LANE WENDY E 4

4 · MASIMO CORP · Filed May 5, 2026

AI-generated summary of this filing

Updated May 5, 2026

Masimo (MASI) Director Wendy Lane Receives RSU Award $200K

What Happened

Wendy E. Lane, a director of Masimo Corp (MASI), received a grant of 1,119 restricted stock units (RSUs) on April 23, 2026 valued at $178.71 each (total $199,976).
The filing also reports conversion/exercise activity on April 29, 2026: 1,225 derivative units were converted (reported as “acquired” at $0.00) and those 1,225 shares were immediately disposed (reported as “disposed” at $0.00). The filing shows no cash sale price for that conversion/disposition.

Key Details

Grant: 1,119 RSUs on 2026-04-23 at $178.71 per share — total reported value $199,976 (footnote F3).
Conversion/disposition: 1,225 derivative units converted and disposed on 2026-04-29 (both reported at $0.00) (footnote F2 relates to earlier RSU grant timing).
Shares owned after the transactions: not stated in the information provided in this summary (check the Form 4 for the insider’s post-transaction holdings).
Footnotes: F1 explains an RSU is the contingent right to receive one share upon vesting. F2 notes RSUs granted 2025-04-29 vest in full on the earlier of the first anniversary or the next annual meeting (these likely vested 2026-04-29). F3 describes vesting terms for the 2026-04-23 grant.
Filing date: Form 4 filed 2026-05-05 reporting transactions from 2026-04-23 and 2026-04-29. Form 4s are generally required within two business days of a transaction; consult the filing for timeliness details.

Context

RSUs are awards that convert into actual shares only upon vesting (F1). The April 29 entries are coded as exercise/conversion of a derivative (M) and show the converted shares were disposed the same day — the filing does not report a sale price for that conversion. This pattern can reflect vesting and immediate settlement or other administrative disposition; the Form 4 provides the raw transaction facts but not the insider’s motivation.
The April 23 item is an outright grant (an acquisition of derivative awards) worth about $200k; grants are an acquisition of economic exposure rather than an open-market purchase.

Form 4

Period: 2026-04-23

Director

Transactions

Exercise/Conversion
Common Stock
2026-04-29+1,225→ 2,608 total
Exercise/Conversion
Restricted Stock Units
[F1][F2]
2026-04-29−1,225→ 0 total
Exp: 2035-04-29→ Common Stock (1,225 underlying)
Award
Restricted Stock Units
[F1][F3]
2026-04-23$178.71/sh+1,119$199,976→ 2,238 total
Exp: 2036-04-23→ Common Stock (1,119 underlying)

Footnotes (3)

[F1]Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of the Issuer upon vesting of the RSU.
[F2]These RSUs were granted on April 29, 2025 and will vest in full on the earlier of the first anniversary of the grant date or the date of the next annual meeting of stockholders following the date of grant.
[F3]These RSUs were granted on April 23, 2026 and will vest in full on the earlier of the first anniversary of the grant date or the date of the next annual meeting of stockholders following the date of grant.

Signature

/s/ Micah Young, Attorney-In-Fact|2026-05-05

1 file