BiogenBIIB
13F holders, Q1 2025 (March 31)883holders +7
106new positions
105sold out
9famous investors
$136.70avg. 13F price*
At the end of Q1 2025, 883 institutions reported holding Biogen Inc. (BIIB) in their 13F filings, up 7 from Q4 2024. 106 opened new positions and 105 sold out. The largest holders were Vanguard Group Inc. ($2.3B), Primecap Management Co. ($2.2B) and BlackRock, Inc. ($2.1B). 9 famous investors held it, including David E. Shaw (0.3% of D. E. Shaw & Co.'s portfolio), Cliff Asness (0.2% of AQR Capital Management's portfolio) and Jim Simons / Peter Brown (0.2% of Renaissance Technologies's portfolio).
- Company
- Biogen Inc.
- Sector
- Health Care
- CUSIP
- 09062X103
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2024 → Q1 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 106 | $420.6M |
| Exits | 105 | $248.0M |
All 13F filers, Q4 2024 → Q1 2025: 10,245,646 shares bought and 12,507,483 shares sold, net −2,261,837 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 883 holders
| Vanguard Group Inc. | 0.04% | Add +1.7% | 17,032,839 | $2.3B |
| Primecap Management Co. | 1.80% | Reduce -0.6% | 15,943,259 | $2.2B |
| BlackRock, Inc. | 0.04% | Reduce -1.7% | 15,211,036 | $2.1B |
| State Street Corp. | 0.04% | Reduce -0.0% | 7,396,910 | $1.0B |
| Wellington Management Group LLP | 0.12% | Reduce -5.2% | 4,672,437 | $639.4M |
| Geode Capital Management, LLC | 0.04% | Add +4.1% | 3,846,864 | $524.8M |
| T. Rowe Price Investment Management, Inc. | 0.24% | Reduce -14.2% | 2,660,290 | $364.0M |
| Invesco Ltd. | 0.06% | Add +6.4% | 2,265,007 | $309.9M |
| Norges Bank | 0.04% | Reduce -7.4% | 2,153,386 | $294.7M |
| Morgan Stanley | 0.02% | Add +11.7% | 1,990,668 | $272.4M |
| D. E. Shaw & Co. | 0.28% | Reduce -1.5% | 1,585,572 | $217.0M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.05% | Reduce -1.5% | 1,510,386 | $206.7M |
| Northern Trust Corp. | 0.03% | Reduce -3.2% | 1,501,087 | $205.4M |
| JPMorgan Chase & Co. | 0.02% | Reduce -30.2% | 1,463,720 | $200.3M |
| AQR Capital Management | 0.19% | Add +153.6% | 1,368,842 | $187.3M |
| Pacer Advisors, Inc. | 0.48% | Reduce -49.3% | 1,352,560 | $185.1M |
| FMR LLC | 0.01% | Add +72.8% | 1,308,828 | $179.1M |
| Legal & General Group Plc | 0.05% | Add +4.5% | 1,285,027 | $175.8M |
| Amundi | 0.06% | Add +8.1% | 1,315,947 | $172.0M |
| Qube Research & Technologies Ltd | 0.26% | Add +12.5% | 1,226,709 | $167.9M |
| T. Rowe Price Associates Inc. | 0.02% | Reduce -40.5% | 1,151,192 | $157.5M |
| Van Eck Associates Corp. | 0.19% | Add +0.7% | 1,073,622 | $146.9M |
| Charles Schwab Investment Management Inc. | 0.03% | Add +4.9% | 1,019,219 | $139.5M |
| Dimensional Fund Advisors LP | 0.03% | Reduce -3.5% | 986,719 | $135.0M |
| Bank of New York Mellon Corp | 0.03% | Reduce -2.1% | 953,811 | $130.5M |
| Deutsche Bank AG | 0.05% | Reduce -19.5% | 941,052 | $128.8M |
| Barclays PLC | 0.06% | Add +9.5% | 918,353 | $125.7M |
| Two Sigma Investments, LP | 0.27% | Add +3.2% | 879,330 | $120.3M |
| Renaissance Technologies | 0.17% | Reduce -32.5% | 804,506 | $110.1M |
| Balyasny Asset Management L.P. | 0.27% | Add +1615.5% | 786,219 | $107.6M |
| Man Group plc | 0.32% | Add +11.5% | 765,321 | $104.7M |
| Bank of America Corp. | 0.01% | Add +75.3% | 729,856 | $99.9M |
| SG Americas Securities, LLC | 0.34% | New | 719,793 | $98.5M |
| Massachusetts Financial Services Co. | 0.03% | Reduce -3.3% | 708,415 | $96.9M |
| Employees Provident Fund Board | 1.09% | No change | 704,196 | $96.4M |
| Two Sigma Advisers, LP | 0.21% | Add +26.7% | 677,400 | $92.7M |
| Allianz Asset Management GmbH | 0.13% | Add +24.6% | 667,767 | $91.4M |
| First Trust Advisors LP | 0.08% | Add +29.4% | 661,420 | $90.5M |
| UBS Group AG | 0.02% | Reduce -38.4% | 646,147 | $88.4M |
| Goldman Sachs Group Inc. | 0.02% | Reduce -21.5% | 604,697 | $82.7M |
| Franklin Resources Inc. | 0.02% | Add +49.1% | 588,117 | $80.5M |
| Citadel Advisors | 0.07% | Add +252.6% | 541,764 | $74.1M |
| HSBC Holdings PLC | 0.04% | Add +9.8% | 484,029 | $66.0M |
| Patient Capital Management, LLC | 3.21% | Add +10.1% | 455,605 | $62.3M |
| Robeco Institutional Asset Management B.V. | 0.12% | Add +11.1% | 453,529 | $62.1M |
