Congress WatchBSX stock trades by members of Congress
Boston Scientific Corporation Common Stock: 19 members of Congress disclosed 97 transactions between 2015-04-05 and 2026-09-25, 42 purchases and 55 sales.
97transactions
42purchases
55sales
19politicians
Activity by year
Transactions by the year the report was filed.
BSX price and Congress trades
Daily closing price (split-adjusted). Dots mark days members of Congress filed trades in BSX: green when more were purchases, red when more were sales. Use + and − (or Ctrl/⌘ + scroll) to zoom and drag to pan. Hover a month in the heatmap below to highlight it here, or click it to zoom to that month.
Congress buying and selling by month
Purchases and sales of BSX reported by members of the House and Senate.
Green months had more purchases, red months more sales, teal an even split; darker means more trades. Months are by filing date. Senate filings after August 2026 and scanned House filings are not fully covered, so early years can look quieter than they were.
Who traded BSX
| Politician | Trades | Buys | Sales | Last filing |
|---|---|---|---|---|
| Alan S. Lowenthal | 20 | 8 | 12 | 2022-11-05 |
| Gilbert Cisneros | 19 | 10 | 9 | 2026-09-10 |
| Lois Frankel | 13 | 5 | 8 | 2023-10-10 |
| Kevin Hern | 10 | 5 | 5 | 2026-09-25 |
| John Curtis | 5 | 2 | 3 | 2023-12-15 |
| Lisa McClain | 5 | 2 | 3 | 2025-11-21 |
| Josh Gottheimer | 4 | 0 | 4 | 2020-05-13 |
| John Boozman | 3 | 1 | 2 | 2026-07-13 |
| Markwayne Mullin | 3 | 3 | 0 | 2026-01-16 |
| Bruce Westerman | 2 | 1 | 1 | 2025-05-12 |
| Robert J. Wittman | 2 | 1 | 1 | 2022-01-09 |
| Valerie Hoyle | 2 | 1 | 1 | 2025-10-10 |
| Dean Phillips | 2 | 1 | 1 | 2021-01-09 |
| K. Michael Conaway | 2 | 1 | 1 | 2016-10-12 |
| Mo Brooks | 1 | 0 | 1 | 2020-03-24 |
| Peter Meijer | 1 | 0 | 1 | 2021-03-16 |
| Jefferson Shreve | 1 | 0 | 1 | 2025-06-22 |
| Alan Armstrong | 1 | 1 | 0 | 2026-07-21 |
| Susie Lee | 1 | 0 | 1 | 2019-05-09 |
Disclosed transactions
Download all transactions as CSV
| Filed | Traded | Politician | Type | Amount | Filing |
|---|---|---|---|---|---|
| 2026-09-25 | 2026-09-04 | Kevin Hern | Partial sale | $50,001 - $100,000 | Source |
| 2026-09-25 | 2026-09-09 | Kevin Hern | Sale | $50,001 - $100,000 | Source |
| 2026-09-25 | 2026-08-31 | Kevin Hern | Sale | $15,001 - $50,000 | Source |
| 2026-09-25 | 2026-09-03 | Kevin Hern | Sale | $1,001 - $15,000 | Source |
| 2026-09-10 | 2026-08-18 | Gilbert Cisneros | Buy | $1,001 - $15,000 | Source |
| 2026-07-21 | 2026-03-27 | Alan Armstrong | Buy | $1,001 - $15,000 | Source |
| 2026-07-13 | 2026-06-04 | John Boozman | Partial sale | $1,001 - $15,000 | Source |
| 2026-07-02 | 2026-06-05 | Gilbert Cisneros | Partial sale | $1,001 - $15,000 | Source |
| 2026-07-02 | 2026-06-05 | Gilbert Cisneros | Buy | $1,001 - $15,000 | Source |
