Adicet Bio Inc

(a) None.

As previously disclosed, on March 12, 2021, we entered into a Capital On Demand™ Sales Agreement (Sales Agreement) with JonesTrading Institutional Services LLC (Sales Agent), pursuant to which we may sell from time to time, at our option, up to an aggregate of $75,000,000 of shares of the our common stock (ATM Shares), through our Sales Agent (ATM Program). On November 8, 2022, we filed a new prospectus supplement covering the offer and sale of up to $100.0 million of shares of our common stock under the ATM Program, which included the $30.0 million of shares of our common stock not sold pursuant to the existing prospectus and up to an additional $70.0 million of shares of our common stock.

On March 13, 2024, we delivered written notice to our Sales Agent to terminate the Sales Agreement, effective as of March 15, 2024, pursuant to Section 12(b) thereof. We are not subject to any termination penalties related to the termination of the Sales Agreement. Prior to termination, $64.9 million of the ATM Shares had been sold and $80.1 million of the ATM Shares remained available for sale pursuant to the Sales Agreement. As a result of the termination of the Sales Agreement, we will not offer or sell any additional shares under the ATM Program.

(b) None.