Szyman Catherine M. 4

What Happened

• Catherine M. Szyman, CEO and Director of Masimo Corp (ticker: MASI), received a grant of 39,904 restricted stock units (RSUs) on March 6, 2026.
• The filing shows an acquisition price of $0.00 (award/derivative), which reflects an equity grant rather than an open‑market purchase or sale. The filing does not state a dollar market value for the grant.

Key Details

• Transaction date: 2026-03-06; Form 4 filed 2026-03-10 (no late filing indicated in the report).
• Grant: 39,904 RSUs at $0.00 (classified as a derivative award).
• Shares owned after transaction: Not specified in this Form 4 filing.
• Footnotes: Each RSU is the contingent right to one share upon vesting. The award vests ratably over four years, with 25% vesting on each anniversary of the March 6, 2026 grant date.

Context

• RSUs are a common form of executive compensation and represent a promise to issue shares upon vesting; they are not an immediate cash purchase or sale.
• Because this is a grant (not a purchase), it is typically a compensation event rather than a direct signal of immediate buying or selling activity by the insider.