| 2026-06-08 | 2026-05-11 | Gilbert Cisneros | Buy | $1,001 - $15,000 | Source |
| 2026-06-08 | 2026-05-19 | Gilbert Cisneros | Buy | $1,001 - $15,000 | Source |
| 2026-06-08 | 2026-05-29 | Gilbert Cisneros | Buy | $1,001 - $15,000 | Source |
| 2026-03-09 | 2026-02-10 | Gilbert Cisneros | Buy | $1,001 - $15,000 | Source |
| 2026-02-13 | 2026-01-30 | Gilbert Cisneros | Buy | $1,001 - $15,000 | Source |
| 2026-01-16 | 2025-12-29 | Markwayne Mullin | Buy | $15,001 - $50,000 | Source |
| 2026-01-13 | 2025-12-17 | John Boozman | Partial sale | $1,001 - $15,000 | Source |
| 2026-01-12 | 2025-12-24 | Gilbert Cisneros | Partial sale | $1,001 - $15,000 | Source |
| 2025-12-15 | 2025-11-18 | Gilbert Cisneros | Buy | $1,001 - $15,000 | Source |
| 2025-11-21 | 2025-10-31 | Lisa McClain | Sale | $1,001 - $15,000 | Source |
| 2025-11-21 | 2025-10-30 | Lisa McClain | Sale | $1,001 - $15,000 | Source |
| 2025-11-21 | 2025-10-30 | Lisa McClain | Buy | $1,001 - $15,000 | Source |
| 2025-11-18 | 2025-10-17 | Gilbert Cisneros | Buy | $1,001 - $15,000 | Source |
| 2025-11-16 | 2025-10-28 | Kevin Hern | Partial sale | $15,001 - $50,000 | Source |
| 2025-10-10 | 2025-09-23 | Valerie Hoyle | Sale | $1,001 - $15,000 | Source |
| 2025-09-12 | 2024-10-29 | Valerie Hoyle | Buy | $1,001 - $15,000 | Source |
| 2025-09-12 | 2025-08-04 | Lisa McClain | Partial sale | $1,001 - $15,000 | Source |
| 2025-08-14 | 2025-07-31 | Gilbert Cisneros | Partial sale | $1,001 - $15,000 | Source |
| 2025-08-13 | 2024-12-11 | Lisa McClain | Buy | $1,001 - $15,000 | Source |
| 2025-07-10 | 2025-06-26 | Gilbert Cisneros | Partial sale | $1,001 - $15,000 | Source |
| 2025-07-10 | 2025-06-11 | Gilbert Cisneros | Partial sale | $1,001 - $15,000 | Source |
| 2025-06-22 | 2025-05-12 | Jefferson Shreve | Sale | $15,001 - $50,000 | Source |
| 2025-06-06 | 2025-05-13 | Gilbert Cisneros | Partial sale | $1,001 - $15,000 | Source |
| 2025-05-12 | 2025-04-21 | Bruce Westerman | Sale | $1,001 - $15,000 | Source |
| 2025-05-06 | 2025-04-28 | Gilbert Cisneros | Partial sale | $1,001 - $15,000 | Source |
| 2025-04-16 | 2025-03-03 | Bruce Westerman | Buy | $1,001 - $15,000 | Source |
| 2025-04-07 | 2025-03-17 | Gilbert Cisneros | Partial sale | $1,001 - $15,000 | Source |
| 2025-03-06 | 2025-02-24 | Gilbert Cisneros | Partial sale | $1,001 - $15,000 | Source |
| 2025-03-06 | 2025-02-13 | John Boozman | Buy | $1,001 - $15,000 | Source |
| 2023-12-15 | 2023-12-04 | John Curtis | Sale | $1,001 - $15,000 | Source |
| 2023-11-01 | 2023-10-03 | Markwayne Mullin | Buy | $1,001 - $15,000 | Source |
| 2023-10-12 | 2023-09-13 | Markwayne Mullin | Buy | $15,001 - $50,000 | Source |
| 2023-10-10 | 2023-09-08 | Lois Frankel | Sale | $1,001 - $15,000 | Source |
| 2023-10-10 | 2023-09-08 | Lois Frankel | Sale | $1,001 - $15,000 | Source |
