Congress trades in Biogen (BIIB)

Healthcare · Drug Manufacturers - General

9 members of Congress have disclosed 50 trades in Biogen (BIIB) since 2014: 30 buys and 20 sales. The most recent was disclosed on Oct 9, 2026. 1 trade was made by members of a committee that oversees Biogen's industry.

Trades disclosed: 50
Members trading: 9
Buys / sells: 30 / 20
Reported value: $218K–$1.1M

Committee overlaps

Trades by members of a committee that oversees Biogen's industry. An overlap is a fact about the trade, not evidence of wrongdoing.

Committee overlap: HELP
Sen. Alan Armstrong (R-OK)
Bought Biogen BIIB
$1K–$15K · traded Mar 27, 2026

Who traded BIIB

MemberBuysSalesLast disclosed

Sen. Sheldon Whitehouse (D-RI)14 buys · 4 sales144Apr 17, 2019
Rep. Ro Khanna (D-CA-17)7 buys · 8 sales78Oct 9, 2026
Rep. Maria Elvira Salazar (R-FL-27)3 buys · 2 sales32Oct 8, 2026
Rep. Robert P. Bresnahan, Jr. (R-PA-8)2 buys · 1 sale21Jun 10, 2025
Sen. Susan M. Collins (R-ME)0 buys · 3 sales03Jul 20, 2015
Rep. Gilbert Ray Cisneros, Jr. (D-CA-31)2 buys · 0 sales20Jul 3, 2026
Sen. James M. Inhofe (R-OK)1 buy · 1 sale11Aug 4, 2016
Rep. Kevin Hern (R-OK-1)0 buys · 1 sale01Sep 2, 2026
Sen. Alan Armstrong (R-OK)1 buy · 0 sales10Jul 21, 2026

