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 2024
Institutional positions in Biogen Inc. as of Mar 31, 2024. 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
- 955
- −41 vs. Q4 2023
- Shares held
- 129.7M
- +1.13M (+0.9%) vs. Q4 2023
- Total value
- $28.0B
- −$5.30B (−15.9%) vs. Q4 2023
- New holders
- 105
- 304 more added
- Sold out
- 146
- 354 more reduced
9 institutions that held it in Q4 2023 haven't filed for Q1 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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 | 1,046 | $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 2024
Shares, value and share of portfolio for each institution holding Biogen Inc.; share changes are against Q4 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Vanguard Group Inc | 16,570,398 | $3.57B | 0.07% | +2,163,068+15.0% | Added |
| Primecap Management Co | 16,220,716 | $3.50B | 2.61% | −43,765−0.3% | Reduced |
| BlackRock Inc. | 14,144,988 | $3.05B | 0.07% | −101,670−0.7% | Reduced |
| State Street Corp | 6,747,008 | $1.45B | 0.07% | −198,657−2.9% | Reduced |
| T. Rowe Price Investment Management, Inc. | 5,169,970 | $1.11B | 0.68% | −187,356−3.5% | Reduced |
| Wellington Management Group LLP | 5,120,142 | $1.10B | 0.20% | −204,254−3.8% | Reduced |
| JPMorgan Chase & Co | 4,720,144 | $1.02B | 0.09% | −352,496−6.9% | Reduced |
| Geode Capital Management, LLC | 3,409,674 | $733.4M | 0.07% | +100,357+3.0% | Added |
| Van Eck Associates Corp | 1,737,340 | $374.6M | 0.57% | +316,144+22.2% | Added |
| Morgan Stanley | 1,701,383 | $366.9M | 0.03% | +123,606+7.8% | Added |
| Invesco Ltd. | 1,668,017 | $359.7M | 0.08% | −146,649−8.1% | Reduced |
| Price T Rowe Associates Inc | 1,589,629 | $342.8M | 0.04% | +81,283+5.4% | Added |
| Beutel, Goodman & Co Ltd. | 1,565,785 | $337.6M | 1.74% | +570,329+57.3% | Added |
| Clearbridge Investments, LLC | 1,561,660 | $336.7M | 0.27% | −117,642−7.0% | Reduced |
| Norges Bank | 1,523,141 | $328.4M | 0.05% | +59,570+4.1% | Added |
| Northern Trust Corp | 1,388,386 | $299.4M | 0.05% | −106,577−7.1% | Reduced |
| Bank of New York Mellon Corp | 1,376,002 | $296.7M | 0.06% | −13,696−1.0% | Reduced |
| Dimensional Fund Advisors LP | 1,320,986 | $284.8M | 0.08% | −103,673−7.3% | Reduced |
| Legal & General Group Plc | 1,307,720 | $282.0M | 0.08% | −17,376−1.3% | Reduced |
| Deutsche Bank AG | 1,057,461 | $228.0M | 0.11% | −132,429−11.1% | Reduced |
| Pictet Asset Management Holding SA | 1,014,278 | $218.9M | 0.24% | −243,681−19.4% | Reduced |
| Goldman Sachs Group Inc | 994,365 | $214.4M | 0.05% | −101,458−9.3% | Reduced |
| UBS Asset Management Americas Inc | 972,143 | $209.6M | 0.07% | −42,440−4.2% | Reduced |
| OrbiMed Advisors LLC | 900,900 | $194.3M | 3.80% | +73,300+8.9% | Added |
| Renaissance Technologies LLC | 884,704 | $190.8M | 0.30% | +126,098+16.6% | Added |
| Amundi | 985,802 | $187.8M | 0.08% | −215,904−18.0% | Reduced |
| Charles Schwab Investment Management Inc | 858,805 | $185.2M | 0.04% | +9,805+1.2% | Added |
