QUALYS INC

Ticker: QLYS CUSIP: 74758T303 Class: COM

CASTLEARK MANAGEMENT LLC's Holding History (CIK: 0001106832)

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

Q1 2015

Shares 207,418 Value ($000) $9,641 Avg Close $42.80 Range $35.01 - $50.00

Q4 2014

Shares 288,411 Value ($000) $10,888 Avg Close $33.37 Range $26.00 - $40.74

Q3 2013

Shares 272,950 Value ($000) $7,260 Avg Close $18.76 Range $14.98 - $23.21

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2015	207,418	$9,641	$42.80	$35.01 - $50.00
Q4 2014	288,411	$10,888	$33.37	$26.00 - $40.74
Q3 2013	272,950	$7,260	$18.76	$14.98 - $23.21