QUALYS INC

Ticker: QLYS CUSIP: 74758T303 Class: COM

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP's Holding History (CIK: 0001164508)

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

Q4 2025

Shares 366,844 Value ($000) $48,754 Avg Close $137.58 Range $121.01 - $155.47

Q3 2025

Shares 93,827 Value ($000) $12,416 Avg Close $135.59 Range $124.10 - $151.10

Q2 2025

Shares 72,841 Value ($000) $10,407 Avg Close $132.36 Range $112.61 - $143.16

Q1 2025

Shares 37,056 Value ($000) $4,666 Avg Close $135.24 Range $121.53 - $150.58

Q4 2024

Shares 51,934 Value ($000) $7,282 Avg Close $139.19 Range $119.17 - $170.00

Q3 2024

Shares 39,193 Value ($000) $5,035 Avg Close $132.00 Range $119.32 - $151.06

Q2 2024

Shares 95,555 Value ($000) $14 Avg Close $152.28 Range $131.07 - $174.20

Q1 2024

Shares 185,896 Value ($000) $31 Avg Close $176.57 Range $156.51 - $201.03

Q4 2023

Shares 111,974 Value ($000) $22 Avg Close $174.91 Range $149.17 - $206.35

Q3 2023

Shares 48,857 Value ($000) $7 Avg Close $143.84 Range $122.53 - $157.88

Q2 2023

Shares 89,774 Value ($000) $12 Avg Close $123.00 Range $107.00 - $134.28

Q1 2023

Shares 198,520 Value ($000) $26 Avg Close $117.19 Range $101.10 - $130.63

Q4 2022

Shares 251,780 Value ($000) $28 Avg Close $124.92 Range $107.69 - $148.51

Q3 2022

Shares 223,805 Value ($000) $31,196 Avg Close $140.93 Range $114.02 - $162.36

Q2 2022

Shares 35,788 Value ($000) $4,514 Avg Close $130.99 Range $110.74 - $150.10

Q1 2022

Shares 29,520 Value ($000) $4,204 Avg Close $127.72 Range $108.10 - $145.50

Q4 2021

Shares 16,255 Value ($000) $2,231 Avg Close $127.76 Range $106.48 - $142.94

Q4 2020

Shares 63,757 Value ($000) $7,770 Avg Close $98.93 Range $86.65 - $126.30

Q3 2020

Shares 100,300 Value ($000) $9,830 Avg Close $106.95 Range $90.93 - $125.22

Q2 2020

Shares 48,000 Value ($000) $4,993 Avg Close $104.77 Range $81.80 - $119.20

Q1 2019

Shares 39,200 Value ($000) $3,243 Avg Close $83.25 Range $69.35 - $97.12

Q4 2018

Shares 29,900 Value ($000) $2,235 Avg Close $75.36 Range $65.94 - $89.35

Q3 2018

Shares 64,735 Value ($000) $5,768 Avg Close $89.90 Range $82.91 - $98.30

Q2 2018

Shares 139,019 Value ($000) $11,719 Avg Close $80.38 Range $68.20 - $97.75

Q1 2018

Shares 128,685 Value ($000) $9,362 Avg Close $69.00 Range $57.20 - $79.40

Q4 2017

Shares 16,471 Value ($000) $978 Avg Close $56.22 Range $50.00 - $62.35

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	366,844	$48,754	$137.58	$121.01 - $155.47
Q3 2025	93,827	$12,416	$135.59	$124.10 - $151.10
Q2 2025	72,841	$10,407	$132.36	$112.61 - $143.16
Q1 2025	37,056	$4,666	$135.24	$121.53 - $150.58
Q4 2024	51,934	$7,282	$139.19	$119.17 - $170.00
Q3 2024	39,193	$5,035	$132.00	$119.32 - $151.06
Q2 2024	95,555	$14	$152.28	$131.07 - $174.20
Q1 2024	185,896	$31	$176.57	$156.51 - $201.03
Q4 2023	111,974	$22	$174.91	$149.17 - $206.35
Q3 2023	48,857	$7	$143.84	$122.53 - $157.88
Q2 2023	89,774	$12	$123.00	$107.00 - $134.28
Q1 2023	198,520	$26	$117.19	$101.10 - $130.63
Q4 2022	251,780	$28	$124.92	$107.69 - $148.51
Q3 2022	223,805	$31,196	$140.93	$114.02 - $162.36
Q2 2022	35,788	$4,514	$130.99	$110.74 - $150.10
Q1 2022	29,520	$4,204	$127.72	$108.10 - $145.50
Q4 2021	16,255	$2,231	$127.76	$106.48 - $142.94
Q4 2020	63,757	$7,770	$98.93	$86.65 - $126.30
Q3 2020	100,300	$9,830	$106.95	$90.93 - $125.22
Q2 2020	48,000	$4,993	$104.77	$81.80 - $119.20
Q1 2019	39,200	$3,243	$83.25	$69.35 - $97.12
Q4 2018	29,900	$2,235	$75.36	$65.94 - $89.35
Q3 2018	64,735	$5,768	$89.90	$82.91 - $98.30
Q2 2018	139,019	$11,719	$80.38	$68.20 - $97.75
Q1 2018	128,685	$9,362	$69.00	$57.20 - $79.40
Q4 2017	16,471	$978	$56.22	$50.00 - $62.35