Company: INKT
Filing Date: 2025-12-10
Form Type: S-3/A
Source: 0001193125-25-314252
Chunk: 48

Company: MiNK Therapeutics, Inc.
Filing Date: 2025-12-10
Form: S-3/A
Chunk 48
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us supplement. We are not, however, incorporating by reference any documents or portions thereof, whether specifically
listed above or filed in the future, that are not deemed “filed” with the SEC, including any information furnished pursuant to Items 2.02 or 7.01 of Form 8-K or related exhibits furnished pursuant
to Item 9.01 of Form 8-K. The reports and documents specifically listed above or filed in the future (excluding any information furnished to, rather than filed with, the SEC) are deemed to be part of this
prospectus supplement and accompanying prospectus from the date of the filing of such reports and documents.

You may request a free copy
of any of the documents incorporated by reference in this prospectus supplement and the accompanying prospectus (other than exhibits, unless they are specifically incorporated by reference in the documents) by writing or telephoning us at the
following address:

MiNK Therapeutics, Inc.

149 Fifth Avenue, Suite 500

New York, NY 10010

Attention: Investor Relations

Telephone: (212) 994-8250

Exhibits to the filings will not be sent, however, unless those exhibits have specifically been incorporated by reference in this
prospectus supplement and the accompanying prospectus.

S-13

Up to $50,000,000 of Common Stock

Prospectus Supplement

Sole Sales Agent

B. RILEY SECURITIES

, 2025

PART II INFORMATION NOT REQUIRED IN PROSPECTUS Item 14. Other Expenses of Issuance and Distribution. Set forth below is an estimate (except in the case of the registration fee) of the amount of fees and expenses to be incurred in connection with the issuance and distribution of the offered securities registered hereby, other than underwriting discounts and commission, if any, incurred in connection with the sale of the offered securities. All such amounts will be borne by MiNK Therapeutics, Inc.

| SEC Registration fee             |     | $ | 15,864.92(1 | ) |
| FINRA filing fee                 |     |   | (2          | ) |
| Legal fees and expenses          |     |   | (2          | ) |
| Accounting fees and expenses     |     |   | (2          | ) |
| Transfer agent fees and expenses |     |   | (2          | ) |
| Printing expenses                |     |   | (2          | ) |
| Warrant agent fees and