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 |
|---|---|---|---|---|---|
| Elo Mutual Pension Insurance Co | 17,934 | $2.25M | 0.05% | +426+2.4% | Added |
| Hourglass Capital, LLC | 17,970 | $2.26M | 0.56% | +17,970 | New |
| Inspire Trust Co, N.A. | 18,000 | $2.26M | 0.47% | +3,700+25.9% | Added |
| Triglav Skladi, D.O.O. | 18,027 | $2.26M | 0.16% | 00.0% | Unchanged |
| Sumitomo Mitsui DS Asset Management Company, Ltd | 18,103 | $2.27M | 0.02% | −55−0.3% | Reduced |
| Leo Wealth, LLC | 18,123 | $2.28M | 0.18% | +288+1.6% | Added |
| Thrivent Financial for Lutherans | 18,195 | $2.29M | 0.00% | +3,544+24.2% | Added |
| Janus Henderson Group PLC | 18,260 | $2.29M | 0.00% | −2,568−12.3% | Reduced |
| Kovitz Investment Group Partners, LLC | 18,321 | $2.30M | 0.01% | +4,105+28.9% | Added |
| Louisiana State Employees Retirement System | 18,400 | $2.31M | 0.04% | −200−1.1% | Reduced |
| UniSuper Management Pty Ltd | 18,413 | $2.31M | 0.02% | +742+4.2% | Added |
| Banque Cantonale Vaudoise | 18,480 | $2.32M | 0.09% | +8,648+88.0% | Added |
| State of Alaska, Department of Revenue | 19,059 | $2.39M | 0.03% | −660−3.3% | Reduced |
| Janney Montgomery Scott LLC | 19,099 | $2.40M | 0.01% | +1,158+6.5% | Added |
| Kinneret Advisory, LLC | 19,340 | $2.43M | 0.22% | −29−0.1% | Reduced |
| Yousif Capital Management, LLC | 19,751 | $2.48M | 0.03% | −2,956−13.0% | Reduced |
| Old North State Wealth Management, LLC | 20,224 | $2.54M | 1.32% | +320+1.6% | Added |
| Arlington Partners LLC | 20,417 | $2.56M | 0.95% | −7,308−26.4% | Reduced |
| Comerica Bank | 21,109 | $2.65M | 0.01% | −964−4.4% | Reduced |
| Privium Fund Management B.V. | 20,500 | $2.67M | 0.58% | +20,500 | New |
| ICICI Prudential Asset Management Co Ltd | 21,288 | $2.67M | 0.33% | −6,941−24.6% | Reduced |
| Xponance, Inc. | 21,379 | $2.68M | 0.02% | +281+1.3% | Added |
| Bokf, NA | 21,411 | $2.69M | 0.04% | −1,251−5.5% | Reduced |
| Ikarian Capital, LLC | 21,516 | $2.70M | 0.89% | +21,516 | New |
| Toroso Investments, LLC | 21,984 | $2.76M | 0.02% | +2,120+10.7% | Added |
| SEI Investments Co | 22,028 | $2.77M | 0.00% | +3,713+20.3% | Added |
| New York Life Investment Management LLC | 22,336 | $2.81M | 0.03% | +67+0.3% | Added |
| Police & Firemen's Retirement System of New Jersey | 22,358 | $2.81M | 0.03% | +1,248+5.9% | Added |
| Andra AP-fonden | 22,400 | $2.81M | 0.04% | −23,800−51.5% | Reduced |
| SG Americas Securities, LLC | 22,470 | $2.82M | 0.01% | −697,323−96.9% | Reduced |
| Headlands Technologies LLC | 22,791 | $2.86M | 0.34% | −1,978−8.0% | Reduced |
| British Columbia Investment Management Corp | 23,034 | $2.89M | 0.02% | −4,839−17.4% | Reduced |
| Mirae Asset Securities (USA) Inc. | 23,059 | $2.90M | 0.13% | +1,605+7.5% | Added |
