market Sale Agreement, an increase from the previous prospectus filed on June 13, 2023 for $16,800,000. From May 31, 2023, through the date hereof, the Company has sold approximately $21,237,000 in aggregate gross proceeds of shares of its common stock under the Open Market Sale Agreement.

On January 30, 2024, the Company delivered written notice to Jefferies that it was suspending and terminating the prospectus supplement dated January 29, 2024, related to the Company’s Common Stock issuable pursuant to the Sale Agreement, pursuant to the terms of the Sale Agreement. The Company will not make any sales of its securities pursuant to the Sale Agreement, unless and until a new shelf registration statement and prospectus supplement is filed. Other than the termination of the ATM Prospectus Supplement, the Sale Agreement remains in full force and effect.

Public Offering

On January 31, 2024, the Company entered into an underwriting agreement with Jefferies, as representative of the several underwriters, relating to an underwritten public offering of 4,325,000 shares of the Company’s common stock, par value $0.0001, at a price to the public of $19.00 per share. The Underwriters were also granted a 30-day option to purchase up to an additional 648,750 shares of Common Stock at the public offering price. On January 31, 2024, the Representative gave notice to the Company of the Underwriters’ election to exercise the option to purchase additional shares, in full. On February 2, 2024, the Company completed the public offering raising gross proceed of approximately $94,500,000 and net proceeds of $88,500,000 after deducting underwriting discounts and commissions and other estimated offering expenses payable by the Company.

K2 HealthVentures LLC Debt Conversion

On March 6, 2024, K2HV converted $1,125,000 of the outstanding loan balance into 142,857 shares of the Company's stock at a conversion price of $7.875 per share.

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SIGNIFICANT ACCOUNTING POLICIES (Policies)

12 Months Ended

Dec. 31, 2023

Accounting Policies [Abstract]

Basis of Presentation

Basis of Presentation

The accompanying financial statements have been prepared in accordance with U.S. GAAP.

Reverse Stock Split Policy

Reverse Stock Split

On February 14, 2023, the Company completed a 1-for-30 reverse stock split of its outstanding common stock (the “Reverse Stock Split”). The Reverse Stock Split did not change the number of authorized shares of common stock or par value. All references in these consolidated financial statements to shares, share prices, exercise prices, and other per share information in all periods have been adjusted, on a retroactive basis, to reflect the Reverse Stock Split (see Note 13).

Consolidation

Consolidation

The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All significant intercompany transactions and accounts have been eliminated in consolidation.

Use of Estimates

Use of Estimates

The process of preparing financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates and changes in estimates may occur. The most significant estimates are related to stock-based compensation expense (See Note 14), the accrual of research, product development and clinical obligations (see Note 10), and the valuation of warrants (see Note 9 and Note 15).

Cash, Cash Equivalents, and Restricted Cash

Cash, Cash Equivalents, and Restricted Cash

The Company considers only those investments which are highly liquid, readily convertible to cash, and that mature within 90 days from the date of purchase to be cash equivalents. At December 31, 2023 and 2022, cash equivalents were comprised of money market funds, commercial paper, and other debt securities with maturities less than 90 days from the date of purchase.

Restricted cash as of December 31, 2023 included security for a stand-by letter of credit issued in favor of a landlord for $669,900 of which $192,475 was classified in current assets and $477,425 was classified in noncurrent assets as of December 31, 2023.

Cash, cash equivalents, and restricted cash consist of the following:

	December 31, 2023	December 31, 2022
Cash	$4,028,733	$3,805,156
Cash equivalents	9,694,948	13,197,559
Cash and cash equivalents	13,723,681	17,002,715
Restricted cash, current	192,475	192,475
Restricted cash, noncurrent	477,425	477,425
Restricted cash	669,900	669,900
Total cash, cash equivalents, and restricted cash shown in the statement of cash    flows	$14,393,581	$17,672,615

As of December 31, 2023, all of the Company’s cash and cash equivalents was held in the U.S., except for approximately $3,772,000 of cash which was held in its subsidiaries in the United Kingdom and Australia. As of December 31, 2022, all of the Company’s cash and cash equivalents was held in the U.S., except for approximately $2,805,000 of cash which was held in its subsidiaries in the United Kingdom and Australia.

Investments

Investments

Investments consist of debt securities with maturities greater than 90 days at their acquisition date. The Company classifies any of its investments with maturities beyond one year as current, based on their highly liquid nature and because such investments represent the investment of cash that is available for current operations.

The Company classifies all of its marketable debt securities as available-for-sale securities. The Company’s marketable debt securities are measured and reported at fair value using quoted prices in active markets for similar securities. Unrealized gains and losses on available-for-sale debt securities that are not related to credit losses are reported as accumulated other comprehensive gain or loss, which is a separate component of stockholders’ equity. The cost of debt securities sold is determined on a specific identification basis, and realized gains and losses are included in other income (expense), net in the consolidated statements of operations and comprehensive loss.

The Company evaluates its marketable debt securities with unrealized losses for impairment. When assessing marketable debt securities for potential impairment, the Company considers available evidence, including the extent to which fair value is less than cost, whether an allowance for credit loss is required, and adverse factors that could affect the value of the securities. An impairment has occurred if the Company does not expect to recover the entire amortized cost basis of the marketable debt security. If the Company does not intend to sell the impaired debt security and it is not more likely than not required to sell the debt security before the recovery of its amortized cost basis, the amount of the impairment related to credit losses is recognized in an allowance for credit losses with an offsetting entry to Other income (expense), net. The remaining portion of the impairment related to other factors is recognized in Other comprehensive loss. Realized gains and losses for debt securities are included in Other income (expense), net. No such adjustments were necessary during the periods presented.

Concentrations of Credit Risk

Concentrations of Credit Risk

The Company has no significant off-balance sheet concentration of credit risk such as foreign exchange contracts, option contracts or other hedging arrangements. The Company may, from time to time, have cash in its U.S. banks in excess of Federal Deposit Insurance Corporation insurance limits and in its foreign banks in excess of their local insurance limits. However, the Company believes the risk of loss is minimal as these banks are large financial institutions.

Financial Instruments

Financial Instruments

The carrying values of the notes payable and debt approximate their fair value due to the fact that they are at market terms.

Fair Value Measurements

Fair Value Measurements

The valuation of the Company’s debt and embedded derivatives are determined primarily by an income approach that considers the present value of net cash flows of the debt with and without prepayment and default features. These embedded debt features, which are determined to be classified as derivative liabilities are marked-to-market each reporting period, with a corresponding non-cash gain or loss charged to the current period. As such, fair value is a market-based measurement that should be determined based on assumptions that market participants would use in pricing an asset or liability. As a basis for considering such assumptions, there exists a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value as follows:

Level 1 – Unadjusted quoted prices in active markets for identical assets or liabilities that the Company has the ability to access as of the measurement date

Level 2 – Inputs other than quoted prices included within Level 1 that are directly observable for the asset or liability or indirectly observable through corroboration with observable market data

Level 3 – Unobservable inputs for the asset or liability only used when there is little, if any, market activity for the asset or liability at the measurement date

The Company’s investments, debt, and its derivative liabilities are carried at fair value determined according to the fair value hierarchy described above. The carrying values of the Company’s prepaid expenses and other current assets and accrued expenses approximate their fair values due to the short-term nature of these assets and liabilities.

To determine the fair value of our embedded derivatives, management evaluates assumptions regarding the probability of certain future events. Other factors used to determine fair value include the discount rate, risk-free interest rate, and derivative term. The fair value recorded for the derivative liability varies from period to period. This variability may result in the actual derivative liability for a period either above or below the estimates recorded on our consolidated financial statements, resulting in fluctuations in other income (expense) because of the corresponding non-cash gain or loss recorded.

Property and Equipment

Property and Equipment

The estimated life for the Company’s property and equipment is as follows: three years for computer hardware and software and three to five years for office furniture and equipment. The Company’s leasehold improvements and assets under capital lease are amortized over the shorter of their useful lives or the respective leases. See Note 7 for details of property and equipment and Note 8 for operating and capital lease commitments.

Leases

Leases

The Company determines if an arrangement is a lease at inception. Operating leases are included in operating lease right-of-use (“ROU”) assets and operating lease liabilities current and noncurrent in the Company’s consolidated balance sheets.

ROU assets represent the Company’s right to use an underlying asset for the lease term and lease liabilities represent its obligation to make lease payments arising from the lease. ROU assets and liabilities are recognized at commencement date based on the present value of lease payments over the lease term. As the Company’s leases do not provide an implicit rate, the Company uses an incremental borrowing rate based on the information available at commencement date in determining the present value of lease payments. This is the rate the Company would have to pay if borrowing on a collateralized basis over a similar term to each lease. The ROU asset also includes any lease payments made and excludes lease incentives. Lease expense for lease payments is recognized on a straight-line basis over the lease term.

The Company has subleased a portion of its leased facility under an agreement considered to be an operating lease according to U.S. GAAP. The Company has not been legally released from its primary obligations under the original lease and therefore it continues to account for the original lease as it did before commencement of the sublease. The Company will record both fixed and variable payments received from the sublessee in its statement of operations on a straight-line basis as an offset to rent expense.

