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, 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 | 1,046 | $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, 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 |
|---|---|---|---|---|---|
| Vanguard Group Inc | 17,032,839 | $2.33B | 0.04% | +283,964+1.7% | Added |
| Primecap Management Co | 15,943,259 | $2.18B | 1.80% | −102,950−0.6% | Reduced |
| BlackRock, Inc. | 15,211,036 | $2.08B | 0.04% | −262,674−1.7% | Reduced |
| State Street Corp | 7,396,910 | $1.01B | 0.04% | −1,3380.0% | Reduced |
| Wellington Management Group LLP | 4,672,437 | $639.4M | 0.12% | −258,286−5.2% | Reduced |
| Geode Capital Management, LLC | 3,846,864 | $524.8M | 0.04% | +151,388+4.1% | Added |
| T. Rowe Price Investment Management, Inc. | 2,660,290 | $364.0M | 0.24% | −439,496−14.2% | Reduced |
| Invesco Ltd. | 2,265,007 | $309.9M | 0.06% | +136,200+6.4% | Added |
| Norges Bank | 2,153,386 | $294.7M | 0.04% | −171,813−7.4% | Reduced |
| Morgan Stanley | 1,990,668 | $272.4M | 0.02% | +208,312+11.7% | Added |
| D. E. Shaw & Co., Inc. | 1,585,572 | $217.0M | 0.26% | −24,327−1.5% | Reduced |
| UBS Asset Management Americas Inc | 1,510,386 | $206.7M | 0.05% | −23,427−1.5% | Reduced |
| Northern Trust Corp | 1,501,087 | $205.4M | 0.03% | −49,043−3.2% | Reduced |
| JPMorgan Chase & Co | 1,463,720 | $200.3M | 0.02% | −632,594−30.2% | Reduced |
| AQR Capital Management LLC | 1,368,842 | $187.3M | 0.19% | +829,150+153.6% | Added |
| Pacer Advisors, Inc. | 1,352,560 | $185.1M | 0.44% | −1,314,971−49.3% | Reduced |
| FMR LLC | 1,308,828 | $179.1M | 0.01% | +551,258+72.8% | Added |
| Legal & General Group Plc | 1,285,027 | $175.8M | 0.05% | +55,020+4.5% | Added |
| Amundi | 1,315,947 | $172.0M | 0.06% | +98,957+8.1% | Added |
| Qube Research & Technologies Ltd | 1,226,709 | $167.9M | 0.26% | +135,867+12.5% | Added |
| Price T Rowe Associates Inc | 1,151,192 | $157.5M | 0.02% | −782,524−40.5% | Reduced |
| Van Eck Associates Corp | 1,073,622 | $146.9M | 0.19% | +7,162+0.7% | Added |
| Charles Schwab Investment Management Inc | 1,019,219 | $139.5M | 0.03% | +47,956+4.9% | Added |
| Dimensional Fund Advisors LP | 986,719 | $135.0M | 0.03% | −35,305−3.5% | Reduced |
| Bank of New York Mellon Corp | 953,811 | $130.5M | 0.03% | −20,984−2.2% | Reduced |
| Deutsche Bank AG | 941,052 | $128.8M | 0.05% | −228,518−19.5% | Reduced |
| Barclays PLC | 918,353 | $125.7M | 0.06% | +79,999+9.5% | Added |
| Two Sigma Investments, LP | 879,330 | $120.3M | 0.26% | +26,994+3.2% | Added |
| Renaissance Technologies LLC | 804,506 | $110.1M | 0.17% | −387,700−32.5% | Reduced |
| Balyasny Asset Management LLC | 786,219 | $107.6M | 0.27% | +740,390+1,615.5% | Added |
| Man Group plc | 765,321 | $104.7M | 0.31% | +78,771+11.5% | Added |
| Bank of America Corp | 729,856 | $99.9M | 0.01% | +313,634+75.4% | Added |
| SG Americas Securities, LLC | 719,793 | $98.5M | 0.34% | +719,793 | New |
| Massachusetts Financial Services Co | 708,415 | $96.9M | 0.03% | −23,961−3.3% | Reduced |
| Employees Provident Fund Board | 704,196 | $96.4M | 1.09% | 00.0% | Unchanged |
| Two Sigma Advisers, LP | 677,400 | $92.7M | 0.21% | +142,800+26.7% | Added |
| Allianz Asset Management GmbH | 667,767 | $91.4M | 0.13% | +131,813+24.6% | Added |
| First Trust Advisors LP | 661,420 | $90.5M | 0.08% | +150,140+29.4% | Added |
| UBS Group AG | 646,147 | $88.4M | 0.02% | −402,272−38.4% | Reduced |
| Goldman Sachs Group Inc | 604,697 | $82.7M | 0.02% | −165,623−21.5% | Reduced |
| Franklin Resources Inc | 588,117 | $80.5M | 0.02% | +193,726+49.1% | Added |
| Citadel Advisors LLC | 541,764 | $74.1M | 0.07% | +388,104+252.6% | Added |
| HSBC Holdings PLC | 484,029 | $66.0M | 0.04% | +43,028+9.8% | Added |
| Patient Capital Management, LLC | 455,605 | $62.3M | 3.21% | +41,645+10.1% | Added |
| Robeco Institutional Asset Management B.V. | 453,529 | $62.1M | 0.12% | +45,253+11.1% | Added |
| Causeway Capital Management LLC | 433,517 | $59.3M | 1.24% | +151,815+53.9% | Added |
| Millennium Management LLC | 423,997 | $58.0M | 0.06% | −119,847−22.0% | Reduced |
| Prudential Financial Inc | 420,649 | $57.6M | 0.08% | −155,627−27.0% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 416,960 | $57.1M | 0.04% | +25,464+6.5% | Added |
