GLAUKOS CORP

Ticker: GKOS CUSIP: 377322102 Class: EQTY

Spark Investment Management LLC's Holding History (CIK: 0001554871)

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

Q2 2017

Shares 17,200 Value ($000) $713 Avg Close $43.08 Range $36.51 - $52.48

Q2 2016

Shares 84,400 Value ($000) $2,461 Avg Close $23.15 Range $16.26 - $30.01

Q1 2016

Shares 17,800 Value ($000) $300 Avg Close $17.34 Range $14.25 - $25.97

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2017	17,200	$713	$43.08	$36.51 - $52.48
Q2 2016	84,400	$2,461	$23.15	$16.26 - $30.01
Q1 2016	17,800	$300	$17.34	$14.25 - $25.97