Accruals for Research and Development Expenses and Clinical Trials

Accruals for Research and Development Expenses and Clinical Trials

As part of the process of preparing its financial statements, the Company is required to estimate its expenses resulting from its obligations under contracts with vendors, clinical research organizations and consultants and under clinical site agreements in connection with conducting clinical trials. The financial terms of these contracts are subject to negotiations, which vary from contract to contract and may result in payment terms that do not match the periods over which materials or services are provided under such contracts. The Company’s objective is to reflect the appropriate expenses in its financial statements by matching those expenses with the period in which services are performed and efforts are expended. The Company accounts for these expenses according to the timing of various aspects of the expenses. The Company determines accrual estimates by taking into account discussions with applicable internal personnel and outside service providers as to the progress of clinical trials, or the services completed. During the course of a clinical trial, the Company adjusts its clinical expense recognition if actual results differ from its estimates. The Company makes estimates of its accrued expenses as of each balance sheet date based on the facts and circumstances known to it at that time. The Company’s clinical trial accruals are dependent upon the timely and accurate reporting of contract research organizations ("CROs") and other third-party vendors. Although the Company does not expect its estimates to be materially different from amounts actually incurred, its understanding of the status and timing of services performed relative to the actual status and timing of services performed may vary and may result in it reporting amounts that are too high or too low for any particular period. For the years ended December 31, 2023 and 2022, there were no material adjustments to the Company’s prior period estimates of accrued expenses for clinical trials.

Revenue Recognition

Revenue Recognition

We recognize revenue in accordance with Accounting Standards Codification (“ASC”) 606, Revenue from Contracts with Customers (“ASC 606”), which applies to all contracts with customers, except for contracts that are within the scope of other standards, such as leases, insurance, collaboration arrangements, and financial instruments. Under ASC 606, we recognize revenue when our customer obtains control of promised goods or services, in an amount that reflects the consideration which we expect to receive in exchange for those goods or services. To determine revenue recognition for arrangements that we determine are within the scope of ASC 606, we perform the following five steps: (i) identify the contract(s) with a customer; (ii) identify the performance obligations in the contract; (iii) determine the transaction price; (iv) allocate the transaction price to the performance obligations in the contract; and (v) recognize revenue when (or as) we satisfy a performance obligation. At contract inception, once the contract is determined to be within the scope of ASC 606, we assess the goods or services promised within each contract and determine those that are performance obligations and assess whether each promised good or service is distinct. We then recognize as revenue the amount of the transaction price that is allocated to the respective performance obligation when (or as) the performance obligation is satisfied. No revenue was recognized in the years ending December 31, 2023 and December 31, 2022.

Research and Development Expenses

Research and Development Expenses

Costs incurred for research and development are expensed as incurred.

Nonrefundable advance payments for goods or services that have the characteristics that will be used or rendered for future research and development activities pursuant to executory contractual arrangements with third-party research organizations are deferred and recognized as an expense as the related goods are delivered or the related services are performed.

Asset Acquisition

Asset Acquisitions

We account for asset acquisitions under the accounting standards for business combinations and research and development, as applicable. In-process research and development acquired in an asset acquisition is expensed immediately unless there is an alternative future use. Subsequent payments made for the achievement of milestones are evaluated to determine whether they have an alternative future use or should be expensed.

Segment Information

Segment Information

Operating segments are identified as components of an enterprise about which separate discrete financial information is available for evaluation by the chief operating decision maker, or decision-making group, in making decisions regarding resource allocation and assessing performance. To date, the Company has viewed its operations and manages its business as principally one operating segment, which is developing and commercializing therapeutics for cancer and obesity. As of December 31, 2023, all of the Company’s assets were located in the U.S., except for approximately $3,772,000 of cash and cash equivalents and $1,192,000 of prepaid expenses and other assets which were held outside of the U.S., principally in its subsidiary in the United Kingdom. As of December 31, 2022, all of the Company’s assets were located in the U.S., except for approximately $2,805,000 of cash and cash equivalents and $136,000 of prepaid expenses and other assets which were held outside of the U.S., principally in its subsidiary in the United Kingdom.

Income Taxes

Income Taxes

For federal and state income taxes, deferred tax assets and liabilities are recognized based upon temporary differences between the financial statement and the tax basis of assets and liabilities. Deferred income taxes are based upon prescribed rates and enacted laws applicable to periods in which differences are expected to reverse. A valuation allowance is recorded to reduce a net deferred tax benefit when it is not more likely than not that the tax benefit from the deferred tax assets will be realized. Accordingly, given the cumulative losses since inception, the Company has provided a valuation allowance equal to 100% of the deferred tax assets in order to eliminate the deferred tax assets amounts.

Tax positions taken or expected to be taken in the course of preparing the Company’s tax returns are required to be evaluated to determine whether the tax positions are “more-likely-than-not” of being sustained by the applicable tax authority. Tax positions not deemed to meet a more-likely-than-not threshold, as well as accrued interest and penalties, if any, would be recorded as a tax expense in the current year. There were no uncertain tax positions that require accrual or disclosure to the financial statements as of December 31, 2023 or 2022.

Impairment of Long-lived Assets

Impairment of Long-lived Assets

The Company continually monitors events and changes in circumstances that could indicate that carrying amounts of long-lived assets may not be recoverable. An impairment loss is recognized when expected undiscounted cash flows of an asset are less than an asset’s carrying value. Accordingly, when indicators of impairment are present, the Company evaluates the carrying value of such assets in relation to the operating performance and future undiscounted cash flows of the underlying assets. An impairment loss equal to the excess of the fair value of the asset over its carrying amount, is recorded when it is determined that the carrying value of the asset may not be recoverable. The Company notes no impairment charges were taken in 2023 or 2022. See Note 8 for more details on sublease agreement.

Stock-based Compensation

Stock-based Compensation

The Company recognizes compensation costs resulting from the issuance of stock-based awards, including stock options and restricted stock units (“RSUs”), to employees, non-employees, and directors as an expense in the statements of operations and comprehensive loss over the service period based on a measurement of fair value for each stock-based award. The fair value of each stock option grant is estimated as of the date of grant using the Black-Scholes option-pricing model. The fair value of restricted stock units is the quoted closing market price per share on the grant date. Forfeitures are estimated on the grant date based on historical experience and management’s expectations of future forfeitures. To the extent actual forfeitures differ from the estimates, the difference is recorded as a cumulative adjustment in the period in which the estimates are revised. The fair value of each grant is amortized as compensation cost on a straight-line basis over the requisite service period of the awards, which is generally the vesting period.

Foreign Currency

Foreign Currency

Transaction gains and losses arising from currency exchange rate fluctuations on transactions denominated in a currency other than the U.S. Dollar functional currency are recorded in Other income (expense), net in the Company’s statements of operations and comprehensive loss. Such transaction gains and losses may be realized or unrealized depending upon whether the transaction settled during the period or remains outstanding at the balance sheet date. The functional currency of the Company's foreign subsidiaries is the U.S. Dollar.

Net Loss Per Common Share

Net Loss Per Common Share

Basic and diluted net loss per share of the Company’s common stock has been computed by dividing net loss by the weighted average number of shares outstanding during the period. For years in which there is a net loss, options and warrants are anti-dilutive and therefore excluded from diluted loss per share calculations. The following table sets forth the computation of basic and diluted earnings per share for the years ended December 31, 2023 and 2022:

	Year Ended December 31,
	2023			2022
Net loss	$	(44,603,316	)	$	(42,346,903	)
Weighted average number of common shares-basic		4,327,568			4,170,675
Net loss per share of common stock-basic	$	(10.31	)	$	(10.15	)

Stock options and warrants that have not been exercised and unvested restricted stock units (See Notes 14 and 15) have been excluded from the diluted calculation as all periods presented have a net loss and the impact of these securities would be anti-dilutive.

Recently Adopted Accounting Pronouncements

Recently Adopted Accounting Pronouncements

In June 2016, the FASB issued ASU 2016-13, Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments (“ASU 2016-13”), which requires the measurement and recognition of expected credit losses for financial assets held at amortized cost. ASU 2016-13 replaces the existing incurred loss impairment model with an expected loss model. It also eliminates the concept of other-than-temporary impairment and requires credit losses related to available-for-sale debt securities to be recorded through an allowance for credit losses rather than as a reduction in the amortized cost basis of the securities. These changes may result in earlier recognition of credit losses. In November 2018, the FASB issued ASU No. 2018-19, Codification Improvements to Topic 326, Financial Instruments—Credit Losses, which narrowed the scope and changed the effective date for non-public entities for ASU 2016-13. The FASB subsequently issued supplemental guidance within ASU No. 2019-05, Financial Instruments—Credit Losses (Topic 326): Targeted Transition Relief (“ASU 2019-05”). ASU 2019-05 provides an option to irrevocably elect the fair value option for certain financial assets previously measured at amortized cost basis. The Company's adoption of ASU 2016-13 as of January 1, 2023 had no impact on the Company's financial statements as there are no assets held at amortized cost on the balance sheet, and there are no credit losses associated with our available-for-sale debt securities.

