INKT

SEC source: 0001193125-26-421529 · ownership.xml · nonDerivative · entry 2

Buell Jennifer · CIK 0001711184 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 74,195

F2 · shares: Represents sales of shares, as a consequence of the vesting of restricted stock units, solely to satisfy tax withholding obligations incurred upon vesting.

F3 · price: Represents a weighted average price. The shares were sold in multiple transactions at prices ranging from $10.33 to $10.61. The reporting person undertakes to provide to the Company, any shareholder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001193125-26-421529 · ownership.xml · derivative · entry 3

Buell Jennifer · CIK 0001711184 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,382

Underlying: Common Stock · 23,191 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of common stock of MiNK Therapeutics, Inc. (the "Company").

F4 · derivative.exercise_date: On October 11, 2023 the reporting person was granted RSUs under the Company's 2021 Equity Incentive Plan, vesting in three substantially equal annual installments on each of the third, fourth and fifth anniversaries of the grant date. This award was previously reported as covering 695,750 RSUs but was adjusted to 69,573 RSUs to reflect the 1-for-10 reverse stock split (rounding) that occurred on January 28, 2025.

F4 · derivative.expiration_date: On October 11, 2023 the reporting person was granted RSUs under the Company's 2021 Equity Incentive Plan, vesting in three substantially equal annual installments on each of the third, fourth and fifth anniversaries of the grant date. This award was previously reported as covering 695,750 RSUs but was adjusted to 69,573 RSUs to reflect the 1-for-10 reverse stock split (rounding) that occurred on January 28, 2025.

SEC source: 0001193125-26-421529 · ownership.xml · nonDerivative · entry 1

Buell Jennifer · CIK 0001711184 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 81,133

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of common stock of MiNK Therapeutics, Inc. (the "Company").

SEC source: 0001193125-26-379575 · ownership.xml · nonDerivative · entry 1

WIINBERG ULF · CIK 0001187314 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,929

F1 · price: The Reporting Person was granted restricted stock units ("RSUs"), which represent a contingent right to receive one share of Common Stock for each RSU. The RSUs were received in lieu of cash retainers for board and committee compensation. The RSUs will vest one month from the grant date.

SEC source: 0001193125-26-379524 · ownership.xml · nonDerivative · entry 1

Holcomb John Bradley · CIK 0002092279 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,691

F1 · price: The Reporting Person was granted restricted stock units ("RSUs"), which represent a contingent right to receive one share of Common Stock for each RSU. The RSUs were received in lieu of cash retainers for board and committee compensation. The RSUs will vest one month from the grant date.

SEC source: 0001193125-26-379522 · ownership.xml · nonDerivative · entry 1

Behner Peter · CIK 0001851420 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,404

F1 · price: The Reporting Person was granted restricted stock units ("RSUs"), which represent a contingent right to receive one share of Common Stock for each RSU. The RSUs were received in lieu of cash retainers for board and committee compensation. The RSUs will vest one month from the grant date.

SEC source: 0001193125-26-379518 · ownership.xml · nonDerivative · entry 1

Ryan Barbara · CIK 0001827169 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,591

F1 · price: The Reporting Person was granted restricted stock units ("RSUs"), which represent a contingent right to receive one share of Common Stock for each RSU. The RSUs were received in lieu of cash retainers for board and committee compensation. The RSUs will vest one month from the grant date.

SEC source: 0001193125-26-379513 · ownership.xml · nonDerivative · entry 1

Corvese Brian · CIK 0001393207 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 54,770

F1 · price: The Reporting Person was granted restricted stock units ("RSUs"), which represent a contingent right to receive one share of Common Stock for each RSU. The RSUs were received in lieu of cash retainers for board and committee compensation. The RSUs will vest one month from the grant date.

SEC source: 0001193125-26-260084 · ownership.xml · nonDerivative · entry 2

Ryan Barbara · CIK 0001827169 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,969

F1 · security: The reported transaction reflects the sale of Common Stock received by Ms. Ryan as compensation for services rendered as a member of the MiNK Therapeutic Inc.'s Board of Directors.

SEC source: 0001193125-26-260084 · ownership.xml · nonDerivative · entry 1

Ryan Barbara · CIK 0001827169 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,969

F1 · security: The reported transaction reflects the sale of Common Stock received by Ms. Ryan as compensation for services rendered as a member of the MiNK Therapeutic Inc.'s Board of Directors.

SEC source: 0001193125-26-253466 · ownership.xml · nonDerivative · entry 2

Behner Peter · CIK 0001851420 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,919

F1 · price: The Reporting Person was granted restricted stock units ("RSUs"), which represent a contingent right to receive one share of Common Stock for each RSU. The RSUs were received in lieu of cash retainers for board and committee compensation. The RSUs will vest one month from the grant date.

