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 |
|---|---|---|---|---|---|
| Mount Yale Investment Advisors, LLC | 3,519 | $760.3K | 0.01% | −205−5.5% | Reduced |
| Pavaki Capital Management LLC | 3,500 | $756.2K | 0.43% | 00.0% | Unchanged |
| Syon Capital LLC | 3,492 | $754.5K | 0.03% | +362+11.6% | Added |
| Everence Capital Management Inc | 3,450 | $745.0K | 0.04% | 00.0% | Unchanged |
| Ironwood Financial, llc | 3,535 | $738.9K | 0.12% | 00.0% | Unchanged |
| 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 |
| Avestar Capital, LLC | 3,371 | $728.4K | 0.04% | −233−6.5% | Reduced |
| Lifeworks Advisors, LLC | 3,326 | $718.5K | 0.08% | −139−4.0% | Reduced |
| NLB Skladi, upravljanje premozenja, d.o.o. | 3,293 | $711.5K | 0.03% | +238+7.8% | Added |
| Citizens Financial Group Inc | 3,282 | $709.1K | 0.01% | +936+39.9% | Added |
| Vestcor Inc | 3,246 | $701.0K | 0.02% | 00.0% | Unchanged |
| XTX Topco Ltd | 3,239 | $699.8K | 0.01% | +3,239 | New |
| Massachusetts Wealth Management | 3,230 | $697.9K | 0.27% | +50+1.6% | Added |
| Trust Co of Toledo NA | 3,217 | $695.1K | 0.06% | +252+8.5% | Added |
| South Dakota Investment Council | 3,213 | $694.0K | 0.01% | 00.0% | Unchanged |
| Stoneridge Investment Partners LLC | 3,414 | $693.0K | 0.45% | −3,615−51.4% | Reduced |
| Davis Investment Partners, LLC | 3,184 | $687.9K | 0.21% | −396−11.1% | Reduced |
| Brown Advisory Inc | 3,155 | $681.7K | 0.00% | −3,689−53.9% | Reduced |
| Pictet & Cie (Europe) SA | 3,103 | $670.4K | 0.01% | +223+7.7% | Added |
| Charles Schwab Trust Co | 3,101 | $670.0K | 0.04% | +3,101 | New |
| Tiaa-Cref Individual & Institutional Services, LLC | 3,091 | $667.8K | 0.00% | +274+9.7% | Added |
| Hills Bank & Trust Co | 3,088 | $667.2K | 0.03% | −402−11.5% | Reduced |
| Steel Peak Wealth Management LLC | 3,011 | $650.6K | 0.02% | +307+11.4% | Added |
| Pitcairn Wealth Advisors LLC | 3,010 | $650.3K | 0.07% | +313+11.6% | Added |
| Aprio Wealth Management, LLC | 3,009 | $650.1K | 0.03% | +159+5.6% | Added |
| Evergreen Capital Management LLC | 3,003 | $648.8K | 0.01% | −78−2.5% | Reduced |
| Roberts Glore & Co Inc | 3,001 | $648.4K | 0.16% | 00.0% | Unchanged |
| RDA Financial Network | 3,000 | $648.2K | 0.14% | −125−4.0% | Reduced |
| Motley Fool Asset Management LLC | 2,978 | $643.4K | 0.02% | +59+2.0% | Added |
| Waddell & Associates, LLC | 2,967 | $641.0K | 0.03% | +703+31.1% | Added |
| Atlas Capital Advisors LLC | 2,930 | $633.1K | 0.07% | −28−0.9% | Reduced |
| State of Wyoming | 2,923 | $631.5K | 0.06% | +1,627+125.5% | Added |
| EverSource Wealth Advisors, LLC | 2,906 | $627.9K | 0.02% | −272−8.6% | Reduced |
| Hunter Associates Investment Management LLC | 2,901 | $626.0K | 0.07% | −38−1.3% | Reduced |
| Caerus Investment Advisors, LLC | 2,893 | $625.1K | 0.21% | +92+3.3% | Added |
| CSS LLC | 2,880 | $622.3K | 0.03% | +160+5.9% | Added |
| ExodusPoint Capital Management, LP | 2,871 | $620.3K | 0.01% | −149,122−98.1% | Reduced |
| Sax Wealth Advisors, LLC | 3,364 | $616.8K | 0.03% | +34+1.0% | Added |
| Huntington National Bank | 2,848 | $615.3K | 0.00% | +241+9.2% | Added |
| Legacy Capital Group California, Inc. | 2,844 | $614.5K | 0.19% | −57−2.0% | Reduced |
| Tower Trust & Investment Co | 2,818 | $608.8K | 0.37% | −50−1.7% | Reduced |
| Baker Avenue Asset Management, LP | 2,808 | $606.8K | 0.01% | +601+27.2% | Added |
| KCM Investment Advisors LLC | 2,799 | $604.8K | 0.02% | −4−0.1% | Reduced |
| IKE Capital, LLC | 2,794 | $603.7K | 0.32% | −400−12.5% | Reduced |
| Atomi Financial Group, Inc. | 2,792 | $603.2K | 0.02% | +50+1.8% | Added |
| Premier Path Wealth Partners, LLC | 2,786 | $601.9K | 0.07% | −737−20.9% | Reduced |
| Azzad Asset Management Inc | 2,784 | $601.5K | 0.05% | +2,784 | New |
| Westwood Holdings Group Inc. | 2,782 | $601.1K | 0.00% | +2,782 | New |
| Wedmont Private Capital | 3,012 | $599.8K | 0.02% | +104+3.6% | Added |
