Hellmann Elisabeth A 4

What Happened Elisabeth A. Hellmann, Chief Human Resources Officer of Masimo Corp (MASI), received a grant of 5,985 restricted stock units (RSUs) on March 6, 2026. The award was granted at no cash cost to the insider (price reported $0.00) and is a derivative grant (RSUs), not an open-market purchase or sale.

Key Details

• Transaction date: March 6, 2026; Filing date (Accession): March 10, 2026.
• Award: 5,985 RSUs granted; reported acquisition price $0.00 (derivative award).
• Vesting: Award vests ratably over four years — 25% vests on each anniversary of the March 6, 2026 grant date (per footnote).
• Shares owned after transaction: Not disclosed in this filing.
• Footnotes: F1 — each RSU converts to one share upon vesting; F2 — vesting schedule described above.
• Timeliness: The filing was submitted four days after the grant; insider reports are typically required within two business days, so investors may note the delay.

Context RSU grants are compensation awards that convert into shares only as they vest, so they do not represent an immediate purchase of stock or a sale. Such grants are common executive compensation and do not by themselves indicate a buy/sell signal; they reflect company compensation policy and retention incentives.