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; 1,046 institutions reported holding it in 13F filings for Q2 2026, worth $30.7B in total; no superinvestor holds it.
13F holders, Q2 2026
Institutional positions in Biogen Inc. as of Jun 30, 2026. 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
- 1,046
- +42 vs. Q1 2026
- Shares held
- 142.3M
- +7.45M (+5.5%) vs. Q1 2026
- Total value
- $30.7B
- +$6.00B (+24.3%) vs. Q1 2026
- New holders
- 126
- 427 more added
- Sold out
- 84
- 296 more reduced
11 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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 | 1,046 | $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 2026
Shares, value and share of portfolio for each institution holding Biogen Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| GAMMA Investing LLC | 6,462 | $1.40M | 0.05% | +469+7.8% | Added |
| Tokio Marine Asset Management Co Ltd | 6,428 | $1.39M | 0.04% | 00.0% | Unchanged |
| Ballentine Partners, LLC | 6,407 | $1.38M | 0.02% | +57+0.9% | Added |
| Nicolet Bankshares Inc | 6,476 | $1.37M | 0.04% | −40−0.6% | Reduced |
| denkapparat Operations GmbH | 6,338 | $1.37M | 0.45% | 00.0% | Unchanged |
| Econ Financial Services Corp | 6,300 | $1.36M | 0.64% | +1,903+43.3% | Added |
| Mogy Joel R Investment Counsel Inc | 6,260 | $1.35M | 0.08% | 00.0% | Unchanged |
| Sigma Planning Corp | 6,193 | $1.34M | 0.03% | −1,008−14.0% | Reduced |
| Loring Wolcott & Coolidge Fiduciary Advisors LLP | 6,193 | $1.34M | 0.01% | 00.0% | Unchanged |
| Metis Global Partners, LLC | 6,191 | $1.34M | 0.03% | +15+0.2% | Added |
| Callan Family Office, LLC | 6,183 | $1.34M | 0.03% | −316−4.9% | Reduced |
| HB Wealth Management, LLC | 6,176 | $1.33M | 0.01% | +495+8.7% | Added |
| Kestra Advisory Services, LLC | 6,154 | $1.33M | 0.00% | +344+5.9% | Added |
| Rockefeller Capital Management L.P. | 6,128 | $1.32M | 0.00% | −633−9.4% | Reduced |
| Vinva Investment Management Ltd | 6,056 | $1.31M | 0.01% | +4,696+345.3% | Added |
| Bull Harbor Capital LLC | 6,026 | $1.30M | 0.25% | +949+18.7% | Added |
| Mediolanum International Funds Ltd | 6,010 | $1.30M | 0.01% | −44−0.7% | Reduced |
| Emerald Advisers, LLC | 5,990 | $1.29M | 0.03% | −37−0.6% | Reduced |
| Beese Fulmer Investment Management, Inc. | 5,959 | $1.29M | 0.07% | +1,156+24.1% | Added |
| Sanctuary Advisors, LLC | 5,838 | $1.26M | 0.01% | +221+3.9% | Added |
| Virtus Investment Advisers, Inc. | 5,813 | $1.26M | 0.29% | +965+19.9% | Added |
| Assenagon Asset Management S.A. | 5,766 | $1.25M | 0.00% | −1,203−17.3% | Reduced |
| MUFG Securities EMEA plc | 5,747 | $1.24M | 0.01% | −270−4.5% | Reduced |
| Thrivent Financial for Lutherans | 5,713 | $1.23M | 0.00% | −4,002−41.2% | Reduced |
| North Star Investment Management Corp. | 5,621 | $1.21M | 0.07% | 00.0% | Unchanged |
| Agp Franklin, LLC | 5,566 | $1.20M | 0.52% | +3,493+168.5% | Added |
