Which Members of Congress Traded Biogen (BIIB)?
24 members of Congress have disclosed 63 trades in Biogen (BIIB) stock between Dec 20, 2013 and Sep 24, 2026: 30 purchases and 33 full or partial sales. In the last 12 months, 4 members disclosed 6 purchases and 3 sales. The latest is Maria Elvira Salazar’s partial sale of $1k – $15k on Sep 24, 2026.
Of the 26 trades whose filing names the account owner, 1 wasin a spouse’s account and 8 in a joint account.
House PTR filings as of Oct 22, 2026
Senate PTR filings as of Oct 21, 2026
Who are the members of Congress trading BIIB?
24 members| Member | Party | State | Chamber | Trades | Buys | Sells | Est. volume* | Latest |
|---|---|---|---|---|---|---|---|---|
| Sheldon Whitehouse | D | RI | Senate | 10 | 6 | 4 | $129k | 2019-03-22 |
| Gil Cisneros | D | CA-31 | House | 7 | 4 | 3 | $56k | 2026-06-05 |
| Josh Gottheimer | D | NJ-05 | House | 7 | 4 | 3 | $56k | 2022-03-17 |
| Maria Elvira Salazar | R | FL-27 | House | 5 | 3 | 2 | $132k | 2026-09-24 |
| Rubén Hinojosa | D | TX-15 | House | 4 | 1 | 3 | $32k | 2015-08-21 |
| Robert Bresnahan Jr | R | PA-08 | House | 3 | 2 | 1 | $24k | 2025-05-15 |
| Kathy Manning | D | NC-06 | House | 3 | 1 | 2 | $24k | 2022-08-03 |
| Tom MacArthur | R | NJ-03 | House | 3 | 3 | 0 | $24k | 2018-05-02 |
| Ed Whitfield | R | KY-01 | House | 3 | 1 | 2 | $24k | 2016-06-03 |
| Jim Inhofe | R | OK | Senate | 2 | 1 | 1 | $108k | 2016-07-21 |
| Mike Conaway | R | TX-11 | House | 2 | 1 | 1 | $16k | 2016-04-01 |
| Susan Collins | R | ME | Senate | 2 | 0 | 2 | $16k | 2014-07-23 |
| Kevin Hern | R | OK-01 | House | 1 | 0 | 1 | $8k | 2026-08-18 |
| Alan Armstrong | R | OK | Senate | 1 | 1 | 0 | $8k | 2026-03-27 |
| Dan Goldman | D | NY-10 | House | 1 | 0 | 1 | $8k | 2023-03-06 |
| Shri Thanedar | D | MI-13 | House | 1 | 0 | 1 | $33k | 2023-01-23 |
| Peter Meijer | R | MI-03 | House | 1 | 0 | 1 | $33k | 2021-02-16 |
| Chris Jacobs | R | NY-27 | House | 1 | 0 | 1 | $8k | 2021-01-04 |
| Donna Shalala | D | FL-27 | House | 1 | 0 | 1 | $8k | 2019-06-24 |
| Van Taylor | R | TX-03 | House | 1 | 0 | 1 | $8k | 2019-03-25 |
| Gary Palmer | R | AL-06 | House | 1 | 1 | 0 | $8k | 2017-04-04 |
| Cheri Bustos | D | IL-17 | House | 1 | 0 | 1 | $33k | 2017-01-30 |
| Lamar Smith | R | TX-21 | House | 1 | 1 | 0 | $8k | 2015-08-27 |
| Alan Lowenthal | D | CA-47 | House | 1 | 0 | 1 | $8k | 2015-07-23 |
*Estimated volume adds up the midpoint of each disclosed amount band (e.g. $8,000 for $1,001–$15,000). It is an estimate, not a reported figure. Chamber is the one each trade was filed with.
Are members of Congress buying or selling BIIB?
| Trade year | Trades | Buys | Sells | Members |
|---|---|---|---|---|
| 2026 | 9 | 6 | 3 | 4 |
| 2025 | 3 | 2 | 1 | 1 |
| 2023 | 2 | 0 | 2 | 2 |
| 2022 | 5 | 2 | 3 | 2 |
| 2021 | 6 | 2 | 4 | 3 |
| 2020 | 5 | 3 | 2 | 2 |
| 2019 | 4 | 0 | 4 | 4 |
| 2018 | 2 | 1 | 1 | 2 |
| 2017 | 2 | 1 | 1 | 2 |
| 2016 | 8 | 2 | 6 | 5 |
| 2015 | 12 | 10 | 2 | 7 |
| 2014 | 4 | 1 | 3 | 2 |
| 2013 | 1 | 0 | 1 | 1 |
By the year of the trade. Trades can be reported up to 45 days after they happen, so the latest months fill in as filings arrive.
