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 2023
Institutional positions in Biogen Inc. as of Dec 31, 2023. 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
- 1,005
- +56 vs. Q3 2023
- Shares held
- 128.7M
- +4.02M (+3.2%) vs. Q3 2023
- Total value
- $33.3B
- +$1.22B (+3.8%) vs. Q3 2023
- New holders
- 137
- 287 more added
- Sold out
- 81
- 373 more reduced
17 institutions that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2023: 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 2023
Shares, value and share of portfolio for each institution holding Biogen Inc.; share changes are against Q3 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Wedge Capital Management L L P | 127,488 | $33.0M | 0.59% | +9,284+7.9% | Added |
| Prudential Financial Inc | 129,093 | $32.8M | 0.05% | −106,717−45.3% | Reduced |
| Russell Investments Group, Ltd. | 123,270 | $31.9M | 0.06% | −31,318−20.3% | Reduced |
| New York State Common Retirement Fund | 123,203 | $31.9M | 0.04% | −12,777−9.4% | Reduced |
| LSV Asset Management | 117,030 | $30.3M | 0.07% | −227,622−66.0% | Reduced |
| Zimmer Partners, LP | 116,700 | $30.2M | 1.11% | +43,800+60.1% | Added |
| Voya Investment Management LLC | 115,468 | $29.9M | 0.03% | +2,119+1.9% | Added |
| Banco Bilbao Vizcaya Argentaria, S.A. | 114,900 | $29.7M | 0.35% | −33,541−22.6% | Reduced |
| APG Asset Management N.V. | 123,236 | $28.9M | 0.06% | +11,038+9.8% | Added |
| Swedbank AB | 106,156 | $27.5M | 0.04% | −5,498−4.9% | Reduced |
| Canada Pension Plan Investment Board | 105,926 | $27.4M | 0.03% | −139,284−56.8% | Reduced |
| Letko, Brosseau & Associates Inc | 104,414 | $27.0M | 0.49% | −3,805−3.5% | Reduced |
| Sector Gamma AS | 102,234 | $26.5M | 6.42% | −2,052−2.0% | Reduced |
| Federated Hermes, Inc. | 100,148 | $25.9M | 0.06% | −4,320−4.1% | Reduced |
| Putnam Investments LLC | 97,475 | $25.2M | 0.03% | +477+0.5% | Added |
| Rafferty Asset Management, LLC | 95,882 | $24.8M | 0.10% | +13,335+16.2% | Added |
| Treasurer of the State of North Carolina | 95,852 | $24.8M | 0.12% | +3,609+3.9% | Added |
| United Capital Financial Advisers, LLC | 95,270 | $24.7M | 0.20% | −70,369−42.5% | Reduced |
| Schroder Investment Management Group | 92,631 | $24.0M | 0.03% | +37,948+69.4% | Added |
| Toronto Dominion Bank | 92,240 | $23.9M | 0.03% | +1,164+1.3% | Added |
| Squarepoint Ops LLC | 90,302 | $23.4M | 0.10% | +57,514+175.4% | Added |
| Moore Capital Management, LP | 90,000 | $23.3M | 0.56% | +30,000+50.0% | Added |
| SEI Investments Co | 89,614 | $23.2M | 0.04% | −2,182−2.4% | Reduced |
| Skandinaviska Enskilda Banken AB (publ) | 85,695 | $22.2M | 0.13% | +1,714+2.0% | Added |
| Ensign Peak Advisors, Inc | 84,463 | $21.9M | 0.04% | −130,009−60.6% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 84,307 | $21.8M | 0.05% | −12,466−12.9% | Reduced |
| State of New Jersey Common Pension Fund D | 82,025 | $21.2M | 0.07% | 00.0% | Unchanged |
