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 |
|---|---|---|---|---|---|
| Cary Street Partners Financial LLC | 1,355 | $238.5K | 0.01% | 00.0% | Unchanged |
| LGT Fund Management Co Ltd. | 1,349 | $238.0K | 0.02% | +1,349 | New |
| Jackson Thornton Asset Management, LLC | 1,297 | $236.8K | 0.02% | +1,297 | New |
| Ameritas Investment Partners, Inc. | 1,336 | $235.1K | 0.01% | −4,890−78.5% | Reduced |
| Livforsakringsbolaget Skandia, Omsesidigt | 1,330 | $234.1K | 0.01% | 00.0% | Unchanged |
| Hansen & Associates Financial Group, Inc. | 1,226 | $231.7K | 0.13% | +1,226 | New |
| State of Wyoming | 1,293 | $227.6K | 0.02% | −234−15.3% | Reduced |
| Keel Point, LLC | 1,292 | $227.4K | 0.01% | +1,292 | New |
| PDS Planning, Inc | 1,291 | $227.2K | 0.02% | +1,291 | New |
| Riversedge Advisors, LLC | 1,288 | $226.7K | 0.04% | +1,288 | New |
| Mather Group, LLC. | 1,282 | $225.5K | 0.00% | +380+42.1% | Added |
| Johnson Investment Counsel Inc | 1,269 | $223.3K | 0.00% | −160−11.2% | Reduced |
| Miracle Mile Advisors, LLC | 1,268 | $223.1K | 0.00% | +1,268 | New |
| Sagespring Wealth Partners, LLC | 1,254 | $220.7K | 0.00% | +1,254 | New |
| Western Wealth Management, LLC | 1,254 | $220.7K | 0.01% | +1,254 | New |
| SageView Advisory Group, LLC | 1,253 | $220.5K | 0.01% | +1,253 | New |
| MMBG Investment Advisors Co. | 1,248 | $219.6K | 0.02% | +1,248 | New |
| Patton Fund Management, Inc. | 1,244 | $218.9K | 0.03% | −602−32.6% | Reduced |
| Regions Financial Corp | 1,237 | $217.7K | 0.00% | +1,237 | New |
| Advyzon Investment Management, LLC | 1,212 | $213.3K | 0.02% | +1,212 | New |
| Analyst IMS Investment Management Services Ltd. | 1,208 | $213.0K | 0.01% | +1,208 | New |
| IFP Advisors, Inc | 1,206 | $212.2K | 0.00% | +110+10.0% | Added |
| Valeo Financial Advisors, LLC | 1,197 | $210.7K | 0.00% | +1,197 | New |
| Pure Financial Advisors, Inc. | 1,173 | $206.4K | 0.00% | +1,173 | New |
| Basepoint Wealth LLC | 1,164 | $204.9K | 0.12% | +1,164 | New |
| Bridgewater Advisors Inc. | 1,212 | $204.4K | 0.01% | +1,212 | New |
| Howard Capital Management Inc. | 1,161 | $204.3K | 0.00% | +1,161 | New |
| McMillan Office, Inc. | 1,150 | $202.4K | 0.02% | +1,150 | New |
| GTS Securities LLC | 1,145 | $201.5K | 0.01% | −2,195−65.7% | Reduced |
| Boltwood Capital Management | 1,141 | $200.8K | 0.05% | +1,141 | New |
| Versant Capital Management, Inc | 1,065 | $187.4K | 0.02% | +169+18.9% | Added |
| Cladis Investment Advisory, LLC | 1,040 | $183.0K | 0.10% | +1,040 | New |
| Pinnacle Wealth Planning Services, Inc. | 1,020 | $179.5K | 0.02% | +1,020 | New |
| Horizon Bancorp Inc | 982 | $173.0K | 0.08% | −45−4.4% | Reduced |
| Steward Partners Investment Advisory, LLC | 945 | $166.3K | 0.00% | −17−1.8% | Reduced |
| Pin Oak Investment Advisors Inc | 820 | $165.0K | 0.12% | 00.0% | Unchanged |
| Mascoma Wealth Management LLC | 925 | $162.8K | 0.03% | 00.0% | Unchanged |
| Nexus Investment Management ULC | 920 | $161.9K | 0.02% | 00.0% | Unchanged |
| Acima Private Wealth, LLC | 916 | $161.2K | 0.05% | 00.0% | Unchanged |
| Legacy Bridge, LLC | 910 | $160.2K | 0.06% | +30+3.4% | Added |
| Manchester Capital Management LLC | 904 | $159.1K | 0.02% | +26+3.0% | Added |
| Bayforest Capital Ltd | 887 | $156.1K | 0.12% | +458+106.8% | Added |
| Bryn Mawr Trust Co | 867 | $152.6K | 0.00% | 00.0% | Unchanged |
| Eastern Bank | 856 | $150.6K | 0.00% | 00.0% | Unchanged |
| Ronald Blue Trust, Inc. | 840 | $147.8K | 0.00% | −362−30.1% | Reduced |
| Sava Infond d.o.o. | 825 | $145.2K | 0.02% | 00.0% | Unchanged |
| STF Management LP | 804 | $141.5K | 0.13% | −721−47.3% | Reduced |
| Centennial Bank | 800 | $140.8K | 0.06% | 00.0% | Unchanged |
| Whittier Trust Co | 766 | $139.9K | 0.00% | −410−34.9% | Reduced |
