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, Q2 2021
Institutional positions in Biogen Inc. as of Jun 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
- 1,107
- +26 vs. Q1 2021
- Shares held
- 126.1M
- −1.15M (−0.9%) vs. Q1 2021
- Total value
- $43.6B
- +$8.06B (+22.7%) vs. Q1 2021
- New holders
- 136
- 325 more added
- Sold out
- 110
- 469 more reduced
15 institutions that held it in Q1 2021 haven't filed for Q2 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 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, Q2 2021
Shares, value and share of portfolio for each institution holding Biogen Inc.; share changes are against Q1 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Putnam Investments LLC | 152,742 | $52.9M | 0.08% | −74,536−32.8% | Reduced |
| United Capital Financial Advisers, LLC | 153,393 | $53.1M | 0.27% | +1,197+0.8% | Added |
| Marshall Wace North America L.P. | 159,932 | $55.4M | 0.23% | −20,267−11.2% | Reduced |
| Victory Capital Management Inc | 163,265 | $56.5M | 0.05% | −6,900−4.1% | Reduced |
| Eaton Vance Management | 163,514 | $56.6M | 0.08% | +260.0% | Added |
| Robeco Institutional Asset Management B.V. | 164,445 | $56.9M | 0.13% | −111,144−40.3% | Reduced |
| Caption Management, LLC | 169,304 | $58.6M | 5.26% | +93,830+124.3% | Added |
| HSBC Holdings PLC | 174,067 | $60.2M | 0.07% | −88,967−33.8% | Reduced |
| Principal Financial Group Inc | 178,953 | $62.0M | 0.04% | −1,605−0.9% | Reduced |
| Acadian Asset Management LLC | 179,221 | $62.1M | 0.23% | −171,511−48.9% | Reduced |
| Cambiar Investors LLC | 182,021 | $63.0M | 2.03% | +22,300+14.0% | Added |
| Avidity Partners Management LP | 183,900 | $63.7M | 1.72% | +183,900 | New |
| Arrowstreet Capital, Limited Partnership | 186,817 | $64.7M | 0.08% | +186,817 | New |
| Lord, Abbett & Co. LLC | 187,722 | $65.0M | 0.16% | +187,722 | New |
| New York State Teachers Retirement System | 189,408 | $65.6M | 0.14% | −11,632−5.8% | Reduced |
| Ameriprise Financial Inc | 189,409 | $65.6M | 0.02% | −8,513−4.3% | Reduced |
| Thrivent Financial for Lutherans | 190,285 | $65.9M | 0.13% | +29,693+18.5% | Added |
| DekaBank Deutsche Girozentrale | 191,945 | $66.0M | 0.19% | −22,998−10.7% | Reduced |
| Skandinaviska Enskilda Banken AB (publ) | 191,047 | $66.2M | 0.41% | +46,045+31.8% | Added |
| Westfield Capital Management Co LP | 191,842 | $66.4M | 0.40% | +189,985+10,230.7% | Added |
| ProShare Advisors LLC | 193,263 | $66.9M | 0.20% | −8,014−4.0% | Reduced |
| AXA S.A. | 193,933 | $67.2M | 0.19% | +24,043+14.2% | Added |
| Sprucegrove Investment Management Ltd | 200,400 | $69.4M | 1.64% | +96,900+93.6% | Added |
| Mitsubishi UFJ Trust & Banking Corp | 200,735 | $69.5M | 0.15% | −26,316−11.6% | Reduced |
| Allianz Asset Management GmbH | 202,341 | $70.1M | 0.06% | −30,680−13.2% | Reduced |
| Swedbank AB | 208,280 | $72.1M | 0.14% | −32,512−13.5% | Reduced |
| Tekla Capital Management LLC | 209,124 | $72.4M | 2.35% | −37,720−15.3% | Reduced |
