Quick Takeaways
- QLYS - QUALYS, INC. has 16 insiders with reported activity on this page.
- Net insider value flow over the last year: -$22,674,771.
- Recent transaction rows are available for direct filing-level review.
Insider Transactions Reported by 16 Insiders of QUALYS, INC.
- Symbol
- QLYS on Nasdaq
- Location
- Foster City, CA
What Changed
- Buy value: ; sell value: $22,674,770.
- Net share flow: -163,771.
Why This Matters
- This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
- Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.
Source Evidence
Filed on Form 4
See Original Filing
Issuer insider activity is sourced from SEC Forms 3, 4, and 5.
Insider trading overview
Last 12 monthsNet insider flow leans to selling over the last 12 months. Net value: -$22,674,771.
Buys
$0
Shares: 0
Insiders: 0
Sells
$22,674,771
Shares: 163,771
Insiders: 8
Net
-$22,674,771
Shares: -163,771
Insiders: -8
| Window (months) | Buy shares | Sell shares | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| 0-3 | 0 | 10,859 | $0 | $1,402,867 | -$1,402,867 |
| 3-6 | 0 | 59,057 | $0 | $8,481,325 | -$8,481,325 |
| 6-9 | 0 | 40,401 | $0 | $5,300,579 | -$5,300,579 |
| 9-12 | 0 | 53,454 | $0 | $7,489,999 | -$7,489,999 |
QUALYS, INC. executives and other stock owners filed with the SEC include:
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Philippe Courtot Family Trust | 10%+ Owner | $768,508,413 | Mixed | 04 Nov 2021 | ||
| Sumedh S. Thakar | CEO & PRESIDENT, Director | $33,267,122 | -$12,934,742 | -28% | Mixed | 03 Feb 2026 |
| Joo Mi Kim | Chief Financial Officer | $11,481,890 | -$6,160,159 | -35% | Filing P/S | 04 Feb 2026 |
| Allan Peters | Chief Revenue Officer | $8,952,634 | Mixed | 01 Mar 2023 | ||
| Bruce K. Posey | Chief Legal Officer | $7,102,134 | -$1,393,972 | -16% | Filing P/S | 13 Mar 2026 |
| Sandra E. Bergeron | Director | $5,569,499 | Mixed | 08 Jun 2022 | ||
| Peter Pace | Director | $3,416,667 | Mixed | 07 Jun 2023 | ||
| Jeffrey P. Hank | Director | $2,094,124 | -$607,086 | -22% | Mixed | 16 Jun 2025 |
| Saikat Paul | Chief Accounting Officer | $2,061,018 | Mixed | 15 Feb 2022 | ||
| Wendy Pfeiffer | Director | $1,437,557 | -$81,590 | -5.4% | Filing P/S | 15 Aug 2025 |
| William Berutti | Director | $1,309,543 | Mixed | 07 Jun 2023 | ||
| Kristi Marie Rogers | Director | $1,157,921 | -$228,998 | -17% | Filing P/S | 22 Aug 2025 |
| Thomas Berquist | Director | $681,971 | -$159,180 | -19% | Filing P/S | 02 Sep 2025 |
| John A. Zangardi | Director | $550,029 | -$1,109,043 | -67% | Mixed | 27 Aug 2025 |
| Bradford L. Brooks | Director | $423,191 | Mixed | 30 Oct 2025 | ||
