Form 8-K

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): May 15, 2025

_______________________________

MiNK Therapeutics, Inc.

(Exact name of registrant as specified in its charter)

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Delaware	001-40908	82-2142067
(State or Other Jurisdiction of Incorporation)	(Commission File Number)	(I.R.S. Employer Identification No.)

149 Fifth Avenue, Suite 500

New York, New York 10010

(Address of Principal Executive Offices) (Zip Code)

(212) 994-8250

(Registrant's telephone number, including area code)

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:

☐	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

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, $0.00001 par value per share	INKT	The NASDAQ Capital Market

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 2.02. Results of Operations and Financial Condition.

On May 15, 2025, MiNK Therapeutics, Inc. announced its financial results for the quarter ended March 31, 2025. In connection with the announcement, the Company issued a press release, which is being furnished as Exhibit 99.1 to this current report on Form 8-K.

The information set forth under Item 2.02 and in Exhibit 99.1 attached hereto is intended to be furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934 or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, except as expressly set forth by specific reference in such filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibit

The following exhibit is furnished herewith:


99.1		Press Release dated May 15, 2025
104		Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURE

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.

	MiNK Therapeutics, Inc.


Date: May 15, 2025	By:	/s/ Christine M. Klaskin
		Christine M. Klaskin
		Principal Financial Officer

EXHIBIT 99.1

MiNK Therapeutics Reports Q1 2025 Results and Highlights Clinical & Strategic Progress

Clinical data builds with CR in testicular cancer, enrollment in Phase 2 gastric trial, and new data in PD-1–resistant tumors

Near-term capital transactions poised to bolster liquidity

NEW YORK, May 15, 2025 (GLOBE NEWSWIRE) -- MiNK Therapeutics, Inc. (NASDAQ: INKT), a clinical-stage biopharmaceutical company pioneering the development of allogeneic, off-the-shelf invariant natural killer T (iNKT) cell therapies, today announced its financial results for the first quarter of 2025 and provided a business update highlighting continued clinical progress and strategic developments across its iNKT platform. The company will host a conference call and webcast today at 8:30 a.m. ET.

“This quarter marks a turning point in the evolution of MiNK. Our platform is demonstrating the power of iNKT cells to transform immune responses in both cancer and inflammatory diseases,” said Jennifer Buell, Ph.D., President and Chief Executive Officer of MiNK Therapeutics. “With late-stage strategic discussions underway across oncology, immunology, and next-generation engineered cell therapies, MiNK is positioned to unlock the full value of our technology. These partnerships—alongside our clinical advances and expanded access to non-dilutive capital—will allow us to deliver off-the-shelf iNKT therapies to patients with urgency, focus, and scale.”

Key Highlights from Q1 2025

Strategic and Business Development

Advanced discussions on distinct transactions aligned with core areas of MiNK’s platform--oncology, immune-mediated diseases, and next-generation engineered cell therapies--designed to broaden MiNK’s reach while preserving optionality and shareholder value.

Clinical Progress in Cancer, Immunity, and Inflammation

MiNK continues to expand the clinical and strategic value of its iNKT platform across solid tumors and immune-mediated diseases.

At AACR IO and ASCO GI, MiNK presented new data showing that agenT-797, in combination with checkpoint inhibitors and chemotherapy, drives rapid tumor infiltration, CD8+ T cell activation, and immune reprogramming in PD-1–resistant gastroesophageal cancers—a population with limited therapeutic options.
A Phase 2 trial (NCT06251973), led by Memorial Sloan Kettering Cancer Center, is actively enrolling in second-line gastric cancer.
A peer-reviewed publication expected in the first half of 2025 will detail a complete remission in a patient with metastatic testicular cancer treated in MiNK’s Phase 1 trial with a single infusion of agenT-797—achieved without lymphodepletion, HLA matching, or toxicity. This case reinforces the differentiated potential of MiNK’s off-the-shelf iNKT platform in solid tumors that are refractory to standard treatments and immunotherapy.
In ARDS, MiNK’s iNKT therapy continues to demonstrate survival benefit and inflammatory control, as published in Nature Communications and presented at the American Thoracic Society. The company is pursuing broader patient access through clinical trials and compassionate use programs.
In parallel, MiNK has been selected for probable funding by NIAID to support its allogeneic iNKT program in GvHD, with a formal award expected by June 2025. This recognition adds a critical source of non-dilutive capital and external validation of MiNK’s leadership in inflammation and immune modulation.

