Understand Stock

$QLYS

$110.81 -$3.21 (2.82%)

Deep Research with AI Research

Overview

$QLYS Overview Financials SEC Filings Executives News

Specialized Tools

Valuations P Insider Transactions P Congressional Trades P

Insider Transactions

Insider Transaction Summary

PHILIPPE F COURTOT

5,156,645 shares

Net: 0 B/S: -

Courtot Family Trust Philippe

3,907,660 shares

Net: 0 B/S: -

Sumedh S Thakar

263,086 shares

Net: +65,642 B/S: 4.8

Melissa B Fisher

171,633 shares

Net: 0 B/S: -

DONALD R DIXON

89,852 shares

Net: 0 B/S: -

Joo Mi Kim

84,838 shares

Net: +13,175 B/S: 4.19

BRUCE K POSEY

68,685 shares

Net: +5,645 B/S: 3.26

Allan Peters

44,854 shares

Net: 0 B/S: -

Amer Deeba

31,867 shares

Net: 0 B/S: -

SANDRA E. BERGERON

27,904 shares

Net: 0 B/S: -

PETER PACE

17,118 shares

Net: 0 B/S: -

Jeffrey P Hank

13,888 shares

Net: +1,222 B/S: 2.86

Wendy Pfeiffer

11,082 shares

Net: +1,279 B/S: 3.13

Saikat Paul

10,326 shares

Net: 0 B/S: -

Kristi Marie Rogers

8,596 shares

Net: +179 B/S: 1.11

Todd P Headley

7,302 shares

Net: 0 B/S: -

Patricia Hatter

7,239 shares

Net: 0 B/S: -

William Berutti

6,561 shares

Net: 0 B/S: -

Thomas Berquist

5,454 shares

Net: +1,073 B/S: 2.33

Jason Ream

4,664 shares

Net: 0 B/S: -

John A. Zangardi

4,071 shares

Net: -6,371 B/S: 0.23

Bradford L. Brooks

3,198 shares

Net: +3,198 B/S: ∞

Insider Name	Current Shares	Net Change (1yr)	Buy/Sell Ratio
PHILIPPE F COURTOT	5,156,645	0	-
Courtot Family Trust Philippe	3,907,660	0	-
Sumedh S Thakar	263,086	+65,642	4.8
Melissa B Fisher	171,633	0	-
DONALD R DIXON	89,852	0	-
Joo Mi Kim	84,838	+13,175	4.19
BRUCE K POSEY	68,685	+5,645	3.26
Allan Peters	44,854	0	-
Amer Deeba	31,867	0	-
SANDRA E. BERGERON	27,904	0	-
PETER PACE	17,118	0	-
Jeffrey P Hank	13,888	+1,222	2.86
Wendy Pfeiffer	11,082	+1,279	3.13
Saikat Paul	10,326	0	-
Kristi Marie Rogers	8,596	+179	1.11
Todd P Headley	7,302	0	-
Patricia Hatter	7,239	0	-
William Berutti	6,561	0	-
Thomas Berquist	5,454	+1,073	2.33
Jason Ream	4,664	0	-
John A. Zangardi	4,071	-6,371	0.23
Bradford L. Brooks	3,198	+3,198	∞

Individual Transactions

May 01, 2026

Joo Mi Kim

Tax Payment

Change: -3,845

Price: $88.53

Shares: 84,838

Value: -$340,397

BRUCE K POSEY

Tax Payment

Change: -2,270

Price: $88.53

Shares: 68,685

Value: -$200,963

Sumedh S Thakar

Tax Payment

Change: -6,748

Price: $88.53

Shares: 263,086

Value: -$597,400

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Joo Mi Kim	May 04	Tax Payment (F) Tax Payment	84,838	-3,845	$88.53	-$340,397
BRUCE K POSEY	May 04	Tax Payment (F) Tax Payment	68,685	-2,270	$88.53	-$200,963
Sumedh S Thakar	May 04	Tax Payment (F) Tax Payment	263,086	-6,748	$88.53	-$597,400

March 13, 2026

BRUCE K POSEY

Open Market Sale

Change: -65

Price: $100.09

Shares: 70,955

Value: -$6,506

Insider	Filing Date	Transaction	Shares	Change	Price	Value
BRUCE K POSEY	Mar 16	Open Market Sale (S) Market Sale	70,955	-65	$100.09	-$6,506

