Biogen Inc.
BIIB- Exchange
- Nasdaq
- Industry
- Biological Products, (No Diagnostic Substances)
- SEC CIK
- 0000875045
In the last 90 days, Biogen Inc. insiders filed 0 open-market purchases and 1 sale; 1,047 institutions reported holding it in 13F filings for Q2 2026, worth $30.7B in total; no superinvestor holds it.
13F holders, Q1 2024
Institutional positions in Biogen Inc. as of Mar 31, 2024. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 955
- −41 vs. Q4 2023
- Shares held
- 129.7M
- +1.13M (+0.9%) vs. Q4 2023
- Total value
- $28.0B
- −$5.30B (−15.9%) vs. Q4 2023
- New holders
- 105
- 304 more added
- Sold out
- 146
- 354 more reduced
9 institutions that held it in Q4 2023 haven't filed for Q1 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2023: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting BIIB on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 1,047 | $30.7B |
| Q1 2026 | 1,015 | $24.7B |
| Q4 2025 | 1,002 | $24.6B |
| Q3 2025 | 909 | $18.4B |
| Q2 2025 | 867 | $16.3B |
| Q1 2025 | 882 | $17.7B |
| Q4 2024 | 879 | $20.2B |
| Q3 2024 | 921 | $25.1B |
| Q2 2024 | 947 | $29.9B |
| Q1 2024 | 955 | $28.0B |
| Q4 2023 | 1,005 | $33.3B |
| Q3 2023 | 966 | $32.2B |
| Q2 2023 | 1,009 | $36.1B |
| Q1 2023 | 1,004 | $35.0B |
| Q4 2022 | 1,033 | $34.6B |
| Q3 2022 | 987 | $33.0B |
| Q2 2022 | 930 | $25.0B |
| Q1 2022 | 954 | $25.9B |
| Q4 2021 | 1,014 | $29.7B |
| Q3 2021 | 1,044 | $35.1B |
| Q2 2021 | 1,107 | $43.6B |
| Q1 2021 | 1,096 | $35.7B |
Institutions, Q1 2024
Shares, value and share of portfolio for each institution holding Biogen Inc.; share changes are against Q4 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| ING Groep NV | 54,898 | $11.8M | 0.08% | +5,406+10.9% | Added |
| Man Group plc | 56,641 | $12.2M | 0.03% | −13,367−19.1% | Reduced |
| Rhenman & Partners Asset Management AB | 56,800 | $12.2M | 1.16% | −1,872−3.2% | Reduced |
| Royal London Asset Management Ltd | 56,821 | $12.3M | 0.03% | −394−0.7% | Reduced |
| Martingale Asset Management L P | 57,592 | $12.4M | 0.25% | −4,635−7.4% | Reduced |
| Asset Management One Co.,Ltd. | 58,910 | $12.7M | 0.05% | −2,347−3.8% | Reduced |
| Stifel Financial Corp | 59,475 | $12.8M | 0.01% | +7,827+15.2% | Added |
| Edmond de Rothschild Holding S.A. | 59,680 | $12.9M | 0.21% | +11,547+24.0% | Added |
| Sector Gamma AS | 59,698 | $12.9M | 3.63% | −42,536−41.6% | Reduced |
| Gilder Gagnon Howe & Co LLC | 59,941 | $12.9M | 0.16% | −8,538−12.5% | Reduced |
| Voloridge Investment Management, LLC | 60,220 | $13.0M | 0.05% | +60,220 | New |
| Fisher Asset Management, LLC | 61,544 | $13.3M | 0.01% | −2,234−3.5% | Reduced |
| Jump Financial, LLC | 63,766 | $13.7M | 0.37% | +62,429+4,669.3% | Added |
| Handelsbanken Fonder AB | 64,060 | $13.8M | 0.06% | +6,527+11.3% | Added |
| Public Employees Retirement System of Ohio | 64,530 | $13.9M | 0.05% | −7,263−10.1% | Reduced |
| Guggenheim Capital LLC | 69,050 | $14.9M | 0.11% | +995+1.5% | Added |
| Nomura Asset Management Co Ltd | 70,044 | $15.1M | 0.05% | −1,651−2.3% | Reduced |
| Sphera Funds Management Ltd. | 70,646 | $15.2M | 2.47% | +24,300+52.4% | Added |
| Soleus Capital Management, L.P. | 72,800 | $15.7M | 1.38% | +72,800 | New |
