MASIMO CORP

Ticker: MASI CUSIP: 574795100 Class: Common Stock

CSS LLC/IL's Holding History (CIK: 0001103646)

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

Q2 2019

Shares 900 Value ($000) $134 Avg Close $137.22 Range $118.93 - $148.93

Q4 2014

Shares 8,856 Value ($000) $233 Avg Close $24.68 Range $21.03 - $27.15

Q3 2014

Shares 20,346 Value ($000) $433 Avg Close $22.83 Range $19.30 - $24.75

Q2 2014

Shares 20,346 Value ($000) $480 Avg Close $24.80 Range $21.45 - $28.78

Q1 2014

Shares 20,346 Value ($000) $556 Avg Close $28.52 Range $25.08 - $32.20

Q4 2013

Shares 21,746 Value ($000) $636 Avg Close $27.99 Range $25.42 - $29.66

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2019	900	$134	$137.22	$118.93 - $148.93
Q4 2014	8,856	$233	$24.68	$21.03 - $27.15
Q3 2014	20,346	$433	$22.83	$19.30 - $24.75
Q2 2014	20,346	$480	$24.80	$21.45 - $28.78
Q1 2014	20,346	$556	$28.52	$25.08 - $32.20
Q4 2013	21,746	$636	$27.99	$25.42 - $29.66