Markets
Thursday, September 24, 2026
The Company Chronicle

NASDAQ-GS · traded in Congress

Biogen BIIB

$215.50 -3.55 (-1.62%) Sep 17, 2026

Market value$31.8B
P/E ratio-
Analyst target$240.00
52-week range-
Avg volume990,519
Dividend yieldN/A

Chart

Congress trades in BIIB

Members of Congress disclosed 7 transactions in BIIB in the filings we have processed.

TradedMemberTypeAmountFiled
08/18/2026 Kevin Hern OK01 Sale $1,001 - $15,000 9/1/2026 filing
06/05/2026 Gilbert Cisneros CA31 Purchase $1,001 - $15,000 7/2/2026 filing
06/02/2026 Maria Elvira Salazar FL27 Sale $15,001 - $50,000 7/7/2026 filing
05/12/2026 Maria Elvira Salazar FL27 Purchase $1,001 - $15,000 6/8/2026 filing
05/11/2026 Maria Elvira Salazar FL27 Purchase $1,001 - $15,000 6/8/2026 filing
05/11/2026 Maria Elvira Salazar FL27 Purchase $50,001 - $100,000 6/8/2026 filing
01/30/2026 Gilbert Cisneros CA31 Purchase $1,001 - $15,000 2/13/2026 filing

Disclosed under the STOCK Act. Amounts are the ranges the law requires, filings can lag a trade by up to 45 days, and a disclosure is not evidence of wrongdoing. All congressional trades ›

Other companies

Price and key figures from Nasdaq's public quote data, refreshed through the day; the chart is live from TradingView. Congressional trades parsed from official House filings. Market information, not investment advice.