How quickly were BIIB trades reported?
Days from each trade to the date its periodic transaction report was filed. The STOCK Act asks members to report a trade no later than 45 days after it happens; a later report is a matter of public record, not by itself evidence of wrongdoing. 14 trades could not be matched to a filing date and are not counted. Compare every member on the late-filing tracker.
What are the latest BIIB trades by members of Congress?
Newest 63 of 63| Trade date | Member | Type | Amount | Owner | Filed | Filing |
|---|---|---|---|---|---|---|
| 2026-09-24 | Maria Elvira Salazar · R-FL-27 · House | Partial sell | $1k – $15k | Self | 2026-10-07 · 13d | PTR |
| 2026-08-18 | Kevin Hern · R-OK-01 · House | Sell | $1k – $15k | Self | 2026-09-01 · 14d | PTR |
| 2026-06-05 | Gil Cisneros · D-CA-31 · House | Buy | $1k – $15k | Self | 2026-07-02 · 27d | PTR |
| 2026-06-02 | Maria Elvira Salazar · R-FL-27 · House | Sell | $15k – $50k | Self | 2026-07-07 · 35d | PTR |
| 2026-05-12 | Maria Elvira Salazar · R-FL-27 · House | Buy | $1k – $15k | Self | 2026-06-08 · 27d | PTR |
| 2026-05-11 | Maria Elvira Salazar · R-FL-27 · House | Buy | $1k – $15k | Self | 2026-06-08 · 28d | PTR |
| 2026-05-11 | Maria Elvira Salazar · R-FL-27 · House | Buy | $50k – $100k | Self | 2026-06-08 · 28d | PTR |
| 2026-03-27 | Alan Armstrong · R-OK · Senate | Buy | $1k – $15k | Self | 2026-07-21 · 116d | PTR |
| 2026-01-30 | Gil Cisneros · D-CA-31 · House | Buy | $1k – $15k | Self | 2026-02-13 · 14d | PTR |
| 2025-05-15 | Robert Bresnahan Jr · R-PA-08 · House | Buy | $1k – $15k | Self | 2025-06-09 · 25d | PTR |
| 2025-04-08 | Robert Bresnahan Jr · R-PA-08 · House | Sell | $1k – $15k | Self | 2025-05-08 · 30d | PTR |
| 2025-02-25 | Robert Bresnahan Jr · R-PA-08 · House | Buy | $1k – $15k | Self | 2025-03-27 · 30d | PTR |
| 2023-03-06 | Dan Goldman · D-NY-10 · House | Partial sell | $1k – $15k | Self | 2023-04-17 · 42d | PTR |
| 2023-01-23 | Shri Thanedar · D-MI-13 · House | Sell | $15k – $50k | Self | 2023-02-09 · 17d | PTR |
| 2022-08-03 | Kathy Manning · D-NC-06 · House | Sell | $1k – $15k | Joint | 2022-09-14 · 42d | PTR |
| 2022-07-20 | Kathy Manning · D-NC-06 · House | Buy | $1k – $15k | Joint | 2022-08-10 · 21d | PTR |
| 2022-03-17 | Josh Gottheimer · D-NJ-05 · House | Sell | $1k – $15k | Joint | 2022-04-17 · 31d | PTR |
| 2022-01-14 | Kathy Manning · D-NC-06 · House | Sell | $1k – $15k | Spouse | 2022-02-11 · 28d | PTR |
| 2022-01-10 | Josh Gottheimer · D-NJ-05 · House | Buy | $1k – $15k | Joint | 2022-02-18 · 39d | PTR |
| 2021-12-09 | Josh Gottheimer · D-NJ-05 · House | Partial sell | $1k – $15k | Joint | 2022-01-10 · 32d | PTR |
| 2021-10-18 | Josh Gottheimer · D-NJ-05 · House | Buy | $1k – $15k | Joint | 2021-11-15 · 28d | PTR |
| 2021-09-15 | Josh Gottheimer · D-NJ-05 · House | Partial sell | $1k – $15k | Joint | 2021-10-13 · 28d | PTR |
| 2021-06-08 | Josh Gottheimer · D-NJ-05 · House | Buy | $1k – $15k | Joint | 2021-07-15 · 37d | PTR |
| 2021-02-16 | Peter Meijer · R-MI-03 · House | Sell | $15k – $50k | Self | 2021-03-16 · 28d | PTR |
