BIOGEN INC. - COMMON STOCK (BIIB)

Q3 2025 13F Holders as of 30 Sep 2025

Type / Class
Equity / COMMON STOCK
Shares outstanding
147,079,094
Total 13F shares
130,394,386
Share change
+878,179
Total reported value
$18,268,725,836
Put/Call ratio
60%
Price per share
$140.08
Number of holders
891
Value change
+$165,528,624
Number of buys
430
Number of sells
341

Institutional Holders of BIOGEN INC. - COMMON STOCK (BIIB) as of Q3 2025

As of 30 Sep 2025, BIOGEN INC. - COMMON STOCK (BIIB) was held by 891 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 130,394,386 shares. The largest 10 holders included VANGUARD GROUP INC, PRIMECAP MANAGEMENT CO/CA/, BlackRock, Inc., STATE STREET CORP, WELLINGTON MANAGEMENT GROUP LLP, GEODE CAPITAL MANAGEMENT, LLC, Point72 Asset Management, L.P., Invesco Ltd., MORGAN STANLEY, and AQR CAPITAL MANAGEMENT LLC. This page lists 891 institutional shareholders reporting positions in this security for the Q3 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.