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 |
|---|---|---|---|---|---|
| Nordea Investment Management AB | 125,935 | $15.8M | 0.01% | +6,811+5.7% | Added |
| Victory Capital Management Inc | 123,432 | $15.5M | 0.01% | −1,324−1.1% | Reduced |
| J. L. Bainbridge & Co., Inc. | 122,345 | $15.4M | 1.41% | −2,177−1.7% | Reduced |
| Nomura Holdings Inc | 120,815 | $15.2M | 0.12% | −92,955−43.5% | Reduced |
| Federated Hermes, Inc. | 120,277 | $15.1M | 0.03% | +17,069+16.5% | Added |
| Capital Fund Management S.A. | 117,694 | $14.8M | 0.16% | −95,321−44.7% | Reduced |
| Letko, Brosseau & Associates Inc | 117,655 | $14.8M | 0.28% | +2,045+1.8% | Added |
| Banco Bilbao Vizcaya Argentaria, S.A. | 114,872 | $14.4M | 0.13% | −14,641−11.3% | Reduced |
| Ieq Capital, LLC | 112,251 | $14.1M | 0.09% | +42,522+61.0% | Added |
| Freestone Grove Partners LP | 111,004 | $13.9M | 0.11% | +111,004 | New |
| New York State Teachers Retirement System | 110,649 | $13.9M | 0.03% | +2,973+2.8% | Added |
| DekaBank Deutsche Girozentrale | 108,721 | $13.7M | 0.02% | −477−0.4% | Reduced |
| Leonteq Securities AG | 108,868 | $13.7M | 0.80% | +27,209+33.3% | Added |
| Aviva PLC | 108,674 | $13.6M | 0.03% | +6,945+6.8% | Added |
| AXA S.A. | 108,572 | $13.6M | 0.04% | −45,397−29.5% | Reduced |
| Manufacturers Life Insurance Company, The | 107,753 | $13.5M | 0.01% | −11,503−9.6% | Reduced |
| Illinois Municipal Retirement Fund | 106,921 | $13.4M | 0.18% | +42,783+66.7% | Added |
| Bank of Montreal | 103,314 | $13.0M | 0.01% | −29,654−22.3% | Reduced |
| Handelsbanken Fonder AB | 97,601 | $12.3M | 0.04% | +17,347+21.6% | Added |
| Point72 Europe (London) LLP | 95,680 | $12.0M | 0.62% | +13,204+16.0% | Added |
| Woodline Partners LP | 95,560 | $12.0M | 0.06% | −29,602−23.7% | Reduced |
| Group One Trading, L.P. | 90,218 | $11.3M | 0.37% | +77,841+628.9% | Added |
| Cresset Asset Management, LLC | 85,967 | $10.8M | 0.05% | +84,007+4,286.1% | Added |
| APG Asset Management N.V. | 98,295 | $10.5M | 0.03% | +1,863+1.9% | Added |
| Sphera Funds Management Ltd. | 82,738 | $10.4M | 2.72% | +60,000+263.9% | Added |
| Mackenzie Financial Corp | 82,336 | $10.3M | 0.01% | +35,652+76.4% | Added |
| American Century Companies Inc | 81,253 | $10.2M | 0.01% | +20,778+34.4% | Added |
| Mitsubishi UFJ Trust & Banking Corp | 81,195 | $10.2M | 0.02% | +3,962+5.1% | Added |
| Trexquant Investment LP | 80,822 | $10.2M | 0.11% | +36,334+81.7% | Added |
| State of Wisconsin Investment Board | 78,768 | $9.89M | 0.02% | −9,808−11.1% | Reduced |
| Chevy Chase Trust Holdings, Inc. | 77,741 | $9.76M | 0.03% | +626+0.8% | Added |
| Banque Pictet & Cie SA | 72,025 | $9.05M | 0.09% | +3,751+5.5% | Added |
| Voya Investment Management LLC | 70,217 | $8.82M | 0.01% | +148+0.2% | Added |
