QUALYS INC QLYS
COM · Common Stock · CUSIP 74758T303 · ISIN US74758T3032
American web security company
- SectorTechnology
- IndustryServices-Prepackaged Software
- HeadquartersFoster City, CA
- Founded1999
- Websitequalys.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($29.6m this quarter). Holder counts are more reliable. Shares outstanding: 36.1m as of 2025-07-24, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $142.89. Options: 5 managers hold calls ($30.2m notional), 4 hold puts ($1.5m).
Trends to Q2 2025
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 394 |
| Q4 2022 | 392 |
| Q1 2023 | 390 |
| Q2 2023 | 386 |
| Q3 2023 | 409 |
| Q4 2023 | 464 |
| Q1 2024 | 453 |
| Q2 2024 | 467 |
| Q3 2024 | 436 |
| Q4 2024 | 451 |
| Q1 2025 | 430 |
| Q2 2025 | 438 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2023 | 214 | 174 |
| Q4 2023 | 223 | 204 |
| Q1 2024 | 220 | 245 |
| Q2 2024 | 241 | 205 |
| Q3 2024 | 186 | 248 |
| Q4 2024 | 219 | 201 |
| Q1 2025 | 199 | 229 |
| Q2 2025 | 230 | 195 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2024 | $28.8m | $4.9m | 0.17 |
| Q4 2024 | $24.2m | $3.2m | 0.13 |
| Q1 2025 | $18.1m | $1.1m | 0.06 |
| Q2 2025 | $30.2m | $1.5m | 0.05 |
Biggest buyers
| AQR CAPITAL MANAGEMENT LLC | Added | +323.3k |
| MILLENNIUM MANAGEMENT LLC | Added | +172.1k |
| Boston Trust Walden Corp | Added | +88.1k |
| MORGAN STANLEY | Added | +86.2k |
| Point72 Asset Management, L.P. | Added | +84.2k |
| TUDOR INVESTMENT CORP ET AL | Added | +80.6k |
| ACADIAN ASSET MANAGEMENT LLC | Added | +68.6k |
| Legal & General Group Plc | Added | +65.9k |
| GOLDMAN SACHS GROUP INC | Added | +60.4k |
| AMERICAN CENTURY COMPANIES INC | Added | +59.0k |
Biggest sellers
| VOYA INVESTMENT MANAGEMENT LLC | Reduced | -294.9k |
| CDAM (UK) Ltd | Reduced | -211.6k |
| AMERIPRISE FINANCIAL INC | Reduced | -182.9k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | Reduced | -144.4k |
| MARSHALL WACE, LLP | Reduced | -132.3k |
| AMERICAN CAPITAL MANAGEMENT INC | Reduced | -118.4k |
| CITADEL ADVISORS LLC | Sold out | -110.2k |
| Janney Montgomery Scott LLC | Reduced | -108.8k |
| BlackRock, Inc. | Reduced | -93.3k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | Reduced | -81.3k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $20.2m141.2k shares |
| GROUP ONE TRADING LLC | Reduced | $4.5m31.2k shares |
| JANE STREET GROUP, LLC | New | $3.4m24.1k shares |
| CITADEL ADVISORS LLC | Added | $2.1m14.7k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $1.2m8.3k shares |
| CITADEL ADVISORS LLC | Reduced | $242.9k1.7k shares |
| SIMPLEX TRADING, LLC | Reduced | $28.0k200 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution -2.0 pts · filed 2025-04-29 | 14.0% |
| VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 7.2% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-30 | 5.2% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-27; now reported by VANGUARD PORTFOLIO MANAGEMENT LLC)
Insider purchases and sales in Q2 2025
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q3 2023 | 0 | — | 2 | $5.2m | $4.5m |
| Q4 2023 | 0 | — | 4 | $6.2m | $5.6m |
| Q1 2024 | 0 | — | 3 | $3.7m | $3.7m |
| Q2 2024 | 0 | — | 5 | $4.1m | $4.1m |
| Q3 2024 | 1 | $628 | 3 | $3.5m | $3.5m |
| Q4 2024 | 0 | — | 4 | $6.9m | $6.9m |
| Q1 2025 | 0 | — | 3 | $4.7m | $4.7m |
