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, Q2 2025
Institutional positions in Biogen Inc. as of Jun 30, 2025. 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
- 867
- −3 vs. Q1 2025
- Shares held
- 130.1M
- +498.1K (+0.4%) vs. Q1 2025
- Total value
- $16.3B
- −$1.38B (−7.8%) vs. Q1 2025
- New holders
- 96
- 342 more added
- Sold out
- 99
- 263 more reduced
12 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2025: 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, Q2 2025
Shares, value and share of portfolio for each institution holding Biogen Inc.; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| State of New Jersey Common Pension Fund D | 48,246 | $6.06M | 0.02% | −131−0.3% | Reduced |
| Resona Asset Management Co.,Ltd. | 49,627 | $6.24M | 0.03% | +2,915+6.2% | Added |
| Ossiam | 50,487 | $6.34M | 0.07% | −1,694−3.2% | Reduced |
| Sector Gamma AS | 50,639 | $6.36M | 2.08% | +32,000+171.7% | Added |
| Nisa Investment Advisors, LLC | 50,902 | $6.39M | 0.03% | −102,315−66.8% | Reduced |
| Raymond James Financial Inc | 51,997 | $6.53M | 0.00% | +10,034+23.9% | Added |
| Quantinno Capital Management LP | 54,166 | $6.80M | 0.03% | +37,440+223.8% | Added |
| Nomura Asset Management Co Ltd | 54,341 | $6.82M | 0.02% | +555+1.0% | Added |
| SummitTX Capital, L.P. | 54,970 | $6.90M | 0.31% | +43,288+370.6% | Added |
| Macquarie Group Ltd | 55,324 | $6.95M | 0.01% | −3,780−6.4% | Reduced |
| Danske Bank A/S | 55,396 | $6.96M | 0.02% | −8,532−13.3% | Reduced |
| Creative Planning | 55,407 | $6.96M | 0.01% | +28,835+108.5% | Added |
| Cubist Systematic Strategies, LLC | 55,919 | $7.02M | 0.08% | −84,962−60.3% | Reduced |
| Envestnet Asset Management Inc | 56,076 | $7.04M | 0.00% | +3,782+7.2% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 56,238 | $7.06M | 0.01% | −7,912−12.3% | Reduced |
| Lazard Asset Management LLC | 58,131 | $7.30M | 0.01% | −441−0.8% | Reduced |
| Vinva Investment Management Ltd | 58,862 | $7.42M | 0.20% | +58,862 | New |
| AMF Pensionsforsakring AB | 59,115 | $7.42M | 0.05% | 00.0% | Unchanged |
| Edmond de Rothschild Holding S.A. | 59,680 | $7.50M | 0.12% | −390−0.6% | Reduced |
| Guggenheim Capital LLC | 59,827 | $7.51M | 0.06% | +6,701+12.6% | Added |
| Mirae Asset Global Investments Co., Ltd. | 61,023 | $7.66M | 0.03% | +5,939+10.8% | Added |
| Horizon Investments, LLC | 61,266 | $7.69M | 0.12% | +59,108+2,739.0% | Added |
| Korea Investment CORP | 61,508 | $7.72M | 0.02% | −4,900−7.4% | Reduced |
| Swiss Life Asset Management Ltd | 62,415 | $7.84M | 0.05% | +3,657+6.2% | Added |
| Asset Management One Co.,Ltd. | 62,810 | $7.89M | 0.02% | +1,390+2.3% | Added |
| Schonfeld Strategic Advisors LLC | 63,989 | $8.04M | 0.06% | +63,989 | New |
| Seizert Capital Partners, LLC | 66,245 | $8.32M | 0.37% | +15,788+31.3% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 66,320 | $8.33M | 0.02% | −121,483−64.7% | Reduced |
| Toronto Dominion Bank | 66,917 | $8.40M | 0.02% | +11,274+20.3% | Added |
