Company: INKT
Filing Date: 2025-08-14
Form Type: S-8
Source: 0001193125-25-180815
Chunk: 2

Company: MiNK Therapeutics, Inc.
Filing Date: 2025-08-14
Form: S-8
Chunk 2
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 October 12, 2021 (File No. 333-259503) and incorporated herein by reference).        |
| 4.5     |     | MiNK Therapeutics, Inc. 2021 Employee Stock Purchase Plan (previously filed as Exhibit 10.7 to the registration statement on Form S-1/A filed on October 12, 2021 (File No. 333-259503) and incorporated herein by reference). |

| 5.1  |     | Opinion of Latham & Watkins LLP, counsel to the Registrant*                     |
| 23.1 |     | Consent of KPMG LLP*                                                            |
| 23.2 |     | Consent of Latham & Watkins LLP (included in the opinion filed as Exhibit 5.1)* |
| 24.1 |     | Powers of Attorney (included on the signature page in Part II)*                 |
| 107  |     | Filing Fee Table*                                                               |

| * | Filed herewith. |

SIGNATURES Pursuant to the requirements of the Securities Act of 1933, the Registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of New York, NY, on this 14th day of August, 2025.

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

POWER OF ATTORNEY Each person whose signature appears below constitutes and appoints Jennifer S. Buell, Ph.D. and Christine M. Klaskin, and each of them singly, his or her true and lawful attorneys-in-factand agents with full power of substitution and resubstitution, for him or her and in his or her name, place and stead, in any and all capacities, to sign any and all amendments (including post-effective amendments) to this Registration Statement on Form S-8and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-factand agents full power and authority to