QUALYS INC

Ticker: QLYS CUSIP: 74758T303 Class: COM

CSS LLC/IL's Holding History (CIK: 0001103646)

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

Q4 2025

Shares 6,305 Value ($000) $838 Avg Close $137.58 Range $121.01 - $155.47

Q3 2025

Shares 3,885 Value ($000) $514 Avg Close $135.59 Range $124.10 - $151.10

Q2 2025

Shares 1,735 Value ($000) $248 Avg Close $132.36 Range $112.61 - $143.16

Q1 2025

Shares 2,450 Value ($000) $309 Avg Close $135.24 Range $121.53 - $150.58

Q4 2024

Shares 3,830 Value ($000) $537 Avg Close $139.19 Range $119.17 - $170.00

Q3 2024

Shares 2,500 Value ($000) $321 Avg Close $132.00 Range $119.32 - $151.06

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	6,305	$838	$137.58	$121.01 - $155.47
Q3 2025	3,885	$514	$135.59	$124.10 - $151.10
Q2 2025	1,735	$248	$132.36	$112.61 - $143.16
Q1 2025	2,450	$309	$135.24	$121.53 - $150.58
Q4 2024	3,830	$537	$139.19	$119.17 - $170.00
Q3 2024	2,500	$321	$132.00	$119.32 - $151.06