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 2025
Institutional positions in Biogen Inc. as of Mar 31, 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
- 882
- +16 vs. Q4 2024
- Shares held
- 129.8M
- −2.03M (−1.5%) vs. Q4 2024
- Total value
- $17.7B
- −$2.41B (−11.9%) vs. Q4 2024
- New holders
- 123
- 331 more added
- Sold out
- 107
- 273 more reduced
13 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2025
Shares, value and share of portfolio for each institution holding Biogen Inc.; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Great West Life Assurance Co | 125,507 | $17.2M | 0.03% | −1,124−0.9% | Reduced |
| Woodline Partners LP | 125,162 | $17.1M | 0.11% | +37,005+42.0% | Added |
| Victory Capital Management Inc | 124,756 | $17.1M | 0.02% | +5,723+4.8% | Added |
| J. L. Bainbridge & Co., Inc. | 124,522 | $17.0M | 1.73% | +26,539+27.1% | Added |
| Suvretta Capital Management, LLC | 120,736 | $16.5M | 0.67% | +5,300+4.6% | Added |
| FIL Ltd | 120,000 | $16.4M | 0.02% | +15,283+14.6% | Added |
| Manufacturers Life Insurance Company, The | 119,256 | $16.3M | 0.02% | −4,410−3.6% | Reduced |
| Nordea Investment Management AB | 119,124 | $16.3M | 0.02% | +1,161+1.0% | Added |
| Letko, Brosseau & Associates Inc | 115,610 | $15.8M | 0.34% | −3,972−3.3% | Reduced |
| Cutter Capital Management, LP | 113,500 | $15.5M | 6.76% | +113,500 | New |
| DekaBank Deutsche Girozentrale | 109,198 | $15.0M | 0.03% | +477+0.4% | Added |
| New York State Teachers Retirement System | 107,676 | $14.7M | 0.03% | −3,452−3.1% | Reduced |
| Tudor Investment Corp Et Al | 105,851 | $14.5M | 0.13% | +83,848+381.1% | Added |
| Federated Hermes, Inc. | 103,208 | $14.1M | 0.03% | +1,805+1.8% | Added |
| Ameriprise Financial Inc | 102,551 | $14.0M | 0.00% | −41,472−28.8% | Reduced |
| Aviva PLC | 101,729 | $13.9M | 0.03% | +13,998+16.0% | Added |
| Gotham Asset Management, LLC | 99,228 | $13.6M | 0.11% | +9,602+10.7% | Added |
| Nuveen, LLC | 146,431 | $12.5M | 0.00% | +146,431 | New |
| APG Asset Management N.V. | 96,432 | $12.2M | 0.04% | −9,014−8.5% | Reduced |
| State of Wisconsin Investment Board | 88,576 | $12.1M | 0.03% | +8,435+10.5% | Added |
| Point72 Europe (London) LLP | 82,476 | $11.3M | 0.78% | +82,476 | New |
| Caisse de Depot Et Placement du Quebec | 81,900 | $11.2M | 0.02% | +81,900 | New |
| Leonteq Securities AG | 81,659 | $11.1M | 0.85% | −32,704−28.6% | Reduced |
| Handelsbanken Fonder AB | 80,254 | $11.0M | 0.05% | −1,681−2.1% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 77,233 | $10.6M | 0.03% | −4,381−5.4% | Reduced |
| Chevy Chase Trust Holdings, Inc. | 77,115 | $10.6M | 0.03% | +295+0.4% | Added |
| Engineers Gate Manager LP | 76,958 | $10.5M | 0.18% | +48,915+174.4% | Added |
| Jump Financial, LLC | 73,129 | $10.0M | 0.15% | −21,425−22.7% | Reduced |
| M&G Plc | 72,712 | $9.96M | 0.05% | +3,873+5.6% | Added |