| LPL Financial LLC | 70,194 | $8.82M | 0.00% | +25,873+58.4% | Added |
| Caisse de Depot Et Placement du Quebec | 69,577 | $8.74M | 0.02% | −12,323−15.0% | Reduced |
| Treasurer of the State of North Carolina | 68,242 | $8.57M | 0.03% | +1,572+2.4% | Added |
| Royal London Asset Management Ltd | 67,746 | $8.51M | 0.02% | −2,494−3.6% | Reduced |
| Skandinaviska Enskilda Banken AB (publ) | 67,231 | $8.45M | 0.04% | +20,500+43.9% | Added |
| Toronto Dominion Bank | 66,917 | $8.40M | 0.02% | +11,274+20.3% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 66,320 | $8.33M | 0.02% | −121,483−64.7% | Reduced |
| Seizert Capital Partners, LLC | 66,245 | $8.32M | 0.37% | +15,788+31.3% | Added |
| Schonfeld Strategic Advisors LLC | 63,989 | $8.04M | 0.06% | +63,989 | New |
| Asset Management One Co.,Ltd. | 62,810 | $7.89M | 0.02% | +1,390+2.3% | Added |
| Swiss Life Asset Management Ltd | 62,415 | $7.84M | 0.05% | +3,657+6.2% | Added |
| Korea Investment CORP | 61,508 | $7.72M | 0.02% | −4,900−7.4% | Reduced |
| Horizon Investments, LLC | 61,266 | $7.69M | 0.12% | +59,108+2,739.0% | Added |
| Mirae Asset Global Investments Co., Ltd. | 61,023 | $7.66M | 0.03% | +5,939+10.8% | Added |
| Guggenheim Capital LLC | 59,827 | $7.51M | 0.06% | +6,701+12.6% | Added |
| Edmond de Rothschild Holding S.A. | 59,680 | $7.50M | 0.12% | −390−0.6% | Reduced |
| AMF Pensionsforsakring AB | 59,115 | $7.42M | 0.05% | 00.0% | Unchanged |
| Vinva Investment Management Ltd | 58,862 | $7.42M | 0.20% | +58,862 | New |
| Lazard Asset Management LLC | 58,131 | $7.30M | 0.01% | −441−0.8% | Reduced |
| Healthcare of Ontario Pension Plan Trust Fund | 56,238 | $7.06M | 0.01% | −7,912−12.3% | Reduced |
| Envestnet Asset Management Inc | 56,076 | $7.04M | 0.00% | +3,782+7.2% | Added |
| Cubist Systematic Strategies, LLC | 55,919 | $7.02M | 0.08% | −84,962−60.3% | Reduced |
| Creative Planning | 55,407 | $6.96M | 0.01% | +28,835+108.5% | Added |
| Danske Bank A/S | 55,396 | $6.96M | 0.02% | −8,532−13.3% | Reduced |
| Macquarie Group Ltd | 55,324 | $6.95M | 0.01% | −3,780−6.4% | Reduced |
| SummitTX Capital, L.P. | 54,970 | $6.90M | 0.31% | +43,288+370.6% | Added |
| Nomura Asset Management Co Ltd | 54,341 | $6.82M | 0.02% | +555+1.0% | Added |
| Quantinno Capital Management LP | 54,166 | $6.80M | 0.03% | +37,440+223.8% | Added |
| Raymond James Financial Inc | 51,997 | $6.53M | 0.00% | +10,034+23.9% | Added |
| Nisa Investment Advisors, LLC | 50,902 | $6.39M | 0.03% | −102,315−66.8% | Reduced |
| Sector Gamma AS | 50,639 | $6.36M | 2.08% | +32,000+171.7% | Added |
| Ossiam | 50,487 | $6.34M | 0.07% | −1,694−3.2% | Reduced |
| Resona Asset Management Co.,Ltd. | 49,627 | $6.24M | 0.03% | +2,915+6.2% | Added |
| State of New Jersey Common Pension Fund D | 48,246 | $6.06M | 0.02% | −131−0.3% | Reduced |
