Which Members of Congress Traded Boston Scientific (BSX)?
15 members of Congress have disclosed 73 trades in Boston Scientific (BSX) stock between Mar 18, 2015 and Sep 9, 2026: 32 purchases and 41 full or partial sales. In the last 12 months, 3 members disclosed 9 purchases and 9 sales. The latest is Kevin Hern’s sale of $50k – $100k on Sep 9, 2026.
Of the 60 trades whose filing names the account owner, 14 werein a spouse’s account and 12 in a joint account.
House PTR filings as of Oct 20, 2026
Senate PTR filings as of Nov 30, 2020 · archive; later Senate trades are not included yet
Who are the members of Congress trading BSX?
15 members| Member | Party | State | Chamber | Trades | Buys | Sells | Est. volume* | Latest |
|---|---|---|---|---|---|---|---|---|
| Gil Cisneros | D | CA-31 | House | 18 | 9 | 9 | $144k | 2026-08-18 |
| Alan Lowenthal | D | CA-47 | House | 15 | 8 | 7 | $132k | 2022-10-24 |
| Lois Frankel | D | FL-22 | House | 9 | 3 | 6 | $72k | 2023-09-08 |
| Kevin Hern | R | OK-01 | House | 8 | 3 | 5 | $439k | 2026-09-09 |
| Lisa McClain | R | MI-09 | House | 5 | 2 | 3 | $40k | 2025-10-31 |
| John Curtis | R | UT | House | 5 | 2 | 3 | $40k | 2023-12-04 |
| Val Hoyle | D | OR-04 | House | 2 | 1 | 1 | $16k | 2025-09-23 |
| Bruce Westerman | R | AR-04 | House | 2 | 1 | 1 | $16k | 2025-04-21 |
| Rob Wittman | R | VA-01 | House | 2 | 1 | 1 | $16k | 2021-12-16 |
| Dean Phillips | D | MN-03 | House | 2 | 1 | 1 | $16k | 2020-12-18 |
| Jefferson Shreve | R | IN-06 | House | 1 | 0 | 1 | $33k | 2025-05-12 |
| Peter Meijer | R | MI-03 | House | 1 | 0 | 1 | $8k | 2021-02-16 |
| Mo Brooks | R | AL-05 | House | 1 | 0 | 1 | $8k | 2020-02-05 |
| Susie Lee | D | NV-03 | House | 1 | 0 | 1 | $8k | 2019-04-25 |
| Mike Conaway | R | TX-11 | House | 1 | 1 | 0 | $8k | 2015-03-18 |
*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 BSX?
| Trade year | Trades | Buys | Sells | Members |
|---|---|---|---|---|
| 2026 | 12 | 7 | 5 | 2 |
| 2025 | 19 | 4 | 15 | 6 |
| 2024 | 2 | 2 | 0 | 2 |
| 2023 | 9 | 1 | 8 | 2 |
| 2022 | 3 | 1 | 2 | 2 |
| 2021 | 14 | 10 | 4 | 5 |
| 2020 | 9 | 4 | 5 | 6 |
| 2019 | 1 | 0 | 1 | 1 |
| 2018 | 1 | 1 | 0 | 1 |
| 2017 | 2 | 1 | 1 | 2 |
| 2015 | 1 | 1 | 0 | 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 BSX 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. Compare every member on the late-filing tracker.
What are the latest BSX trades by members of Congress?
