MASIMO CORP

Ticker: MASI CUSIP: 574795100 Class: Common Stock

Select Equity Group, L.P.'s Holding History (CIK: 0001592643)

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

Q3 2020

Shares 58,134 Value ($000) $13,723,112 Avg Close $224.17 Range $203.81 - $248.88

Q2 2020

Shares 54,003 Value ($000) $12,312,144 Avg Close $219.47 Range $173.15 - $258.00

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2020	58,134	$13,723,112	$224.17	$203.81 - $248.88
Q2 2020	54,003	$12,312,144	$219.47	$173.15 - $258.00