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; 1,046 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 | 1,046 | $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 |
|---|---|---|---|---|---|
| Vanguard Group Inc | 16,748,875 | $2.56B | 0.04% | +70,368+0.4% | Added |
| Primecap Management Co | 16,046,209 | $2.45B | 1.90% | −268,870−1.6% | Reduced |
| BlackRock, Inc. | 15,473,710 | $2.37B | 0.05% | +126,669+0.8% | Added |
| State Street Corp | 7,398,248 | $1.13B | 0.04% | +53,288+0.7% | Added |
| Wellington Management Group LLP | 4,930,723 | $754.0M | 0.14% | −200,470−3.9% | Reduced |
| Geode Capital Management, LLC | 3,695,476 | $563.7M | 0.04% | +82,456+2.3% | Added |
| T. Rowe Price Investment Management, Inc. | 3,099,786 | $474.0M | 0.29% | −1,156,500−27.2% | Reduced |
| Pacer Advisors, Inc. | 2,667,531 | $407.9M | 0.89% | +2,648,024+13,574.7% | Added |
| Norges Bank | 2,325,199 | $355.6M | 0.05% | +60,807+2.7% | Added |
| Invesco Ltd. | 2,128,807 | $325.5M | 0.06% | +499,074+30.6% | Added |
| JPMorgan Chase & Co | 2,096,314 | $320.6M | 0.03% | −3,161,009−60.1% | Reduced |
| Price T Rowe Associates Inc | 1,933,716 | $295.7M | 0.03% | +21,170+1.1% | Added |
| Morgan Stanley | 1,782,356 | $272.6M | 0.02% | −104,890−5.6% | Reduced |
| Beutel, Goodman & Co Ltd. | 1,746,477 | $267.1M | 1.45% | +2,323+0.1% | Added |
| D. E. Shaw & Co., Inc. | 1,609,899 | $246.2M | 0.27% | +1,174,960+270.1% | Added |
| Northern Trust Corp | 1,550,130 | $237.0M | 0.03% | +196,995+14.6% | Added |
| UBS Asset Management Americas Inc | 1,533,813 | $234.6M | 0.05% | +381,122+33.1% | Added |
| Legal & General Group Plc | 1,230,007 | $188.1M | 0.05% | −21,946−1.8% | Reduced |
| Amundi | 1,216,990 | $183.5M | 0.06% | +319,478+35.6% | Added |
| Renaissance Technologies LLC | 1,192,206 | $182.3M | 0.27% | +239,500+25.1% | Added |
| Deutsche Bank AG | 1,169,570 | $178.9M | 0.07% | +455,285+63.7% | Added |
| Qube Research & Technologies Ltd | 1,090,842 | $166.8M | 0.27% | +741,497+212.3% | Added |
| Van Eck Associates Corp | 1,066,460 | $163.1M | 0.21% | +967,523+977.9% | Added |
| UBS Group AG | 1,048,419 | $160.3M | 0.04% | +544,566+108.1% | Added |
| Dimensional Fund Advisors LP | 1,022,024 | $156.3M | 0.04% | −92,316−8.3% | Reduced |
| Bank of New York Mellon Corp | 974,795 | $149.1M | 0.03% | −28,340−2.8% | Reduced |
| Charles Schwab Investment Management Inc | 971,263 | $148.5M | 0.03% | +58,234+6.4% | Added |
| Two Sigma Investments, LP | 852,336 | $130.3M | 0.30% | +203,634+31.4% | Added |
| Barclays PLC | 838,354 | $128.2M | 0.06% | −82,902−9.0% | Reduced |
| Goldman Sachs Group Inc | 770,320 | $117.8M | 0.02% | −218,721−22.1% | Reduced |
| FMR LLC | 757,570 | $115.8M | 0.01% | +376,356+98.7% | Added |
| Massachusetts Financial Services Co | 732,376 | $112.0M | 0.04% | +21,192+3.0% | Added |
