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 |
|---|---|---|---|---|---|
| SBI Securities Co., Ltd. | 1,947 | $244.5K | 0.01% | −28−1.4% | Reduced |
| Generali Investments, Management Co LLC | 1,962 | $246.1K | 0.06% | 00.0% | Unchanged |
| Wedbush Securities Inc | 1,971 | $248.0K | 0.01% | +436+28.4% | Added |
| National Asset Management, Inc. | 1,991 | $250.1K | 0.01% | −237−10.6% | Reduced |
| Estabrook Capital Management | 2,000 | $251.2K | 0.04% | −33−1.6% | Reduced |
| Heritage Wealth Advisors | 2,000 | $251.2K | 0.01% | 00.0% | Unchanged |
| Northwest & Ethical Investments L.P. | 2,000 | $251.2K | 0.01% | 00.0% | Unchanged |
| EverSource Wealth Advisors, LLC | 2,004 | $251.7K | 0.01% | +1,012+102.0% | Added |
| Personal Cfo Solutions, LLC | 2,017 | $253.3K | 0.05% | −10−0.5% | Reduced |
| J.W. Cole Advisors, Inc. | 2,017 | $253.3K | 0.01% | +2,017 | New |
| Huntington National Bank | 2,050 | $257.5K | 0.00% | −383−15.7% | Reduced |
| Proathlete Wealth Management LLC | 2,069 | $259.8K | 0.08% | +2+0.1% | Added |
| Great Valley Advisor Group, Inc. | 2,076 | $260.7K | 0.01% | −1,215−36.9% | Reduced |
| Evercore Wealth Management, LLC | 2,142 | $269.0K | 0.00% | 00.0% | Unchanged |
| Capital Investment Advisors, LLC | 2,164 | $271.7K | 0.00% | +111+5.4% | Added |
| Navellier & Associates Inc | 2,164 | $271.8K | 0.03% | 00.0% | Unchanged |
| Allworth Financial LP | 2,179 | $273.7K | 0.00% | +1,162+114.3% | Added |
| Trust Co of Toledo NA | 2,225 | $279.4K | 0.03% | −39−1.7% | Reduced |
| Kestra Advisory Services, LLC | 2,227 | $279.6K | 0.00% | +314+16.4% | Added |
| Harbor Capital Advisors, Inc. | 2,241 | $281.0K | 0.01% | −12−0.5% | Reduced |
| Richwood Investment Advisors, LLC | 2,248 | $282.3K | 0.23% | −535−19.2% | Reduced |
| Syon Capital LLC | 2,252 | $282.8K | 0.02% | −794−26.1% | Reduced |
| Philadelphia Trust Co | 2,250 | $283.0K | 0.02% | 00.0% | Unchanged |
| Oppenheimer & Co Inc | 2,264 | $284.3K | 0.00% | −2,026−47.2% | Reduced |
| Integrated Advisors Network LLC | 2,298 | $288.6K | 0.01% | +118+5.4% | Added |
| Fayez Sarofim & Co | 2,300 | $288.9K | 0.00% | 00.0% | Unchanged |
| Wedmont Private Capital | 2,190 | $291.3K | 0.01% | +81+3.8% | Added |
| Flagship Harbor Advisors, LLC | 2,338 | $293.6K | 0.01% | −102−4.2% | Reduced |
| J. Safra Sarasin Holding AG | 2,374 | $298.2K | 0.01% | −7,635−76.3% | Reduced |
| Sectoral Asset Management Inc | 2,375 | $298.3K | 0.20% | −480−16.8% | Reduced |
| Maven Securities LTD | 2,404 | $301.9K | 0.08% | +2,404 | New |
| Oracle Investment Management Inc | 2,412 | $302.9K | 0.26% | 00.0% | Unchanged |
| Allegheny Financial Group LTD | 2,419 | $303.9K | 0.07% | 00.0% | Unchanged |
| Callan Family Office, LLC | 2,454 | $308.2K | 0.01% | +2,454 | New |
| Chicago Partners Investment Group LLC | 2,358 | $308.9K | 0.01% | +2,358 | New |
| TFB Advisors LLC | 2,471 | $310.3K | 0.08% | +32+1.3% | Added |
| Magnetar Financial LLC | 2,484 | $312.0K | 0.00% | −5,235−67.8% | Reduced |
| Avantax Advisory Services, Inc. | 2,498 | $313.7K | 0.00% | +2,498 | New |
| NJ State Employees Deferred Compensation Plan | 2,500 | $314.0K | 0.04% | 00.0% | Unchanged |
| DKRT Investments Corp. | 2,500 | $314.0K | 0.08% | +2,500 | New |
| Prudential PLC | 2,508 | $315.0K | 0.00% | 00.0% | Unchanged |
| Tema ETFs LLC | 2,511 | $315.4K | 0.08% | +10+0.4% | Added |
| Legacy Wealth Asset Management, LLC | 2,511 | $315.4K | 0.08% | +91+3.8% | Added |
| Sherbrooke Park Advisers LLC | 2,512 | $315.5K | 0.14% | +2,512 | New |
| Exchange Traded Concepts, LLC | 2,518 | $316.2K | 0.00% | +113+4.7% | Added |
| Alps Advisors Inc | 2,531 | $317.9K | 0.00% | +31+1.2% | Added |
| Ocean Capital Management, LLC | 2,540 | $319.0K | 0.07% | 00.0% | Unchanged |
| DRW Securities, LLC | 2,578 | $320.7K | 0.02% | +2,578 | New |
