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