ACET: Adicet Bio, Inc. insider trading, 5% holders and institutional ownership
From public SEC filings: open-market insider purchases and sales (Form 4, last 180 days), holders of 5% or more (Schedules 13D and 13G) and institutional ownership (Form 13F). Insider and 5% data delayed 48 hours.
Insider trading
0 open-market buys totaling - and 0 sales totaling - in the last 180 days.
Activist and 5% holders
| Filed | What | Holder | Stake | Change | Filing |
|---|---|---|---|---|---|
| 2026-08-14 | 13G amendment | RA Capital Management, L.P. | 9.90% | SEC |
Institutional ownership (Q2 2026)
56 institutions reported holding $51.71M of Adicet Bio, Inc. on Form 13F (48 the quarter before). 14 opened a new position and 6 sold out. Shares held by institutions: -4%.
| Largest holders | Shares | Value |
|---|---|---|
| RA CAPITAL MANAGEMENT, L.P. | 932,624 | $8.06M |
| ORBIMED ADVISORS LLC | 844,787 | $7.30M |
| FRANKLIN RESOURCES INC | 626,571 | $5.41M |
| CITADEL ADVISORS LLC | 432,738 | $3.74M |
| VANGUARD CAPITAL MANAGEMENT LLC | 343,228 | $2.97M |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 274,375 | $2.37M |
| RENAISSANCE TECHNOLOGIES LLC | 265,945 | $2.30M |
| Stonepine Capital Management, LLC | 245,518 | $2.12M |
| Alyeska Investment Group, L.P. | 203,799 | $1.76M |
| Schonfeld Strategic Advisors LLC | 195,514 | $1.69M |
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