| State Board of Administration of Florida Retirement System | 210,666 | $72.9M | 0.14% | +596+0.3% | Added |
| Employees Provident Fund Board | 212,569 | $73.6M | 1.21% | +10,500+5.2% | Added |
| Envestnet Asset Management Inc | 217,559 | $75.3M | 0.04% | +4,991+2.3% | Added |
| Erste Asset Management GmbH | 222,335 | $77.0M | 1.53% | +25,598+13.0% | Added |
| Bank of Montreal | 192,594 | $79.0M | 0.04% | +15,249+8.6% | Added |
| Prudential Financial Inc | 230,001 | $79.6M | 0.11% | −2,124−0.9% | Reduced |
| Alliancebernstein L.P. | 230,359 | $79.8M | 0.03% | −27,014−10.5% | Reduced |
| UBS Group AG | 239,209 | $82.8M | 0.03% | +40,143+20.2% | Added |
| Saratoga Research & Investment Management | 241,053 | $83.5M | 3.94% | −13,128−5.2% | Reduced |
| Canada Pension Plan Investment Board | 241,290 | $83.6M | 0.10% | −3,484−1.4% | Reduced |
| Great West Life Assurance Co | 241,935 | $83.8M | 0.19% | −22,759−8.6% | Reduced |
| Railway Pension Investments Ltd | 245,022 | $84.8M | 0.71% | −3,900−1.6% | Reduced |
| Point72 Asset Management, L.P. | 245,506 | $85.0M | 0.42% | +130,106+112.7% | Added |
| National Pension Service | 253,622 | $87.8M | 0.17% | +4,600+1.8% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 261,270 | $90.5M | 0.32% | −27,970−9.7% | Reduced |
| California State Teachers Retirement System | 264,242 | $91.5M | 0.11% | −30,775−10.4% | Reduced |
| Credit Suisse AG | 271,066 | $93.9M | 0.07% | −8,392−3.0% | Reduced |
| AustralianSuper Pty Ltd | 272,513 | $94.4M | 0.66% | −235,266−46.3% | Reduced |
| Rhumbline Advisers | 274,339 | $95.0M | 0.12% | −19,578−6.7% | Reduced |
| Candriam Luxembourg S.C.A. | 275,040 | $95.2M | 0.65% | −115,830−29.6% | Reduced |
| Citigroup Inc | 275,535 | $95.4M | 0.08% | +22,747+9.0% | Added |
| New York State Common Retirement Fund | 288,789 | $100.0M | 0.10% | −3,211−1.1% | Reduced |
| State of Wisconsin Investment Board | 291,563 | $101.0M | 0.21% | +140,375+92.8% | Added |
| Millennium Management LLC | 307,029 | $106.3M | 0.14% | +152,271+98.4% | Added |
| Boston Partners | 321,083 | $111.2M | 0.14% | +15,047+4.9% | Added |
| Barclays PLC | 328,233 | $113.7M | 0.09% | +32,878+11.1% | Added |
| Capital World Investors | 330,992 | $114.6M | 0.02% | 00.0% | Unchanged |
| HealthCor Management, L.P. | 339,300 | $117.5M | 4.82% | +258,790+321.4% | Added |
| Assenagon Asset Management S.A. | 352,079 | $121.9M | 0.52% | +88,059+33.4% | Added |
| LSV Asset Management | 360,170 | $124.7M | 0.21% | −557,961−60.8% | Reduced |
| Palo Alto Investors LP | 361,600 | $125.2M | 6.90% | +18,400+5.4% | Added |
| Armistice Capital, LLC | 368,000 | $127.4M | 3.38% | +80,000+27.8% | Added |
| Samlyn Capital, LLC | 376,231 | $130.3M | 1.99% | +376,231 | New |
| Susquehanna International Group, LLP | 377,310 | $130.7M | 0.14% | +116,668+44.8% | Added |
| Royal Bank of Canada | 387,868 | $134.3M | 0.04% | +36,132+10.3% | Added |
| First Trust Advisors LP | 432,106 | $149.6M | 0.16% | +10,447+2.5% | Added |
