MASIMO CORP

Nasdaq:MASI

Electromedical & Electrotherapeutic Apparatus·IRVINE, CA

Masimo Corporation is an American health technology and consumer electronics company headquartered in Irvine, California. The company develops patient monitoring devices, non-invasive sensors, and related software platforms used in hospital and home settings.

CEO

Szyman Catherine M.

CFO

Young Micah W

All Filings(1001 total)

TypeDateAccessionPeriodSize

SCHEDULE 13G/A

Mar 6, 2026

0000315066-26-000661

—

11.1 KB

Mar 3, 2026

0000937556-26-000021FORM 4

Feb 27, 2026

8.8 KB

DFAN14A

Feb 27, 2026

0001193125-26-082686DFAN14A

—

48.5 KB

10-K

Feb 27, 2026

0000937556-26-00001710-K

Jan 3, 2026

24.1 MB

Feb 26, 2026

0000937556-26-000019FORM 4

Feb 26, 2026

6.3 KB

SCHEDULE 13D/A

Feb 17, 2026

0000902664-26-001168

—

13.7 KB

DFAN14A

Feb 17, 2026

0001193125-26-055065DFAN14A

—

737.1 KB

DEFA14A

Feb 17, 2026

0001104659-26-016485DEFA14A

—

184.3 KB

DEFA14A

Feb 17, 2026

0001104659-26-016483DEFA14A

—

30.1 KB

DEFA14A

Feb 17, 2026

0001104659-26-015913DEFA14A

—

748.5 KB

8-K

Feb 17, 2026

0001104659-26-015904FORM 8-K

Feb 16, 2026

1.1 MB

SCHEDULE 13G/A

Feb 13, 2026

0001213900-26-016680

—

17.1 KB

Feb 13, 2026

0000937556-26-000010FORM 4

Feb 12, 2026

8.5 KB

Jan 30, 2026

0000937556-26-000008FORM 4

Jan 28, 2026

12.4 KB

144

Jan 28, 2026

0001921094-26-000062

—

4.1 KB

SCHEDULE 13G/A

Jan 21, 2026

0002052113-26-000210

—

10.7 KB

8-K

Jan 12, 2026

0000937556-26-0000058-K

Jan 12, 2026

3.5 MB

144

Dec 11, 2025

0001921094-25-001529

—

4.7 KB

8-K

Dec 3, 2025

0000937556-25-0001758-K

Dec 3, 2025

11.1 MB

8-K

Dec 1, 2025

0000937556-25-0001718-K

Dec 1, 2025

613.3 KB

144

Nov 28, 2025

0001921094-25-001435

—

4.6 KB

Nov 17, 2025

0000937556-25-000166FORM 4

Nov 13, 2025

8.2 KB

SCHEDULE 13G/A

Nov 12, 2025

0001213900-25-109459

—

17.4 KB

10-Q

Nov 4, 2025

0000937556-25-00016110-Q

Sep 27, 2025

13.6 MB

8-K

Nov 4, 2025

0000937556-25-0001608-K

Nov 4, 2025

3.5 MB

25 filings shown