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 |
|---|---|---|---|---|---|
| Impax Asset Management Group plc | 35,846 | $4.91M | 0.03% | −884−2.4% | Reduced |
| GF Fund Management Co. Ltd. | 35,435 | $4.85M | 0.11% | +1,193+3.5% | Added |
| Aquatic Capital Management LLC | 35,232 | $4.82M | 0.12% | −29,713−45.8% | Reduced |
| Tang Capital Management LLC | 35,000 | $4.79M | 0.26% | 00.0% | Unchanged |
| NorthCrest Asset Manangement, LLC | 34,532 | $4.73M | 0.14% | +2,126+6.6% | Added |
| KBC Group NV | 34,340 | $4.70M | 0.01% | +850+2.5% | Added |
| North Growth Management Ltd. | 34,000 | $4.65M | 0.98% | +16,000+88.9% | Added |
| STRS Ohio | 34,000 | $4.65M | 0.02% | 00.0% | Unchanged |
| IFM Investors Pty Ltd | 33,729 | $4.62M | 0.05% | +304+0.9% | Added |
| Czech National Bank | 33,620 | $4.60M | 0.04% | +2,025+6.4% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 33,474 | $4.58M | 0.03% | +2,490+8.0% | Added |
| Kirr Marbach & Co LLC | 33,444 | $4.58M | 1.06% | +3,646+12.2% | Added |
| Meitav Dash Investments Ltd | 33,400 | $4.57M | 0.08% | −69,438−67.5% | Reduced |
| China Universal Asset Management Co., Ltd. | 33,060 | $4.52M | 0.42% | −294−0.9% | Reduced |
| Orion Investment Co | 31,652 | $4.33M | 1.78% | −69−0.2% | Reduced |
| USS Investment Management Ltd | 31,498 | $4.31M | 0.03% | 00.0% | Unchanged |
| PEAK6 LLC | 30,622 | $4.19M | 0.16% | +21,871+249.9% | Added |
| Natixis | 29,905 | $4.08M | 0.02% | +1,513+5.3% | Added |
| CI Private Wealth, LLC | 29,791 | $4.08M | 0.01% | +407+1.4% | Added |
| Amalgamated Bank | 28,454 | $3.89M | 0.03% | +253+0.9% | Added |
| ICICI Prudential Asset Management Co Ltd | 28,229 | $3.86M | 0.50% | −20−0.1% | Reduced |
| CWM, LLC | 28,143 | $3.85M | 0.02% | +12,418+79.0% | Added |
| British Columbia Investment Management Corp | 27,873 | $3.81M | 0.02% | −15−0.1% | Reduced |
| CSM Advisors, LLC | 27,859 | $3.81M | 0.21% | −300−1.1% | Reduced |
| Arlington Partners LLC | 27,725 | $3.79M | 1.49% | +27,725 | New |
| Commonwealth Equity Services, LLC | 27,480 | $3.76M | 0.01% | +1,188+4.5% | Added |
| Generali Investments CEE, investicni spolecnost, a.s. | 27,060 | $3.70M | 0.35% | 00.0% | Unchanged |
| Natixis Advisors, L.P. | 26,907 | $3.68M | 0.01% | +9,946+58.6% | Added |
| DnB Asset Management AS | 26,825 | $3.67M | 0.02% | −20,616−43.5% | Reduced |
| Profund Advisors LLC | 26,770 | $3.66M | 0.16% | −1,859−6.5% | Reduced |
| Wolverine Trading, LLC | 26,284 | $3.64M | 0.12% | −32,929−55.6% | Reduced |
| Creative Planning | 26,572 | $3.64M | 0.00% | +2,026+8.3% | Added |
| US Bancorp | 25,946 | $3.55M | 0.00% | +6,743+35.1% | Added |
| The PNC Financial Services Group, Inc. | 25,195 | $3.45M | 0.00% | +21+0.1% | Added |
| FORA Capital, LLC | 24,991 | $3.42M | 0.35% | +5,505+28.3% | Added |
| Headlands Technologies LLC | 24,769 | $3.39M | 0.39% | −3,608−12.7% | Reduced |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 24,221 | $3.31M | 0.04% | −5,600−18.8% | Reduced |
| Utah Retirement Systems | 24,115 | $3.30M | 0.04% | 00.0% | Unchanged |
| Mariner, LLC | 24,005 | $3.29M | 0.01% | +5,039+26.6% | Added |
| Ilmarinen Mutual Pension Insurance Co | 24,000 | $3.28M | 0.03% | 00.0% | Unchanged |
| Jain Global LLC | 23,376 | $3.20M | 0.07% | +23,376 | New |
| Forsta Ap-Fonden | 23,000 | $3.15M | 0.02% | −18,300−44.3% | Reduced |
| Sphera Funds Management Ltd. | 22,738 | $3.11M | 0.77% | 00.0% | Unchanged |
| Yousif Capital Management, LLC | 22,707 | $3.11M | 0.04% | −343−1.5% | Reduced |
| NEOS Investment Management LLC | 22,698 | $3.11M | 0.06% | +5,074+28.8% | Added |
| Bokf, NA | 22,662 | $3.10M | 0.05% | +1,810+8.7% | Added |
| CWA Asset Management Group, LLC | 22,468 | $3.07M | 0.15% | +22,468 | New |
| New York Life Investment Management LLC | 22,269 | $3.05M | 0.03% | −189−0.8% | Reduced |
| Comerica Bank | 22,073 | $3.02M | 0.01% | −11,623−34.5% | Reduced |
| JustInvest LLC | 21,702 | $2.97M | 0.04% | +44+0.2% | Added |