All trades

DisclosedTradeAmount

Oct 9, 2026
Rep. Ro Khanna (D-CA-17)
Sold Biogen BIIB
$1K–$15K · Traded Sep 11, 2026 · disclosed Oct 9, 2026 · Dependent
$1K–$15K
Oct 9, 2026
Rep. Ro Khanna (D-CA-17)
Bought Biogen BIIB
$1K–$15K · Traded Sep 4, 2026 · disclosed Oct 9, 2026 · Spouse
$1K–$15K
Oct 8, 2026
Rep. Maria Elvira Salazar (R-FL-27)
Sold Biogen BIIB
$1K–$15K · Traded Sep 24, 2026 · disclosed Oct 8, 2026
$1K–$15K
Sep 2, 2026
Rep. Kevin Hern (R-OK-1)
Sold (full) Biogen BIIB
$1K–$15K · Traded Aug 18, 2026 · disclosed Sep 2, 2026
$1K–$15K
Jul 21, 2026
Sen. Alan Armstrong (R-OK)
Bought Biogen BIIB
$1K–$15K · Traded Mar 27, 2026 · disclosed Jul 21, 2026 · filed 116 days later
Committee overlap: HELP
$1K–$15K
Jul 8, 2026
Rep. Maria Elvira Salazar (R-FL-27)
Sold (full) Biogen BIIB
$15K–$50K · Traded Jun 2, 2026 · disclosed Jul 8, 2026
$15K–$50K
Jul 3, 2026
Rep. Gilbert Ray Cisneros, Jr. (D-CA-31)
Bought Biogen BIIB
$1K–$15K · Traded Jun 5, 2026 · disclosed Jul 3, 2026
$1K–$15K
Jun 9, 2026
Rep. Maria Elvira Salazar (R-FL-27)
Bought Biogen BIIB
$1K–$15K · Traded May 12, 2026 · disclosed Jun 9, 2026
$1K–$15K
Jun 9, 2026
Rep. Maria Elvira Salazar (R-FL-27)
Bought Biogen BIIB
$50K–$100K · Traded May 11, 2026 · disclosed Jun 9, 2026
$50K–$100K
Jun 9, 2026
Rep. Maria Elvira Salazar (R-FL-27)
Bought Biogen BIIB
$1K–$15K · Traded May 11, 2026 · disclosed Jun 9, 2026
$1K–$15K
Feb 13, 2026
Rep. Gilbert Ray Cisneros, Jr. (D-CA-31)
Bought Biogen BIIB
$1K–$15K · Traded Jan 30, 2026 · disclosed Feb 13, 2026
$1K–$15K
Sep 12, 2025
Rep. Ro Khanna (D-CA-17)
Bought Biogen BIIB
$1K–$15K · Traded Aug 26, 2025 · disclosed Sep 12, 2025 · Dependent
$1K–$15K
Jun 10, 2025
Rep. Robert P. Bresnahan, Jr. (R-PA-8)
Bought Biogen BIIB
$1K–$15K · Traded May 15, 2025 · disclosed Jun 10, 2025
$1K–$15K
May 8, 2025
Rep. Robert P. Bresnahan, Jr. (R-PA-8)
Sold (full) Biogen BIIB
$1K–$15K · Traded Apr 8, 2025 · disclosed May 8, 2025
$1K–$15K
Mar 28, 2025
Rep. Robert P. Bresnahan, Jr. (R-PA-8)
Bought Biogen BIIB
$1K–$15K · Traded Feb 25, 2025 · disclosed Mar 28, 2025
$1K–$15K
Dec 6, 2024
Rep. Ro Khanna (D-CA-17)
Bought Biogen BIIB
$1K–$15K · Traded Nov 15, 2024 · disclosed Dec 6, 2024
$1K–$15K
Oct 8, 2024
Rep. Ro Khanna (D-CA-17)
Sold Biogen BIIB
$1K–$15K · Traded Sep 9, 2024 · disclosed Oct 8, 2024 · Spouse
$1K–$15K
Oct 8, 2024
Rep. Ro Khanna (D-CA-17)
Sold Biogen BIIB
$1K–$15K · Traded Sep 9, 2024 · disclosed Oct 8, 2024
$1K–$15K
Apr 5, 2024
Rep. Ro Khanna (D-CA-17)
Sold Biogen BIIB
$1K–$15K · Traded Mar 25, 2024 · disclosed Apr 5, 2024
$1K–$15K
Apr 5, 2024
Rep. Ro Khanna (D-CA-17)
Sold Biogen BIIB
$1K–$15K · Traded Mar 20, 2024 · disclosed Apr 5, 2024 · Spouse
$1K–$15K
Mar 6, 2024
Rep. Ro Khanna (D-CA-17)
Bought Biogen BIIB
$1K–$15K · Traded Feb 13, 2024 · disclosed Mar 6, 2024 · Spouse
$1K–$15K
Feb 5, 2024
Rep. Ro Khanna (D-CA-17)
Bought Biogen BIIB
$1K–$15K · Traded Jan 10, 2024 · disclosed Feb 5, 2024 · Spouse
$1K–$15K
Dec 6, 2023
Rep. Ro Khanna (D-CA-17)
Sold Biogen BIIB
$1K–$15K · Traded Nov 3, 2023 · disclosed Dec 6, 2023
$1K–$15K
Nov 8, 2023
Rep. Ro Khanna (D-CA-17)
Bought Biogen BIIB
$1K–$15K · Traded Oct 10, 2023 · disclosed Nov 8, 2023 · Spouse
$1K–$15K
Nov 8, 2023
Rep. Ro Khanna (D-CA-17)
Bought Biogen BIIB
$1K–$15K · Traded Oct 2, 2023 · disclosed Nov 8, 2023
$1K–$15K
Oct 6, 2023
Rep. Ro Khanna (D-CA-17)
Sold Biogen BIIB
$1K–$15K · Traded Sep 6, 2023 · disclosed Oct 6, 2023 · Spouse
$1K–$15K
Sep 6, 2023
Rep. Ro Khanna (D-CA-17)
Sold Biogen BIIB