| Q2 2025 | 0 | — | 6 | $5.4m | $5.4m |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2025-06-20 | POSEY BRUCE K CHIEF LEGAL OFFICER | Sold plan | $71.4k525 shares |
| 2025-06-16 | Thakar Sumedh S CEO & PRESIDENT, director | Sold plan | $1.2m8.5k shares |
| 2025-06-16 | Hank Jeffrey P Director | Sold plan | $91.4k657 shares |
| 2025-06-13 | Berquist Thomas Director | Sold plan | $91.0k656 shares |
| 2025-06-13 | Pfeiffer Wendy Director | Sold plan | $27.8k200 shares |
| 2025-06-05 | Kim Joo Mi CHIEF FINANCIAL OFFICER | Sold plan | $118.3k845 shares |
| 2025-06-02 | Thakar Sumedh S CEO & PRESIDENT, director | Sold plan | $841.2k6.0k shares |
| 2025-05-29 | Thakar Sumedh S CEO & PRESIDENT, director | Sold plan | $1.2m8.5k shares |
| 2025-05-20 | POSEY BRUCE K CHIEF LEGAL OFFICER | Sold plan | $72.4k525 shares |
| 2025-05-05 | Hank Jeffrey P Director | Sold plan | $515.7k4.0k shares |
| 2025-05-05 | Kim Joo Mi CHIEF FINANCIAL OFFICER | Sold plan | $129.0k1.0k shares |
| 2025-04-21 | POSEY BRUCE K CHIEF LEGAL OFFICER | Sold plan | $63.6k540 shares |
| 2025-04-14 | Thakar Sumedh S CEO & PRESIDENT, director | Sold plan | $866.7k7.0k shares |
| 2025-04-09 | Kim Joo Mi CHIEF FINANCIAL OFFICER | Sold plan | $169.6k1.4k shares |
| 2025-04-08 | Kim Joo Mi CHIEF FINANCIAL OFFICER | Sold plan | $13.3k111 shares |
| 2025-04-07 | Kim Joo Mi CHIEF FINANCIAL OFFICER | Sold plan | $19.4k162 shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2025
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.02% of their portfolio | 5.6m $803.5m | Reduced -93.3k |
| VANGUARD GROUP INC 0.01% of their portfolio | 4.3m $611.2m | Added +1.5k |
| STATE STREET CORP 0.01% of their portfolio | 1.4m $201.7m | Reduced -32.5k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 1.2m $173.8m | Reduced -57.1k |
| Boston Trust Walden Corp 1.16% of their portfolio | 1.1m $162.6m | Added +88.1k |
| FIRST TRUST ADVISORS LP 0.13% of their portfolio | 1.1m $159.4m | Added +44.0k |
| NEUBERGER BERMAN GROUP LLC 0.12% of their portfolio | 1.1m $153.5m | Reduced -30.7k |
| Legal & General Group Plc 0.04% of their portfolio | 1.1m $150.3m | Added +65.9k |
| AQR CAPITAL MANAGEMENT LLC 0.12% of their portfolio | 1.0m $144.1m | Added +323.3k |
| MORGAN STANLEY 0.01% of their portfolio | 944.1k $134.9m | Added +86.2k |
| Fundsmith LLP 0.45% of their portfolio | 718.6k $102.7m | Unchanged |
| DIMENSIONAL FUND ADVISORS LP 0.02% of their portfolio | 681.4k $97.3m | Added +12.0k |
| Penserra Capital Management LLC 1.09% of their portfolio | 545.4k $77.9m | Added +46.3k |
| NORTHERN TRUST CORP 0.01% of their portfolio | 541.3k $77.3m | Reduced -17.0k |
| JPMORGAN CHASE & CO 0.01% of their portfolio | 521.9k $74.6m | Added +30.4k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.14% of their portfolio | 506.8k $72.4m | Added +57.1k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.01% of their portfolio | 498.8k $71.3m | Reduced -144.4k |
| LONDON CO OF VIRGINIA 0.38% of their portfolio | 470.0k $67.1m | Added +2.0k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 469.7k $67.1m | Added +12.8k |
| AMERICAN CAPITAL MANAGEMENT INC 2.47% of their portfolio | 417.3k $59.6m | Reduced -118.4k |
| CDAM (UK) Ltd 9.50% of their portfolio | 399.9k $57.1m | Reduced -211.6k |
| Bank of New York Mellon Corp 0.01% of their portfolio | 382.1k $54.6m | Added +10.4k |
| Invesco Ltd. 0.01% of their portfolio | 380.6k $54.4m | Reduced -35.0k |
