Home

Michael F Mahoney

CIK 1533022 · Chairman, President & CEO · last filed 2026-08-05

Michael F Mahoney is a Chairman, President & CEO who has filed 138 SEC Form 4 insider transactions across 3 companies since 2011. The most recent filing, for BSX, was dated Aug 5, 2026. Across all open-market trades the lifetime net is −$210.6M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $77.1M across reported positions.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

Loading insider history…
Disclosed Exposure

$77.10M

Companies

3

Total Filings

138

Lifetime Open-Market Net

-$210.55M

Filer Profile

Reported Address
BOSTON SCIENTIFIC CORPORATION
300 BOSTON SCIENTIFIC WAY
MARLBOROUGH, MA 01752-1234
Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses. View filings on SEC EDGAR.

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
BSX Chairman, President & CEO 1,612,143 $46.95 $75.69M -$213.06M 110 2026-08-05
CVS Director 6,555 $97.20 $637.1K $2.50M 8 2026-05-15
BAX Director 30,089 $25.57 $769.4K $0 10 2023-05-04

Recent Filings

138 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2026-08-05 BSX Mixed +208,359 $10.07M EDGAR
2026-06-01 BSX Gift (G) −386,755 $0 EDGAR
2026-05-15 CVS Grant (A) — $0 EDGAR
2026-02-18 BSX Mixed +158,047 -$11.06M EDGAR
2026-02-17 BSX Mixed +7,078 -$491.1K EDGAR
2026-02-03 BSX Mixed −65,147 -$12.57M EDGAR
2026-02-02 BSX Notice (144) −160,901 -$15.04M EDGAR
2025-11-21 CVS Grant (A) — $0 EDGAR
2025-10-31 BSX Gift (G) +12,201 $0 EDGAR
2025-06-03 BSX Mixed −58,824 -$14.87M EDGAR
Showing 1–10 of 138
Page 1 of 14
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.