The Boston Scientific Corporation line shows up 91 times in the congressional disclosure record between 2015 and 2026, filed by 16 members: 40 purchases against 51 sales. On balance the chamber has been net sellers, and the purchases sit down 32.0% against the latest close.
*Purchases only, weighted by the midpoint of each disclosed dollar band and marked to the latest close. Filings report a range, never a share count, so this follows the stock rather than anyone's position size.
Reported a BSX purchase in filings from the last 90 days, newest first. 2 members.
Members ranked by how their reported BSX purchases have moved since, over roughly the last three years, weighted by disclosed band midpoint and marked to the latest close.
| Date | Member | Type | Amount | Est. price | Latest close | Return |
|---|---|---|---|---|---|---|
| 2022-02-07 | Michael T. McCaul | SELL | $1K–$15K | $42.91 | $47.80 2026-09-04 | -11.4% exit |
| 2022-02-07 | Michael T. McCaul | BUY | $1K–$15K | $42.91 | $47.80 2026-09-04 | +11.4% |
| 2022-02-07 | Michael T. McCaul | BUY | $15K–$50K | $42.91 | $47.80 2026-09-04 | +11.4% |
| 2022-02-07 | Michael T. McCaul | SELL | $1K–$15K | $42.91 | $47.80 2026-09-04 | -11.4% exit |
| 2022-02-07 | Michael T. McCaul | BUY | $1K–$15K | $42.91 | $47.80 2026-09-04 | +11.4% |
| 2022-02-07 | Michael T. McCaul | BUY | $15K–$50K | $42.91 | $47.80 2026-09-04 | +11.4% |
| 2021-12-16 | Robert J. Wittman | SELL | $1K–$15K | $40.43 | $47.80 2026-09-04 | -18.2% exit |
| 2021-08-06 | Alan S. Lowenthal | SELL | $1K–$15K | $44.70 | $47.80 2026-09-04 | -6.9% exit |
| 2021-08-03 | Alan S. Lowenthal | SELL | $1K–$15K | $45.54 | $47.80 2026-09-04 | -5.0% exit |
| 2021-02-02 | Alan S. Lowenthal | BUY | $1K–$15K | $36.64 | $47.80 2026-09-04 | +30.5% |
| 2021-02-02 | Alan S. Lowenthal | BUY | $624.29–$624.29 | $36.64 | $47.80 2026-09-04 | +30.5% |
| 2021-02-02 | Alan S. Lowenthal | BUY | $330.51–$330.51 | $36.64 | $47.80 2026-09-04 | +30.5% |
| 2021-02-01 | Alan S. Lowenthal | BUY | $15K–$50K | $35.95 | $47.80 2026-09-04 | +33.0% |
| 2021-02-01 | Alan S. Lowenthal | BUY | $1K–$15K | $35.95 | $47.80 2026-09-04 | +33.0% |
| 2021-02-01 | Alan S. Lowenthal | BUY | $860.95–$860.95 | $35.95 | $47.80 2026-09-04 | +33.0% |
| 2020-10-21 | Lois Frankel | BUY | $1K–$15K | $37.15 | $47.80 2026-09-04 | +28.7% |
| 2020-10-02 | Robert J. Wittman | BUY | $1K–$15K | $38.48 | $47.80 2026-09-04 | +24.2% |
| 2020-10-01 | Michael T. McCaul | SELL | $50K–$100K | $38.42 | $47.80 2026-09-04 | -24.4% exit |
| 2020-10-01 | Michael T. McCaul | SELL | $50K–$100K | $38.42 | $47.80 2026-09-04 | -24.4% exit |
| 2020-08-10 | Dean Phillips | BUY | $1K–$15K | $38.98 | $47.80 2026-09-04 | +22.6% |
| 2020-08-07 | Michael T. McCaul | BUY | $50K–$100K | $38.97 | $47.80 2026-09-04 | +22.7% |
| 2020-08-07 | Michael T. McCaul | BUY | $50K–$100K | $38.97 | $47.80 2026-09-04 | +22.7% |
| 2020-03-26 | Lois Frankel | BUY | $1K–$15K | $31.42 | $47.80 2026-09-04 | +52.1% |
| 2020-03-19 | Alan S. Lowenthal | SELL | $460.82–$460.82 | $28.27 | $47.80 2026-09-04 | -69.1% exit |
| 2020-03-19 | Alan S. Lowenthal | SELL | $1K–$15K | $28.27 | $47.80 2026-09-04 | -69.1% exit |
| 2020-03-18 | Lois Frankel | BUY | $1K–$15K | $27.24 | $47.80 2026-09-04 | +75.5% |
| 2020-03-13 | Alan S. Lowenthal | SELL | $614.21–$614.21 | $32.33 | $47.80 2026-09-04 | -47.9% exit |
| 2020-03-11 | Alan S. Lowenthal | SELL | $1K–$15K | $33.86 | $47.80 2026-09-04 | -41.2% exit |
| 2020-02-27 | Josh Gottheimer | SELL | $1K–$15K | $37.92 | $47.80 2026-09-04 | -26.1% exit |
| 2020-02-05 | Mo Brooks | SELL | $1K–$15K | $42.62 | $47.80 2026-09-04 | -12.2% exit |
| 2020-01-16 | Michael T. McCaul | BUY | $50K–$100K | $43.20 | $47.80 2026-09-04 | +10.7% |
| 2020-01-16 | Michael T. McCaul | BUY | $15K–$50K | $43.20 | $47.80 2026-09-04 | +10.7% |
| 2019-07-30 | Lois Frankel | SELL | $1K–$15K | $42.86 | $47.80 2026-09-04 | -11.5% exit |
| 2019-05-28 | Rohit Khanna | BUY | $1K–$15K | $38.45 | $47.80 2026-09-04 | +24.3% |
| 2019-04-25 | Susie Lee | SELL | $1K–$15K | $36.93 | $47.80 2026-09-04 | -29.4% exit |
| 2018-01-22 | Alan S. Lowenthal | BUY | $962.57–$962.57 | $27.71 | $47.80 2026-09-04 | +72.5% |
| 2017-12-14 | Alan S. Lowenthal | BUY | $15K–$50K | $25.62 | $47.80 2026-09-04 | +86.6% |
| 2017-11-30 | Rohit Khanna | BUY | $1K–$15K | $26.28 | $47.80 2026-09-04 | +81.9% |
| 2017-07-05 | Rohit Khanna | BUY | $1K–$15K | $27.63 | $47.80 2026-09-04 | +73.0% |
| 2017-02-01 | Lois Frankel | SELL | $1K–$15K | $23.96 | $47.80 2026-09-04 | -99.5% exit |
| 2015-03-18 | K. Michael Conaway | BUY | $1K–$15K | $17.76 | $45.58 2026-10-26 | +156.6% |
Buys are marked to the latest close and treated as open. A sell tagged rt closes an earlier disclosed buy in the same name. exit shows how the stock moved after the member sold.
16 members of the U.S. House and Senate have disclosed Boston Scientific Corporation transactions under the STOCK Act — 40 purchases and 51 sales. The full member-by-member breakdown, with dates and dollar ranges, is in the table above.
2 members disclosed a BSX purchase in the last 90 days — most recently Gilbert Cisneros on 2026-08-18. See the "Lawmakers who bought BSX recently" section above for the dated list.
Notional-weighted, lawmakers' disclosed BSX buys are down 32.0% versus the latest close of $47.80. 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.