| Massmutual Trust Co FSB | 760 | $133.8K | 0.00% | +34+4.7% | Added |
| Jessup Wealth Management, Inc | 727 | $127.9K | 0.04% | +727 | New |
| BNP Paribas | 700 | $123.2K | 0.00% | −104−12.9% | Reduced |
| Larson Financial Group LLC | 675 | $118.8K | 0.00% | +37+5.8% | Added |
| TD Waterhouse Canada Inc. | 628 | $110.5K | 0.00% | −106−14.4% | Reduced |
| Zions Bancorporation, National Association | 622 | $109.5K | 0.01% | +111+21.7% | Added |
| TCTC Holdings, LLC | 600 | $105.6K | 0.00% | 00.0% | Unchanged |
| JNBA Financial Advisors | 596 | $104.9K | 0.01% | −30−4.8% | Reduced |
| Tidemark, LLC | 592 | $104.2K | 0.03% | 00.0% | Unchanged |
| CoreFirst Bank & Trust | 590 | $103.8K | 0.06% | −304−34.0% | Reduced |
| Covestor Ltd | 582 | $103.0K | 0.05% | −443−43.2% | Reduced |
| Deseret Mutual Benefit Administrators | 551 | $97.0K | 0.04% | −378−40.7% | Reduced |
| Hanson & Doremus Investment Management | 525 | $92.0K | 0.01% | 00.0% | Unchanged |
| Rothschild Investment LLC | 513 | $90.2K | 0.00% | +56+12.3% | Added |
| Cromwell Holdings LLC | 511 | $89.9K | 0.05% | 00.0% | Unchanged |
| Bogart Wealth, LLC | 509 | $89.6K | 0.00% | +196+62.6% | Added |
| Curat Global, LLC | 503 | $88.5K | 0.10% | 00.0% | Unchanged |
| Capital Analysts, LLC | 501 | $88.0K | 0.00% | 00.0% | Unchanged |
| Global Retirement Partners, LLC | 499 | $87.8K | 0.00% | +337+208.0% | Added |
| Pflug Koory, LLC | 464 | $81.7K | 0.04% | 00.0% | Unchanged |
| CVA Family Office, LLC | 464 | $81.7K | 0.01% | 00.0% | Unchanged |
| TD Private Client Wealth LLC | 457 | $80.4K | 0.00% | +43+10.4% | Added |
| Paradigm Asset Management Co LLC | 455 | $80.1K | 0.02% | 00.0% | Unchanged |
| Lavaca Capital LLC | 447 | $78.7K | 0.01% | 00.0% | Unchanged |
| Richardson Financial Services Inc. | 437 | $76.9K | 0.05% | 00.0% | Unchanged |
| Onefund, LLC | 411 | $72.3K | 0.04% | +27+7.0% | Added |
| Key Financial Inc | 406 | $71.5K | 0.01% | 00.0% | Unchanged |
| Trust Co of Vermont | 389 | $68.5K | 0.00% | −660−62.9% | Reduced |
| Greykasell Wealth Strategies, Inc. | 385 | $67.8K | 0.03% | 00.0% | Unchanged |
| Caldwell Trust Co | 383 | $67.4K | 0.01% | −18−4.5% | Reduced |
| Armstrong Advisory Group, Inc | 356 | $62.7K | 0.00% | 00.0% | Unchanged |
| ORG Wealth Partners, LLC | 349 | $61.4K | 0.01% | 00.0% | Unchanged |
| Prestige Wealth Management Group LLC | 346 | $60.9K | 0.01% | +282+440.6% | Added |
| Itau Unibanco Holding S.A. | 337 | $59.3K | 0.00% | +66+24.4% | Added |
| Elyxium Wealth, LLC | 330 | $58.1K | 0.02% | +330 | New |
| MCF Advisors LLC | 324 | $57.0K | 0.00% | 00.0% | Unchanged |
| City State Bank | 322 | $56.7K | 0.02% | −370−53.5% | Reduced |
| Sentry Investment Management LLC | 305 | $54.0K | 0.04% | 00.0% | Unchanged |
| Board of the Pension Protection Fund | 300 | $52.8K | 0.05% | −1,100−78.6% | Reduced |
| Costello Asset Management, INC | 300 | $52.8K | 0.02% | 00.0% | Unchanged |
| Newbridge Financial Services Group, Inc. | 300 | $52.8K | 0.01% | 00.0% | Unchanged |
| Vermillion Wealth Management, Inc. | 300 | $52.8K | 0.02% | +300 | New |
| Trust Co | 291 | $51.2K | 0.00% | +128+78.5% | Added |
| Aventura Private Wealth, LLC | 273 | $48.0K | 0.02% | −94−25.6% | Reduced |
| Golden State Wealth Management, LLC | 265 | $46.6K | 0.00% | 00.0% | Unchanged |
| Wilkerson Advisory Group LLC | 259 | $45.6K | 0.02% | +259 | New |
| SRS Capital Advisors, Inc. | 255 | $44.9K | 0.00% | −21,126−98.8% | Reduced |
| WFA of San Diego, LLC | 253 | $44.5K | 0.03% | 00.0% | Unchanged |
| Twin Lakes Capital Management, LLC | 250 | $44.0K | 0.02% | 00.0% | Unchanged |
| Cary Street Partner Investment Advisory LLC | 247 | $43.5K | 0.01% | +138+126.6% | Added |
| GW&K Investment Management, LLC | 239 | $42.0K | 0.00% | 00.0% | Unchanged |