Boston Scientific Corporation (BSX): insider cluster buy of May 2026
Price after the alert
What happened
Boston Scientific Corporation (BSX) was flagged by ClusterSignal’s cluster detector on 22 May 2026, based on 3 insiders reporting purchases totalling about $454K in public insider filings. The alert scored 8.2/10. The entry price used for every return on this page is $57.15. Since the alert the stock is down 13.6% (as of 20 Aug 2026). The best price within 30 days gave a 30-day peak of +0.9% on 26 May 2026. Measured at day 30, the return was −22.4%. The 90-day peak was +0.9% on 26 May 2026.
A peak is the highest price reached inside a window, seen in hindsight. It is not a return anyone was guaranteed to capture. ClusterSignal publishes every resolved alert, the losers too, and the figures describe past events only.
Keep reading
- Results page: every resolved alert, winners and losers.
- All alert pages: the same view, one page per alert.
- Winning insider-cluster alerts take 25 days to peak, losing ones fail in 4: what the full set of alerts shows.
- What is a Form 4 filing? The public document behind every alert.
- Guide and glossary: how to read the terms on this page.
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