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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 2024

Institutional positions in Biogen Inc. as of Jun 30, 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
947
+5 vs. Q1 2024
Shares held
129.0M
−367.1K (−0.3%) vs. Q1 2024
Total value
$29.9B
+$2.00B (+7.2%) vs. Q1 2024
New holders
101
322 more added
Sold out
96
338 more reduced

13 institutions that held it in Q1 2024 haven't filed for Q2 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 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.

Institutional holdersQ2 2024: 947 institutions
Q1 2021: 1,096 institutionsQ2 2021: 1,107 institutionsQ3 2021: 1,044 institutionsQ4 2021: 1,014 institutionsQ1 2022: 954 institutionsQ2 2022: 930 institutionsQ3 2022: 987 institutionsQ4 2022: 1,033 institutionsQ1 2023: 1,004 institutionsQ2 2023: 1,009 institutionsQ3 2023: 966 institutionsQ4 2023: 1,005 institutionsQ1 2024: 955 institutionsQ2 2024: 947 institutionsQ3 2024: 921 institutionsQ4 2024: 879 institutionsQ1 2025: 882 institutionsQ2 2025: 867 institutionsQ3 2025: 909 institutionsQ4 2025: 1,002 institutionsQ1 2026: 1,015 institutionsQ2 2026: 1,047 institutions
Value heldQ2 2024: $29.9B
Q1 2021: $35.7BQ2 2021: $43.6BQ3 2021: $35.1BQ4 2021: $29.7BQ1 2022: $25.9BQ2 2022: $25.0BQ3 2022: $33.0BQ4 2022: $34.6BQ1 2023: $35.0BQ2 2023: $36.1BQ3 2023: $32.2BQ4 2023: $33.3BQ1 2024: $28.0BQ2 2024: $29.9BQ3 2024: $25.1BQ4 2024: $20.2BQ1 2025: $17.7BQ2 2025: $16.3BQ3 2025: $18.4BQ4 2025: $24.6BQ1 2026: $24.7BQ2 2026: $30.7B
Institutions holding BIIB and their total value by quarter
QuarterHoldersValue
Q2 20261,047$30.7B
Q1 20261,015$24.7B
Q4 20251,002$24.6B
Q3 2025909$18.4B
Q2 2025867$16.3B
Q1 2025882$17.7B
Q4 2024879$20.2B
Q3 2024921$25.1B
Q2 2024947$29.9B
Q1 2024955$28.0B
Q4 20231,005$33.3B
Q3 2023966$32.2B
Q2 20231,009$36.1B
Q1 20231,004$35.0B
Q4 20221,033$34.6B
Q3 2022987$33.0B
Q2 2022930$25.0B
Q1 2022954$25.9B
Q4 20211,014$29.7B
Q3 20211,044$35.1B
Q2 20211,107$43.6B
Q1 20211,096$35.7B

Institutions, Q2 2024

Shares, value and share of portfolio for each institution holding Biogen Inc.; share changes are against Q1 2024.

Institutions holding BIIB in Q2 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Axq Capital, LP0$00.00%−1,800−100.0%Sold out
Fullerton Fund Management Co Ltd.0$00.00%−1,734−100.0%Sold out
Armstrong, Fleming & Moore, Inc0$00.00%−1,733−100.0%Sold out
Seven Eight Capital, LP0$00.00%−1,724−100.0%Sold out
Asahi Life Asset Management Co., Ltd.0$00.00%−1,660−100.0%Sold out
Teza Capital Management LLC0$00.00%−1,654−100.0%Sold out
Garda Capital Partners LP0$00.00%−1,579−100.0%Sold out
Weiss Asset Management LP0$00.00%−1,554−100.0%Sold out
ISAM Funds (UK) Ltd0$00.00%−1,389−100.0%Sold out
Dynamic Technology Lab Private Ltd0$00.00%−1,294−100.0%Sold out
Parkwood LLC0$00.00%−1,264−100.0%Sold out
Lincoln National Corp0$00.00%−1,157−100.0%Sold out
Alta Wealth Advisors LLC0$00.00%−1,103−100.0%Sold out
Jupiter Wealth Management LLC0$00.00%−1,000−100.0%Sold out
Oxford Asset Management LLP0$00.00%−1,008−100.0%Sold out
Herold Advisors, Inc.0$00.00%−993−100.0%Sold out
A. D. Beadell Investment Counsel, Inc.0$00.00%−970−100.0%Sold out
LM Advisors LLC0$00.00%−965−100.0%Sold out
DRW Securities, LLC0$00.00%−961−100.0%Sold out
Icon Wealth Advisors, LLC0$00.00%−774−100.0%Sold out
Mma Asset Management LLC0$00.00%−500−100.0%Sold out
Rowland & Co Investment Counsel0$00.00%−479−100.0%Sold out
Denali Advisors LLC0$00.00%−400−100.0%Sold out
LGT Group Foundation0$00.00%−350−100.0%Sold out
Mirova0$00.00%−327−100.0%Sold out
CoreFirst Bank & Trust0$00.00%−304−100.0%Sold out
City Holding Co0$00.00%−225−100.0%Sold out
Paloma Partners Management Co0$00.00%−220−100.0%Sold out
Motco0$00.00%−220−100.0%Sold out
EntryPoint Capital, LLC0$00.00%−167−100.0%Sold out
Riverview Trust Co0$00.00%−93−100.0%Sold out
First Manhattan Co0$00.00%−90−100.0%Sold out
Northwest Capital Management Inc0$00.00%−80−100.0%Sold out
Albion Financial Group0$00.00%−75−100.0%Sold out
Future Financial Wealth Managment LLC0$00.00%−65−100.0%Sold out
FRG Family Wealth Advisors LLC0$00.00%−33−100.0%Sold out
Gables Capital Management Inc.0$00.00%−30−100.0%Sold out
Hantz Financial Services, Inc.0$00.00%−26−100.0%Sold out
Tidemark, LLC0$00.00%−15−100.0%Sold out
Sofos Investments, Inc.0$00.00%−10−100.0%Sold out
Kayne Anderson Rudnick Investment Management LLC0$00.00%−3−100.0%Sold out
Tfo-TDC, LLC0$00.00%−3−100.0%Sold out
Piscataqua Savings Bank0$00.00%−3−100.0%Sold out
Credit Suisse AG––––Not filed
Degroof Petercam Asset Management––––Not filed
Fjarde Ap-Fonden /Fourth Swedish National Pension Fund––––Not filed
Shell Asset Management Co––––Not filed
Cognios Beta Neutral Large Cap Fund, LP––––Not filed
Connectus Wealth, LLC––––Not filed
Eudaimonia Partners, LLC––––Not filed
Richelieu Gestion PLC––––Not filed
Norwood Financial Corp––––Not filed
FSA Wealth Management LLC––––Not filed
Cambridge Trust Co––––Not filed
Pflug Koory, LLC––––Not filed
Retirement Group, LLC––––Not filed