Together, these programs represent high-value expansion opportunities across MiNK’s core verticals: solid tumors, inflammatory disease, and next-generation engineered cell therapies.

Financial Highlights

MiNK ended the quarter with a cash balance of $3.2 million. Cash used in operations for the three months ended March 31, 2025 was $1.3 million compared to $2.5 million for the same period in 2024. Net loss for the first quarter of 2025 was $2.8 million, or $0.70 per share, compared to $3.8 million, or $1.10 per share, for the first quarter of 2024.

Summary Consolidated Financial Information

Condensed Consolidated Balance Sheet Data
(in thousands)
(unaudited)

	March 31, 2025			December 31, 2024

Cash and cash equivalents	$	3,235		$	4,577
Total assets		4,267			5,721


Other Financial Information
(in thousands)
(unaudited)
	Three months ended March 31,
		2025			2024

Cash used in operations	$	1,341		$	2,542
Non-cash expenses		835			650



Condensed Consolidated Statements of Operations Data
(in thousands, except per share data)
(unaudited)

	Three months ended March 31,
		2025			2024

Operating expenses:
Research and development	$	1,262		$	2,550
General and administrative		1,271			1,280
Change in fair value of related party note		168

Operating loss		2,701			3,830

Other income, net		66			(17	)

Net loss	$	2,767		$	3,813

Per common share data, basic and diluted:
Net loss	$	(0.70	)	$	(1.10	)
Weighted average number of common shares outstanding, basic and diluted		3,965			3,464

Conference Call

Dial-in numbers: 646-307-1963 (New York), 800-715-9871 (USA & Canada)

Conference ID: 9822477

Webcast

A live webcast and replay of the conference call will be accessible from the Events & Presentations page of the Company’s website at https://investor.minktherapeutics.com/events-and-presentations and via https://edge.media-server.com/mmc/p/jgzwe9ny/.

About MiNK Therapeutics

MiNK Therapeutics is a clinical-stage biopharmaceutical company pioneering the discovery, development, and commercialization of allogeneic invariant natural killer T (iNKT) cell therapies to treat cancer and other immune-mediated diseases. MiNK is advancing a pipeline of both native and next generation engineered iNKT programs, with a platform designed to facilitate scalable and reproducible manufacturing for off-the-shelf delivery. The company is headquartered in New York, NY. For more information, visit https://minktherapeutics.com or @MiNK_iNKT. Information that may be important to investors will be routinely posted on our website and social media channels.

About AgenT-797

AgenT-797 is an allogeneic invariant natural killer T (iNKT) cell therapy that harnesses the dual power of innate and adaptive immunity. iNKTs function as “master regulators,” combining the cytotoxic capabilities of NK cells with T-cell–like antigen recognition and memory. This unique biology enables a robust, pathogen-agnostic immune response that can be directed against hard-to-treat tumors.

Manufactured by MiNK Therapeutics in Lexington, MA, agenT-797 is a scalable, off-the-shelf product designed to provide accessible, transformative treatment options. In clinical trials, agenT-797 can bolster peripheral memory T-cell activation, enhance tumor infiltration, and potentially improve outcomes for patients with solid cancers (Cytryn et al. AACR IO 2024, Oncogene. 2024) and to combat inflammation in critically ill patients with severe respiratory pathology (Nature Communications. 2024).

Forward Looking Statements

This press release contains forward-looking statements that are made pursuant to the safe harbor provisions of the federal securities laws, including statements regarding the therapeutic potential, anticipated benefit, plans and timelines of iNKT cells, as well as the collaboration between MiNK and Agenus. These forward-looking statements are subject to risks and uncertainties that could cause actual results to differ materially. These forward-looking statements are subject to risks and uncertainties, including the factors described under the Risk Factors section of the most recent Form 10-K, Form 10-Q and the S-1 Registration Statement filed with the SEC. MiNK cautions investors not to place considerable reliance on the forward-looking statements contained in this release. These statements speak only as of the date of this press release, and MiNK and Agenus with no obligation to update or revise the statements, other than to the extent required by law. All forward-looking statements are expressly qualified in their entirety by this cautionary statement.

Investor Contact

917-362-1370

[email protected]

Media Contact

781-674-4428

[email protected]