ALNY ALNYLAM PHARMACEUTICALS INC
FollowStock (common), issuer CIK 1178670
614 managers (629 13F filers) reported a position in ALNY shares at 2025-03-31, 129,391,036 shares in all. 96 filers opened a position and 65 filers sold out during the quarter.
- Managers
- 614
- 13F filers
- 629
- New
- 96
- Added
- 236
- Reduced
- 207
- Sold out
- 65
- Shares held by filers
- 129,391,036
Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.
13D and 13G filers
No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.
Insider trades
| Owner | Date | Shares | Price | Filing |
|---|---|---|---|---|
| SUPRAN BRYANofficer (EVP, CLO and Secretary) | 2026-10-02 | -1,758 S | $226.88 | Form 4 |
13F holders, Q1 2025
Filers in the available 13F reports with a share position at 2025-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.
Events
SUPRAN BRYAN sold 1,758 ALNY shares on 2026-10-02, Form 4 filed 2026-10-06. 0001178670-26-000068
Accepted , ingested