BSX insider trading — Boston Scientific Corp
Over the last 90 days, insiders at Boston Scientific Corp (BSX) made 6 open-market purchases worth $9.49M and 0 open-market sales worth $0, making them net buyers by $9.49M. The largest purchase was by Mahoney Michael F (Chairman, President & CEO), who bought 186,240 shares for $9.00M on Aug 3, 2026. 4 different insiders bought shares in this period — a cluster buy, which many investors watch closely.
Updated Oct 16, 2026.
Recent BSX insider transactions
Every Form 4 filed by Boston Scientific Corp officers, directors and 10% owners in the last 90 days, newest first. P = open-market purchase, S = open-market sale; other codes are awards, option exercises, tax withholding or gifts.
| Trade date | Insider | Role | Type | Ownership | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|---|
| Sep 2, 2026 | O'Connor Padraig Andrew | EVP, Global Operations | M · Option exercise | Direct | 1,171 | — | — | Form 4 |
| Sep 2, 2026 | O'Connor Padraig Andrew | EVP, Global Operations | F · Tax withholding | Direct | 567 | $48.37 | $27K | Form 4 |
| Aug 25, 2026 | Morano Susan E | Director | P · Purchase | Direct | 2,040 | $49.22 | $100K | Form 4 |
| Aug 11, 2026 | Woodworth Emily | SVP, Global Controller and CAO | I · Discretionary | Indirect | 2,930 | $51.19 | $150K | Form 4 |
| Aug 10, 2026 | Monson Jonathan | EVP and CFO | I · Discretionary | Indirect | 9,908 | $50.46 | $500K | Form 4 |
| Aug 5, 2026 | Habiger David C | Director | P · Purchase | Direct | 2,100 | $47.59 | $100K | Form 4 |
| Aug 4, 2026 | Habiger David C | Director | P · Purchase | Direct | 140 | $48.59 | $7K | Form 4 |
| Aug 3, 2026 | Habiger David C | Director | P · Purchase | Direct | 1,042 | $48.07 | $50K | Form 4 |
| Aug 3, 2026 | Mahoney Michael F | Chairman, President & CEO | P · Purchase | Direct | 186,240 | $48.33 | $9.00M | Form 4 |
| Aug 3, 2026 | Mahoney Michael F | Chairman, President & CEO | I · Discretionary | Indirect | 22,119 | $48.43 | $1.07M | Form 4 |
| Jul 31, 2026 | Ludwig Edward J | Director | P · Purchase | Direct | 5,000 | $45.48 | $227K | Form 4 |
| Jul 31, 2026 | Fitzgerald Joseph Michael | EVP & Group Pres, Cardiology | I · Discretionary | Indirect | 64,198 | $46.73 | $3.00M | Form 4 |
BSX insider trading FAQ
Are insiders buying BSX stock?
Yes. In the last 90 days, Boston Scientific Corp insiders made 6 open-market purchases totaling $9.49M, and no open-market sales. Purchases with the insider's own money are generally seen as a stronger signal than sales, which happen for many reasons (taxes, diversification, planned 10b5-1 sales).
Who are the insiders trading BSX?
Recent buyers: Habiger David C, Ludwig Edward J, Mahoney Michael F, Morano Susan E.
Where does BSX insider trading data come from?
Every transaction comes from SEC Form 4 filings on EDGAR. Company officers, directors and 10% owners must file a Form 4 within two business days of buying or selling. InsiderBolt reads these filings directly from the SEC.
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Insider trading data is for informational purposes only and is not investment advice. Filings can be amended; always confirm details on SEC EDGAR.