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, Q4 2023
Institutional positions in Biogen Inc. as of Dec 31, 2023. 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
- 1,005
- +56 vs. Q3 2023
- Shares held
- 128.7M
- +4.02M (+3.2%) vs. Q3 2023
- Total value
- $33.3B
- +$1.22B (+3.8%) vs. Q3 2023
- New holders
- 137
- 287 more added
- Sold out
- 81
- 373 more reduced
17 institutions that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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 | 1,047 | $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, Q4 2023
Shares, value and share of portfolio for each institution holding Biogen Inc.; share changes are against Q3 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| State Street Corp | 6,945,665 | $1.80B | 0.09% | +80,011+1.2% | Added |
| BlackRock Inc. | 14,246,658 | $3.69B | 0.09% | +272,071+1.9% | Added |
| Vanguard Group Inc | 14,407,330 | $3.73B | 0.08% | +2,218,744+18.2% | Added |
| Primecap Management Co | 16,264,481 | $4.21B | 3.33% | +251,915+1.6% | Added |
| Transamerica Financial Advisors, Inc. | 1 | – | – | 00.0% | Unchanged |
| Samlyn Capital, LLC | 0 | $0 | 0.00% | −420,355−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −209,160−100.0% | Sold out |
| Arrowstreet Capital, Limited Partnership | 0 | $0 | 0.00% | −196,954−100.0% | Sold out |
| PFM Health Sciences, LP | 0 | $0 | 0.00% | −186,635−100.0% | Sold out |
| Avidity Partners Management LP | 0 | $0 | 0.00% | −115,400−100.0% | Sold out |
| Boone Capital Management LLC | 0 | $0 | 0.00% | −96,115−100.0% | Sold out |
| J. Goldman & Co LP | 0 | $0 | 0.00% | −56,921−100.0% | Sold out |
| Grantham, Mayo, Van Otterloo & Co. LLC | 0 | $0 | 0.00% | −56,740−100.0% | Sold out |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −48,100−100.0% | Sold out |
| Jupiter Asset Management Ltd | 0 | $0 | 0.00% | −41,279−100.0% | Sold out |
| Bridger Management, LLC | 0 | $0 | 0.00% | −34,261−100.0% | Sold out |
| Parallax Volatility Advisers, L.P. | 0 | $0 | 0.00% | −24,775−100.0% | Sold out |
| Old Mission Capital LLC | 0 | $0 | 0.00% | −19,823−100.0% | Sold out |
| LMR Partners LLP | 0 | $0 | 0.00% | −15,294−100.0% | Sold out |
| Agf Management Ltd | 0 | $0 | 0.00% | −11,137−100.0% | Sold out |
| Teza Capital Management LLC | 0 | $0 | 0.00% | −10,664−100.0% | Sold out |
| L2 Asset Management, LLC | 0 | $0 | 0.00% | −101−100.0% | Sold out |
| La Banque Postale Asset Management SA | 0 | $0 | 0.00% | −6,795−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −6,328−100.0% | Sold out |
| Clear Street LLC | 0 | $0 | 0.00% | −5,000−100.0% | Sold out |
| Estate Counselors, LLC | 0 | $0 | 0.00% | −4,590−100.0% | Sold out |
| Edgestream Partners, L.P. | 0 | $0 | 0.00% | −4,386−100.0% | Sold out |
| Essex Investment Management Co LLC | 0 | $0 | 0.00% | −4,235−100.0% | Sold out |
| Pearl River Capital, LLC | 0 | $0 | 0.00% | −4,098−100.0% | Sold out |
| Arjuna Capital | 0 | $0 | 0.00% | −3,772−100.0% | Sold out |
| Strategic Wealth Partners, Ltd. | 0 | $0 | 0.00% | −3,376−100.0% | Sold out |
| Westwood Holdings Group Inc. | 0 | $0 | 0.00% | −2,683−100.0% | Sold out |
| Pallas Capital Advisors LLC | 0 | $0 | 0.00% | −2,677−100.0% | Sold out |
| Kapitalo Investimentos Ltda | 0 | $0 | 0.00% | −2,379−100.0% | Sold out |
| Lloyd Advisory Services, LLC. | 0 | $0 | 0.00% | −2,146−100.0% | Sold out |
| Campbell & CO Investment Adviser LLC | 0 | $0 | 0.00% | −2,093−100.0% | Sold out |
| Fund Management at Engine No. 1 LLC | 0 | $0 | 0.00% | −2,071−100.0% | Sold out |
| Winton Group Ltd | 0 | $0 | 0.00% | −2,063−100.0% | Sold out |
| Centiva Capital, LP | 0 | $0 | 0.00% | −2,013−100.0% | Sold out |
| Vinva Investment Management Ltd | 0 | $0 | 0.00% | −1,997−100.0% | Sold out |
| Brevan Howard Capital Management LP | 0 | $0 | 0.00% | −1,928−100.0% | Sold out |
| Bay Colony Advisory Group, Inc d/b/a Bay Colony Advisors | 0 | $0 | 0.00% | −1,620−100.0% | Sold out |
| Elevatus Welath Management | 0 | $0 | 0.00% | −1,555−100.0% | Sold out |
