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, 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 | 1,047 | $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, 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 |
|---|---|---|---|---|---|
| Treasurer of the State of North Carolina | 90,015 | $25.5M | 0.15% | −2,925−3.1% | Reduced |
| State of New Jersey Common Pension Fund D | 90,123 | $25.5M | 0.08% | −2,674−2.9% | Reduced |
| Chevy Chase Trust Holdings, Inc. | 92,231 | $26.1M | 0.09% | −4,432−4.6% | Reduced |
| Grantham, Mayo, Van Otterloo & Co. LLC | 93,400 | $26.4M | 0.13% | +14,400+18.2% | Added |
| Jane Street Group, LLC | 94,170 | $26.6M | 0.07% | +11,484+13.9% | Added |
| Public Employees Retirement System of Ohio | 94,787 | $26.8M | 0.10% | −1,433−1.5% | Reduced |
| AMF Pensionsforsakring AB | 95,283 | $27.0M | 0.20% | +13,131+16.0% | Added |
| BNP Paribas Arbitrage, SA | 98,160 | $27.8M | 0.07% | −44,389−31.1% | Reduced |
| Boston Common Asset Management, LLC | 100,260 | $28.4M | 1.23% | −270.0% | Reduced |
| Krensavage Asset Management, LLC | 103,202 | $29.2M | 9.16% | +5,679+5.8% | Added |
| Storebrand Asset Management AS | 103,751 | $29.4M | 0.14% | −4,750−4.4% | Reduced |
| Wedge Capital Management L L P | 105,756 | $29.9M | 0.39% | +105,756 | New |
| Russell Investments Group, Ltd. | 106,450 | $30.2M | 0.05% | −13,807−11.5% | Reduced |
| PEAK6 Investments LLC | 107,419 | $30.4M | 0.61% | −37,407−25.8% | Reduced |
| Royal London Asset Management Ltd | 107,506 | $30.4M | 0.12% | −3,472−3.1% | Reduced |
| Fisher Asset Management, LLC | 108,489 | $30.7M | 0.02% | +3,414+3.2% | Added |
| Toronto Dominion Bank | 108,524 | $30.7M | 0.05% | +21,991+25.4% | Added |
| Adage Capital Partners GP, L.L.C. | 113,099 | $32.0M | 0.06% | −22,300−16.5% | Reduced |
| Mn Services Vermogensbeheer B.V. | 113,408 | $32.1M | 0.21% | +1,700+1.5% | Added |
| State of Tennessee, Treasury Department | 116,739 | $33.0M | 0.13% | +89,922+335.3% | Added |
| Taconic Capital Advisors LP | 117,000 | $33.1M | 1.24% | +97,000+485.0% | Added |
| Ensign Peak Advisors, Inc | 118,756 | $33.6M | 0.07% | −24,794−17.3% | Reduced |
| Korea Investment CORP | 119,714 | $33.9M | 0.10% | −22,257−15.7% | Reduced |
| Letko, Brosseau & Associates Inc | 119,996 | $34.0M | 0.49% | −4,640−3.7% | Reduced |
| Skandinaviska Enskilda Banken AB (publ) | 121,749 | $34.4M | 0.19% | −69,298−36.3% | Reduced |
| Samlyn Capital, LLC | 122,335 | $34.6M | 0.51% | −253,896−67.5% | Reduced |
| Polar Capital Holdings Plc | 125,000 | $35.4M | 0.19% | 00.0% | Unchanged |
| DekaBank Deutsche Girozentrale | 124,601 | $35.5M | 0.10% | −67,344−35.1% | Reduced |
| Altrinsic Global Advisors LLC | 126,021 | $35.7M | 1.07% | +1,168+0.9% | Added |
| Victory Capital Management Inc | 128,283 | $36.3M | 0.04% | −34,982−21.4% | Reduced |