| Lansforsakringar Fondforvaltning AB (publ) | 47,747 | $6.00M | 0.03% | −385−0.8% | Reduced |
| Erste Asset Management GmbH | 46,623 | $5.88M | 0.05% | −4,333−8.5% | Reduced |
| Cerity Partners LLC | 46,552 | $5.85M | 0.01% | +6,184+15.3% | Added |
| Oversea-Chinese Banking CORP Ltd | 45,980 | $5.77M | 0.16% | −7,300−13.7% | Reduced |
| Public Employees Retirement System of Ohio | 45,355 | $5.70M | 0.02% | +492+1.1% | Added |
| CIBC Asset Management Inc | 45,090 | $5.66M | 0.02% | −2,171−4.6% | Reduced |
| Nissay Asset Management Corp | 44,818 | $5.63M | 0.03% | −2,386−5.1% | Reduced |
| Los Angeles Capital Management LLC | 44,358 | $5.57M | 0.02% | +1,048+2.4% | Added |
| Arizona State Retirement System | 42,753 | $5.37M | 0.03% | +639+1.5% | Added |
| Hillman Capital Management, Inc. | 41,972 | $5.27M | 2.88% | −2,053−4.7% | Reduced |
| Generali Asset Management SPA SGR | 41,682 | $5.23M | 0.12% | +2,518+6.4% | Added |
| Grimes & Company, Inc. | 41,024 | $5.15M | 0.14% | −18,310−30.9% | Reduced |
| Teacher Retirement System of Texas | 40,975 | $5.15M | 0.02% | +1,103+2.8% | Added |
| Gateway Investment Advisers LLC | 40,475 | $5.08M | 0.06% | −784−1.9% | Reduced |
| Daiwa Securities Group Inc. | 39,128 | $4.91M | 0.02% | −4,265−9.8% | Reduced |
| Generali Investments CEE, investicni spolecnost, a.s. | 38,755 | $4.87M | 0.40% | +11,695+43.2% | Added |
| HRT Financial LP | 38,276 | $4.81M | 0.02% | −140,066−78.5% | Reduced |
| Natixis Advisors, L.P. | 38,199 | $4.80M | 0.01% | +11,292+42.0% | Added |
| The PNC Financial Services Group, Inc. | 38,089 | $4.78M | 0.00% | +12,894+51.2% | Added |
| Mercer Global Advisors Inc | 37,615 | $4.73M | 0.01% | +28,690+321.5% | Added |
| MetLife Investment Management | 37,325 | $4.69M | 0.03% | −677−1.8% | Reduced |
| Squarepoint Ops LLC | 37,161 | $4.67M | 0.01% | −378,349−91.1% | Reduced |
| Jefferies Financial Group Inc. | 37,117 | $4.66M | 0.08% | −12,877−25.8% | Reduced |
| Calamos Advisors LLC | 36,970 | $4.64M | 0.02% | 00.0% | Unchanged |
| NEOS Investment Management LLC | 36,811 | $4.62M | 0.06% | +14,113+62.2% | Added |
| State of Tennessee, Treasury Department | 36,544 | $4.59M | 0.02% | −7,953−17.9% | Reduced |
| GF Fund Management Co. Ltd. | 36,453 | $4.58M | 0.09% | +1,018+2.9% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 35,937 | $4.51M | 0.02% | +2,463+7.4% | Added |
| Mariner, LLC | 35,915 | $4.51M | 0.01% | +11,910+49.6% | Added |
| Czech National Bank | 35,816 | $4.50M | 0.04% | +2,196+6.5% | Added |
| Ensign Peak Advisors, Inc | 35,761 | $4.49M | 0.01% | −2,351−6.2% | Reduced |
| IFM Investors Pty Ltd | 35,752 | $4.49M | 0.04% | +2,023+6.0% | Added |
| KBC Group NV | 35,204 | $4.42M | 0.01% | +864+2.5% | Added |