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, Q1 2025
Institutional positions in Biogen Inc. as of Mar 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
- 882
- +16 vs. Q4 2024
- Shares held
- 129.8M
- −2.03M (−1.5%) vs. Q4 2024
- Total value
- $17.7B
- −$2.41B (−11.9%) vs. Q4 2024
- New holders
- 123
- 331 more added
- Sold out
- 107
- 273 more reduced
13 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2024: 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, Q1 2025
Shares, value and share of portfolio for each institution holding Biogen Inc.; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| XTX Topco Ltd | 16,743 | $2.29M | 0.12% | +14,459+633.1% | Added |
| Edgestream Partners, L.P. | 16,850 | $2.31M | 0.08% | −3,285−16.3% | Reduced |
| Mutual of America Capital Management LLC | 17,059 | $2.33M | 0.03% | −436−2.5% | Reduced |
| Entropy Technologies, LP | 17,310 | $2.37M | 0.23% | −17,087−49.7% | Reduced |
| Elo Mutual Pension Insurance Co | 17,508 | $2.40M | 0.05% | +1,408+8.7% | Added |
| Acadian Asset Management LLC | 17,557 | $2.40M | 0.01% | +14,357+448.7% | Added |
| CIBC World Markets Corp | 17,626 | $2.41M | 0.02% | −8,614−32.8% | Reduced |
| UniSuper Management Pty Ltd | 17,671 | $2.42M | 0.02% | +1,186+7.2% | Added |
| Leo Wealth, LLC | 17,835 | $2.44M | 0.35% | +3,903+28.0% | Added |
| Delta Global Management LP | 17,872 | $2.45M | 0.18% | +17,872 | New |
| Synovus Financial Corp | 17,928 | $2.45M | 0.03% | +2,974+19.9% | Added |
| Janney Montgomery Scott LLC | 17,941 | $2.46M | 0.01% | +5,620+45.6% | Added |
| Triglav Skladi, D.O.O. | 18,027 | $2.47M | 0.21% | 00.0% | Unchanged |
| Sumitomo Mitsui DS Asset Management Company, Ltd | 18,158 | $2.48M | 0.03% | +397+2.2% | Added |
| SEI Investments Co | 18,315 | $2.51M | 0.00% | −14,379−44.0% | Reduced |
| iA Global Asset Management Inc. | 18,342 | $2.51M | 0.04% | +2,636+16.8% | Added |
| Louisiana State Employees Retirement System | 18,600 | $2.55M | 0.05% | +200+1.1% | Added |
| Sector Gamma AS | 18,639 | $2.55M | 0.82% | −10,361−35.7% | Reduced |
| Rakuten Investment Management, Inc. | 18,708 | $2.59M | 0.01% | +18,708 | New |
| Wealth Enhancement Advisory Services, LLC | 19,049 | $2.61M | 0.00% | +2,606+15.8% | Added |
| Stifel Financial Corp | 19,076 | $2.61M | 0.00% | +6,320+49.5% | Added |
| Kinneret Advisory, LLC | 19,369 | $2.65M | 0.27% | −66−0.3% | Reduced |
| State of Alaska, Department of Revenue | 19,719 | $2.70M | 0.03% | +540+2.8% | Added |
| Toroso Investments, LLC | 19,864 | $2.72M | 0.02% | +905+4.8% | Added |
| Old North State Wealth Management, LLC | 19,904 | $2.72M | 1.52% | +4,437+28.7% | Added |
| Public Sector Pension Investment Board | 20,107 | $2.75M | 0.01% | +1,745+9.5% | Added |
| Shelton Capital Management | 20,909 | $2.86M | 0.07% | −292−1.4% | Reduced |
