Summary
Updated Aug 31, 2026
Michael F. Mahoney is Chairman, President & CEO, Director of BOSTON SCIENTIFIC CORP (BSX). 11 SEC Form 4 filings on record going back to 2024, most recently on 5 August 2026. Most recent open-market trade: bought $9.00M of BSX on 5 August 2026. Lifetime open-market purchases: $9.00M. Lifetime open-market sales: $42.61M.
Recent Transactions
20Every recent SEC Form 4 transaction Michael F. Mahoney has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Michael F. Mahoney go back to 2024: 11 primary Form 4 filings, an average of 3.7 per year. The typical open-market purchase is $9.00M (1 buy totaling $9.00M). The largest single buy on record is $9.00M of BSX in 2026. Sales side: 6 recorded sales totaling $42.61M, so the filing history runs sell-heavy by dollar value. 18 recorded transactions carry a Rule 10b5-1 flag, meaning they were pre-scheduled under a written trading plan rather than discretionary.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Michael F. Mahoney files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Joseph Michael Fitzgerald - $15.17M of BSX open-market activity in the last 12 months
- Ellen M. Zane - $2.57M of BSX open-market activity in the last 12 months
- Arthur C. Butcher - $1.76M of BSX open-market activity in the last 12 months
- Edward J. Ludwig - $430K of BSX open-market activity in the last 12 months
- David C. Habiger - $408K of BSX open-market activity in the last 12 months
- Susan E. Morano - $100K of BSX open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Michael F. Mahoney?
Michael F. Mahoney is a corporate insider, tracked as Chairman, President & CEO, Director of BOSTON SCIENTIFIC CORP (BSX). InsiderAlpha holds 11 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Michael F. Mahoney submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Michael F. Mahoney been buying or selling stock?
Recorded transactions: 1 open-market purchase ($9.00M) and 6 open-market sales ($42.61M) across all tracked filings.
Where can I see all of Michael F. Mahoney's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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