SCHEDULE 13D/A

ADICET BIO INC

Common Stock, par value $0.0001 · CUSIP: 007002108

Event date: 2025-10-08

Reporting persons may disclose overlapping interests. Their amounts are shown individually and are not added into a filing total.

Filing-level shares

Unavailable

Percent of class

Unavailable

• ORBIMED ADVISORS LLCReported CIK 0001055951

  Shares: 14,772,598.00 · Class: 9.6%

• ORBIMED CAPITAL GP VI LLCReported CIK 0001682115

  Shares: 4,490,254.00 · Class: 2.9%

• ORBIMED CAPITAL GP V LLCReported CIK 0001615374

  Shares: 9,026,359.00 · Class: 5.9%

• OrbiMed Genesis GP LLCReported CIK 0001808744

  Shares: 1,255,985.00 · Class: 0.8%

• ORBIMED ADVISORS ISRAEL II LTDReported CIK 0001682093

  Shares: 646,657.00 · Class: 0.4%

• ORBIMED ISRAEL GP II, L.P.Reported CIK 0001682090

  Shares: 646,657.00 · Class: 0.4%

• ORBIMED ISRAEL GP LTD.Reported CIK 0001569590

  Shares: 1,027,885.00 · Class: 0.7%

• ORBIMED ISRAEL BIOFUND GP LIMITED PARTNERSHIPReported CIK 0001569821

  Shares: 1,027,885.00 · Class: 0.7%

Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.