Newest 73 of 73| Trade date | Member | Type | Amount | Owner | Filed | Filing |
|---|---|---|---|---|---|---|
| 2026-09-09 | Kevin Hern · R-OK-01 · House | Sell | $50k – $100k | Joint | 2026-09-25 · 16d | PTR |
| 2026-09-04 | Kevin Hern · R-OK-01 · House | Partial sell | $50k – $100k | Joint | 2026-09-25 · 21d | PTR |
| 2026-09-03 | Kevin Hern · R-OK-01 · House | Sell | $1k – $15k | Child | 2026-09-25 · 22d | PTR |
| 2026-08-31 | Kevin Hern · R-OK-01 · House | Sell | $15k – $50k | Joint | 2026-09-25 · 25d | PTR |
| 2026-08-18 | Gil Cisneros · D-CA-31 · House | Buy | $1k – $15k | Self | 2026-09-10 · 23d | PTR |
| 2026-06-05 | Gil Cisneros · D-CA-31 · House | Buy | $1k – $15k | Self | 2026-07-02 · 27d | PTR |
| 2026-06-05 | Gil Cisneros · D-CA-31 · House | Partial sell | $1k – $15k | Self | 2026-07-02 · 27d | PTR |
| 2026-05-29 | Gil Cisneros · D-CA-31 · House | Buy | $1k – $15k | Self | 2026-06-08 · 10d | PTR |
| 2026-05-19 | Gil Cisneros · D-CA-31 · House | Buy | $1k – $15k | Self | 2026-06-08 · 20d | PTR |
| 2026-05-11 | Gil Cisneros · D-CA-31 · House | Buy | $1k – $15k | Self | 2026-06-08 · 28d | PTR |
| 2026-02-10 | Gil Cisneros · D-CA-31 · House | Buy | $1k – $15k | Self | 2026-03-09 · 27d | PTR |
| 2026-01-30 | Gil Cisneros · D-CA-31 · House | Buy | $1k – $15k | Self | 2026-02-13 · 14d | PTR |
| 2025-12-24 | Gil Cisneros · D-CA-31 · House | Partial sell | $1k – $15k | Self | 2026-01-12 · 19d | PTR |
| 2025-11-18 | Gil Cisneros · D-CA-31 · House | Buy | $1k – $15k | Self | 2025-12-15 · 27d | PTR |
| 2025-10-31 | Lisa McClain · R-MI-09 · House | Sell | $1k – $15k | Spouse | 2025-11-21 · 21d | PTR |
| 2025-10-30 | Lisa McClain · R-MI-09 · House | Sell | $1k – $15k | Spouse | 2025-11-21 · 22d | PTR |
| 2025-10-30 | Lisa McClain · R-MI-09 · House | Buy | $1k – $15k | Spouse | 2025-11-21 · 22d | PTR |
| 2025-10-28 | Kevin Hern · R-OK-01 · House | Partial sell | $15k – $50k | Joint | 2025-11-16 · 19d | PTR |
| 2025-10-17 | Gil Cisneros · D-CA-31 · House | Buy | $1k – $15k | Self | 2025-11-18 · 32d | PTR |
| 2025-09-23 | Val Hoyle · D-OR-04 · House | Sell | $1k – $15k | Spouse | 2025-10-10 · 17d | PTR |
| 2025-08-04 | Lisa McClain · R-MI-09 · House | Partial sell | $1k – $15k | Spouse | 2025-09-12 · 39d | PTR |
| 2025-07-31 | Gil Cisneros · D-CA-31 · House | Partial sell | $1k – $15k | Self | 2025-08-14 · 14d | PTR |
| 2025-06-26 | Gil Cisneros · D-CA-31 · House | Partial sell | $1k – $15k | Self | 2025-07-10 · 14d | PTR |
| 2025-06-11 | Gil Cisneros · D-CA-31 · House | Partial sell | $1k – $15k | Self | 2025-07-10 · 29d | PTR |
| 2025-05-13 | Gil Cisneros · D-CA-31 · House | Partial sell | $1k – $15k | Self | 2025-06-06 · 24d | PTR |
| 2025-05-12 | Jefferson Shreve · R-IN-06 · House | SellAccount Closing | $15k – $50k | Self | 2025-06-22 · 41d | PTR |
| 2025-04-28 | Gil Cisneros · D-CA-31 · House | Partial sell | $1k – $15k | Self | 2025-05-06 · 8d | PTR |
| 2025-04-21 | Bruce Westerman · R-AR-04 · House | Sell | $1k – $15k | Self | 2025-05-12 · 21d | PTR |
| 2025-03-17 | Gil Cisneros · D-CA-31 · House | Partial sell | $1k – $15k | Self | 2025-04-07 · 21d | PTR |
