ALNYLAM PHARMACEUTICALS, INC. - COMMON STOCK (ALNY)

CUSIP: 02043Q107

Q4 2025 13F Holders as of 31 Dec 2025

Type / Class
Equity / COMMON STOCK
Shares outstanding
131,516,365
Total 13F shares
129,396,765
Share change
-1,012,581
Total reported value
$51,470,605,491
Put/Call ratio
61%
Price per share
$397.65
Number of holders
835
Value change
-$544,208,244
Number of buys
405
Number of sells
404

Quarterly Holders Quick Answers

What is CUSIP 02043Q107?
CUSIP 02043Q107 identifies ALNY - ALNYLAM PHARMACEUTICALS, INC. - COMMON STOCK in SEC institutional holdings data.

Need full ownership history?
Open the full security ownership history page.

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 835 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 129,396,765 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 835 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.