MASIMO CORP

Ticker: MASI CUSIP: 574795100 Class: Common Stock

DUNCKER STREETT & CO INC's Holding History (CIK: 0001020585)

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

Q1 2021

Shares 75 Value ($000) $17 Avg Close $251.21 Range $217.65 - $284.86

Q4 2020

Shares 75 Value ($000) $20 Avg Close $249.38 Range $218.23 - $273.33

Q3 2020

Shares 75 Value ($000) $18 Avg Close $224.17 Range $203.81 - $248.88

Q2 2020

Shares 75 Value ($000) $17 Avg Close $219.47 Range $173.15 - $258.00

Q1 2020

Shares 75 Value ($000) $13 Avg Close $171.51 Range $143.90 - $187.85

Q4 2019

Shares 75 Value ($000) $12 Avg Close $150.33 Range $140.16 - $160.06

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2021	75	$17	$251.21	$217.65 - $284.86
Q4 2020	75	$20	$249.38	$218.23 - $273.33
Q3 2020	75	$18	$224.17	$203.81 - $248.88
Q2 2020	75	$17	$219.47	$173.15 - $258.00
Q1 2020	75	$13	$171.51	$143.90 - $187.85
Q4 2019	75	$12	$150.33	$140.16 - $160.06