MASINasdaqSEC EDGAREDGAR

MASIMO CORP

Electromedical & Electrotherapeutic Apparatus·IRVINE, CA·FY end 01/02·CIK 937556

Overview Financials Compensation Governance Insiders Filings

Net 180d

-$5.1M

0 buys / 6 sales

Open-market buys

0 transactions

Open-market sales

$5.1M

6 transactions

Cluster windows

0 buy / 0 sell

Insider transaction timeline

2-year window · 30 buys · 24 sales · dot size = transaction value

AcquisitionsSalesCluster window (≥2 sales / month)

Form 4 transactions

Showing 30 of 54

Date	Insider	Type	Shares	Value
2026-04-29	LANE WENDY E	Exercise	1,225	—
2026-04-29	Scannell Timothy J	Exercise	1,225	—
2026-04-29	Brennan Michelle	Exercise	1,225	—
2026-04-29	LANE WENDY E	Exercise	1,225	—
2026-04-29	Brennan Michelle	Exercise	1,225	—
2026-04-29	Scannell Timothy J	Exercise	1,225	—
2026-04-21	Hellmann Elisabeth AChief Human Resources Officer	Exercise	335	—
2026-04-21	Hellmann Elisabeth AChief Human Resources Officer	Tax withhold	121	-$21.6K
2026-04-21	Hellmann Elisabeth AChief Human Resources Officer	Exercise	335	—
2026-04-21	Hellmann Elisabeth AChief Human Resources Officer	Tax withhold	121	-$21.6K
2026-03-11	Young Micah WEVP & Chief Financial Officer	Exercise	873	—
2026-03-11	Young Micah WEVP & Chief Financial Officer	Tax withhold	471	-$82.6K
2026-03-11	Szyman Catherine M.CEO	Exercise	2,101	—
2026-03-11	Szyman Catherine M.CEO	Tax withhold	1,069	-$187.6K
2026-03-11	Young Micah WEVP & Chief Financial Officer	Exercise	873	—
2026-03-11	Young Micah WEVP & Chief Financial Officer	Tax withhold	471	-$82.6K
2026-03-11	Szyman Catherine M.CEO	Exercise	2,101	—
2026-03-11	Szyman Catherine M.CEO	Tax withhold	1,069	-$187.6K
2026-02-27	Young Micah WEVP & Chief Financial Officer	Award	15,000	—
2026-02-27	Young Micah WEVP & Chief Financial Officer	Tax withhold	8,093	-$1.4M
2026-02-27	Young Micah WEVP & Chief Financial Officer	Award	15,000	—
2026-02-27	Young Micah WEVP & Chief Financial Officer	Tax withhold	8,093	-$1.4M
2026-02-26	Young Micah WEVP & Chief Financial Officer	Award	2,034	—
2026-02-26	Young Micah WEVP & Chief Financial Officer	Tax withhold	1,123	-$196.8K
2026-02-26	Young Micah WEVP & Chief Financial Officer	Award	2,034	—
2026-02-26	Young Micah WEVP & Chief Financial Officer	Tax withhold	1,123	-$196.8K
2026-02-12	Szyman Catherine M.CEO	Exercise	11,141	$1.5M
2026-02-12	Szyman Catherine M.CEO	Tax withhold	4,568	—
2026-02-12	Szyman Catherine M.CEO	Exercise	11,141	$1.5M
2026-02-12	Szyman Catherine M.CEO	Tax withhold	4,568	—