INKT · MiNK Therapeutics, Inc. · Insider Trading

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

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.

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

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.

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

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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

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

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

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

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

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.

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

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

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.

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.

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.

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.

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.

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.

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).

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.