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 |
|---|---|---|---|---|---|
| Atomi Financial Group, Inc. | 2,792 | $603.2K | 0.02% | +50+1.8% | Added |
| IKE Capital, LLC | 2,794 | $603.7K | 0.32% | −400−12.5% | Reduced |
| KCM Investment Advisors LLC | 2,799 | $604.8K | 0.02% | −4−0.1% | Reduced |
| Baker Avenue Asset Management, LP | 2,808 | $606.8K | 0.01% | +601+27.2% | Added |
| Tower Trust & Investment Co | 2,818 | $608.8K | 0.37% | −50−1.7% | Reduced |
| Legacy Capital Group California, Inc. | 2,844 | $614.5K | 0.19% | −57−2.0% | Reduced |
| Huntington National Bank | 2,848 | $615.3K | 0.00% | +241+9.2% | Added |
| Sax Wealth Advisors, LLC | 3,364 | $616.8K | 0.03% | +34+1.0% | Added |
| ExodusPoint Capital Management, LP | 2,871 | $620.3K | 0.01% | −149,122−98.1% | Reduced |
| CSS LLC | 2,880 | $622.3K | 0.03% | +160+5.9% | Added |
| Caerus Investment Advisors, LLC | 2,893 | $625.1K | 0.21% | +92+3.3% | Added |
| Hunter Associates Investment Management LLC | 2,901 | $626.0K | 0.07% | −38−1.3% | Reduced |
| EverSource Wealth Advisors, LLC | 2,906 | $627.9K | 0.02% | −272−8.6% | Reduced |
| State of Wyoming | 2,923 | $631.5K | 0.06% | +1,627+125.5% | Added |
| Atlas Capital Advisors LLC | 2,930 | $633.1K | 0.07% | −28−0.9% | Reduced |
| Waddell & Associates, LLC | 2,967 | $641.0K | 0.03% | +703+31.1% | Added |
| Motley Fool Asset Management LLC | 2,978 | $643.4K | 0.02% | +59+2.0% | Added |
| RDA Financial Network | 3,000 | $648.2K | 0.14% | −125−4.0% | Reduced |
| Roberts Glore & Co Inc | 3,001 | $648.4K | 0.16% | 00.0% | Unchanged |
| Evergreen Capital Management LLC | 3,003 | $648.8K | 0.01% | −78−2.5% | Reduced |
| Aprio Wealth Management, LLC | 3,009 | $650.1K | 0.03% | +159+5.6% | Added |
| Pitcairn Wealth Advisors LLC | 3,010 | $650.3K | 0.07% | +313+11.6% | Added |
| Steel Peak Wealth Management LLC | 3,011 | $650.6K | 0.02% | +307+11.4% | Added |
| Hills Bank & Trust Co | 3,088 | $667.2K | 0.03% | −402−11.5% | Reduced |
| Tiaa-Cref Individual & Institutional Services, LLC | 3,091 | $667.8K | 0.00% | +274+9.7% | Added |
| Charles Schwab Trust Co | 3,101 | $670.0K | 0.04% | +3,101 | New |
| Pictet & Cie (Europe) SA | 3,103 | $670.4K | 0.01% | +223+7.7% | Added |
| Brown Advisory Inc | 3,155 | $681.7K | 0.00% | −3,689−53.9% | Reduced |
| Davis Investment Partners, LLC | 3,184 | $687.9K | 0.21% | −396−11.1% | Reduced |
| Stoneridge Investment Partners LLC | 3,414 | $693.0K | 0.45% | −3,615−51.4% | Reduced |
| South Dakota Investment Council | 3,213 | $694.0K | 0.01% | 00.0% | Unchanged |
| Trust Co of Toledo NA | 3,217 | $695.1K | 0.06% | +252+8.5% | Added |
| Massachusetts Wealth Management | 3,230 | $697.9K | 0.27% | +50+1.6% | Added |
| XTX Topco Ltd | 3,239 | $699.8K | 0.01% | +3,239 | New |
| Vestcor Inc | 3,246 | $701.0K | 0.02% | 00.0% | Unchanged |
| Citizens Financial Group Inc | 3,282 | $709.1K | 0.01% | +936+39.9% | Added |
| NLB Skladi, upravljanje premozenja, d.o.o. | 3,293 | $711.5K | 0.03% | +238+7.8% | Added |
| Lifeworks Advisors, LLC | 3,326 | $718.5K | 0.08% | −139−4.0% | Reduced |
| Avestar Capital, LLC | 3,371 | $728.4K | 0.04% | −233−6.5% | Reduced |
| Emerald Mutual Fund Advisers Trust | 3,389 | $732.2K | 0.03% | +272+8.7% | Added |
| F/M Investments LLC | 3,389 | $732.2K | 0.04% | +272+8.7% | Added |
| Ironwood Financial, llc | 3,535 | $738.9K | 0.12% | 00.0% | Unchanged |
| Everence Capital Management Inc | 3,450 | $745.0K | 0.04% | 00.0% | Unchanged |
| Syon Capital LLC | 3,492 | $754.5K | 0.03% | +362+11.6% | Added |
| Pavaki Capital Management LLC | 3,500 | $756.2K | 0.43% | 00.0% | Unchanged |
| Mount Yale Investment Advisors, LLC | 3,519 | $760.3K | 0.01% | −205−5.5% | Reduced |
| USA Financial Formulas | 3,548 | $766.6K | 0.14% | +3,548 | New |
| Atria Investments LLC | 3,573 | $772.0K | 0.01% | +1,136+46.6% | Added |
| Ellevest, Inc. | 3,573 | $772.1K | 0.09% | −373−9.5% | Reduced |
