Who owns Biogen Idec?
- Ticker: BIIB
- CUSIP Number: 09062X103
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Analyze quarterly positions in Biogen Idec with up to 7 years of data, all consolidated into one spreadsheet
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Top investors of Biogen Idec stock
Who bought or sold Biogen Idec this quarter?
| Fund or Company Name | Shares Held | Valued At | Change in Shares | As Of | Actions |
|---|---|---|---|---|---|
| Vanguard Group | 17M | $3.1B | 1% | Dec 2025 |
|
| BlackRock | 15M | $2.6B | 0% | Dec 2025 |
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| PRIMECAP Management Company | 15M | $2.6B | -1% | Dec 2025 |
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| State Street Corporation | 7.2M | $1.3B | -2% | Dec 2025 |
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| Wellington Management Company | 4.2M | $595M | -12% | Sep 2025 |
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| Geode Capital Management | 4.2M | $736M | 3% | Dec 2025 |
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| Point72 Asset Management | 3.8M | $671M | -22% | Dec 2025 |
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| Norges Bank Investment Management | 2.6M | $464M | 100% | Dec 2025 |
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| Susquehanna International | 2.3M | $408M | 11% | Dec 2025 |
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| AQR Capital Management | 1.8M | $249M | 31% | Sep 2025 |
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| Robeco Investment Management | 1.7M | $303M | 100% | Dec 2025 |
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| Invesco | 1.7M | $291M | -32% | Dec 2025 |
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| Barclays | 1.5M | $263M | 9% | Dec 2025 |
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| Legal & General Group | 1.5M | $257M | -8% | Dec 2025 |
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| Millennium Management | 1.5M | $204M | 93% | Sep 2025 |
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| Northern Trust | 1.4M | $255M | -4% | Dec 2025 |
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| Ubs Global Asset Management Americas | 1.4M | $245M | -3% | Dec 2025 |
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| FMR | 1.3M | $180M | -23% | Sep 2025 |
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| Jpmorgan Chase & Co | 1.3M | $193M | 100% | Sep 2025 |
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| Balyasny Asset Management | 1.2M | $174M | 49% | Sep 2025 |
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| T. Rowe Price Investment Management | 1.2M | $206M | 10% | Dec 2025 |
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| Goldman Sachs Group | 1.2M | $204M | 9% | Dec 2025 |
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| Pacer Advisors | 1.1M | $202M | -21% | Dec 2025 |
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| Charles Schwab Investment Management | 1.1M | $201M | 2% | Dec 2025 |
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| Van Eck Associates Corp. | 1.1M | $188M | 0% | Dec 2025 |
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| Alyeska Investment Group | 1.0M | $180M | 21% | Dec 2025 |
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| Dimensional Fund Advisors | 961k | $169M | 10% | Dec 2025 |
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| Deutsche Bank Aktiengesellschaft | 954k | $168M | -23% | Dec 2025 |
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| Pictet Asset Management Holding SA | 948k | $167M | 23% | Dec 2025 |
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| Bank of New York Mellon | 811k | $143M | -8% | Dec 2025 |
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| Citadel Advisors | 772k | $108M | -43% | Sep 2025 |
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| UBS Group | 767k | $135M | 2% | Dec 2025 |
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| Massachusetts Financial Services | 713k | $125M | -2% | Dec 2025 |
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| Employees Provident Fund Board | 704k | $124M | 100% | Dec 2025 |
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| Robeco Institutional Asset Management B V | 611k | $108M | -9% | Dec 2025 |
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| Caisse de depot et placement du Quebec | 589k | $104M | 3% | Dec 2025 |
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| Patient Capital Management | 576k | $101M | 45% | Dec 2025 |
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| Amundi | 572k | $101M | -7% | Dec 2025 |
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| First Trust Advisors | 566k | $100M | -33% | Dec 2025 |
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| Jane Street | 565k | $99M | -5% | Dec 2025 |
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| Causeway Capital Management | 521k | $92M | -8% | Dec 2025 |
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| D. E. Shaw & Co | 517k | $73M | -62% | Sep 2025 |
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| Bnp Paribas Arbitrage, Snc | 508k | $89M | 28% | Dec 2025 |
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| Royal Bank of Canada | 498k | $70M | 0% | Sep 2025 |
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| AustralianSuper Pty | 477k | $84M | -37% | Dec 2025 |
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| Hsbc Holdings | 454k | $64M | 2% | Sep 2025 |
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| Zurcher Kantonalbank | 452k | $80M | 30% | Dec 2025 |
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| Swiss National Bank | 402k | $71M | -5% | Dec 2025 |
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| Renaissance Technologies | 399k | $70M | -59% | Dec 2025 |
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| Marshall Wace | 387k | $68M | -57% | Dec 2025 |
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| Hrt Financial | 384k | $68M | 8543% | Dec 2025 |
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| Nuveen | 376k | $66M | 13% | Dec 2025 |
