MASIMO CORP

Ticker: MASI CUSIP: 574795100 Class: Common Stock

Horizon Investments, LLC's Holding History (CIK: 0001560717)

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

Q2 2015

Shares 5,507 Value ($000) $213 Avg Close $35.83 Range $32.33 - $39.91

Q1 2015

Shares 6,547 Value ($000) $216 Avg Close $28.75 Range $25.12 - $33.16

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2015	5,507	$213	$35.83	$32.33 - $39.91
Q1 2015	6,547	$216	$28.75	$25.12 - $33.16