Hataishi Paul 4

What Happened

• Paul Hataishi, SVP and Chief Accounting Officer of Masimo Corporation, had 13,317 shares of Masimo common stock canceled and converted into cash at $180.00 per share as part of Masimo’s merger with Danaher — resulting in $2,397,060 in cash consideration.
• In addition, several outstanding restricted stock unit (RSU) awards (627; 910; 3,224; 3,380; and 3,134 RSUs) were reported as dispositions to the issuer on the same date. Those RSUs were not paid out in cash on the Form 4 (price/value shown as N/A) because, under the merger agreement, Masimo RSUs were assumed/converted by the acquiring company (Danaher) into awards of Parent stock under a conversion formula.

Key Details

• Transaction date: June 10, 2026; Filing date: June 12, 2026 (filing appears timely).
• Cash consideration: 13,317 shares × $180.00 = $2,397,060.
• RSUs reported as disposed: 627; 910; 3,224; 3,380; 3,134 (values not reported on Form 4; converted/assumed per merger terms).
• Notable footnotes: F1–F3 describe the June 10, 2026 merger with Danaher that cancelled outstanding Masimo common stock for $180/ share and provided for assumption/conversion of most RSUs; F4–F8 describe the grant dates and vesting schedules of the RSU awards shown.
• Shares owned after transaction: the filing does not specify Hataishi’s remaining share/award holdings post-merger on the Form 4.

Context

• This was not an open-market sale but a merger cash-out and RSU assumption under the Agreement and Plan of Merger — a routine corporate transaction where outstanding common shares were cancelled for cash and most RSUs were converted into awards of the acquirer. Such dispositions reflect merger terms rather than an independent insider decision to sell into the market.