Szyman Catherine M.
SEC insider (Form 3/4/5 filer). CIK 0001438538. Chief Executive Officer at MASIMO CORP (MASI) and 2 other issuers. 13 reported Form 4/5 transactions since Sep 2024; latest on Jun 10, 2026. Located in IRVINE, CA.
Companies Szyman Catherine M. has filed insider reports for
- MASIMO CORP (MASI): Director, Officer, Chief Executive Officer
- Inari Medical, Inc. (NARI): Director
- Edwards Lifesciences Corp (EW): Officer, CVP, Critical Care
Szyman Catherine M.
CIK: 0001438538
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Discretionary Trading P&L
Holdings
Transaction History (13 total)
- Jun 10, 2026MASI
MASIMO CORP
DispositionDirect7.6K shares at avg. $180.00$1.4M - Mar 11, 2026MASI
MASIMO CORP
Tax PaymentDirect1.1K shares at avg. $175.47$188K - Mar 11, 2026MASI
MASIMO CORP
ExerciseDirect2.1K shares- - Mar 6, 2026MASI
MASIMO CORP
AwardDirectRestricted Stock Units
39.9K shares- - Feb 12, 2026MASI
MASIMO CORP
ExerciseDirect11.1K shares at avg. $132.96$1.5M - Feb 12, 2026MASI
MASIMO CORP
Tax PaymentDirect4.6K shares- - Mar 11, 2025MASI
MASIMO CORP
AwardDirectNon-Qualified Stock Option (Right to Buy)
18.6K shares- - Mar 11, 2025MASI
MASIMO CORP
AwardDirectRestricted Stock Units
8.4K shares- - Feb 19, 2025NARI
Inari Medical, Inc.
Tender OfferDirect22.4K shares- - Feb 19, 2025NARI
Inari Medical, Inc.
DispositionDirectStock Option
49.7K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Jun 10, 2026 |  MASI MASIMO CORP | Disposition | 7,605 | $180.00 | $1,368,900 | Direct |
| Mar 11, 2026 | MASI MASIMO CORP | Tax Payment | 1,069 | $175.47 | $187,577 | Direct |
| Mar 11, 2026 | MASI MASIMO CORP | Exercise | 2,101 | - | $0 | Direct |
| Mar 6, 2026 | MASI MASIMO CORP | Award Restricted Stock Units | 39,904 | - | - | Direct |
| Feb 12, 2026 | MASI MASIMO CORP | Exercise | 11,141 | $132.96 | $1,481,307 | Direct |
| Feb 12, 2026 | MASI MASIMO CORP | Tax Payment | 4,568 | - | $0 | Direct |
| Mar 11, 2025 | MASI MASIMO CORP | Award Non-Qualified Stock Option (Right to Buy) | 18,617 | - | - | Direct |
| Mar 11, 2025 | MASI MASIMO CORP | Award Restricted Stock Units | 8,407 | - | - | Direct |
| Feb 19, 2025 |  NARI Inari Medical, Inc. | Tender Offer | 22,429 | - | - | Direct |
| Feb 19, 2025 | NARI Inari Medical, Inc. | Disposition Stock Option | 49,719 | - | - | Direct |
1-10 of 13 transactions