MASIMO CORP

Ticker: MASI CUSIP: 574795100 Class: Common Stock

PRIVATE TRUST CO NA's Holding History (CIK: 0001277557)

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

Q4 2025

Shares 1 Value ($000) $0 Avg Close $143.19 Range $129.77 - $157.72

Q3 2025

Shares 1 Value ($000) $0 Avg Close $151.39 Range $135.34 - $172.55

Q2 2023

Shares 74 Value ($000) $12 Avg Close $174.09 Range $153.35 - $198.00

Q3 2022

Shares 2 Value ($000) $0 Avg Close $146.09 Range $122.68 - $172.74

Q2 2022

Shares 2 Value ($000) $0 Avg Close $133.79 Range $112.07 - $154.51

Q3 2014

Shares 135 Value ($000) $3 Avg Close $22.83 Range $19.30 - $24.75

Q2 2014

Shares 135 Value ($000) $3 Avg Close $24.80 Range $21.45 - $28.78

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1	$0	$143.19	$129.77 - $157.72
Q3 2025	1	$0	$151.39	$135.34 - $172.55
Q2 2023	74	$12	$174.09	$153.35 - $198.00
Q3 2022	2	$0	$146.09	$122.68 - $172.74
Q2 2022	2	$0	$133.79	$112.07 - $154.51
Q3 2014	135	$3	$22.83	$19.30 - $24.75
Q2 2014	135	$3	$24.80	$21.45 - $28.78