Boston Scientific Corp
BSX- Exchange
- NYSE
- Industry
- Surgical & Medical Instruments & Apparatus
- SEC CIK
- 0000885725
In the last 90 days, Boston Scientific Corp insiders filed 5 open-market purchases and 0 sales; 1,485 institutions reported holding it in 13F filings for Q2 2026, worth $57.3B in total; Maverick Capital is the only superinvestor holding it.
Members of Congress who traded BSX
Since 2020, newest trade first. Options and trades reported under an earlier ticker are included.
- Trades
- 85
- Filings
- 64
- Members
- 17
- Buys / sells
- 39 / 46
- Estimated volume
- $956.9K
- Sum of range midpoints
| Member | Trades | Buys / sells | Est. volume | Last traded | Last filed |
|---|---|---|---|---|---|
| Gilbert Ray Cisneros, Jr.Democrat · House · CA | 19 | 10 / 9 | $152.0K | Aug 18, 2026 | Sep 10, 2026 |
| John BoozmanRepublican · Senate · AR | 3 | 1 / 2 | $24.0K | Jun 4, 2026 | Jul 13, 2026 |
| Alan ArmstrongRepublican · Senate · OK | 1 | 1 / 0 | $8.00K | Mar 27, 2026 | Jul 21, 2026 |
| Markwayne MullinRepublican · Senate · OK | 3 | 3 / 0 | $73.0K | Dec 29, 2025 | Jan 16, 2026 |
| Lisa C. McClainRepublican · House · MI | 5 | 2 / 3 | $40.0K | Oct 31, 2025 | Nov 21, 2025 |
| Kevin HernRepublican · House · OK | 6 | 5 / 1 | $264.0K | Oct 28, 2025 | Nov 16, 2025 |
| Val T. HoyleDemocrat · House · OR | 2 | 1 / 1 | $16.0K | Sep 23, 2025 | Oct 10, 2025 |
| Jefferson ShreveRepublican · House · IN | 1 | 0 / 1 | $32.5K | May 12, 2025 | Jun 22, 2025 |
| Bruce WestermanRepublican · House · AR | 2 | 1 / 1 | $16.0K | Apr 21, 2025 | May 12, 2025 |
| John R. CurtisRepublican · House · UT | 5 | 2 / 3 | $40.0K | Dec 4, 2023 | Dec 15, 2023 |
| Lois FrankelDemocrat · House · FL | 11 | 5 / 6 | $88.0K | Sep 8, 2023 | Oct 10, 2023 |
| Alan S. LowenthalDemocrat · House · CA | 18 | 6 / 12 | $131.4K | Oct 24, 2022 | Nov 5, 2022 |
| Robert J. WittmanRepublican · House · VA | 2 | 1 / 1 | $16.0K | Dec 16, 2021 | Jan 9, 2022 |
| Peter MeijerRepublican · House · MI | 1 | 0 / 1 | $8.00K | Feb 16, 2021 | Mar 16, 2021 |
| Dean PhillipsDemocrat · House · MN | 2 | 1 / 1 | $16.0K | Dec 18, 2020 | Jan 9, 2021 |
| Josh GottheimerDemocrat · House · NJ | 3 | 0 / 3 | $24.0K | Apr 14, 2020 | May 13, 2020 |
| Mo BrooksRepublican · House · AL | 1 | 0 / 1 | $8.00K | Feb 5, 2020 | Mar 24, 2020 |
Trades
Every reported trade in Boston Scientific Corp, newest filings first.
| Member | Asset | Type | Owner | Traded | Filed | Delay | Amount | Source |
|---|---|---|---|---|---|---|---|---|
| Gilbert Ray Cisneros, Jr.Democrat · House · CA | BSXBoston Scientific Corporation Common Stock | Buy | Self | Aug 18, 2026 | Sep 10, 2026 | 23 days | $1K-$15K | Filing |
| Alan ArmstrongRepublican · Senate · OK | BSXBoston Scientific Corporation Common Stock | Buy | Self | Mar 27, 2026 | Jul 21, 2026 | 116 daysLate | $1K-$15K | Filing |
| John BoozmanRepublican · Senate · AR | BSXBoston Scientific Corporation Common Stock | Sell (partial) | Joint | Jun 4, 2026 | Jul 13, 2026 | 39 days | $1K-$15K | Filing |
| Gilbert Ray Cisneros, Jr.Democrat · House · CA | BSXBoston Scientific Corporation Common Stock | Buy | Self | Jun 5, 2026 | Jul 2, 2026 | 27 days | $1K-$15K | Filing |
| Gilbert Ray Cisneros, Jr.Democrat · House · CA | BSXBoston Scientific Corporation Common Stock | Sell (partial) | Self | Jun 5, 2026 | Jul 2, 2026 | 27 days | $1K-$15K | Filing |
| Gilbert Ray Cisneros, Jr.Democrat · House · CA | BSXBoston Scientific Corporation Common Stock | Buy | Self | May 11, 2026 | Jun 8, 2026 | 28 days | $1K-$15K | Filing |
| Gilbert Ray Cisneros, Jr.Democrat · House · CA | BSXBoston Scientific Corporation Common Stock | Buy | Self | May 19, 2026 | Jun 8, 2026 | 20 days | $1K-$15K | Filing |