| 2021-01-04 | Chris Jacobs · R-NY-27 · House | Sell | $1k – $15k | Self | 2021-02-17 · 44d | PTR |
| 2020-12-22 | Gil Cisneros · D-CA-31 · House | Sell | $1k – $15k | Self | 2021-01-11 · 20d | PTR |
| 2020-09-16 | Gil Cisneros · D-CA-31 · House | Buy | $1k – $15k | — | 2020-10-14 · 28d | — |
| 2020-07-07 | Josh Gottheimer · D-NJ-05 · House | Buy | $1k – $15k | — | 2020-08-10 · 34d | — |
| 2020-03-18 | Gil Cisneros · D-CA-31 · House | Sell | $1k – $15k | — | 2020-04-16 · 29d | — |
| 2020-02-07 | Gil Cisneros · D-CA-31 · House | Buy | $1k – $15k | — | 2020-03-10 · 32d | — |
| 2019-06-24 | Donna Shalala · D-FL-27 · House | Sell | $1k – $15k | — | 2020-04-27 · 308d | — |
| 2019-05-09 | Gil Cisneros · D-CA-31 · House | Sell | $1k – $15k | — | 2019-06-18 · 40d | — |
| 2019-03-25 | Van Taylor · R-TX-03 · House | Sell | $1k – $15k | — | 2019-04-15 · 21d | — |
| 2019-03-22 | Sheldon Whitehouse · D-RI · Senate | Sell-- | $1k – $15k | — | — | PTR |
| 2018-05-02 | Tom MacArthur · R-NJ-03 · House | Buy | $1k – $15k | — | 2018-06-05 · 34d | — |
| 2018-01-08 | Sheldon Whitehouse · D-RI · Senate | Sell-- | $1k – $15k | — | — | PTR |
| 2017-04-04 | Gary Palmer · R-AL-06 · House | Buy | $1k – $15k | — | 2018-09-29 · 543d | — |
| 2017-01-30 | Cheri Bustos · D-IL-17 · House | Sell | $15k – $50k | — | 2017-02-09 · 10d | — |
| 2016-12-23 | Sheldon Whitehouse · D-RI · Senate | Partial sell-- | $1k – $15k | — | — | PTR |
| 2016-12-13 | Sheldon Whitehouse · D-RI · Senate | Sell-- | $15k – $50k | — | — | PTR |
| 2016-12-08 | Tom MacArthur · R-NJ-03 · House | Buy | $1k – $15k | — | 2017-01-07 · 30d | — |
| 2016-07-21 | Jim Inhofe · R-OK · Senate | Sell-- | $50k – $100k | — | — | PTR |
| 2016-06-03 | Ed Whitfield · R-KY-01 · House | Sell | $1k – $15k | — | 2016-07-15 · 42d | — |
| 2016-04-13 | Ed Whitfield · R-KY-01 · House | Sell | $1k – $15k | — | 2016-05-10 · 27d | — |
| 2016-04-01 | Mike Conaway · R-TX-11 · House | Sell | $1k – $15k | — | 2016-05-24 · 53d | — |
| 2016-01-19 | Ed Whitfield · R-KY-01 · House | Buy | $1k – $15k | — | 2016-02-02 · 14d | — |
| 2015-09-22 | Tom MacArthur · R-NJ-03 · House | Buy | $1k – $15k | — | 2015-10-08 · 16d | — |
| 2015-08-28 | Sheldon Whitehouse · D-RI · Senate | Buy-- | $1k – $15k | — | — | PTR |
| 2015-08-27 | Lamar Smith · R-TX-21 · House | Buy | $1k – $15k | — | 2015-09-16 · 20d | — |
| 2015-08-21 | Rubén Hinojosa · D-TX-15 · House | Sell | $1k – $15k | — | 2015-08-31 · 10d | — |
| 2015-08-10 | Sheldon Whitehouse · D-RI · Senate | Buy-- | $1k – $15k | — | — | PTR |
| 2015-08-04 | Sheldon Whitehouse · D-RI · Senate | Buy-- | $1k – $15k | — | — | PTR |
| 2015-07-23 | Alan Lowenthal · D-CA-47 · House | Sell | $1k – $15k | — | 2015-07-25 · 2d | — |
| 2015-07-10 | Sheldon Whitehouse · D-RI · Senate | Buy-- | $1k – $15k | — | — | PTR |
| 2015-07-09 | Jim Inhofe · R-OK · Senate | Buy-- | $15k – $50k | — | — | PTR |
| 2015-05-07 | Sheldon Whitehouse · D-RI · Senate | Buy-- | $15k – $50k | — | — | PTR |
| 2015-04-07 | Sheldon Whitehouse · D-RI · Senate | Buy-- | $1k – $15k | — | — | PTR |
| 2015-02-09 | Mike Conaway · R-TX-11 · House | Buy | $1k – $15k | — | 2015-03-03 · 22d | — |