| AIA Group Ltd | 5,545 | $1.20M | 0.02% | −3,784−40.6% | Reduced |
| Twin Tree Management, LP | 5,507 | $1.19M | 0.19% | +4,748+625.6% | Added |
| Guardian Investment Management | 5,500 | $1.19M | 0.81% | 00.0% | Unchanged |
| Dai-Ichi Life Insurance Company, Ltd | 5,397 | $1.17M | 0.03% | −411−7.1% | Reduced |
| Independent Financial Group, LLC | 5,364 | $1.16M | 0.02% | +166+3.2% | Added |
| Lido Advisors, LLC | 5,292 | $1.14M | 0.00% | +860+19.4% | Added |
| Empirical Finance, LLC | 5,240 | $1.13M | 0.05% | +170+3.4% | Added |
| Elevated Private Wealth, LLC | 5,234 | $1.13M | 1.08% | +5,234 | New |
| Annis Gardner Whiting Capital Advisors, LLC | 5,233 | $1.13M | 0.17% | +41+0.8% | Added |
| Frank, Rimerman Advisors LLC | 5,197 | $1.12M | 0.06% | +3+0.1% | Added |
| Pensionmark Financial Group, LLC | 6,038 | $1.11M | 0.02% | −44−0.7% | Reduced |
| Williamson Legacy Group, LLC | 5,129 | $1.11M | 0.55% | +5,129 | New |
| Wiley Bros.-Aintree Capital, LLC | 5,128 | $1.11M | 0.00% | +91+1.8% | Added |
| Coldstream Capital Management Inc | 5,115 | $1.11M | 0.01% | +453+9.7% | Added |
| Lombard Odier Asset Management (Switzerland) SA | 5,099 | $1.10M | 0.04% | +1,200+30.8% | Added |
| Signaturefd, LLC | 5,094 | $1.10M | 0.01% | +486+10.5% | Added |
| Spears Abacus Advisors LLC | 5,083 | $1.10M | 0.02% | 00.0% | Unchanged |
| Unison Advisors LLC | 5,078 | $1.10M | 0.08% | 00.0% | Unchanged |
| Prudential PLC | 4,924 | $1.06M | 0.01% | +2,416+96.3% | Added |
| LMR Partners LLP | 4,866 | $1.05M | 0.01% | −111,265−95.8% | Reduced |
| E. Ohman J:or Asset Management AB | 4,819 | $1.04M | 0.02% | 00.0% | Unchanged |
| CSM Advisors, LLC | 4,815 | $1.04M | 0.02% | −493−9.3% | Reduced |
| Sterling Capital Management LLC | 4,810 | $1.04M | 0.02% | −326−6.3% | Reduced |
| Abacus Wealth Partners, LLC | 4,808 | $1.04M | 0.11% | −4,345−47.5% | Reduced |
| Arkadios Wealth Advisors | 4,806 | $1.04M | 0.02% | +25+0.5% | Added |
| Holocene Advisors, LP | 4,793 | $1.04M | 0.00% | 00.0% | Unchanged |
| Northwestern Mutual Investment Management Company, LLC | 4,734 | $1.02M | 0.01% | +38+0.8% | Added |
| Wealthcare Advisory Partners LLC | 4,728 | $1.02M | 0.02% | −661−12.3% | Reduced |
| Vident Advisory, LLC | 4,698 | $1.02M | 0.01% | −403−7.9% | Reduced |
| Chicago Partners Investment Group LLC | 5,038 | $1.01M | 0.02% | +440+9.6% | Added |
| J. Safra Sarasin Holding AG | 4,895 | $1.00M | 0.01% | −103−2.1% | Reduced |
| Meeder Advisory Services, Inc. | 4,608 | $995.6K | 0.04% | −113−2.4% | Reduced |
| EFG International AG | 4,582 | $990.0K | 0.02% | +125+2.8% | Added |
| Beacon Pointe Advisors, LLC | 4,544 | $981.1K | 0.00% | +461+11.3% | Added |
| Gilder Gagnon Howe & Co LLC | 4,528 | $978.3K | 0.01% | −30−0.7% | Reduced |
| Tocqueville Asset Management L.P. | 4,486 | $969.2K | 0.01% | +134+3.1% | Added |
| Twin Capital Management Inc | 4,465 | $964.7K | 0.11% | +35+0.8% | Added |