In August 2020, the FASB issued ASU 2020-06, Debt—Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging—Contracts in Entity’s Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity which is intended to simplify various aspects of U.S. GAAP for certain financial instruments with characteristics of liabilities and equity. The Company's early adoption of ASU 2020-06 as of January 1, 2023 had no impact on the Company's financial statements and disclosures.

Recently Issued Accounting Pronouncements

The Company considers the applicability and impact of all ASUs. Management determined that although recently issued ASUs may enhance disclosures, the ASUs are not expected to have a material impact on its consolidated financial statements.

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SIGNIFICANT ACCOUNTING POLICIES (Tables)

12 Months Ended

Dec. 31, 2023

Accounting Policies [Abstract]

SCHEDULE OF CASH AND CASH EQUIVALENTS

Cash, cash equivalents, and restricted cash consist of the following:

	December 31, 2023	December 31, 2022
Cash	$4,028,733	$3,805,156
Cash equivalents	9,694,948	13,197,559
Cash and cash equivalents	13,723,681	17,002,715
Restricted cash, current	192,475	192,475
Restricted cash, noncurrent	477,425	477,425
Restricted cash	669,900	669,900
Total cash, cash equivalents, and restricted cash shown in the statement of cash    flows	$14,393,581	$17,672,615

SCHEDULE OF COMPUTATION OF NET LOSS PER COMMON SHARE

The following table sets forth the computation of basic and diluted earnings per share for the years ended December 31, 2023 and 2022:

	Year Ended December 31,
	2023			2022
Net loss	$	(44,603,316	)	$	(42,346,903	)
Weighted average number of common shares-basic		4,327,568			4,170,675
Net loss per share of common stock-basic	$	(10.31	)	$	(10.15	)

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PROPERTY AND EQUIPMENT (Tables)

12 Months Ended

Dec. 31, 2023

Property, Plant and Equipment [Abstract]

SUMMARY OF PROPERTY AND EQUIPMENT

Property and equipment consisted of the following:

	December 31, 2023			December 31, 2022
Computer hardware and software	$	83,711		$	262,203
Office furniture and equipment		1,113,980			1,113,980
Leasehold improvements		3,330,855			3,330,855
Property and equipment, gross		4,528,546			4,707,038
Less: accumulated depreciation		(3,555,332	)		(3,093,223	)
Property and equipment, net	$	973,214		$	1,613,815

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COMMITMENTS AND CONTINGENCIES (Tables)

12 Months Ended

Dec. 31, 2023

Commitments and Contingencies Disclosure [Abstract]

SCHEDULE OF LEASE COSTS

The following table contains a summary of the lease costs recognized under ASC 842 and other information pertaining to the Company’s operating leases for the year ended December 31, 2023 and 2022:

	2023			2022
Lease cost
Operating lease cost	$	1,240,473		$	1,240,473
Total lease cost	$	1,240,473		$	1,240,473
Other information
Weighted average remaining lease term	2.8 years			3.8 years
Weighted average discount rate		8.00	%		8.00	%

SCHEDULE OF MATURITIES OF OPERATING LEASE LIABILITIES

Pursuant to the terms of the Company’s non-cancelable lease agreements in effect at December 31, 2023, the following table summarizes the Company’s maturities of operating lease liabilities as of December 31, 2023:

2024	$1,747,447
2025	1,794,889
2026	1,688,145
Total lease payments	$5,230,481
Less: imputed interest	(555,127)
Total	$4,675,354

SUMMARY OF UNDISCOUNTED SUBLEASE CASH INFLOWS

Undiscounted sublease cash inflows have been summarized in the following table:

2024	$279,585
2025	291,697
2026	252,333
Total sublease payments	$823,615

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INVESTMENTS (Tables)

12 Months Ended

Dec. 31, 2023

Investments, Debt and Equity Securities [Abstract]

SUMMARY OF MARKETABLE SECURITIES

The following table summarizes the Company’s investments as of December 31, 2023:

	Amortized Cost	Gross Unrealized Gain	Gross Unrealized Losses	Fair Value
Debt Securities:
Corporate debt securities	$7,183,066	$679	$(1,420)	$7,182,325
Total	$7,183,066	$679	$(1,420)	$7,182,325

The following table summarizes the Company’s investments as of December 31, 2022:

	Amortized Cost	Gross Unrealized Gain	Gross Unrealized Losses	Fair Value
Debt Securities:
Commercial paper	$12,173,980	$—	$—	$12,173,980
Corporate debt securities	30,146,060	—	(125,744)	30,020,316
Total	$42,320,040	$—	$(125,744)	$42,194,296

SCHEDULE OF AVAILABLE FOR SALE DEBT SECURITIES BY CONTRACTUAL MATURITY

The following table summarizes the amortized cost and fair value of the Company’s available-for-sale marketable debt securities by contractual maturity as of December 31, 2023 (in thousands):

	Amortized Cost	Fair Value
Maturing in one year or less	$7,183,066	$7,182,325
	$7,183,066	$7,182,325

The following table summarizes the amortized cost and fair value of the Company’s available-for-sale marketable debt securities by contractual maturity as of December 31, 2022:

	Amortized Cost	Fair Value
Maturing in one year or less	$42,320,040	$42,194,296
	$42,320,040	$42,194,296

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FAIR VALUE OF FINANCIAL ASSETS AND LIABILITIES (Tables)

12 Months Ended

Dec. 31, 2023

Fair Value Disclosures [Abstract]

SCHEDULE OF ASSETS AND LIABILITIES MEASURED AT FAIR VALUE ON RECURRING BASIS

The following tables present information about the Company’s financial assets and liabilities measured at fair value on a recurring basis and indicate the level of the fair value hierarchy utilized to determine such fair values as of December 31, 2023:

	Level 1	Level 2	Level 3	Total
Assets:
Cash Equivalents:
Money market funds	$7,832,675	$—	$—	$7,832,675
Corporate debt securities	—	1,862,273	—	1,862,273
Investments:
Corporate debt securities	—	7,182,325	—	7,182,325
	$7,832,675	$9,044,598	$—	$16,877,273
Liabilities:
Derivative liabilities	$—	$—	$39,450	$39,450

The following tables present information about the Company’s financial assets and liabilities measured at fair value on a recurring basis and indicate the level of the fair value hierarchy utilized to determine such fair values as of December 31, 2022:

	Level 1	Level 2	Level 3	Total
Assets:
Cash Equivalents:
Money Market funds	$8,470,790	$—	$—	$8,470,790
Commercial paper	—	1,494,538	—	1,494,538
Corporate debt securities	—	3,232,231	—	3,232,231
Investments:
Commercial paper	—	12,173,980	—	12,173,980
Corporate debt securities	—	30,020,316	—	30,020,316
	$8,470,790	$46,921,065	$—	$55,391,855
Liabilities:
Derivative liabilities	$—	$—	$36,868	$36,868

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NOTES PAYABLE (Tables)

12 Months Ended

Dec. 31, 2023

Debt Disclosure [Abstract]

SCHEDULE OF NOTES PAYABLE

The net carrying amounts of the liability components consists of the following:

	December 31, 2023			December 31, 2022
Principal	$	16,303,738		$	20,000,000
Less: debt discount		(2,954,390	)		(2,954,390	)
Accretion of debt discount		2,558,866			1,734,485
Net carrying amount	$	15,908,214		$	18,780,095
Less: current portion of long-term debt		(15,908,214	)		(2,795,669	)
Total long-term debt, net of discount	$	-		$	15,984,426

SCHEDULE OF PRINCIPAL MATURITIES ON LONG TERM DEBT

The following table summarizes the future principal payments, including the $1,590,000 final payment, due under the current portion of long-term debt:

Quarterly Periods Ending	Principal Payments and final payment on Loan Agreement
March 31, 2024	$2,205,970
June 30, 2024	2,279,075
September 30, 2024	13,408,693
December 31, 2024	—
Total Fiscal Year Ending 2024		17,893,738
Total		$17,893,738

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ACCRUED EXPENSES (Tables)

12 Months Ended

Dec. 31, 2023

Payables and Accruals [Abstract]

SCHEDULE OF ACCRUED EXPENSES

Accrued expenses consisted of the following:

	December 31, 2023		December 31, 2022
Accrued pre-clinical and clinical costs	$	6,274,188	$	2,137,317
Accrued product development costs		745,447		247,500
Accrued compensation		2,325,488		2,224,951
Accrued administrative costs		343,285		473,376
Accrued interest		1,342,098		916,108
Total	$	11,030,506	$	5,999,252

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STOCK BASED COMPENSATION AWARDS (Tables)

12 Months Ended

Dec. 31, 2023

Share-Based Payment Arrangement [Abstract]

SCHEDULE OF STOCK-BASED COMPENSATION EXPENSE

	Year ended December 31,
	2023	2022
Research and development expenses	$377,734	$577,472
General and administrative expenses	3,092,420	5,142,165
Total stock-based compensation	$3,470,154	$5,719,637

The total stock-based compensation expense recognized by award type was as follows:

	Year ended December 31,
	2023	2022
Stock options	$3,456,316	$5,719,637
Restricted stock units	13,838	-
Total stock-based compensation	$3,470,154	$5,719,637

