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 |
|---|---|---|---|---|---|
| Tokio Marine Asset Management Co Ltd | 5,569 | $699.4K | 0.03% | +396+7.7% | Added |
| Ballentine Partners, LLC | 5,475 | $687.6K | 0.01% | +1,651+43.2% | Added |
| Frank, Rimerman Advisors LLC | 5,368 | $674.2K | 0.05% | +5,368 | New |
| Essential Partners LLC | 5,345 | $671.3K | 0.27% | +5,345 | New |
| Unison Advisors LLC | 5,327 | $669.0K | 0.07% | 00.0% | Unchanged |
| Guardian Investment Management | 5,300 | $665.6K | 0.69% | −2,000−27.4% | Reduced |
| Empirical Finance, LLC | 5,233 | $657.2K | 0.03% | +31+0.6% | Added |
| Omers Administration Corp | 5,180 | $650.6K | 0.01% | 00.0% | Unchanged |
| Lido Advisors, LLC | 5,148 | $646.6K | 0.00% | −37,897−88.0% | Reduced |
| Brown Brothers Harriman & Co | 5,123 | $643.4K | 0.00% | +659+14.8% | Added |
| Brighton Jones LLC | 5,102 | $640.7K | 0.02% | +5,102 | New |
| ADAR1 Capital Management, LLC | 5,100 | $640.5K | 0.10% | +600+13.3% | Added |
| Vident Advisory, LLC | 5,064 | $636.0K | 0.01% | −1,766−25.9% | Reduced |
| Spears Abacus Advisors LLC | 5,060 | $635.5K | 0.01% | +4+0.1% | Added |
| United Capital Financial Advisers, LLC | 5,022 | $630.8K | 0.01% | +1,644+48.7% | Added |
| Ci Investments Inc. | 4,971 | $624.0K | 0.00% | −1,641−24.8% | Reduced |
| Plato Investment Management Ltd | 4,939 | $618.0K | 0.05% | +3,869+361.6% | Added |
| Crowley Wealth Management, Inc. | 4,910 | $616.6K | 0.56% | −385−7.3% | Reduced |
| Annis Gardner Whiting Capital Advisors, LLC | 4,809 | $604.0K | 0.21% | +396+9.0% | Added |
| Lifeworks Advisors, LLC | 4,697 | $589.9K | 0.09% | +244+5.5% | Added |
| V-Square Quantitative Management LLC | 4,679 | $587.6K | 0.08% | +470+11.2% | Added |
| Northwestern Mutual Investment Management Company, LLC | 4,674 | $587.0K | 0.01% | +18+0.4% | Added |
| Baird Financial Group, Inc. | 4,673 | $586.9K | 0.00% | −5,010−51.7% | Reduced |
| Systematic Financial Management LP | 4,670 | $586.5K | 0.02% | 00.0% | Unchanged |
| EP Wealth Advisors, LLC | 4,614 | $579.5K | 0.00% | +230+5.2% | Added |
| Signaturefd, LLC | 4,571 | $574.1K | 0.01% | +1,874+69.5% | Added |
| Intech Investment Management LLC | 4,531 | $569.0K | 0.01% | −2,973−39.6% | Reduced |
| Sequoia Financial Advisors, LLC | 4,527 | $568.5K | 0.00% | +1,510+50.0% | Added |
| ISAM Funds (UK) Ltd | 4,525 | $568.3K | 0.12% | +4,525 | New |
| Pinnacle Associates Ltd | 4,519 | $567.5K | 0.01% | +102+2.3% | Added |
| Kennedy Capital Management, Inc. | 4,503 | $565.5K | 0.01% | +52+1.2% | Added |
| First County Bank | 4,477 | $562.3K | 0.30% | −295−6.2% | Reduced |
| Tiaa Trust, National Association | 4,443 | $558.0K | 0.00% | +100+2.3% | Added |
| Howard Capital Management Inc. | 4,442 | $557.9K | 0.01% | +450+11.3% | Added |
| Parallel Advisors, LLC | 4,354 | $546.9K | 0.01% | +2,744+170.4% | Added |
| Roberts Glore & Co Inc | 4,344 | $545.6K | 0.16% | +181+4.3% | Added |
| 111 Capital | 4,267 | $535.9K | 0.09% | −1,353−24.1% | Reduced |
| Skopos Labs, Inc. | 4,254 | $534.3K | 0.07% | +3,325+357.9% | Added |
| Court Place Advisors, LLC | 4,240 | $532.5K | 0.17% | −130−3.0% | Reduced |
| denkapparat Operations GmbH | 4,240 | $532.5K | 0.43% | +1,000+30.9% | Added |
| Private Advisor Group, LLC | 4,238 | $532.3K | 0.00% | −318−7.0% | Reduced |
| Meeder Advisory Services, Inc. | 4,209 | $528.6K | 0.03% | +2,599+161.4% | Added |
| Wetherby Asset Management Inc | 4,184 | $525.5K | 0.02% | +4,184 | New |
| ARGA Investment Management, LP | 4,133 | $519.1K | 0.01% | 00.0% | Unchanged |
| Congress Wealth Management LLC | 4,106 | $515.7K | 0.00% | +1,073+35.4% | Added |
| Prime Capital Investment Advisors, LLC | 4,055 | $509.3K | 0.01% | +1,419+53.8% | Added |
| Cohen Klingenstein LLC | 4,000 | $502.4K | 0.02% | 00.0% | Unchanged |
| Texas Yale Capital Corp. | 3,987 | $500.7K | 0.02% | 00.0% | Unchanged |
| QRG Capital Management, Inc. | 3,982 | $500.1K | 0.00% | −57−1.4% | Reduced |