| Tema ETFs LLC | 2,772 | $598.9K | 0.02% | +145+5.5% | Added |
| Uncommon Cents Investing LLC | 2,769 | $598.3K | 0.13% | −10−0.4% | Reduced |
| Rothschild Investment LLC | 2,739 | $591.7K | 0.02% | +1,830+201.3% | Added |
| Klingenstein Fields & Co LP | 2,731 | $590.1K | 0.02% | 00.0% | Unchanged |
| Horizon Kinetics Asset Management LLC | 2,726 | $589.0K | 0.01% | −131−4.6% | Reduced |
| Crestwood Advisors Group LLC | 2,725 | $588.7K | 0.01% | +244+9.8% | Added |
| Proficio Capital Partners LLC | 2,701 | $583.6K | 0.02% | +2,701 | New |
| Northwest & Ethical Investments L.P. | 2,693 | $582.2K | 0.01% | +693+34.7% | Added |
| Oppenheimer & Co Inc | 2,666 | $576.0K | 0.01% | −54−2.0% | Reduced |
| Westside Investment Management, Inc. | 2,634 | $569.1K | 0.07% | −3−0.1% | Reduced |
| RSM US Wealth Management LLC | 2,633 | $568.9K | 0.01% | +253+10.6% | Added |
| Parcion Private Wealth LLC | 2,609 | $563.7K | 0.03% | +469+21.9% | Added |
| Eagle Global Advisors LLC | 2,609 | $563.6K | 0.02% | +9+0.3% | Added |
| Advus Financial Partners, LLC | 2,566 | $554.4K | 0.13% | −56−2.1% | Reduced |
| Nwam LLC | 2,553 | $551.6K | 0.03% | +1,412+123.8% | Added |
| Assetmark, Inc | 2,535 | $547.8K | 0.00% | −155−5.8% | Reduced |
| TD Private Client Wealth LLC | 2,512 | $542.7K | 0.01% | +603+31.6% | Added |
| Private Advisor Group, LLC | 2,510 | $542.3K | 0.00% | −2,139−46.0% | Reduced |
| DKRT Investments Corp. | 2,500 | $540.1K | 0.13% | 00.0% | Unchanged |
| 9823 Capital, L.P. | 2,494 | $538.9K | 0.36% | +2,494 | New |
| Ocean Capital Management, LLC | 2,475 | $534.7K | 0.10% | −65−2.6% | Reduced |
| BSW Wealth Partners | 2,462 | $531.9K | 0.06% | +388+18.7% | Added |
| TCW Group Inc | 2,461 | $531.7K | 0.00% | +123+5.3% | Added |
| Prime Capital Investment Advisors, LLC | 2,427 | $524.5K | 0.01% | −603−19.9% | Reduced |
| Hantz Financial Services, Inc. | 2,424 | $524.0K | 0.01% | +267+12.4% | Added |
| TFB Advisors LLC | 2,424 | $523.7K | 0.23% | +10.0% | Added |
| Personal Cfo Solutions, LLC | 2,416 | $522.0K | 0.08% | +54+2.3% | Added |
| Mission Wealth Management, LP | 2,387 | $515.8K | 0.01% | +766+47.3% | Added |
| Transcend Wealth Collective, LLC | 2,363 | $510.6K | 0.03% | +533+29.1% | Added |
| Fayez Sarofim & Co | 2,300 | $496.9K | 0.00% | 00.0% | Unchanged |
| Parallax Volatility Advisers, L.P. | 2,291 | $495.0K | 0.02% | +602+35.6% | Added |
| Concurrent Investment Advisors, LLC | 2,272 | $490.9K | 0.00% | +50+2.3% | Added |
| Richwood Investment Advisors, LLC | 2,267 | $489.7K | 0.34% | +235+11.6% | Added |
| Simplicity Wealth,LLC | 2,259 | $488.1K | 0.02% | +110+5.1% | Added |
| Apollon Wealth Management, LLC | 2,210 | $477.5K | 0.01% | +768+53.3% | Added |
| Oppenheimer Asset Management Inc. | 2,207 | $476.8K | 0.00% | +3+0.1% | Added |
| Tompkins Financial Corp | 2,200 | $475.3K | 0.03% | +2,200 | New |
| Axxion S.A. | 2,200 | $475.3K | 0.03% | +2,200 | New |
| Navellier & Associates Inc | 2,164 | $467.6K | 0.04% | 00.0% | Unchanged |
| Smartleaf Asset Management LLC | 2,125 | $460.4K | 0.01% | 00.0% | Unchanged |
| Evercore Wealth Management, LLC | 2,112 | $456.3K | 0.01% | 00.0% | Unchanged |
| National Asset Management, Inc. | 2,094 | $453.6K | 0.02% | +30+1.5% | Added |
| Ramiah Investment Group | 2,085 | $450.5K | 0.34% | +2,085 | New |
| Blackstone Group Inc. | 2,060 | $445.1K | 0.00% | +2,060 | New |
| Capital Investment Advisors, LLC | 2,045 | $441.8K | 0.01% | −42−2.0% | Reduced |
| QTR Family Wealth, LLC | 2,041 | $441.0K | 0.15% | +51+2.6% | Added |
| Evolve Private Wealth, LLC | 2,032 | $439.1K | 0.03% | −1,504−42.5% | Reduced |
| EP Wealth Advisors, LLC | 2,024 | $437.3K | 0.00% | +323+19.0% | Added |
| Groupama Asset Managment | 2,017 | $435.8K | 0.01% | −6,736−77.0% | Reduced |
| AlphaCore Capital LLC | 2,010 | $434.3K | 0.01% | +678+50.9% | Added |