| Employees Provident Fund Board | 704,196 | $107.7M | 1.34% | +26,116+3.9% | Added |
| Man Group plc | 686,550 | $105.0M | 0.32% | −170,285−19.9% | Reduced |
| Prudential Financial Inc | 576,276 | $88.1M | 0.12% | +152,992+36.1% | Added |
| Millennium Management LLC | 543,844 | $83.2M | 0.07% | +145,708+36.6% | Added |
| Standard Life Aberdeen plc | 543,410 | $82.0M | 0.15% | −25,100−4.4% | Reduced |
| Allianz Asset Management GmbH | 535,954 | $82.0M | 0.12% | +10,441+2.0% | Added |
| AQR Capital Management LLC | 539,692 | $81.9M | 0.11% | +489,811+982.0% | Added |
| Two Sigma Advisers, LP | 534,600 | $81.8M | 0.19% | +107,000+25.0% | Added |
| First Trust Advisors LP | 511,280 | $78.2M | 0.07% | +152,789+42.6% | Added |
| OrbiMed Advisors LLC | 509,100 | $77.9M | 1.62% | −303,900−37.4% | Reduced |
| Susquehanna International Group, LLP | 485,048 | $74.2M | 0.11% | +223,901+85.7% | Added |
| Worldquant Millennium Advisors LLC | 461,120 | $70.5M | 0.46% | +314,669+214.9% | Added |
| HSBC Holdings PLC | 441,001 | $67.2M | 0.04% | +26,605+6.4% | Added |
| Bank of America Corp | 416,222 | $63.6M | 0.01% | −241,929−36.8% | Reduced |
| Patient Capital Management, LLC | 413,960 | $63.3M | 2.92% | +158,018+61.7% | Added |
| Swiss National Bank | 411,500 | $62.9M | 0.04% | −20,600−4.8% | Reduced |
| Robeco Institutional Asset Management B.V. | 408,276 | $62.4M | 0.12% | +133,568+48.6% | Added |
| California Public Employees Retirement System | 397,849 | $60.8M | 0.04% | +2,778+0.7% | Added |
| Franklin Resources Inc | 394,391 | $60.3M | 0.02% | +19,644+5.2% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 391,496 | $59.9M | 0.04% | +21,368+5.8% | Added |
| BNP Paribas Arbitrage, SA | 377,961 | $57.8M | 0.04% | −35,399−8.6% | Reduced |
| Squarepoint Ops LLC | 371,201 | $56.8M | 0.15% | +140,553+60.9% | Added |
| TD Asset Management Inc | 355,706 | $54.4M | 0.05% | −15,295−4.1% | Reduced |
| Brown Advisory Inc | 347,566 | $53.1M | 0.07% | +14,339+4.3% | Added |
| Nuveen Asset Management, LLC | 300,741 | $46.0M | 0.01% | −22,446−6.9% | Reduced |
| Pictet Asset Management Holding SA | 293,693 | $44.9M | 0.05% | −178,832−37.8% | Reduced |
| Causeway Capital Management LLC | 281,702 | $43.1M | 0.98% | +281,702 | New |
| Rhumbline Advisers | 268,591 | $41.1M | 0.04% | −5,718−2.1% | Reduced |
| Citigroup Inc | 264,339 | $40.4M | 0.04% | +26,191+11.0% | Added |
| Canada Pension Plan Investment Board | 261,162 | $39.9M | 0.04% | +56,132+27.4% | Added |
| National Pension Service | 250,085 | $38.2M | 0.04% | −109,484−30.4% | Reduced |
| Pinebridge Investments, L.P. | 249,800 | $38.2M | 0.29% | +202,716+430.5% | Added |
| Royal Bank of Canada | 246,335 | $37.7M | 0.01% | −96,859−28.2% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 245,814 | $37.4M | 0.04% | +22,182+9.9% | Added |
| Hudson Bay Capital Management LP | 241,008 | $36.9M | 0.22% | −58,992−19.7% | Reduced |