| American Century Companies Inc | 842,467 | $181.7M | 0.11% | −146,209−14.8% | Reduced |
| Ameriprise Financial Inc | 798,660 | $172.3M | 0.05% | +596,173+294.4% | Added |
| Ra Capital Management, L.P. | 740,727 | $159.7M | 2.03% | +207,835+39.0% | Added |
| FIL Ltd | 702,412 | $151.5M | 0.15% | +45,910+7.0% | Added |
| Employees Provident Fund Board | 678,080 | $146.2M | 2.57% | +113,807+20.2% | Added |
| Sarissa Capital Management LP | 643,000 | $138.7M | 24.26% | 00.0% | Unchanged |
| FMR LLC | 620,850 | $133.9M | 0.01% | −380,294−38.0% | Reduced |
| Allianz Asset Management GmbH | 620,244 | $133.7M | 0.23% | −98,475−13.7% | Reduced |
| Massachusetts Financial Services Co | 574,975 | $124.0M | 0.04% | −5,090−0.9% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 570,533 | $123.0M | 0.33% | +122,101+27.2% | Added |
| Barclays PLC | 540,565 | $116.6M | 0.05% | +8,305+1.6% | Added |
| UBS Group AG | 475,826 | $102.6M | 0.03% | +137,472+40.6% | Added |
| Standard Life Aberdeen plc | 455,864 | $98.3M | 0.19% | +18,789+4.3% | Added |
| Bank of America Corp | 443,622 | $95.7M | 0.01% | +17,048+4.0% | Added |
| Swiss National Bank | 433,900 | $93.6M | 0.07% | −19,000−4.2% | Reduced |
| AXA S.A. | 407,838 | $87.9M | 0.26% | −42,905−9.5% | Reduced |
| California Public Employees Retirement System | 404,419 | $87.2M | 0.06% | +41,210+11.3% | Added |
| Royal Bank of Canada | 403,278 | $87.0M | 0.02% | +29,264+7.8% | Added |
| Camber Capital Management LP | 400,000 | $86.3M | 3.02% | +400,000 | New |
| HSBC Holdings PLC | 398,842 | $86.0M | 0.06% | +73,234+22.5% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 386,482 | $83.3M | 0.06% | +3,380+0.9% | Added |
| Franklin Resources Inc | 385,583 | $83.1M | 0.03% | −112,766−22.6% | Reduced |
| TD Asset Management Inc | 367,236 | $79.2M | 0.07% | −22,748−5.8% | Reduced |
| Parnassus Investments | 360,742 | $77.8M | 0.17% | 00.0% | Unchanged |
| Nuveen Asset Management, LLC | 347,116 | $74.8M | 0.02% | −100,034−22.4% | Reduced |
| First Trust Advisors LP | 334,296 | $72.1M | 0.07% | −643,012−65.8% | Reduced |
| Two Sigma Investments, LP | 326,425 | $70.4M | 0.17% | +272,400+504.2% | Added |
| Squarepoint Ops LLC | 314,709 | $67.9M | 0.28% | +224,407+248.5% | Added |
| National Pension Service | 314,116 | $67.7M | 0.08% | +11,799+3.9% | Added |
| D. E. Shaw & Co., Inc. | 300,008 | $64.7M | 0.08% | +276,073+1,153.4% | Added |
| Polar Capital Holdings Plc | 300,000 | $64.7M | 0.39% | 00.0% | Unchanged |
| Credit Suisse AG | 291,725 | $62.9M | 0.06% | −26,696−8.4% | Reduced |
| Palo Alto Investors LP | 289,958 | $62.5M | 7.05% | −90,459−23.8% | Reduced |
| BNP Paribas Arbitrage, SA | 281,401 | $60.7M | 0.07% | +83,799+42.4% | Added |
| Rhumbline Advisers | 278,644 | $60.1M | 0.06% | +597+0.2% | Added |
| Brown Advisory Inc | 272,880 | $58.8M | 0.08% | +101,576+59.3% | Added |
| Bank of Montreal | 236,815 | $58.0M | 0.03% | −55,585−19.0% | Reduced |
| Candriam Luxembourg S.C.A. | 267,042 | $57.6M | 0.37% | +81,757+44.1% | Added |