March 05, 2026

BRUCE K POSEY

Open Market Sale

Change: -100

Price: $100.18

Shares: 71,020

Value: -$10,018

Insider	Filing Date	Transaction	Shares	Change	Price	Value
BRUCE K POSEY	Mar 06	Open Market Sale (S) Market Sale	71,020	-100	$100.18	-$10,018

February 20, 2026

BRUCE K POSEY

Open Market Sale

Change: -210

Price: $103.13

Shares: 71,391

Value: -$21,658

Insider	Filing Date	Transaction	Shares	Change	Price	Value
BRUCE K POSEY	Feb 24	Open Market Sale (S) Market Sale	71,391	-210	$103.13	-$21,658

February 04, 2026

Joo Mi Kim

Open Market Sale

Change: -500

Price: $125.25

Shares: 94,788

Value: -$62,626

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Joo Mi Kim	Feb 06	Open Market Sale (S) Market Sale	94,788	-500	$125.25	-$62,626

February 03, 2026

Joo Mi Kim

Tax Payment

Change: -2,683

Price: $127.52

Shares: 91,086

Value: -$342,136

Joo Mi Kim

Grant/Award Acquisition

Change: +5,280

Price: $0.00

Shares: 93,769

Value: +$0

BRUCE K POSEY

Grant/Award Acquisition

Change: +60

Price: $0.00

Shares: 66,999

Value: +$0

BRUCE K POSEY

Tax Payment

Change: -31

Price: $127.52

Shares: 66,968

Value: -$3,953

Sumedh S Thakar

Tax Payment

Change: -10,394

Price: $127.52

Shares: 252,171

Value: -$1,325,442

Sumedh S Thakar

Grant/Award Acquisition

Change: +20,427

Price: $0.00

Shares: 262,565

Value: +$0

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Joo Mi Kim	Feb 05	Tax Payment (F) Tax Payment	91,086	-2,683	$127.52	-$342,136
Joo Mi Kim	Feb 05	Grant/Award Acquisition (A) Compensation/Award	93,769	+5,280	$0.00	+$0
BRUCE K POSEY	Feb 05	Grant/Award Acquisition (A) Compensation/Award	66,999	+60	$0.00	+$0
BRUCE K POSEY	Feb 05	Tax Payment (F) Tax Payment	66,968	-31	$127.52	-$3,953
Sumedh S Thakar	Feb 05	Tax Payment (F) Tax Payment	252,171	-10,394	$127.52	-$1,325,442
Sumedh S Thakar	Feb 05	Grant/Award Acquisition (A) Compensation/Award	262,565	+20,427	$0.00	+$0

February 02, 2026

Joo Mi Kim

Open Market Sale

Change: -2,108

Price: $135.05

Shares: 89,795

Value: -$284,678

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Joo Mi Kim	Feb 03	Open Market Sale (S) Market Sale	89,795	-2,108	$135.05	-$284,678

February 01, 2026

Joo Mi Kim

Tax Payment

Change: -2,769

Price: $131.90

Shares: 91,903

Value: -$365,231

Sumedh S Thakar

Tax Payment

Change: -5,662

Price: $131.90

Shares: 242,138

Value: -$746,817

BRUCE K POSEY

Tax Payment

Change: -1,659

Price: $131.90

Shares: 66,939

Value: -$218,822

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Joo Mi Kim	Feb 03	Tax Payment (F) Tax Payment	91,903	-2,769	$131.90	-$365,231
Sumedh S Thakar	Feb 03	Tax Payment (F) Tax Payment	242,138	-5,662	$131.90	-$746,817
BRUCE K POSEY	Feb 03	Tax Payment (F) Tax Payment	66,939	-1,659	$131.90	-$218,822

January 20, 2026

BRUCE K POSEY

Open Market Sale

Change: -669

Price: $131.77

Shares: 69,030

Value: -$88,151

Insider	Filing Date	Transaction	Shares	Change	Price	Value
BRUCE K POSEY	Jan 22	Open Market Sale (S) Market Sale	69,030	-669	$131.77	-$88,151

January 14, 2026

Sumedh S Thakar

Open Market Sale

Change: -400

Price: $131.98

Shares: 252,400

Value: -$52,793

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Sumedh S Thakar	Jan 16	Open Market Sale (S) Market Sale	252,400	-400	$131.98	-$52,793

January 02, 2026

Joo Mi Kim

Open Market Sale

Change: -2,256

Price: $130.38

Shares: 97,169

Value: -$294,137

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Joo Mi Kim	Jan 05	Open Market Sale (S) Market Sale	97,169	-2,256	$130.38	-$294,137