| Capital Fund Management S.A. | 240,343 | $36.8M | 0.36% | +54,406+29.3% | Added |
| LSV Asset Management | 234,448 | $35.9M | 0.08% | +192,948+464.9% | Added |
| California State Teachers Retirement System | 233,318 | $35.7M | 0.04% | +2,811+1.2% | Added |
| Verition Fund Management LLC | 227,130 | $34.7M | 0.18% | +182,769+412.0% | Added |
| Nomura Holdings Inc | 218,880 | $33.5M | 0.18% | +209,613+2,261.9% | Added |
| Bank of Montreal | 211,336 | $32.3M | 0.02% | −8,575−3.9% | Reduced |
| Jane Street Group, LLC | 202,638 | $31.0M | 0.05% | +92,349+83.7% | Added |
| Candriam Luxembourg S.C.A. | 201,964 | $30.9M | 0.18% | −10,493−4.9% | Reduced |
| Nisa Investment Advisors, LLC | 199,254 | $30.5M | 0.12% | +149,461+300.2% | Added |
| ProShare Advisors LLC | 198,326 | $30.3M | 0.07% | +29,294+17.3% | Added |
| Palo Alto Investors LP | 190,148 | $29.1M | 4.51% | −38,768−16.9% | Reduced |
| Rafferty Asset Management, LLC | 189,520 | $29.0M | 0.10% | +29,319+18.3% | Added |
| Retirement Systems of Alabama | 185,383 | $28.3M | 0.11% | +154,062+491.9% | Added |
| Swedbank AB | 184,045 | $28.1M | 0.03% | −963−0.5% | Reduced |
| Healthcare of Ontario Pension Plan Trust Fund | 181,859 | $27.8M | 0.06% | +154,168+556.7% | Added |
| Fisher Asset Management, LLC | 180,924 | $27.7M | 0.01% | +114,156+171.0% | Added |
| Alliancebernstein L.P. | 180,723 | $27.6M | 0.01% | +1,592+0.9% | Added |
| Wedge Capital Management L L P | 179,191 | $27.4M | 0.49% | +26,530+17.4% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 178,468 | $27.3M | 0.07% | −220,936−55.3% | Reduced |
| National Bank of Canada | 177,889 | $27.2M | 0.04% | −13,576−7.1% | Reduced |
| Principal Financial Group Inc | 164,700 | $25.2M | 0.01% | −3,931−2.3% | Reduced |
| AXA S.A. | 161,636 | $24.7M | 0.08% | +103,677+178.9% | Added |
| Citadel Advisors LLC | 153,660 | $23.5M | 0.02% | −218,706−58.7% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 152,867 | $23.4M | 0.05% | +152,867 | New |
| Voloridge Investment Management, LLC | 151,678 | $23.2M | 0.08% | +151,678 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 144,152 | $22.0M | 0.06% | +74,503+107.0% | Added |
| Ameriprise Financial Inc | 144,023 | $22.0M | 0.01% | −1,006,463−87.5% | Reduced |
| Raymond James Financial Inc | 141,968 | $21.7M | 0.01% | +141,968 | New |
| Connor, Clark & Lunn Investment Management Ltd. | 140,320 | $21.5M | 0.10% | +117,576+517.0% | Added |
| State Board of Administration of Florida Retirement System | 133,547 | $20.4M | 0.04% | −9,285−6.5% | Reduced |
| Banco Bilbao Vizcaya Argentaria, S.A. | 127,282 | $19.4M | 0.20% | −2,418−1.9% | Reduced |
| Great West Life Assurance Co | 126,631 | $19.3M | 0.03% | −3,257−2.5% | Reduced |
| Rhenman & Partners Asset Management AB | 123,700 | $18.9M | 1.94% | +56,600+84.4% | Added |