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Qualys, Inc.

QLYS
Exchange
Nasdaq
Industry
Services-Prepackaged Software
SEC CIK
0001107843

In the last 90 days, Qualys, Inc. insiders filed 0 open-market purchases and 16 sales; 436 institutions reported holding it in 13F filings for Q2 2026, worth $5.06B in total; no superinvestor holds it.

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by Qualys, Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
0 filings
Open-market sells
16 filings
5 insiders, $9.62M in total
Insiders trading
5
Net value
−$9.62M
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for Qualys, Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for Qualys, Inc.
NameTitleLast reported holdingLast filingFilings, past year
Posey Bruce KCHIEF LEGAL OFFICER58,688Sep 22, 202619
Thakar Sumedh SCEO & PRESIDENT180,338Sep 15, 202619
Berquist ThomasDirector6,270Sep 3, 20263
Kim Joo MiCHIEF FINANCIAL OFFICER74,713Sep 3, 202617
Pfeiffer WendyDirector11,710Aug 21, 20265
Hank Jeffrey PDirector15,576Jun 15, 20262
Rogers Kristi MarieDirector11,224Jun 11, 20261
Brooks Bradford L.Director5,826Jun 11, 20262
Zangardi John A.Director6,699Jun 11, 20261
Pace PeterDirector17,118Jun 9, 20230
Berutti WilliamDirector6,561Jun 9, 20230
Peters AllanChief Revenue Officer44,854Mar 2, 20230
Bergeron Sandra E.Director27,904Jun 10, 20220
Paul SaikatChief Accounting Officer10,326Feb 17, 20220
Philippe Courtot Family Trust10% Owner3,850,339Nov 8, 20210

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Sep 22, 2026 (view filing)9:12 PM ETSep 211 dayPosey Bruce KCHIEF LEGAL OFFICERSSale−866$179.49−$155.4K−1.5%58.7K after5 lots10b5-1
Sep 15, 2026 (view filing)8:21 PM ETSep 141 dayThakar Sumedh SCEO & PRESIDENTSSale−3.20K$170.05−$544.2K−1.7%180.3K after10 lots10b5-1
Sep 3, 2026 (view filing)4:04 PM ETSep 21 dayBerquist ThomasDirectorSSale−511$175.27−$89.6K−7.5%6.27K after10b5-1
Sep 3, 2026 (view filing)4:03 PM ETSep 21 dayKim Joo MiCHIEF FINANCIAL OFFICERSSale−1.03K$169.62−$174.7K−1.4%74.7K after5 lots10b5-1
Aug 21, 2026 (view filing)4:09 PM ETAug 201 dayPosey Bruce KCHIEF LEGAL OFFICERSSale−866$184.23−$159.5K−1.4%59.6K after4 lots10b5-1
Aug 21, 2026 (view filing)4:05 PM ETAug 201 dayPfeiffer WendyDirectorSSale−500$185.00−$92.5K−4.1%11.7K after10b5-1
Aug 17, 2026 (view filing)4:04 PM ETAug 143 daysThakar Sumedh SCEO & PRESIDENTSSale−3.20K$188.97−$604.7K−1.7%183.5K after5 lots10b5-1
Aug 4, 2026 (view filing)5:25 PM ETAug 31 dayKim Joo MiCHIEF FINANCIAL OFFICERSSale−1.63K$153.04−$249.0K−2.1%75.7K after6 lots10b5-1