| Causeway Capital Management LLC | 1.24% | Add +53.9% | 433,517 | $59.3M |
| Millennium Management | 0.06% | Reduce -22.0% | 423,997 | $58.0M |
| Prudential Financial Inc. | 0.08% | Reduce -27.0% | 420,649 | $57.6M |
| Sumitomo Mitsui Trust Group, Inc. | 0.04% | Add +6.5% | 416,960 | $57.1M |
| Squarepoint Ops LLC | 0.14% | Add +11.9% | 415,510 | $56.9M |
| Swiss National Bank | 0.04% | Reduce -0.1% | 411,000 | $56.2M |
| Point72 Asset Management | 0.16% | New | 407,257 | $55.7M |
| AustralianSuper Pty Ltd | 0.31% | New | 397,697 | $54.4M |
| California Public Employees Retirement System | 0.04% | Reduce -3.2% | 385,094 | $52.7M |
| BNP Paribas Financial Markets | 0.04% | Reduce -3.1% | 366,181 | $50.1M |
| Royal Bank of Canada | 0.01% | Add +34.2% | 330,562 | $45.2M |
| Citigroup Inc. | 0.03% | Add +14.5% | 302,615 | $41.4M |
| Fisher Asset Management | 0.02% | Add +65.3% | 299,030 | $40.9M |
| Rhumbline Advisers | 0.04% | Add +10.3% | 296,294 | $40.5M |
| TD Asset Management Inc | 0.04% | Reduce -20.1% | 284,376 | $38.9M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.17% | Add +98.0% | 277,834 | $38.0M |
| Mitsubishi UFJ Asset Management Co., Ltd. | 0.03% | Add +11.3% | 273,548 | $37.4M |
| National Pension Service | 0.04% | Add +8.6% | 271,483 | $37.1M |
| Susquehanna International Group, LLP | 0.06% | Reduce -44.7% | 268,372 | $36.7M |
| Thompson Siegel & Walmsley LLC | 0.60% | New | 257,456 | $35.2M |
| LSV Asset Management | 0.08% | Add +3.2% | 241,976 | $33.1M |
| Verition Fund Management LLC | 0.19% | Add +5.2% | 238,952 | $32.7M |
| Canada Pension Plan Investment Board | 0.03% | Reduce -11.6% | 230,804 | $31.6M |
| California State Teachers Retirement System | 0.04% | Reduce -1.2% | 230,535 | $31.5M |
| Alliancebernstein L.P. | 0.01% | Add +26.7% | 229,054 | $31.3M |
| ProShare Advisors LLC | 0.07% | Add +13.3% | 224,655 | $30.7M |
| Pictet Asset Management Holding SA | 0.03% | Reduce -25.9% | 217,530 | $30.0M |
| Swedbank AB | 0.04% | Add +18.5% | 218,039 | $29.8M |
| Arrowstreet Capital, Limited Partnership | 0.02% | New | 214,780 | $29.4M |
| Nomura Holdings Inc. | 0.16% | Reduce -2.3% | 213,770 | $29.3M |
| Capital Fund Management S.A. | 0.37% | Reduce -11.4% | 213,015 | $29.1M |
| Russell Investments Group, Ltd. | 0.04% | Add +70.5% | 207,649 | $28.4M |
| Palo Alto Investors LP | 5.34% | Add +7.8% | 204,923 | $28.0M |
| National Bank of Canada | 0.03% | Add +13.3% | 201,533 | $27.6M |
| Hudson Bay Capital Management LP | 0.20% | Reduce -16.8% | 200,520 | $27.4M |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.07% | Add +30.3% | 187,803 | $25.7M |
| Candriam S.C.A. | 0.16% | Reduce -7.5% | 186,780 | $25.6M |
| Retirement Systems of Alabama | 0.10% | Reduce -1.0% | 183,551 | $25.1M |
| Rafferty Asset Management, LLC | 0.11% | Reduce -4.6% | 180,775 | $24.7M |
| HRT Financial LP | 0.15% | New | 178,342 | $24.4M |
| Principal Financial Group Inc. | 0.01% | Add +0.1% | 164,836 | $22.6M |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 0.04% | Add +3.0% | 157,461 | $21.5M |
| KLP Kapitalforvaltning As | 0.10% | Add +69.0% | 156,077 | $21.4M |
| Wells Fargo & Company | 0.01% | Add +39.1% | 154,485 | $21.1M |
| AXA S.A. | 0.07% | Reduce -4.7% | 153,969 | $21.1M |
| Nisa Investment Advisors, LLC | 0.10% | Reduce -23.1% | 153,217 | $21.0M |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 0.06% | Reduce -14.5% | 152,593 | $20.9M |
| Aberdeen Group plc | 0.04% | Reduce -73.0% | 146,813 | $20.0M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.04% | Add +23.3% | 144,593 | $19.8M |
| Cubist Systematic Strategies, LLC | 0.25% | Add +22.6% | 140,881 | $19.3M |
| Voloridge Investment Management, LLC | 0.07% | Reduce -11.3% | 134,489 | $18.4M |
| State Board of Administration of Florida Retirement System | 0.04% | No change | 133,547 | $18.3M |
| Bank of Montreal | 0.01% | Reduce -37.1% | 132,968 | $18.2M |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 0.02% | Add +82.5% | 132,891 | $18.2M |
| New York State Common Retirement Fund | 0.03% | Add +18.1% | 131,146 | $17.9M |
"% of holder's portfolio" is BIIB's weight in each manager's 13F, not the share of Biogen Inc. the manager owns.