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, Q4 2024
Institutional positions in Biogen Inc. as of Dec 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
- 879
- −27 vs. Q3 2024
- Shares held
- 132.4M
- +2.79M (+2.2%) vs. Q3 2024
- Total value
- $20.2B
- −$4.80B (−19.2%) vs. Q3 2024
- New holders
- 133
- 300 more added
- Sold out
- 160
- 322 more reduced
15 institutions that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2024: 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, Q4 2024
Shares, value and share of portfolio for each institution holding Biogen Inc.; share changes are against Q3 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Rafferty Asset Management, LLC | 189,520 | $29.0M | 0.10% | +29,319+18.3% | Added |
| Palo Alto Investors LP | 190,148 | $29.1M | 4.51% | −38,768−16.9% | Reduced |
| ProShare Advisors LLC | 198,326 | $30.3M | 0.07% | +29,294+17.3% | Added |
| Nisa Investment Advisors, LLC | 199,254 | $30.5M | 0.12% | +149,461+300.2% | Added |
| Candriam Luxembourg S.C.A. | 201,964 | $30.9M | 0.18% | −10,493−4.9% | Reduced |
| Jane Street Group, LLC | 202,638 | $31.0M | 0.05% | +92,349+83.7% | Added |
| Bank of Montreal | 211,336 | $32.3M | 0.02% | −8,575−3.9% | Reduced |
| Nomura Holdings Inc | 218,880 | $33.5M | 0.18% | +209,613+2,261.9% | Added |
| Verition Fund Management LLC | 227,130 | $34.7M | 0.18% | +182,769+412.0% | Added |
| California State Teachers Retirement System | 233,318 | $35.7M | 0.04% | +2,811+1.2% | Added |
| LSV Asset Management | 234,448 | $35.9M | 0.08% | +192,948+464.9% | Added |
| Capital Fund Management S.A. | 240,343 | $36.8M | 0.36% | +54,406+29.3% | Added |
| Hudson Bay Capital Management LP | 241,008 | $36.9M | 0.22% | −58,992−19.7% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 245,814 | $37.4M | 0.04% | +22,182+9.9% | Added |
| Royal Bank of Canada | 246,335 | $37.7M | 0.01% | −96,859−28.2% | Reduced |
| Pinebridge Investments, L.P. | 249,800 | $38.2M | 0.29% | +202,716+430.5% | Added |
| National Pension Service | 250,085 | $38.2M | 0.04% | −109,484−30.4% | Reduced |
| Canada Pension Plan Investment Board | 261,162 | $39.9M | 0.04% | +56,132+27.4% | Added |
| Citigroup Inc | 264,339 | $40.4M | 0.04% | +26,191+11.0% | Added |
| Rhumbline Advisers | 268,591 | $41.1M | 0.04% | −5,718−2.1% | Reduced |
| Causeway Capital Management LLC | 281,702 | $43.1M | 0.98% | +281,702 | New |
| Pictet Asset Management Holding SA | 293,693 | $44.9M | 0.05% | −178,832−37.8% | Reduced |
| Nuveen Asset Management, LLC | 300,741 | $46.0M | 0.01% | −22,446−6.9% | Reduced |
| Brown Advisory Inc | 347,566 | $53.1M | 0.07% | +14,339+4.3% | Added |
| TD Asset Management Inc | 355,706 | $54.4M | 0.05% | −15,295−4.1% | Reduced |
| Squarepoint Ops LLC | 371,201 | $56.8M | 0.15% | +140,553+60.9% | Added |
| BNP Paribas Arbitrage, SA | 377,961 | $57.8M | 0.04% | −35,399−8.6% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 391,496 | $59.9M | 0.04% | +21,368+5.8% | Added |
