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, 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 | 1,047 | $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, 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 |
|---|---|---|---|---|---|
| True Wealth Design, LLC | 236 | $41.5K | 0.01% | +3+1.3% | Added |
| Capital Advisors, Ltd. LLC | 232 | $41.0K | 0.01% | 00.0% | Unchanged |
| SHP Wealth Management | 223 | $39.2K | 0.00% | +223 | New |
| Clear Street Markets LLC | 219 | $38.5K | 0.01% | +170+346.9% | Added |
| Meeder Asset Management Inc | 216 | $38.0K | 0.00% | +165+323.5% | Added |
| Harbour Investments, Inc. | 215 | $37.8K | 0.00% | +8+3.9% | Added |
| WealthCollab, LLC | 206 | $36.3K | 0.01% | 00.0% | Unchanged |
| DV Equities, LLC | 205 | $36.1K | 0.01% | +205 | 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 |
| GoalVest Advisory LLC | 198 | $34.8K | 0.01% | +198 | New |
| 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 |
| MV Capital Management, Inc. | 194 | $34.1K | 0.00% | 00.0% | Unchanged |
| 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 |
| Private Trust Co NA | 175 | $30.8K | 0.00% | +20+12.9% | Added |
| First Horizon Corp | 169 | $29.7K | 0.00% | +169 | New |
| Central Trust Co | 163 | $28.7K | 0.00% | 00.0% | Unchanged |
| Towarzystwo Funduszy Inwestycyjnych Pzu SA | 160 | $28.2K | 0.01% | 00.0% | Unchanged |
| Spire Wealth Management | 159 | $28.0K | 0.00% | −7−4.2% | Reduced |
| Addison Advisors LLC | 151 | $26.6K | 0.01% | −16−9.6% | Reduced |
| Ogorek Anthony Joseph | 152 | $26.0K | 0.01% | −20−11.6% | Reduced |
| WPG Advisers, LLC | 145 | $25.5K | 0.02% | +117+417.9% | Added |
| Reflection Asset Management | 141 | $24.8K | 0.02% | +141 | New |
| Stephenson National Bank & Trust | 137 | $24.1K | 0.01% | +58+73.4% | Added |
| NBT Bank N A | 126 | $22.2K | 0.00% | −108−46.2% | Reduced |
| Sittner & Nelson, LLC | 110 | $22.1K | 0.01% | 00.0% | Unchanged |
| 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 |
| Johnson Financial Group, Inc. | 115 | $20.2K | 0.00% | −4−3.4% | Reduced |
| Atlantic Union Bankshares Corp | 115 | $20.2K | 0.00% | 00.0% | Unchanged |
| Concord Wealth Partners | 114 | $20.1K | 0.00% | 00.0% | Unchanged |
| Intesa Sanpaolo S.p.A. | 110 | $19.4K | 0.00% | +110 | New |
| GPS Wealth Strategies Group, LLC | 110 | $19.4K | 0.02% | −535−82.9% | Reduced |
| Bruce G. Allen Investments, LLC | 110 | $19.4K | 0.01% | 00.0% | Unchanged |
| Torren Management, LLC | 107 | $18.8K | 0.01% | +107 | New |
| Fideuram Asset Management (Ireland) dac | 126 | $18.8K | 0.00% | +126 | New |
| Graney & King, LLC | 106 | $18.7K | 0.01% | 00.0% | Unchanged |
| Kerr Financial Planning Corp | 100 | $18.5K | 0.03% | +100 | New |
| Strategic Wealth Partners, Ltd. | 105 | $18.5K | 0.00% | 00.0% | Unchanged |
| Basecamp Wealth Advisors LLC | 103 | $18.1K | 0.00% | +103 | New |
| CKW Financial Group | 100 | $18.0K | 0.00% | 00.0% | Unchanged |