| Tobam | 129,769 | $36.7M | 1.56% | −11,475−8.1% | Reduced |
| Manufacturers Life Insurance Company, The | 133,516 | $37.8M | 0.03% | −13,519−9.2% | Reduced |
| Caisse de Depot Et Placement du Quebec | 136,477 | $38.6M | 0.08% | +51,813+61.2% | Added |
| Janus Henderson Group PLC | 136,852 | $38.7M | 0.02% | +47,905+53.9% | Added |
| Two Sigma Investments, LP | 139,630 | $39.5M | 0.11% | +116,441+502.1% | Added |
| Eaton Vance Management | 141,449 | $39.5M | 0.05% | −22,065−13.5% | Reduced |
| State of Michigan Retirement System | 145,183 | $41.1M | 0.23% | −500−0.3% | Reduced |
| Glenmede Trust Co NA | 146,459 | $41.4M | 0.21% | +385+0.3% | Added |
| TD Asset Management Inc | 146,929 | $41.6M | 0.04% | +25,319+20.8% | Added |
| Rhenman & Partners Asset Management AB | 150,000 | $42.4M | 2.98% | +60,000+66.7% | Added |
| Raymond James & Associates | 150,982 | $42.7M | 0.04% | +13,546+9.9% | Added |
| Putnam Investments LLC | 151,661 | $42.9M | 0.07% | −1,081−0.7% | Reduced |
| Brandywine Global Investment Management, LLC | 153,008 | $43.3M | 0.33% | +103,159+206.9% | Added |
| State of Wisconsin Investment Board | 155,112 | $43.9M | 0.09% | −136,451−46.8% | Reduced |
| HSBC Holdings PLC | 155,827 | $44.3M | 0.05% | −18,240−10.5% | Reduced |
| United Capital Financial Advisers, LLC | 156,641 | $44.3M | 0.22% | +3,248+2.1% | Added |
| Prudential Financial Inc | 157,737 | $44.6M | 0.06% | −72,264−31.4% | Reduced |
| Farallon Capital Management, L.L.C. | 170,859 | $48.4M | 0.26% | +61,859+56.8% | Added |
| Robeco Institutional Asset Management B.V. | 172,161 | $48.7M | 0.11% | +7,716+4.7% | Added |
| Man Group plc | 176,439 | $49.9M | 0.18% | +140,104+385.6% | Added |
| Principal Financial Group Inc | 179,514 | $50.8M | 0.03% | +561+0.3% | Added |
| New York State Teachers Retirement System | 183,123 | $51.8M | 0.11% | −6,285−3.3% | Reduced |
| Cambiar Investors LLC | 185,118 | $52.4M | 1.79% | +3,097+1.7% | Added |
| Mitsubishi UFJ Trust & Banking Corp | 185,863 | $52.6M | 0.11% | −14,872−7.4% | Reduced |
| State Board of Administration of Florida Retirement System | 202,466 | $57.3M | 0.11% | −8,200−3.9% | Reduced |
| Massachusetts Financial Services Co | 203,982 | $57.7M | 0.02% | +104,969+106.0% | Added |
| AXA S.A. | 209,687 | $59.3M | 0.17% | +15,754+8.1% | Added |
| SEI Investments Co | 209,948 | $59.5M | 0.12% | +126,096+150.4% | Added |
| Swedbank AB | 210,864 | $59.7M | 0.11% | +2,584+1.2% | Added |
| Employees Provident Fund Board | 212,569 | $60.2M | 0.99% | 00.0% | Unchanged |
| ProShare Advisors LLC | 213,991 | $60.6M | 0.17% | +20,728+10.7% | Added |
| Caption Management, LLC | 223,300 | $63.2M | 4.15% | +53,996+31.9% | Added |
| Thrivent Financial for Lutherans | 227,616 | $64.4M | 0.13% | +37,331+19.6% | Added |
| Tekla Capital Management LLC | 233,853 | $66.2M | 2.13% | +24,729+11.8% | Added |
