MASIMO CORP

Ticker: MASI CUSIP: 574795100 Class: Common Stock

ADAR1 Capital Management, LLC's Holding History (CIK: 0001940272)

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

Q4 2025

Shares 15,000 Value ($000) $1,951 Avg Close $143.19 Range $129.77 - $157.72

Q3 2025

Shares 15,000 Value ($000) $2,213 Avg Close $151.39 Range $135.34 - $172.55

Q3 2024

Shares 3,894 Value ($000) $519 Avg Close $116.03 Range $101.61 - $135.78

Q2 2024

Shares 38 Value ($000) $5 Avg Close $131.69 Range $112.85 - $147.89

Q1 2024

Shares 38 Value ($000) $6 Avg Close $129.12 Range $107.57 - $153.93

Q4 2023

Shares 58 Value ($000) $7 Avg Close $93.21 Range $75.22 - $122.60

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	15,000	$1,951	$143.19	$129.77 - $157.72
Q3 2025	15,000	$2,213	$151.39	$135.34 - $172.55
Q3 2024	3,894	$519	$116.03	$101.61 - $135.78
Q2 2024	38	$5	$131.69	$112.85 - $147.89
Q1 2024	38	$6	$129.12	$107.57 - $153.93
Q4 2023	58	$7	$93.21	$75.22 - $122.60