| Arjet Skenduli | Chief Accounting Officer | Mixed | 23 Feb 2022 |
Top shareholders of QUALYS, INC. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| Philippe Courtot Family Trust |
3/4/5
|
10%+ Owner |
—
class O/S missing
|
3,850,339
|
$768,508,413 | — | 04 Nov 2021 | |
| BlackRock, Inc. |
13F
13D/G
|
Company |
14%
from 13D/G
|
5,373,096
|
$714,084,504 | — | 31 Dec 2025 | |
| VANGUARD GROUP INC |
13F
|
Company |
12%
|
4,365,407
|
$580,162,589 | — | 31 Dec 2025 | |
| FIRST TRUST ADVISORS LP |
13F
|
Company |
3.8%
|
1,372,587
|
$182,416,812 | — | 31 Dec 2025 | |
| STATE STREET CORP |
13F
|
Company |
3.7%
|
1,348,093
|
$179,161,560 | — | 31 Dec 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
3.5%
|
1,256,002
|
$168,379,771 | — | 31 Dec 2025 | |
| Legal & General Group Plc |
13F
|
Company |
3.2%
|
1,156,412
|
$153,687,154 | — | 31 Dec 2025 | |
| Boston Trust Walden Corp |
13F
|
Company |
3%
|
1,103,888
|
$146,706,715 | — | 31 Dec 2025 | |
| Neuberger Berman Group LLC |
13F
|
Company |
2.2%
|
815,077
|
$108,323,734 | — | 31 Dec 2025 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
2%
|
717,381
|
$95,343,922 | — | 31 Dec 2025 | |
| MORGAN STANLEY |
13F
|
Company |
1.9%
|
691,800
|
$91,940,408 | — | 31 Dec 2025 | |
| Fundsmith LLP |
13F
|
Company |
1.8%
|
647,806
|
$86,093,417 | — | 31 Dec 2025 | |
| AQR CAPITAL MANAGEMENT LLC |
13F
|
Company |
1.7%
|
633,471
|
$84,188,260 | — | 31 Dec 2025 | |
| FULLER & THALER ASSET MANAGEMENT, INC. |
13F
|
Company |
1.6%
|
591,358
|
$78,591,438 | — | 31 Dec 2025 | |
| RWA WEALTH PARTNERS, LLC |
13F
|
Company |
1.6%
|
588,748
|
$78,244,609 | — | 31 Dec 2025 | |
| Penserra Capital Management LLC |
13F
|
Company |
1.5%
|
547,075
|
$72,706,000 | — | 31 Dec 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
1.4%
|
512,649
|
$68,131,052 | — | 31 Dec 2025 | |
| JPMORGAN CHASE & CO |
13F
|
Company |
1.3%
|
488,695
|
$64,947,565 | — | 31 Dec 2025 | |
| RENAISSANCE TECHNOLOGIES LLC |
13F
|
Company |
1.3%
|
480,300
|
$63,831,870 | — | 31 Dec 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
1.3%
|
470,311
|
$62,504,339 | — | 31 Dec 2025 | |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC |
13F
|
Company |
1.2%
|
430,885
|
$57,264,617 | — | 31 Dec 2025 | |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. |
13F
|
Company |
1.2%
|
422,815
|
$56,197,402 | — | 31 Dec 2025 | |
| AMERICAN CAPITAL MANAGEMENT INC |
13F
|
Company |
1.1%
|
404,119
|
$53,707,415 | — | 31 Dec 2025 | |
| LONDON CO OF VIRGINIA |
13F
|
Company |
1.1%
|
389,254
|
$51,733,292 | — | 31 Dec 2025 | |
| CDAM (UK) Ltd |
13F
|
Company |
1.1%
|
386,650
|
$51,385,785 | — | 31 Dec 2025 | |