| Franklin Resources Inc | 394,391 | $60.3M | 0.02% | +19,644+5.2% | Added |
| California Public Employees Retirement System | 397,849 | $60.8M | 0.04% | +2,778+0.7% | Added |
| Robeco Institutional Asset Management B.V. | 408,276 | $62.4M | 0.12% | +133,568+48.6% | Added |
| Swiss National Bank | 411,500 | $62.9M | 0.04% | −20,600−4.8% | Reduced |
| Patient Capital Management, LLC | 413,960 | $63.3M | 2.92% | +158,018+61.7% | Added |
| Bank of America Corp | 416,222 | $63.6M | 0.01% | −241,929−36.8% | Reduced |
| HSBC Holdings PLC | 441,001 | $67.2M | 0.04% | +26,605+6.4% | Added |
| Worldquant Millennium Advisors LLC | 461,120 | $70.5M | 0.46% | +314,669+214.9% | Added |
| Susquehanna International Group, LLP | 485,048 | $74.2M | 0.11% | +223,901+85.7% | Added |
| OrbiMed Advisors LLC | 509,100 | $77.9M | 1.62% | −303,900−37.4% | Reduced |
| First Trust Advisors LP | 511,280 | $78.2M | 0.07% | +152,789+42.6% | Added |
| Two Sigma Advisers, LP | 534,600 | $81.8M | 0.19% | +107,000+25.0% | Added |
| AQR Capital Management LLC | 539,692 | $81.9M | 0.11% | +489,811+982.0% | Added |
| Allianz Asset Management GmbH | 535,954 | $82.0M | 0.12% | +10,441+2.0% | Added |
| Standard Life Aberdeen plc | 543,410 | $82.0M | 0.15% | −25,100−4.4% | Reduced |
| Millennium Management LLC | 543,844 | $83.2M | 0.07% | +145,708+36.6% | Added |
| Prudential Financial Inc | 576,276 | $88.1M | 0.12% | +152,992+36.1% | Added |
| Man Group plc | 686,550 | $105.0M | 0.32% | −170,285−19.9% | Reduced |
| Employees Provident Fund Board | 704,196 | $107.7M | 1.34% | +26,116+3.9% | Added |
| Massachusetts Financial Services Co | 732,376 | $112.0M | 0.04% | +21,192+3.0% | Added |
| FMR LLC | 757,570 | $115.8M | 0.01% | +376,356+98.7% | Added |
| Goldman Sachs Group Inc | 770,320 | $117.8M | 0.02% | −218,721−22.1% | Reduced |
| Barclays PLC | 838,354 | $128.2M | 0.06% | −82,902−9.0% | Reduced |
| Two Sigma Investments, LP | 852,336 | $130.3M | 0.30% | +203,634+31.4% | Added |
| Charles Schwab Investment Management Inc | 971,263 | $148.5M | 0.03% | +58,234+6.4% | Added |
| Bank of New York Mellon Corp | 974,795 | $149.1M | 0.03% | −28,340−2.8% | Reduced |
| Dimensional Fund Advisors LP | 1,022,024 | $156.3M | 0.04% | −92,316−8.3% | Reduced |
| UBS Group AG | 1,048,419 | $160.3M | 0.04% | +544,566+108.1% | Added |
| Van Eck Associates Corp | 1,066,460 | $163.1M | 0.21% | +967,523+977.9% | Added |
| Qube Research & Technologies Ltd | 1,090,842 | $166.8M | 0.27% | +741,497+212.3% | Added |
| Deutsche Bank AG | 1,169,570 | $178.9M | 0.07% | +455,285+63.7% | Added |
| Renaissance Technologies LLC | 1,192,206 | $182.3M | 0.27% | +239,500+25.1% | Added |
| Amundi | 1,216,990 | $183.5M | 0.06% | +319,478+35.6% | Added |
| Legal & General Group Plc | 1,230,007 | $188.1M | 0.05% | −21,946−1.8% | Reduced |
| UBS Asset Management Americas Inc | 1,533,813 | $234.6M | 0.05% | +381,122+33.1% | Added |