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| Sumitomo Mitsui Trust Holdings | 371k | $65M | -11% | Dec 2025 |
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| Prudential Financial | 354k | $62M | -19% | Dec 2025 |
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| Jain Global | 353k | $62M | 100% | Dec 2025 |
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| Man Group | 339k | $60M | -63% | Dec 2025 |
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| Adage Capital Partners GP | 332k | $47M | 34% | Sep 2025 |
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| CalPERS | 331k | $58M | -4% | Dec 2025 |
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| Candriam Luxembourg S.C.A. | 331k | $58M | 108% | Dec 2025 |
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| Mitsubishi UFJ Asset Management | 320k | $57M | 4% | Dec 2025 |
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| LSV Asset Management | 317k | $56M | 3% | Dec 2025 |
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| Fil | 308k | $43M | 26% | Sep 2025 |
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| Fisher Investments | 293k | $52M | 6% | Dec 2025 |
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| National Pension Service | 287k | $51M | 1% | Dec 2025 |
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| Centiva Capital | 274k | $48M | 9% | Dec 2025 |
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| Rhumbline Advisers | 272k | $48M | -6% | Dec 2025 |
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| Gotham Asset Management | 271k | $38M | 65% | Sep 2025 |
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| Kames Capital | 260k | $46M | 33% | Dec 2025 |
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| Allianz Asset Management | 248k | $44M | -38% | Dec 2025 |
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| Victory Capital Management | 247k | $43M | 16% | Dec 2025 |
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| Bnp Paribas Investment Partners | 246k | $43M | 25% | Dec 2025 |
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| Canada Pension Plan Investment Board | 239k | $34M | -6% | Sep 2025 |
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| Alliancebernstein | 237k | $33M | 3% | Sep 2025 |
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| Swedbank AB | 232k | $41M | 0% | Dec 2025 |
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| Thompson, Siegel, & Walmsley | 229k | $40M | -25% | Dec 2025 |
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| Artemis Investment Management | 227k | $40M | 100% | Dec 2025 |
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| California State Teachers Retirement System | 226k | $40M | -4% | Dec 2025 |
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| Hudson Bay Capital Management | 222k | $39M | -12% | Dec 2025 |
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| Capital Fund Management | 210k | $29M | -48% | Sep 2025 |
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| Two Sigma Investments | 205k | $29M | -60% | Sep 2025 |
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| Thomas Stevens, CFA" | 205k | $31M | 7% | Dec 2025 |
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| Logos Global Management | 200k | $35M | 100% | Dec 2025 |
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| Peak6 | 198k | $35M | -5% | Dec 2025 |
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| Klp Kapitalforvaltning As | 192k | $34M | 15% | Dec 2025 |
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| Freestone Grove Partners | 188k | $33M | -14% | Dec 2025 |
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| Acadian Asset Management | 188k | $33M | -4% | Dec 2025 |
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| Palo Alto Investors | 186k | $26M | -10% | Sep 2025 |
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| Principal Financial Group | 184k | $32M | 17% | Dec 2025 |
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| SG Americas Securities | 184k | $32M | 1794% | Dec 2025 |
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| Qube Research & Technologies | 181k | $32M | -45% | Dec 2025 |
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| Wolverine Trading | 174k | $24M | 19% | Sep 2025 |
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| Nomura Holdings | 163k | $29M | -2% | Dec 2025 |
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| Squarepoint Ops | 161k | $28M | 563% | Dec 2025 |
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| Cresset Asset Management | 153k | $27M | 71% | Dec 2025 |
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| Walleye Trading | 149k | $26M | 790% | Dec 2025 |
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| Banco Bilbao Vizcaya Argentaria | 147k | $26M | 6% | Dec 2025 |
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| Franklin Resources | 141k | $25M | -38% | Dec 2025 |
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| Standard Life Aberdeen | 140k | $25M | 1% | Dec 2025 |
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| Ieq Capital | 140k | $25M | 1% | Dec 2025 |
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| TD Asset Management | 135k | $24M | -16% | Dec 2025 |
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| Y-Intercept | 135k | $24M | 100% | Dec 2025 |
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| Suvretta Capital Management | 132k | $23M | -21% | Dec 2025 |
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| Ameriprise Financial | 132k | $23M | -9% | Dec 2025 |
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| Federated Investors | 131k | $23M | 5% | Dec 2025 |
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| Letko, Brosseau & Associates | 130k | $23M | 8% | Dec 2025 |
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| Florida State Board of Administration | 126k | $22M | -4% | Dec 2025 |
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| Aviva | 125k | $22M | 8% | Dec 2025 |
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| Universal- Beteiligungs- und Servicegesellschaft mbH | 124k | $22M | -16% | Dec 2025 |
