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 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
- 1,047
- +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
- 297 more reduced
10 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 | 1,047 | $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 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 |
|---|---|---|---|---|---|
| Thurston, Springer, Miller, Herd & Titak, Inc. | 10 | $2.16K | 0.00% | 00.0% | Unchanged |
| Penserra Capital Management LLC | 12 | $2.00K | 0.00% | 00.0% | Unchanged |
| Valley National Advisers Inc | 9 | $1.95K | 0.00% | 00.0% | Unchanged |
| Strengthening Families & Communities, LLC | 9 | $1.95K | 0.00% | +9 | New |
| Clark Wealth Partners | 7 | $1.51K | 0.00% | 00.0% | Unchanged |
| Cape Investment Advisory, Inc. | 7 | $1.51K | 0.00% | +7 | New |
| Quarry LP | 7 | $1.51K | 0.00% | +7 | New |
| Barnes Dennig Private Wealth Management LLC | 7 | $1.51K | 0.00% | +7 | New |
| Dunhill Financial, LLC | 6 | $1.43K | 0.00% | −1−14.3% | Reduced |
| Albion Financial Group | 6 | $1.30K | 0.00% | 00.0% | Unchanged |
| Quaker Wealth Management, LLC | 6 | $1.30K | 0.00% | 00.0% | Unchanged |
| AdvisorNet Financial, Inc | 6 | $1.30K | 0.00% | −8−57.1% | Reduced |
| DecisionPoint Financial, LLC | 6 | $1.26K | 0.00% | +3+100.0% | Added |
| JPL Wealth Management, LLC | 5 | $1.08K | 0.00% | +2+66.7% | Added |
| Atwood & Palmer Inc | 5 | $1.08K | 0.00% | −7−58.3% | Reduced |
| Evermay Wealth Management LLC | 5 | $1.08K | 0.00% | 00.0% | Unchanged |
| Wolff Wiese Magana LLC | 5 | $1.08K | 0.00% | 00.0% | Unchanged |
| Three Bearings Fiduciary Advisors, Inc. | 5 | $1.08K | 0.00% | 00.0% | Unchanged |
| Spectrum Wealth Advisory Group, LLC | 5 | $1.08K | 0.00% | +5 | New |
| RMG Wealth Management LLC | 5 | $1.04K | 0.00% | 00.0% | Unchanged |
| Chilton Capital Management LLC | 4 | $865 | 0.00% | 00.0% | Unchanged |
| TFC Financial Management | 4 | $865 | 0.00% | 00.0% | Unchanged |
| Breakwater Investment Management | 4 | $865 | 0.00% | 00.0% | Unchanged |
| Phillip James Consulting Co. | 4 | $864 | 0.00% | 00.0% | Unchanged |
| Davis Capital Management | 4 | $864 | 0.00% | +2+100.0% | Added |
| Motco | 4 | $864 | 0.00% | +4 | New |
| Decker Retirement Planning Inc. | 4 | $864 | 0.00% | +4 | New |
| Addison Advisors LLC | 3 | $649 | 0.00% | −151−98.1% | Reduced |
| Colonial Trust Co | 3 | $648 | 0.00% | 00.0% | Unchanged |
| Fairman Group, LLC | 3 | $648 | 0.00% | 00.0% | Unchanged |
| Halbert Hargrove Global Advisors, LLC | 2 | $491 | 0.00% | +2 | New |
| Seneschal Advisors, LLC | 2 | $433 | 0.00% | 00.0% | Unchanged |
| 3 Factor Indexing, LLC | 2 | $433 | 0.00% | 00.0% | Unchanged |
| Dogwood Wealth Management LLC | 2 | $432 | 0.00% | 00.0% | Unchanged |
| Horizon Financial Services, LLC | 2 | $432 | 0.00% | +2 | New |
| Morton Brown Family Wealth, LLC | 2 | $432 | 0.00% | +2 | New |
| Cordant, Inc. | 2 | $327 | 0.00% | +2 | New |
| NorthAvenue LLC | 1 | $217 | 0.00% | 00.0% | Unchanged |
| Maryland Capital Advisors Inc. | 1 | $217 | 0.00% | +1 | New |
| Creative Financial Designs Inc | 1 | $216 | 0.00% | −68−98.6% | Reduced |
| Triumph Capital Management | 1 | $216 | 0.00% | 00.0% | Unchanged |
| Nemes Rush Group LLC | 1 | $216 | 0.00% | 00.0% | Unchanged |
| ROSS\JOHNSON & Associates LLC | 1 | $216 | 0.00% | 00.0% | Unchanged |
| Game Plan Financial Advisors, LLC | 1 | $216 | 0.00% | +1 | New |
| Compass Financial Management LLC | 1 | $216 | 0.00% | +1 | New |
| Evolution Advisers, Inc. | 1 | $0 | 0.00% | +1 | New |
| Navigoe, LLC | 4 | $0 | 0.00% | +4 | New |
| Hara Capital LLC | 0 | $0 | 0.00% | −84−100.0% | Sold out |
| Sofinnova Investments, Inc. | 0 | $0 | 0.00% | −229,521−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −212,921−100.0% | Sold out |