SEC source: 0001193125-26-253461 · ownership.xml · nonDerivative · entry 2

WIINBERG ULF · CIK 0001187314 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,650

F1 · price: The Reporting Person was granted restricted stock units ("RSUs"), which represent a contingent right to receive one share of Common Stock for each RSU. The RSUs were received in lieu of cash retainers for board and committee compensation. The RSUs will vest one month from the grant date.

SEC source: 0001193125-26-253468 · ownership.xml · nonDerivative · entry 2

Corvese Brian · CIK 0001393207 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 53,137

F1 · price: The Reporting Person was granted restricted stock units ("RSUs"), which represent a contingent right to receive one share of Common Stock for each RSU. The RSUs were received in lieu of cash retainers for board and committee compensation. The RSUs will vest one month from the grant date.

SEC source: 0001193125-26-253470 · ownership.xml · nonDerivative · entry 2

Ryan Barbara · CIK 0001827169 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,469

F1 · price: The Reporting Person was granted restricted stock units ("RSUs"), which represent a contingent right to receive one share of Common Stock for each RSU. The RSUs were received in lieu of cash retainers for board and committee compensation. The RSUs will vest one month from the grant date.

SEC source: 0001193125-26-253474 · ownership.xml · nonDerivative · entry 2

Holcomb John Bradley · CIK 0002092279 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,458

F1 · price: The Reporting Person was granted restricted stock units ("RSUs"), which represent a contingent right to receive one share of Common Stock for each RSU. The RSUs were received in lieu of cash retainers for board and committee compensation. The RSUs will vest one month from the grant date.

SEC source: 0001193125-26-102581 · ownership.xml · nonDerivative · entry 4

Ryan Barbara · CIK 0001827169 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,406

F1 · security: The reported transaction reflects the sale of Common Stock received by Ms. Ryan as compensation for services rendered as a member of the MiNK Therapeutic Inc.'s Board of Directors.

SEC source: 0001193125-26-102581 · ownership.xml · nonDerivative · entry 3

Ryan Barbara · CIK 0001827169 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,906

F1 · security: The reported transaction reflects the sale of Common Stock received by Ms. Ryan as compensation for services rendered as a member of the MiNK Therapeutic Inc.'s Board of Directors.

SEC source: 0001193125-26-102581 · ownership.xml · nonDerivative · entry 2

Ryan Barbara · CIK 0001827169 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,406

F1 · security: The reported transaction reflects the sale of Common Stock received by Ms. Ryan as compensation for services rendered as a member of the MiNK Therapeutic Inc.'s Board of Directors.

SEC source: 0001193125-26-102581 · ownership.xml · nonDerivative · entry 1

Ryan Barbara · CIK 0001827169 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,706

F1 · security: The reported transaction reflects the sale of Common Stock received by Ms. Ryan as compensation for services rendered as a member of the MiNK Therapeutic Inc.'s Board of Directors.

SEC source: 0001193125-26-091707 · ownership.xml · nonDerivative · entry 2

Ryan Barbara · CIK 0001827169 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,906

SEC source: 0001193125-26-253466 · ownership.xml · nonDerivative · entry 1

Behner Peter · CIK 0001851420 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,606

F2 · price: Due to an administrative error, the RSUs for Q1 2026 Board and committee compensation were not filed timely.

SEC source: 0001193125-26-253461 · ownership.xml · nonDerivative · entry 1

WIINBERG ULF · CIK 0001187314 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,519

F3 · price: Due to an administrative error, the RSUs for Q1 2026 Board and committee compensation were not filed timely.

SEC source: 0001193125-26-253468 · ownership.xml · nonDerivative · entry 1

Corvese Brian · CIK 0001393207 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 51,693

F2 · price: Due to an administrative error, the RSUs for Q1 2026 Board and committee compensation were not filed timely.

SEC source: 0001193125-26-253470 · ownership.xml · nonDerivative · entry 1

Ryan Barbara · CIK 0001827169 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,035

F2 · price: Due to an administrative error, the RSUs for Q1 2026 Board and committee compensation were not filed timely.

SEC source: 0001193125-26-253474 · ownership.xml · nonDerivative · entry 1

Holcomb John Bradley · CIK 0002092279 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,367

F2 · price: Due to an administrative error, the RSUs for Q1 2026 Board and committee compensation were not filed timely.

SEC source: 0001193125-26-091707 · ownership.xml · nonDerivative · entry 1

Ryan Barbara · CIK 0001827169 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,006

SEC source: 0001193125-26-004769 · ownership.xml · derivative · entry 1

Behner Peter · CIK 0001851420 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,395

Underlying: Common Stock · 5,395 shares

Expires 2036-01-02

F1 · derivative.exercise_date: Option vests on February 2, 2026, provided that the Reporting Person continues to serve on the Issuer's Board of Directors through such date.

