Adicet Bio, Inc.

As required by Section 953(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act and Item 402(v) of Regulation S-K, we are providing information about the relationship between executive compensation actually paid to our principal executive officer (PEO) and the other named executive officers (NEOs) (as calculated in accordance with Item 402(v) of Regulation S-K).

(1) Includes amounts paid to Chen Schor, our PEO in 2024, 2023 and 2022.

(2) The amounts reported represent the “compensation actually paid” to our PEO, computed in accordance with Item 402(v) of Regulation S-K, but do not reflect the actual amount of compensation earned by or paid to our PEO in the applicable year. In accordance with Item 402(v) of Regulation S-K, the following adjustments were made to the amount reported for our PEO in the “Total” column of the Summary Compensation Table for each year to calculate compensation actually paid.

(a) The amounts reported represent the sum of the amounts reported in the “Stock Awards” and “Option Awards” columns of the Summary Compensation Table for the applicable fiscal year.

(b) The equity award adjustments for each fiscal year include the following: (i) the addition (or subtraction, if applicable) of the year-end fair value of any equity awards granted in the year that are outstanding and unvested as of the end of the year; (ii) for any awards granted in prior years that are outstanding and unvested as of the end of the fiscal year, the addition (or subtraction, if applicable) of the change in fair value of between the end of the prior fiscal year the end of the applicable fiscal year; (iii) for awards that are granted and vest in the same fiscal year, the addition of the fair value of such awards as of the vesting date; (iv) for awards granted in prior years that vest during the fiscal year, the addition (or subtraction, if applicable) of the change in fair value between the end of the prior fiscal year and the vesting date of such awards; (v) for awards granted in prior years that fail to meet the applicable vesting conditions during the fiscal year, the subtraction of the fair value of such awards at the end of the prior fiscal year; and (vi) the dollar value of any dividends or other earnings paid on such awards in the applicable year prior to the vesting date that are not otherwise reflected in the fair value of such award or included in any other component of the amount reported in the “Total” column of the Summary Compensation Table for the applicable year. The valuation assumptions used to calculate fair values did not materially differ from those disclosed at the time of grant. The amounts deducted or added in calculating the equity award adjustments are as follows:

(3)Non-PEO NEOs for 2024 include Nick Harvey, Francesco Galimi and Blake Aftab, for 2023, include Nick Harvey and Donald Healey, and for 2022, include Francesco Galimi and Blake Aftab.

(4) The amounts reported represent the average “compensation actually paid” to the NEOs other than our PEO as a group, computed in accordance with Item 402(v) of Regulation S-K. The amounts do not reflect the actual average amount of compensation earned by or paid to such NEOs as a group in the applicable year. In accordance with Item 402(v) of Regulation S-K, the following adjustments were made were made to the average of the amounts reported in the “Total” column of the Summary Compensation Table for the NEOs as a group (excluding our PEO) for each year to determine the compensation actually paid, using the same methodology described above in footnote 2:

(a) The amounts reported represent the average of the sum of the amounts reported in the “Stock Awards” and “Option Awards” columns in the Summary Compensation Table for the applicable fiscal year.

(b) The equity award adjustments for each fiscal year include the amounts noted in footnote 1(a). The amounts deducted or added in calculating the equity award adjustments are as follows:

(5) Total shareholder return (TSR) is calculated by dividing the sum of the cumulative amount of dividends for the measurement period, assuming dividend reinvestment, and the difference between the Company’s share price at the end and the beginning of the measurement period by the Company’s share price at the beginning of the measurement period.

(6) The dollar amounts reported represent the amount of net income reflected in the Company’s audited financial statements for the applicable fiscal year.

Analysis of the Information Presented in the Pay Versus Performance Table

Since we are a clinical stage research and development company, with no recurring revenue, we generally seek to incentivize long-term performance, and therefore do not specifically align our performance measures with “compensation actually paid” (as computed in accordance with Item 402(v) of Regulation S-K) for a particular year. In accordance with Item 402(v) of Regulation S-K, we are providing the following descriptions of the relationships between information presented in the Pay Versus Performance table.

Compensation Actually Paid and Company TSR

Compensation Actually Paid and Net Loss

Because we are not a commercial-stage company, we did not have any revenue during the periods presented, other than non-recurring revenue in 2022 associated with a third party collaboration agreement. Consequently, our company has not historically looked to net income (loss) as a performance measure for our executive compensation program.