| Logos Global Management LP | 0 | $0 | 0.00% | −200,000−100.0% | Sold out |
| Defilade Capital Management, L.P. | 0 | $0 | 0.00% | −96,289−100.0% | Sold out |
| Millennium Management LLC | 0 | $0 | 0.00% | −93,964−100.0% | Sold out |
| Glenview Capital Management, LLC | 0 | $0 | 0.00% | −57,019−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −48,828−100.0% | Sold out |
| Tang Capital Management LLC | 0 | $0 | 0.00% | −35,000−100.0% | Sold out |
| Impax Asset Management Group plc | 0 | $0 | 0.00% | −28,728−100.0% | Sold out |
| Atom Investors LP | 0 | $0 | 0.00% | −24,749−100.0% | Sold out |
| Munich Reinsurance Co Stock Corp in Munich | 0 | $0 | 0.00% | −23,942−100.0% | Sold out |
| Dark Forest Capital Management LP | 0 | $0 | 0.00% | −15,736−100.0% | Sold out |
| Dymon Asia Capital (Singapore) Pte. Ltd. | 0 | $0 | 0.00% | −15,000−100.0% | Sold out |
| Boothbay Fund Management, LLC | 0 | $0 | 0.00% | −14,268−100.0% | Sold out |
| Evoke Wealth, LLC | 0 | $0 | 0.00% | −13,831−100.0% | Sold out |
| Graham Capital Management, L.P. | 0 | $0 | 0.00% | −10,342−100.0% | Sold out |
| GFS Advisors, LLC | 0 | $0 | 0.00% | −23,915−100.0% | Sold out |
| Farringdon Capital, Ltd. | 0 | $0 | 0.00% | −9,054−100.0% | Sold out |
| Scotia Capital Inc. | 0 | $0 | 0.00% | −6,274−100.0% | Sold out |
| Bridgefront Capital, LLC | 0 | $0 | 0.00% | −6,010−100.0% | Sold out |
| Friedenthal Financial | 0 | $0 | 0.00% | −5,930−100.0% | Sold out |
| Taproot Management LP | 0 | $0 | 0.00% | −5,133−100.0% | Sold out |
| Burns Matteson Capital Management, LLC | 0 | $0 | 0.00% | −3,818−100.0% | Sold out |
| Winton Group Ltd | 0 | $0 | 0.00% | −3,297−100.0% | Sold out |
| ISAM Funds (UK) Ltd | 0 | $0 | 0.00% | −2,916−100.0% | Sold out |
| PDT Partners, LLC | 0 | $0 | 0.00% | −2,348−100.0% | Sold out |
| Quantitative Investment Management, LLC | 0 | $0 | 0.00% | −2,255−100.0% | Sold out |
| Persistent Asset Partners Ltd | 0 | $0 | 0.00% | −1,903−100.0% | Sold out |
| Brand Asset Management Group, Inc. | 0 | $0 | 0.00% | −1,814−100.0% | Sold out |
| Stevens Capital Management LP | 0 | $0 | 0.00% | −1,774−100.0% | Sold out |
| Capital Performance Advisors LLP | 0 | $0 | 0.00% | −1,561−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −1,558−100.0% | Sold out |
| SIH Partners, LLLP | 0 | $0 | 0.00% | −1,463−100.0% | Sold out |
| Wellington-Altus USA Inc. | 0 | $0 | 0.00% | −1,219−100.0% | Sold out |
| GTS Securities LLC | 0 | $0 | 0.00% | −1,381−100.0% | Sold out |
| Two Sigma Securities, LLC | 0 | $0 | 0.00% | −1,335−100.0% | Sold out |
| DRW Securities, LLC | 0 | $0 | 0.00% | −1,335−100.0% | Sold out |
| Collaborative Fund Advisors, LLC | 0 | $0 | 0.00% | −1,327−100.0% | Sold out |
| WMS Group LLC | 0 | $0 | 0.00% | −1,311−100.0% | Sold out |
| Patton Fund Management, Inc. | 0 | $0 | 0.00% | −1,244−100.0% | Sold out |
| Alphadyne Asset Management LP | 0 | $0 | 0.00% | −1,218−100.0% | Sold out |
| Analyst IMS Investment Management Services Ltd. | 0 | $0 | 0.00% | −1,208−100.0% | Sold out |
| Aaron Wealth Advisors | 0 | $0 | 0.00% | −1,185−100.0% | Sold out |
| Tradewinds, LLC. | 0 | $0 | 0.00% | −1,129−100.0% | Sold out |
| Poehling Capital Management, LLC | 0 | $0 | 0.00% | −1,144−100.0% | Sold out |
| Sapient Capital LLC | 0 | $0 | 0.00% | −1,143−100.0% | Sold out |
| Twinbeech Capital LP | 0 | $0 | 0.00% | −1,100−100.0% | Sold out |
| Steward Partners Investment Advisory, LLC | 0 | $0 | 0.00% | −892−100.0% | Sold out |
| Root Financial Partners, LLC | 0 | $0 | 0.00% | −341−100.0% | Sold out |
| TopTier Wealth Management, LLC | 0 | $0 | 0.00% | −336−100.0% | Sold out |
| Vermillion Wealth Management, Inc. | 0 | $0 | 0.00% | −310−100.0% | Sold out |
| Aster Capital Management (DIFC) Ltd | 0 | $0 | 0.00% | −398−100.0% | Sold out |