The Hill Ledger

US-listed stock · BIIB

Biogen (BIIB): trades by Congress and insiders

In the last 12 months, 5 members of Congress disclosed 11 trades (7 buys, 4 sales); company insiders filed 2 open-market sales.

Congress trades
1112 months
Members trading
512 months
Insider buys / sales
0 / 212 months
Last close
$225.719 Oct 2026
One-year change
+50.9%

38 disclosed buys and sales on record since 27 March 2014; Congress bought an estimated $123 thousand and sold $56.5 thousand in the last 12 months. Insider counts are open-market trades only: awards, option exercises and tax withholding are left out.

Members of Congress who traded BIIB

Last three years, by number of disclosed trades.

Latest disclosures

DisclosedFiled byTypeAmountTraded
Ro KhannaHouse · D-CA Buy $1K–$15K
Ro KhannaHouse · D-CA Sale $1K–$15K
Maria Elvira SalazarHouse · R-FL Sale $1K–$15K
Kevin HernHouse · R-OK Sale $1K–$15K
Minor LloydCompany insider Sale $119K
Minor LloydCompany insider Sale $121K
Alan ArmstrongSenate · R-OK Buy $1K–$15K
Maria Elvira SalazarHouse · R-FL Sale $15K–$50K