| Mirae Asset Securities (USA) Inc. | 21,454 | $2.94M | 0.13% | −18,650−46.5% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 21,110 | $2.89M | 0.03% | 00.0% | Unchanged |
| Xponance, Inc. | 21,098 | $2.89M | 0.03% | +363+1.8% | Added |
| Janus Henderson Group PLC | 20,828 | $2.88M | 0.00% | +1,065+5.4% | Added |
| Lombard Odier Asset Management (Switzerland) SA | 21,052 | $2.88M | 0.17% | +21,052 | New |
| Shelton Capital Management | 20,909 | $2.86M | 0.07% | −292−1.4% | Reduced |
| Public Sector Pension Investment Board | 20,107 | $2.75M | 0.01% | +1,745+9.5% | Added |
| Old North State Wealth Management, LLC | 19,904 | $2.72M | 1.52% | +4,437+28.7% | Added |
| Toroso Investments, LLC | 19,864 | $2.72M | 0.02% | +905+4.8% | Added |
| State of Alaska, Department of Revenue | 19,719 | $2.70M | 0.03% | +540+2.8% | Added |
| Kinneret Advisory, LLC | 19,369 | $2.65M | 0.27% | −66−0.3% | Reduced |
| Stifel Financial Corp | 19,076 | $2.61M | 0.00% | +6,320+49.5% | Added |
| Wealth Enhancement Advisory Services, LLC | 19,049 | $2.61M | 0.00% | +2,606+15.8% | Added |
| Rakuten Investment Management, Inc. | 18,708 | $2.59M | 0.01% | +18,708 | New |
| Sector Gamma AS | 18,639 | $2.55M | 0.82% | −10,361−35.7% | Reduced |
| Louisiana State Employees Retirement System | 18,600 | $2.55M | 0.05% | +200+1.1% | Added |
| iA Global Asset Management Inc. | 18,342 | $2.51M | 0.04% | +2,636+16.8% | Added |
| SEI Investments Co | 18,315 | $2.51M | 0.00% | −14,379−44.0% | Reduced |
| Sumitomo Mitsui DS Asset Management Company, Ltd | 18,158 | $2.48M | 0.03% | +397+2.2% | Added |
| Triglav Skladi, D.O.O. | 18,027 | $2.47M | 0.21% | 00.0% | Unchanged |
| Janney Montgomery Scott LLC | 17,941 | $2.46M | 0.01% | +5,620+45.6% | Added |
| Synovus Financial Corp | 17,928 | $2.45M | 0.03% | +2,974+19.9% | Added |
| Delta Global Management LP | 17,872 | $2.45M | 0.18% | +17,872 | New |
| Leo Wealth, LLC | 17,835 | $2.44M | 0.35% | +3,903+28.0% | Added |
| UniSuper Management Pty Ltd | 17,671 | $2.42M | 0.02% | +1,186+7.2% | Added |
| CIBC World Markets Corp | 17,626 | $2.41M | 0.02% | −8,614−32.8% | Reduced |
| Acadian Asset Management LLC | 17,557 | $2.40M | 0.01% | +14,357+448.7% | Added |
| Elo Mutual Pension Insurance Co | 17,508 | $2.40M | 0.05% | +1,408+8.7% | Added |
| Entropy Technologies, LP | 17,310 | $2.37M | 0.23% | −17,087−49.7% | Reduced |
| Mutual of America Capital Management LLC | 17,059 | $2.33M | 0.03% | −436−2.5% | Reduced |
| Edgestream Partners, L.P. | 16,850 | $2.31M | 0.08% | −3,285−16.3% | Reduced |
| XTX Topco Ltd | 16,743 | $2.29M | 0.12% | +14,459+633.1% | Added |
| Quantinno Capital Management LP | 16,726 | $2.29M | 0.01% | +10,442+166.2% | Added |
| Bank of Nova Scotia | 16,311 | $2.23M | 0.01% | −4,241−20.6% | Reduced |
| Level Four Advisory Services, LLC | 16,154 | $2.21M | 0.09% | +8,685+116.3% | Added |
| Beacon Investment Advisory Services, Inc. | 16,080 | $2.20M | 0.10% | −3,529−18.0% | Reduced |
| Vontobel Holding Ltd. | 15,939 | $2.18M | 0.01% | +677+4.4% | Added |
| LMR Partners LLP | 15,802 | $2.16M | 0.04% | +1,302+9.0% | Added |
| OP Asset Management Ltd | 15,435 | $2.11M | 0.04% | +15,435 | New |
| Farmers Trust Co | 14,861 | $2.03M | 0.38% | +2,012+15.7% | Added |
| Tower Research Capital LLC (TRC) | 8,225 | $2.02M | 0.06% | −1,894−18.7% | Reduced |
| Ostrum Asset Management | 14,708 | $2.01M | 0.11% | −173−1.2% | Reduced |
| Avanza Fonder AB | 15,287 | $2.01M | 0.07% | −249−1.6% | Reduced |
| Thrivent Financial for Lutherans | 14,651 | $2.00M | 0.00% | −1,185−7.5% | Reduced |
| Stoneridge Investment Partners LLC | 14,599 | $2.00M | 1.69% | −19,200−56.8% | Reduced |
| Qsemble Capital Management, LP | 14,467 | $1.98M | 0.21% | +11,406+372.6% | Added |
| Aigen Investment Management, LP | 14,365 | $1.97M | 0.31% | +14,365 | New |
| Inspire Trust Co, N.A. | 14,300 | $1.96M | 0.47% | +2,000+16.3% | Added |
| Kovitz Investment Group Partners, LLC | 14,216 | $1.95M | 0.01% | +10,318+264.7% | Added |
| Quantbot Technologies LP | 14,137 | $1.93M | 0.06% | +11,665+471.9% | Added |