| Chevy Chase Trust Holdings, Inc. | 81,669 | $21.1M | 0.08% | −464−0.6% | Reduced |
| Woodline Partners LP | 80,600 | $20.9M | 0.23% | +80,600 | New |
| Susquehanna International Group, LLP | 78,590 | $20.3M | 0.03% | −33,487−29.9% | Reduced |
| State of Wisconsin Investment Board | 77,562 | $20.1M | 0.06% | −3,729−4.6% | Reduced |
| Vestal Point Capital, LP | 75,000 | $19.4M | 2.06% | +75,000 | New |
| Public Employees Retirement System of Ohio | 71,793 | $18.6M | 0.07% | −1,028−1.4% | Reduced |
| Nomura Asset Management Co Ltd | 71,695 | $18.6M | 0.08% | +1,495+2.1% | Added |
| Brandywine Global Investment Management, LLC | 70,041 | $18.1M | 0.15% | −3,408−4.6% | Reduced |
| Man Group plc | 70,008 | $18.1M | 0.05% | – | – |
| Gilder Gagnon Howe & Co LLC | 68,479 | $17.7M | 0.24% | +901+1.3% | Added |
| Guggenheim Capital LLC | 68,055 | $17.6M | 0.13% | −457−0.7% | Reduced |
| Mn Services Vermogensbeheer B.V. | 67,208 | $17.4M | 0.16% | −2,600−3.7% | Reduced |
| Natixis | 67,073 | $17.4M | 0.13% | +45,538+211.5% | Added |
| Aviva PLC | 66,959 | $17.3M | 0.06% | +17,770+36.1% | Added |
| Fisher Asset Management, LLC | 63,778 | $16.5M | 0.01% | −50,021−44.0% | Reduced |
| State of Tennessee, Treasury Department | 63,396 | $16.4M | 0.06% | +26,350+71.1% | Added |
| Sprucegrove Investment Management Ltd | 62,755 | $16.2M | 0.70% | +800+1.3% | Added |
| Martingale Asset Management L P | 62,227 | $16.1M | 0.33% | −2,025−3.2% | Reduced |
| Asset Management One Co.,Ltd. | 61,257 | $16.0M | 0.06% | −2,386−3.7% | Reduced |
| Mackenzie Financial Corp | 60,626 | $15.7M | 0.02% | +13,796+29.5% | Added |
| Boston Common Asset Management, LLC | 58,711 | $15.2M | 0.35% | −6,047−9.3% | Reduced |
| Rhenman & Partners Asset Management AB | 58,672 | $15.2M | 1.52% | +2,172+3.8% | Added |
| Handelsbanken Fonder AB | 57,533 | $14.9M | 0.07% | −18,231−24.1% | Reduced |
| Royal London Asset Management Ltd | 57,215 | $14.8M | 0.04% | −3,520−5.8% | Reduced |
| Nisa Investment Advisors, LLC | 55,721 | $14.4M | 0.10% | −2,815−4.8% | Reduced |
| DnB Asset Management AS | 55,464 | $14.4M | 0.07% | −14,048−20.2% | Reduced |
| Two Sigma Investments, LP | 54,025 | $14.0M | 0.03% | +34,511+176.9% | Added |
| Capitolis Liquid Global Markets LLC | 54,000 | $14.0M | 0.57% | +54,000 | New |
| American International Group, Inc. | 51,969 | $13.4M | 0.06% | −613−1.2% | Reduced |
| Stifel Financial Corp | 51,648 | $13.4M | 0.02% | −4,079−7.3% | Reduced |
| KBC Group NV | 50,836 | $13.2M | 0.05% | +2,358+4.9% | Added |
| ING Groep NV | 49,492 | $12.8M | 0.10% | +516+1.1% | Added |
| Baird Financial Group, Inc. | 49,269 | $12.7M | 0.03% | +317+0.6% | Added |
| Factory Mutual Insurance Co | 49,200 | $12.7M | 0.16% | 00.0% | Unchanged |
| Illinois Municipal Retirement Fund | 49,117 | $12.7M | 0.21% | −19,274−28.2% | Reduced |
| UniSuper Management Pty Ltd | 48,218 | $12.5M | 0.14% | −854−1.7% | Reduced |