SEC source: 0001193125-26-004786 · ownership.xml · derivative · entry 1

WIINBERG ULF · CIK 0001187314 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,395

Underlying: Common Stock · 5,395 shares

Expires 2036-01-02

F1 · derivative.exercise_date: Option vests on February 2, 2026, provided that the Reporting Person continues to serve on the Issuer's Board of Directors through such date.

SEC source: 0001193125-26-004776 · ownership.xml · derivative · entry 1

Corvese Brian · CIK 0001393207 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,395

Underlying: Common Stock · 5,395 shares

Expires 2036-01-02

F1 · derivative.exercise_date: Option vests on February 2, 2026, provided that the Reporting Person continues to serve on the Issuer's Board of Directors through such date.

SEC source: 0001193125-26-004799 · ownership.xml · derivative · entry 2

Buell Jennifer · CIK 0001711184 · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50,000

Underlying: Common Stock · 50,000 shares

Expires 2036-01-02

F3 · derivative.exercise_date: The option vests over a three-year period, with one-third of the options vesting on the one-year anniversary of the date of grant, with the remainder vesting in eight equal quarterly installments thereafter.

SEC source: 0001193125-26-004799 · ownership.xml · nonDerivative · entry 1

Buell Jennifer · CIK 0001711184 · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 67,966

F1 · security: Reflects the executive's 2025 performance bonus award paid in MiNK Therapeutics, Inc. common stock. The stock issued is fully-vested on the date of issuance but is subject to a lockup restriction with 100% of the award released on February 2, 2026.

F2 · price: $11.12 was the fair market value of MiNK Therapeutics, Inc. Common Stock on January 2, 2026, the stock issuance date.

SEC source: 0001193125-26-004779 · ownership.xml · derivative · entry 1

Ryan Barbara · CIK 0001827169 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,395

Underlying: Common Stock · 5,395 shares

Expires 2036-01-02

F1 · derivative.exercise_date: Option vests on February 2, 2026, provided that the Reporting Person continues to serve on the Issuer's Board of Directors through such date.

SEC source: 0001193125-26-012914 · ownership.xml · nonDerivative · entry 1

Buell Jennifer · CIK 0001711184 · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 57,942

F1 · shares: These shares were withheld for payment of the withholding taxes in relation to the stock issued to the reporting person on January 2, 2026, as previously reported on the Form 4 filed on January 6, 2026 (the "Original Form 4"). The Original Form 4 did not include the shares withheld for payment of withholding taxes in Table I. This amendment is being filed to correct this error.

SEC source: 0001193125-25-306676 · ownership.xml · nonDerivative · entry 1

Kadlec Robert Peter · CIK 0002047073 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,126

F1 · price: The Reporting Person was granted restricted stock units ("RSUs"), which represent a contingent right to receive one share of Common Stock for each RSU. The RSUs were received in lieu of cash retainers for board and committee compensation. The RSUs will vest one month from the grant date.

SEC source: 0001193125-25-306680 · ownership.xml · nonDerivative · entry 1

Behner Peter · CIK 0001851420 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,115

F1 · price: The Reporting Person was granted restricted stock units ("RSUs"), which represent a contingent right to receive one share of Common Stock for each RSU. The RSUs were received in lieu of cash retainers for board and committee compensation. The RSUs will vest one month from the grant date.

SEC source: 0001193125-25-306675 · ownership.xml · nonDerivative · entry 1

WIINBERG ULF · CIK 0001187314 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,234

F1 · price: The Reporting Person was granted restricted stock units ("RSUs"), which represent a contingent right to receive one share of Common Stock for each RSU. The RSUs were received in lieu of cash retainers for board and committee compensation. The RSUs will vest one month from the grant date.

SEC source: 0001193125-25-306681 · ownership.xml · nonDerivative · entry 1

Corvese Brian · CIK 0001393207 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50,053

F1 · price: The Reporting Person was granted restricted stock units ("RSUs"), which represent a contingent right to receive one share of Common Stock for each RSU. The RSUs were received in lieu of cash retainers for board and committee compensation. The RSUs will vest one month from the grant date.

SEC source: 0001193125-25-306678 · ownership.xml · nonDerivative · entry 1

Ryan Barbara · CIK 0001827169 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,406

F1 · price: The Reporting Person was granted restricted stock units ("RSUs"), which represent a contingent right to receive one share of Common Stock for each RSU. The RSUs were received in lieu of cash retainers for board and committee compensation. The RSUs will vest one month from the grant date.

SEC source: 0001193125-25-306679 · ownership.xml · nonDerivative · entry 1

Holcomb John Bradley · CIK 0002092279 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,128

F1 · price: The Reporting Person was granted restricted stock units ("RSUs"), which represent a contingent right to receive one share of Common Stock for each RSU. The RSUs were received in lieu of cash retainers for board and committee compensation. The RSUs will vest one month from the grant date.