| Glenmede Trust Co NA | 71,547 | $9.79M | 0.05% | −17,476−19.6% | Reduced |
| Adage Capital Partners GP, L.L.C. | 70,767 | $9.68M | 0.02% | +70,767 | New |
| Royal London Asset Management Ltd | 70,240 | $9.61M | 0.02% | +5,283+8.1% | Added |
| Voya Investment Management LLC | 70,069 | $9.59M | 0.01% | −7,512−9.7% | Reduced |
| Walleye Capital LLC | 69,905 | $9.57M | 0.11% | +59,865+596.3% | Added |
| Ieq Capital, LLC | 69,729 | $9.54M | 0.08% | +10,195+17.1% | Added |
| Banque Pictet & Cie SA | 68,274 | $9.34M | 0.10% | +4,780+7.5% | Added |
| Treasurer of the State of North Carolina | 66,670 | $9.12M | 0.04% | −22,017−24.8% | Reduced |
| Korea Investment CORP | 66,408 | $9.09M | 0.02% | +6,300+10.5% | Added |
| Twinbeech Capital LP | 64,253 | $8.79M | 0.16% | +64,253 | New |
| Healthcare of Ontario Pension Plan Trust Fund | 64,150 | $8.78M | 0.02% | −117,709−64.7% | Reduced |
| Illinois Municipal Retirement Fund | 64,138 | $8.78M | 0.13% | +1,957+3.1% | Added |
| Danske Bank A/S | 63,928 | $8.75M | 0.03% | −15,870−19.9% | Reduced |
| Asset Management One Co.,Ltd. | 61,420 | $8.40M | 0.03% | +3,194+5.5% | Added |
| Jacobs Levy Equity Management, Inc | 61,393 | $8.40M | 0.03% | +61,393 | New |
| Schroder Investment Management Group | 60,335 | $8.35M | 0.01% | +17,720+41.6% | Added |
| American Century Companies Inc | 60,475 | $8.28M | 0.01% | −54,899−47.6% | Reduced |
| Edmond de Rothschild Holding S.A. | 60,070 | $8.22M | 0.15% | 00.0% | Unchanged |
| Grimes & Company, Inc. | 59,334 | $8.12M | 0.25% | +33,721+131.7% | Added |
| AMF Pensionsforsakring AB | 59,115 | $8.09M | 0.06% | 00.0% | Unchanged |
| Macquarie Group Ltd | 59,104 | $8.09M | 0.01% | +6,144+11.6% | Added |
| Swiss Life Asset Management Ltd | 58,758 | $8.04M | 0.06% | +6,941+13.4% | Added |
| Lazard Asset Management LLC | 58,572 | $8.01M | 0.01% | +4,096+7.5% | Added |
| Worldquant Millennium Advisors LLC | 57,013 | $7.80M | 0.05% | −404,107−87.6% | Reduced |
| Centre Asset Management, LLC | 56,894 | $7.79M | 2.00% | +5,364+10.4% | Added |
| Mirae Asset Global Investments Co., Ltd. | 55,084 | $7.62M | 0.03% | +7,531+15.8% | Added |
| Toronto Dominion Bank | 55,643 | $7.61M | 0.02% | −17,028−23.4% | Reduced |
| Banco Santander, S.A. | 54,991 | $7.52M | 0.08% | +7,182+15.0% | Added |
| Nomura Asset Management Co Ltd | 53,786 | $7.36M | 0.02% | +4,694+9.6% | Added |
| Oversea-Chinese Banking CORP Ltd | 53,280 | $7.33M | 0.21% | +9,014+20.4% | Added |
| Guggenheim Capital LLC | 53,126 | $7.27M | 0.07% | −7,651−12.6% | Reduced |
| Envestnet Asset Management Inc | 52,294 | $7.16M | 0.00% | +5,926+12.8% | Added |
| Ossiam | 52,181 | $7.14M | 0.10% | +1,818+3.6% | Added |
| Erste Asset Management GmbH | 50,956 | $7.05M | 0.09% | −8,360−14.1% | Reduced |
| Seizert Capital Partners, LLC | 50,457 | $6.90M | 0.32% | +10,786+27.2% | Added |
| Tredje AP-fonden | 50,000 | $6.84M | 0.06% | +50,000 | New |
