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 |
|---|---|---|---|---|---|
| Simplicity Wealth,LLC | 3,424 | $430.0K | 0.02% | +3,424 | New |
| Cambridge Investment Research Advisors, Inc. | 3,432 | $431.0K | 0.00% | −396−10.3% | Reduced |
| STRS Ohio | 3,492 | $438.6K | 0.00% | −30,508−89.7% | Reduced |
| Bessemer Group Inc | 3,544 | $444.0K | 0.00% | +507+16.7% | Added |
| Siemens Fonds Invest GmbH | 3,540 | $444.6K | 0.03% | +332+10.3% | Added |
| GAMMA Investing LLC | 3,587 | $450.5K | 0.03% | +1,725+92.6% | Added |
| South Dakota Investment Council | 3,613 | $454.0K | 0.01% | 00.0% | Unchanged |
| Westpac Banking Corp | 3,635 | $456.5K | 0.03% | 00.0% | Unchanged |
| Integrated Wealth Concepts LLC | 3,689 | $463.3K | 0.00% | +1,609+77.4% | Added |
| Applied Finance Capital Management, LLC | 3,703 | $465.1K | 0.03% | +3,703 | New |
| Polymer Capital Management (US) LLC | 3,760 | $472.2K | 0.08% | −120−3.1% | Reduced |
| MQS Management LLC | 3,817 | $479.4K | 0.26% | +2,030+113.6% | Added |
| Ironwood Financial, llc | 3,535 | $483.7K | 0.10% | 00.0% | Unchanged |
| Crossmark Global Holdings, Inc. | 3,940 | $494.8K | 0.01% | +338+9.4% | Added |
| Farmers & Merchants Investments Inc | 3,947 | $495.7K | 0.01% | −20−0.5% | Reduced |
| Walleye Capital LLC | 3,955 | $496.7K | 0.00% | −65,950−94.3% | Reduced |
| Kentucky Retirement Systems Insurance Trust Fund | 3,961 | $497.5K | 0.03% | −275−6.5% | Reduced |
| Wahed Invest LLC | 3,972 | $498.8K | 0.08% | +198+5.2% | Added |
| QRG Capital Management, Inc. | 3,982 | $500.1K | 0.00% | −57−1.4% | Reduced |
| Texas Yale Capital Corp. | 3,987 | $500.7K | 0.02% | 00.0% | Unchanged |
| Cohen Klingenstein LLC | 4,000 | $502.4K | 0.02% | 00.0% | Unchanged |
| Prime Capital Investment Advisors, LLC | 4,055 | $509.3K | 0.01% | +1,419+53.8% | Added |
| Congress Wealth Management LLC | 4,106 | $515.7K | 0.00% | +1,073+35.4% | Added |
| ARGA Investment Management, LP | 4,133 | $519.1K | 0.01% | 00.0% | Unchanged |
| Wetherby Asset Management Inc | 4,184 | $525.5K | 0.02% | +4,184 | New |
| Meeder Advisory Services, Inc. | 4,209 | $528.6K | 0.03% | +2,599+161.4% | Added |
| Private Advisor Group, LLC | 4,238 | $532.3K | 0.00% | −318−7.0% | Reduced |
| 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 |
| Skopos Labs, Inc. | 4,254 | $534.3K | 0.07% | +3,325+357.9% | Added |
| 111 Capital | 4,267 | $535.9K | 0.09% | −1,353−24.1% | Reduced |
| Roberts Glore & Co Inc | 4,344 | $545.6K | 0.16% | +181+4.3% | Added |
| Parallel Advisors, LLC | 4,354 | $546.9K | 0.01% | +2,744+170.4% | Added |
| Howard Capital Management Inc. | 4,442 | $557.9K | 0.01% | +450+11.3% | Added |
| Tiaa Trust, National Association | 4,443 | $558.0K | 0.00% | +100+2.3% | Added |
| First County Bank | 4,477 | $562.3K | 0.30% | −295−6.2% | Reduced |
| Kennedy Capital Management, Inc. | 4,503 | $565.5K | 0.01% | +52+1.2% | Added |
| Pinnacle Associates Ltd | 4,519 | $567.5K | 0.01% | +102+2.3% | Added |
| ISAM Funds (UK) Ltd | 4,525 | $568.3K | 0.12% | +4,525 | New |
| Sequoia Financial Advisors, LLC | 4,527 | $568.5K | 0.00% | +1,510+50.0% | Added |
| Intech Investment Management LLC | 4,531 | $569.0K | 0.01% | −2,973−39.6% | Reduced |
| Signaturefd, LLC | 4,571 | $574.1K | 0.01% | +1,874+69.5% | Added |
| EP Wealth Advisors, LLC | 4,614 | $579.5K | 0.00% | +230+5.2% | Added |
| Systematic Financial Management LP | 4,670 | $586.5K | 0.02% | 00.0% | Unchanged |
| Baird Financial Group, Inc. | 4,673 | $586.9K | 0.00% | −5,010−51.7% | Reduced |
| Northwestern Mutual Investment Management Company, LLC | 4,674 | $587.0K | 0.01% | +18+0.4% | Added |
| V-Square Quantitative Management LLC | 4,679 | $587.6K | 0.08% | +470+11.2% | Added |
| Lifeworks Advisors, LLC | 4,697 | $589.9K | 0.09% | +244+5.5% | Added |
| Annis Gardner Whiting Capital Advisors, LLC | 4,809 | $604.0K | 0.21% | +396+9.0% | Added |
| Crowley Wealth Management, Inc. | 4,910 | $616.6K | 0.56% | −385−7.3% | Reduced |
| Plato Investment Management Ltd | 4,939 | $618.0K | 0.05% | +3,869+361.6% | Added |