| National Bank of Canada | 72,824 | $16.1M | 0.03% | −128,451−63.8% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 75,355 | $16.2M | 0.06% | −94,026−55.5% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 78,053 | $16.8M | 0.04% | −6,254−7.4% | Reduced |
| Schroder Investment Management Group | 79,489 | $17.1M | 0.02% | −13,142−14.2% | Reduced |
| Aquatic Capital Management LLC | 80,500 | $17.4M | 0.57% | +73,700+1,083.8% | Added |
| Woodline Partners LP | 80,600 | $17.4M | 0.16% | 00.0% | Unchanged |
| Chevy Chase Trust Holdings, Inc. | 80,965 | $17.5M | 0.06% | −704−0.9% | Reduced |
| State of New Jersey Common Pension Fund D | 82,025 | $17.7M | 0.05% | 00.0% | Unchanged |
| Danske Bank A/S | 83,854 | $18.1M | 0.06% | +83,854 | New |
| Skandinaviska Enskilda Banken AB (publ) | 85,595 | $18.5M | 0.09% | −100−0.1% | Reduced |
| Jane Street Group, LLC | 85,994 | $18.5M | 0.02% | −118,694−58.0% | Reduced |
| State of Wisconsin Investment Board | 88,563 | $19.1M | 0.05% | +11,001+14.2% | Added |
| SEI Investments Co | 90,451 | $19.5M | 0.03% | +837+0.9% | Added |
| United Capital Financial Advisers, LLC | 91,376 | $19.7M | 0.16% | −3,894−4.1% | Reduced |
| Treasurer of the State of North Carolina | 93,473 | $20.2M | 0.09% | −2,379−2.5% | Reduced |
| Toronto Dominion Bank | 95,684 | $20.6M | 0.03% | +3,444+3.7% | Added |
| Sprucegrove Investment Management Ltd | 96,855 | $20.9M | 0.84% | +34,100+54.3% | Added |
| Voya Investment Management LLC | 98,088 | $21.2M | 0.02% | −17,380−15.1% | Reduced |
| Storebrand Asset Management AS | 99,378 | $21.4M | 0.07% | −47,710−32.4% | Reduced |
| Armistice Capital, LLC | 100,049 | $21.6M | 0.57% | −99,951−50.0% | Reduced |
| Qube Research & Technologies Ltd | 100,845 | $21.7M | 0.04% | +100,845 | New |
| Natixis | 101,738 | $21.9M | 0.12% | +34,665+51.7% | Added |
| Twinbeech Capital LP | 102,251 | $22.0M | 0.45% | +102,251 | New |
| Federated Hermes, Inc. | 102,724 | $22.2M | 0.05% | +2,576+2.6% | Added |
| Bank of Nova Scotia | 103,059 | $22.2M | 0.04% | −57,204−35.7% | Reduced |
| Prudential Financial Inc | 104,945 | $22.6M | 0.03% | −24,148−18.7% | Reduced |
| Nordea Investment Management AB | 105,376 | $22.7M | 0.03% | −31,354−22.9% | Reduced |
| Letko, Brosseau & Associates Inc | 105,307 | $22.7M | 0.39% | +893+0.9% | Added |
| Swedbank AB | 106,383 | $22.9M | 0.03% | +227+0.2% | Added |
| DekaBank Deutsche Girozentrale | 109,198 | $23.5M | 0.04% | −174,070−61.5% | Reduced |
| Canada Pension Plan Investment Board | 109,159 | $23.5M | 0.02% | +3,233+3.1% | Added |
| New York State Common Retirement Fund | 109,175 | $23.5M | 0.03% | −14,028−11.4% | Reduced |
| Banco Bilbao Vizcaya Argentaria, S.A. | 110,908 | $23.9M | 0.27% | −3,992−3.5% | Reduced |
| Rafferty Asset Management, LLC | 112,816 | $24.3M | 0.09% | +16,934+17.7% | Added |
| APG Asset Management N.V. | 126,670 | $25.3M | 0.04% | +3,434+2.8% | Added |
| Macquarie Group Ltd | 120,721 | $26.0M | 0.03% | −134,394−52.7% | Reduced |
| Great West Life Assurance Co | 125,227 | $27.0M | 0.05% | −20,416−14.0% | Reduced |
| New York State Teachers Retirement System | 126,819 | $27.3M | 0.06% | −8,630−6.4% | Reduced |
| Railway Pension Investments Ltd | 127,722 | $27.5M | 0.27% | 00.0% | Unchanged |
| Zimmer Partners, LP | 129,950 | $28.0M | 0.61% | +13,250+11.4% | Added |
| Manufacturers Life Insurance Company, The | 132,425 | $28.6M | 0.03% | −2,751−2.0% | Reduced |
