Company: INKT
Filing Date: 2025-11-07
Form Type: S-3
Source: 0001193125-25-272532
Chunk: 53

Company: MiNK Therapeutics, Inc.
Filing Date: 2025-11-07
Form: S-3
Chunk 53
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 will be governed by the final adjudication of such issue.

(9) If and when applicable, the undersigned registrant hereby undertakes to file an application for the purpose of determining
the eligibility of the trustee to act under subsection (a) of Section 310 of the Trust Indenture Act in accordance with the rules and regulations prescribed by the Commission under Section 305(b)(2) of the Trust Indenture Act.

II-5

SIGNATURES Pursuant to the requirements of the Securities Act of 1933, as amended, the registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-3and has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of New York, New York, on the 6th day of November, 2025.

| MINK THERAPEUTICS, INC. |     |                                                 |
| By:                     |     | /s/ Jennifer S. Buell, Ph.D.                    |
| Name:                   |     | Jennifer S. Buell, Ph.D.                        |
| Title:                  |     | President, Chief Executive Officer and Director |

II-6

POWER OF ATTORNEY KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Jennifer S. Buell, Ph.D. and Christine M. Klaskin, as his or her true and lawful attorney-in-factand agent, with full power of substitution and revocation, for him or her and in his or her name, place and stead, in any and all capacities, to execute any or all amendments including any post-effective amendments and supplements to this Registration Statement, and any additional Registration Statement filed pursuant to Rule 462(b), and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorney-in-factand agent full power and authority to do and perform each and every act and thing requisite and necessary to be done, as fully to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that said attorney-in-factand agent, or his or her substitute or substitutes, may lawfully do or cause to be done by virtue hereof. Pursuant to the requirements of the Securities Act of 1933, as amended, this registration statement has been signed by