Quick Takeaways
- Michael F. Mahoney has 3 issuer positions tracked on this page.
- Estimated disclosed ownership value: $141,718,681.
- Recent insider filing activity is available below.
- Info
- Insider Ownership
Insider Trading & Ownership of Michael F. Mahoney
- Location
- Marlborough, MA
- Summary
- The estimated net worth of Michael F. Mahoney is at least $141,718,681 dollars as of 18 Feb 2026. Michael F. Mahoney is the Chairman, President & CEO, Director of BOSTON SCIENTIFIC CORP and owns shares of BOSTON SCIENTIFIC CORP (BSX) stock worth about $139.76M. Michael F. Mahoney is the Director of BAXTER INTERNATIONAL INC and owns shares of BAXTER INTERNATIONAL INC (BAX) stock worth about $1.22M. Michael F. Mahoney is the Director of CVS HEALTH Corp and owns shares of CVS HEALTH Corp (CVS) stock worth about $734.5K.
- Signature
- /s/ Susan Thompson, Attorney-in-Fact
- All Insider Reports
- All Insider Reports
Follow Filing Activity
Follow Michael F. Mahoney and return when a new Insider Trading filing appears.
This tracks SEC filing changes for this page using existing product update flows.
What Changed
- Largest disclosed position: BOSTON SCIENTIFIC CORP ($139,762,584).
- Past-year value change for that position: -$48,946,504.
Why This Matters
- This page translates Forms 3/4/5 into a quick ownership context before you inspect each transaction row.
- You can cross-check role, issuer, and filing chronology directly against the SEC source.
Official SEC Source
Filed on Form 4
Insider ownership context is sourced from SEC Forms 3, 4, and 5.
See Original FilingOwnership of Michael F. Mahoney
| Symbol | Company | Relationship | Holdings Value | Past Year Net Change | Change % | Report Period |
|---|---|---|---|---|---|---|
| BSX | BOSTON SCIENTIFIC CORP | Chairman, President & CEO, Director | $139,762,584 | -$48,946,504 | -26% | 13 Feb 2026 |
| BAX | BAXTER INTERNATIONAL INC | Director | $1,221,613 | 02 May 2023 | ||
| CVS | CVS HEALTH Corp | Director | $734,484 | 20 Nov 2025 |
Insider Transactions Reported by Michael F. Mahoney:
| Sym | Company | Class | Transaction | % | Value $ | * Price $ | Shares | Shares After | Date | Ownership |
|---|
* An asterisk sign (*) next to the price indicates that the price is likely invalid.