GLAUKOS CORP

Ticker: GKOS CUSIP: 377322102 Class: EQTY

Rock Springs Capital Management LP's Holding History (CIK: 0001595725)

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

Q2 2017

Shares 62,500 Value ($000) $2,592 Avg Close $43.08 Range $36.51 - $52.48

Q1 2017

Shares 62,500 Value ($000) $3,206 Avg Close $43.59 Range $33.18 - $52.49

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2017	62,500	$2,592	$43.08	$36.51 - $52.48
Q1 2017	62,500	$3,206	$43.59	$33.18 - $52.49