| Gilbert Ray Cisneros, Jr.Democrat · House · CA | BSXBoston Scientific Corporation Common Stock | Buy | Self | May 29, 2026 | Jun 8, 2026 | 10 days | $1K-$15K | Filing |
| Gilbert Ray Cisneros, Jr.Democrat · House · CA | BSXBoston Scientific Corporation Common Stock | Buy | Self | Feb 10, 2026 | Mar 9, 2026 | 27 days | $1K-$15K | Filing |
| Gilbert Ray Cisneros, Jr.Democrat · House · CA | BSXBoston Scientific Corporation Common Stock | Buy | Self | Jan 30, 2026 | Feb 13, 2026 | 14 days | $1K-$15K | Filing |
| Markwayne MullinRepublican · Senate · OK | BSXBoston Scientific Corporation Common Stock | Buy | Joint | Dec 29, 2025 | Jan 16, 2026 | 18 days | $15K-$50K | Filing |
| John BoozmanRepublican · Senate · AR | BSXBoston Scientific Corp | Sell (partial) | Joint | Dec 17, 2025 | Jan 13, 2026 | 27 days | $1K-$15K | Filing |
| Gilbert Ray Cisneros, Jr.Democrat · House · CA | BSXBoston Scientific Corporation Common Stock | Sell (partial) | Self | Dec 24, 2025 | Jan 12, 2026 | 19 days | $1K-$15K | Filing |
| Gilbert Ray Cisneros, Jr.Democrat · House · CA | BSXBoston Scientific Corporation Common Stock | Buy | Self | Nov 18, 2025 | Dec 15, 2025 | 27 days | $1K-$15K | Filing |
| Lisa C. McClainRepublican · House · MI | BSXBoston Scientific Corporation Common Stock | Sell | Spouse | Oct 30, 2025 | Nov 21, 2025 | 22 days | $1K-$15K | Filing |
| Lisa C. McClainRepublican · House · MI | BSXBoston Scientific Corporation Common Stock | Buy | Spouse | Oct 30, 2025 | Nov 21, 2025 | 22 days | $1K-$15K | Filing |
| Lisa C. McClainRepublican · House · MI | BSXBoston Scientific Corporation Common Stock | Sell | Spouse | Oct 31, 2025 | Nov 21, 2025 | 21 days | $1K-$15K | Filing |
| Gilbert Ray Cisneros, Jr.Democrat · House · CA | BSXBoston Scientific Corporation Common Stock | Buy | Self | Oct 17, 2025 | Nov 18, 2025 | 32 days | $1K-$15K | Filing |
| Kevin HernRepublican · House · OK | BSXBoston Scientific Corporation Common Stock | Sell (partial) | Joint | Oct 28, 2025 | Nov 16, 2025 | 19 days | $15K-$50K | Filing |
| Val T. HoyleDemocrat · House · OR | BSXBoston Scientific Corporation Common Stock | Sell | Spouse | Sep 23, 2025 | Oct 10, 2025 | 17 days | $1K-$15K | Filing |
| Val T. HoyleDemocrat · House · OR | BSXBoston Scientific Corporation Common Stock | Buy | Spouse | Oct 29, 2024 | Sep 12, 2025 | 318 daysLate | $1K-$15K | Filing |
| Lisa C. McClainRepublican · House · MI | BSXBoston Scientific Corporation Common Stock | Sell (partial) | Spouse | Aug 4, 2025 | Sep 12, 2025 | 39 days | $1K-$15K | Filing |
| Gilbert Ray Cisneros, Jr.Democrat · House · CA | BSXBoston Scientific Corporation Common Stock | Sell (partial) | Self | Jul 31, 2025 | Aug 14, 2025 | 14 days | $1K-$15K | Filing |
| Lisa C. McClainRepublican · House · MI | BSXBoston Scientific Corporation Common Stock | Buy | Spouse | Dec 11, 2024 | Aug 13, 2025 | 245 daysLate | $1K-$15K | Filing |
| Gilbert Ray Cisneros, Jr.Democrat · House · CA | BSXBoston Scientific Corporation Common Stock | Sell (partial) | Self | Jun 11, 2025 | Jul 10, 2025 | 29 days | $1K-$15K | Filing |
| Gilbert Ray Cisneros, Jr.Democrat · House · CA | BSXBoston Scientific Corporation Common Stock | Sell (partial) | Self | Jun 26, 2025 | Jul 10, 2025 | 14 days | $1K-$15K | Filing |
| Jefferson ShreveRepublican · House · IN | BSXBoston Scientific Corporation Common Stock | Sell | Self | May 12, 2025 | Jun 22, 2025 | 41 days | $15K-$50K | Filing |
| Gilbert Ray Cisneros, Jr.Democrat · House · CA | BSXBoston Scientific Corporation Common Stock | Sell (partial) | Self | May 13, 2025 | Jun 6, 2025 | 24 days | $1K-$15K | Filing |
