827 managers (852 13F filers) reported a position in ALNY shares at 2025-12-31, 132,810,502 shares in all. 122 filers opened a position and 117 filers sold out during the quarter.
Managers
827
13F filers
852
New
122
Added
290
Reduced
291
Sold out
117
Shares held by filers
132,810,502
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.
Filers in the available 13F reports with a share position at 2025-12-31, 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.