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, Q3 2021
Institutional positions in Biogen Inc. as of Sep 30, 2021. 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
- 1,044
- −50 vs. Q2 2021
- Shares held
- 123.8M
- −1.32M (−1.1%) vs. Q2 2021
- Total value
- $35.1B
- −$8.22B (−19.0%) vs. Q2 2021
- New holders
- 74
- 351 more added
- Sold out
- 124
- 398 more reduced
13 institutions that held it in Q2 2021 haven't filed for Q3 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2021: 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, Q3 2021
Shares, value and share of portfolio for each institution holding Biogen Inc.; share changes are against Q2 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Mangrove Partners | 45,872 | $13.0M | 1.43% | +45,872 | New |
| US Bancorp | 45,830 | $13.0M | 0.02% | −2,234−4.6% | Reduced |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 44,221 | $12.5M | 0.12% | −700−1.6% | Reduced |
| GMT Capital Corp | 43,850 | $12.4M | 1.09% | −3,100−6.6% | Reduced |
| Calamos Advisors LLC | 43,275 | $12.2M | 0.06% | +3,818+9.7% | Added |
| DnB Asset Management AS | 43,266 | $12.2M | 0.08% | +2,088+5.1% | Added |
| Private Advisor Group, LLC | 42,461 | $12.0M | 0.08% | +34,676+445.4% | Added |
| Arizona State Retirement System | 41,984 | $11.9M | 0.10% | −697−1.6% | Reduced |
| Grimes & Company, Inc. | 41,841 | $11.8M | 0.52% | −130.0% | Reduced |
| Premier Asset Management LLC | 41,814 | $11.8M | 1.64% | +2,502+6.4% | Added |
| Quinn Opportunity Partners LLC | 41,511 | $11.7M | 0.75% | +2,000+5.1% | Added |
| CSM Advisors, LLC | 40,811 | $11.5M | 0.86% | −100.0% | Reduced |
| Amalgamated Bank | 40,303 | $11.4M | 0.10% | −2,182−5.1% | Reduced |
| Atwood & Palmer Inc | 40,171 | $11.4M | 1.01% | +353+0.9% | Added |
| Mackenzie Financial Corp | 39,814 | $11.3M | 0.02% | −6,627−14.3% | Reduced |
| Profund Advisors LLC | 38,511 | $10.9M | 0.37% | −485−1.2% | Reduced |
| NN Investment Partners Holdings N.V. | 38,478 | $10.9M | 0.06% | +8,264+27.4% | Added |
| Factory Mutual Insurance Co | 38,365 | $10.9M | 0.14% | 00.0% | Unchanged |
| EULAV Asset Management | 37,015 | $10.5M | 0.28% | +150.0% | Added |
| Illinois Municipal Retirement Fund | 36,066 | $10.2M | 0.38% | +5,210+16.9% | Added |
| Magnetar Financial LLC | 35,442 | $10.0M | 0.10% | +24,737+231.1% | Added |
| Leonteq Securities AG | 35,416 | $10.0M | 0.54% | +34,169+2,740.1% | Added |
| MetLife Investment Management | 33,661 | $9.53M | 0.09% | −1,245−3.6% | Reduced |
| USS Investment Management Ltd | 33,643 | $9.52M | 0.08% | +6,168+22.4% | Added |
| North Growth Management Ltd. | 34,000 | $9.50M | 1.67% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 33,473 | $9.47M | 0.02% | −2,967−8.1% | Reduced |
| Sofinnova Investments, Inc. | 33,220 | $9.40M | 0.60% | −77,380−70.0% | Reduced |
| Ikarian Capital, LLC | 32,243 | $9.12M | 2.09% | −93,719−74.4% | Reduced |