| Verition Fund Management LLC | 23,313 | $2.93M | 0.02% | −215,639−90.2% | Reduced |
| Utah Retirement Systems | 23,996 | $3.01M | 0.03% | −119−0.5% | Reduced |
| Ilmarinen Mutual Pension Insurance Co | 24,000 | $3.01M | 0.02% | 00.0% | Unchanged |
| Forsta Ap-Fonden | 24,200 | $3.04M | 0.02% | +1,200+5.2% | Added |
| Jain Global LLC | 26,046 | $3.27M | 0.05% | +2,670+11.4% | Added |
| Glenmede Investment Management, LP | 26,340 | $3.31M | 0.02% | +26,340 | New |
| Mn Services Vermogensbeheer B.V. | 26,600 | $3.34M | 0.02% | +26,600 | New |
| CWA Asset Management Group, LLC | 26,611 | $3.34M | 0.14% | +4,143+18.4% | Added |
| Profund Advisors LLC | 27,174 | $3.41M | 0.12% | +404+1.5% | Added |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 27,421 | $3.44M | 0.03% | +3,200+13.2% | Added |
| DnB Asset Management AS | 27,427 | $3.44M | 0.01% | +602+2.2% | Added |
| CSM Advisors, LLC | 27,459 | $3.45M | 0.10% | −400−1.4% | Reduced |
| Amalgamated Bank | 28,300 | $3.55M | 0.03% | −154−0.5% | Reduced |
| O'Shaughnessy Asset Management, LLC | 28,312 | $3.56M | 0.02% | +25,836+1,043.5% | Added |
| Commonwealth Equity Services, LLC | 28,551 | $3.59M | 0.00% | +1,071+3.9% | Added |
| CIBC World Markets Corp | 28,878 | $3.63M | 0.02% | +11,252+63.8% | Added |
| Wealth Enhancement Advisory Services, LLC | 27,867 | $3.70M | 0.01% | +8,818+46.3% | Added |
| Farmers Trust Co | 29,527 | $3.71M | 0.69% | +14,666+98.7% | Added |
| Retirement Systems of Alabama | 31,442 | $3.95M | 0.01% | −152,109−82.9% | Reduced |
| PDT Partners, LLC | 31,664 | $3.98M | 0.22% | +31,664 | New |
| USS Investment Management Ltd | 31,870 | $4.00M | 0.03% | +372+1.2% | Added |
| China Universal Asset Management Co., Ltd. | 32,757 | $4.11M | 0.39% | −303−0.9% | Reduced |
| Orion Investment Co | 32,901 | $4.13M | 1.47% | +1,249+3.9% | Added |
| Engineers Gate Manager LP | 33,008 | $4.15M | 0.05% | −43,950−57.1% | Reduced |
| Jane Street Group, LLC | 33,041 | $4.15M | 0.01% | −4,213−11.3% | Reduced |
| Meitav Dash Investments Ltd | 33,400 | $4.19M | 0.06% | 00.0% | Unchanged |
| Impax Asset Management Group plc | 33,526 | $4.21M | 0.02% | −2,320−6.5% | Reduced |
| North Growth Management Ltd. | 34,000 | $4.27M | 0.80% | 00.0% | Unchanged |
| CI Private Wealth, LLC | 34,331 | $4.31M | 0.01% | +4,540+15.2% | Added |
| NorthCrest Asset Manangement, LLC | 32,669 | $4.34M | 0.12% | −1,863−5.4% | Reduced |
| CWM, LLC | 34,782 | $4.37M | 0.02% | +6,639+23.6% | Added |
| Natixis | 34,781 | $4.37M | 0.02% | +4,876+16.3% | Added |
| JustInvest LLC | 34,928 | $4.39M | 0.05% | +13,226+60.9% | Added |
| Tang Capital Management LLC | 35,000 | $4.40M | 0.22% | 00.0% | Unchanged |
