MASIMO CORP

Ticker: MASI CUSIP: 574795100 Class: Common Stock

THOMPSON INVESTMENT MANAGEMENT, INC.'s Holding History (CIK: 0001277279)

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

Q1 2015

Shares 6,750 Value ($000) $223 Avg Close $28.75 Range $25.12 - $33.16

Q4 2013

Shares 7,500 Value ($000) $219 Avg Close $27.99 Range $25.42 - $29.66

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2015	6,750	$223	$28.75	$25.12 - $33.16
Q4 2013	7,500	$219	$27.99	$25.42 - $29.66