Young Micah W 4

What Happened

• Micah W. Young, Chief Financial Officer of Masimo Corp (MASI), had performance-based restricted stock units (PSUs) vest on February 26, 2026, resulting in an award of 2,034 shares. No cash was paid for these shares (award).
• To satisfy tax withholding obligations, 1,123 of the vested shares were withheld (reported as a disposition) at a withholding value of $175.22 per share, totaling $196,772. The remaining vested shares were issued to Young.

Key Details

• Transaction date: February 26, 2026.
• Award: 2,034 shares (code A) reported as acquired at $0.00 (PSU vesting).
• Tax withholding/disposition: 1,123 shares (code F) withheld at $175.22/share, total $196,772.
• Shares owned after transaction: not specified in the details provided in this summary (not reported here).
• Footnotes: F1 — PSUs were granted March 3, 2023 and vested on Feb 26, 2026 upon achievement of pre-established performance goals for the three-year period ending Jan 3, 2026. F2 — The 1,123 shares were withheld by the issuer to satisfy tax withholding obligations.
• Filing: Form 4 filed on February 26, 2026 (same day as the reported transactions), indicating timely reporting.

Context

• This was not a cash purchase—these were performance-based restricted stock units that vested. The withholding of 1,123 shares is a routine administrative step to cover taxes and is not the same as a voluntary open-market sale.
• Vesting awards increase insiders’ equity stakes, but tax-withholding dispositions simply reduce the net shares delivered and should not be interpreted by themselves as a bullish or bearish signal.