Jul 21, 2026 (view filing)7:38 PM ETJul 201 dayPosey Bruce KCHIEF LEGAL OFFICERSSale−882$158.17−$139.5K−1.4%62.7K after4 lots10b5-1
Jul 21, 2026 (view filing)7:37 PM ETJul 201 dayPfeiffer WendyDirectorSSale−500$158.19−$79.1K−3.9%12.2K after10b5-1
Jul 15, 2026 (view filing)7:58 PM ETJul 141 dayThakar Sumedh SCEO & PRESIDENTSSale−3.20K$160.50−$513.6K−1.6%193.5K after8 lots10b5-1
Jul 6, 2026 (view filing)7:16 PM ETJul 6Same dayPosey Bruce KCHIEF LEGAL OFFICERSSale−1.00K$155.00−$155.0K−1.5%63.6K after10b5-1
Jul 6, 2026 (view filing)7:15 PM ETJul 24 daysKim Joo MiCHIEF FINANCIAL OFFICERSSale−965$143.44−$138.4K−1.2%81.2K after10b5-1
Jul 1, 2026 (view filing)9:39 PM ETJun 301 dayThakar Sumedh SCEO & PRESIDENTSSale−30.0K$135.00−$4.05M−13.2%196.7K after3 lots10b5-1
Jun 30, 2026 (view filing)Jun 291 dayThakar Sumedh SCEO & PRESIDENTSSale−10.0K$126.75−$1.27M−4.2%226.7K after3 lots10b5-1
Jun 29, 2026 (view filing)Jun 263 daysThakar Sumedh SCEO & PRESIDENTSSale−10.0K$120.48−$1.20M−4.1%236.7K after2 lots10b5-1
Jun 23, 2026 (view filing)Jun 221 dayPfeiffer WendyDirectorSSale−500$110.55−$55.3K−3.8%12.7K after10b5-1
Jun 23, 2026 (view filing)Jun 221 dayPosey Bruce KCHIEF LEGAL OFFICERSSale−865$109.44−$94.7K−1.3%64.6K after5 lots10b5-1
Jun 16, 2026 (view filing)Jun 151 dayThakar Sumedh SCEO & PRESIDENTSSale−3.20K$114.80−$367.4K−1.3%246.7K after3 lots10b5-1
Jun 15, 2026 (view filing)Jun 123 daysBerquist ThomasDirectorSSale−939$110.75−$104.0K−12.2%6.78K after10b5-1
Jun 15, 2026 (view filing)Jun 11-124 daysHank Jeffrey PDirectorSSale−940$109.82−$103.2K−5.7%15.6K after2 lots
Jun 3, 2026 (view filing)Jun 21 dayKim Joo MiCHIEF FINANCIAL OFFICERSSale−1.03K$111.67−$115.1K−1.2%82.2K after4 lots10b5-1
Jun 2, 2026 (view filing)Jun 11 dayThakar Sumedh SCEO & PRESIDENTSSale−13.2K$114.73−$1.51M−5.0%249.9K after4 lots10b5-1
May 26, 2026 (view filing)May 224 daysPfeiffer WendyDirectorSSale−500$101.21−$50.6K−4.5%10.6K after10b5-1
May 21, 2026 (view filing)May 192 daysKim Joo MiCHIEF FINANCIAL OFFICERSSale−1.63K$100.17−$163.0K−1.9%83.2K after10b5-1
May 21, 2026 (view filing)May 19-202 daysPosey Bruce KCHIEF LEGAL OFFICERSSale−3.25K$100.25−$325.7K−4.7%65.4K after4 lots10b5-1
Mar 16, 2026 (view filing)Mar 133 daysPosey Bruce KCHIEF LEGAL OFFICERSSale−65$100.09−$6.51K−0.1%71.0K after10b5-1
Mar 6, 2026 (view filing)Mar 51 dayPosey Bruce KCHIEF LEGAL OFFICERSSale−100$100.18−$10.0K−0.1%71.0K after10b5-1
Feb 24, 2026 (view filing)Feb 204 daysPosey Bruce KCHIEF LEGAL OFFICERSSale−481$103.84−$49.9K−0.7%71.1K after3 lots10b5-1