SUMMARY OF FAIR VALUE OF OPTIONS GRANTED

The weighted average assumptions used principally in determining the fair value of stock options granted were as follows:

	Year ended December 31,
	2023			2022
Risk free interest rate		3.82	%		1.99	%
Expected dividend yield		0	%		0	%
Expected term in years (employee options)		6.25			6.25
Expected volatility		101.47	%		98.08	%
Estimated forfeiture rate		15.63	%		12.43	%

SUMMARY OF OPTION ACTIVITY

A summary of stock option activity for years ended December 31, 2023 and 2022 is presented below:

Stock Options	Shares	Weighted Average Exercise Price		Weighted Average Remaining Contractual Term in Years	Intrinsic Value
Outstanding at December 31, 2021	510,870	$	121.90
Granted	185,169		12.90
Exercised	—		-
Forfeited or canceled	(56,019)		107.13
Expired	(22,024)		166.53
Outstanding at December 31, 2022	617,996	$	88.99
Granted	291,151		5.15
Exercised	(43,836)		0.85
Forfeited or canceled	(155,046)		68.92
Expired	(1,503)		146.78
Outstanding at December 31, 2023	708,762	$	63.96	6.79	$	20,216,363
Exercisable at December 31, 2023	407,882	$	100.13	5.37	$	6,243,603
Vested and expected to vest at December 31, 2023	663,007	$	67.78	6.64	$	17,879,915

SUMMARY OF NON-VESTED STOCK OPTIONS

As summary of non-vested stock options for the years ended December 31, 2023 and 2022 is presented below:

Stock Options	Shares			Weighted Average Fair Value
Non-vested December 31, 2021		210,503		$	67.80
Granted		185,169			10.19
Vested		(107,269	)		67.54
Forfeited		(29,019	)		43.06
Non-vested at December 31, 2022		259,384		$	29.59
Granted		248,777			4.22
Vested		(116,336	)		30.49
Forfeited		(90,945	)		17.42
Non-vested at December 31, 2023		300,880		$	11.96

Summary of RSU activity

A summary of RSU activity for the years ended December 31, 2023 and 2022 is presented below:

RSUs	Number of Shares Underlying RSUs	Weighted  Average Grant Date Fair Value
Unvested at December 31, 2022	—	$—
Granted	31,076	4.84
Forfeited	(13,165)	4.44
Vested	—	—
Unvested at December 31, 2023	17,911	$5.14

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INCOME TAXES (Tables)

12 Months Ended

Dec. 31, 2023

Income Tax Disclosure [Abstract]

Schedule Of Components Net Loss

The components of the Company's net loss are as follows:

	December 31,
	2023	2022
United States	$(36,133,358)	$(34,842,427)
United Kingdom	(8,455,452)	(7,550,356)
Australia	(14,506)	45,880
Total	$(44,603,316)	$(42,346,903)

SCHEDULE OF COMPONENTS OF NET DEFERRED TAX ASSET

Significant components of the Company’s net deferred tax asset are as follows:

	December 31,
	2023			2022
U.S. and state net operating loss carryforwards	$	59,092,710		$	53,438,141
Foreign net operating loss carryforwards		11,558,247			7,267,176
Tax credit carryforward		9,825,596			9,132,973
Stock-based compensation		5,819,822			8,661,477
Capitalized research and development		6,367,722			3,925,743
Accrued expenses		897,354			503,124
Other temporary differences		1,376,351			1,202,364
Subtotal		94,937,802			84,130,998
Valuation allowance		(94,937,802	)		(84,130,998	)
Net deferred tax asset	$	—		$	—

SCHEDULE OF EFFECTIVE INCOME TAX RATE RECONCILIATION

Income tax benefits computed using the federal statutory income tax rate differs from the Company’s effective tax rate primarily due to the following:

	December 31,
	2023			2022
Tax provision at statutory rate		21.00	%		21.00	%
State income tax, net of federal benefit		5.94	%		5.53	%
Permanent differences		(0.28	)%		(1.72	)%
Foreign expected tax		4.46	%		4.08	%
Tax credits		2.46	%		1.87	%
Foreign income tax rate change		7.42	%		—	%
Other		(11.09	)%		(5.99	)%
Change in valuation reserve		(29.91	)%		(24.77	)%
Total		—	%		—	%

XML

WARRANTS (Tables)

12 Months Ended

Dec. 31, 2023

CFF Warrant [Member]

Class of Warrant or Right [Line Items]

SCHEDULE OF WEIGHTED AVERAGE ASSUMPTION OF WARRANTS

Risk free interest rate	2.60%
Expected dividend yield	0%
Expected term in years	7.00
Expected volatility	83.5%

K2 Warrant [Member]

Class of Warrant or Right [Line Items]

SCHEDULE OF WEIGHTED AVERAGE ASSUMPTION OF WARRANTS

Risk free interest rate	0.60%
Expected dividend yield	0%
Expected term in years	10.00
Expected volatility	80.0%

Warrants [Member]

Class of Warrant or Right [Line Items]

SCHEDULE OF WEIGHTED AVERAGE ASSUMPTION OF WARRANTS

Risk free interest rate	0.90%
Expected dividend yield	0%
Expected term in years	5.00
Expected volatility	100.6%

XML

DERIVATIVE LIABILITY (Tables)

12 Months Ended

Dec. 31, 2023

Derivative Instruments and Hedging Activities Disclosure [Abstract]

SCHEDULE OF FAIR VALUE OF DERIVATIVE LIABILITY

A roll forward of the fair value of the derivative liability for the year ended December 31, 2023 is presented below.

	December 31, 2023
Beginning balance, December 31, 2022	$36,868
Change in fair value of derivative liabilities	2,582
Ending balance, December 31, 2023	$39,450

XML

LIQUIDITY (Details Narrative) - USD ($)				12 Months Ended
	Feb. 02, 2024	Jan. 31, 2024	Jan. 29, 2024	Dec. 31, 2023	Dec. 31, 2022	Jun. 13, 2023	May 31, 2023
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Retained earnings (accumulated deficit)				$ 436,683,983	$ 392,080,667
Cash, cash equivalents and marketable debt securities				20,906,000
Proceeds from issuance initial public offering				109,000,000
Proceeds from issuance of common stock				244,302
Issuance costs incurred				$ 5,218	$ 0
Common stock, par value				$ 0.0001	$ 0.0001
Jefferies LLC [Member] | Subsequent Event [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Net poceeds after deducting underwriting discounts and commissions	$ 88,500,000
Aggregate common stock sold, shares		4,325,000
Proceeds from issuance of common stock	$ 94,500,000
Sale of stock, price per share		$ 19
Common stock, par value		$ 0.0001
Additional shares of common stock		648,750
Issuance of common stock, net of issuance costs, shares		4,325,000
May Thirty One Two Thousend Thirty Three [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Aggregate common stock sold, shares				14,106
Proceeds from issuance of common stock				$ 114,000
Issuance costs incurred				5,200
Authorized to offer and sell up of common stock				$ 16,800,000
May Thirty One Two Thousend Thirty Three [Member] | Jefferies LLC [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Commission percentage							3.00%
May 2023 Sale Agreement [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Authorized to offer and sell up of common stock						$ 16,800,000
May 2023 Sale Agreement [Member] | Subsequent Event [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Proceeds from issuance of common stock			$ 21,237,000
Authorized to offer and sell up of common stock			$ 75,000,000

XML

SIGNIFICANT ACCOUNTING POLICIES - SCHEDULE OF CASH AND CASH EQUIVALENTS (Details) - USD ($)	Dec. 31, 2023	Dec. 31, 2022
Accounting Policies [Abstract]
Cash	$ 4,028,733	$ 3,805,156
Cash Equivalents	9,694,948	13,197,559
Cash and cash equivalents	13,723,681	17,002,715
Restricted cash, current	192,475	192,475
Restricted cash, noncurrent	477,425	477,425
Restricted cash	669,900	669,900
Total cash, cash equivalents, and restricted cash shown in the statement of cash flows	$ 14,393,581	$ 17,672,615

XML

SIGNIFICANT ACCOUNTING POLICIES - SCHEDULE OF COMPUTATION OF NET LOSS PER COMMON SHARE (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Accounting Policies [Abstract]
Net Income (Loss)	$ (44,603,316)	$ (42,346,903)
Weighted average number of common shares-basic	4,327,568	4,170,675
Net loss per share basic	$ (10.31)	$ (10.15)