| Westside Investment Management, Inc. | 2,580 | $328.5K | 0.06% | −80−3.0% | Reduced |
| Enterprise Bank & Trust Co | 2,618 | $328.8K | 0.12% | −45−1.7% | Reduced |
| Eagle Global Advisors LLC | 2,625 | $329.7K | 0.01% | 00.0% | Unchanged |
| Advanced Portfolio Management, LLC | 2,641 | $331.7K | 0.93% | 00.0% | Unchanged |
| Summitry LLC | 2,651 | $332.9K | 0.02% | +2,651 | New |
| GWM Advisors LLC | 2,673 | $335.7K | 0.00% | +316+13.4% | Added |
| Quarry LP | 2,681 | $336.7K | 0.08% | −1,074−28.6% | Reduced |
| Summit Trail Advisors, LLC | 2,687 | $337.5K | 0.01% | +2,687 | New |
| HB Wealth Management, LLC | 2,712 | $340.6K | 0.00% | +303+12.6% | Added |
| Ascent Group, LLC | 2,714 | $340.9K | 0.01% | +2,714 | New |
| Klingenstein Fields & Co LP | 2,731 | $343.0K | 0.01% | 00.0% | Unchanged |
| Uncommon Cents Investing LLC | 2,739 | $344.0K | 0.09% | −716−20.7% | Reduced |
| Marathon Trading Investment Management LLC | 2,750 | $345.4K | 0.21% | 00.0% | Unchanged |
| Fiduciary Trust Co | 2,754 | $345.9K | 0.00% | −181−6.2% | Reduced |
| Kennondale Capital Management LLC | 2,760 | $346.6K | 0.35% | 00.0% | Unchanged |
| Nicolet Bankshares Inc | 2,790 | $350.4K | 0.06% | +974+53.6% | Added |
| Aquatic Capital Management LLC | 2,792 | $350.6K | 0.01% | −32,440−92.1% | Reduced |
| Avestar Capital, LLC | 2,797 | $351.3K | 0.03% | +622+28.6% | Added |
| KCM Investment Advisors LLC | 2,819 | $354.0K | 0.01% | −20−0.7% | Reduced |
| Integrated Quantitative Investments LLC | 2,820 | $354.2K | 0.10% | +220+8.5% | Added |
| Pictet & Cie (Europe) SA | 2,826 | $354.9K | 0.01% | +1,212+75.1% | Added |
| Forum Financial Management, LP | 2,847 | $357.6K | 0.01% | −693−19.6% | Reduced |
| Massachusetts Wealth Management | 2,874 | $360.9K | 0.20% | +115+4.2% | Added |
| Wiley Bros.-Aintree Capital, LLC | 2,859 | $361.4K | 0.00% | +1,076+60.3% | Added |
| Tower Trust & Investment Co | 2,895 | $363.5K | 0.26% | +168+6.2% | Added |
| Tower Research Capital LLC (TRC) | 2,914 | $366.0K | 0.01% | −5,311−64.6% | Reduced |
| Hunter Associates Investment Management LLC | 2,936 | $370.0K | 0.05% | +30+1.0% | Added |
| David Loasby | 2,838 | $374.5K | 0.03% | +430+17.9% | Added |
| Arkadios Wealth Advisors | 3,003 | $377.1K | 0.01% | −351−10.5% | Reduced |
| Savant Capital, LLC | 3,009 | $377.9K | 0.00% | −250−7.7% | Reduced |
| Horizon Kinetics Asset Management LLC | 3,038 | $381.5K | 0.00% | −131−4.1% | Reduced |
| Humankind Investments LLC | 3,039 | $381.7K | 0.09% | −458−13.1% | Reduced |
| EntryPoint Capital, LLC | 3,061 | $384.4K | 0.19% | −118−3.7% | Reduced |
| Savvy Advisors, Inc. | 3,065 | $384.9K | 0.03% | +3,065 | New |
| Cornerstone Advisors, LLC | 3,100 | $389.3K | 0.01% | −500−13.9% | Reduced |
| NorthRock Partners, LLC | 3,116 | $391.3K | 0.01% | +3,116 | New |
| APG Asset Management US Inc. | 3,010 | $391.5K | 0.00% | 00.0% | Unchanged |
| Panagora Asset Management Inc | 3,132 | $393.3K | 0.00% | −187−5.6% | Reduced |
| Eqis Capital Management, Inc. | 3,144 | $394.9K | 0.03% | +281+9.8% | Added |
| Vise Technologies, Inc. | 3,170 | $398.1K | 0.02% | +3,170 | New |
| 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 |
| RDA Financial Network | 3,200 | $401.9K | 0.11% | 00.0% | Unchanged |
| Park Avenue Securities LLC | 3,203 | $402.0K | 0.00% | +137+4.5% | Added |
| Blackhawk Capital Partners LLC. | 3,212 | $403.4K | 0.19% | +423+15.2% | Added |
| Coldstream Capital Management Inc | 3,246 | $407.6K | 0.01% | −116−3.5% | Reduced |
| MUFG Securities Americas Inc. | 3,247 | $407.8K | 0.03% | +656+25.3% | Added |
| Vestcor Inc | 3,246 | $408.0K | 0.01% | +703+27.6% | Added |
| Sax Wealth Advisors, LLC | 3,288 | $413.0K | 0.02% | +1,078+48.8% | Added |
| Virtus Investment Advisers, Inc. | 3,359 | $421.9K | 0.14% | +1,048+45.3% | Added |
| 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 |