QUALYS INC

Ticker: QLYS CUSIP: 74758T303 Class: COM

Linden Thomas Advisory Services, LLC's Holding History (CIK: 0001965702)

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

Q4 2025

Shares 1,657 Value ($000) $220 Avg Close $137.58 Range $121.01 - $155.47

Q3 2025

Shares 1,648 Value ($000) $218 Avg Close $135.59 Range $124.10 - $151.10

Q2 2025

Shares 1,585 Value ($000) $226 Avg Close $132.36 Range $112.61 - $143.16

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,657	$220	$137.58	$121.01 - $155.47
Q3 2025	1,648	$218	$135.59	$124.10 - $151.10
Q2 2025	1,585	$226	$132.36	$112.61 - $143.16