XML

SIGNIFICANT ACCOUNTING POLICIES (Details Narrative) - USD ($)		12 Months Ended
	Feb. 14, 2023	Dec. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Stockholders Equity, Reverse Stock Split	1-for-30
Restricted cash		$ 669,900	$ 669,900
Restricted cash, current		192,475	192,475
Restricted cash, noncurrent		477,425	477,425
Prepaid Expense and Other Assets, Current		$ 2,447,549	$ 791,616
Change in valuation reserve		(29.91%)	(24.77%)
Unrecognized Tax Benefits		$ 0	$ 0
Impairment charges		$ 0	0
Computer Hardware and Software [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, estimated useful life		3 years
Office Furniture and Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, estimated useful life		3 years
Office Furniture and Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, estimated useful life		5 years
Leaseholds and Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Estimated Useful Lives		Property, Plant and Equipment, Net
Deferred Tax Assets [Member]
Property, Plant and Equipment [Line Items]
Change in valuation reserve		100.00%
UNITED KINGDOM
Property, Plant and Equipment [Line Items]
Cash held in subsidiary		$ 3,772,000	2,805,000
Cash, cash equivalents and investments		3,772,000	2,805,000
Prepaid Expense and Other Assets, Current		1,192,000	$ 136,000
Letter of Credit [Member]
Property, Plant and Equipment [Line Items]
Restricted cash		669,900
Restricted cash, current		192,475
Restricted cash, noncurrent		$ 477,425

XML

SUMMARY OF INVESTMENTS (Details) - USD ($)	Dec. 31, 2023	Dec. 31, 2022
Net Investment Income [Line Items]
Debt Securities, Available-for-Sale, Amortized Cost	$ 7,183,066,000	$ 42,320,040
Debt Securities, Available-for-Sale	7,182,325,000	42,194,296
Other investments and Debt Securities, Amortized Cost Basic	7,183,066	42,320,040
Other Investments and Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	679	0
Other Investments and Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	(1,420)	(125,744)
Other Investments and Debt Securities, Available-for-sale	7,182,325	42,194,296
Corporate Debt Securities [Member]
Net Investment Income [Line Items]
Debt Securities, Available-for-Sale, Amortized Cost	7,183,066	30,146,060
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax	679	0
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	(1,420)	(125,744)
Debt Securities, Available-for-Sale	$ 7,182,325	30,020,316
Commercial Paper [Member]
Net Investment Income [Line Items]
Debt Securities, Available-for-Sale, Amortized Cost		12,173,980
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax		0
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax		0
Debt Securities, Available-for-Sale		$ 12,173,980

XML

INVESTMENTS - SUMMARIZES THE AMORTIZED COST AND FAIR VALUE (Details) - USD ($)	Dec. 31, 2023	Dec. 31, 2022
Investments, Debt and Equity Securities [Abstract]
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One	$ 7,183,066,000	$ 42,320,040
Debt Securities, Available-for-sale, Amortized Cost	7,183,066,000	42,320,040
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One	7,182,325,000	42,194,296
Debt Securities, Available-for-sale, Fair Value	$ 7,182,325,000	$ 42,194,296

XML

SCHEDULE OF AVAILABLE FOR SALE DEBT SECURITIES BY CONTRACTUAL MATURITY (Details) - USD ($)	Dec. 31, 2023	Dec. 31, 2022
Investments, Debt and Equity Securities [Abstract]
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One	$ 7,183,066,000	$ 42,320,040
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One	7,182,325,000	42,194,296
Amortized Cost	7,183,066,000	42,320,040
Fair Value	$ 7,182,325,000	$ 42,194,296

XML

INVESTMENTS (Details Narrative) - USD ($)	Dec. 31, 2023	Dec. 31, 2022
Investments, Debt and Equity Securities [Abstract]
Debt Securities, Available-for-Sale	$ 7,182,325,000	$ 42,194,296

XML

SCHEDULE OF ASSETS AND LIABILITIES MEASURED AT FAIR VALUE ON RECURRING BASIS (Details) - USD ($)	Dec. 31, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability, Statement of Financial Position [Extensible Enumeration]		Derivative Liability, Current
Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value, Total	$ 16,877,273	$ 55,391,855
Liabilities, Fair Value	39,450	36,868
Fair Value, Recurring [Member] | Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash Equivalents, Fair Value	7,832,675	8,470,790
Fair Value, Recurring [Member] | Commercial Paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable Securities, Fair Value		12,173,980
Fair Value, Recurring [Member] | Term Deposits [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable Securities, Fair Value		1,494,538
Fair Value, Recurring [Member] | Corporate Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash Equivalents, Fair Value	7,182,325	30,020,316
Marketable Securities, Fair Value	1,862,273	3,232,231
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value, Total	7,832,675	8,470,790
Liabilities, Fair Value	0	0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash Equivalents, Fair Value	7,832,675	8,470,790
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Commercial Paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable Securities, Fair Value		0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Term Deposits [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable Securities, Fair Value		0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Corporate Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash Equivalents, Fair Value	0	0
Marketable Securities, Fair Value	0	0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value, Total	9,044,598	46,921,065
Liabilities, Fair Value	0	0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash Equivalents, Fair Value	0	0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Commercial Paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable Securities, Fair Value		12,173,980
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Term Deposits [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable Securities, Fair Value		1,494,538
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Corporate Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash Equivalents, Fair Value	7,182,325	30,020,316
Marketable Securities, Fair Value	1,862,273	3,232,231
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value, Total	0	0
Liabilities, Fair Value	39,450	36,868
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash Equivalents, Fair Value	0	0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Commercial Paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable Securities, Fair Value		0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Term Deposits [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable Securities, Fair Value		0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Corporate Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash Equivalents, Fair Value	0	0
Marketable Securities, Fair Value	$ 0	$ 0

XML

LICENSE AGREEMENT (Details Narrative) - USD ($)								3 Months Ended	12 Months Ended
	Dec. 30, 2024	Jun. 30, 2024	Dec. 31, 2023	Feb. 12, 2023	Nov. 17, 2022	May 26, 2021	Sep. 20, 2018	Mar. 31, 2023	Dec. 31, 2023	Dec. 31, 2022
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Other Liabilities, Noncurrent			$ 44,411						$ 44,411	$ 22,205
Potential milestone payments									1,225,000
Research and Development Expense [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Upfront cash payment									0
Jenrin Agreement [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Upfront cash payment							$ 250,000		5,000,000
Jenrin Agreement [Member] | Maximum [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Potential milestone payments							$ 18,400,000
UCSF Lincense Agreement [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Potential milestone payments									1,200,000
Accrued pre-clinical cost	$ 1,625,000	$ 400,000	300,000						2,325,000
License issuance fee					$ 750,000	$ 1,500,000
Additional payment of indication milestone						50,000
Installment of license issuance fee					$ 375,000
UCSF Lincense Agreement [Member] | Maximum [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Potential milestone payments						$ 153,150,000
Cspc License Agreement [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Upfront cash payment				$ 7,500,000
Other Liabilities, Noncurrent			$ 2,500,000						2,500,000
Installment of license issuance fee									$ 7,500,000
Cspc License Agreement [Member] | Maximum [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Potential milestone payments				555,000,000
Installment of license issuance fee								$ 5,000,000
Cspc License Agreement [Member] | Minimum [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Potential milestone payments				130,000,000
Installment of license issuance fee				$ 2,500,000

XML

SUMMARY OF PROPERTY AND EQUIPMENT (Details) - USD ($)	Dec. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 4,528,546	$ 4,707,038
Less: accumulated depreciation	(3,555,332)	(3,093,223)
Property and equipment, net	973,214	1,613,815
Computer Hardware and Software [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	83,711	262,203
Office Furniture and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	1,113,980	1,113,980
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 3,330,855	$ 3,330,855

XML

PROPERTY AND EQUIPMENT (Details Narrative) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Abstract]
Depreciation	$ 641,000	$ 763,000

XML

COMMITMENTS AND CONTINGENCIES (Details Narrative)	12 Months Ended
	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Aug. 26, 2021 ft²	Aug. 21, 2017 USD ($) ft²
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Sublease income	$ 226,153	$ 220,531
Lease expenses	$ 1,700,005	$ 1,652,563
Sublease Agreement Description	Effective August 26, 2021, the Company entered into a sublease agreement with a third party to sublease 12,112 square feet of the 30,023 square feet currently being leased under one of its two existing lease agreements. The sublease commenced on October 1, 2021 and was scheduled to end on October 31, 2026, however, it is in the process of being terminated early.
Sublease to third party | ft²			12,112
Total sublease area | ft²			30,023
Third And Fourth Anniversary [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Irrevocable letter of credit				$ 50,000,000
August 2017 Lease Agreement [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Area of office space | ft²				63,256
Leasehold improvements				$ 2,071,000
Irrevocable letter of credit				$ 769,900
Unsecured letter of credit	$ 669,900

XML

COMMITMENTS AND CONTINGENCIES - SCHEDULE OF MATURITIES OF OPERATING LEASE LIABILITIES (Details)	Dec. 31, 2023 USD ($)
Commitments and Contingencies Disclosure [Abstract]
2024	$ 1,747,447
2025	1,794,889
2026	1,688,145
Total lease payments	5,230,481
Less: imputed interest	(555,127)
Operating Lease, Liability	$ 4,675,354

XML

COMMITMENTS AND CONTINGENCIES - SCHEDULE OF LEASE COSTS (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
Operating lease cost	$ 1,240,473	$ 1,240,473
Lease, Cost, Total	$ 1,240,473	$ 1,240,473
Weighted average remaining lease term	2 years 9 months 18 days	3 years 9 months 18 days
Weighted average discount rate	8.00%	8.00%

