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, Q3 2025
Institutional positions in Biogen Inc. as of Sep 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
- 909
- +52 vs. Q2 2025
- Shares held
- 131.3M
- +3.52M (+2.8%) vs. Q2 2025
- Total value
- $18.4B
- +$2.32B (+14.5%) vs. Q2 2025
- New holders
- 125
- 323 more added
- Sold out
- 73
- 268 more reduced
10 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2025
Shares, value and share of portfolio for each institution holding Biogen Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Rakuten Securities, Inc. | 49 | $6.86K | 0.00% | −130−72.6% | Reduced |
| Clear Street Markets LLC | 49 | $6.86K | 0.00% | +49 | New |
| Tradewinds Capital Management, LLC | 50 | $7.00K | 0.00% | 00.0% | Unchanged |
| Financial Freedom, LLC | 50 | $7.00K | 0.00% | 00.0% | Unchanged |
| Millstone Evans Group, LLC | 50 | $7.00K | 0.00% | 00.0% | Unchanged |
| Heartwood Wealth Advisors LLC | 50 | $7.00K | 0.00% | +50 | New |
| Grove Bank & Trust | 51 | $7.14K | 0.00% | 00.0% | Unchanged |
| Meeder Asset Management Inc | 51 | $7.14K | 0.00% | +1+2.0% | Added |
| CBIZ Investment Advisory Services, LLC | 51 | $7.14K | 0.00% | +28+121.7% | Added |
| UMA Financial Services, Inc. | 53 | $7.42K | 0.00% | +11+26.2% | Added |
| Private Wealth Management Group, LLC | 54 | $7.57K | 0.00% | +7+14.9% | Added |
| Tortoise Investment Management, LLC | 56 | $7.84K | 0.00% | +7+14.3% | Added |
| Asset Dedication, LLC | 57 | $7.99K | 0.00% | −17−23.0% | Reduced |
| Saranac Partners Ltd | 57 | $7.99K | 0.00% | +57 | New |
| Hemington Wealth Management | 59 | $8.00K | 0.00% | +14+31.1% | Added |
| Montag A & Associates Inc | 60 | $8.40K | 0.00% | 00.0% | Unchanged |
| Harbor Investment Advisory, LLC | 62 | $8.69K | 0.00% | −12−16.2% | Reduced |
| Root Financial Partners, LLC | 62 | $8.69K | 0.00% | +62 | New |
| Private Wealth Asset Management, LLC | 63 | $8.82K | 0.00% | 00.0% | Unchanged |
| Prestige Wealth Management Group LLC | 64 | $8.97K | 0.00% | +26+68.4% | Added |
| First Community Trust NA | 65 | $9.11K | 0.01% | 00.0% | Unchanged |
| Future Financial Wealth Managment LLC | 65 | $9.11K | 0.01% | 00.0% | Unchanged |
| Salomon & Ludwin, LLC | 57 | $9.11K | 0.00% | +57 | New |
| Catalyst Capital Advisors LLC | 69 | $9.67K | 0.00% | −20−22.5% | Reduced |
| Smallwood Wealth Investment Management, LLC | 70 | $9.80K | 0.01% | 00.0% | Unchanged |
| Sachetta, LLC | 70 | $9.81K | 0.00% | 00.0% | Unchanged |
| Avion Wealth | 73 | $10.0K | 0.00% | −1−1.4% | Reduced |
| Medallion Wealth Advisors, LLC | 73 | $10.2K | 0.00% | −42−36.5% | Reduced |
| Independence Bank of Kentucky | 75 | $10.5K | 0.00% | 00.0% | Unchanged |
| Cetera Trust Company, N.A | 75 | $10.5K | 0.01% | 00.0% | Unchanged |
| Mountain Hill Investment Partners Corp. | 75 | $10.5K | 0.01% | 00.0% | Unchanged |
| Stephenson National Bank & Trust | 79 | $11.1K | 0.00% | +4+5.3% | Added |
| Steigerwald, Gordon & Koch Inc. | 79 | $11.1K | 0.00% | +79 | New |
| Adirondack Trust Co | 80 | $11.2K | 0.00% | 00.0% | Unchanged |
| Union Bancaire Privee, UBP SA | 82 | $11.3K | 0.00% | 00.0% | Unchanged |
| Quent Capital, LLC | 82 | $11.5K | 0.00% | +82 | New |
| Asset Planning,Inc | 84 | $11.8K | 0.01% | −42−33.3% | Reduced |
| Hara Capital LLC | 84 | $11.8K | 0.01% | 00.0% | Unchanged |
| RMG Wealth Management LLC | 80 | $11.9K | 0.00% | 00.0% | Unchanged |
| Brown Shipley& Co Ltd | 85 | $11.9K | 0.01% | 00.0% | Unchanged |
| Centerpoint Advisors, LLC | 83 | $12.0K | 0.00% | 00.0% | Unchanged |
| Clayton Financial Group LLC | 87 | $12.2K | 0.01% | +87 | New |
| Red Tortoise LLC | 89 | $12.5K | 0.01% | 00.0% | Unchanged |
| Ransom Advisory, Ltd | 90 | $12.6K | 0.01% | 00.0% | Unchanged |
| VSM Wealth Advisory, LLC | 92 | $12.9K | 0.00% | 00.0% | Unchanged |
| E Fund Management (Hong Kong) Co., Ltd. | 99 | $13.9K | 0.01% | +59+147.5% | Added |
| High Note Wealth, LLC | 99 | $13.9K | 0.00% | +64+182.9% | Added |
