Congress Trades in Boston Scientific Corporation (BSX)
14 members of Congress have disclosed trading BSX.
14 members of Congress have disclosed trading Boston Scientific Corporation (BSX), with 36 transactions in total — 22 purchases and 14 sales worth an estimated $289,738 at range midpoints, leaning toward buying. The most active BSX trader is Alan S. Lowenthal (12 disclosures). The most recent disclosed BSX trade was on May 29, 2026. Across the 6 disclosed BSX purchases we can price, the average return since disclosure is −25.8% (information only, not advice). See our full BSX fundamentals page for price, valuation and a return calculator.
Corporate insiders in BSX
It's not just Congress — here's what BSX's own executives and directors have done with the stock recently, from SEC Form 4 filings.
| Date | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| May 20, 2026 | Pegus Cheryl | Director | Buy | 1,770 | $99,987 |
| May 20, 2026 | Ludwig Edward J | Director | Buy | 3,580 | $202,914 |
| May 20, 2026 | Habiger David C | Director | Buy | 2,250 | $125,819 |
| May 19, 2026 | Habiger David C | Director | Buy | 2,200 | $125,279 |
Every disclosed BSX trade
| Disclosed | Politician | Type | Amount | Traded | |
|---|---|---|---|---|---|
| Jun 5, 2026 | Gilbert Cisneros D | Purchase | $1,001 - $15,000 | May 29, 2026 | filing ↗ |
| Jun 5, 2026 | Gilbert Cisneros D | Purchase | $1,001 - $15,000 | May 19, 2026 | filing ↗ |
| Jun 5, 2026 | Gilbert Cisneros D | Purchase | $1,001 - $15,000 | May 11, 2026 | filing ↗ |
| Feb 11, 2026 | Gilbert Cisneros D | Purchase | $1,001 - $15,000 | Jan 30, 2026 | filing ↗ |
| Nov 12, 2025 | Gilbert Cisneros D | Purchase | $1,001 - $15,000 | Oct 17, 2025 | filing ↗ |
| Nov 1, 2025 | Lisa McClain R | Sale | $1,001 - $15,000 | Oct 31, 2025 | filing ↗ |
| Nov 1, 2025 | Lisa McClain R | Sale | $1,001 - $15,000 | Oct 30, 2025 | filing ↗ |
| Sep 23, 2025 | Valerie Hoyle D | Sale | $1,001 - $15,000 | Sep 23, 2025 | filing ↗ |
| Apr 28, 2025 | Bruce Westerman R | Sale | $1,001 - $15,000 | Apr 21, 2025 | filing ↗ |
| Mar 17, 2025 | Bruce Westerman R | Purchase | $1,001 - $15,000 | Mar 3, 2025 | filing ↗ |
| Dec 4, 2023 | John Curtis R | Sale | $1,001 - $15,000 | Dec 4, 2023 | filing ↗ |
| Oct 6, 2023 | Lois Frankel D | Sale | $1,001 - $15,000 | Sep 8, 2023 | filing ↗ |
| Oct 31, 2022 | Alan S. Lowenthal D | Sale | $1,001 - $15,000 | Oct 24, 2022 | filing ↗ |
| Jul 22, 2021 | Kevin Hern R | Purchase | $15,001 | Jul 21, 2021 | filing ↗ |
| Jul 1, 2021 | John Curtis R | Purchase | $1,001 - $15,000 | Jun 22, 2021 | filing ↗ |
| May 21, 2021 | Kevin Hern R | Purchase | $1,001 - $15,000 | May 20, 2021 | filing ↗ |
| Feb 19, 2021 | Peter Meijer R | Sale | $1,001 - $15,000 | Feb 16, 2021 | filing ↗ |
| Feb 9, 2021 | Alan S. Lowenthal D | Purchase | $330.51 | Feb 2, 2021 | filing ↗ |
| Feb 9, 2021 | Alan S. Lowenthal D | Purchase | $624.29 | Feb 2, 2021 | filing ↗ |
| Feb 9, 2021 | Alan S. Lowenthal D | Purchase | $1,001 - $15,000 | Feb 2, 2021 | filing ↗ |
| Feb 8, 2021 | Alan S. Lowenthal D | Purchase | $860.95 | Feb 1, 2021 | filing ↗ |
| Feb 8, 2021 | Alan S. Lowenthal D | Purchase | $1,001 - $15,000 | Feb 1, 2021 | filing ↗ |
| Feb 8, 2021 | Alan S. Lowenthal D | Purchase | $15,001 | Feb 1, 2021 | filing ↗ |
| Oct 6, 2020 | Robert J. Wittman R | Purchase | $1,001 - $15,000 | Oct 2, 2020 | filing ↗ |
| Sep 10, 2020 | Dean Phillips D | Purchase | $1,001 - $15,000 | Aug 10, 2020 | filing ↗ |
| Mar 27, 2020 | John Curtis R | Purchase | $1,001 - $15,000 | Mar 27, 2020 | filing ↗ |
| Mar 24, 2020 | Alan S. Lowenthal D | Sale | $1,001 - $15,000 | Mar 19, 2020 | filing ↗ |
| Mar 24, 2020 | Alan S. Lowenthal D | Sale | $460.82 | Mar 19, 2020 | filing ↗ |
| Mar 18, 2020 | Lois Frankel D | Purchase | $1,001 - $15,000 | Mar 18, 2020 | filing ↗ |
| Mar 16, 2020 | Alan S. Lowenthal D | Sale | $1,001 - $15,000 | Mar 11, 2020 | filing ↗ |
| Feb 5, 2020 | Mo Brooks R | Sale | $1,001 - $15,000 | Feb 5, 2020 | filing ↗ |
| May 1, 2019 | Susie Lee D | Sale | $1,001 - $15,000 | Apr 25, 2019 | filing ↗ |
| Jan 29, 2018 | Alan S. Lowenthal D | Purchase | $962.57 | Jan 22, 2018 | filing ↗ |
| Dec 20, 2017 | Alan S. Lowenthal D | Purchase | $15,001 - $50,000 | Dec 14, 2017 | filing ↗ |
| Feb 1, 2017 | Lois Frankel D | Sale | $1,001 - $15,000 | Feb 1, 2017 | filing ↗ |
| Mar 23, 2015 | K. Michael Conaway R | Purchase | $1,001 - $15,000 | Mar 18, 2015 | filing ↗ |
Most active BSX traders in Congress
Alan S. Lowenthal
Democrat
12 trades
Gilbert Cisneros
Democrat
5 trades
John Curtis
Republican
3 trades
Lois Frankel
Democrat
3 trades
Lisa McClain
Republican
2 trades
Bruce Westerman
Republican
2 trades
Kevin Hern
Republican
2 trades
Valerie Hoyle
Democrat
1 trade
Source: US House Clerk Periodic Transaction Reports. Amounts are disclosed as ranges; estimates use range midpoints. Data may be delayed or contain filer errors. Updated Jun 29, 2026. Not investment advice.