QLYS
Qualys (QLYS)
NASDAQ
$181.91-$0.07 (-0.04%)
Price as of Aug 21, 2026 7:30 PM EDT
  • $6.3B
    Market Cap
  • 35.26%
    1-Year Change
  • Software - Infrastructure
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
BLACKROCK FUNDING, INC. /DE
16.64%
5.9M
+114,754 (+1.96%)
Dec 31, 2024
BLACKROCK, INC.
16.36%
5.8M
+402,125 (+6.98%)
Jun 30, 2026
BLACKROCK INC.
15.09%
5.3M
+180,499 (+3.40%)
Jun 30, 2024
VANGUARD GROUP INC
12.40%
4.4M
-36,391 (-0.83%)
Dec 31, 2025
VANGUARD PORTFOLIO MANAGEMENT LLC
7.66%
2.7M
+158,815 (+5.89%)
Jun 30, 2026
N/A
7.66%
2.7M
+158,815 (+5.89%)
Jun 30, 2026
BLACKROCK FUND ADVISORS
6.19%
2.2M
+240,463 (+11.03%)
Dec 31, 2016

Current Ownership Distribution

  • Institutions690.5M (76.50%)
  • Mutual Funds199.0M (22.05%)
  • Insiders13.1M (1.45%)
  • Other0 (0.00%)

Insider Transactions

  • 1.45% (13.1M)
    Current InsiderOwnership (%, shares)
  • 0
    Number of InsiderBuying (last 12 months)
  • $0.00
    Amount of InsiderBuying (last 12 months)
  • 6
    Number of InsiderSelling (last 12 months)
  • $1.7B
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
Pfeiffer Wendy
Sell
Aug 20, 2026
$92,500.00
500
$185.00
11,710
POSEY BRUCE K
CHIEF LEGAL OFFICER
Sell
Aug 20, 2026
$17,652.79
97
$181.99
60,323
POSEY BRUCE K
CHIEF LEGAL OFFICER
Sell
Aug 20, 2026
$72,147.61
393
$183.58
59,930
POSEY BRUCE K
CHIEF LEGAL OFFICER
Sell
Aug 20, 2026
$17,687.90
96
$184.25
59,834
POSEY BRUCE K
CHIEF LEGAL OFFICER
Sell
Aug 20, 2026
$52,055.86
280
$185.91
59,554
Kim Joo Mi
CHIEF FINANCIAL OFFICER
Sell
Aug 03, 2026
$14,722.00
100
$147.22
77,270
Kim Joo Mi
CHIEF FINANCIAL OFFICER
Sell
Aug 03, 2026
$14,854.00
100
$148.54
77,170
Kim Joo Mi
CHIEF FINANCIAL OFFICER
Sell
Aug 03, 2026
$30,294.00
200
$151.47
76,970
Kim Joo Mi
CHIEF FINANCIAL OFFICER
Sell
Aug 03, 2026
$45,834.00
300
$152.78
76,670
Kim Joo Mi
CHIEF FINANCIAL OFFICER
Sell
Aug 03, 2026
$127,778.78
827
$154.51
75,843
Kim Joo Mi
CHIEF FINANCIAL OFFICER
Sell
Aug 03, 2026
$15,512.00
100
$155.12
75,743
Kim Joo Mi
CHIEF FINANCIAL OFFICER
In Kind
Aug 01, 2026
$556,563.75
3,845
$144.75
77,370
POSEY BRUCE K
CHIEF LEGAL OFFICER
In Kind
Aug 01, 2026
$328,437.75
2,269
$144.75
60,420
POSEY BRUCE K
CHIEF LEGAL OFFICER
Sell
Jul 20, 2026
$38,080.70
243
$156.71
63,328
Pfeiffer Wendy
Sell
Jul 20, 2026
$79,095.00
500
$158.19
12,210
POSEY BRUCE K
CHIEF LEGAL OFFICER
Sell
Jul 20, 2026
$52,791.37
334
$158.06
62,994
POSEY BRUCE K
CHIEF LEGAL OFFICER
Sell
Jul 20, 2026
$41,748.63
262
$159.35
62,732
POSEY BRUCE K
CHIEF LEGAL OFFICER
Sell
Jul 20, 2026
$6,887.74
43
$160.18
62,689
Thakar Sumedh S
CEO & PRESIDENT
Sell
Jul 14, 2026
$14,930.00
100
$149.30
196,586
Thakar Sumedh S
CEO & PRESIDENT
Sell
Jul 14, 2026
$15,153.00
100
$151.53
196,486
Thakar Sumedh S
CEO & PRESIDENT
Sell
Jul 14, 2026
$15,530.00
100
$155.30
196,386
Thakar Sumedh S
CEO & PRESIDENT
Sell
Jul 14, 2026
$31,549.00
200
$157.75
196,186
Thakar Sumedh S
CEO & PRESIDENT
Sell
Jul 14, 2026
$117,394.80
730
$160.81
195,456
Thakar Sumedh S
CEO & PRESIDENT
Sell
Jul 14, 2026
$253,860.99
1,570
$161.69
193,886
Thakar Sumedh S
CEO & PRESIDENT
Sell
Jul 14, 2026
$32,480.00
200
$162.40
193,686
Thakar Sumedh S
CEO & PRESIDENT
Sell
Jul 14, 2026
$32,713.00
200
$163.56
193,486
Thakar Sumedh S
CEO & PRESIDENT
Sell
Jun 30, 2026
$1.3M
10,000
$130.00
216,686
Thakar Sumedh S
CEO & PRESIDENT
Sell
Jun 30, 2026
$1.4M
10,000
$135.00
206,686
Thakar Sumedh S
CEO & PRESIDENT
Sell
Jun 30, 2026
$1.4M
10,000
$140.00
196,686
Thakar Sumedh S
CEO & PRESIDENT
Sell
Jun 29, 2026
$339,128.10
2,700
$125.60
233,986