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; 1,046 institutions reported holding it in 13F filings for Q2 2026, worth $30.7B in total; no superinvestor holds it.
13F holders, Q3 2021
Institutional positions in Biogen Inc. as of Sep 30, 2021. 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
- 1,044
- −50 vs. Q2 2021
- Shares held
- 123.8M
- −1.32M (−1.1%) vs. Q2 2021
- Total value
- $35.1B
- −$8.22B (−19.0%) vs. Q2 2021
- New holders
- 74
- 351 more added
- Sold out
- 124
- 398 more reduced
13 institutions that held it in Q2 2021 haven't filed for Q3 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2021: 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 | 1,046 | $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, Q3 2021
Shares, value and share of portfolio for each institution holding Biogen Inc.; share changes are against Q2 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Primecap Management Co | 16,258,915 | $4.60B | 3.25% | −199,591−1.2% | Reduced |
| BlackRock Inc. | 13,896,253 | $3.93B | 0.11% | +689,662+5.2% | Added |
| Vanguard Group Inc | 11,691,876 | $3.31B | 0.08% | −61,457−0.5% | Reduced |
| State Street Corp | 6,903,536 | $1.95B | 0.10% | +223,496+3.3% | Added |
| JPMorgan Chase & Co | 5,605,297 | $1.59B | 0.21% | +250,531+4.7% | Added |
| Wellington Management Group LLP | 5,577,720 | $1.58B | 0.27% | −24,141−0.4% | Reduced |
| Clearbridge Investments, LLC | 3,363,927 | $952.0M | 0.68% | −201,185−5.6% | Reduced |
| Geode Capital Management, LLC | 2,775,266 | $783.5M | 0.11% | −118,484−4.1% | Reduced |
| Price T Rowe Associates Inc | 1,784,136 | $504.9M | 0.05% | +171,573+10.6% | Added |
| Northern Trust Corp | 1,758,890 | $497.7M | 0.09% | −308,649−14.9% | Reduced |
| Norges Bank | 1,622,011 | $459.0M | 0.10% | −199,140−10.9% | Reduced |
| Bank of New York Mellon Corp | 1,609,799 | $455.6M | 0.09% | −156,033−8.8% | Reduced |
| Legal & General Group Plc | 1,406,196 | $397.9M | 0.13% | +20,504+1.5% | Added |
| Deutsche Bank AG | 1,381,482 | $390.9M | 0.19% | −33,712−2.4% | Reduced |
| UBS Asset Management Americas Inc | 1,244,986 | $352.3M | 0.15% | +106,513+9.4% | Added |
| FMR LLC | 1,177,553 | $333.2M | 0.03% | −174,665−12.9% | Reduced |
| American Century Companies Inc | 1,138,819 | $322.3M | 0.22% | −103,224−8.3% | Reduced |
| Dimensional Fund Advisors LP | 1,130,190 | $319.9M | 0.10% | −57,498−4.8% | Reduced |
| Invesco Ltd. | 990,579 | $280.3M | 0.07% | −52,879−5.1% | Reduced |
| Renaissance Technologies LLC | 981,707 | $277.8M | 0.36% | −348,296−26.2% | Reduced |
| Amundi | 855,003 | $242.0M | 0.17% | +235,305+38.0% | Added |
| Goldman Sachs Group Inc | 799,928 | $226.4M | 0.06% | −41,150−4.9% | Reduced |
| Morgan Stanley | 753,715 | $213.3M | 0.03% | +51,540+7.3% | Added |
| Assenagon Asset Management S.A. | 751,389 | $212.6M | 0.88% | +399,310+113.4% | Added |
| Bank of America Corp | 742,849 | $210.2M | 0.02% | +50,598+7.3% | Added |
| Charles Schwab Investment Management Inc | 731,198 | $206.9M | 0.07% | +7,369+1.0% | Added |