| 2014-07-23 | Susan Collins · R-ME · Senate | Sell-- | $1k – $15k | — | — | PTR |
| 2014-03-27 | Susan Collins · R-ME · Senate | Partial sell-- | $1k – $15k | — | — | PTR |
| 2014-02-27 | Rubén Hinojosa · D-TX-15 · House | Sell | $1k – $15k | — | 2014-03-03 · 4d | — |
| 2014-01-24 | Rubén Hinojosa · D-TX-15 · House | Buy | $1k – $15k | — | 2014-02-04 · 11d | — |
| 2013-12-20 | Rubén Hinojosa · D-TX-15 · House | Sell | $1k – $15k | — | 2014-01-07 · 18d | — |
Days after the filing date count from the trade to the report; a highlighted figure is past the 45-day deadline.
What do these records cover?
House trades come from the official House Clerk filings from 2021 on; earlier House rows come from an archive of the same reports. Senate trades come from the Senate eFD filings (15 of the 63 trades here). Scanned paper filings are not itemised, so their trades are not counted.
These are trades reported on periodic transaction reports, not current holdings: a member who bought BIIB may have sold it since, and a position bought before the records start, or held through a fund, does not show here. Amounts are disclosed as bands. This page is educational and is not a recommendation to buy or sell BIIB.
BIIB Congress trades: questions answered from the filings
Which members of Congress have traded Biogen (BIIB) stock?
24 members of Congress disclosed 63 trades in BIIB between Dec 20, 2013 and Sep 24, 2026. The most active were Sheldon Whitehouse (D-RI, 10 trades), Gil Cisneros (D-CA-31, 7 trades) and Josh Gottheimer (D-NJ-05, 7 trades).
Are members of Congress buying or selling BIIB?
Across every disclosed trade, 30 were purchases and 33 were full or partial sales. In the 12 months since Oct 26, 2025, 4 members disclosed 6 purchases and 3 sales.
Who was the latest member of Congress to trade BIIB?
Maria Elvira Salazar (R-FL-27) disclosed a partial sale of $1k – $15k dated Sep 24, 2026, reported on Oct 7, 2026 (13 days later). The earliest BIIB trade in these records is Rubén Hinojosa's sale on Dec 20, 2013.
How much BIIB stock have members of Congress bought and sold?
Periodic transaction reports give an amount band, not an exact value. Taking the midpoint of each band, disclosed purchases add up to about $356k and sales to about $454k; this is an estimate. The largest single disclosed trade was Maria Elvira Salazar's purchase of $50k – $100k on May 11, 2026.
How long did members of Congress take to report BIIB trades?
Of the 49 BIIB trades matched to a filing date, the median was reported 28 days after the trade and 90% within 44 days. 4 were filed after the STOCK Act's 45-day deadline, the longest 543 days after the trade.
Do Democrats or Republicans trade BIIB more?
10 Democrats disclosed 36 BIIB trades and 14 Republicans disclosed 27 trades. Democrats account for more of the trades.
Source: periodic transaction reports filed under the STOCK Act with the House Clerk and the Senate. See Biogen’s BIIB stock page for insider, 13F and company data, the stocks Congress members are buying, the most active traders in Congress and how we collect this.