| Merrithew & Thorsten Inc | 106 | $18.0K | 0.02% | +106 | New |
| 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 |
| Clayton Financial Group LLC | 97 | $17.1K | 0.01% | +10+11.5% | Added |
| High Note Wealth, LLC | 96 | $16.9K | 0.00% | −3−3.0% | Reduced |
| VSM Wealth Advisory, LLC | 92 | $16.2K | 0.00% | 00.0% | Unchanged |
| Ransom Advisory, Ltd | 90 | $15.8K | 0.01% | 00.0% | Unchanged |
| Swiss Re Ltd | 90 | $15.8K | 0.00% | +90 | New |
| Quent Capital, LLC | 89 | $15.7K | 0.00% | +7+8.5% | Added |
| Catalyst Capital Advisors LLC | 88 | $15.5K | 0.00% | +19+27.5% | Added |
| Centerpoint Advisors, LLC | 83 | $15.0K | 0.00% | 00.0% | Unchanged |
| 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 |
| RMG Wealth Management LLC | 85 | $14.8K | 0.00% | +5+6.3% | Added |
| Hara Capital LLC | 84 | $14.8K | 0.01% | 00.0% | Unchanged |
| Asset Planning,Inc | 84 | $14.8K | 0.01% | 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 |
| Steigerwald, Gordon & Koch Inc. | 79 | $13.9K | 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 |
| Medallion Wealth Advisors, LLC | 73 | $12.8K | 0.00% | 00.0% | Unchanged |
| Sachetta, LLC | 70 | $12.3K | 0.01% | 00.0% | Unchanged |
| Smallwood Wealth Investment Management, LLC | 70 | $12.3K | 0.01% | 00.0% | Unchanged |
| Avion Wealth | 72 | $12.0K | 0.00% | −1−1.4% | Reduced |
| First Community Trust NA | 65 | $11.4K | 0.01% | 00.0% | Unchanged |
| JFS Wealth Advisors, LLC | 63 | $11.1K | 0.00% | +58+1,160.0% | Added |
| Private Wealth Asset Management, LLC | 63 | $11.1K | 0.00% | 00.0% | Unchanged |
| Harbor Investment Advisory, LLC | 62 | $10.9K | 0.00% | 00.0% | Unchanged |
| Westfuller Advisors, LLC | 59 | $10.4K | 0.00% | +33+126.9% | Added |
| ORG Partners LLC | 58 | $10.2K | 0.00% | +15+34.9% | Added |
| Asset Dedication, LLC | 57 | $10.0K | 0.00% | 00.0% | Unchanged |
| Salomon & Ludwin, LLC | 57 | $9.95K | 0.00% | 00.0% | Unchanged |
| Global X Japan Co., Ltd. | 55 | $9.68K | 0.00% | +55 | New |
| UMA Financial Services, Inc. | 53 | $9.33K | 0.00% | 00.0% | Unchanged |
| Private Wealth Management Group, LLC | 52 | $9.15K | 0.00% | −2−3.7% | Reduced |
| Quattro Advisors LLC | 52 | $9.15K | 0.01% | +52 | New |
| LRI Investments, LLC | 52 | $9.13K | 0.00% | +46+766.7% | 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 |
| 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 |
| Kilter Group LLC | 49 | $8.62K | 0.00% | +14+40.0% | Added |
| 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 |
| McIlrath & Eck, LLC | 43 | $7.51K | 0.00% | 00.0% | Unchanged |
| DT Investment Partners, LLC | 42 | $7.39K | 0.00% | +42 | New |
| Cornerstone Planning Group LLC | 41 | $7.17K | 0.00% | +39+1,950.0% | Added |
| Anchor Investment Management, LLC | 40 | $7.04K | 0.00% | 00.0% | Unchanged |
| Bank Julius Baer & Co. Ltd, Zurich | 40 | $7.04K | 0.00% | 00.0% | Unchanged |
| Cornerstone Financial Management LLC | 39 | $6.86K | 0.01% | +39 | New |