SEC source: 0001193125-26-197482 · ownership.xml · derivative · entry 1

Holcomb John Bradley · CIK 0002092279 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,174

Underlying: Common Stock · 4,174 shares

Expires 2035-09-23

F1 · derivative.exercise_date: The Stock Options were awarded in accordance with the MiNK Therapeutics Inc. 2021 Amended and Restated Equity Incentive Plan on September 23, 2025 and will vest in three equal annual installments on each of September 23, 2026, 2027 and 2028 (provided Dr. Holcomb maintains a service relationship with the company through each such vesting date).

SEC source: 0001193125-25-201318 · ownership.xml · derivative · entry 1

Kadlec Robert Peter · CIK 0002047073 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,225

Underlying: Common Stock · 3,225 shares

Expires 2035-09-09

F1 · derivative.exercise_date: The option vests in full on the one-year anniversary of the date of grant, provided that the Reporting Person continues to serve on the Issuer's Board of Directors through such date.

SEC source: 0001193125-25-201317 · ownership.xml · derivative · entry 1

Behner Peter · CIK 0001851420 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,225

Underlying: Common Stock · 3,225 shares

Expires 2035-09-09

F1 · derivative.exercise_date: The option vests in full on the one-year anniversary of the date of grant, provided that the Reporting Person continues to serve on the Issuer's Board of Directors through such date.

SEC source: 0001193125-25-201314 · ownership.xml · derivative · entry 1

WIINBERG ULF · CIK 0001187314 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,225

Underlying: Common Stock · 3,225 shares

Expires 2035-09-09

F1 · derivative.exercise_date: The option vests in full on the one-year anniversary of the date of grant, provided that the Reporting Person continues to serve on the Issuer's Board of Directors through such date.

SEC source: 0001193125-25-201315 · ownership.xml · derivative · entry 1

Corvese Brian · CIK 0001393207 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,225

Underlying: Common Stock · 3,225 shares

Expires 2035-09-09

F1 · derivative.exercise_date: The option vests in full on the one-year anniversary of the date of grant, provided that the Reporting Person continues to serve on the Issuer's Board of Directors through such date.

SEC source: 0001193125-25-201376 · ownership.xml · derivative · entry 2

Buell Jennifer · CIK 0001711184 · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50,000

Underlying: Common Stock · 50,000 shares

Expires 2035-09-09

F3 · derivative.exercise_date: The option vests over a three-year period, with one-third of the options vesting on the one-year anniversary of the date of grant, with the remainder vesting in eight equal quarterly installments thereafter, provided that the Reporting Person continues to serve on the Issuer's Board of Directors through such date.

SEC source: 0001193125-25-201376 · ownership.xml · nonDerivative · entry 1

Buell Jennifer · CIK 0001711184 · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 41,913

F1 · security: Reflects the executive's 2024 performance bonus award paid in MiNK Therapeutics, Inc. common stock. The stock issued is fully-vested on the date of issuance but is subject to a lockup restriction with 100% of the award released on October 9, 2025.

F2 · price: $15.36 was the fair market value of MiNK Therapeutics, Inc. Common Stock on September 9, 2025, the stock issuance date.

SEC source: 0001193125-25-201313 · ownership.xml · derivative · entry 1

Ryan Barbara · CIK 0001827169 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,225

Underlying: Common Stock · 3,225 shares

Expires 2035-09-09

F1 · derivative.exercise_date: The option vests in full on the one-year anniversary of the date of grant, provided that the Reporting Person continues to serve on the Issuer's Board of Directors through such date.

SEC source: 0001193125-25-230098 · ownership.xml · nonDerivative · entry 1

Buell Jennifer · CIK 0001711184 · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 36,492

F1 · shares: These shares were withheld for payment of the withholding taxes in relation to the stock issued to reporting person on September 9, 2025, as previously reported on the Form 4 filed on September 11, 2025 (the "Original Form 4"). The Original Form 4 did not include the shares withheld for payment of withholding taxes in Table I. This amendment is being filed to correct this error.

SEC source: 0001193125-25-195091 · ownership.xml · nonDerivative · entry 1

Kadlec Robert Peter · CIK 0002047073 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,908

F1 · price: The Reporting Person was granted restricted stock units ("RSUs"), which represent a contingent right to receive one share of Common Stock for each RSU. The RSUs were received in lieu of cash retainers for board and committee compensation. The RSUs will vest one month from the grant date.

SEC source: 0000950170-25-112882 · ownership.xml · nonDerivative · entry 1

Behner Peter · CIK 0001851420 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,649

F1 · price: The Reporting Person was granted restricted stock units ("RSUs"), which represent a contingent right to receive one share of Common Stock for each RSU. The RSUs were received in lieu of cash retainers for board and committee compensation. The RSUs will vest one month from the grant date.