Biogen Inc. (BIIB) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

147,100,000Shares Outstanding
139,930,277Shares held by institutions
$27,867,114,665Value of institutional holdings
95.13%Institutional ownership %
6.46%Shares Changed QoQ
967No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Biogen Inc. (NASDAQ:BIIB) has 967 institutional investors that have filed 13F reports for the period ending December 2025.

983 Institutional Holders

139,930,277 Total Shares Held
Download Data
Owner Name Date Shares Held Change (QoQ) Change (%) Value (USD)
BlackRock, Inc. 31 Mar, 2026 15,974,601 1,163,231 7.85% $2,928,623,480.00
PRIMECAP MANAGEMENT CO/CA/ 31 Mar, 2026 14,757,607 -390 0.00% $2,705,512,094.00
FMR LLC 31 Mar, 2026 12,807,541 3,381,678 35.88% $2,348,006,582.00
VANGUARD CAPITAL MANAGEMENT LLC 31 Mar, 2026 9,537,417 9,537,417 0.00% $1,748,494,659.00
State Street Corp 31 Mar, 2026 7,167,922 8,902 0.12% $1,314,095,140.00
VANGUARD PORTFOLIO MANAGEMENT LLC 31 Mar, 2026 6,531,727 6,531,727 0.00% $1,197,461,511.00
GEODE CAPITAL MANAGEMENT, LLC 31 Mar, 2026 4,342,602 143,203 3.41% $793,387,370.00
WELLINGTON MANAGEMENT GROUP LLP 31 Mar, 2026 2,961,641 -589,628 -16.60% $542,957,645.00
Morgan Stanley 31 Mar, 2026 2,170,940 -154,073 -6.63% $397,998,875.00
Jpmorgan Chase & Co 31 Mar, 2026 2,016,009 158,747 8.55% $378,142,964.00
AQR CAPITAL MANAGEMENT LLC 31 Mar, 2026 1,923,557 394,941 25.84% $346,240,270.00
Invesco Ltd. 31 Mar, 2026 1,745,255 89,814 5.43% $319,957,584.00
Boston Partners 31 Mar, 2026 1,700,078 -20,517 -1.19% $311,657,547.00
Northern Trust Corp 31 Mar, 2026 1,446,579 453 0.03% $265,201,330.00
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 31 Mar, 2026 1,377,568 -13,802 -0.99% $252,549,543.00
Legal & General Group Plc 31 Mar, 2026 1,349,832 -109,765 -7.52% $247,464,698.00
T. Rowe Price Investment Management, Inc. 31 Mar, 2026 1,160,989 -788,379 -40.44% $212,845.00
Bank Of America Corp /De/ 31 Mar, 2026 1,156,369 27,524 2.44% $211,997,128.00
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 31 Mar, 2026 1,149,394 5,492 0.48% $210,718,402.00
VAN ECK ASSOCIATES CORP 31 Mar, 2026 1,079,861 14,245 1.34% $197,970.00