| Nordea Investment Management AB | 444,999 | $154.1M | 0.21% | −68,522−13.3% | Reduced |
| Parnassus Investments | 452,053 | $156.5M | 0.34% | +137,641+43.8% | Added |
| Franklin Resources Inc | 471,300 | $163.2M | 0.06% | −58,979−11.1% | Reduced |
| California Public Employees Retirement System | 473,506 | $164.0M | 0.12% | +100,803+27.0% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 494,725 | $171.3M | 0.10% | −37,667−7.1% | Reduced |
| AQR Capital Management LLC | 514,462 | $177.6M | 0.31% | −510,943−49.8% | Reduced |
| Bellevue Group AG | 528,100 | $182.9M | 1.79% | −30,300−5.4% | Reduced |
| Wells Fargo & Company | 549,636 | $190.3M | 0.04% | −31,100−5.4% | Reduced |
| Citadel Advisors LLC | 556,889 | $192.8M | 0.20% | +333,326+149.1% | Added |
| Van Eck Associates Corp | 596,547 | $206.6M | 0.49% | −27,497−4.4% | Reduced |
| Amundi | 619,698 | $214.6M | 0.15% | +619,698 | New |
| Swiss National Bank | 621,072 | $215.1M | 0.13% | +29,314+5.0% | Added |
| Sarissa Capital Management LP | 643,000 | $222.7M | 17.70% | 00.0% | Unchanged |
| Marshall Wace, LLP | 651,320 | $225.5M | 1.19% | +488,764+300.7% | Added |
| Parametric Portfolio Associates LLC | 684,964 | $237.2M | 0.13% | +22,666+3.4% | Added |
| Bank of America Corp | 692,251 | $239.7M | 0.03% | −125,515−15.3% | Reduced |
| Morgan Stanley | 702,175 | $243.1M | 0.03% | +84,388+13.7% | Added |
| Charles Schwab Investment Management Inc | 723,829 | $250.6M | 0.08% | +19,565+2.8% | Added |
| D. E. Shaw & Co., Inc. | 789,693 | $273.4M | 0.31% | +180,453+29.6% | Added |
| Goldman Sachs Group Inc | 841,078 | $291.2M | 0.08% | +3,518+0.4% | Added |
| Nuveen Asset Management, LLC | 849,906 | $294.3M | 0.09% | +22,598+2.7% | Added |
| Pictet Asset Management Ltd | 871,921 | $301.9M | 0.33% | −156,545−15.2% | Reduced |
| Invesco Ltd. | 1,043,458 | $361.3M | 0.09% | +9,417+0.9% | Added |
| UBS Asset Management Americas Inc | 1,138,473 | $394.2M | 0.17% | −21,311−1.8% | Reduced |
| Dimensional Fund Advisors LP | 1,187,688 | $411.3M | 0.13% | +75,020+6.7% | Added |
| American Century Companies Inc | 1,242,043 | $430.1M | 0.29% | +258,217+26.2% | Added |
| Renaissance Technologies LLC | 1,330,003 | $460.5M | 0.57% | −608,159−31.4% | Reduced |
| FMR LLC | 1,352,218 | $468.2M | 0.04% | −562,998−29.4% | Reduced |
| Legal & General Group Plc | 1,385,692 | $479.8M | 0.16% | +189,746+15.9% | Added |
| Deutsche Bank AG | 1,415,194 | $490.0M | 0.24% | +128,955+10.0% | Added |
| Price T Rowe Associates Inc | 1,612,563 | $558.4M | 0.05% | −164,608−9.3% | Reduced |
| Bank of New York Mellon Corp | 1,765,832 | $611.5M | 0.12% | −411,266−18.9% | Reduced |
| Norges Bank | 1,821,151 | $630.6M | 0.14% | +69,083+3.9% | Added |
| Northern Trust Corp | 2,067,539 | $715.9M | 0.13% | −52,969−2.5% | Reduced |
| Geode Capital Management, LLC | 2,893,750 | $1.00B | 0.14% | +97,239+3.5% | Added |
| Clearbridge Investments, LLC | 3,565,112 | $1.23B | 0.86% | −403,932−10.2% | Reduced |
| JPMorgan Chase & Co | 5,354,766 | $1.85B | 0.24% | +1,467,865+37.8% | Added |