UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

CORBUS PHARMACEUTICALS HOLDINGS, INC.

(Exact name of Registrant as Specified in Its Charter)

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

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

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

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. ☐

Item 3.01 Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing.

As previously disclosed on the Current Report on Form 8-K filed on November 13, 2023, Corbus Pharmaceuticals Holdings, Inc. (the “Company”) received a letter (the “Letter”) from the Listing Qualifications Department of the Nasdaq Stock Market LLC (the “Staff”) indicating that the Company was not in compliance with the minimum stockholders’ equity requirement for continued listing on The Nasdaq Capital Market, under Listing Rule 5550(b)(1), because the Company’s stockholders’ equity of $311,016, as reported in the Company’s 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, the Company 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.

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. If the Company fails to evidence compliance by May 8, 2024 and upon filing its periodic report for the quarter ending June 30, 2024, it may be subject to delisting. If the Staff determines to delist the Company’s common stock, the Company will have the right to appeal to a Nasdaq hearings panel. There can be no assurance that the Company will regain compliance with the minimum stockholders’ equity requirement during the extension period.

Item 7.01 Regulation FD Disclosure.

On January 9, 2024, the Company issued a press release announcing that the U.S. Food and Drug Administration (the “FDA”) has cleared the investigational new drug application of CRB-601, a TGFβ blocking monoclonal antibody targeting the integrin αvβ8. A copy of the press release is attached hereto as Exhibit 99.1.

The information in this Current Report on Form 8-K under Item 7.01, including the information contained in Exhibit 99.1, is being furnished to the Securities and Exchange Commission (the “SEC”), and shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, and shall not be deemed to be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by a specific reference in such filing.

Item 8.01 Other Events.

FDA Clearance of Investigational New Drug application of CRB-601

On January 9, 2024, the Company announced that the FDA cleared the investigational new drug application of CRB-601, a TGFβ blocking monoclonal antibody targeting the integrin αvβ8. Pre-clinical data presented at the 38th Annual Meeting of the Society for Immunotherapy of Cancer (SITC) demonstrates CRB-601 overcame tumor immune exclusion and enhanced the activity of immune checkpoint inhibitors in vivo. The Company expects to enroll the first patient in a Phase 1 study in the first half of 2024.

Risk Factors

The Company is including the below update to its risk factors, for the purpose of supplementing and updating the disclosure contained in its Annual Report on Form 10-K for the fiscal year ended December 31, 2022, filed with the SEC on March 7, 2023 and its Quarterly Reports on Form 10-Q for the period ended March 31, 2023, filed with the SEC on May 9, 2023, for the period ended June 30, 2023, filed with the SEC on August 8, 2023, and for the period ended September 30, 2023, filed with the SEC on November 7, 2023.

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 (or Nasdaq) to maintain the listing of our common stock on The Nasdaq Capital Market.

On November 10, 2023, we received 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”). In that regard, we reported stockholders’ equity of $311,016 in our Quarterly Report on Form 10-Q for the period ended September 30, 2023 (we did not then, and do not now, 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, Nasdaq notified us that that it granted an extension until May 8, 2024 to regain compliance with the minimum stockholders’ equity requirement, conditioned upon achievement of certain milestones included in the plan of compliance previously submitted to Nasdaq, including a plan to raise additional capital. If

we fail to evidence compliance by May 8, 2024 and upon filing our periodic report for the quarter ending June 30, 2024, we may be subject to delisting. If Nasdaq determines to delist our securities, we will have the right to appeal to a Nasdaq hearings panel. There can be no assurance that we will be able to regain compliance with the Minimum Stockholders’ Equity Rule or maintain compliance with any other Nasdaq requirement in the future.

If our common stock were delisted from The Nasdaq Capital Market, trading of our common stock would most likely take place on an over-the-counter market established for unlisted securities, such as the OTCQB or the Pink Market maintained by OTC Markets Group Inc. An investor would likely find it less convenient to sell, or to obtain accurate quotations in seeking to buy, our common stock on an over-the-counter market, and many investors would likely not buy or sell our common stock due to difficulty in accessing over-the-counter markets, policies preventing them from trading in securities not listed on a national exchange or other reasons. In addition, as a delisted security, our common stock would be subject to SEC rules as a “penny stock,” which impose additional disclosure requirements on broker-dealers. The regulations relating to penny stocks, coupled with the typically higher cost per trade to the investor of penny stocks due to factors such as broker commissions generally representing a higher percentage of the price of a penny stock than of a higher-priced stock, would further limit the ability of investors to trade in our common stock. In addition, delisting would materially and adversely affect our ability to raise capital on terms acceptable to us, or at all, and may result in the potential loss of confidence by investors, suppliers, customers and employees and fewer business development opportunities. For these reasons and others, delisting would adversely affect the liquidity, trading volume and price of our common stock, causing the value of an investment in us to decrease and having an adverse effect on our business, financial condition and results of operations, including our ability to attract and retain qualified employees and to raise capital.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.