| Invesco Ltd. |
13F
|
Company |
1%
|
376,406
|
$50,024,357 | — | 31 Dec 2025 | |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP |
13F
|
Company |
1%
|
366,844
|
$48,753,568 | — | 31 Dec 2025 | |
| Clark Capital Management Group, Inc. |
13F
|
Company |
1%
|
363,593
|
$48,321,509 | — | 31 Dec 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.94%
|
341,297
|
$45,358,372 | — | 31 Dec 2025 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.91%
|
330,154
|
$43,877,434 | — | 31 Dec 2025 | |
| VOYA INVESTMENT MANAGEMENT LLC |
13F
|
Company |
0.8%
|
289,872
|
$38,523,989 | — | 31 Dec 2025 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
0.75%
|
271,878
|
$36,132,586 | — | 31 Dec 2025 | |
| Sumedh S. Thakar |
3/4/5
|
CEO & PRESIDENT, Director |
0.67%
|
242,138
mixed-class rows
|
$33,267,122 | -$12,934,742 | 03 Feb 2026 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
0.67%
|
245,322
|
$32,603,294 | — | 31 Dec 2025 | |
| BNP PARIBAS FINANCIAL MARKETS |
13F
|
Company |
0.64%
|
234,108
|
$31,112,953 | — | 31 Dec 2025 | |
| NORGES BANK |
13F
|
Company |
0.6%
|
219,395
|
$29,157,596 | — | 31 Dec 2025 | |
| TUDOR INVESTMENT CORP ET AL |
13F
|
Company |
0.6%
|
217,475
|
$28,902,428 | — | 31 Dec 2025 | |
| FORT WASHINGTON INVESTMENT ADVISORS INC /OH/ |
13F
|
Company |
0.57%
|
208,832
|
$27,753,773 | — | 31 Dec 2025 | |
| TWO SIGMA INVESTMENTS, LP |
13F
|
Company |
0.57%
|
206,425
|
$27,433,883 | — | 31 Dec 2025 | |
| Retirement Systems of Alabama |
13F
|
Company |
0.5%
|
180,700
|
$24,015,030 | — | 31 Dec 2025 | |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13F
|
Company |
0.49%
|
179,556
|
$23,864,000 | — | 31 Dec 2025 | |
| AMERIPRISE FINANCIAL INC |
13F
|
Company |
0.49%
|
178,424
|
$23,711,206 | — | 31 Dec 2025 | |
| FEDERATED HERMES, INC. |
13F
|
Company |
0.48%
|
174,052
|
$23,131,511 | — | 31 Dec 2025 | |
| CANADA LIFE ASSURANCE Co |
13F
|
Company |
0.42%
|
154,351
|
$20,494,000 | — | 31 Dec 2025 | |
| ENVESTNET ASSET MANAGEMENT INC |
13F
|
Company |
0.41%
|
150,497
|
$20,001,051 | — | 31 Dec 2025 | |
| NORDEA INVESTMENT MANAGEMENT AB |
13F
|
Company |
0.35%
|
125,636
|
$16,768,637 | — | 31 Dec 2025 | |
| JANUS HENDERSON GROUP PLC |
13F
|
Company |
0.34%
|
122,715
|
$16,307,626 | — | 31 Dec 2025 | |
| DEUTSCHE BANK AG\ |
13F
|
Company |
0.34%
|
122,462
|
$16,275,199 | — | 31 Dec 2025 | |
| Fisher Asset Management, LLC |
13F
|
Company |
0.33%
|
118,743
|
$15,781,064 | — | 31 Dec 2025 | |
| PRINCIPAL FINANCIAL GROUP INC |
13F
|
Company |
0.32%
|
117,819
|
$15,658,145 | — | 31 Dec 2025 |
Recent Insider Transactions by Companies or Individuals for QUALYS, INC.
