David A. Siegel Qualys, Inc. Transaction History

Two Sigma Advisers, LP

$47 Billion
Q3 2025

A detailed history of David A. Siegel (Two Sigma Advisers, LP) transactions in Qualys, Inc. stock. As of the latest transaction made, Two Sigma Advisers, LP holds 70,600 shares of QLYS stock, worth $10.1 Million. This represents 0.02% of its overall portfolio holdings.

Number of Shares

70,600

Previous 111,600 36.74%

Holding current value

$10.1 Million

Previous $15.9 Million 41.41%

% of portfolio

0.02%

Previous 0.03%

33 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2025 Nov 14, 2025	SELL	$127.89 - $150.07 $5.24 Million - $6.15 Million	-41,000 Reduced 36.74%	70,600 $9.34 Million
Q2 2025 Aug 14, 2025	SELL	$115.21 - $142.87 $334,109 - $414,323	-2,900 Reduced 2.53%	111,600 $15.9 Million
Q1 2025 May 15, 2025	BUY	$121.57 - $147.7 $5.64 Million - $6.85 Million	46,400 Added 68.14%	114,500 $14.4 Million
Q4 2024 Feb 14, 2025	SELL	$119.24 - $159.23 $7.2 Million - $9.62 Million	-60,400 Reduced 47.0%	68,100 $9.55 Million
Q3 2024 Nov 14, 2024	SELL	$120.88 - $149.14 $2.31 Million - $2.85 Million	-19,100 Reduced 12.94%	128,500 $16.5 Million

Q2 2024 Aug 14, 2024	BUY	$132.78 - $172.11 $2.63 Million - $3.41 Million	19,800 Added 15.49%	147,600 $21 Million
Q1 2024 May 15, 2024	SELL	$159.47 - $198.19 $18 Million - $22.4 Million	-113,100 Reduced 46.95%	127,800 $21.3 Million
Q4 2023 Feb 14, 2024	BUY	$151.05 - $205.89 $1.86 Million - $2.53 Million	12,300 Added 5.38%	240,900 $47.3 Million
Q3 2023 Nov 14, 2023	SELL	$124.26 - $157.29 $2.47 Million - $3.13 Million	-19,900 Reduced 8.01%	228,600 $34.9 Million
Q2 2023 Aug 14, 2023	SELL	$107.64 - $131.69 $3.42 Million - $4.19 Million	-31,800 Reduced 11.34%	248,500 $32.1 Million
Q1 2023 May 15, 2023	SELL	$101.86 - $130.02 $2.4 Million - $3.07 Million	-23,600 Reduced 7.77%	280,300 $36.4 Million
Q4 2022 Feb 14, 2023	BUY	$109.4 - $146.03 $54,700 - $73,015	500 Added 0.16%	303,900 $34.1 Million
Q3 2022 Nov 14, 2022	BUY	$118.93 - $160.02 $35,679 - $48,006	300 Added 0.1%	303,400 $42.3 Million
Q2 2022 Aug 15, 2022	SELL	$112.45 - $149.65 $551,005 - $733,285	-4,900 Reduced 1.59%	303,100 $38.2 Million
Q1 2022 May 16, 2022	SELL	$111.19 - $143.93 $922,877 - $1.19 Million	-8,300 Reduced 2.62%	308,000 $43.9 Million
Q4 2021 Feb 14, 2022	BUY	$108.43 - $140.98 $2.84 Million - $3.69 Million	26,200 Added 9.03%	316,300 $43.4 Million
Q3 2021 Nov 15, 2021	BUY	$98.68 - $119.76 $15.8 Million - $19.2 Million	160,100 Added 123.15%	290,100 $32.3 Million
Q2 2021 Aug 16, 2021	BUY	$94.38 - $108.33 $1 Million - $1.15 Million	10,600 Added 8.88%	130,000 $13.1 Million
Q1 2021 May 17, 2021	SELL	$91.75 - $145.3 $4.69 Million - $7.42 Million	-51,100 Reduced 29.97%	119,400 $12.5 Million
Q4 2020 Feb 16, 2021	BUY	$87.85 - $125.48 $2.26 Million - $3.22 Million	25,700 Added 17.75%	170,500 $20.8 Million
Q3 2020 Nov 16, 2020	BUY	$93.84 - $124.11 $2.78 Million - $3.67 Million	29,600 Added 25.69%	144,800 $14.2 Million
Q2 2020 Aug 14, 2020	SELL	$82.8 - $117.93 $778,320 - $1.11 Million	-9,400 Reduced 7.54%	115,200 $12 Million
Q1 2020 May 15, 2020	SELL	$68.0 - $94.32 $1.8 Million - $2.49 Million	-26,400 Reduced 17.48%	124,600 $10.8 Million
Q4 2019 Feb 14, 2020	BUY	$74.68 - $88.3 $2.84 Million - $3.36 Million	38,000 Added 33.63%	151,000 $12.6 Million
Q3 2019 Nov 14, 2019	BUY	$73.98 - $91.45 $1.44 Million - $1.78 Million	19,500 Added 20.86%	113,000 $8.54 Million
Q2 2019 Aug 14, 2019	BUY	$80.64 - $91.77 $201,600 - $229,425	2,500 Added 2.75%	93,500 $8.14 Million
Q1 2019 May 15, 2019	SELL	$69.55 - $96.41 $1.17 Million - $1.62 Million	-16,800 Reduced 15.58%	91,000 $7.53 Million
Q4 2018 Feb 14, 2019	BUY	$67.88 - $86.05 $319,036 - $404,435	4,700 Added 4.56%	107,800 $8.06 Million
Q3 2018 Nov 14, 2018	BUY	$84.5 - $97.05 $2.12 Million - $2.44 Million	25,100 Added 32.18%	103,100 $9.19 Million
Q2 2018 Aug 14, 2018	BUY	$71.85 - $97.05 $819,089 - $1.11 Million	11,400 Added 17.12%	78,000 $6.58 Million
Q1 2018 May 15, 2018	SELL	$58.3 - $78.45 $3.08 Million - $4.15 Million	-52,900 Reduced 44.27%	66,600 $4.85 Million
Q4 2017 Feb 14, 2018	BUY	$50.35 - $61.9 $1.68 Million - $2.07 Million	33,400 Added 38.79%	119,500 $7.09 Million
Q3 2017 Nov 14, 2017	BUY	$40.15 - $52.9 $3.46 Million - $4.55 Million	86,100	86,100 $4.46 Million

Others Institutions Holding QLYS

# of Institutions

482

Shares Held

36.5M

Call Options Held

134K

Put Options Held

21.4K

View Full List

About QUALYS, INC.

Ticker QLYS
Exchange NASDAQ
Sector Technology
Industry Software—Infrastructure
Shares Outstandng 38,363,600
Market Cap $5.51B
Description
Qualys, Inc. provides cloud-based information technology (IT), security, and compliance solutions in the United States and internationally. The company offers Qualys Cloud Apps, which includes Vulnerability Management; Vulnerability Management, Detection and Response; Threat Protection; Continuous Monitoring; Patch Management; Multi-Vector Endpo...

More about QLYS

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