| Lombard Odier Asset Management (Switzerland) SA | 21,052 | $2.88M | 0.17% | +21,052 | New |
| Janus Henderson Group PLC | 20,828 | $2.88M | 0.00% | +1,065+5.4% | Added |
| Xponance, Inc. | 21,098 | $2.89M | 0.03% | +363+1.8% | Added |
| Police & Firemen's Retirement System of New Jersey | 21,110 | $2.89M | 0.03% | 00.0% | Unchanged |
| Mirae Asset Securities (USA) Inc. | 21,454 | $2.94M | 0.13% | −18,650−46.5% | Reduced |
| JustInvest LLC | 21,702 | $2.97M | 0.04% | +44+0.2% | Added |
| Comerica Bank | 22,073 | $3.02M | 0.01% | −11,623−34.5% | Reduced |
| New York Life Investment Management LLC | 22,269 | $3.05M | 0.03% | −189−0.8% | Reduced |
| CWA Asset Management Group, LLC | 22,468 | $3.07M | 0.15% | +22,468 | New |
| Bokf, NA | 22,662 | $3.10M | 0.05% | +1,810+8.7% | Added |
| NEOS Investment Management LLC | 22,698 | $3.11M | 0.06% | +5,074+28.8% | Added |
| Yousif Capital Management, LLC | 22,707 | $3.11M | 0.04% | −343−1.5% | Reduced |
| Sphera Funds Management Ltd. | 22,738 | $3.11M | 0.77% | 00.0% | Unchanged |
| Forsta Ap-Fonden | 23,000 | $3.15M | 0.02% | −18,300−44.3% | Reduced |
| Jain Global LLC | 23,376 | $3.20M | 0.07% | +23,376 | New |
| Ilmarinen Mutual Pension Insurance Co | 24,000 | $3.28M | 0.03% | 00.0% | Unchanged |
| Mariner, LLC | 24,005 | $3.29M | 0.01% | +5,039+26.6% | Added |
| Utah Retirement Systems | 24,115 | $3.30M | 0.04% | 00.0% | Unchanged |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 24,221 | $3.31M | 0.04% | −5,600−18.8% | Reduced |
| Headlands Technologies LLC | 24,769 | $3.39M | 0.39% | −3,608−12.7% | Reduced |
| FORA Capital, LLC | 24,991 | $3.42M | 0.35% | +5,505+28.3% | Added |
| The PNC Financial Services Group, Inc. | 25,195 | $3.45M | 0.00% | +21+0.1% | Added |
| US Bancorp | 25,946 | $3.55M | 0.00% | +6,743+35.1% | Added |
| Creative Planning | 26,572 | $3.64M | 0.00% | +2,026+8.3% | Added |
| Wolverine Trading, LLC | 26,284 | $3.64M | 0.12% | −32,929−55.6% | Reduced |
| Profund Advisors LLC | 26,770 | $3.66M | 0.16% | −1,859−6.5% | Reduced |
| DnB Asset Management AS | 26,825 | $3.67M | 0.02% | −20,616−43.5% | Reduced |
| Natixis Advisors, L.P. | 26,907 | $3.68M | 0.01% | +9,946+58.6% | Added |
| Generali Investments CEE, investicni spolecnost, a.s. | 27,060 | $3.70M | 0.35% | 00.0% | Unchanged |
| Commonwealth Equity Services, LLC | 27,480 | $3.76M | 0.01% | +1,188+4.5% | Added |
| Arlington Partners LLC | 27,725 | $3.79M | 1.49% | +27,725 | New |
| CSM Advisors, LLC | 27,859 | $3.81M | 0.21% | −300−1.1% | Reduced |
| British Columbia Investment Management Corp | 27,873 | $3.81M | 0.02% | −15−0.1% | Reduced |
| CWM, LLC | 28,143 | $3.85M | 0.02% | +12,418+79.0% | Added |
| ICICI Prudential Asset Management Co Ltd | 28,229 | $3.86M | 0.50% | −20−0.1% | Reduced |
| Amalgamated Bank | 28,454 | $3.89M | 0.03% | +253+0.9% | Added |
| CI Private Wealth, LLC | 29,791 | $4.08M | 0.01% | +407+1.4% | Added |