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Bruce K. Posey | QLYS | Common Stock | Sale | -0.09% | $6,506 | $100.09 | -65 | 70,955 | 13 Mar 2026 | Direct |
| Bruce K. Posey | QLYS | Common Stock | Sale | -0.14% | $10,018 | $100.18 | -100 | 71,020 | 05 Mar 2026 | Direct |
| Bruce K. Posey | QLYS | Common Stock | Sale | -0.67% | $49,950 | $103.85 | -481 | 71,120 | 20 Feb 2026 | Direct |
| Joo Mi Kim | QLYS | Common Stock | Sale | -7.14% | $873,369 | $128.46 | -6,799 | 88,489 | 04 Feb 2026 | Direct |
| Joo Mi Kim | QLYS | Common Stock | Tax liability | -7.17% | -7,038 | 91,086 | 03 Feb 2026 | Direct | ||
| Joo Mi Kim | QLYS | Common Stock | Award | 16.5% | 13,837 | 97,678 | 03 Feb 2026 | Direct | ||
| Sumedh S. Thakar | QLYS | Common Stock | Tax liability | -10.2% | -28,493 | 252,171 | 03 Feb 2026 | Direct | ||
| Sumedh S. Thakar | QLYS | Common Stock | Award | 25.3% | 55,996 | 277,171 | 03 Feb 2026 | Direct | ||
| Bruce K. Posey | QLYS | Common Stock | Tax liability | -5.16% | -3,645 | 66,968 | 03 Feb 2026 | Direct | ||
| Bruce K. Posey | QLYS | Common Stock | Award | 12.6% | 8,113 | 72,490 | 03 Feb 2026 | Direct | ||
| Joo Mi Kim | QLYS | Common Stock | Sale | -3.71% | $463,024 | $135.63 | -3,414 | 88,489 | 02 Feb 2026 | Direct |
| Joo Mi Kim | QLYS | Common Stock | Tax liability | -2.92% | -2,769 | 91,903 | 01 Feb 2026 | Direct | ||
| Sumedh S. Thakar | QLYS | Common Stock | Tax liability | -2.28% | -5,662 | 242,138 | 01 Feb 2026 | Direct | ||
| Bruce K. Posey | QLYS | Common Stock | Tax liability | -2.42% | -1,659 | 66,939 | 01 Feb 2026 | Direct | ||
| Bruce K. Posey | QLYS | Common Stock | Sale | -1.58% | $145,708 | $132.34 | -1,101 | 68,598 | 20 Jan 2026 | Direct |
| Sumedh S. Thakar | QLYS | Common Stock | Sale | -1.98% | $668,817 | $133.76 | -5,000 | 247,800 | 14 Jan 2026 | Direct |
| Joo Mi Kim | QLYS | Common Stock | Sale | -4.78% | $621,540 | $130.77 | -4,753 | 94,672 | 02 Jan 2026 | Direct |
| Bruce K. Posey | QLYS | Common Stock | Sale | -1.52% | $153,427 | $142.46 | -1,077 | 69,699 | 22 Dec 2025 | Direct |
| Sumedh S. Thakar | QLYS | Common Stock | Sale | -3.25% | $1,250,551 | $147.12 | -8,500 | 252,800 | 15 Dec 2025 | Direct |
| Sumedh S. Thakar | QLYS | Common Stock | Options Exercise | 2.55% | 6,500 | 261,300 | 15 Dec 2025 | Direct | ||
| Sumedh S. Thakar | QLYS | Stock Option (right to buy) | Options Exercise | -100% | -6,500 | 0 | 15 Dec 2025 | Direct | ||
| Joo Mi Kim | QLYS | Common Stock | Sale | -8% | $1,295,705 | $149.81 | -8,649 | 99,425 | 09 Dec 2025 | Direct |
| Bruce K. Posey | QLYS | Common Stock | Sale | -1.39% | $150,000 | $150.00 | -1,000 | 70,776 | 04 Dec 2025 | Direct |
| Bruce K. Posey | QLYS | Common Stock | Sale | -4.11% | $449,219 | $145.99 | -3,077 | 71,776 | 03 Dec 2025 | Direct |
| Joo Mi Kim | QLYS | Common Stock | Sale | -6.49% | $1,100,307 | $146.59 | -7,506 | 108,074 | 02 Dec 2025 | Direct |