| RENAISSANCE TECHNOLOGIES LLC 0.07% of their portfolio | 360.4k $51.5m | Reduced -21.9k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 322.7k $46.1m | Added +54.8k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 318.9k $45.6m | Added +60.4k |
| VOYA INVESTMENT MANAGEMENT LLC 0.04% of their portfolio | 291.2k $41.6m | Reduced -294.9k |
| MILLENNIUM MANAGEMENT LLC 0.02% of their portfolio | 190.3k $27.2m | Added +172.1k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 175.8k $25.1m | Added +5.7k |
| BARCLAYS PLC 0.01% of their portfolio | 173.7k $24.8m | Added +27.5k |
| FORT WASHINGTON INVESTMENT ADVISORS INC /OH/ 0.13% of their portfolio | 156.6k $22.4m | Added +2.8k |
| BNP PARIBAS FINANCIAL MARKETS 0.02% of their portfolio | 155.2k $22.2m | Added +20.0k |
| TWO SIGMA INVESTMENTS, LP 0.04% of their portfolio | 147.8k $21.1m | Added +7.2k |
| Retirement Systems of Alabama 0.08% of their portfolio | 147.4k $21.1m | Reduced -135 |
| CANADA LIFE ASSURANCE Co 0.03% of their portfolio | 145.7k $20.8m | Added +243 |
| Fisher Asset Management, LLC 0.01% of their portfolio | 144.0k $20.6m | Reduced -26.0k |
| Point72 Asset Management, L.P. 0.05% of their portfolio | 138.3k $19.8m | Added +84.2k |
| ACADIAN ASSET MANAGEMENT LLC 0.04% of their portfolio | 136.8k $19.5m | Added +68.6k |
| ENVESTNET ASSET MANAGEMENT INC 0.01% of their portfolio | 135.0k $19.3m | Added +7.0k |
| Cubist Systematic Strategies, LLC 0.21% of their portfolio | 134.3k $19.2m | Added +49.3k |
| Nuveen, LLC 0.01% of their portfolio | 134.0k $19.2m | Added +28.5k |
| CANADA PENSION PLAN INVESTMENT BOARD 0.02% of their portfolio | 127.6k $18.2m | Added +11.4k |
| Qube Research & Technologies Ltd 0.03% of their portfolio | 126.8k $18.1m | Reduced -48.7k |
| TUDOR INVESTMENT CORP ET AL 0.13% of their portfolio | 123.2k $17.6m | Added +80.6k |
| RHUMBLINE ADVISERS 0.01% of their portfolio | 120.4k $17.2m | Added +3.0k |
| NORRIS PERNE & FRENCH LLP/MI 1.18% of their portfolio | 119.0k $17.0m | Added +717 |
| Connor, Clark & Lunn Investment Management Ltd. 0.06% of their portfolio | 114.1k $16.3m | Added +25.9k |
| UBS Group AG 0.00% of their portfolio | 112.9k $16.1m | Added +18.9k |
| TWO SIGMA ADVISERS, LP 0.03% of their portfolio | 111.6k $15.9m | Reduced -2.9k |
| Vident Advisory, LLC 0.17% of their portfolio | 107.4k $15.3m | Added +25.3k |
| AMERICAN CENTURY COMPANIES INC 0.01% of their portfolio | 107.0k $15.3m | Added +59.0k |
| CULLINAN ASSOCIATES INC 0.97% of their portfolio | 102.8k $14.7m | Unchanged |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 101.0k $14.4m | Reduced -9.1k |
| Trexquant Investment LP 0.15% of their portfolio | 95.8k $13.7m | Added +4.6k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 95.6k $13.7m | Reduced -5.3k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 91.0k $13.0m | Added +35.1k |
| Clearbridge Investments, LLC 0.01% of their portfolio | 85.6k $12.2m | Reduced -14.7k |
| Man Group plc 0.03% of their portfolio | 85.0k $12.1m | Added +22.0k |
| OBERWEIS ASSET MANAGEMENT INC/ 0.52% of their portfolio | 84.0k $12.0m | Added +11.9k |
| ALGERT GLOBAL LLC 0.24% of their portfolio | 80.9k $11.6m | Added +54.6k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.04% of their portfolio | 80.3k $11.5m | Reduced -81.3k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 79.8k $11.4m | Added +55.4k |