| Jefferies Financial Group Inc. | 49,994 | $6.84M | 0.12% | −33,853−40.4% | Reduced |
| Point72 (DIFC) Ltd | 49,849 | $6.82M | 0.66% | +49,778+70,109.9% | Added |
| Rhenman & Partners Asset Management AB | 49,500 | $6.77M | 0.78% | −74,200−60.0% | Reduced |
| Factory Mutual Insurance Co | 49,200 | $6.73M | 0.08% | 00.0% | Unchanged |
| State of New Jersey Common Pension Fund D | 48,377 | $6.62M | 0.03% | −3,783−7.3% | Reduced |
| Lansforsakringar Fondforvaltning AB (publ) | 48,132 | $6.59M | 0.04% | −130−0.3% | Reduced |
| CIBC Asset Management Inc | 47,261 | $6.47M | 0.02% | +454+1.0% | Added |
| Nissay Asset Management Corp | 47,204 | $6.46M | 0.04% | +3,325+7.6% | Added |
| Resona Asset Management Co.,Ltd. | 46,712 | $6.40M | 0.04% | +2,104+4.7% | Added |
| Skandinaviska Enskilda Banken AB (publ) | 46,731 | $6.39M | 0.03% | +3,684+8.6% | Added |
| Mackenzie Financial Corp | 46,684 | $6.39M | 0.01% | +12,838+37.9% | Added |
| Andra AP-fonden | 46,200 | $6.32M | 0.10% | +12,500+37.1% | Added |
| Public Employees Retirement System of Ohio | 44,863 | $6.14M | 0.02% | −5,188−10.4% | Reduced |
| Assenagon Asset Management S.A. | 44,796 | $6.13M | 0.01% | +1,336+3.1% | Added |
| State of Tennessee, Treasury Department | 44,497 | $6.09M | 0.02% | +26,195+143.1% | Added |
| Trexquant Investment LP | 44,488 | $6.09M | 0.07% | +21,151+90.6% | Added |
| LPL Financial LLC | 44,321 | $6.06M | 0.00% | +18,183+69.6% | Added |
| Corebridge Financial, Inc. | 44,254 | $6.06M | 0.03% | −1,238−2.7% | Reduced |
| Hillman Capital Management, Inc. | 44,025 | $6.02M | 2.96% | +959+2.2% | Added |
| Daiwa Securities Group Inc. | 43,393 | $5.94M | 0.03% | +6,172+16.6% | Added |
| Los Angeles Capital Management LLC | 43,310 | $5.93M | 0.03% | +43,310 | New |
| Lido Advisors, LLC | 43,045 | $5.89M | 0.03% | +1,447+3.5% | Added |
| Arizona State Retirement System | 42,114 | $5.76M | 0.04% | +1,344+3.3% | Added |
| Raymond James Financial Inc | 41,963 | $5.74M | 0.00% | −100,005−70.4% | Reduced |
| Gateway Investment Advisers LLC | 41,259 | $5.65M | 0.06% | +57+0.1% | Added |
| Cerity Partners LLC | 40,368 | $5.52M | 0.01% | +18,277+82.7% | Added |
| Credit Agricole S A | 40,323 | $5.52M | 0.02% | +3,859+10.6% | Added |
| Teacher Retirement System of Texas | 39,872 | $5.46M | 0.02% | −12,285−23.6% | Reduced |
| State of Michigan Retirement System | 39,703 | $5.43M | 0.03% | −23,800−37.5% | Reduced |
| Generali Asset Management SPA SGR | 39,164 | $5.36M | 0.13% | +22,969+141.8% | Added |
| Ensign Peak Advisors, Inc | 38,112 | $5.22M | 0.01% | +16,443+75.9% | Added |
| MetLife Investment Management | 38,002 | $5.20M | 0.03% | −562−1.5% | Reduced |
| Altrinsic Global Advisors LLC | 37,698 | $5.16M | 0.25% | −2,026−5.1% | Reduced |
| Jane Street Group, LLC | 37,254 | $5.10M | 0.01% | −165,384−81.6% | Reduced |
| Calamos Advisors LLC | 36,970 | $5.06M | 0.02% | +412+1.1% | Added |