MASIMO CORP

Ticker: MASI CUSIP: 574795100 Class: Common Stock

BlackRock, Inc.'s Holding History (CIK: 0002012383)

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

Q4 2025

Shares 8,855,619 Value ($000) $1,151,762 Avg Close $143.19 Range $129.77 - $157.72

Q3 2025

Shares 10,361,091 Value ($000) $1,528,779 Avg Close $151.39 Range $135.34 - $172.55

Q2 2025

Shares 10,507,326 Value ($000) $1,767,542 Avg Close $159.72 Range $133.70 - $174.50

Q1 2025

Shares 9,871,428 Value ($000) $1,644,580 Avg Close $173.51 Range $159.29 - $194.88

Q4 2024

Shares 8,698,213 Value ($000) $1,437,815 Avg Close $157.91 Range $131.60 - $180.97

Q3 2024

Shares 8,822,269 Value ($000) $1,176,273 Avg Close $116.03 Range $101.61 - $135.78

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	8,855,619	$1,151,762	$143.19	$129.77 - $157.72
Q3 2025	10,361,091	$1,528,779	$151.39	$135.34 - $172.55
Q2 2025	10,507,326	$1,767,542	$159.72	$133.70 - $174.50
Q1 2025	9,871,428	$1,644,580	$173.51	$159.29 - $194.88
Q4 2024	8,698,213	$1,437,815	$157.91	$131.60 - $180.97
Q3 2024	8,822,269	$1,176,273	$116.03	$101.61 - $135.78