| Wesbanco Bank Inc | 0 | $0 | 0.00% | −1,488−100.0% | Sold out |
| Moody National Bank Trust Division | 0 | $0 | 0.00% | −1,485−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −1,447−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −1,438−100.0% | Sold out |
| Lavaca Capital LLC | 0 | $0 | 0.00% | −1,434−100.0% | Sold out |
| Meiji Yasuda Life Insurance Co | 0 | $0 | 0.00% | −1,401−100.0% | Sold out |
| Sompo Asset Management Co., Ltd. | 0 | $0 | 0.00% | −1,100−100.0% | Sold out |
| Foundations Investment Advisors, LLC | 0 | $0 | 0.00% | −1,099−100.0% | Sold out |
| Cognios Beta Neutral Large Cap Fund, LP | 0 | $0 | 0.00% | −1,080−100.0% | Sold out |
| Worldquant Millennium Advisors LLC | 0 | $0 | 0.00% | −1,066−100.0% | Sold out |
| Kingswood Wealth Advisors, LLC | 0 | $0 | 0.00% | −1,006−100.0% | Sold out |
| Himension Fund | 0 | $0 | 0.00% | −998−100.0% | Sold out |
| Fort Sheridan Advisors LLC | 0 | $0 | 0.00% | −995−100.0% | Sold out |
| Zhang Financial LLC | 0 | $0 | 0.00% | −931−100.0% | Sold out |
| Narus Financial Partners, LLC | 0 | $0 | 0.00% | −900−100.0% | Sold out |
| Shay Capital LLC | 0 | $0 | 0.00% | −900−100.0% | Sold out |
| Stratos Wealth Advisors, LLC | 0 | $0 | 0.00% | −877−100.0% | Sold out |
| Founders Financial Alliance, LLC | 0 | $0 | 0.00% | −872−100.0% | Sold out |
| Nilsine Partners, LLC | 0 | $0 | 0.00% | −857−100.0% | Sold out |
| Avantax Advisory Services, Inc. | 0 | $0 | 0.00% | −833−100.0% | Sold out |
| Twinbeech Capital LP | 0 | $0 | 0.00% | −816−100.0% | Sold out |
| One Wealth Advisors, LLC | 0 | $0 | 0.00% | −809−100.0% | Sold out |
| Alpha Cubed Investments, LLC | 0 | $0 | 0.00% | −802−100.0% | Sold out |
| Newbridge Financial Services Group, Inc. | 0 | $0 | 0.00% | −500−100.0% | Sold out |
| WR Wealth Planners, LLC | 0 | $0 | 0.00% | −365−100.0% | Sold out |
| HM Payson & Co | 0 | $0 | 0.00% | −250−100.0% | Sold out |
| Baker Avenue Asset Management, LP | 0 | $0 | 0.00% | −183−100.0% | Sold out |
| Catalyst Capital Advisors LLC | 0 | $0 | 0.00% | −107−100.0% | Sold out |
| Earnest Partners LLC | 0 | $0 | 0.00% | −82−100.0% | Sold out |
| Stonebridge Capital Advisors LLC | 0 | $0 | 0.00% | −60−100.0% | Sold out |
| Atlas Capital Advisors LLC | 0 | $0 | 0.00% | −60−100.0% | Sold out |
| Riverview Trust Co | 0 | $0 | 0.00% | −47−100.0% | Sold out |
| Blue Bell Private Wealth Management, LLC | 0 | $0 | 0.00% | −40−100.0% | Sold out |
| Hazlett, Burt & Watson, Inc. | 0 | $0 | 0.00% | −35−100.0% | Sold out |
| Perkins Coie Trust Co | 0 | $0 | 0.00% | −22−100.0% | Sold out |
| Rock Creek Group, LP | 0 | $0 | 0.00% | −20−100.0% | Sold out |
| Activest Wealth Management | 0 | $0 | 0.00% | −15−100.0% | Sold out |
| Avion Wealth | 0 | $0 | 0.00% | −13−100.0% | Sold out |
| Park Place Capital Corp | 0 | $0 | 0.00% | −7−100.0% | Sold out |
| 1832 Asset Management L.P. | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| PFG Private Wealth Management, LLC | 0 | $0 | 0.00% | −4−100.0% | Sold out |
| ClariVest Asset Management LLC | 0 | $0 | 0.00% | −2−100.0% | Sold out |
| NewSquare Capital LLC | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| Virginia Retirement Systems Et Al | – | – | – | – | Not filed |
| International Biotechnology Trust PLC | – | – | – | – | Not filed |
| First Republic Investment Management, Inc. | – | – | – | – | Not filed |
| Advisor Partners II, LLC | – | – | – | – | Not filed |
| Pathstone Family Office, LLC | – | – | – | – | Not filed |
| Scott Investment Partners LLP | – | – | – | – | Not filed |
| Focus Financial Network, Inc. | – | – | – | – | Not filed |
| Ropes Wealth Advisors LLC | – | – | – | – | Not filed |
| Tradewinds, LLC. | – | – | – | – | Not filed |
| Icon Wealth Partners, LLC | – | – | – | – | Not filed |
| Syntax Advisors, LLC | – | – | – | – | Not filed |
| WFA of San Diego, LLC | – | – | – | – | Not filed |
| KB Financial Partners, LLC | – | – | – | – | Not filed |
| Steward Financial Group LLC | – | – | – | – | Not filed |