| 2023-06-24 | 2023-05-31 | Lois Frankel | Partial sale | $1,001 - $15,000 | Source |
| 2023-06-24 | 2023-05-30 | Lois Frankel | Buy | $1,001 - $15,000 | Source |
| 2023-05-19 | 2023-05-01 | Lois Frankel | Partial sale | $1,001 - $15,000 | Source |
| 2023-05-19 | 2023-04-19 | Lois Frankel | Partial sale | $1,001 - $15,000 | Source |
| 2023-05-10 | 2023-04-26 | John Curtis | Partial sale | $1,001 - $15,000 | Source |
| 2023-04-28 | 2023-03-29 | Lois Frankel | Partial sale | $1,001 - $15,000 | Source |
| 2023-03-13 | 2023-02-23 | John Curtis | Partial sale | $1,001 - $15,000 | Source |
| 2022-11-05 | 2022-10-24 | Alan S. Lowenthal | Sale | $1,001 - $15,000 | Source |
| 2022-10-29 | 2022-10-21 | Alan S. Lowenthal | Partial sale | $1,001 - $15,000 | Source |
| 2022-10-29 | 2022-10-21 | Alan S. Lowenthal | Partial sale | $1,001 - $15,000 | Source |
| 2022-10-24 | 2022-09-28 | Lois Frankel | Buy | $1,001 - $15,000 | Source |
| 2022-01-09 | 2021-12-16 | Robert J. Wittman | Sale | $1,001 - $15,000 f | Source |
| 2021-09-15 | 2021-07-21 | Kevin Hern | Buy | $15,001 - c $50,000 | Source |
| 2021-09-15 | 2021-07-01 | Kevin Hern | Buy | $100,001 - c $250,000 | Source |
| 2021-08-12 | 2021-08-03 | Alan S. Lowenthal | Partial sale | $1,001 - $15,000 g | Source |
| 2021-08-12 | 2021-08-03 | Alan S. Lowenthal | Partial sale | $1,001 - $15,000 e | Source |
| 2021-08-12 | 2021-08-03 | Alan S. Lowenthal | Partial sale | $1,001 - $15,000 c | Source |
| 2021-08-12 | 2021-08-06 | Alan S. Lowenthal | Partial sale | $1,001 - $15,000 b | Source |
| 2021-08-12 | 2021-08-03 | Alan S. Lowenthal | Partial sale | $1,001 - $15,000 b | Source |
| 2021-07-06 | 2021-06-22 | John Curtis | Buy | $1,001 - $15,000 g | Source |
| 2021-06-15 | 2021-05-20 | Kevin Hern | Buy | $1,001 - $15,000 g | Source |
| 2021-06-15 | 2021-05-20 | Kevin Hern | Buy | $1,001 - $15,000 g | Source |
| 2021-06-15 | 2021-05-20 | Kevin Hern | Buy | $1,001 - $15,000 c | Source |
| 2021-03-16 | 2021-02-16 | Peter Meijer | Sale | $1,001 - $15,000 e | Source |
| 2021-02-10 | 2021-02-01 | Alan S. Lowenthal | Buy | $860.95 e | Source |
| 2021-02-10 | 2021-02-02 | Alan S. Lowenthal | Buy | $624.29 f | Source |
| 2021-02-10 | 2021-02-02 | Alan S. Lowenthal | Buy | $330.51 e | Source |
| 2021-02-10 | 2021-02-01 | Alan S. Lowenthal | Buy | $15,001 - e $50,000 | Source |
| 2021-02-10 | 2021-02-01 | Alan S. Lowenthal | Buy | $1,001 - $15,000 e | Source |
| 2021-02-10 | 2021-02-02 | Alan S. Lowenthal | Buy | $1,001 - $15,000 d | Source |
| 2021-01-09 | 2020-12-18 | Dean Phillips | Partial sale | $1,001 - $15,000 g | Source |
| 2020-11-24 | 2020-10-21 | Lois Frankel | Buy | $1,001 - $15,000 c | Source |
| 2020-11-19 | 2020-10-02 | Robert J. Wittman | Buy | $1,001 - $15,000 f | Source |