| NORDEA INVESTMENT MANAGEMENT AB 0.01% of their portfolio | 75.7k $10.7m | Added +774 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.01% of their portfolio | 72.8k $10.4m | Added +35.8k |
| Swiss National Bank 0.01% of their portfolio | 69.7k $10.0m | Reduced -1.2k |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 0.02% of their portfolio | 69.3k $9.9m | Added +15.9k |
| FEDERATED HERMES, INC. 0.02% of their portfolio | 69.1k $9.9m | Added +216 |
| Gotham Asset Management, LLC 0.06% of their portfolio | 68.6k $9.8m | Reduced -3.4k |
| California Public Employees Retirement System 0.01% of their portfolio | 67.2k $9.6m | Added +1.4k |
| BLI - Banque de Luxembourg Investments 0.27% of their portfolio | 65.7k $9.3m | Reduced -9.8k |
| Vontobel Holding Ltd. 0.03% of their portfolio | 65.3k $9.3m | Added +7.0k |
| HERALD INVESTMENT MANAGEMENT Ltd 1.38% of their portfolio | 65.0k $9.3m | Unchanged |
| Clark Capital Management Group, Inc. 0.06% of their portfolio | 63.4k $9.1m | Added +34.9k |
| Edgestream Partners, L.P. 0.24% of their portfolio | 60.3k $8.6m | Added +26.8k |
| Robeco Institutional Asset Management B.V. 0.01% of their portfolio | 56.4k $8.1m | Added +9.5k |
| Squarepoint Ops LLC 0.02% of their portfolio | 55.3k $7.9m | Added +30.3k |
| Park State Asset Management 4.69% of their portfolio | 51.2k $7.3m | Reduced -2.1k |
| CITIGROUP INC 0.00% of their portfolio | 49.6k $7.1m | Reduced -13.1k |
| FMR LLC 0.00% of their portfolio | 49.2k $7.0m | Reduced -17.4k |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 0.19% of their portfolio | 48.4k $6.9m | Unchanged |
| NICHOLAS COMPANY, INC. 0.11% of their portfolio | 47.5k $6.8m | Reduced -10 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.01% of their portfolio | 47.4k $6.8m | Reduced -473 |
| NORGES BANK 0.00% of their portfolio | 45.4k $6.5m | Reduced -22.3k |
| BLAIR WILLIAM & CO/IL 0.02% of their portfolio | 45.3k $6.5m | Added +2.4k |
| Asset Management One Co., Ltd. 0.02% of their portfolio | 45.2k $6.5m | Unchanged |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 44.7k $6.4m | Added +10.3k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 43.1k $6.2m | Reduced -182.9k |
| TEACHER RETIREMENT SYSTEM OF TEXAS 0.03% of their portfolio | 42.5k $6.1m | Reduced -1.2k |
| Cerity Partners LLC 0.01% of their portfolio | 42.3k $6.0m | Added +37.9k |
| CAPITAL FUND MANAGEMENT S.A. 0.07% of their portfolio | 42.0k $6.0m | Reduced -8.6k |
| Russell Investments Group, Ltd. 0.01% of their portfolio | 41.7k $5.9m | Added +15.0k |
| Tandem Investment Advisors, Inc. 0.21% of their portfolio | 41.6k $5.9m | Added +210 |
| Grandeur Peak Global Advisors, LLC 0.71% of their portfolio | 41.4k $5.9m | Reduced -1.0k |
| MetLife Investment Management, LLC 0.03% of their portfolio | 40.7k $5.8m | Reduced -434 |
| Quantbot Technologies LP 0.15% of their portfolio | 40.7k $5.8m | Added +5.4k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.01% of their portfolio | 40.0k $5.7m | Reduced -1.9k |
| Summit Creek Advisors LLC 0.78% of their portfolio | 39.0k $5.6m | Reduced -1.7k |
| IQ EQ FUND MANAGEMENT (IRELAND) Ltd 0.48% of their portfolio | 38.1k $5.4m | Added +3.2k |
| RENAISSANCE GROUP LLC 0.21% of their portfolio | 38.0k $5.4m | Added +8.9k |
| JANUS HENDERSON GROUP PLC 0.00% of their portfolio | 37.9k $5.4m | Reduced -6.4k |