| MUFG Securities Americas Inc. | 4,447 | $960.8K | 0.05% | +386+9.5% | Added |
| BNP Paribas | 4,360 | $940.7K | 0.03% | +3,660+522.9% | Added |
| V-Square Quantitative Management LLC | 4,349 | $939.6K | 0.09% | −9−0.2% | Reduced |
| North Dakota State Investment Board | 4,343 | $938.3K | 0.04% | −2,327−34.9% | Reduced |
| Blackhawk Capital Partners LLC. | 4,266 | $921.7K | 0.30% | +1,840+75.8% | Added |
| Providence First Trust Co | 4,175 | $902.0K | 0.25% | +1,096+35.6% | Added |
| E Fund Management Co., Ltd. | 4,174 | $901.8K | 0.02% | −1,035−19.9% | Reduced |
| Frec Markets, Inc. | 4,158 | $898.4K | 0.08% | +1,530+58.2% | Added |
| Parallel Advisors, LLC | 4,145 | $895.6K | 0.01% | −222−5.1% | Reduced |
| Summitry LLC | 4,137 | $893.8K | 0.03% | −600−12.7% | Reduced |
| Pinnacle Associates Ltd | 4,102 | $886.2K | 0.01% | +103+2.6% | Added |
| Intech Investment Management LLC | 4,092 | $884.1K | 0.01% | 00.0% | Unchanged |
| Cohen Klingenstein LLC | 4,000 | $864.2K | 0.02% | 00.0% | Unchanged |
| Knott David M Jr | 4,000 | $864.2K | 0.46% | 00.0% | Unchanged |
| Savvy Advisors, Inc. | 3,996 | $863.4K | 0.02% | +132+3.4% | Added |
| Texas Yale Capital Corp. | 3,987 | $861.4K | 0.02% | 00.0% | Unchanged |
| Connor, Clark & Lunn Investment Management Ltd. | 3,948 | $853.0K | 0.00% | +3,948 | New |
| First County Bank | 3,933 | $849.8K | 0.40% | −233−5.6% | Reduced |
| AlphaCentric Advisors LLC | 3,891 | $840.7K | 0.71% | +56+1.5% | Added |
| Savant Capital, LLC | 3,896 | $839.5K | 0.00% | −2,583−39.9% | Reduced |
| Chesapeake Capital Corp | 3,879 | $838.1K | 0.45% | +335+9.5% | Added |
| Sivia Capital Partners, LLC | 3,879 | $838.1K | 0.10% | +876+29.2% | Added |
| Farmers & Merchants Investments Inc | 3,830 | $827.5K | 0.02% | −111−2.8% | Reduced |
| Kentucky Retirement Systems Insurance Trust Fund | 3,827 | $826.9K | 0.05% | −17−0.4% | Reduced |
| Securian Asset Management, Inc | 3,945 | $812.6K | 0.03% | 00.0% | Unchanged |
| Bessemer Group Inc | 3,701 | $799.0K | 0.00% | +574+18.4% | Added |
| Wahed Invest LLC | 3,696 | $798.6K | 0.08% | +21+0.6% | Added |
| Warren Averett Asset Management, LLC | 3,678 | $794.7K | 0.00% | +527+16.7% | Added |
| Jones Kertz & Associates, Inc. | 3,666 | $792.1K | 0.37% | −565−13.4% | Reduced |
| Farther Finance Advisors, LLC | 3,649 | $788.5K | 0.01% | +52+1.4% | Added |
| Siemens Fonds Invest GmbH | 3,633 | $784.9K | 0.04% | 00.0% | Unchanged |
| Osmosis Investment Management UK Ltd | 3,629 | $784.1K | 0.04% | −3,023−45.4% | Reduced |
| Xxi Wealth, LLC | 3,603 | $778.5K | 0.36% | −48−1.3% | Reduced |
| Empirical Financial Services, LLC d.b.a. Empirical Wealth Management | 3,601 | $778.0K | 0.01% | +850+30.9% | Added |
| Ellevest, Inc. | 3,573 | $772.1K | 0.09% | −373−9.5% | Reduced |
| Atria Investments LLC | 3,573 | $772.0K | 0.01% | +1,136+46.6% | Added |
| USA Financial Formulas | 3,548 | $766.6K | 0.14% | +3,548 | New |