Sec Form 3 Filing - ARMEN GARO H @ MiNK Therapeutics, Inc. - 2021-10-13

FORM 3 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person ARMEN GARO H 2. Issuer Name and Ticker or Trading Symbol MiNK Therapeutics, Inc. [ INKT] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 149 FIFTH AVENUE, SUITE 500 3. Date of Earliest Transaction (MM/DD/YY) 10/13/2021 (Street) NEW YORK, NY10010 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 2,226,400 D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Stock Option (Right to Buy) $ 0.02 ( 1 ) 11/19/2028 Common Stock 27,830 D S tock Option (Right to Buy) $ 0.02 ( 2 ) 11/19/2028 Common Stock 27,830 D Stock Option (Right to Buy) $ 0.01 ( 3 ) 01/30/2030 Common Stock 695,750 D Stock Option (Right to Buy) $ 3.03 ( 4 ) 02/11/2021 Common Stock 834,900 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other ARMEN GARO H 149 FIFTH AVENUE, SUITE 500 NEW YORK, NY10010 X Signatures /s/ Christine Klaskin, attorney-in-fact 10/20/2021 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Represents an option to purchase shares of the common stock, which vests as to 30% of the underlying shares on November 19, 2021 and as to the remaining 70% of the underlying shares on November 19, 2022, in each case, generally subject to continued employment. ( 2 )Represents an option to purchase shares of the common stock, which vests on or about December 31, 2022, as to a portion of the underlying shares as determined by the achievement of certain milestones between January 1, 2019 and December 31, 2022, with 20% vesting upon achievement of five milestones, and an additional 5% vesting for each. ( 3 )Represents an option to purchase shares of the common stock, which vested as to 33% of the underlying shares on January 30, 2021, and with respect to the remainder, in eight equal quarterly installments thereafter, in each case, generally subject to continued employment. ( 4 )Represents an option to purchase shares of the common stock, which vests as to 33% of the underlying shares on February 11, 2022, and with respect to the remainder, in eight equal quarterly installments thereafter, in each case, generally subject to continued employment.

Remarks: Exhibit List: Exhibit 24 - Power of Attorney

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

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