| Skandinaviska Enskilda Banken AB (publ) | 67,231 | $8.45M | 0.04% | +20,500+43.9% | Added |
| Royal London Asset Management Ltd | 67,746 | $8.51M | 0.02% | −2,494−3.6% | Reduced |
| Treasurer of the State of North Carolina | 68,242 | $8.57M | 0.03% | +1,572+2.4% | Added |
| Caisse de Depot Et Placement du Quebec | 69,577 | $8.74M | 0.02% | −12,323−15.0% | Reduced |
| LPL Financial LLC | 70,194 | $8.82M | 0.00% | +25,873+58.4% | Added |
| Voya Investment Management LLC | 70,217 | $8.82M | 0.01% | +148+0.2% | Added |
| Banque Pictet & Cie SA | 72,025 | $9.05M | 0.09% | +3,751+5.5% | Added |
| Chevy Chase Trust Holdings, Inc. | 77,741 | $9.76M | 0.03% | +626+0.8% | Added |
| State of Wisconsin Investment Board | 78,768 | $9.89M | 0.02% | −9,808−11.1% | Reduced |
| Trexquant Investment LP | 80,822 | $10.2M | 0.11% | +36,334+81.7% | Added |
| Mitsubishi UFJ Trust & Banking Corp | 81,195 | $10.2M | 0.02% | +3,962+5.1% | Added |
| American Century Companies Inc | 81,253 | $10.2M | 0.01% | +20,778+34.4% | Added |
| Mackenzie Financial Corp | 82,336 | $10.3M | 0.01% | +35,652+76.4% | Added |
| Sphera Funds Management Ltd. | 82,738 | $10.4M | 2.72% | +60,000+263.9% | Added |
| APG Asset Management N.V. | 98,295 | $10.5M | 0.03% | +1,863+1.9% | Added |
| Cresset Asset Management, LLC | 85,967 | $10.8M | 0.05% | +84,007+4,286.1% | Added |
| Group One Trading, L.P. | 90,218 | $11.3M | 0.37% | +77,841+628.9% | Added |
| Woodline Partners LP | 95,560 | $12.0M | 0.06% | −29,602−23.7% | Reduced |
| Point72 Europe (London) LLP | 95,680 | $12.0M | 0.62% | +13,204+16.0% | Added |
| Handelsbanken Fonder AB | 97,601 | $12.3M | 0.04% | +17,347+21.6% | Added |
| Bank of Montreal | 103,314 | $13.0M | 0.01% | −29,654−22.3% | Reduced |
| Illinois Municipal Retirement Fund | 106,921 | $13.4M | 0.18% | +42,783+66.7% | Added |
| Manufacturers Life Insurance Company, The | 107,753 | $13.5M | 0.01% | −11,503−9.6% | Reduced |
| AXA S.A. | 108,572 | $13.6M | 0.04% | −45,397−29.5% | Reduced |
| Aviva PLC | 108,674 | $13.6M | 0.03% | +6,945+6.8% | Added |
| Leonteq Securities AG | 108,868 | $13.7M | 0.80% | +27,209+33.3% | Added |
| DekaBank Deutsche Girozentrale | 108,721 | $13.7M | 0.02% | −477−0.4% | Reduced |
| New York State Teachers Retirement System | 110,649 | $13.9M | 0.03% | +2,973+2.8% | Added |
| Freestone Grove Partners LP | 111,004 | $13.9M | 0.11% | +111,004 | New |
| Ieq Capital, LLC | 112,251 | $14.1M | 0.09% | +42,522+61.0% | Added |
| Banco Bilbao Vizcaya Argentaria, S.A. | 114,872 | $14.4M | 0.13% | −14,641−11.3% | Reduced |
| Letko, Brosseau & Associates Inc | 117,655 | $14.8M | 0.28% | +2,045+1.8% | Added |
| Capital Fund Management S.A. | 117,694 | $14.8M | 0.16% | −95,321−44.7% | Reduced |
| Federated Hermes, Inc. | 120,277 | $15.1M | 0.03% | +17,069+16.5% | Added |
| Nomura Holdings Inc | 120,815 | $15.2M | 0.12% | −92,955−43.5% | Reduced |
| J. L. Bainbridge & Co., Inc. | 122,345 | $15.4M | 1.41% | −2,177−1.7% | Reduced |