| Krensavage Asset Management, LLC | 134,068 | $28.9M | 12.82% | −26,412−16.5% | Reduced |
| Victory Capital Management Inc | 135,254 | $29.2M | 0.03% | +4,106+3.1% | Added |
| Korea Investment CORP | 140,871 | $30.4M | 0.08% | −34,924−19.9% | Reduced |
| Russell Investments Group, Ltd. | 146,628 | $31.6M | 0.05% | +23,358+18.9% | Added |
| Capital Fund Management S.A. | 147,430 | $31.8M | 0.39% | +147,430 | New |
| Citadel Advisors LLC | 149,298 | $32.2M | 0.03% | +144,037+2,737.8% | Added |
| Saratoga Research & Investment Management | 162,851 | $35.1M | 1.60% | −1,375−0.8% | Reduced |
| Principal Financial Group Inc | 166,602 | $35.9M | 0.02% | +2,069+1.3% | Added |
| Alyeska Investment Group, L.P. | 166,693 | $35.9M | 0.22% | −255,987−60.6% | Reduced |
| Raymond James & Associates | 168,124 | $36.3M | 0.02% | +26,048+18.3% | Added |
| Two Sigma Advisers, LP | 171,300 | $36.9M | 0.09% | +130,200+316.8% | Added |
| ProShare Advisors LLC | 174,000 | $37.5M | 0.10% | +29,890+20.7% | Added |
| SG Americas Securities, LLC | 176,262 | $38.0M | 0.19% | +162,083+1,143.1% | Added |
| Millennium Management LLC | 176,412 | $38.0M | 0.03% | +171,877+3,790.0% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 179,419 | $38.7M | 0.05% | +29,991+20.1% | Added |
| Wedge Capital Management L L P | 181,524 | $39.1M | 0.63% | +54,036+42.4% | Added |
| Mirae Asset Global Investments Co., Ltd. | 154,328 | $39.4M | 0.09% | −6,396−4.0% | Reduced |
| Thrivent Financial for Lutherans | 201,396 | $43.4M | 0.09% | −57,961−22.3% | Reduced |
| Alliancebernstein L.P. | 201,891 | $43.5M | 0.02% | −27,922−12.1% | Reduced |
| Envestnet Asset Management Inc | 217,738 | $47.0M | 0.02% | −18,713−7.9% | Reduced |
| Patient Capital Management, LLC | 217,887 | $47.0M | 2.29% | +217,887 | New |
| Citigroup Inc | 218,717 | $47.2M | 0.05% | −1,936−0.9% | Reduced |
| Wells Fargo & Company | 221,076 | $47.7M | 0.01% | −10,375−4.5% | Reduced |
| Hudson Bay Capital Management LP | 225,000 | $48.5M | 0.43% | +90,000+66.7% | Added |
| California State Teachers Retirement System | 227,072 | $49.0M | 0.06% | +650+0.3% | Added |
| State Board of Administration of Florida Retirement System | 178,436 | $49.6M | 0.12% | +19,115+12.0% | Added |
| Robeco Institutional Asset Management B.V. | 231,516 | $49.9M | 0.11% | −62,024−21.1% | Reduced |
| Susquehanna International Group, LLP | 243,414 | $52.5M | 0.08% | +164,824+209.7% | Added |
| Adage Capital Partners GP, L.L.C. | 251,582 | $54.2M | 0.10% | −104,226−29.3% | Reduced |
| Erste Asset Management GmbH | 264,414 | $57.1M | 0.78% | −10,498−3.8% | Reduced |
| Candriam Luxembourg S.C.A. | 267,042 | $57.6M | 0.37% | +81,757+44.1% | Added |
| Bank of Montreal | 236,815 | $58.0M | 0.03% | −55,585−19.0% | Reduced |
| Brown Advisory Inc | 272,880 | $58.8M | 0.08% | +101,576+59.3% | Added |
| Rhumbline Advisers | 278,644 | $60.1M | 0.06% | +597+0.2% | Added |
| BNP Paribas Arbitrage, SA | 281,401 | $60.7M | 0.07% | +83,799+42.4% | Added |
| Palo Alto Investors LP | 289,958 | $62.5M | 7.05% | −90,459−23.8% | Reduced |
| Credit Suisse AG | 291,725 | $62.9M | 0.06% | −26,696−8.4% | Reduced |
| Polar Capital Holdings Plc | 300,000 | $64.7M | 0.39% | 00.0% | Unchanged |
| D. E. Shaw & Co., Inc. | 300,008 | $64.7M | 0.08% | +276,073+1,153.4% | Added |
| National Pension Service | 314,116 | $67.7M | 0.08% | +11,799+3.9% | Added |