| Gulf International Bank (UK) Ltd | 31,808 | $9.00M | 0.12% | −366−1.1% | Reduced |
| Easterly Investment Partners LLC | 31,471 | $8.91M | 0.60% | +31,471 | New |
| Forsta Ap-Fonden | 31,400 | $8.89M | 0.10% | −6,600−17.4% | Reduced |
| Citizens Financial Group Inc | 31,151 | $8.82M | 0.33% | +1,834+6.3% | Added |
| Point72 Asset Management, L.P. | 30,852 | $8.73M | 0.04% | −214,654−87.4% | Reduced |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 30,446 | $8.62M | 0.01% | −6,912−18.5% | Reduced |
| Janney Montgomery Scott LLC | 29,794 | $8.43M | 0.04% | +101+0.3% | Added |
| Rafferty Asset Management, LLC | 29,167 | $8.25M | 0.06% | +9,718+50.0% | Added |
| Hillman Capital Management, Inc. | 28,289 | $8.01M | 2.81% | +1,050+3.9% | Added |
| PFS Investments Inc. | 29,344 | $8.00M | 0.17% | −160−0.5% | Reduced |
| ACG Wealth | 27,973 | $7.92M | 1.04% | −265−0.9% | Reduced |
| CIBC Asset Management Inc | 27,876 | $7.89M | 0.03% | +275+1.0% | Added |
| British Columbia Investment Management Corp | 27,865 | $7.89M | 0.05% | −347−1.2% | Reduced |
| Teacher Retirement System of Texas | 27,667 | $7.83M | 0.04% | −21,837−44.1% | Reduced |
| Commonwealth Equity Services, LLC | 27,225 | $7.70M | 0.02% | −485−1.8% | Reduced |
| Meeder Asset Management Inc | 27,178 | $7.69M | 0.40% | +6,663+32.5% | Added |
| Public Employees Retirement Association of Colorado | 26,996 | $7.64M | 0.03% | −122−0.4% | Reduced |
| Susquehanna Fundamental Investments, LLC | 26,862 | $7.60M | 0.14% | +26,862 | New |
| Utah Retirement Systems | 26,829 | $7.59M | 0.10% | −1,700−6.0% | Reduced |
| Vident Investment Advisory, LLC | 26,563 | $7.52M | 0.23% | −3,583−11.9% | Reduced |
| Bokf, NA | 26,507 | $7.50M | 0.13% | +26,507 | New |
| Banco Santander, S.A. | 25,664 | $7.26M | 0.04% | +71+0.3% | Added |
| International Biotechnology Trust PLC | 25,500 | $7.21M | 1.77% | −23,000−47.4% | Reduced |
| ING Groep NV | 25,135 | $7.11M | 0.09% | +115+0.5% | Added |
| Squarepoint Ops LLC | 25,076 | $7.10M | 0.05% | +3,383+15.6% | Added |
| Sprott Inc. | 25,000 | $7.08M | 0.52% | 00.0% | Unchanged |
| Bank of Nova Scotia | 24,306 | $6.88M | 0.01% | +1,684+7.4% | Added |
| Auxier Asset Management | 23,985 | $6.79M | 1.15% | −145−0.6% | Reduced |
| Quantitative Investment Management, LLC | 23,817 | $6.74M | 0.61% | −5,778−19.5% | Reduced |
| APG Asset Management N.V. | 27,261 | $6.66M | 0.01% | −36,000−56.9% | Reduced |
| MEAG MUNICH ERGO, Kapitalanlagegesellschaft mbH | 23,247 | $6.58M | 1.14% | +18,641+404.7% | Added |
| Texas Permanent School Fund | 23,024 | $6.52M | 0.08% | −1,988−7.9% | Reduced |
| Mackay Shields LLC | 22,938 | $6.49M | 0.06% | −1,089−4.5% | Reduced |
| Traynor Capital Management, Inc. | 22,730 | $6.43M | 0.88% | −2,353−9.4% | Reduced |
| M&T Bank Corp | 22,499 | $6.37M | 0.03% | −2,100−8.5% | Reduced |
| Westpac Banking Corp | 22,455 | $6.35M | 0.07% | −3,609−13.8% | Reduced |
| Point72 Hong Kong Ltd | 22,359 | $6.33M | 0.49% | +6,679+42.6% | Added |