| Sprucegrove Investment Management Ltd | 234,000 | $66.2M | 1.63% | +33,600+16.8% | Added |
| OrbiMed Advisors LLC | 234,200 | $66.3M | 0.74% | +166,800+247.5% | Added |
| Erste Asset Management GmbH | 233,650 | $66.3M | 1.31% | +11,315+5.1% | Added |
| Envestnet Asset Management Inc | 234,349 | $66.3M | 0.04% | +16,790+7.7% | Added |
| Alliancebernstein L.P. | 237,636 | $67.2M | 0.03% | +7,277+3.2% | Added |
| Saratoga Research & Investment Management | 240,324 | $68.0M | 3.14% | −729−0.3% | Reduced |
| Great West Life Assurance Co | 241,774 | $68.9M | 0.16% | −161−0.1% | Reduced |
| National Pension Service | 247,492 | $70.0M | 0.13% | −6,130−2.4% | Reduced |
| AustralianSuper Pty Ltd | 254,997 | $72.2M | 0.46% | −17,516−6.4% | Reduced |
| Railway Pension Investments Ltd | 255,622 | $72.3M | 0.59% | +10,600+4.3% | Added |
| California State Teachers Retirement System | 266,379 | $75.4M | 0.10% | +2,137+0.8% | Added |
| Canada Pension Plan Investment Board | 268,815 | $76.1M | 0.09% | +27,525+11.4% | Added |
| Rhumbline Advisers | 269,433 | $76.2M | 0.10% | −4,906−1.8% | Reduced |
| Citigroup Inc | 270,673 | $76.6M | 0.08% | −4,862−1.8% | Reduced |
| Millennium Management LLC | 271,819 | $76.9M | 0.10% | −35,210−11.5% | Reduced |
| Candriam Luxembourg S.C.A. | 272,643 | $77.2M | 0.52% | −2,397−0.9% | Reduced |
| Arrowstreet Capital, Limited Partnership | 274,119 | $77.6M | 0.10% | +87,302+46.7% | Added |
| New York State Common Retirement Fund | 277,713 | $78.6M | 0.08% | −11,076−3.8% | Reduced |
| Royal Bank of Canada | 291,019 | $82.4M | 0.02% | −96,849−25.0% | Reduced |
| Credit Suisse AG | 291,975 | $82.6M | 0.07% | +20,909+7.7% | Added |
| Westfield Capital Management Co LP | 296,922 | $84.0M | 0.51% | +105,080+54.8% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 302,980 | $85.7M | 0.32% | +41,710+16.0% | Added |
| Allianz Asset Management GmbH | 312,024 | $88.3M | 0.07% | +109,683+54.2% | Added |
| UBS Group AG | 313,963 | $88.8M | 0.04% | +74,754+31.3% | Added |
| Bank of Montreal | 287,699 | $91.7M | 0.05% | +95,105+49.4% | Added |
| First Trust Advisors LP | 328,808 | $93.0M | 0.10% | −103,298−23.9% | Reduced |
| Boston Partners | 332,589 | $94.1M | 0.12% | +11,506+3.6% | Added |
| Citadel Advisors LLC | 336,356 | $95.2M | 0.11% | −220,533−39.6% | Reduced |
| AQR Capital Management LLC | 350,860 | $99.3M | 0.18% | −163,602−31.8% | Reduced |
| 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 |
| Armistice Capital, LLC | 372,000 | $105.3M | 2.60% | +4,000+1.1% | Added |
| D. E. Shaw & Co., Inc. | 376,491 | $106.5M | 0.14% | −413,202−52.3% | Reduced |
| Ameriprise Financial Inc | 380,636 | $107.7M | 0.03% | +191,227+101.0% | Added |
| Barclays PLC | 384,914 | $108.9M | 0.08% | +56,681+17.3% | Added |
| Susquehanna International Group, LLP | 391,066 | $110.7M | 0.14% | +13,756+3.6% | Added |