| Ci Investments Inc. | 4,971 | $624.0K | 0.00% | −1,641−24.8% | Reduced |
| United Capital Financial Advisers, LLC | 5,022 | $630.8K | 0.01% | +1,644+48.7% | Added |
| Spears Abacus Advisors LLC | 5,060 | $635.5K | 0.01% | +4+0.1% | Added |
| Vident Advisory, LLC | 5,064 | $636.0K | 0.01% | −1,766−25.9% | Reduced |
| ADAR1 Capital Management, LLC | 5,100 | $640.5K | 0.10% | +600+13.3% | Added |
| Brighton Jones LLC | 5,102 | $640.7K | 0.02% | +5,102 | New |
| Brown Brothers Harriman & Co | 5,123 | $643.4K | 0.00% | +659+14.8% | Added |
| Lido Advisors, LLC | 5,148 | $646.6K | 0.00% | −37,897−88.0% | Reduced |
| Omers Administration Corp | 5,180 | $650.6K | 0.01% | 00.0% | Unchanged |
| Empirical Finance, LLC | 5,233 | $657.2K | 0.03% | +31+0.6% | Added |
| Guardian Investment Management | 5,300 | $665.6K | 0.69% | −2,000−27.4% | Reduced |
| Unison Advisors LLC | 5,327 | $669.0K | 0.07% | 00.0% | Unchanged |
| Essential Partners LLC | 5,345 | $671.3K | 0.27% | +5,345 | New |
| Frank, Rimerman Advisors LLC | 5,368 | $674.2K | 0.05% | +5,368 | New |
| Ballentine Partners, LLC | 5,475 | $687.6K | 0.01% | +1,651+43.2% | Added |
| Tokio Marine Asset Management Co Ltd | 5,569 | $699.4K | 0.03% | +396+7.7% | Added |
| Hills Bank & Trust Co | 5,586 | $701.5K | 0.04% | +829+17.4% | Added |
| Tocqueville Asset Management L.P. | 5,587 | $701.7K | 0.01% | −1,093−16.4% | Reduced |
| North Star Investment Management Corp. | 5,622 | $706.1K | 0.05% | 00.0% | Unchanged |
| Greenleaf Trust | 5,669 | $712.0K | 0.01% | +2,714+91.8% | Added |
| Everence Capital Management Inc | 5,690 | $715.0K | 0.05% | +1,330+30.5% | Added |
| Advisors Asset Management, Inc. | 5,713 | $717.5K | 0.01% | −671−10.5% | Reduced |
| Gifford Fong Associates | 5,750 | $722.0K | 0.17% | 00.0% | Unchanged |
| Ontario Teachers Pension Plan Board | 5,786 | $726.7K | 0.02% | −5,063−46.7% | Reduced |
| Northwestern Mutual Wealth Management Co | 5,803 | $728.8K | 0.00% | +271+4.9% | Added |
| Capstone Investment Advisors, LLC | 5,986 | $751.8K | 0.01% | −1,081−15.3% | Reduced |
| Tudor Investment Corp Et Al | 6,000 | $753.5K | 0.01% | −99,851−94.3% | Reduced |
| Dai-Ichi Life Insurance Company, Ltd | 6,019 | $755.9K | 0.02% | −4,700−43.8% | Reduced |
| Money Concepts Capital Corp | 6,029 | $757.2K | 0.05% | +54+0.9% | Added |
| Ritholtz Wealth Management | 6,076 | $763.1K | 0.02% | +6,076 | New |
| Investment Management Corp of Ontario | 6,078 | $763.3K | 0.01% | −500−7.6% | Reduced |
| Ameritas Investment Partners, Inc. | 6,187 | $777.0K | 0.02% | 00.0% | Unchanged |
| Loring Wolcott & Coolidge Fiduciary Advisors LLP | 6,193 | $777.8K | 0.01% | 00.0% | Unchanged |
| Commerce Bank | 6,236 | $783.2K | 0.00% | −727−10.4% | Reduced |
| Mogy Joel R Investment Counsel Inc | 6,260 | $786.2K | 0.05% | 00.0% | Unchanged |
| Buckingham Strategic Partners | 6,311 | $792.7K | 0.01% | +1,010+19.1% | Added |
| Y-Intercept (Hong Kong) Ltd | 6,318 | $793.5K | 0.02% | +4,480+243.7% | Added |
| Cim Investment Mangement Inc | 5,764 | $802.9K | 0.15% | +2,877+99.7% | Added |
| E. Ohman J:or Asset Management AB | 6,399 | $803.6K | 0.02% | 00.0% | Unchanged |
| Pensionmark Financial Group, LLC | 6,478 | $813.6K | 0.02% | +184+2.9% | Added |
| Simplex Trading, LLC | 6,599 | $828.0K | 0.02% | +3,440+108.9% | Added |
| BI Asset Management Fondsmaeglerselskab A/S | 6,626 | $832.0K | 0.01% | +1,341+25.4% | Added |
| Metis Global Partners, LLC | 6,647 | $834.8K | 0.02% | −4,005−37.6% | Reduced |
| Wolverine Trading, LLC | 6,667 | $840.6K | 0.02% | −19,617−74.6% | Reduced |
| Colony Group, LLC | 6,708 | $842.5K | 0.00% | −3,465−34.1% | Reduced |
| Campbell & CO Investment Adviser LLC | 6,760 | $849.0K | 0.05% | −4,813−41.6% | Reduced |
| Maryland State Retirement & Pension System | 6,809 | $855.1K | 0.02% | 00.0% | Unchanged |
| New Mexico Educational Retirement Board | 6,824 | $857.0K | 0.03% | 00.0% | Unchanged |
| AIA Group Ltd | 6,852 | $860.5K | 0.02% | +2,006+41.4% | Added |