| Edmond de Rothschild Holding S.A. | 48,133 | $12.5M | 0.22% | −120.0% | Reduced |
| Gateway Investment Advisers LLC | 46,939 | $12.1M | 0.14% | −5,897−11.2% | Reduced |
| Sphera Funds Management Ltd. | 46,346 | $12.0M | 2.23% | +20,500+79.3% | Added |
| Tri Locum Partners LP | 45,814 | $11.9M | 5.82% | +45,814 | New |
| Grimes & Company, Inc. | 45,199 | $11.7M | 0.39% | +629+1.4% | Added |
| LPL Financial LLC | 45,070 | $11.7M | 0.01% | −5,740−11.3% | Reduced |
| Caxton Associates LP | 45,000 | $11.6M | 0.60% | +45,000 | New |
| Altrinsic Global Advisors LLC | 44,551 | $11.5M | 0.49% | −2,610−5.5% | Reduced |
| AMF Pensionsforsakring AB | 43,849 | $11.3M | 0.10% | 00.0% | Unchanged |
| Assenagon Asset Management S.A. | 43,216 | $11.2M | 0.03% | −86,525−66.7% | Reduced |
| Truist Financial Corp | 41,915 | $10.8M | 0.02% | −9,681−18.8% | Reduced |
| Atwood & Palmer Inc | 41,596 | $10.8M | 0.87% | −40−0.1% | Reduced |
| Comerica Bank | 41,104 | $10.6M | 0.05% | +3,025+7.9% | Added |
| Two Sigma Advisers, LP | 41,100 | $10.6M | 0.02% | −11,800−22.3% | Reduced |
| Arizona State Retirement System | 40,745 | $10.5M | 0.08% | −225−0.5% | Reduced |
| CIBC Asset Management Inc | 40,486 | $10.5M | 0.04% | +35+0.1% | Added |
| Degroof Petercam Asset Management | 40,300 | $10.4M | 0.14% | +40,300 | New |
| Calamos Advisors LLC | 39,798 | $10.3M | 0.05% | −520−1.3% | Reduced |
| State of Michigan Retirement System | 39,703 | $10.3M | 0.06% | 00.0% | Unchanged |
| CIBC World Markets Corp | 39,452 | $10.2M | 0.06% | +14,799+60.0% | Added |
| Oppenheimer Asset Management Inc. | 38,599 | $9.99M | 0.14% | −2,796−6.8% | Reduced |
| State of Alaska, Department of Revenue | 38,550 | $9.97M | 0.12% | −8,625−18.3% | Reduced |
| AQR Capital Management LLC | 37,140 | $9.61M | 0.02% | −269,539−87.9% | Reduced |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 36,475 | $9.43M | 0.01% | +1,854+5.4% | Added |
| ICICI Prudential Asset Management Co Ltd | 35,989 | $9.31M | 1.08% | +4,693+15.0% | Added |
| MetLife Investment Management | 35,158 | $9.10M | 0.07% | −648−1.8% | Reduced |
| Amalgamated Bank | 34,856 | $9.02M | 0.07% | −2,897−7.7% | Reduced |
| Weiss Multi-Strategy Advisers LLC | 34,696 | $8.98M | 0.23% | +10,444+43.1% | Added |
| Hillman Capital Management, Inc. | 34,476 | $8.92M | 3.08% | +170+0.5% | Added |
| Bokf, NA | 34,354 | $8.89M | 0.17% | −8,607−20.0% | Reduced |
| Capital World Investors | 34,200 | $8.85M | 0.00% | +34,200 | New |
| IFM Investors Pty Ltd | 34,188 | $8.85M | 0.11% | +1,113+3.4% | Added |
| Channing Capital Management, LLC | 34,103 | $8.82M | 0.26% | +4,077+13.6% | Added |
| Teacher Retirement System of Texas | 33,870 | $8.77M | 0.06% | −4,442−11.6% | Reduced |
| Saturn V Capital Management LLC | 32,469 | $8.40M | 3.22% | −32,207−49.8% | Reduced |
| Retirement Systems of Alabama | 31,933 | $8.26M | 0.04% | −137,713−81.2% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 31,731 | $8.21M | 0.06% | +2,612+9.0% | Added |