| Natixis | 29,905 | $4.08M | 0.02% | +1,513+5.3% | Added |
| PEAK6 LLC | 30,622 | $4.19M | 0.16% | +21,871+249.9% | Added |
| USS Investment Management Ltd | 31,498 | $4.31M | 0.03% | 00.0% | Unchanged |
| Orion Investment Co | 31,652 | $4.33M | 1.78% | −69−0.2% | Reduced |
| China Universal Asset Management Co., Ltd. | 33,060 | $4.52M | 0.42% | −294−0.9% | Reduced |
| Meitav Dash Investments Ltd | 33,400 | $4.57M | 0.08% | −69,438−67.5% | Reduced |
| Kirr Marbach & Co LLC | 33,444 | $4.58M | 1.06% | +3,646+12.2% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 33,474 | $4.58M | 0.03% | +2,490+8.0% | Added |
| Czech National Bank | 33,620 | $4.60M | 0.04% | +2,025+6.4% | Added |
| IFM Investors Pty Ltd | 33,729 | $4.62M | 0.05% | +304+0.9% | Added |
| STRS Ohio | 34,000 | $4.65M | 0.02% | 00.0% | Unchanged |
| North Growth Management Ltd. | 34,000 | $4.65M | 0.98% | +16,000+88.9% | Added |
| KBC Group NV | 34,340 | $4.70M | 0.01% | +850+2.5% | Added |
| NorthCrest Asset Manangement, LLC | 34,532 | $4.73M | 0.14% | +2,126+6.6% | Added |
| Tang Capital Management LLC | 35,000 | $4.79M | 0.26% | 00.0% | Unchanged |
| Aquatic Capital Management LLC | 35,232 | $4.82M | 0.12% | −29,713−45.8% | Reduced |
| GF Fund Management Co. Ltd. | 35,435 | $4.85M | 0.11% | +1,193+3.5% | Added |
| Impax Asset Management Group plc | 35,846 | $4.91M | 0.03% | −884−2.4% | Reduced |
| Calamos Advisors LLC | 36,970 | $5.06M | 0.02% | +412+1.1% | Added |
| Jane Street Group, LLC | 37,254 | $5.10M | 0.01% | −165,384−81.6% | Reduced |
| Altrinsic Global Advisors LLC | 37,698 | $5.16M | 0.25% | −2,026−5.1% | Reduced |
| MetLife Investment Management | 38,002 | $5.20M | 0.03% | −562−1.5% | Reduced |
| Ensign Peak Advisors, Inc | 38,112 | $5.22M | 0.01% | +16,443+75.9% | Added |
| Generali Asset Management SPA SGR | 39,164 | $5.36M | 0.13% | +22,969+141.8% | Added |
| State of Michigan Retirement System | 39,703 | $5.43M | 0.03% | −23,800−37.5% | Reduced |
| Teacher Retirement System of Texas | 39,872 | $5.46M | 0.02% | −12,285−23.6% | Reduced |
| Credit Agricole S A | 40,323 | $5.52M | 0.02% | +3,859+10.6% | Added |
| Cerity Partners LLC | 40,368 | $5.52M | 0.01% | +18,277+82.7% | Added |
| Gateway Investment Advisers LLC | 41,259 | $5.65M | 0.06% | +57+0.1% | Added |
| Raymond James Financial Inc | 41,963 | $5.74M | 0.00% | −100,005−70.4% | Reduced |
| Arizona State Retirement System | 42,114 | $5.76M | 0.04% | +1,344+3.3% | Added |
| Lido Advisors, LLC | 43,045 | $5.89M | 0.03% | +1,447+3.5% | Added |
| Los Angeles Capital Management LLC | 43,310 | $5.93M | 0.03% | +43,310 | New |
| Daiwa Securities Group Inc. | 43,393 | $5.94M | 0.03% | +6,172+16.6% | Added |
| Hillman Capital Management, Inc. | 44,025 | $6.02M | 2.96% | +959+2.2% | Added |
| Corebridge Financial, Inc. | 44,254 | $6.06M | 0.03% | −1,238−2.7% | Reduced |