XML

COMMITMENTS AND CONTINGENCIES - SUMMARY OF UNDISCOUNTED SUBLEASE CASH INFLOWS (Details)	Dec. 31, 2023 USD ($)
Commitments and Contingencies Disclosure [Abstract]
2024	$ 279,585
2025	291,697
2026	252,333
Total sublease payments	$ 823,615

XML

NOTES PAYABLE - SCHEDULE OF NOTES PAYABLE (Details) - USD ($)	Dec. 31, 2023	Dec. 31, 2022
Debt Disclosure [Abstract]
Principal	$ 16,303,738	$ 20,000,000
Less: debt discount	(2,954,390)	(2,954,390)
Accretion of debt discount	2,558,866	1,734,485
Net carrying amount	15,908,214	18,780,095
Less: current portion of long-term debt	(15,908,214)	(2,795,669)
Total long-term debt, net of discount	$ 0	$ 15,984,426

XML

NOTES PAYABLE - SCHEDULE OF PRINCIPAL MATURITIES ON LONG TERM DEBT (Details)	Dec. 31, 2023 USD ($)
Debt Instrument [Line Items]
Total Fiscal Year Ending 2024	$ 17,893,738
Total	17,893,738
March 31, 2024
Debt Instrument [Line Items]
Total Fiscal Year Ending 2024	2,205,970
June 30, 2024
Debt Instrument [Line Items]
Total Fiscal Year Ending 2024	2,279,075
September 30, 2024
Debt Instrument [Line Items]
Total Fiscal Year Ending 2024	13,408,693
December 31, 2024
Debt Instrument [Line Items]
Total Fiscal Year Ending 2024	$ 0

XML

NOTES PAYABLE (Details Narrative) - USD ($)			1 Months Ended			12 Months Ended
	Mar. 06, 2024	Jul. 28, 2020	Nov. 30, 2023	Nov. 30, 2022	Nov. 30, 2021	Dec. 31, 2023	Dec. 31, 2022
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Debt Instrument, Unamortized Discount						$ 2,954,390	$ 2,954,390
Interest Expense, Debt						3,810,000	3,097,000
Lenders [Member]
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Debt Instrument, Unamortized Discount						2,954,000
K2 HealthVentures LLC [Member]
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Debt issuance cost		$ 1,244,000
Insurance Policy [Member]
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Prepaid Expense, Current						$ 345,667	418,750
Loan Agreement [Member]
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Notes payable			$ 373,320	$ 452,250	$ 984,375
Debt Instrument, Periodic Payment			$ 38,741	$ 51,387	$ 111,041
Monthly loan payments term			ten-month period	nine-month period	nine-month period
Debt Instrument, Interest Rate, Stated Percentage			8.15%	5.40%	3.64%
Loan Agreement [Member] | K2 HealthVentures LLC [Member]
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Debt Instrument, Interest Rate, Stated Percentage						13.75%
Secured debt						$ 17,893,738
Debt Instrument, Description		The loan matures on August 1, 2024 and the Company is obligated to make interest only payments for the first 24 months and then interest and equal principal payments for the next 24 months commencing on September 1, 2022.
Debt Instrument, Maturity Date		Aug. 01, 2024
Debt Conversion, Converted Instrument, Amount	$ 1,125,000					$ 875,000	$ 5,000,000
Conversion price per share	$ 7.875					$ 4.5	$ 282
Warrants to purchase shares of common stock, exercised	142,857	2,873				194,444
Exercise price of warrants		$ 208.8
Proceeds from Warrant Exercises		$ 472,000
Proceeds from prepayment and default features		546,000
Final payment		1,590,000				$ 1,590,000
Increase in fair value of conversion option							$ 573,000
Loan Agreement [Member] | K2 HealthVentures LLC [Member] | Share-based Payment Arrangement, Tranche One [Member]
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Secured debt		$ 20,000,000
Event of Default - Loan Agreement [Member] | K2 HealthVentures LLC [Member]
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Debt Instrument, Interest Rate, Stated Percentage						5.00%
Debt Instrument, Maturity Date						Aug. 01, 2024
Amended loan agreement | K2 HealthVentures LLC [Member]
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Debt Instrument, Description		The Company entered into an Amendment to the Loan and Security Agreement (the "Amended Loan and Security Agreement") on October 25, 2022. The Amended Loan and Security Agreement defers the commencement of principal repayments by a one-year period from September 1, 2022 to September 1, 2023 and if the Company raises at least $30 million in net proceeds through capital raising transactions, the commencement of principal repayments will be deferred by an additional six months to March 1, 2024. Interest accrues at a variable annual rate equal to the greater of (i) 8.5% and (ii) the rate of interest noted in The Wall Street Journal, Money Rates section, as the “Prime Rate” plus 5.25%, in each case, subject to a step-down of 25 basis points upon the funding of the second tranche.
Debt issuance cost		$ 119,000
Debt 1 [Member] | Loan Agreement [Member] | K2 HealthVentures LLC [Member]
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Debt Conversion, Converted Instrument, Amount							2,000,000
Debt 1a [Member] | Loan Agreement [Member] | K2 HealthVentures LLC [Member]
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Debt Conversion, Converted Instrument, Amount						$ 4,125,000	$ 875,000
Debt 1a [Member] | Loan Agreement [Member] | K2 HealthVentures LLC [Member] | Maximum [Member]
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Conversion price per share							$ 4.5
Debt 1a [Member] | Loan Agreement [Member] | K2 HealthVentures LLC [Member] | Minimum [Member]
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Conversion price per share							$ 282
Debt 1b [Member] | Loan Agreement [Member] | K2 HealthVentures LLC [Member]
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Debt Conversion, Converted Instrument, Amount							$ 1,125,000
Debt 1b [Member] | Loan Agreement [Member] | K2 HealthVentures LLC [Member] | Maximum [Member]
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Conversion price per share							$ 7.875
Debt 1b [Member] | Loan Agreement [Member] | K2 HealthVentures LLC [Member] | Minimum [Member]
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Conversion price per share							$ 282
Debt 2 [Member] | Loan Agreement [Member] | K2 HealthVentures LLC [Member]
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Debt Conversion, Converted Instrument, Amount							$ 3,000,000
Conversion price per share							$ 282

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SCHEDULE OF ACCRUED EXPENSES (Details) - USD ($)	Dec. 31, 2023	Dec. 31, 2022
Payables and Accruals [Abstract]
Accrued pre-clinical and clinical costs	$ 6,274,188	$ 2,137,317
Accrued product development costs	745,447	247,500
Accrued compensation	2,325,488	2,224,951
Accrued administrative costs	343,285	473,376
Accrued interest	1,342,098	916,108
Total	$ 11,030,506	$ 5,999,252

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COMMON STOCK (Details Narrative) - USD ($)					12 Months Ended
	Feb. 02, 2024	Jan. 31, 2024	Jan. 29, 2024	Feb. 14, 2023	Dec. 31, 2023	Dec. 31, 2022	Jun. 13, 2023
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Common stock, shares authorized					300,000,000	300,000,000
Common stock, par value					$ 0.0001	$ 0.0001
Common stock, shares issued					4,423,683	4,171,297
Common Shares					4,423,683	4,171,297
Gross proceeds from sale of stock					$ 244,302
Stockholders Equity, Reverse Stock Split				1-for-30
Issuance costs incurred					$ 5,218	$ 0
Issuance of common stock upon exercise of stock options, shares					43,836
Warrant [Member]
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Warrants to purchase shares of common stock, exercised					0	0
Equity Option [Member]
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Issuance of common stock upon exercise of stock options, shares					43,836	0
Proceeds from exercise of stock options					$ 129,740	$ 0
May 2023 Sale Agreement [Member]
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Authorized to offer and sell up of common stock							$ 16,800,000
May 2023 Sale Agreement [Member] | Jefferies LLC [Member]
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Common stock, shares issued					5,200
Aggregate common stock sold, shares					14,106
Gross proceeds from sale of stock					$ 114,000
Issuance costs incurred					295,000
May 2023 Sale Agreement [Member] | Jefferies LLC [Member] | Maximum [Member]
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Authorized to offer and sell up of common stock					$ 16,800,000
Professional Services Agreement [Member] | Restricted Stock [Member]
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Shares issued					0	1,666
K2HV Amended Loan and Security Agreement [Member]
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Shares issued					194,444	0
Subsequent Event [Member] | Jefferies LLC [Member]
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Common stock, par value		$ 0.0001
Aggregate common stock sold, shares		4,325,000
Purchase price per share		$ 19
Gross proceeds from sale of stock	$ 94,500,000
Shares issued		4,325,000
Subsequent Event [Member] | May 2023 Sale Agreement [Member]
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Authorized to offer and sell up of common stock			$ 75,000,000
Gross proceeds from sale of stock			$ 21,237,000

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SCHEDULE OF COMPONENTS OF NET DEFERRED TAX ASSET (Details) - USD ($)	Dec. 31, 2023	Dec. 31, 2022
Income Tax Disclosure [Abstract]
U.S. and state net operating loss carryforwards	$ 59,092,710	$ 53,438,141
Foreign net operating loss carryforward	11,558,247	7,267,176
Tax credit carryforward	9,825,596	9,132,973
Stock based compensation	5,819,822	8,661,477
Capitalized research and development	6,367,722	3,925,743
Accrued expenses	897,354	503,124
Other temporary differences	1,376,351	1,202,364
Subtotal	94,937,802	84,130,998
Valuation allowance	(94,937,802)	(84,130,998)
Net deferred tax asset	$ 0	$ 0