| KBC Group NV | 35,204 | $4.42M | 0.01% | +864+2.5% | Added |
| IFM Investors Pty Ltd | 35,752 | $4.49M | 0.04% | +2,023+6.0% | Added |
| Ensign Peak Advisors, Inc | 35,761 | $4.49M | 0.01% | −2,351−6.2% | Reduced |
| Czech National Bank | 35,816 | $4.50M | 0.04% | +2,196+6.5% | Added |
| Mariner, LLC | 35,915 | $4.51M | 0.01% | +11,910+49.6% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 35,937 | $4.51M | 0.02% | +2,463+7.4% | Added |
| GF Fund Management Co. Ltd. | 36,453 | $4.58M | 0.09% | +1,018+2.9% | Added |
| State of Tennessee, Treasury Department | 36,544 | $4.59M | 0.02% | −7,953−17.9% | Reduced |
| NEOS Investment Management LLC | 36,811 | $4.62M | 0.06% | +14,113+62.2% | Added |
| Calamos Advisors LLC | 36,970 | $4.64M | 0.02% | 00.0% | Unchanged |
| Jefferies Financial Group Inc. | 37,117 | $4.66M | 0.08% | −12,877−25.8% | Reduced |
| Squarepoint Ops LLC | 37,161 | $4.67M | 0.01% | −378,349−91.1% | Reduced |
| MetLife Investment Management | 37,325 | $4.69M | 0.03% | −677−1.8% | Reduced |
| Mercer Global Advisors Inc | 37,615 | $4.73M | 0.01% | +28,690+321.5% | Added |
| The PNC Financial Services Group, Inc. | 38,089 | $4.78M | 0.00% | +12,894+51.2% | Added |
| Natixis Advisors, L.P. | 38,199 | $4.80M | 0.01% | +11,292+42.0% | Added |
| HRT Financial LP | 38,276 | $4.81M | 0.02% | −140,066−78.5% | Reduced |
| Generali Investments CEE, investicni spolecnost, a.s. | 38,755 | $4.87M | 0.40% | +11,695+43.2% | Added |
| Daiwa Securities Group Inc. | 39,128 | $4.91M | 0.02% | −4,265−9.8% | Reduced |
| Gateway Investment Advisers LLC | 40,475 | $5.08M | 0.06% | −784−1.9% | Reduced |
| Teacher Retirement System of Texas | 40,975 | $5.15M | 0.02% | +1,103+2.8% | Added |
| Grimes & Company, Inc. | 41,024 | $5.15M | 0.14% | −18,310−30.9% | Reduced |
| Generali Asset Management SPA SGR | 41,682 | $5.23M | 0.12% | +2,518+6.4% | Added |
| Hillman Capital Management, Inc. | 41,972 | $5.27M | 2.88% | −2,053−4.7% | Reduced |
| Arizona State Retirement System | 42,753 | $5.37M | 0.03% | +639+1.5% | Added |
| Los Angeles Capital Management LLC | 44,358 | $5.57M | 0.02% | +1,048+2.4% | Added |
| Nissay Asset Management Corp | 44,818 | $5.63M | 0.03% | −2,386−5.1% | Reduced |
| CIBC Asset Management Inc | 45,090 | $5.66M | 0.02% | −2,171−4.6% | Reduced |
| Public Employees Retirement System of Ohio | 45,355 | $5.70M | 0.02% | +492+1.1% | Added |
| Oversea-Chinese Banking CORP Ltd | 45,980 | $5.77M | 0.16% | −7,300−13.7% | Reduced |
| Cerity Partners LLC | 46,552 | $5.85M | 0.01% | +6,184+15.3% | Added |
| Erste Asset Management GmbH | 46,623 | $5.88M | 0.05% | −4,333−8.5% | Reduced |
| Lansforsakringar Fondforvaltning AB (publ) | 47,747 | $6.00M | 0.03% | −385−0.8% | Reduced |