14 U.S. lawmakers have disclosed 49 Boston Scientific Corporation trades under the STOCK Act — 22 buys and 27 sells between 2015 and 2026. Congress has been net sellers of BSX, and their disclosed buys are down 22.1% versus the latest close.
*Notional-weighted price return on lawmakers' disclosed buys of BSX, marked to the latest close — per-share (share counts aren't disclosed).
1 member disclosed a BSX purchase in the last 90 days (newest first).
Lawmakers ranked by notional-weighted return on their disclosed BSX buys (last ~3y), marked to the latest close.
| Date | Member | Type | Amount | Est. price | Latest close | Return |
|---|---|---|---|---|---|---|
| 2026-06-05 | Gilbert Cisneros | SELL | $1K–$15K | $48.55 | $51.69 2026-08-13 | 0.0% rt |
| 2026-06-05 | Gilbert Cisneros | BUY | $1K–$15K | $48.55 | $51.69 2026-08-13 | +6.5% |
| 2026-06-04 | John Boozman | SELL | $1K–$15K | $48.85 | $51.69 2026-08-13 | -5.8% exit |
| 2026-03-27 | Alan Armstrong | BUY | $1K–$15K | $69.17 | $51.69 2026-08-13 | -25.3% |
| 2025-12-29 | Markwayne Mullin | BUY | $15K–$50K | $95.76 | $51.69 2026-08-13 | -46.0% |
| 2025-12-17 | John Boozman | SELL | $1K–$15K | $94.48 | $51.69 2026-08-13 | -11.0% rt |
| 2025-10-28 | Kevin Hern | SELL | $15K–$50K | $100.97 | $51.69 2026-08-13 | +48.8% exit |
| 2025-07-31 | Gilbert Cisneros | SELL | $1K–$15K | $104.92 | $51.69 2026-08-13 | +50.7% exit |
| 2025-02-24 | Gilbert Cisneros | SELL | $1K–$15K | $104.39 | $51.69 2026-08-13 | +50.5% exit |
| 2025-02-13 | John Boozman | BUY | $1K–$15K | $106.14 | $51.69 2026-08-13 | -51.3% |
| 2023-10-03 | Markwayne Mullin | BUY | $1K–$15K | $51.54 | $51.69 2026-08-13 | +0.3% |
| 2023-09-13 | Markwayne Mullin | BUY | $15K–$50K | $53.20 | $51.69 2026-08-13 | -2.8% |
| 2023-05-31 | Lois Frankel | SELL | $1K–$15K | $51.48 | $51.69 2026-08-13 | +31.6% rt |
| 2023-05-30 | Lois Frankel | BUY | $1K–$15K | $50.49 | $51.69 2026-08-13 | +2.4% |
| 2023-05-01 | Lois Frankel | SELL | $1K–$15K | $52.80 | $51.69 2026-08-13 | +42.1% rt |
| 2023-04-26 | John Curtis | SELL | $1K–$15K | $51.10 | $51.69 2026-08-13 | -1.1% exit |
| 2023-04-19 | Lois Frankel | SELL | $1K–$15K | $52.89 | $51.69 2026-08-13 | +68.3% rt |
| 2023-03-29 | Lois Frankel | SELL | $1K–$15K | $49.08 | $51.69 2026-08-13 | +80.2% rt |
| 2023-02-23 | John Curtis | SELL | $1K–$15K | $47.18 | $51.69 2026-08-13 | -9.6% exit |
| 2022-10-24 | Alan S. Lowenthal | SELL | $1K–$15K | $40.98 | $51.69 2026-08-13 | +11.8% rt |
| 2022-10-21 | Alan S. Lowenthal | SELL | $1K–$15K | $40.57 | $51.69 2026-08-13 | +12.8% rt |
| 2022-10-21 | Alan S. Lowenthal | SELL | $1K–$15K | $40.57 | $51.69 2026-08-13 | +10.7% rt |
| 2022-09-28 | Lois Frankel | BUY | $1K–$15K | $39.13 | $51.69 2026-08-13 | +32.1% |
| 2021-12-16 | Robert J. Wittman | SELL | $1K–$15K | $40.43 | $51.69 2026-08-13 | +5.1% rt |
| 2021-08-06 | Alan S. Lowenthal | SELL | $1K–$15K | $44.70 | $51.69 2026-08-13 | +24.3% rt |
| 2021-08-03 | Alan S. Lowenthal | SELL | $1K–$15K | $45.54 | $51.69 2026-08-13 | +26.7% rt |
| 2021-02-02 | Alan S. Lowenthal | BUY | $1K–$15K | $36.64 | $51.69 2026-08-13 | +41.1% |