| Banque Pictet & Cie SA | 22,262 | $6.30M | 0.07% | +7,338+49.2% | Added |
| Livforsakringsbolaget Skandia, Omsesidigt | 21,987 | $6.22M | 0.39% | −200−0.9% | Reduced |
| Natixis Advisors, L.P. | 21,925 | $6.20M | 0.03% | +1,920+9.6% | Added |
| Alberta Investment Management Corp | 21,700 | $6.14M | 0.05% | +17,100+371.7% | Added |
| SG Americas Securities, LLC | 21,299 | $6.03M | 0.03% | +8,455+65.8% | Added |
| Employees Retirement System of Texas | 20,800 | $5.89M | 0.07% | −2,100−9.2% | Reduced |
| Fort Washington Investment Advisors Inc | 20,645 | $5.84M | 0.04% | −100−0.5% | Reduced |
| Comerica Bank | 22,007 | $5.83M | 0.04% | −1,671−7.1% | Reduced |
| IFM Investors Pty Ltd | 20,449 | $5.79M | 0.12% | −80−0.4% | Reduced |
| Moore Capital Management, LP | 20,206 | $5.72M | 0.12% | −58,952−74.5% | Reduced |
| LMR Partners LLP | 20,196 | $5.71M | 0.08% | −2,610−11.4% | Reduced |
| ICICI Prudential Asset Management Co Ltd | 20,144 | $5.70M | 0.96% | +3,166+18.6% | Added |
| Capital Fund Management S.A. | 20,022 | $5.67M | 0.15% | +20,022 | New |
| Hudson Bay Capital Management LP | 20,000 | $5.66M | 0.08% | +5,000+33.3% | Added |
| Murchinson Ltd. | 20,000 | $5.66M | 2.81% | +5,000+33.3% | Added |
| Varma Mutual Pension Insurance Co | 20,000 | $5.66M | 0.09% | +10,000+100.0% | Added |
| Mutual of America Capital Management LLC | 19,543 | $5.53M | 0.05% | −81−0.4% | Reduced |
| Sectoral Asset Management Inc | 19,432 | $5.50M | 0.46% | 00.0% | Unchanged |
| HighTower Advisors, LLC | 19,345 | $5.48M | 0.01% | +385+2.0% | Added |
| Exchange Capital Management, Inc. | 18,853 | $5.33M | 1.03% | −675−3.5% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 18,676 | $5.29M | 0.06% | −187−1.0% | Reduced |
| Shelton Capital Management | 18,656 | $5.28M | 0.21% | +63+0.3% | Added |
| Hartford Investment Management Co | 18,543 | $5.25M | 0.14% | −1,946−9.5% | Reduced |
| First Horizon Advisors, Inc. | 18,352 | $5.19M | 0.17% | +866+5.0% | Added |
| Ilmarinen Mutual Pension Insurance Co | 18,000 | $5.09M | 0.05% | 00.0% | Unchanged |
| First Republic Investment Management, Inc. | 17,657 | $5.00M | 0.01% | +6,293+55.4% | Added |
| Banco Bilbao Vizcaya Argentaria, S.A. | 17,221 | $4.96M | 0.08% | +4,610+36.6% | Added |
| Cardinal Capital Management | 17,496 | $4.95M | 1.07% | −59−0.3% | Reduced |
| Symons Capital Management Inc | 17,481 | $4.95M | 3.17% | −1,229−6.6% | Reduced |
| Nissay Asset Management Corp | 17,424 | $4.93M | 0.04% | +367+2.2% | Added |
| Metropolitan Life Insurance Co | 17,344 | $4.91M | 0.07% | −779−4.3% | Reduced |
| Edgestream Partners, L.P. | 17,214 | $4.87M | 0.30% | +13,291+338.8% | Added |
| Dai-Ichi Life Insurance Company, Ltd | 17,086 | $4.83M | 0.06% | +685+4.2% | Added |
| Louisiana State Employees Retirement System | 17,000 | $4.81M | 0.12% | −200−1.2% | Reduced |
| PFM Health Sciences, LP | 16,900 | $4.78M | 0.16% | −115,372−87.2% | Reduced |