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BIIB · Biogen Inc. · Congressional Trades

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$218.43 -3.72 (-1.67%) At close · Oct 8
S&P 500 member Russell 1000 member Rebalance outlook locked
Market Cap
$32.80B
Shares
147.64M
Volume · Oct 8 1.34M Avg daily vol (3M) 1.08M

Transactions in this listed security by members of the U.S. Congress, disclosed under the STOCK Act. Lawmakers must report trades within 45 days, so the filing date can lag the trade itself.

Query congressional trades through the STOCK Act API or MCP →
Date Member Type Amount
2026-06-05 Gilbert Cisneros Buy ST · Biogen Inc. - Common Stock (BIIB) $1K - $15K
2026-06-02 Maria Elvira Salazar Sell ST · Biogen Inc. - Common Stock (BIIB) $15K - $50K
2026-05-12 Maria Elvira Salazar Buy ST · Biogen Inc. - Common Stock (BIIB) $1K - $15K
2026-05-11 Maria Elvira Salazar Buy ST · Biogen Inc. - Common Stock (BIIB) $1K - $15K
2026-05-11 Maria Elvira Salazar Buy ST · Biogen Inc. - Common Stock (BIIB) $50K - $100K
2026-03-27 Alan Armstrong Buy Stock · Biogen Inc. - Common Stock $1K - $15K
2026-01-30 Gilbert Cisneros Buy ST · Biogen Inc. - Common Stock (BIIB) $1K - $15K
2025-05-15 Rob Bresnahan Buy ST · Biogen Inc. - Common Stock (BIIB) $1K - $15K
2025-04-08 Rob Bresnahan Sell ST · Biogen Inc. - Common Stock (BIIB) $1K - $15K
2025-02-25 Rob Bresnahan Buy ST · Biogen Inc. - Common Stock (BIIB) $1K - $15K
2023-03-06 Daniel Goldman Sell ST · Biogen Inc. (BIIB) $1K - $15K
2023-01-23 Shri Thanedar Sell ST · Biogen Inc. (BIIB) $15K - $50K
2022-08-03 Kathy Manning Sell ST · Biogen Inc. (BIIB) $1K - $15K
2022-07-20 Kathy Manning Buy ST · Biogen Inc. (BIIB) $1K - $15K
2022-03-17 Josh Gottheimer Sell ST · Biogen Inc. (BIIB) $1K - $15K
2022-01-14 Kathy Manning Sell ST · Biogen Inc. (BIIB) $1K - $15K
2022-01-10 Josh Gottheimer Buy ST · biogen Inc. (bIIb) $1K - $15K
2021-12-09 Josh Gottheimer Sell ST · biogen Inc. (bIIb) $1K - $15K
2021-10-18 Josh Gottheimer Buy ST · biogen Inc. (bIIb) $1K - $15K
2021-09-15 Josh Gottheimer Sell ST · biogen Inc. (bIIb) $1K - $15K
2021-06-08 Josh Gottheimer Buy ST · biogen Inc. (bIIb) $1K - $15K
2021-02-16 Peter Meijer Sell ST · Biogen Inc. (BIIB) $15K - $50K
2021-01-04 Christopher L. Jacobs Sell ST · biogen Inc. (bIIb) $1K - $15K
2020-12-22 Gilbert Cisneros Sell ST · biogen Inc. (bIIb) $1K - $15K
2020-09-16 Gilbert Cisneros Buy ST · Biogen Inc. (BIIB) $1K - $15K
2020-07-07 Josh Gottheimer Buy ST · biogen Inc. (bIIb) $1K - $15K
2020-04-29 Gilbert Cisneros Buy ST · biogen Inc. (bIIb) $1K - $15K
2020-03-18 Gilbert Cisneros Sell ST · biogen Inc. (bIIb) $1K - $15K
2020-02-07 Gilbert Cisneros Buy ST · biogen Inc. (bIIb) $1K - $15K
Showing 1–29 of 29 trades
Key facts CIK 875045 CUSIP 09062X103 13F (30d) 36 filings 31 filers Visit website Investor relations