Company: INKT
Filing Date: 2025-07-15
Form Type: 424B5
Source: 0001193125-25-159014
Chunk: 2

Company: MiNK Therapeutics, Inc.
Filing Date: 2025-07-15
Form: 424B5
Chunk 2
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” registration process dated November 3, 2022. Under the shelf registration process, we may offer shares of our common stock from time to time under this prospectus
supplement and the accompanying prospectus at prices and on terms to be determined by market conditions at the time of offering. This prospectus supplement, the accompanying prospectus and the documents incorporated herein and therein by reference
include important information about us, the shares being offered and other information you should know before investing in our common stock.

You should rely only on this prospectus supplement, the accompanying prospectus and the information incorporated or deemed to be incorporated
by reference in this prospectus supplement and the accompanying prospectus. We have not, and the Sales Agent has not, authorized anyone to provide you with information that is in addition to or different from that contained or incorporated by
reference in this prospectus. We are not, and the Sales Agent is not, offering to sell these securities in any jurisdiction where the offer or sale is not permitted. You should not assume that the information contained or incorporated by reference
in this prospectus supplement and the accompanying prospectus is accurate as of any date other than as of the date of this prospectus supplement and the accompanying prospectus or in the case of the documents incorporated by reference, the date of
such documents regardless of the time of delivery of this prospectus supplement and the accompanying prospectus or any sale of our common stock. Our business, financial condition, liquidity, results of operations and prospects may have changed since
those dates.

As used in this prospectus supplement, unless the context otherwise requires, the terms “we,” “us,”
“our,” the “Company,” and “MiNK” mean, collectively, MiNK Therapeutics, Inc. and its subsidiaries and their predecessors.

This prospectus supplement also includes trademarks, tradenames and service marks that are the property of other organizations. Solely for
convenience, trademarks and tradenames referred to in this prospectus supplement appear without the and symbols, but those
references are not intended to indicate, in any way, that we will not assert, to the fullest extent under applicable law, our rights or that the applicable owner will not assert its rights, to these trademarks and tradenames.

S-ii

PROSPECTUS SUPPLEMENT SUMMARY

This summary highlights selected information about us, this offering and information appearing elsewhere in this prospectus supplement, in the accompanying prospectus and in the documents we incorporate by reference. This summary is not complete and does not contain