| Delta Asset Management LLC | 100 | $14.0K | 0.00% | 00.0% | Unchanged |
| Strengthening Families & Communities, LLC | 100 | $14.0K | 0.00% | 00.0% | Unchanged |
| Broadwater Capital Management LLC | 100 | $14.0K | 0.01% | −12,459−99.2% | Reduced |
| Global Trust Asset Management, LLC | 100 | $14.0K | 0.01% | +100 | New |
| NBC Securities, Inc. | 103 | $14.4K | 0.00% | −51−33.1% | Reduced |
| Strategic Wealth Partners, Ltd. | 105 | $14.7K | 0.00% | −175−62.5% | Reduced |
| Graney & King, LLC | 106 | $14.8K | 0.01% | 00.0% | Unchanged |
| CKW Financial Group | 100 | $15.0K | 0.00% | 00.0% | Unchanged |
| Cary Street Partner Investment Advisory LLC | 109 | $15.3K | 0.01% | +109 | New |
| Sittner & Nelson, LLC | 110 | $15.4K | 0.01% | 00.0% | Unchanged |
| Bruce G. Allen Investments, LLC | 110 | $15.4K | 0.01% | +5+4.8% | Added |
| Concord Wealth Partners | 114 | $16.0K | 0.00% | −114−50.0% | Reduced |
| Atlantic Union Bankshares Corp | 115 | $16.1K | 0.00% | 00.0% | Unchanged |
| North Capital, Inc. | 117 | $16.4K | 0.01% | +1+0.9% | Added |
| Johnson Financial Group, Inc. | 119 | $16.7K | 0.00% | +80+205.1% | Added |
| AllSquare Wealth Management LLC | 153 | $21.4K | 0.01% | 00.0% | Unchanged |
| Private Trust Co NA | 155 | $21.7K | 0.00% | −11−6.6% | Reduced |
| Towarzystwo Funduszy Inwestycyjnych Pzu SA | 160 | $22.4K | 0.01% | −450−73.8% | Reduced |
| Global Retirement Partners, LLC | 162 | $22.7K | 0.00% | +60+58.8% | Added |
| Trust Co | 163 | $22.8K | 0.00% | 00.0% | Unchanged |
| Central Trust Co | 163 | $22.8K | 0.00% | 00.0% | Unchanged |
| Spire Wealth Management | 166 | $23.3K | 0.00% | +18+12.2% | Added |
| Rise Advisors, LLC | 166 | $23.3K | 0.01% | +18+12.2% | Added |
| Addison Advisors LLC | 167 | $23.4K | 0.01% | +41+32.5% | Added |
| Ogorek Anthony Joseph | 172 | $24.0K | 0.01% | 00.0% | Unchanged |
| Bell Investment Advisors, Inc | 172 | $24.1K | 0.00% | +70+68.6% | Added |
| Principia Wealth Advisory, LLC | 185 | $25.9K | 0.02% | +2+1.1% | Added |
| MV Capital Management, Inc. | 194 | $27.2K | 0.00% | +14+7.8% | Added |
| CoreCap Advisors, LLC | 199 | $27.9K | 0.00% | −150−43.0% | Reduced |
| Vision Financial Markets LLC | 200 | $28.0K | 0.02% | 00.0% | Unchanged |
| WealthCollab, LLC | 206 | $28.9K | 0.01% | +35+20.5% | Added |
| Harbour Investments, Inc. | 207 | $29.0K | 0.00% | +6+3.0% | Added |
| Capital Advisors, Ltd. LLC | 232 | $32.0K | 0.00% | +52+28.9% | Added |
| True Wealth Design, LLC | 233 | $32.6K | 0.01% | +90+62.9% | Added |
| NBT Bank N A | 234 | $32.8K | 0.00% | −50−17.6% | Reduced |
| GW&K Investment Management, LLC | 239 | $33.0K | 0.00% | −21−8.1% | Reduced |
| Twin Lakes Capital Management, LLC | 250 | $35.0K | 0.02% | 00.0% | Unchanged |
| WFA of San Diego, LLC | 253 | $35.4K | 0.02% | 00.0% | Unchanged |
| Quintet Private Bank (Europe) S.A. | 255 | $35.7K | 0.00% | 00.0% | Unchanged |
| Golden State Wealth Management, LLC | 265 | $37.1K | 0.00% | 00.0% | Unchanged |
| Itau Unibanco Holding S.A. | 271 | $38.0K | 0.00% | −2−0.7% | Reduced |
| Costello Asset Management, INC | 300 | $42.0K | 0.01% | 00.0% | Unchanged |
| Newbridge Financial Services Group, Inc. | 300 | $42.0K | 0.01% | 00.0% | Unchanged |
| Hopwood Financial Services, Inc. | 300 | $42.0K | 0.03% | 00.0% | Unchanged |
| Bogart Wealth, LLC | 313 | $43.8K | 0.00% | +104+49.8% | Added |
| MCF Advisors LLC | 324 | $45.4K | 0.00% | 00.0% | Unchanged |
| Sentry Investment Management LLC | 305 | $46.0K | 0.03% | +305 | New |
| Optimum Investment Advisors | 335 | $46.9K | 0.02% | 00.0% | Unchanged |
| FSA Wealth Management LLC | 344 | $48.2K | 0.02% | 00.0% | Unchanged |
| ORG Wealth Partners, LLC | 349 | $48.9K | 0.01% | +349 | New |
| Ameritas Advisory Services, LLC | 353 | $49.4K | 0.00% | −256−42.0% | Reduced |
| Armstrong Advisory Group, Inc | 356 | $49.9K | 0.00% | 00.0% | Unchanged |
| Aventura Private Wealth, LLC | 367 | $51.4K | 0.02% | −35−8.7% | Reduced |