Company: INKT
Filing Date: 2025-08-14
Form Type: S-8
Source: 0001193125-25-180815
Chunk: 1

Company: MiNK Therapeutics, Inc.
Filing Date: 2025-08-14
Form: S-8
Chunk 1
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 Registration Statement on Form S-8,relating to the 2021 Equity Incentive Plan (the “2021 EIP”) of MiNK Therapeutics, Inc. (the “Registrant”) and the 2021 Employee Stock Purchase Plan of the Registrant (the “ESPP”), is being filed for the purpose of registering additional securities of the same class as other securities for which a Registration Statement on Form S-8has previously been filed and is effective. This filing does not relate to a capital-raising transaction, a public offering, or current issuance of any shares. Any shares covered by this Registration Statement may be delivered only in connection with awards or purchases made under these plans in accordance with their terms. Accordingly, pursuant to General Instruction E to Form S-8,this Registration Statement incorporates by reference the contents of the Registration Statements on Form S-8and any amendments thereto, File Nos. 333-281519, 333-273906and 333-266170, filed with the Securities and Exchange Commission (the “SEC”) on August 13, 2024, August 11, 2023 and July 15, 2022 by the Registrant, respectively, relating to the 2021 EIP and the ESPP. Item 8. Exhibits.

| Exhibit 
 4.1     
 4.2     |     | Amended and Restated Certificate of Incorporation (previously filed as Exhibit 3.1 to the Registrant’s Current Report on Form 8-K filed with the SEC on October 20, 2021 and incorporated herein by reference).                
 Certificate of Amendment to the Amended and Restated Certificate of Incorporation (previously filed as Exhibit 3.1 to the Registrant’s Current                                                                                 
 Report on Form 8-K filed with the SEC on January 21, 2025 and incorporated herein by reference).                                                                                                                               |
|:--------|:----|:-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 4.3     |     | Amended and Restated Bylaws (previously filed as Exhibit 3.2 to the Registrant’s Current Report on Form 8-K                                                                                                                    
 filed with the SEC on October 20, 2021 and incorporated herein by reference).                                                                                                                                                  |
| 4.4     |     | MiNK Therapeutics, Inc. 2021 Equity Incentive Plan (previously filed as Exhibit 10.6 to the registration statement on Form S-1/A filed on