| Pictet Asset Management SA | 676,762 | $191.5M | 0.21% | +676,762 | New |
| Sarissa Capital Management LP | 643,000 | $182.0M | 14.28% | 00.0% | Unchanged |
| Van Eck Associates Corp | 640,075 | $181.1M | 0.46% | +43,528+7.3% | Added |
| Parametric Portfolio Associates LLC | 598,531 | $169.4M | 0.10% | −86,433−12.6% | Reduced |
| Swiss National Bank | 595,272 | $168.5M | 0.11% | −25,800−4.2% | Reduced |
| Wells Fargo & Company | 573,576 | $162.3M | 0.04% | +23,940+4.4% | Added |
| Nuveen Asset Management, LLC | 570,604 | $161.5M | 0.05% | −279,302−32.9% | Reduced |
| Beutel, Goodman & Co Ltd. | 550,016 | $155.6M | 0.95% | +415,883+310.1% | Added |
| Bellevue Group AG | 527,000 | $149.1M | 1.51% | −1,100−0.2% | Reduced |
| Franklin Resources Inc | 486,295 | $137.6M | 0.05% | +14,995+3.2% | Added |
| California Public Employees Retirement System | 468,268 | $132.5M | 0.10% | −5,238−1.1% | Reduced |
| HealthCor Management, L.P. | 466,830 | $132.1M | 5.75% | +127,530+37.6% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 465,619 | $131.8M | 0.08% | −29,106−5.9% | Reduced |
| Nordea Investment Management AB | 456,986 | $131.0M | 0.17% | +11,987+2.7% | Added |
| Parnassus Investments | 452,053 | $127.9M | 0.27% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 391,066 | $110.7M | 0.14% | +13,756+3.6% | Added |
| Barclays PLC | 384,914 | $108.9M | 0.08% | +56,681+17.3% | Added |
| Ameriprise Financial Inc | 380,636 | $107.7M | 0.03% | +191,227+101.0% | Added |
| D. E. Shaw & Co., Inc. | 376,491 | $106.5M | 0.14% | −413,202−52.3% | Reduced |
| Armistice Capital, LLC | 372,000 | $105.3M | 2.60% | +4,000+1.1% | Added |
| Palo Alto Investors LP | 361,600 | $102.3M | 6.18% | 00.0% | Unchanged |
| LSV Asset Management | 361,602 | $102.3M | 0.18% | +1,432+0.4% | Added |
| AQR Capital Management LLC | 350,860 | $99.3M | 0.18% | −163,602−31.8% | Reduced |
| Citadel Advisors LLC | 336,356 | $95.2M | 0.11% | −220,533−39.6% | Reduced |
| Boston Partners | 332,589 | $94.1M | 0.12% | +11,506+3.6% | Added |
| First Trust Advisors LP | 328,808 | $93.0M | 0.10% | −103,298−23.9% | Reduced |
| Bank of Montreal | 287,699 | $91.7M | 0.05% | +95,105+49.4% | Added |
| UBS Group AG | 313,963 | $88.8M | 0.04% | +74,754+31.3% | Added |
| Allianz Asset Management GmbH | 312,024 | $88.3M | 0.07% | +109,683+54.2% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 302,980 | $85.7M | 0.32% | +41,710+16.0% | Added |
| Westfield Capital Management Co LP | 296,922 | $84.0M | 0.51% | +105,080+54.8% | Added |
| Credit Suisse AG | 291,975 | $82.6M | 0.07% | +20,909+7.7% | Added |
| Royal Bank of Canada | 291,019 | $82.4M | 0.02% | −96,849−25.0% | Reduced |
| New York State Common Retirement Fund | 277,713 | $78.6M | 0.08% | −11,076−3.8% | Reduced |
| Arrowstreet Capital, Limited Partnership | 274,119 | $77.6M | 0.10% | +87,302+46.7% | Added |
| Candriam Luxembourg S.C.A. | 272,643 | $77.2M | 0.52% | −2,397−0.9% | Reduced |
| Millennium Management LLC | 271,819 | $76.9M | 0.10% | −35,210−11.5% | Reduced |
| Citigroup Inc | 270,673 | $76.6M | 0.08% | −4,862−1.8% | Reduced |
