Insider Trading

BIIB Stock Insider Trading Activity

Corporate insiders are required to disclose purchases or sales of their own stock within two business days of when they occur. Using these disclosures, we collect data on BIIB stock insider trading activity, which can give hints on whether executives are bullish or bearish on their own company.

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Recent insider purchases and sales - BIIB

Name / Title	Purchase / Sale	Shares	Date	Disclosed (EST)
Singhal Priya Head of Development	Sale	110	Dec 09, 2024	Dec. 9, 2024, 5:57 p.m.
Singhal Priya Head of Development	Sale	431	Sep 03, 2024	Sept. 5, 2024, 6 a.m.
Singhal Priya Head of Development	Sale	93	Apr 02, 2024	April 3, 2024, 8:24 p.m.
Singhal Priya Head of Development	Sale	262	Feb 22, 2024	Feb. 26, 2024, 8:54 p.m.
Singhal Priya Head of Development	Sale	108	Feb 16, 2024	Feb. 21, 2024, 10:27 p.m.
Rowinsky Eric K	Purchase	455	Feb 15, 2024	Feb. 20, 2024, 10:13 p.m.
Singhal Priya Head of Development	Sale	419	Feb 12, 2024	Feb. 13, 2024, 7:06 p.m.
Singhal Priya Head of Development	Sale	634	Feb 02, 2024	Feb. 5, 2024, 7:38 p.m.
Singhal Priya Head of Development	Sale	110	Dec 11, 2023	Dec. 12, 2023, 6:06 p.m.
Singhal Priya Head of Development	Sale	431	Sep 05, 2023	Sept. 6, 2023, 6:06 p.m.
Singhal Priya Head of Development	Sale	81	Jul 03, 2023	July 5, 2023, 5:33 p.m.
Gregory Ginger EVP, Human Resources	Sale	2681	Apr 28, 2023	May 2, 2023, 8:05 p.m.
Singhal Priya Head of Development	Sale	91	Apr 04, 2023	April 6, 2023, 6:37 p.m.
Singhal Priya Head of Development	Sale	568	Mar 28, 2023	March 30, 2023, 6:31 p.m.
Gregory Ginger EVP, Human Resources	Sale	5610	Nov 14, 2022	Dec. 12, 2022, 9 p.m.
ALEXANDER SUSAN H EVP Chief Legal Off & Corp Sec	Sale	5532	Oct 27, 2022	Oct. 28, 2022, 7:19 p.m.
Sandrock Alfred Head of Research & Development	Sale	7672	Jun 07, 2021	June 8, 2021, 8 p.m.
Guindo Chirfi Head of Glob Prod Strat & Com	Sale	3087	Jun 07, 2021	June 8, 2021, 8 p.m.
Posner Brian S	Sale	360	Jun 04, 2021	June 6, 2021, 8 p.m.