ALNYLAM PHARMACEUTICALS, INC. - COMMON STOCK (ALNY)

Q4 2025 13F Holders as of 31 Dec 2025

Type / Class
Equity / COMMON STOCK
Shares outstanding
131,516,365
Total 13F shares
129,303,717
Share change
-1,037,596
Total reported value
$51,433,526,650
Put/Call ratio
61%
Price per share
$397.65
Number of holders
832
Value change
-$554,137,450
Number of buys
404
Number of sells
402

Institutional Holders of ALNYLAM PHARMACEUTICALS, INC. - COMMON STOCK (ALNY) as of Q4 2025

As of 31 Dec 2025, ALNYLAM PHARMACEUTICALS, INC. - COMMON STOCK (ALNY) was held by 832 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 129,303,717 shares. The largest 10 holders included Capital World Investors, FMR LLC, VANGUARD GROUP INC, BlackRock, Inc., Capital Research Global Investors, JPMORGAN CHASE & CO, STATE STREET CORP, GEODE CAPITAL MANAGEMENT, LLC, BAILLIE GIFFORD & CO, and NORGES BANK. This page lists 832 institutional shareholders reporting positions in this security for the Q4 2025 filing period.
Investor Option Weight % Change % Value $ * Price Shares Share Change Activity Report Period
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.