| Empirical Financial Services, LLC d.b.a. Empirical Wealth Management | 3,601 | $778.0K | 0.01% | +850+30.9% | Added |
| Xxi Wealth, LLC | 3,603 | $778.5K | 0.36% | −48−1.3% | Reduced |
| Osmosis Investment Management UK Ltd | 3,629 | $784.1K | 0.04% | −3,023−45.4% | Reduced |
| Siemens Fonds Invest GmbH | 3,633 | $784.9K | 0.04% | 00.0% | Unchanged |
| Farther Finance Advisors, LLC | 3,649 | $788.5K | 0.01% | +52+1.4% | Added |
| Jones Kertz & Associates, Inc. | 3,666 | $792.1K | 0.37% | −565−13.4% | Reduced |
| Warren Averett Asset Management, LLC | 3,678 | $794.7K | 0.00% | +527+16.7% | Added |
| Wahed Invest LLC | 3,696 | $798.6K | 0.08% | +21+0.6% | Added |
| Bessemer Group Inc | 3,701 | $799.0K | 0.00% | +574+18.4% | Added |
| Securian Asset Management, Inc | 3,945 | $812.6K | 0.03% | 00.0% | Unchanged |
| Kentucky Retirement Systems Insurance Trust Fund | 3,827 | $826.9K | 0.05% | −17−0.4% | Reduced |
| Farmers & Merchants Investments Inc | 3,830 | $827.5K | 0.02% | −111−2.8% | 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 |
| Savant Capital, LLC | 3,896 | $839.5K | 0.00% | −2,583−39.9% | Reduced |
| AlphaCentric Advisors LLC | 3,891 | $840.7K | 0.71% | +56+1.5% | Added |
| First County Bank | 3,933 | $849.8K | 0.40% | −233−5.6% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 3,948 | $853.0K | 0.00% | +3,948 | New |
| Texas Yale Capital Corp. | 3,987 | $861.4K | 0.02% | 00.0% | Unchanged |
| Savvy Advisors, Inc. | 3,996 | $863.4K | 0.02% | +132+3.4% | Added |
| 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 |
| Intech Investment Management LLC | 4,092 | $884.1K | 0.01% | 00.0% | Unchanged |
| Pinnacle Associates Ltd | 4,102 | $886.2K | 0.01% | +103+2.6% | Added |
| Summitry LLC | 4,137 | $893.8K | 0.03% | −600−12.7% | Reduced |
| Parallel Advisors, LLC | 4,145 | $895.6K | 0.01% | −222−5.1% | Reduced |
| Frec Markets, Inc. | 4,158 | $898.4K | 0.08% | +1,530+58.2% | Added |
| E Fund Management Co., Ltd. | 4,174 | $901.8K | 0.02% | −1,035−19.9% | Reduced |
| Providence First Trust Co | 4,175 | $902.0K | 0.25% | +1,096+35.6% | Added |
| Blackhawk Capital Partners LLC. | 4,266 | $921.7K | 0.30% | +1,840+75.8% | Added |
| North Dakota State Investment Board | 4,343 | $938.3K | 0.04% | −2,327−34.9% | Reduced |
| V-Square Quantitative Management LLC | 4,349 | $939.6K | 0.09% | −9−0.2% | Reduced |
| BNP Paribas | 4,360 | $940.7K | 0.03% | +3,660+522.9% | Added |
| MUFG Securities Americas Inc. | 4,447 | $960.8K | 0.05% | +386+9.5% | Added |
| Twin Capital Management Inc | 4,465 | $964.7K | 0.11% | +35+0.8% | Added |
| Tocqueville Asset Management L.P. | 4,486 | $969.2K | 0.01% | +134+3.1% | Added |
| Gilder Gagnon Howe & Co LLC | 4,528 | $978.3K | 0.01% | −30−0.7% | Reduced |
| Beacon Pointe Advisors, LLC | 4,544 | $981.1K | 0.00% | +461+11.3% | Added |
| EFG International AG | 4,582 | $990.0K | 0.02% | +125+2.8% | Added |
| Meeder Advisory Services, Inc. | 4,608 | $995.6K | 0.04% | −113−2.4% | Reduced |
| J. Safra Sarasin Holding AG | 4,895 | $1.00M | 0.01% | −103−2.1% | Reduced |
| Chicago Partners Investment Group LLC | 5,038 | $1.01M | 0.02% | +440+9.6% | Added |
| Vident Advisory, LLC | 4,698 | $1.02M | 0.01% | −403−7.9% | Reduced |
| Wealthcare Advisory Partners LLC | 4,728 | $1.02M | 0.02% | −661−12.3% | Reduced |
| Northwestern Mutual Investment Management Company, LLC | 4,734 | $1.02M | 0.01% | +38+0.8% | Added |
| Holocene Advisors, LP | 4,793 | $1.04M | 0.00% | 00.0% | Unchanged |
| Arkadios Wealth Advisors | 4,806 | $1.04M | 0.02% | +25+0.5% | Added |
| Abacus Wealth Partners, LLC | 4,808 | $1.04M | 0.11% | −4,345−47.5% | Reduced |
| Sterling Capital Management LLC | 4,810 | $1.04M | 0.02% | −326−6.3% | Reduced |
| CSM Advisors, LLC | 4,815 | $1.04M | 0.02% | −493−9.3% | Reduced |
| E. Ohman J:or Asset Management AB | 4,819 | $1.04M | 0.02% | 00.0% | Unchanged |