MASIMO CORP

Ticker: MASI CUSIP: 574795100 Class: Common Stock

Quantum Portfolio Management LLC's Holding History (CIK: 0002003672)

Note: Option positions (PUT/CALL) are excluded.

Q3 2025

Shares 1,988 Value ($000) $293 Avg Close $151.39 Range $135.34 - $172.55

Q2 2025

Shares 1,246 Value ($000) $210 Avg Close $159.72 Range $133.70 - $174.50

Q1 2025

Shares 1,230 Value ($000) $205 Avg Close $173.51 Range $159.29 - $194.88

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	1,988	$293	$151.39	$135.34 - $172.55
Q2 2025	1,246	$210	$159.72	$133.70 - $174.50
Q1 2025	1,230	$205	$173.51	$159.29 - $194.88