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| Wells Fargo & Company | 119k | $21M | -32% | Dec 2025 |
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| Russell Investments | 119k | $21M | -16% | Dec 2025 |
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| AXA Investment Managers | 118k | $17M | 100% | Sep 2025 |
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| Braidwell | 116k | $20M | 100% | Dec 2025 |
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| New York State Teachers Retirement System | 111k | $20M | 1% | Dec 2025 |
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| O'shaughnessy Asset Management | 110k | $19M | 84% | Dec 2025 |
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| DekaBank Deutsche Girozentrale | 109k | $26M | 0% | Dec 2025 |
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| Schonfeld Strategic Advisors | 107k | $19M | -67% | Dec 2025 |
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| Susquehanna Portfolio Strategies | 106k | $19M | 100% | Dec 2025 |
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| Manufacturers Life Insurance Company | 106k | $19M | -13% | Dec 2025 |
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| Great-West Life Assurance Company | 103k | $18M | -24% | Dec 2025 |
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| Woodline Partners | 102k | $18M | 6% | Dec 2025 |
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| Integral Health Asset Management | 100k | $18M | 100% | Dec 2025 |
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| New York State Common Retirement Fund | 99k | $18M | -31% | Dec 2025 |
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| Point72 Europe | 99k | $14M | 3% | Sep 2025 |
|
| Quantinno Capital Management | 98k | $17M | 45% | Dec 2025 |
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| National Bank Of Canada /fi/ | 97k | $17M | 32% | Dec 2025 |
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| Walleye Trading Advisors | 97k | $17M | 119% | Dec 2025 |
|
| APG All Pensions Group NV | 95k | $14M | -3% | Dec 2025 |
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| Sphera Funds Management | 95k | $17M | 15% | Dec 2025 |
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| Caption Management | 93k | $16M | -22% | Dec 2025 |
|
| Rhenman & Partners Asset Management AB | 92k | $16M | 68% | Dec 2025 |
|
| Creative Planning | 90k | $16M | 31% | Dec 2025 |
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| LPL Financial | 90k | $16M | 28% | Dec 2025 |
|
| Twin Tree Management | 87k | $15M | 242% | Dec 2025 |
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| American Century Companies | 86k | $15M | 22% | Dec 2025 |
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| Handelsbanken Fonder AB | 84k | $15M | -15% | Dec 2025 |
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| Raymond James Financial | 84k | $15M | 57% | Dec 2025 |
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| Illinois Municipal Retirement Fund | 81k | $14M | -2% | Dec 2025 |
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| Tudor Investment Corporation | 81k | $11M | -42% | Sep 2025 |
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| Eversept Partners | 78k | $14M | 51% | Dec 2025 |
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| State of Wisconsin Investment Board | 76k | $13M | -3% | Dec 2025 |
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| Sector Gamma ASA | 76k | $11M | 49% | Sep 2025 |
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| Silverarc Capital Management | 75k | $13M | -6% | Dec 2025 |
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| Chevy Chase Trust Holdings | 75k | $13M | -1% | Dec 2025 |
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| Privium Fund Management B.V. | 74k | $13M | 42% | Dec 2025 |
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| Treasurer of the State of North Carolina | 73k | $13M | 11% | Dec 2025 |
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| State of Tennessee, Treasury Department | 72k | $13M | -16% | Dec 2025 |
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| Banque Pictet & Cie Sa | 71k | $13M | 0% | Dec 2025 |
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| Mackenzie Financial | 71k | $13M | 11% | Dec 2025 |
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| HPM Partners | 68k | $12M | -17% | Dec 2025 |
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| Diam | 68k | $12M | -1% | Dec 2025 |
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| Mitsubishi UFJ Trust & Banking Corp | 65k | $12M | -23% | Dec 2025 |
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| Mirae Asset Global Etfs Holdings | 58k | $10M | -58% | Dec 2025 |
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| Rafferty Asset Management | 49k | $8.5M | -69% | Dec 2025 |
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| Arrowstreet Capital, Limited Partnership | 45k | $8.0M | -88% | Dec 2025 |
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| ProShare Advisors | 42k | $7.3M | -79% | Dec 2025 |
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| Parkman Healthcare Partners | 35k | $6.2M | -73% | Dec 2025 |
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| Cubist Systematic Strategies | 34k | $4.7M | -71% | Sep 2025 |
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| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 25k | $4.4M | -78% | Dec 2025 |
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| Rakuten Investment Management | 19k | $3.4M | -90% | Dec 2025 |
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| Nordea Investment Management Ab | 14k | $2.5M | -89% | Dec 2025 |
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| Thrivent Financial for Lutherans | 14k | $2.5M | -83% | Dec 2025 |
|
| Two Sigma Advisers | 14k | $1.9M | -97% | Sep 2025 |
|
Who sold out of Biogen Idec?
| Fund or Company Name | Date Sold | Shares Held | Valued At |
|---|---|---|---|
| Vestal Point Capital | Sep 2025 | 275k | $39M |
| WEDGE Capital Management L | Sep 2025 | 193k | $27M |
| Connor, Clark & Lunn Investment Management | Sep 2025 | 117k | $16M |