| Erste Asset Management GmbH | 264,414 | $57.1M | 0.78% | −10,498−3.8% | Reduced |
| Adage Capital Partners GP, L.L.C. | 251,582 | $54.2M | 0.10% | −104,226−29.3% | Reduced |
| Susquehanna International Group, LLP | 243,414 | $52.5M | 0.08% | +164,824+209.7% | Added |
| Robeco Institutional Asset Management B.V. | 231,516 | $49.9M | 0.11% | −62,024−21.1% | Reduced |
| State Board of Administration of Florida Retirement System | 178,436 | $49.6M | 0.12% | +19,115+12.0% | Added |
| California State Teachers Retirement System | 227,072 | $49.0M | 0.06% | +650+0.3% | Added |
| Hudson Bay Capital Management LP | 225,000 | $48.5M | 0.43% | +90,000+66.7% | Added |
| Wells Fargo & Company | 221,076 | $47.7M | 0.01% | −10,375−4.5% | Reduced |
| Citigroup Inc | 218,717 | $47.2M | 0.05% | −1,936−0.9% | Reduced |
| Patient Capital Management, LLC | 217,887 | $47.0M | 2.29% | +217,887 | New |
| Envestnet Asset Management Inc | 217,738 | $47.0M | 0.02% | −18,713−7.9% | Reduced |
| Alliancebernstein L.P. | 201,891 | $43.5M | 0.02% | −27,922−12.1% | Reduced |
| Thrivent Financial for Lutherans | 201,396 | $43.4M | 0.09% | −57,961−22.3% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 154,328 | $39.4M | 0.09% | −6,396−4.0% | Reduced |
| Wedge Capital Management L L P | 181,524 | $39.1M | 0.63% | +54,036+42.4% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 179,419 | $38.7M | 0.05% | +29,991+20.1% | Added |
| Millennium Management LLC | 176,412 | $38.0M | 0.03% | +171,877+3,790.0% | Added |
| SG Americas Securities, LLC | 176,262 | $38.0M | 0.19% | +162,083+1,143.1% | Added |
| ProShare Advisors LLC | 174,000 | $37.5M | 0.10% | +29,890+20.7% | Added |
| Two Sigma Advisers, LP | 171,300 | $36.9M | 0.09% | +130,200+316.8% | Added |
| Raymond James & Associates | 168,124 | $36.3M | 0.02% | +26,048+18.3% | Added |
| Alyeska Investment Group, L.P. | 166,693 | $35.9M | 0.22% | −255,987−60.6% | Reduced |
| Principal Financial Group Inc | 166,602 | $35.9M | 0.02% | +2,069+1.3% | Added |
| Saratoga Research & Investment Management | 162,851 | $35.1M | 1.60% | −1,375−0.8% | Reduced |
| Citadel Advisors LLC | 149,298 | $32.2M | 0.03% | +144,037+2,737.8% | Added |
| Capital Fund Management S.A. | 147,430 | $31.8M | 0.39% | +147,430 | New |
| Russell Investments Group, Ltd. | 146,628 | $31.6M | 0.05% | +23,358+18.9% | Added |
| Korea Investment CORP | 140,871 | $30.4M | 0.08% | −34,924−19.9% | Reduced |
| Victory Capital Management Inc | 135,254 | $29.2M | 0.03% | +4,106+3.1% | Added |
| Krensavage Asset Management, LLC | 134,068 | $28.9M | 12.82% | −26,412−16.5% | Reduced |
| Manufacturers Life Insurance Company, The | 132,425 | $28.6M | 0.03% | −2,751−2.0% | Reduced |
| Zimmer Partners, LP | 129,950 | $28.0M | 0.61% | +13,250+11.4% | Added |
| Railway Pension Investments Ltd | 127,722 | $27.5M | 0.27% | 00.0% | Unchanged |
| New York State Teachers Retirement System | 126,819 | $27.3M | 0.06% | −8,630−6.4% | Reduced |
| Great West Life Assurance Co | 125,227 | $27.0M | 0.05% | −20,416−14.0% | Reduced |