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

Date of Report (Date of earliest event reported): March 22, 2024

MATINAS BIOPHARMA HOLDINGS, INC.

(Exact name of registrant as specified in its charter)

Registrant’s telephone number, including area code: (908) 484-8805

Not Applicable

(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 (see General Instruction A.2. below):

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 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).

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. ☐

On March 22, 2024, Matinas BioPharma Holdings, Inc. (the “Company”) announced the complete clinical response in three patients with serious invasive fusarium infection following treatment with the Company’s MAT2203 product candidate, an oral formulation of the antifungal amphotericin B. A copy of the press release is furnished as Exhibit 99.1 hereto and incorporated herein by reference.

The information in this Item 7.01 and Exhibit 99.1 attached hereto shall not be deemed “filed” for 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, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

On March 22, 2024, the Company announced the complete clinical response in three patients with serious invasive fusarium infection following treatment with MAT2203. All three patients were enrolled in the Company’s Compassionate/Expanded Use Access Program and were treated by Marisa H. Miceli, MD, Professor of Medicine, Specializing in Fungal Infections and Transplant Diseases, Division of Infectious Diseases, Internal Medicine, at the University of Michigan.

A 40-year-old female patient with extensive burns on more than 34% of her body developed complications of a urinary tract infection, ventilator-associated pneumonia, and C. difficile colitis. Her treatment required multiple surgical operations for debridement of wounds and skin grafting and a soft tissue fusarium infection of the left foot at a skin grafting site developed, which was resistant to voriconazole. Treatment with IV-amphotericin B led to nephrotoxicity and the fusarium infection showed resistance to all other antifungals. The patient was transitioned to oral MAT2203 for two weeks, which led to clinical resolution of her fungal infection.

A 48-year-old female renal transplant recipient with a weakened immune system developed chronic non-healing leg wounds. A fungal skin lesion culture was positive for an azole-resistant fusarium infection, which was only susceptible to amphotericin B. The patient was unable to receive long-term treatment with IV-amphotericin B due to an underlying condition, including risk for development of nephrotoxicity, and was transitioned to oral MAT2203. The patient began to show clinical improvement following two weeks of oral MAT2203 treatment and the skin wounds completely healed following six months of MAT2203 treatment.

A 69-year-old man with coronary artery disease, hyperlipidemia, hypertension, emphysema, aortic valve replacement, with small cell lung cancer being treated with chemotherapy, developed fever. CT scans exhibited a left upper lobe consolidation of the lung with a culture showing positive for an azole-resistant fusarium species. The patient was treated with oral MAT2203 on an out-patient basis for six months. Repeat CT scans following MAT2203 treatment showed improvement in fungal infection, with some new nodules due to progression of malignancy.

The outcome of these three patients with fusarium infection are included in the 19 total patients discussed in the Company’s previous update to the MAT2203 Compassionate/Expanded Use Access Program; however two of the three patients had not yet achieved complete clinical resolution at the time of that report.

Forward- Looking Statements

This Current Report on Form 8-K contains certain forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934 and Private Securities Litigation Reform Act, as amended, including those relating to the Company’s strategic focus and the future development of its product candidates, including MAT2203, the anticipated timing of regulatory submissions, the anticipated timing of clinical studies, the anticipated timing of regulatory interactions, the Company’s ability to identify and pursue development and partnership opportunities for its products or platform delivery technology on favorable terms, if at all, and the ability to obtain required regulatory approval and other statements that are predictive in nature, that depend upon or refer to future events or conditions. All statements other than statements of historical fact are statements that could be forward-looking statements.

These statements may be identified by the use of forward-looking expressions, including, but not limited to, “expects,” “anticipates,” “intends,” “plans,” “could,” “believes,” “estimates” and similar expressions. These statements involve known and unknown risks, uncertainties and other factors which may cause actual results to be materially different from any future results expressed or implied by the forward-looking statements. Forward-looking statements are subject to a number of risks and uncertainties, including, but not limited to, the Company’s ability to obtain additional capital to meet its liquidity needs on acceptable terms, or at all, including the additional capital which will be necessary to complete the clinical trials of our product candidates; the ability to successfully complete research and further development and commercialization of our product candidates; the uncertainties inherent in clinical testing; the timing, cost and uncertainty of obtaining regulatory approvals; our ability to protect the Company’s intellectual property; the loss of any executive officers or key personnel or consultants; competition; changes in the regulatory landscape or the imposition of regulations that affect the Company’s products; and the other factors listed under “Risk Factors” in our filings with the SEC, including Forms 10-K, 10-Q and 8-K. Investors are cautioned not to place undue reliance on such forward-looking statements, which speak only as of the date hereof. Except as may be required by law, the Company does not undertake any obligation to release publicly any revisions to such forward-looking statements to reflect events or circumstances after the date hereof or to reflect the occurrence of unanticipated events. The Company’s product candidates are all in a development stage and are not available for sale or use.

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.