| 2021-02-02 | Alan S. Lowenthal | BUY | $624.29–$624.29 | $36.64 | $51.69 2026-08-13 | +41.1% |
| 2021-02-02 | Alan S. Lowenthal | BUY | $330.51–$330.51 | $36.64 | $51.69 2026-08-13 | +41.1% |
| 2021-02-01 | Alan S. Lowenthal | BUY | $15K–$50K | $35.95 | $51.69 2026-08-13 | +43.8% |
| 2021-02-01 | Alan S. Lowenthal | BUY | $1K–$15K | $35.95 | $51.69 2026-08-13 | +43.8% |
| 2021-02-01 | Alan S. Lowenthal | BUY | $860.95–$860.95 | $35.95 | $51.69 2026-08-13 | +43.8% |
| 2020-10-21 | Lois Frankel | BUY | $1K–$15K | $37.15 | $51.69 2026-08-13 | +39.1% |
| 2020-10-02 | Robert J. Wittman | BUY | $1K–$15K | $38.48 | $51.69 2026-08-13 | +34.3% |
| 2020-08-10 | Dean Phillips | BUY | $1K–$15K | $38.98 | $51.69 2026-08-13 | +32.6% |
| 2020-03-26 | Lois Frankel | BUY | $1K–$15K | $31.42 | $51.69 2026-08-13 | +64.5% |
| 2020-03-19 | Alan S. Lowenthal | SELL | $460.82–$460.82 | $28.27 | $51.69 2026-08-13 | -82.8% exit |
| 2020-03-19 | Alan S. Lowenthal | SELL | $1K–$15K | $28.27 | $51.69 2026-08-13 | -82.8% exit |
| 2020-03-18 | Lois Frankel | BUY | $1K–$15K | $27.24 | $51.69 2026-08-13 | +89.8% |
| 2020-03-13 | Alan S. Lowenthal | SELL | $614.21–$614.21 | $32.33 | $51.69 2026-08-13 | +16.7% rt |
| 2020-03-11 | Alan S. Lowenthal | SELL | $1K–$15K | $33.86 | $51.69 2026-08-13 | +32.2% rt |
| 2020-02-27 | Josh Gottheimer | SELL | $1K–$15K | $37.92 | $51.69 2026-08-13 | -36.3% exit |
| 2020-02-05 | Mo Brooks | SELL | $1K–$15K | $42.62 | $51.69 2026-08-13 | -21.3% exit |
| 2019-07-30 | Lois Frankel | SELL | $1K–$15K | $42.86 | $51.69 2026-08-13 | -20.6% exit |
| 2019-04-25 | Susie Lee | SELL | $1K–$15K | $36.93 | $51.69 2026-08-13 | -40.0% exit |
| 2018-01-22 | Alan S. Lowenthal | BUY | $962.57–$962.57 | $27.71 | $51.69 2026-08-13 | +86.5% |
| 2017-12-14 | Alan S. Lowenthal | BUY | $15K–$50K | $25.62 | $51.69 2026-08-13 | +101.8% |
| 2017-02-01 | Lois Frankel | SELL | $1K–$15K | $23.96 | $51.69 2026-08-13 | -115.7% exit |
| 2015-03-18 | K. Michael Conaway | BUY | $1K–$15K | $17.76 | $51.69 2026-08-13 | +191.1% |
Return: buys marked to the latest close (open); sells tagged rt are realized round-trips vs a prior disclosed buy; exit = timing (stock move after the sale, seller's perspective).
14 members of the U.S. House and Senate have disclosed Boston Scientific Corporation transactions under the STOCK Act — 22 purchases and 27 sales. The full member-by-member breakdown, with dates and dollar ranges, is in the table above.
1 member disclosed a BSX purchase in the last 90 days — most recently Gilbert Cisneros on 2026-06-05. See the "Lawmakers who bought BSX recently" section above for the dated list.
Notional-weighted, lawmakers' disclosed BSX buys are down 22.1% versus the latest close of $51.69. Each trade's own return — and realized round-trips on matched sells — is in the Return column.
Yes. Under the 2012 STOCK Act, members of Congress may buy and sell individual stocks but must publicly disclose each transaction within 45 days. Bargo surfaces those filings so you can see who traded BSX and how it performed.