QUALYS INC

Ticker: QLYS CUSIP: 74758T303 Class: COM

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0001081019)

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

Q4 2025

Shares 34,118 Value ($000) $4,534 Avg Close $137.58 Range $121.01 - $155.47

Q3 2025

Shares 34,846 Value ($000) $4,611 Avg Close $135.59 Range $124.10 - $151.10

Q2 2025

Shares 34,055 Value ($000) $4,865 Avg Close $132.36 Range $112.61 - $143.16

Q1 2025

Shares 34,055 Value ($000) $4,289 Avg Close $135.24 Range $121.53 - $150.58

Q4 2024

Shares 34,446 Value ($000) $4,830 Avg Close $139.19 Range $119.17 - $170.00

Q3 2024

Shares 34,955 Value ($000) $4,490 Avg Close $132.00 Range $119.32 - $151.06

Q2 2024

Shares 36,095 Value ($000) $5,147 Avg Close $152.28 Range $131.07 - $174.20

Q1 2024

Shares 36,870 Value ($000) $6,152 Avg Close $176.57 Range $156.51 - $201.03

Q4 2023

Shares 38,891 Value ($000) $7,634 Avg Close $174.91 Range $149.17 - $206.35

Q3 2023

Shares 40,841 Value ($000) $6,230 Avg Close $143.84 Range $122.53 - $157.88

Q2 2023

Shares 44,949 Value ($000) $5,806 Avg Close $123.00 Range $107.00 - $134.28

Q1 2023

Shares 44,386 Value ($000) $5,771 Avg Close $117.19 Range $101.10 - $130.63

Q4 2022

Shares 45,439 Value ($000) $5,100 Avg Close $124.92 Range $107.69 - $148.51

Q3 2022

Shares 45,515 Value ($000) $6,344 Avg Close $140.93 Range $114.02 - $162.36

Q2 2022

Shares 46,660 Value ($000) $5,886 Avg Close $130.99 Range $110.74 - $150.10

Q1 2022

Shares 42,697 Value ($000) $6,080 Avg Close $127.72 Range $108.10 - $145.50

Q4 2021

Shares 46,585 Value ($000) $6,392 Avg Close $127.76 Range $106.48 - $142.94

Q3 2021

Shares 45,734 Value ($000) $5,090 Avg Close $109.53 Range $97.02 - $121.07

Q2 2021

Shares 46,984 Value ($000) $4,731 Avg Close $101.79 Range $92.00 - $108.98

Q1 2021

Shares 51,413 Value ($000) $5,387 Avg Close $111.92 Range $90.26 - $148.84

Q4 2020

Shares 51,538 Value ($000) $6,281 Avg Close $98.93 Range $86.65 - $126.30

Q3 2020

Shares 51,510 Value ($000) $5,048 Avg Close $106.95 Range $90.93 - $125.22

Q2 2020

Shares 51,370 Value ($000) $5,344 Avg Close $104.77 Range $81.80 - $119.20

Q1 2020

Shares 51,170 Value ($000) $4,451 Avg Close $83.95 Range $63.37 - $94.72

Q4 2019

Shares 51,424 Value ($000) $4,287 Avg Close $82.92 Range $73.76 - $88.91

Q3 2019

Shares 52,997 Value ($000) $4,005 Avg Close $83.33 Range $72.76 - $92.19

Q2 2019

Shares 52,364 Value ($000) $4,560 Avg Close $86.26 Range $78.10 - $95.99

Q1 2019

Shares 52,170 Value ($000) $4,317 Avg Close $83.25 Range $69.35 - $97.12

Q4 2018

Shares 53,330 Value ($000) $3,986 Avg Close $75.36 Range $65.94 - $89.35

Q3 2018

Shares 51,596 Value ($000) $4,597 Avg Close $89.90 Range $82.91 - $98.30

Q2 2018

Shares 51,615 Value ($000) $4,351 Avg Close $80.38 Range $68.20 - $97.75

Q1 2018

Shares 48,982 Value ($000) $3,563 Avg Close $69.00 Range $57.20 - $79.40

Q4 2017

Shares 50,700 Value ($000) $3,009 Avg Close $56.22 Range $50.00 - $62.35

Q3 2017

Shares 50,277 Value ($000) $2,604 Avg Close $45.89 Range $39.45 - $53.55

Q2 2017

Shares 55,633 Value ($000) $2,270 Avg Close $40.16 Range $34.80 - $44.35

Q1 2017

Shares 53,542 Value ($000) $2,029 Avg Close $35.13 Range $31.80 - $38.38

Q4 2016

Shares 56,142 Value ($000) $1,777 Avg Close $35.20 Range $30.61 - $39.67

Q3 2016

Shares 57,642 Value ($000) $2,201 Avg Close $33.49 Range $29.69 - $38.32

Q2 2016

Shares 57,042 Value ($000) $1,700 Avg Close $28.08 Range $23.77 - $32.65

Q1 2016

