BOSTON SCIENTIFIC CORP
AI summary Insider cluster buying following second-quarter 2026 earnings beat
- Research score
- 72
- AI adjustment
- -4
Research score, not a recommendation.
Market data
Live quote and chart from Yahoo Finance, loaded through this server. Insider purchases are marked on the chart.
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Why this score
Research score: a weighted blend of the five factors, times the routine and offering discounts, minus the selling penalty.
Why are they buying?
AI · mixed · catalyst credible · documentedInsiders purchased company stock following the release of strong second-quarter 2026 financial results on July 29, 2026, which featured net sales growth and an adjusted EPS beat above the company's guidance range. The timing indicates management and directors were capitalizing on confidence following the earnings report, although one transaction by the CEO involved a 401(k) plan rebalancing.
Boston Scientific reported Q2 2026 net sales of $5.442 billion, up 7.5 percent reported, and achieved an adjusted EPS of $0.86 compared to guidance of $0.82 to $0.84. Concurrently, CEO Michael F. and several directors made open-market purchases and plan-related transactions in late July and early August 2026.
Stock Price & Insider Purchase History
Daily close price with open-market insider purchases plotted over time
Loading price history…
| Date | Insider | Role | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|
| 2026-08-03 | Mahoney Michael F history of Mahoney Michael F's purchases | CEO | 186,240 | $48.33 | $9.0M | SEC filing for Mahoney Michael F (opens in a new tab) |
| 2026-07-31 | LUDWIG EDWARD J history of LUDWIG EDWARD J's purchases | Director | 5,000 | $45.48 | $227.4K | SEC filing for LUDWIG EDWARD J (opens in a new tab) |
| 2026-08-03 → 2026-08-05 | Habiger David C history of Habiger David C's purchases | Director | 3,282 | $47.78 avg | $156.8K | |
| 2026-08-03 | Habiger David C | 1,042 | $48.07 | $50.1K | SEC filing for Habiger David C (opens in a new tab) | |
| 2026-08-04 | Habiger David C | 140 | $48.59 | $6.8K | SEC filing for Habiger David C (opens in a new tab) | |
| 2026-08-05 | Habiger David C | 2,100 | $47.59 | $99.9K | SEC filing for Habiger David C (opens in a new tab) | |
| 2026-08-25 | Morano Susan E history of Morano Susan E's purchases | Director | 2,040 | $49.22 | $100.4K | SEC filing for Morano Susan E (opens in a new tab) |
| Total | $9.5M | |||||
Other buying runs at BSX
A run ends after a pause in the buying, so one company can have several. Returns are the stock's return minus its benchmark's (IWM for small companies, SPY otherwise), from the first open after the run became a cluster. Past results, not a forecast.
After this run became a cluster: 21 days -2.9%63 days –126 days –
| Window | Insiders | Total | Score | 21 days | 63 days | 126 days | Status |
|---|---|---|---|---|---|---|---|
| 2026-05-19 → 2026-05-20 | 3 | $554.0K | 63 | -21.3% | -17.5% | – | active |