$1K–$15K · Traded Aug 29, 2023 · disclosed Sep 6, 2023
$1K–$15K
Apr 17, 2019
Sen. Sheldon Whitehouse (D-RI)
Sold (full) Biogen BIIB
$1K–$15K · Traded Mar 22, 2019 · disclosed Apr 17, 2019 · Spouse
$1K–$15K
Feb 13, 2018
Sen. Sheldon Whitehouse (D-RI)
Sold (full) Biogen BIIB
$1K–$15K · Traded Jan 8, 2018 · disclosed Feb 13, 2018 · Joint
$1K–$15K
Jan 11, 2017
Sen. Sheldon Whitehouse (D-RI)
Sold (partial) Biogen BIIB
$1K–$15K · Traded Dec 23, 2016 · disclosed Jan 11, 2017 · Joint
$1K–$15K
Jan 11, 2017
Sen. Sheldon Whitehouse (D-RI)
Sold (full) Biogen BIIB
$15K–$50K · Traded Dec 13, 2016 · disclosed Jan 11, 2017
$15K–$50K
Aug 11, 2016
Sen. Sheldon Whitehouse (D-RI)
Bought Biogen BIIB
$1K–$15K · Traded Aug 10, 2015 · disclosed Aug 11, 2016 · filed 367 days later
$1K–$15K
Aug 11, 2016
Sen. Sheldon Whitehouse (D-RI)
Bought Biogen BIIB
$1K–$15K · Traded Aug 10, 2015 · disclosed Aug 11, 2016 · Joint · filed 367 days later
$1K–$15K
Aug 11, 2016
Sen. Sheldon Whitehouse (D-RI)
Bought Biogen BIIB
$1K–$15K · Traded Aug 4, 2015 · disclosed Aug 11, 2016 · filed 373 days later
$1K–$15K
Aug 11, 2016
Sen. Sheldon Whitehouse (D-RI)
Bought Biogen BIIB
$1K–$15K · Traded Aug 4, 2015 · disclosed Aug 11, 2016 · Spouse · filed 373 days later
$1K–$15K
Aug 4, 2016
Sen. James M. Inhofe (R-OK)
Sold (full) Biogen BIIB
$50K–$100K · Traded Jul 21, 2016 · disclosed Aug 4, 2016
$50K–$100K
Sep 24, 2015
Sen. Sheldon Whitehouse (D-RI)
Bought Biogen BIIB
$1K–$15K · Traded Aug 28, 2015 · disclosed Sep 24, 2015 · Joint
$1K–$15K
Sep 1, 2015
Sen. Sheldon Whitehouse (D-RI)
Bought Biogen BIIB
$1K–$15K · Traded Aug 10, 2015 · disclosed Sep 1, 2015
$1K–$15K
Sep 1, 2015
Sen. Sheldon Whitehouse (D-RI)
Bought Biogen BIIB
$1K–$15K · Traded Aug 10, 2015 · disclosed Sep 1, 2015 · Joint
$1K–$15K
Sep 1, 2015
Sen. Sheldon Whitehouse (D-RI)
Bought Biogen BIIB
$1K–$15K · Traded Aug 4, 2015 · disclosed Sep 1, 2015
$1K–$15K
Sep 1, 2015
Sen. Sheldon Whitehouse (D-RI)
Bought Biogen BIIB
$1K–$15K · Traded Aug 4, 2015 · disclosed Sep 1, 2015 · Spouse
$1K–$15K
Aug 12, 2015
Sen. Sheldon Whitehouse (D-RI)
Bought Biogen BIIB
$15K–$50K · Traded May 7, 2015 · disclosed Aug 12, 2015 · filed 97 days later
$15K–$50K
Jul 21, 2015
Sen. Sheldon Whitehouse (D-RI)
Bought Biogen BIIB
$1K–$15K · Traded Jul 10, 2015 · disclosed Jul 21, 2015
$1K–$15K
Jul 21, 2015
Sen. Sheldon Whitehouse (D-RI)
Bought Biogen BIIB
$1K–$15K · Traded Jul 10, 2015 · disclosed Jul 21, 2015 · Joint
$1K–$15K
Jul 20, 2015
Sen. Susan M. Collins (R-ME)
Sold (full) Biogen BIIB
$1K–$15K · Traded Jul 23, 2014 · disclosed Jul 20, 2015 · Spouse · filed 362 days later
$1K–$15K
Jul 15, 2015
Sen. James M. Inhofe (R-OK)
Bought Biogen BIIB
$15K–$50K · Traded Jul 9, 2015 · disclosed Jul 15, 2015
$15K–$50K
Jun 3, 2015
Sen. Sheldon Whitehouse (D-RI)
Bought Biogen BIIB
$15K–$50K · Traded May 7, 2015 · disclosed Jun 3, 2015
$15K–$50K
Apr 23, 2015
Sen. Sheldon Whitehouse (D-RI)
Bought Biogen BIIB
$1K–$15K · Traded Apr 7, 2015 · disclosed Apr 23, 2015 · Spouse
$1K–$15K
Aug 14, 2014
Sen. Susan M. Collins (R-ME)
Sold (full) Biogen BIIB
$1K–$15K · Traded Jul 23, 2014 · disclosed Aug 14, 2014 · Spouse
$1K–$15K
Apr 1, 2014
Sen. Susan M. Collins (R-ME)
Sold (partial) Biogen BIIB
$1K–$15K · Traded Mar 27, 2014 · disclosed Apr 1, 2014 · Spouse
$1K–$15K

From periodic transaction reports filed under the STOCK Act. Amounts are the ranges members report, and trades can be disclosed up to 45 days after they happen. Nothing here is investment advice.