Shares 52,680 Value ($000) $1,333 Avg Close $25.93 Range $16.96 - $32.48

Q4 2015

Shares 46,052 Value ($000) $1,524 Avg Close $35.27 Range $28.05 - $39.74

Q3 2015

Shares 45,289 Value ($000) $1,289 Avg Close $33.54 Range $25.32 - $42.97

Q2 2015

Shares 45,389 Value ($000) $1,831 Avg Close $44.87 Range $36.21 - $55.47

Q1 2015

Shares 36,826 Value ($000) $1,712 Avg Close $42.80 Range $35.01 - $50.00

Q4 2014

Shares 37,326 Value ($000) $1,409 Avg Close $33.37 Range $26.00 - $40.74

Q3 2014

Shares 37,167 Value ($000) $989 Avg Close $25.21 Range $22.65 - $29.70

Q2 2014

Shares 38,396 Value ($000) $986 Avg Close $22.74 Range $18.00 - $26.88

Q1 2014

Shares 26,956 Value ($000) $685 Avg Close $26.98 Range $20.37 - $29.94

Q4 2013

Shares 26,956 Value ($000) $623 Avg Close $22.22 Range $19.56 - $24.90

Q3 2013

Shares 26,656 Value ($000) $570 Avg Close $18.76 Range $14.98 - $23.21

Q2 2013

Shares 25,956 Value ($000) $418 Avg Close $12.98 Range $10.15 - $16.25

Q1 2013

Shares 15,100 Value ($000) $186 Avg Close $13.31 Range $10.18 - $16.38

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	34,118	$4,534	$137.58	$121.01 - $155.47
Q3 2025	34,846	$4,611	$135.59	$124.10 - $151.10
Q2 2025	34,055	$4,865	$132.36	$112.61 - $143.16
Q1 2025	34,055	$4,289	$135.24	$121.53 - $150.58
Q4 2024	34,446	$4,830	$139.19	$119.17 - $170.00
Q3 2024	34,955	$4,490	$132.00	$119.32 - $151.06
Q2 2024	36,095	$5,147	$152.28	$131.07 - $174.20
Q1 2024	36,870	$6,152	$176.57	$156.51 - $201.03
Q4 2023	38,891	$7,634	$174.91	$149.17 - $206.35
Q3 2023	40,841	$6,230	$143.84	$122.53 - $157.88
Q2 2023	44,949	$5,806	$123.00	$107.00 - $134.28
Q1 2023	44,386	$5,771	$117.19	$101.10 - $130.63
Q4 2022	45,439	$5,100	$124.92	$107.69 - $148.51
Q3 2022	45,515	$6,344	$140.93	$114.02 - $162.36
Q2 2022	46,660	$5,886	$130.99	$110.74 - $150.10
Q1 2022	42,697	$6,080	$127.72	$108.10 - $145.50
Q4 2021	46,585	$6,392	$127.76	$106.48 - $142.94
Q3 2021	45,734	$5,090	$109.53	$97.02 - $121.07
Q2 2021	46,984	$4,731	$101.79	$92.00 - $108.98
Q1 2021	51,413	$5,387	$111.92	$90.26 - $148.84
Q4 2020	51,538	$6,281	$98.93	$86.65 - $126.30
Q3 2020	51,510	$5,048	$106.95	$90.93 - $125.22
Q2 2020	51,370	$5,344	$104.77	$81.80 - $119.20
Q1 2020	51,170	$4,451	$83.95	$63.37 - $94.72
Q4 2019	51,424	$4,287	$82.92	$73.76 - $88.91
Q3 2019	52,997	$4,005	$83.33	$72.76 - $92.19
Q2 2019	52,364	$4,560	$86.26	$78.10 - $95.99
Q1 2019	52,170	$4,317	$83.25	$69.35 - $97.12
Q4 2018	53,330	$3,986	$75.36	$65.94 - $89.35
Q3 2018	51,596	$4,597	$89.90	$82.91 - $98.30
Q2 2018	51,615	$4,351	$80.38	$68.20 - $97.75
Q1 2018	48,982	$3,563	$69.00	$57.20 - $79.40
Q4 2017	50,700	$3,009	$56.22	$50.00 - $62.35
Q3 2017	50,277	$2,604	$45.89	$39.45 - $53.55
Q2 2017	55,633	$2,270	$40.16	$34.80 - $44.35
Q1 2017	53,542	$2,029	$35.13	$31.80 - $38.38
Q4 2016	56,142	$1,777	$35.20	$30.61 - $39.67
Q3 2016	57,642	$2,201	$33.49	$29.69 - $38.32
Q2 2016	57,042	$1,700	$28.08	$23.77 - $32.65
Q1 2016	52,680	$1,333	$25.93	$16.96 - $32.48
Q4 2015	46,052	$1,524	$35.27	$28.05 - $39.74
Q3 2015	45,289	$1,289	$33.54	$25.32 - $42.97
Q2 2015	45,389	$1,831	$44.87	$36.21 - $55.47
Q1 2015	36,826	$1,712	$42.80	$35.01 - $50.00
Q4 2014	37,326	$1,409	$33.37	$26.00 - $40.74
Q3 2014	37,167	$989	$25.21	$22.65 - $29.70
Q2 2014	38,396	$986	$22.74	$18.00 - $26.88
Q1 2014	26,956	$685	$26.98	$20.37 - $29.94
Q4 2013	26,956	$623	$22.22	$19.56 - $24.90
Q3 2013	26,656	$570	$18.76	$14.98 - $23.21
Q2 2013	25,956	$418	$12.98	$10.15 - $16.25
Q1 2013	15,100	$186	$13.31	$10.18 - $16.38