BOSTON SCIENTIFIC CORP Insider Trading Activity
Every SEC Form 4 insider transaction reported for BOSTON SCIENTIFIC CORP (BSX), sourced directly from SEC EDGAR and updated as new filings are accepted.
By Trabud · Insider-trading data from SEC EDGAR
Latest filing:
Compiled automatically from SEC EDGAR Form 4 filings and refreshed daily. Figures count purchases (code P) and sales (code S) only — not grants, option exercises, or gifts. How this page is built. Not investment advice.
Quick Answer
Are BSX insiders buying or selling?
In the last 12 months, BOSTON SCIENTIFIC CORP insiders reported 8 open-market purchases ($10.0M) and 5 sales ($24.3M) — net selling of $14.3M. Since January 2018, Trabud has recorded 348 Form 4 filings for BSX: 11 buys ($11.1M) and 337 sells ($523.0M).
Source: SEC EDGAR Form 4
What stands out
- The largest open-market purchase in the last 12 months was $9.0M by Michael F Mahoney (Chairman, President & CEO) on Aug 5, 2026. SEC ↗
- 4 different insiders made open-market purchases of BSX in the last 90 days, totaling $9.5M.
- The most recent open-market purchase was reported on Aug 26, 2026 (53 days ago).
Key Statistics (January 2018 – Aug 26, 2026)
Total Form 4 filings
348
SEC EDGAR
Insider filers
32
Insider buys (11)
$11.1M
Insider sells (337)
$523.0M
Insider sentiment
Net sellingNet insider flow of $511.9M in net selling since January 2018, and $14.3M in net selling over the last 12 months. 5 insider buys in the last 90 days.
Recent BSX insider transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Aug 26, 2026 | Susan E Morano | Director | Purchase | 2.0K | $49.22 | $100.4K | SEC ↗ |
| Aug 7, 2026 | David C Habiger | Director | Purchase | 2.1K | $47.59 | $99.9K | SEC ↗ |
| Aug 5, 2026 | David C Habiger | Director | Purchase | 1.2K | $48.13 | $56.9K | SEC ↗ |
| Aug 5, 2026 | Michael F Mahoney | Chairman, President & CEO | Purchase | 186.2K | $48.33 | $9.0M | SEC ↗ |
| Aug 3, 2026 | Edward J Ludwig | Director | Purchase | 5.0K | $45.48 | $227.4K | SEC ↗ |
| May 21, 2026 | Cheryl Pegus | Director | Purchase | 1.8K | $56.49 | $100.0K | SEC ↗ |
| May 21, 2026 | Edward J Ludwig | Director | Purchase | 3.6K | $56.68 | $202.9K | SEC ↗ |
| May 21, 2026 | David C Habiger | Director | Purchase | 4.5K | $56.43 | $251.1K | SEC ↗ |
| Feb 3, 2026 | Michael F Mahoney | Chairman, President & CEO | Sale | 160.9K | $93.49 | $15.0M | SEC ↗ |
| Dec 2, 2025 | Arthur C Butcher | EVP& Grp Pres, MedSurg & APAC | Sale | 17.3K | $101.55 | $1.8M | SEC ↗ |
| Nov 6, 2025 | Ellen M Zane | Director | Sale | 12.9K | $98.28 | $1.3M | SEC ↗ |
| Nov 4, 2025 | Joseph Michael Fitzgerald | EVP & Group Pres, Cardiology | Sale | 50.0K | $99.47 | $5.0M | SEC ↗ |
| Oct 28, 2025 | Ellen M Zane | Director | Sale | 12.9K | $101.38 | $1.3M | SEC ↗ |
| Oct 1, 2025 | Joseph Michael Fitzgerald | EVP & Group Pres, Cardiology | Sale | 50.0K | $98.47 | $4.9M | SEC ↗ |
| Sep 3, 2025 | Joseph Michael Fitzgerald | EVP & Group Pres, Cardiology | Sale | 50.0K | $105.43 | $5.3M | SEC ↗ |
| Aug 4, 2025 | Joseph Michael Fitzgerald | EVP & Group Pres, Cardiology | Sale | 50.0K | $104.63 | $5.2M | SEC ↗ |
| Aug 4, 2025 | Arthur C Butcher | EVP& Grp Pres, MedSurg & APAC | Sale | 17.3K | $104.63 | $1.8M | SEC ↗ |
| Jul 30, 2025 | Yoshiaki Fujimori | Director | Sale | 2.9K | $106.99 | $310.4K | SEC ↗ |
| Jul 28, 2025 | Edward J Ludwig | Director | Sale | 4.0K | $106.03 | $424.1K | SEC ↗ |
| Jul 2, 2025 | Joseph Michael Fitzgerald | EVP & Group Pres, Cardiology | Sale | 50.0K | $106.97 | $5.3M | SEC ↗ |
| Jun 4, 2025 | Joseph Michael Fitzgerald | EVP & Group Pres, Cardiology | Sale | 56.4K | $102.88 | $5.8M | SEC ↗ |
| Jun 3, 2025 | Michael F Mahoney | Chairman, President & CEO | Sale | 164.4K | $103.69 | $17.1M | SEC ↗ |
| May 30, 2025 | Edward J Ludwig | Director | Sale | 4.0K | $104.59 | $418.4K | SEC ↗ |
| May 22, 2025 | Vance R Brown | SVP, GC and Corp. Secretary | Sale | 4.8K | $106.42 | $513.6K | SEC ↗ |
| May 6, 2025 | John Bradley Sorenson | EVP, Global Operations | Sale | 4.6K | $104.54 | $478.0K | SEC ↗ |
Showing the 25 most recent of 348 Form 4 filings for BOSTON SCIENTIFIC CORP.
Most active BSX insiders
- David A Pierce62 filings
- Wendy Carruthers41 filings
- Jeffrey B. Mirviss32 filings
- Michael F Mahoney24 filings
- Arthur C Butcher22 filings
Ask anything about BSX insider activity
Use Trabud's AI agent to query BOSTON SCIENTIFIC CORP's Form 4 history in plain English — "Show me BSX CEO purchases this year" or compare it against any other ticker.
Open the AI agentBSX insider trading FAQ
Are BOSTON SCIENTIFIC CORP insiders buying or selling?
In the last 12 months, BOSTON SCIENTIFIC CORP insiders reported 8 open-market purchases ($10.0M) and 5 sales ($24.3M) — net selling of $14.3M. Since January 2018, Trabud has recorded 348 Form 4 filings for BSX: 11 buys ($11.1M) and 337 sells ($523.0M). Over the full record that is net selling of $511.9M.
How many insiders trade BSX stock?
32 distinct insider filers — officers, directors, 10%+ owners, and investment groups filing jointly — have reported Form 4 transactions for BOSTON SCIENTIFIC CORP. The most recent filing was accepted on Aug 26, 2026.
Where does Trabud get BSX insider trading data?
All BSX insider trading data comes directly from official SEC EDGAR Form 4 filings, which corporate insiders must submit within two business days of a transaction under Section 16(a) of the Securities Exchange Act of 1934.