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, Q4 2025
Institutional positions in Biogen Inc. as of Dec 31, 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
- 1,002
- +109 vs. Q3 2025
- Shares held
- 139.7M
- +8.71M (+6.6%) vs. Q3 2025
- Total value
- $24.6B
- +$6.26B (+34.1%) vs. Q3 2025
- New holders
- 191
- 323 more added
- Sold out
- 82
- 295 more reduced
16 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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 | 1,046 | $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, Q4 2025
Shares, value and share of portfolio for each institution holding Biogen Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Rosenberg Matthew Hamilton | 35 | $6.16K | 0.00% | 00.0% | Unchanged |
| Webster Bank, N. A. | 36 | $6.34K | 0.00% | 00.0% | Unchanged |
| Cornerstone Financial Management LLC | 39 | $6.86K | 0.01% | +39 | New |
| Bank Julius Baer & Co. Ltd, Zurich | 40 | $7.04K | 0.00% | 00.0% | Unchanged |
| Anchor Investment Management, LLC | 40 | $7.04K | 0.00% | 00.0% | Unchanged |
| Cornerstone Planning Group LLC | 41 | $7.17K | 0.00% | +39+1,950.0% | Added |
| DT Investment Partners, LLC | 42 | $7.39K | 0.00% | +42 | New |
| McIlrath & Eck, LLC | 43 | $7.51K | 0.00% | 00.0% | Unchanged |
| Bartlett & Co. Wealth Management LLC | 43 | $7.57K | 0.00% | 00.0% | Unchanged |
| Cullen/Frost Bankers, Inc. | 43 | $7.57K | 0.00% | +3+7.5% | Added |
| Kilter Group LLC | 49 | $8.62K | 0.00% | +14+40.0% | Added |
| Tradewinds Capital Management, LLC | 50 | $8.80K | 0.00% | 00.0% | Unchanged |
| Financial Freedom, LLC | 50 | $8.80K | 0.00% | 00.0% | Unchanged |
| Millstone Evans Group, LLC | 50 | $8.80K | 0.01% | 00.0% | Unchanged |
| Atlantic Trust, LLC | 50 | $8.80K | 0.00% | +9+22.0% | Added |
| CBIZ Investment Advisory Services, LLC | 51 | $8.97K | 0.00% | 00.0% | Unchanged |
| Raffa Wealth Management, LLC | 51 | $8.97K | 0.00% | +16+45.7% | Added |
| LRI Investments, LLC | 52 | $9.13K | 0.00% | +46+766.7% | Added |
| Quattro Advisors LLC | 52 | $9.15K | 0.01% | +52 | New |
| Private Wealth Management Group, LLC | 52 | $9.15K | 0.00% | −2−3.7% | Reduced |
| UMA Financial Services, Inc. | 53 | $9.33K | 0.00% | 00.0% | Unchanged |
| Global X Japan Co., Ltd. | 55 | $9.68K | 0.00% | +55 | New |
| Salomon & Ludwin, LLC | 57 | $9.95K | 0.00% | 00.0% | Unchanged |
| Asset Dedication, LLC | 57 | $10.0K | 0.00% | 00.0% | Unchanged |
| ORG Partners LLC | 58 | $10.2K | 0.00% | +15+34.9% | Added |
| Westfuller Advisors, LLC | 59 | $10.4K | 0.00% | +33+126.9% | Added |
| Harbor Investment Advisory, LLC | 62 | $10.9K | 0.00% | 00.0% | Unchanged |
| Private Wealth Asset Management, LLC | 63 | $11.1K | 0.00% | 00.0% | Unchanged |
| JFS Wealth Advisors, LLC | 63 | $11.1K | 0.00% | +58+1,160.0% | Added |
| First Community Trust NA | 65 | $11.4K | 0.01% | 00.0% | Unchanged |
| Avion Wealth | 72 | $12.0K | 0.00% | −1−1.4% | Reduced |
| Smallwood Wealth Investment Management, LLC | 70 | $12.3K | 0.01% | 00.0% | Unchanged |
| Sachetta, LLC | 70 | $12.3K | 0.01% | 00.0% | Unchanged |
| Medallion Wealth Advisors, LLC | 73 | $12.8K | 0.00% | 00.0% | Unchanged |
| Cetera Trust Company, N.A | 75 | $13.2K | 0.01% | 00.0% | Unchanged |
| Adkins Seale Capital Management LLC | 75 | $13.2K | 0.01% | +75 | New |
| Steigerwald, Gordon & Koch Inc. | 79 | $13.9K | 0.00% | 00.0% | Unchanged |
| Red Tortoise LLC | 80 | $14.1K | 0.01% | −9−10.1% | Reduced |
| Adirondack Trust Co | 80 | $14.1K | 0.00% | 00.0% | Unchanged |
| Hara Capital LLC | 84 | $14.8K | 0.01% | 00.0% | Unchanged |
| Asset Planning,Inc | 84 | $14.8K | 0.01% | 00.0% | Unchanged |
| RMG Wealth Management LLC | 85 | $14.8K | 0.00% | +5+6.3% | Added |
| NBC Securities, Inc. | 85 | $15.0K | 0.00% | −18−17.5% | Reduced |
| Brown Shipley& Co Ltd | 85 | $15.0K | 0.01% | 00.0% | Unchanged |
| Grove Bank & Trust | 85 | $15.0K | 0.00% | +34+66.7% | Added |