| 2025-03-03 | Bruce Westerman · R-AR-04 · House | Buy | $1k – $15k | Self | 2025-04-16 · 44d | PTR |
| 2025-02-24 | Gil Cisneros · D-CA-31 · House | Partial sell | $1k – $15k | Self | 2025-03-06 · 10d | PTR |
| 2024-12-11 | Lisa McClain · R-MI-09 · House | Buy | $1k – $15k | Spouse | 2025-08-13 · 245d | PTR |
| 2024-10-29 | Val Hoyle · D-OR-04 · House | Buy | $1k – $15k | Spouse | 2025-09-12 · 318d | PTR |
| 2023-12-04 | John Curtis · R-UT · House | Sell | $1k – $15k | Joint | 2023-12-15 · 11d | PTR |
| 2023-09-08 | Lois Frankel · D-FL-22 · House | Sell | $1k – $15k | Self | 2023-10-10 · 32d | PTR |
| 2023-05-31 | Lois Frankel · D-FL-22 · House | Partial sell | $1k – $15k | Self | 2023-06-24 · 24d | PTR |
| 2023-05-30 | Lois Frankel · D-FL-22 · House | Buy | $1k – $15k | Self | 2023-06-24 · 25d | PTR |
| 2023-05-01 | Lois Frankel · D-FL-22 · House | Partial sell | $1k – $15k | Self | 2023-05-19 · 18d | PTR |
| 2023-04-26 | John Curtis · R-UT · House | Partial sell | $1k – $15k | Joint | 2023-05-10 · 14d | PTR |
| 2023-04-19 | Lois Frankel · D-FL-22 · House | Partial sell | $1k – $15k | Self | 2023-05-19 · 30d | PTR |
| 2023-03-29 | Lois Frankel · D-FL-22 · House | Partial sell | $1k – $15k | Self | 2023-04-28 · 30d | PTR |
| 2023-02-23 | John Curtis · R-UT · House | Partial sell | $1k – $15k | Joint | 2023-03-13 · 18d | PTR |
| 2022-10-24 | Alan Lowenthal · D-CA-47 · House | Sell | $1k – $15k | Spouse | 2022-11-05 · 12d | PTR |
| 2022-10-21 | Alan Lowenthal · D-CA-47 · House | Partial sell | $1k – $15k | Joint | 2022-10-29 · 8d | PTR |
| 2022-09-28 | Lois Frankel · D-FL-22 · House | Buy | $1k – $15k | Self | 2022-10-24 · 26d | PTR |
| 2021-12-16 | Rob Wittman · R-VA-01 · House | Sell | $1k – $15k | Self | 2022-01-09 · 24d | PTR |
| 2021-08-06 | Alan Lowenthal · D-CA-47 · House | Partial sell | $1k – $15k | Spouse | 2021-08-12 · 6d | PTR |
| 2021-08-03 | Alan Lowenthal · D-CA-47 · House | Partial sell | $1k – $15k | Spouse | 2021-08-12 · 9d | PTR |
| 2021-07-21 | Kevin Hern · R-OK-01 · House | Buy | $15k – $50k | Joint | 2021-09-15 · 56d | PTR |
| 2021-07-01 | Kevin Hern · R-OK-01 · House | Buy | $100k – $250k | Joint | 2021-09-15 · 76d | PTR |
| 2021-06-22 | John Curtis · R-UT · House | Buy | $1k – $15k | Self | 2021-07-06 · 14d | PTR |
| 2021-05-20 | Kevin Hern · R-OK-01 · House | Buy | $1k – $15k | Child | 2021-06-15 · 26d | PTR |
| 2021-02-16 | Peter Meijer · R-MI-03 · House | Sell | $1k – $15k | Self | 2021-03-16 · 28d | PTR |
| 2021-02-02 | Alan Lowenthal · D-CA-47 · House | Buy | $624 | Joint | 2021-02-10 · 8d | PTR |
| 2021-02-02 | Alan Lowenthal · D-CA-47 · House | Buy | $331 | Spouse | 2021-02-10 · 8d | PTR |
| 2021-02-02 | Alan Lowenthal · D-CA-47 · House | Buy | $1k – $15k | Spouse | 2021-02-10 · 8d | PTR |
| 2021-02-01 | Alan Lowenthal · D-CA-47 · House | Buy | $861 | Spouse | 2021-02-10 · 9d | PTR |
| 2021-02-01 | Alan Lowenthal · D-CA-47 · House | Buy | $15k – $50k | Spouse | 2021-02-10 · 9d | PTR |
| 2021-02-01 | Alan Lowenthal · D-CA-47 · House | Buy | $1k – $15k | Joint | 2021-02-10 · 9d | PTR |
| 2020-12-18 | Dean Phillips · D-MN-03 · House | Partial sell | $1k – $15k | Self | 2021-01-09 · 22d | PTR |