| 2020-09-11 | 2020-08-10 | Dean Phillips | Buy | $1,001 - $15,000 c | Source |
| 2020-05-13 | 2020-04-14 | Josh Gottheimer | Sale | $1,001 - $15,000 f | Source |
| 2020-05-13 | 2020-04-09 | Josh Gottheimer | Partial sale | $1,001 - $15,000 e | Source |
| 2020-04-28 | 2020-03-13 | Alan S. Lowenthal | Partial sale | $614.21 e | Source |
| 2020-04-27 | 2020-03-18 | Lois Frankel | Buy | $1,001 - $15,000 g | Source |
| 2020-04-27 | 2020-03-26 | Lois Frankel | Buy | $1,001 - $15,000 c | Source |
| 2020-04-16 | 2020-03-18 | Gilbert Cisneros | Buy | $1,001 - $15,000 d | Source |
| 2020-04-09 | 2020-03-27 | John Curtis | Buy | $1,001 - $15,000 c | Source |
| 2020-03-24 | 2020-03-19 | Alan S. Lowenthal | Sale | $460.82 c | Source |
| 2020-03-24 | 2020-02-05 | Mo Brooks | Sale | $1,001 - $15,000 c | Source |
| 2020-03-24 | 2020-03-19 | Alan S. Lowenthal | Sale | $1,001 - $15,000 c | Source |
| 2020-03-17 | 2020-03-11 | Alan S. Lowenthal | Sale | $1,001 - $15,000 f | Source |
| 2020-03-16 | 2020-02-27 | Josh Gottheimer | Partial sale | $1,001 - $15,000 f | Source |
| 2019-09-03 | 2019-07-30 | Lois Frankel | Partial sale | $1,001 - $15,000 c | Source |
| 2019-05-09 | 2019-04-25 | Susie Lee | Sale | $1,001 - $15,000 f | Source |
| 2018-08-13 | 2017-04-20 | Josh Gottheimer | Partial sale | $1,001 - $15,000 c | Source |
| 2018-02-04 | 2018-01-22 | Alan S. Lowenthal | Buy | $962.57 | Source |
| 2017-12-28 | 2017-12-14 | Alan S. Lowenthal | Buy | $15,001 - $50,000 | Source |
| 2017-03-13 | 2017-02-01 | Lois Frankel | Sale | $1,001 - $15,000 | Source |
| 2016-10-12 | 2016-09-12 | K. Michael Conaway | Sale | $1,001 - $15,000 | Source |
| 2015-04-05 | 2015-03-18 | K. Michael Conaway | Buy | $1,001 - $15,000 | Source |
Stocks traded by the same politicians
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- AMZN Amazon.com, Inc. - Common Stock, 16 shared
- COST Costco Wholesale Corporation - Common Stock, 16 shared
- HD Home Depot, Inc., 16 shared
- MSFT Microsoft Corporation - Common Stock, 16 shared
- UNH UnitedHealth Group Incorporated Common Stock, 16 shared
- UNP Union Pacific Corporation Common Stock, 16 shared
- CMCSA Comcast Corporation - Class A Common Stock, 15 shared
- JNJ Johnson & Johnson Common Stock, 15 shared
Common questions
- Are members of Congress buying or selling BSX?
- 19 members of Congress disclosed 97 transactions in Boston Scientific Corporation Common Stock (BSX) between 2015-04-05 and 2026-09-25: 42 purchases and 55 sales.
- How active was Congress in BSX recently?
- In 2026 filings, 17 transactions in BSX were disclosed: 9 purchases and 8 sales.
- Which members of Congress trade BSX?
- The most active in BSX are Alan S. Lowenthal (20), Gilbert Cisneros (19) and Lois Frankel (13), by number of disclosed transactions. 19 members in all have traded it.