MASIMO CORP

Ticker: MASI CUSIP: 574795100 Class: Common Stock

Robeco Schweiz AG's Holding History (CIK: 0001418427)

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

Q1 2018

Shares 614 Value ($000) $54 Avg Close $87.17 Range $80.69 - $96.45

Q4 2017

Shares 325 Value ($000) $28 Avg Close $86.74 Range $84.05 - $91.04

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2018	614	$54	$87.17	$80.69 - $96.45
Q4 2017	325	$28	$86.74	$84.05 - $91.04