| Joo Mi Kim | QLYS | Common Stock | Sale | -6.24% | $1,092,192 | $141.95 | -7,694 | 115,580 | 21 Nov 2025 | Direct |
| Sumedh S. Thakar | QLYS | Common Stock | Sale | -3.23% | $1,212,766 | $142.68 | -8,500 | 254,800 | 14 Nov 2025 | Direct |
| Sumedh S. Thakar | QLYS | Common Stock | Options Exercise | 2.53% | 6,500 | 263,300 | 14 Nov 2025 | Direct | ||
| Sumedh S. Thakar | QLYS | Stock Option (right to buy) | Options Exercise | -50% | -6,500 | 6,500 | 14 Nov 2025 | Direct | ||
| Sumedh S. Thakar | QLYS | Common Stock | Sale | -0.85% | $341,094 | $155.04 | -2,200 | 256,800 | 12 Nov 2025 | Direct |
| Joo Mi Kim | QLYS | Common Stock | Tax liability | -2.99% | -3,802 | 123,274 | 01 Nov 2025 | Direct | ||
| Sumedh S. Thakar | QLYS | Common Stock | Tax liability | -2.28% | -6,043 | 259,000 | 01 Nov 2025 | Direct | ||
| Bruce K. Posey | QLYS | Common Stock | Tax liability | -2.95% | -2,279 | 74,853 | 01 Nov 2025 | Direct | ||
| Bradford L. Brooks | QLYS | Common Stock | Award | 3,198 | 3,198 | 30 Oct 2025 | Direct | |||
| Joo Mi Kim | QLYS | Common Stock | Award | 36.8% | 34,212 | 127,076 | 30 Oct 2025 | Direct | ||
| Bruce K. Posey | QLYS | Common Stock | Award | 35.9% | 20,357 | 77,132 | 30 Oct 2025 | Direct | ||
| Sumedh S. Thakar | QLYS | Common Stock | Award | 30% | 61,092 | 265,043 | 30 Oct 2025 | Direct | ||
| Bruce K. Posey | QLYS | Common Stock | Sale | -0.94% | $68,646 | $127.12 | -540 | 56,775 | 20 Oct 2025 | Direct |
| Sumedh S. Thakar | QLYS | Common Stock | Sale | -4% | $1,078,007 | $126.82 | -8,500 | 203,951 | 14 Oct 2025 | Direct |
| Sumedh S. Thakar | QLYS | Common Stock | Options Exercise | 3.16% | 6,500 | 212,451 | 14 Oct 2025 | Direct | ||
| Sumedh S. Thakar | QLYS | Stock Option (right to buy) | Options Exercise | -33.3% | -6,500 | 13,000 | 14 Oct 2025 | Direct | ||
| Joo Mi Kim | QLYS | Common Stock | Sale | -0.84% | $101,656 | $129.17 | -787 | 92,864 | 06 Oct 2025 | Direct |
| Bruce K. Posey | QLYS | Common Stock | Sale | -0.91% | $71,497 | $136.18 | -525 | 57,315 | 22 Sep 2025 | Direct |
| Sumedh S. Thakar | QLYS | Common Stock | Sale | -3.96% | $1,126,184 | $132.49 | -8,500 | 205,951 | 15 Sep 2025 | Direct |
| Sumedh S. Thakar | QLYS | Common Stock | Options Exercise | 3.13% | 6,500 | 214,451 | 15 Sep 2025 | Direct | ||
| Sumedh S. Thakar | QLYS | Stock Option (right to buy) | Options Exercise | -25% | -6,500 | 19,500 | 15 Sep 2025 | Direct | ||
| Joo Mi Kim | QLYS | Common Stock | Sale | -0.89% | $113,769 | $134.80 | -844 | 93,651 | 05 Sep 2025 | Direct |
| Thomas Berquist | QLYS | Common Stock | Sale | -9.14% | $68,141 | $133.09 | -512 | 5,092 | 02 Sep 2025 | Direct |
| John A. Zangardi | QLYS | Common Stock | Sale | -43.2% | $418,720 | $134.94 | -3,103 | 4,071 | 27 Aug 2025 | Direct |
| John A. Zangardi | QLYS | Common Stock | Sale | -35% | $520,404 | $134.82 | -3,860 | 7,174 | 22 Aug 2025 | Direct |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.