MASIMO CORP

Ticker: MASI CUSIP: 574795100 Class: Common Stock

STEPHENS INC /AR/'s Holding History (CIK: 0000757657)

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

Q1 2020

Shares 1,197 Value ($000) $212 Avg Close $171.51 Range $143.90 - $187.85

Q3 2019

Shares 1,840 Value ($000) $274 Avg Close $151.90 Range $139.36 - $160.25

Q2 2019

Shares 1,890 Value ($000) $281 Avg Close $137.22 Range $118.93 - $148.93

Q1 2019

Shares 2,040 Value ($000) $282 Avg Close $125.54 Range $101.87 - $139.48

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2020	1,197	$212	$171.51	$143.90 - $187.85
Q3 2019	1,840	$274	$151.90	$139.36 - $160.25
Q2 2019	1,890	$281	$137.22	$118.93 - $148.93
Q1 2019	2,040	$282	$125.54	$101.87 - $139.48