| Victory Capital Management Inc | 123,432 | $15.5M | 0.01% | −1,324−1.1% | Reduced |
| Nordea Investment Management AB | 125,935 | $15.8M | 0.01% | +6,811+5.7% | Added |
| Ameriprise Financial Inc | 126,056 | $15.8M | 0.00% | +23,505+22.9% | Added |
| ExodusPoint Capital Management, LP | 129,491 | $16.3M | 0.20% | +120,009+1,265.7% | Added |
| Great West Life Assurance Co | 130,933 | $16.5M | 0.03% | +5,426+4.3% | Added |
| State Board of Administration of Florida Retirement System | 134,847 | $16.9M | 0.03% | +1,300+1.0% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 139,832 | $17.6M | 0.03% | −4,761−3.3% | Reduced |
| New York State Common Retirement Fund | 140,245 | $17.6M | 0.02% | +9,099+6.9% | Added |
| TD Asset Management Inc | 143,027 | $18.0M | 0.02% | −141,349−49.7% | Reduced |
| National Bank of Canada | 143,212 | $18.0M | 0.02% | −58,321−28.9% | Reduced |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 147,482 | $18.5M | 0.02% | +14,591+11.0% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 149,128 | $18.7M | 0.03% | −8,333−5.3% | Reduced |
| Suvretta Capital Management, LLC | 151,890 | $19.1M | 0.72% | +31,154+25.8% | Added |
| Standard Life Aberdeen plc | 156,755 | $19.7M | 0.03% | +9,942+6.8% | Added |
| Principal Financial Group Inc | 159,761 | $20.1M | 0.01% | −5,075−3.1% | Reduced |
| Candriam Luxembourg S.C.A. | 163,315 | $20.5M | 0.12% | −23,465−12.6% | Reduced |
| Gotham Asset Management, LLC | 163,489 | $20.5M | 0.12% | +64,261+64.8% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 163,630 | $20.6M | 0.05% | +11,037+7.2% | Added |
| Marshall Wace, LLP | 165,955 | $20.8M | 0.02% | +160,055+2,712.8% | Added |
| Wells Fargo & Company | 165,962 | $20.8M | 0.00% | +11,477+7.4% | Added |
| KLP Kapitalforvaltning AS | 166,577 | $20.9M | 0.09% | +10,500+6.7% | Added |
| Rafferty Asset Management, LLC | 180,440 | $22.7M | 0.07% | −335−0.2% | Reduced |
| Acadian Asset Management LLC | 199,462 | $25.0M | 0.05% | +181,905+1,036.1% | Added |
| Logos Global Management LP | 200,000 | $25.1M | 3.36% | +200,000 | New |
| Palo Alto Investors LP | 205,759 | $25.8M | 5.50% | +836+0.4% | Added |
| Swedbank AB | 213,719 | $26.8M | 0.03% | +213,719 | New |
| Connor, Clark & Lunn Investment Management Ltd. | 217,738 | $27.3M | 0.10% | −60,096−21.6% | Reduced |
| Citigroup Inc | 223,240 | $28.0M | 0.02% | −79,375−26.2% | Reduced |
| Franklin Resources Inc | 229,010 | $28.8M | 0.01% | −359,107−61.1% | Reduced |
| Pictet Asset Management Holding SA | 229,342 | $28.9M | 0.03% | +11,812+5.4% | Added |
| Alliancebernstein L.P. | 231,108 | $29.0M | 0.01% | +2,054+0.9% | Added |
| ProShare Advisors LLC | 238,558 | $30.0M | 0.06% | +13,903+6.2% | Added |
| California State Teachers Retirement System | 238,691 | $30.0M | 0.03% | +8,156+3.5% | Added |
| Russell Investments Group, Ltd. | 242,053 | $30.4M | 0.04% | +34,404+16.6% | Added |
| FIL Ltd | 244,332 | $30.7M | 0.03% | +124,332+103.6% | Added |