| Squarepoint Ops LLC | 415,510 | $56.9M | 0.14% | +44,309+11.9% | Added |
| Swiss National Bank | 411,000 | $56.2M | 0.04% | −500−0.1% | Reduced |
| Point72 Asset Management, L.P. | 407,257 | $55.7M | 0.16% | +407,257 | New |
| AustralianSuper Pty Ltd | 397,697 | $54.4M | 0.31% | +397,697 | New |
| California Public Employees Retirement System | 385,094 | $52.7M | 0.04% | −12,755−3.2% | Reduced |
| BNP Paribas Arbitrage, SA | 366,181 | $50.1M | 0.04% | −11,780−3.1% | Reduced |
| Royal Bank of Canada | 330,562 | $45.2M | 0.01% | +84,227+34.2% | Added |
| Citigroup Inc | 302,615 | $41.4M | 0.03% | +38,276+14.5% | Added |
| Fisher Asset Management, LLC | 299,030 | $40.9M | 0.02% | +118,106+65.3% | Added |
| Rhumbline Advisers | 296,294 | $40.5M | 0.04% | +27,703+10.3% | Added |
| TD Asset Management Inc | 284,376 | $38.9M | 0.04% | −71,330−20.1% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 277,834 | $38.0M | 0.17% | +137,514+98.0% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 273,548 | $37.4M | 0.03% | +27,734+11.3% | Added |
| National Pension Service | 271,483 | $37.1M | 0.04% | +21,398+8.6% | Added |
| Susquehanna International Group, LLP | 268,372 | $36.7M | 0.06% | −216,676−44.7% | Reduced |
| Thompson Siegel & Walmsley LLC | 257,456 | $35.2M | 0.60% | +257,456 | New |
| LSV Asset Management | 241,976 | $33.1M | 0.08% | +7,528+3.2% | Added |
| Verition Fund Management LLC | 238,952 | $32.7M | 0.19% | +11,822+5.2% | Added |
| Canada Pension Plan Investment Board | 230,804 | $31.6M | 0.03% | −30,358−11.6% | Reduced |
| California State Teachers Retirement System | 230,535 | $31.5M | 0.04% | −2,783−1.2% | Reduced |
| Alliancebernstein L.P. | 229,054 | $31.3M | 0.01% | +48,331+26.7% | Added |
| ProShare Advisors LLC | 224,655 | $30.7M | 0.07% | +26,329+13.3% | Added |
| Pictet Asset Management Holding SA | 217,530 | $30.0M | 0.03% | −76,163−25.9% | Reduced |
| Arrowstreet Capital, Limited Partnership | 214,780 | $29.4M | 0.02% | +214,780 | New |
| Nomura Holdings Inc | 213,770 | $29.3M | 0.16% | −5,110−2.3% | Reduced |
| Capital Fund Management S.A. | 213,015 | $29.1M | 0.37% | −27,328−11.4% | Reduced |
| Russell Investments Group, Ltd. | 207,649 | $28.4M | 0.04% | +85,886+70.5% | Added |
| Palo Alto Investors LP | 204,923 | $28.0M | 5.34% | +14,775+7.8% | Added |
| National Bank of Canada | 201,533 | $27.6M | 0.03% | +23,644+13.3% | Added |
| Hudson Bay Capital Management LP | 200,520 | $27.4M | 0.17% | −40,488−16.8% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 187,803 | $25.7M | 0.07% | +43,651+30.3% | Added |
| Candriam Luxembourg S.C.A. | 186,780 | $25.6M | 0.16% | −15,184−7.5% | Reduced |
| Retirement Systems of Alabama | 183,551 | $25.1M | 0.10% | −1,832−1.0% | Reduced |
| Rafferty Asset Management, LLC | 180,775 | $24.7M | 0.11% | −8,745−4.6% | Reduced |
| HRT Financial LP | 178,342 | $24.4M | 0.15% | +178,342 | New |
| Principal Financial Group Inc | 164,836 | $22.6M | 0.01% | +136+0.1% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 157,461 | $21.5M | 0.04% | +4,594+3.0% | Added |
| KLP Kapitalforvaltning AS | 156,077 | $21.4M | 0.10% | +63,700+69.0% | Added |
| Wells Fargo & Company | 154,485 | $21.1M | 0.01% | +43,442+39.1% | Added |
| AXA S.A. | 153,969 | $21.1M | 0.07% | −7,667−4.7% | Reduced |
| Nisa Investment Advisors, LLC | 153,217 | $21.0M | 0.10% | −46,037−23.1% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 152,593 | $20.9M | 0.06% | −25,875−14.5% | Reduced |
| Standard Life Aberdeen plc | 146,813 | $20.0M | 0.04% | −396,597−73.0% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 144,593 | $19.8M | 0.04% | +27,353+23.3% | Added |
| Cubist Systematic Strategies, LLC | 140,881 | $19.3M | 0.25% | +25,938+22.6% | Added |
| Voloridge Investment Management, LLC | 134,489 | $18.4M | 0.07% | −17,189−11.3% | Reduced |
| State Board of Administration of Florida Retirement System | 133,547 | $18.3M | 0.04% | 00.0% | Unchanged |
| Bank of Montreal | 132,968 | $18.2M | 0.01% | −78,368−37.1% | Reduced |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 132,891 | $18.2M | 0.02% | +60,073+82.5% | Added |
| New York State Common Retirement Fund | 131,146 | $17.9M | 0.03% | +20,130+18.1% | Added |
| Banco Bilbao Vizcaya Argentaria, S.A. | 129,513 | $17.7M | 0.18% | +2,231+1.8% | Added |