144 0001682093 XXXXXXXX LIVE 0001720580 Adicet Bio, Inc. 001-38359 131 DARTMOUTH STREET 3RD FLOOR BOSTON MA 02116 617-482-2333 OrbiMed Israel Partners II, L.P. Shareholder Common Stock Themis Trading LLC

10 Town Square Suite 100 Chatham NJ 07928

40416 264724.80 9596407 04/08/2026 Nasdaq Stock Market Common Stock 09/15/2020 Merger Issuer N 40416 09/15/2020 N/A Y OrbiMed Israel GP II, L.P. is the general partner of OrbiMed Israel Partners II, L.P. OrbiMed Advisors Israel II Limited is the general partner of OrbiMed Israel GP II, L.P. 04/08/2026 /s/ Carl L. Gordon, Director, OrbiMed Advisors Israel II Limited, general partner of the general partner of OrbiMed Israel Partners II, L.P.