| Centerpoint Advisors, LLC | 83 | $15.0K | 0.00% | 00.0% | Unchanged |
| Catalyst Capital Advisors LLC | 88 | $15.5K | 0.00% | +19+27.5% | Added |
| Quent Capital, LLC | 89 | $15.7K | 0.00% | +7+8.5% | Added |
| Ransom Advisory, Ltd | 90 | $15.8K | 0.01% | 00.0% | Unchanged |
| Swiss Re Ltd | 90 | $15.8K | 0.00% | +90 | New |
| VSM Wealth Advisory, LLC | 92 | $16.2K | 0.00% | 00.0% | Unchanged |
| High Note Wealth, LLC | 96 | $16.9K | 0.00% | −3−3.0% | Reduced |
| Clayton Financial Group LLC | 97 | $17.1K | 0.01% | +10+11.5% | Added |
| Delta Asset Management LLC | 100 | $17.6K | 0.00% | 00.0% | Unchanged |
| Strengthening Families & Communities, LLC | 100 | $17.6K | 0.01% | 00.0% | Unchanged |
| Broadwater Capital Management LLC | 100 | $17.6K | 0.01% | 00.0% | Unchanged |
| Independence Bank of Kentucky | 100 | $17.6K | 0.00% | +25+33.3% | Added |
| CKW Financial Group | 100 | $18.0K | 0.00% | 00.0% | Unchanged |
| Merrithew & Thorsten Inc | 106 | $18.0K | 0.02% | +106 | New |
| Basecamp Wealth Advisors LLC | 103 | $18.1K | 0.00% | +103 | New |
| Strategic Wealth Partners, Ltd. | 105 | $18.5K | 0.00% | 00.0% | Unchanged |
| Kerr Financial Planning Corp | 100 | $18.5K | 0.03% | +100 | New |
| Graney & King, LLC | 106 | $18.7K | 0.01% | 00.0% | Unchanged |
| Fideuram Asset Management (Ireland) dac | 126 | $18.8K | 0.00% | +126 | New |
| Torren Management, LLC | 107 | $18.8K | 0.01% | +107 | New |
| Bruce G. Allen Investments, LLC | 110 | $19.4K | 0.01% | 00.0% | Unchanged |
| GPS Wealth Strategies Group, LLC | 110 | $19.4K | 0.02% | −535−82.9% | Reduced |
| Intesa Sanpaolo S.p.A. | 110 | $19.4K | 0.00% | +110 | New |
| Concord Wealth Partners | 114 | $20.1K | 0.00% | 00.0% | Unchanged |
| Atlantic Union Bankshares Corp | 115 | $20.2K | 0.00% | 00.0% | Unchanged |
| Johnson Financial Group, Inc. | 115 | $20.2K | 0.00% | −4−3.4% | Reduced |
| Bell Investment Advisors, Inc | 124 | $21.8K | 0.00% | −48−27.9% | Reduced |
| Ancora Advisors, LLC | 124 | $21.8K | 0.00% | +122+6,100.0% | Added |
| Sittner & Nelson, LLC | 110 | $22.1K | 0.01% | 00.0% | Unchanged |
| NBT Bank N A | 126 | $22.2K | 0.00% | −108−46.2% | Reduced |
| Stephenson National Bank & Trust | 137 | $24.1K | 0.01% | +58+73.4% | Added |
| Reflection Asset Management | 141 | $24.8K | 0.02% | +141 | New |
| WPG Advisers, LLC | 145 | $25.5K | 0.02% | +117+417.9% | Added |
| Ogorek Anthony Joseph | 152 | $26.0K | 0.01% | −20−11.6% | Reduced |
| Addison Advisors LLC | 151 | $26.6K | 0.01% | −16−9.6% | Reduced |
| Spire Wealth Management | 159 | $28.0K | 0.00% | −7−4.2% | Reduced |
| Towarzystwo Funduszy Inwestycyjnych Pzu SA | 160 | $28.2K | 0.01% | 00.0% | Unchanged |
| Central Trust Co | 163 | $28.7K | 0.00% | 00.0% | Unchanged |
| First Horizon Corp | 169 | $29.7K | 0.00% | +169 | New |
| Private Trust Co NA | 175 | $30.8K | 0.00% | +20+12.9% | Added |
| Principia Wealth Advisory, LLC | 185 | $32.6K | 0.02% | 00.0% | Unchanged |
| Root Financial Partners, LLC | 185 | $32.6K | 0.00% | +123+198.4% | Added |
| MV Capital Management, Inc. | 194 | $34.1K | 0.00% | 00.0% | Unchanged |
| Quintet Private Bank (Europe) S.A. | 195 | $34.3K | 0.00% | −60−23.5% | Reduced |
| Keating Financial Advisory Services, Inc. | 195 | $34.3K | 0.00% | +195 | New |
| GoalVest Advisory LLC | 198 | $34.8K | 0.01% | +198 | New |
| Vision Financial Markets LLC | 200 | $35.2K | 0.04% | 00.0% | Unchanged |
| ZRC Wealth Management, LLC | 200 | $35.2K | 0.01% | +161+412.8% | Added |
| Strive Financial Group ,LLC | 200 | $35.2K | 0.02% | +200 | New |
| DV Equities, LLC | 205 | $36.1K | 0.01% | +205 | New |
| WealthCollab, LLC | 206 | $36.3K | 0.01% | 00.0% | Unchanged |
| Harbour Investments, Inc. | 215 | $37.8K | 0.00% | +8+3.9% | Added |
| Meeder Asset Management Inc | 216 | $38.0K | 0.00% | +165+323.5% | Added |
| Clear Street Markets LLC | 219 | $38.5K | 0.01% | +170+346.9% | Added |
| SHP Wealth Management | 223 | $39.2K | 0.00% | +223 | New |