QUALYS INC

Ticker: QLYS CUSIP: 74758T303 Class: COM

DF DENT & CO INC's Holding History (CIK: 0000934999)

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

Q4 2015

Shares 238,411 Value ($000) $7,889 Avg Close $35.27 Range $28.05 - $39.74

Q3 2015

Shares 233,677 Value ($000) $6,650 Avg Close $33.54 Range $25.32 - $42.97

Q2 2015

Shares 235,387 Value ($000) $9,498 Avg Close $44.87 Range $36.21 - $55.47

Q1 2015

Shares 5,100 Value ($000) $237 Avg Close $42.80 Range $35.01 - $50.00

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2015	238,411	$7,889	$35.27	$28.05 - $39.74
Q3 2015	233,677	$6,650	$33.54	$25.32 - $42.97
Q2 2015	235,387	$9,498	$44.87	$36.21 - $55.47
Q1 2015	5,100	$237	$42.80	$35.01 - $50.00