| Bruce WestermanRepublican · House · AR | BSXBoston Scientific Corporation Common Stock | Sell | Self | Apr 21, 2025 | May 12, 2025 | 21 days | $1K-$15K | Filing |
| Gilbert Ray Cisneros, Jr.Democrat · House · CA | BSXBoston Scientific Corporation Common Stock | Sell (partial) | Self | Apr 28, 2025 | May 6, 2025 | 8 days | $1K-$15K | Filing |
| Bruce WestermanRepublican · House · AR | BSXBoston Scientific Corporation Common Stock | Buy | Self | Mar 3, 2025 | Apr 16, 2025 | 44 days | $1K-$15K | Filing |
| Gilbert Ray Cisneros, Jr.Democrat · House · CA | BSXBoston Scientific Corporation Common Stock | Sell (partial) | Self | Mar 17, 2025 | Apr 7, 2025 | 21 days | $1K-$15K | Filing |
| John BoozmanRepublican · Senate · AR | BSXBoston Scientific Corp | Buy | Joint | Feb 13, 2025 | Mar 6, 2025 | 21 days | $1K-$15K | Filing |
| Gilbert Ray Cisneros, Jr.Democrat · House · CA | BSXBoston Scientific Corporation Common Stock | Sell (partial) | Self | Feb 24, 2025 | Mar 6, 2025 | 10 days | $1K-$15K | Filing |
| John R. CurtisRepublican · House · UT | BSXBoston Scientific Corporation | Sell | Joint | Dec 4, 2023 | Dec 15, 2023 | 11 days | $1K-$15K | Filing |
| Markwayne MullinRepublican · Senate · OK | BSXBoston Scientific Corporation Common Stock | Buy | Joint | Oct 3, 2023 | Nov 1, 2023 | 29 days | $1K-$15K | Filing |
| Markwayne MullinRepublican · Senate · OK | BSXBoston Scientific Corp | Buy | Joint | Sep 13, 2023 | Oct 12, 2023 | 29 days | $15K-$50K | Filing |
| Lois FrankelDemocrat · House · FL | BSXBoston Scientific Corporation | Sell | Self | Sep 8, 2023 | Oct 10, 2023 | 32 days | $1K-$15K | Filing |
| Lois FrankelDemocrat · House · FL | BSXBoston Scientific Corporation | Sell | Self | Sep 8, 2023 | Oct 10, 2023 | 32 days | $1K-$15K | Filing |
| Lois FrankelDemocrat · House · FL | BSXBoston Scientific Corporation | Buy | Self | May 30, 2023 | Jun 24, 2023 | 25 days | $1K-$15K | Filing |
| Lois FrankelDemocrat · House · FL | BSXBoston Scientific Corporation | Sell (partial) | Self | May 31, 2023 | Jun 24, 2023 | 24 days | $1K-$15K | Filing |
| Lois FrankelDemocrat · House · FL | BSXBoston Scientific Corporation | Sell (partial) | Self | Apr 19, 2023 | May 19, 2023 | 30 days | $1K-$15K | Filing |
| Lois FrankelDemocrat · House · FL | BSXBoston Scientific Corporation | Sell (partial) | Self | May 1, 2023 | May 19, 2023 | 18 days | $1K-$15K | Filing |
| John R. CurtisRepublican · House · UT | BSXBoston Scientific Corporation | Sell (partial) | Joint | Apr 26, 2023 | May 10, 2023 | 14 days | $1K-$15K | Filing |
| Lois FrankelDemocrat · House · FL | BSXBoston Scientific Corporation | Sell (partial) | Self | Mar 29, 2023 | Apr 28, 2023 | 30 days | $1K-$15K | Filing |
| John R. CurtisRepublican · House · UT | BSXBoston Scientific Corporation | Sell (partial) | Joint | Feb 23, 2023 | Mar 13, 2023 | 18 days | $1K-$15K | Filing |
| Alan S. LowenthalDemocrat · House · CA | BSXBoston Scientific Corporation | Sell | Spouse | Oct 24, 2022 | Nov 5, 2022 | 12 days | $1K-$15K | Filing |
| Alan S. LowenthalDemocrat · House · CA | BSXBoston Scientific Corporation | Sell (partial) | Joint | Oct 21, 2022 | Oct 29, 2022 | 8 days | $1K-$15K | Filing |
| Alan S. LowenthalDemocrat · House · CA | BSXBoston Scientific Corporation | Sell (partial) | Spouse | Oct 21, 2022 | Oct 29, 2022 | 8 days | $1K-$15K | Filing |
| Lois FrankelDemocrat · House · FL | BSXBoston Scientific Corporation | Buy | Self | Sep 28, 2022 | Oct 24, 2022 | 26 days | $1K-$15K | Filing |
Source: U.S. House Clerk and Senate Office of Public Records (eFD). Amounts are the ranges filers report.