MASIMO CORP

Ticker: MASI CUSIP: 574795100 Class: Common Stock

Great Diamond Partners, LLC's Holding History (CIK: 0001801112)

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

Q4 2019

Shares 188 Value ($000) $29 Avg Close $150.33 Range $140.16 - $160.06

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2019	188	$29	$150.33	$140.16 - $160.06