| Rhumbline Advisers | 269,433 | $76.2M | 0.10% | −4,906−1.8% | Reduced |
| Canada Pension Plan Investment Board | 268,815 | $76.1M | 0.09% | +27,525+11.4% | Added |
| California State Teachers Retirement System | 266,379 | $75.4M | 0.10% | +2,137+0.8% | Added |
| Railway Pension Investments Ltd | 255,622 | $72.3M | 0.59% | +10,600+4.3% | Added |
| AustralianSuper Pty Ltd | 254,997 | $72.2M | 0.46% | −17,516−6.4% | Reduced |
| National Pension Service | 247,492 | $70.0M | 0.13% | −6,130−2.4% | Reduced |
| Great West Life Assurance Co | 241,774 | $68.9M | 0.16% | −161−0.1% | Reduced |
| Saratoga Research & Investment Management | 240,324 | $68.0M | 3.14% | −729−0.3% | Reduced |
| Alliancebernstein L.P. | 237,636 | $67.2M | 0.03% | +7,277+3.2% | Added |
| Envestnet Asset Management Inc | 234,349 | $66.3M | 0.04% | +16,790+7.7% | Added |
| Erste Asset Management GmbH | 233,650 | $66.3M | 1.31% | +11,315+5.1% | Added |
| OrbiMed Advisors LLC | 234,200 | $66.3M | 0.74% | +166,800+247.5% | Added |
| Sprucegrove Investment Management Ltd | 234,000 | $66.2M | 1.63% | +33,600+16.8% | Added |
| Tekla Capital Management LLC | 233,853 | $66.2M | 2.13% | +24,729+11.8% | Added |
| Thrivent Financial for Lutherans | 227,616 | $64.4M | 0.13% | +37,331+19.6% | Added |
| Caption Management, LLC | 223,300 | $63.2M | 4.15% | +53,996+31.9% | Added |
| ProShare Advisors LLC | 213,991 | $60.6M | 0.17% | +20,728+10.7% | Added |
| Employees Provident Fund Board | 212,569 | $60.2M | 0.99% | 00.0% | Unchanged |
| Swedbank AB | 210,864 | $59.7M | 0.11% | +2,584+1.2% | Added |
| SEI Investments Co | 209,948 | $59.5M | 0.12% | +126,096+150.4% | Added |
| AXA S.A. | 209,687 | $59.3M | 0.17% | +15,754+8.1% | Added |
| Massachusetts Financial Services Co | 203,982 | $57.7M | 0.02% | +104,969+106.0% | Added |
| State Board of Administration of Florida Retirement System | 202,466 | $57.3M | 0.11% | −8,200−3.9% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 185,863 | $52.6M | 0.11% | −14,872−7.4% | Reduced |
| Cambiar Investors LLC | 185,118 | $52.4M | 1.79% | +3,097+1.7% | Added |
| New York State Teachers Retirement System | 183,123 | $51.8M | 0.11% | −6,285−3.3% | Reduced |
| Principal Financial Group Inc | 179,514 | $50.8M | 0.03% | +561+0.3% | Added |
| Man Group plc | 176,439 | $49.9M | 0.18% | +140,104+385.6% | Added |
| Robeco Institutional Asset Management B.V. | 172,161 | $48.7M | 0.11% | +7,716+4.7% | Added |
| Farallon Capital Management, L.L.C. | 170,859 | $48.4M | 0.26% | +61,859+56.8% | Added |
| Prudential Financial Inc | 157,737 | $44.6M | 0.06% | −72,264−31.4% | Reduced |
| United Capital Financial Advisers, LLC | 156,641 | $44.3M | 0.22% | +3,248+2.1% | Added |
| HSBC Holdings PLC | 155,827 | $44.3M | 0.05% | −18,240−10.5% | Reduced |
| State of Wisconsin Investment Board | 155,112 | $43.9M | 0.09% | −136,451−46.8% | Reduced |
| Brandywine Global Investment Management, LLC | 153,008 | $43.3M | 0.33% | +103,159+206.9% | Added |
| Putnam Investments LLC | 151,661 | $42.9M | 0.07% | −1,081−0.7% | Reduced |