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SCHEDULE OF COMPONENTS NET LOSS (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Operating Loss Carryforwards [Line Items]
Net Income (Loss)	$ (44,603,316)	$ (42,346,903)
UNITED STATES
Operating Loss Carryforwards [Line Items]
Net Income (Loss)	(36,133,358)	(34,842,427)
UNITED KINGDOM
Operating Loss Carryforwards [Line Items]
Net Income (Loss)	(8,455,452)	(7,550,356)
AUSTRALIA
Operating Loss Carryforwards [Line Items]
Net Income (Loss)	$ (14,506)	$ 45,880

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SCHEDULE OF EFFECTIVE INCOME TAX RATE RECONCILIATION - (Details)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Tax provision at statutory rate	21.00%	21.00%
State income taxes, net of federal benefit	5.94%	5.53%
Permanent differences	(0.28%)	(1.72%)
Foreign expected tax	4.46%	4.08%
Tax credits	2.46%	1.87%
Foreign income tax rate change	7.42%	0.00%
Other	(11.09%)	(5.99%)
Change in valuation reserve	(29.91%)	(24.77%)
Effective Income Tax Rate Reconciliation, Percent, Total	0.00%	0.00%

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INCOME TAXES (Details Narrative) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2019
Operating Loss Carryforwards [Line Items]
Research and development tax credit carryforwards	$ 10,046,000	$ 9,376,000
Deferred tax assets valuation allowance increase	10,807,000	8,633,000
Capitalized R&D costs	23,557,000	14,523,000
Uncertain tax position	$ 0	0
Capitalize and amortize research and development, description	We will amortize these costs for tax purposes over 5 years for R&D performed in the U.S. and over 15 years for R&D performed outside the U.S.
Federal [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	$ 218,633,000	$ 197,846,000
Operating loss carryforwards expiration year	2029
Net operating loss carryforwards no expiration	$ 218,633,000		$ 162,282,000
Net operating loss carryforwards limitation percentage on taxable income	80.00%	80.00%
MASSACHUSETTS [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	$ 208,042,000	$ 188,273,000
Foreign Tax Authority [Member]
Operating Loss Carryforwards [Line Items]
Research and development tax credit carryforwards	$ 2,687,000	$ 90,000

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PREFERRED STOCK (Additional Information) (Details) - $ / shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 20, 2022	Oct. 12, 2022
Preferred stock authorised	10,000,000	10,000,000
Preferred stock, par value	$ 0.0001	$ 0.0001
Preferred share, issued	0	0
Preferred stock outstanding	0	0
Series A Preferred Stock [Member]
Preferred share, issued			500,894.04	1,002,247.048
Stock issued during period, shares, reverse stock splits	501,353.008
Preferred stock outstanding				0.008
Preferred Stock, Description	Each share of Series A Preferred Stock is entitled to receive $0.001 in cash for each 10 whole shares of Series A Preferred Stock immediately prior to the Redemption.

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STOCK-BASED COMPENSATION AWARDS (Details Narrative) - USD ($)		1 Months Ended	12 Months Ended
	Jan. 01, 2024	Apr. 30, 2014	Dec. 31, 2023	Dec. 31, 2022	Jan. 01, 2023
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Option granted expected term			6 years 3 months
Total unrecognized compensation expense			$ 62,000
Share-based compensation expense, not yet recognized period of recognition			3 years 2 months 19 days
Equity Option [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Weighted average grant-date fair value, options granted			$ 4.2	$ 10.2
Average intrinsic value of options exercised			$ 92,689	$ 0
Total unrecognized compensation expense			$ 2,769,000
Share-based compensation expense, not yet recognized period of recognition			1 year 5 months 26 days
Restricted Stock Units (RSUs) [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period			4 years
2014 Equity Incentive Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Percentage of outstanding common shares		7.00%
Shares available for future issuance					1,436,558
Shares available for future grants					741,870
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period			4 years
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period			10 years
2014 Equity Incentive Plan [Member] | January 1, 2022 [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Percentage of outstanding common shares				7.00%
Increase in number of shares of common stock available for issuance				291,991
2014 Equity Incentive Plan [Member] | January 1, 2024 [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Percentage of outstanding common shares			7.00%
Increase in number of shares of common stock available for issuance			309,658
2014 Equity Incentive Plan [Member] | Subsequent Event [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Shares available for future issuance	1,746,215
Shares available for future grants	899,015
2014 Equity Incentive Plan [Member] | Subsequent Event [Member] | Evergreen Provision [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Percentage of outstanding common shares	7.00%
Increase in number of shares of common stock available for issuance	309,658
Shares available for future issuance	1,746,215
Shares available for future grants	899,015

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STOCK-BASED COMPENSATION AWARDS - SCHEDULE OF STOCK-BASED COMPENSATION EXPENSE (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-based Payment Arrangement, Expense	$ 3,470,154	$ 5,719,637
Research and Development Expense [Member]
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-based Payment Arrangement, Expense	377,734	577,472
General And Administrative Expense [Member]
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-based Payment Arrangement, Expense	3,092,420	5,142,165
Stock Options [member]
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-based Payment Arrangement, Expense	3,456,316	5,719,637
Restricted Stock Units (RSUs) [Member]
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-based Payment Arrangement, Expense	$ 13,838	$ 0

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STOCK-BASED COMPENSATION AWARDS - SUMMARY OF FAIR VALUE OF OPTIONS GRANTED (Details)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Option Indexed to Issuer's Equity [Line Items]
Expected term in years	6 years 3 months
Employee Stock Option [Member]
Option Indexed to Issuer's Equity [Line Items]
Risk free interest rate	3.82%	1.99%
Expected dividend yield	0.00%	0.00%
Expected term in years	6 years 3 months	6 years 3 months
Expected volatility	101.47%	98.08%
Estimated Forfeiture Rate	15.63%	12.43%

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STOCK-BASED COMPENSATION AWARDS - SUMMARY OF OPTION ACTIVITY (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Share-Based Payment Arrangement [Abstract]
Shares, Outstanding, Beginning balance	617,996	510,870
Granted	291,151	185,169
Shares, Exercised	(43,836)
Shares, Forfeited or canceled	(155,046)	(56,019)
Shares, Expired	(1,503)	(22,024)
Shares, Outstanding, Ending balance	708,762	617,996
Shares, Exercisable	407,882
Shares, Vested and expected to vest	663,007
Weighted Average Exercise Price, Outstanding, Beginning balance	$ 88.99	$ 121.9
Weighted Average Exercise Price, Granted	5.15	12.9
Weighted Average Exercise Price, Exercised	0.85
Weighted Average Exercise Price, Forfeited	68.92	107.13
Weighted Average Exercise Price , Expired	146.78	166.53
Weighted Average Exercise Price, Outstanding, Ending balance	63.96	$ 88.99
Weighted Average Exercise Price, Exercisable	100.13
Weighted Average Exercise Price, Vested and expected to vest	$ 67.78
Weighted Average Remaining Contractual Term in Years, Outstanding	6 years 9 months 14 days
Weighted Average Remaining Contractual Term in Years, Vested	5 years 4 months 13 days
Weighted Average Remaining Contractual Term in Years, Vested and expected to vest	6 years 7 months 20 days
Average Intrinsic Value, Outstanding	$ 20,216,363
Average Intrinsic Value, Vested	6,243,603
Aggregate Intrinsic Value, Vested and expected to vest	$ 17,879,915

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STOCK-BASED COMPENSATION AWARDS - SUMMARY OF NON-VESTED STOCK OPTION (Details) - $ / shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Granted	291,151	185,169
Non-vested stock options
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Shares Non-vested , Beginning balance	259,384	210,503
Granted	248,777	185,169
Shares, Vested	(116,336)	(107,269)
Shares, Forfeited	(90,945)	(29,019)
Shares Outstanding, Ending balance	300,880	259,384
Weighted Average Fair Value Non Vested, Beginning Balance	$ 29.59	$ 67.8
Weighted average grant-date fair value, options granted	4.22	10.19
Weighted Average Fair Value, Vested	30.49	67.54
Weighted Average Fair Value, Forfeited	17.42	43.06
Weighted Average Fair Value Non Vested, Ending Balance	$ 11.96	$ 29.59

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STOCK-BASED COMPENSATION AWARDS - Summary of RSU Activity (Details)	12 Months Ended
	Dec. 31, 2023 $ / shares shares
Share-Based Payment Arrangement [Abstract]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period | shares	31,076
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value | $ / shares	$ 4.84
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period | shares	13,165
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value | $ / shares	$ 4.44
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance | shares	17,911
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value, Ending Balance | $ / shares	$ 5.14