| Northern Trust Corp | 1,550,130 | $237.0M | 0.03% | +196,995+14.6% | Added |
| D. E. Shaw & Co., Inc. | 1,609,899 | $246.2M | 0.27% | +1,174,960+270.1% | Added |
| Beutel, Goodman & Co Ltd. | 1,746,477 | $267.1M | 1.45% | +2,323+0.1% | Added |
| Morgan Stanley | 1,782,356 | $272.6M | 0.02% | −104,890−5.6% | Reduced |
| Price T Rowe Associates Inc | 1,933,716 | $295.7M | 0.03% | +21,170+1.1% | Added |
| JPMorgan Chase & Co | 2,096,314 | $320.6M | 0.03% | −3,161,009−60.1% | Reduced |
| Invesco Ltd. | 2,128,807 | $325.5M | 0.06% | +499,074+30.6% | Added |
| Norges Bank | 2,325,199 | $355.6M | 0.05% | +60,807+2.7% | Added |
| Pacer Advisors, Inc. | 2,667,531 | $407.9M | 0.89% | +2,648,024+13,574.7% | Added |
| T. Rowe Price Investment Management, Inc. | 3,099,786 | $474.0M | 0.29% | −1,156,500−27.2% | Reduced |
| Geode Capital Management, LLC | 3,695,476 | $563.7M | 0.04% | +82,456+2.3% | Added |
| Wellington Management Group LLP | 4,930,723 | $754.0M | 0.14% | −200,470−3.9% | Reduced |
| State Street Corp | 7,398,248 | $1.13B | 0.04% | +53,288+0.7% | Added |
| BlackRock, Inc. | 15,473,710 | $2.37B | 0.05% | +126,669+0.8% | Added |
| Primecap Management Co | 16,046,209 | $2.45B | 1.90% | −268,870−1.6% | Reduced |
| Vanguard Group Inc | 16,748,875 | $2.56B | 0.04% | +70,368+0.4% | Added |
| Ra Capital Management, L.P. | 0 | $0 | 0.00% | −1,184,456−100.0% | Sold out |
| Parnassus Investments | 0 | $0 | 0.00% | −361,512−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −89,217−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −62,915−100.0% | Sold out |
| Twinbeech Capital LP | 0 | $0 | 0.00% | −61,264−100.0% | Sold out |
| Adage Capital Partners GP, L.L.C. | 0 | $0 | 0.00% | −45,799−100.0% | Sold out |
| Channing Capital Management, LLC | 0 | $0 | 0.00% | −36,974−100.0% | Sold out |
| Oppenheimer Asset Management Inc. | 0 | $0 | 0.00% | −35,928−100.0% | Sold out |
| Bedell Frazier Investment Counseling, LLC | 0 | $0 | 0.00% | −31,318−100.0% | Sold out |
| CenterBook Partners LP | 0 | $0 | 0.00% | −29,987−100.0% | Sold out |
| Sarissa Capital Management LP | 0 | $0 | 0.00% | −26,950−100.0% | Sold out |
| Evergreen Capital Management LLC | 0 | $0 | 0.00% | −22,354−100.0% | Sold out |
| American Assets Investment Management, LLC | 0 | $0 | 0.00% | −20,000−100.0% | Sold out |
| Silverarc Capital Management, LLC | 0 | $0 | 0.00% | −19,940−100.0% | Sold out |
| Arlington Partners LLC | 0 | $0 | 0.00% | −19,214−100.0% | Sold out |
| Fort Washington Investment Advisors Inc | 0 | $0 | 0.00% | −17,814−100.0% | Sold out |
| Walleye Trading LLC | 0 | $0 | 0.00% | −17,102−100.0% | Sold out |
| GTS Securities LLC | 0 | $0 | 0.00% | −13,294−100.0% | Sold out |
| Exome Asset Management LLC | 0 | $0 | 0.00% | −13,317−100.0% | Sold out |
| Two Sigma Securities, LLC | 0 | $0 | 0.00% | −10,659−100.0% | Sold out |
| International Assets Investment Management, LLC | 0 | $0 | 0.00% | −358,992−100.0% | Sold out |