MASIMO CORP

Ticker: MASI CUSIP: 574795100 Class: Common Stock

OAK RIDGE INVESTMENTS LLC's Holding History (CIK: 0001054554)

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

Q4 2020

Shares 4,305 Value ($000) $1,155 Avg Close $249.38 Range $218.23 - $273.33

Q3 2020

Shares 4,422 Value ($000) $1,044 Avg Close $224.17 Range $203.81 - $248.88

Q2 2020

Shares 4,368 Value ($000) $996 Avg Close $219.47 Range $173.15 - $258.00

Q1 2020

Shares 5,411 Value ($000) $958 Avg Close $171.51 Range $143.90 - $187.85

Q4 2019

Shares 4,014 Value ($000) $634 Avg Close $150.33 Range $140.16 - $160.06

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2020	4,305	$1,155	$249.38	$218.23 - $273.33
Q3 2020	4,422	$1,044	$224.17	$203.81 - $248.88
Q2 2020	4,368	$996	$219.47	$173.15 - $258.00
Q1 2020	5,411	$958	$171.51	$143.90 - $187.85
Q4 2019	4,014	$634	$150.33	$140.16 - $160.06