| Wahed Invest LLC | 3,972 | $498.8K | 0.08% | +198+5.2% | Added |
| Kentucky Retirement Systems Insurance Trust Fund | 3,961 | $497.5K | 0.03% | −275−6.5% | Reduced |
| Walleye Capital LLC | 3,955 | $496.7K | 0.00% | −65,950−94.3% | Reduced |
| Farmers & Merchants Investments Inc | 3,947 | $495.7K | 0.01% | −20−0.5% | Reduced |
| Crossmark Global Holdings, Inc. | 3,940 | $494.8K | 0.01% | +338+9.4% | Added |
| Ironwood Financial, llc | 3,535 | $483.7K | 0.10% | 00.0% | Unchanged |
| MQS Management LLC | 3,817 | $479.4K | 0.26% | +2,030+113.6% | Added |
| Polymer Capital Management (US) LLC | 3,760 | $472.2K | 0.08% | −120−3.1% | Reduced |
| Applied Finance Capital Management, LLC | 3,703 | $465.1K | 0.03% | +3,703 | New |
| Integrated Wealth Concepts LLC | 3,689 | $463.3K | 0.00% | +1,609+77.4% | Added |
| Westpac Banking Corp | 3,635 | $456.5K | 0.03% | 00.0% | Unchanged |
| South Dakota Investment Council | 3,613 | $454.0K | 0.01% | 00.0% | Unchanged |
| GAMMA Investing LLC | 3,587 | $450.5K | 0.03% | +1,725+92.6% | Added |
| Siemens Fonds Invest GmbH | 3,540 | $444.6K | 0.03% | +332+10.3% | Added |
| Bessemer Group Inc | 3,544 | $444.0K | 0.00% | +507+16.7% | Added |
| STRS Ohio | 3,492 | $438.6K | 0.00% | −30,508−89.7% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 3,432 | $431.0K | 0.00% | −396−10.3% | Reduced |
| Simplicity Wealth,LLC | 3,424 | $430.0K | 0.02% | +3,424 | New |
| Sig Brokerage, LP | 3,379 | $424.4K | 0.12% | −846−20.0% | Reduced |
| State of Wyoming | 3,379 | $424.4K | 0.05% | +818+31.9% | Added |
| Virtus Investment Advisers, Inc. | 3,359 | $421.9K | 0.14% | +1,048+45.3% | Added |
| Sax Wealth Advisors, LLC | 3,288 | $413.0K | 0.02% | +1,078+48.8% | Added |
| Vestcor Inc | 3,246 | $408.0K | 0.01% | +703+27.6% | Added |
| MUFG Securities Americas Inc. | 3,247 | $407.8K | 0.03% | +656+25.3% | Added |
| Coldstream Capital Management Inc | 3,246 | $407.6K | 0.01% | −116−3.5% | Reduced |
| Blackhawk Capital Partners LLC. | 3,212 | $403.4K | 0.19% | +423+15.2% | Added |
| Park Avenue Securities LLC | 3,203 | $402.0K | 0.00% | +137+4.5% | Added |
| RDA Financial Network | 3,200 | $401.9K | 0.11% | 00.0% | Unchanged |
| Sanctuary Advisors, LLC | 3,181 | $399.5K | 0.00% | +942+42.1% | Added |
| Emerald Advisers, LLC | 3,181 | $399.5K | 0.01% | +3,181 | New |
| Vise Technologies, Inc. | 3,170 | $398.1K | 0.02% | +3,170 | New |
| Eqis Capital Management, Inc. | 3,144 | $394.9K | 0.03% | +281+9.8% | Added |
| Panagora Asset Management Inc | 3,132 | $393.3K | 0.00% | −187−5.6% | Reduced |
| APG Asset Management US Inc. | 3,010 | $391.5K | 0.00% | 00.0% | Unchanged |
| NorthRock Partners, LLC | 3,116 | $391.3K | 0.01% | +3,116 | New |
| Cornerstone Advisors, LLC | 3,100 | $389.3K | 0.01% | −500−13.9% | Reduced |
| Savvy Advisors, Inc. | 3,065 | $384.9K | 0.03% | +3,065 | New |
| EntryPoint Capital, LLC | 3,061 | $384.4K | 0.19% | −118−3.7% | Reduced |
| Humankind Investments LLC | 3,039 | $381.7K | 0.09% | −458−13.1% | Reduced |
| Horizon Kinetics Asset Management LLC | 3,038 | $381.5K | 0.00% | −131−4.1% | Reduced |
| Savant Capital, LLC | 3,009 | $377.9K | 0.00% | −250−7.7% | Reduced |
| Arkadios Wealth Advisors | 3,003 | $377.1K | 0.01% | −351−10.5% | Reduced |
| David Loasby | 2,838 | $374.5K | 0.03% | +430+17.9% | Added |
| Hunter Associates Investment Management LLC | 2,936 | $370.0K | 0.05% | +30+1.0% | Added |
| Tower Research Capital LLC (TRC) | 2,914 | $366.0K | 0.01% | −5,311−64.6% | Reduced |
| Tower Trust & Investment Co | 2,895 | $363.5K | 0.26% | +168+6.2% | Added |
| Wiley Bros.-Aintree Capital, LLC | 2,859 | $361.4K | 0.00% | +1,076+60.3% | Added |
| Massachusetts Wealth Management | 2,874 | $360.9K | 0.20% | +115+4.2% | Added |
| Forum Financial Management, LP | 2,847 | $357.6K | 0.01% | −693−19.6% | Reduced |
| Pictet & Cie (Europe) SA | 2,826 | $354.9K | 0.01% | +1,212+75.1% | Added |
| Integrated Quantitative Investments LLC | 2,820 | $354.2K | 0.10% | +220+8.5% | Added |