Key facts
- RA CAPITAL MANAGEMENT, L.P. filed SCHEDULE 13G/A for Adicet Bio, Inc. Common Stock, par value $0.0001 per share (ACET).
- Disclosed ownership: 12%.
- Date of event: 17 Feb 2026.
RA CAPITAL MANAGEMENT, L.P. - 17 Feb 2026 SCHEDULE 13G/A Report for Adicet Bio, Inc. Common Stock, par value $0.0001 per share (ACET)
- Filing manager
- RA CAPITAL MANAGEMENT, L.P.
- Reporting owner
- RA Capital Management, L.P.
- Symbol
- ACET
- Shares outstanding
- 9,614,829 shares
- Disclosed shares
- 1,182,624 shares
- Ownership percentage
- 12%
- Form type
- SCHEDULE 13G/A
- Filing time
- 13 Apr 2026, 17:22:58 UTC
- Event date
- 17 Feb 2026
- Previous filing
- 17 Feb 2026
- SEC filing
- View on sec.gov
Reporting parties
Subject security
Ownership signal
SEC evidence
Key filing fact
RA CAPITAL MANAGEMENT, L.P. disclosed 12% ownership in Adicet Bio, Inc. Common Stock, par value $0.0001 per share (ACET) on 17 Feb 2026.
Change
- Previous schedule filing date: 17 Feb 2026.
- Current filing was accepted on 13 Apr 2026, 17:22.
Research use
- This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
- You can verify ownership claims directly against the original SEC filing.
Evidence
Backed by Schedule 13D/13G
See Original Filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting persons
Reporting managers (4)
Names, ownership, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| RA Capital Management, L.P. | 12% | 1,182,624 | 0 | 1,182,624 | /s/ Peter Kolchinsky | By Peter Kolchinsky, Authorized Signatory | |
| Peter Kolchinsky | 12% | 1,182,624 | 0 | 1,182,624 | /s/ Peter Kolchinsky | Peter Kolchinsky | |
| Rajeev Shah | 12% | 1,182,624 | 0 | 1,182,624 | /s/ Rajeev Shah | Rajeev Shah | |
| RA Capital Healthcare Fund, L.P. | 12% | 1,182,624 | 0 | 1,182,624 | /s/ Peter Kolchinsky | By RA Capital Healthcare Fund GP, LLC, its General Partner, By Peter Kolchinsky, Manager |
CIK / CUSIP context first