| 2020-10-02 | Rob Wittman · R-VA-01 · House | Buy | $1k – $15k | — | 2020-11-19 · 48d | — |
| 2020-08-10 | Dean Phillips · D-MN-03 · House | Buy | $1k – $15k | — | 2020-09-11 · 32d | — |
| 2020-03-27 | John Curtis · R-UT · House | Buy | $1k – $15k | — | 2020-04-09 · 13d | — |
| 2020-03-19 | Alan Lowenthal · D-CA-47 · House | Sell | $461 | — | 2020-03-24 · 5d | — |
| 2020-03-19 | Alan Lowenthal · D-CA-47 · House | Sell | $1k – $15k | — | 2020-03-24 · 5d | — |
| 2020-03-18 | Lois Frankel · D-FL-22 · House | Buy | $1k – $15k | — | 2020-04-27 · 40d | — |
| 2020-03-11 | Alan Lowenthal · D-CA-47 · House | Sell | $1k – $15k | — | 2020-03-17 · 6d | — |
| 2020-02-05 | Mo Brooks · R-AL-05 · House | Sell | $1k – $15k | — | 2020-03-24 · 48d | — |
| 2019-04-25 | Susie Lee · D-NV-03 · House | Sell | $1k – $15k | — | 2019-05-09 · 14d | — |
| 2018-01-22 | Alan Lowenthal · D-CA-47 · House | Buy | $963 | — | 2018-02-04 · 13d | — |
| 2017-12-14 | Alan Lowenthal · D-CA-47 · House | Buy | $15k – $50k | — | 2017-12-28 · 14d | — |
| 2017-02-01 | Lois Frankel · D-FL-22 · House | Sell | $1k – $15k | — | 2017-03-13 · 40d | — |
| 2015-03-18 | Mike Conaway · R-TX-11 · House | Buy | $1k – $15k | — | 2015-04-05 · 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 an archive that ends on Nov 30, 2020. Senators’ BSX trades after that date are not included until the Senate eFD import is live, so this page undercounts Senate activity since then (0 of the 73 trades here are Senate filings). 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 BSX 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 BSX.
BSX Congress trades: questions answered from the filings
Which members of Congress have traded Boston Scientific (BSX) stock?
15 members of Congress disclosed 73 trades in BSX between Mar 18, 2015 and Sep 9, 2026. The most active were Gil Cisneros (D-CA-31, 18 trades), Alan Lowenthal (D-CA-47, 15 trades) and Lois Frankel (D-FL-22, 9 trades). Senate trades after Nov 30, 2020 are not in these records yet.
Are members of Congress buying or selling BSX?
Across every disclosed trade, 32 were purchases and 41 were full or partial sales. In the 12 months since Oct 22, 2025, 3 members disclosed 9 purchases and 9 sales.
Who was the latest member of Congress to trade BSX?
Kevin Hern (R-OK-01) disclosed a sale of $50k – $100k dated Sep 9, 2026, reported on Sep 25, 2026 (16 days later). The earliest BSX trade in these records is Mike Conaway's purchase on Mar 18, 2015.
How much BSX 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 $467k and sales to about $528k; this is an estimate. The largest single disclosed trade was Kevin Hern's purchase of $100k – $250k on Jul 1, 2021.
How long did members of Congress take to report BSX trades?
Of the 73 BSX trades matched to a filing date, the median was reported 21 days after the trade and 90% within 41 days. 6 were filed after the STOCK Act's 45-day deadline, the longest 318 days after the trade.
Do Democrats or Republicans trade BSX more?
6 Democrats disclosed 47 BSX trades and 9 Republicans disclosed 26 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 Boston Scientific’s BSX 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.