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WARRANTS (Details Narrative) - USD ($)				12 Months Ended
	Mar. 06, 2024	Oct. 16, 2020	Jul. 28, 2020	Dec. 31, 2023	Dec. 31, 2022	Jan. 26, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Issuance of common stock upon exercise of stock options, shares				43,836
Debt face amount				$ 16,303,738	$ 20,000,000
Warrant [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Warrants to purchase shares of common stock, exercised				0	0
Share-Based Payment Arrangement, Tranche One [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Debt face amount			$ 20,000,000
CFF Warrant [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights						33,334
Exercise price of warrants						$ 396
Warrant exercisable price per share						$ 396
Investment Agreement [Member] | CFF Warrant [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights				50,207		33,334
Exercise price of warrants				$ 283.81
Warrant exercisable price per share				$ 283.81
Weighted average remaining life of warrants				1 year 7 months 6 days
Warrant expire date				Jan. 26, 2025
Fair Value Adjustment of Warrants				$ 6,215,225
Loan Agreement [Member] | K2 HealthVentures LLC [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Exercise price of warrants			$ 208.8
Warrants to purchase shares of common stock, exercised	142,857		2,873	194,444
Warrant exercisable price per share			$ 208.8
Loan Agreement [Member] | K2 Warrant [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights			2,873
Exercise price of warrants			$ 208.8
Warrants to purchase shares of common stock, exercised			2,873
Warrant exercisable price per share			$ 208.8
Warrant expire date			Jul. 28, 2030
Fair Value Adjustment of Warrants			$ 472,409
Loan Agreement [Member] | K2 Warrant [Member] | Maximum [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Debt face amount			$ 50,000,000
Professional Services Agreement [Member] | Warrants [Member] | Investor Relations Service Provider [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights		14,000
Exercise price of warrants		$ 32.1
Warrant exercisable price per share		$ 32.1
Fair Value Adjustment of Warrants		$ 334,740

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SCHEDULE OF WEIGHTED AVERAGE ASSUMPTION OF WARRANTS (Details)	Dec. 31, 2023
CFF Warrant [Member] | Measurement Input, Risk Free Interest Rate [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Warrants and Rights Outstanding, Measurement Input	2.6
CFF Warrant [Member] | Measurement Input, Expected Dividend Rate [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Warrants and Rights Outstanding, Measurement Input	0
CFF Warrant [Member] | Measurement Input, Expected Term [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Warrants and Rights Outstanding, Term	7 years
CFF Warrant [Member] | Measurement Input, Price Volatility [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Warrants and Rights Outstanding, Measurement Input	83.5
Warrants [Member] | Measurement Input, Risk Free Interest Rate [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Warrants and Rights Outstanding, Measurement Input	0.9
Warrants [Member] | Measurement Input, Expected Dividend Rate [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Warrants and Rights Outstanding, Measurement Input
Warrants [Member] | Measurement Input, Expected Term [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Warrants and Rights Outstanding, Term	5 years
Warrants [Member] | Measurement Input, Price Volatility [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Warrants and Rights Outstanding, Measurement Input	100.6
K2 Warrant [Member] | Measurement Input, Risk Free Interest Rate [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Warrants and Rights Outstanding, Measurement Input	0.6
K2 Warrant [Member] | Measurement Input, Expected Dividend Rate [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Warrants and Rights Outstanding, Measurement Input	0
K2 Warrant [Member] | Measurement Input, Expected Term [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Warrants and Rights Outstanding, Term	10 years
K2 Warrant [Member] | Measurement Input, Price Volatility [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Warrants and Rights Outstanding, Measurement Input	80

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SCHEDULE OF FAIR VALUE OF DERIVATIVE LIABILITY (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Beginning balance, December 31, 2022	$ 36,868
Change in fair value of derivative liabilities	2,582	$ (96,842)
Ending balance, December 31, 2023	$ 39,450	$ 36,868

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DERIVATIVE LIABILITY (Details Narrative) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Jul. 28, 2020
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Derivative Liability, Fair Value	$ 39,450	$ 36,868
Gain (Loss) on Sale of Derivatives	$ (2,582)	$ 96,842
Probability of decreased repayment of loan	10.00%	35.00%
Probability of increased in repayment of loan	40.00%	55.00%
Loan Agreement [Member] | K2 HealthVentures LLC [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Secured debt	$ 17,893,738
Derivative Liability, Fair Value	39,450	$ 36,868
Gain (Loss) on Sale of Derivatives	$ 2,582
Loan Agreement [Member] | K2 HealthVentures LLC [Member] | Share-based Payment Arrangement, Tranche One [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Secured debt			$ 20,000,000

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SUBSEQUENT EVENTS (Details Narrative)						1 Months Ended	12 Months Ended
	Feb. 08, 2024 USD ($) Days	Feb. 02, 2024 USD ($)	Jan. 31, 2024 $ / shares shares	Jan. 29, 2024 USD ($)	Jan. 01, 2024 shares	Apr. 30, 2014	Dec. 31, 2023 USD ($) $ / shares shares	Dec. 31, 2022 USD ($) $ / shares shares	Mar. 06, 2024 USD ($) $ / shares shares	Jun. 13, 2023 USD ($)	Jan. 01, 2023 shares
Subsequent Event [Line Items]
Common stock, par value | $ / shares							$ 0.0001	$ 0.0001
Proceeds from issuance of common stock | $							$ 244,302
Common Shares | shares							4,423,683	4,171,297
Issuance costs incurred, net proceeds | $							$ 5,218	$ 0
K2 HealthVentures LLC Debt Conversion [Member]
Subsequent Event [Line Items]
Outstanding Loan | $									$ 1,125,000
Common Shares | shares									142,857
Conversion price per share | $ / shares									$ 7.875
2014 Equity Incentive Plan [Member]
Subsequent Event [Line Items]
Percentage of outstanding common shares						7.00%
Shares available for future issuance | shares											1,436,558
Shares available for future grants | shares											741,870
May 2023 Sale Agreement [Member]
Subsequent Event [Line Items]
Authorized to offer and sell up of common stock | $										$ 16,800,000
May 2023 Sale Agreement [Member] | Jefferies LLC [Member]
Subsequent Event [Line Items]
Aggregate common stock sold, shares | shares							14,106
Proceeds from issuance of common stock | $							$ 114,000
Issuance costs incurred, net proceeds | $							295,000
Maximum [Member] | May 2023 Sale Agreement [Member] | Jefferies LLC [Member]
Subsequent Event [Line Items]
Authorized to offer and sell up of common stock | $							$ 16,800,000
Subsequent Event [Member]
Subsequent Event [Line Items]
Market value of listed securities | $	$ 35,000,000
Consecutive business days | Days	10
Subsequent Event [Member] | Jefferies LLC [Member]
Subsequent Event [Line Items]
Aggregate common stock sold, shares | shares			4,325,000
additional shares of common stock | shares			648,750
Common stock, par value | $ / shares			$ 0.0001
Purchase price per share | $ / shares			$ 19
Proceeds from issuance of common stock | $		$ 94,500,000
Net Poceeds after deducting Underwriting Discounts and Commissions | $		$ 88,500,000
Subsequent Event [Member] | 2014 Equity Incentive Plan [Member]
Subsequent Event [Line Items]
Shares available for future issuance | shares					1,746,215
Shares available for future grants | shares					899,015
Subsequent Event [Member] | 2014 Equity Incentive Plan [Member] | Evergreen Provision [Member]
Subsequent Event [Line Items]
Increases in number of shares of common stock available for issuance, minimum percentage of outstanding common stock					7.00%
Increase in number of shares of common stock available for issuance | shares					309,658
Percentage of outstanding common shares					7.00%
Shares available for future issuance | shares					1,746,215
Shares available for future grants | shares					899,015
Subsequent Event [Member] | May 2023 Sale Agreement [Member]
Subsequent Event [Line Items]
Proceeds from issuance of common stock | $				$ 21,237,000
Authorized to offer and sell up of common stock | $				$ 75,000,000

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SUBSEQUENT EVENTS - Consolidated Statements of Operations and Comprehensive Loss (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Operating expenses:
Research and development	$ 31,167,660	$ 16,136,826
General and administrative	13,909,641	18,698,619
Litigation settlement	0	5,000,000
Total operating expenses	45,077,301	39,835,445
Operating loss	(45,077,301)	(39,835,445)
Other income (expense), net:
Other income (expense), net	3,389,440	(48,773)
Interest Income (Expense), Net	(2,923,974)	(2,132,091)
Change in fair value of derivative liability	(2,582)	96,842
Foreign currency transaction gain (loss), net	11,101	(427,436)
Other income (expense), net	473,985	(2,511,458)
Net loss	$ (44,603,316)	$ (42,346,903)
Net loss per share basic	$ (10.31)	$ (10.15)
Earnings Per Share, Diluted	$ (10.31)	$ (10.15)
Weighted average number of common shares-basic	4,327,568	4,170,675
Weighted average number of common shares outstanding, diluted	4,327,568	4,170,675
Comprehensive loss:
Net Income (Loss)	$ (44,603,316)	$ (42,346,903)
Other comprehensive income (loss):
Change in unrealized gain (loss) on marketable debt securities	124,536	(63,647)
Total other comprehensive income (loss)	124,536	(63,647)
Total comprehensive loss	$ (44,478,780)	$ (42,410,550)