Feb 6, 2026 (view filing)Feb 42 daysKim Joo MiCHIEF FINANCIAL OFFICERSSale−6.80K$128.46−$873.4K−7.1%88.5K after5 lots10b5-1
Feb 3, 2026 (view filing)Feb 21 dayKim Joo MiCHIEF FINANCIAL OFFICERSSale−3.41K$135.63−$463.0K−3.7%88.5K after3 lots10b5-1
Jan 22, 2026 (view filing)Jan 202 daysPosey Bruce KCHIEF LEGAL OFFICERSSale−1.10K$132.34−$145.7K−1.6%68.6K after4 lots10b5-1
Jan 16, 2026 (view filing)Jan 142 daysThakar Sumedh SCEO & PRESIDENTSSale−5.00K$133.77−$668.8K−2.0%247.8K after4 lots10b5-1
Jan 5, 2026 (view filing)Jan 23 daysKim Joo MiCHIEF FINANCIAL OFFICERSSale−4.75K$130.77−$621.6K−4.8%94.7K after3 lots10b5-1
Dec 23, 2025 (view filing)Dec 221 dayPosey Bruce KCHIEF LEGAL OFFICERSSale−1.08K$142.46−$153.4K−1.5%69.7K after3 lots10b5-1
Dec 16, 2025 (view filing)Dec 151 dayThakar Sumedh SCEO & PRESIDENTSSale−8.50K$147.12−$1.25M−3.3%252.8K after7 lots10b5-1
Dec 10, 2025 (view filing)Dec 91 dayKim Joo MiCHIEF FINANCIAL OFFICERSSale−8.65K$149.81−$1.30M−8.0%99.4K after3 lots10b5-1
Dec 5, 2025 (view filing)Dec 3-42 daysPosey Bruce KCHIEF LEGAL OFFICERSSale−4.08K$146.98−$599.2K−5.4%70.8K after6 lots10b5-1
Dec 3, 2025 (view filing)Dec 21 dayKim Joo MiCHIEF FINANCIAL OFFICERSSale−7.51K$146.59−$1.10M−6.5%108.1K after4 lots10b5-1
Nov 24, 2025 (view filing)Nov 213 daysKim Joo MiCHIEF FINANCIAL OFFICERSSale−7.69K$141.95−$1.09M−6.2%115.6K after7 lots10b5-1
Nov 17, 2025 (view filing)Nov 143 daysThakar Sumedh SCEO & PRESIDENTSSale−8.50K$142.68−$1.21M−3.2%254.8K after4 lots10b5-1
Nov 13, 2025 (view filing)Nov 121 dayThakar Sumedh SCEO & PRESIDENTSSale−2.20K$155.04−$341.1K−0.8%256.8K after10b5-1
Oct 21, 2025 (view filing)Oct 201 dayPosey Bruce KCHIEF LEGAL OFFICERSSale−540$127.12−$68.6K−0.9%56.8K after2 lots10b5-1
Oct 15, 2025 (view filing)Oct 141 dayThakar Sumedh SCEO & PRESIDENTSSale−8.50K$126.83−$1.08M−4.0%204.0K after2 lots10b5-1
Oct 7, 2025 (view filing)Oct 61 dayKim Joo MiCHIEF FINANCIAL OFFICERSSale−787$129.17−$101.7K−0.8%92.9K after2 lots10b5-1
Sep 23, 2025 (view filing)Sep 221 dayPosey Bruce KCHIEF LEGAL OFFICERSSale−525$136.18−$71.5K−0.9%57.3K after2 lots10b5-1
Sep 16, 2025 (view filing)Sep 151 dayThakar Sumedh SCEO & PRESIDENTSSale−8.50K$132.49−$1.13M−4.0%206.0K after2 lots10b5-1
Sep 8, 2025 (view filing)Sep 53 daysKim Joo MiCHIEF FINANCIAL OFFICERSSale−844$134.80−$113.8K−0.9%93.7K after3 lots10b5-1
Sep 3, 2025 (view filing)Sep 21 dayBerquist ThomasDirectorSSale−512$133.09−$68.1K−9.1%5.09K after3 lots10b5-1
Aug 29, 2025 (view filing)Aug 272 daysZangardi John A.DirectorSSale−3.10K$134.94−$418.7K−43.3%4.07K after