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 ($12.5m this quarter). Holder counts are more reliable. Shares outstanding: 36.3m as of 2025-04-21, 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 ≈ $125.94. Options: 7 managers hold calls ($18.1m notional), 4 hold puts ($1.1m).
Trends to Q1 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 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q2 2023 | 156 | 206 |
| 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 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q2 2024 | $31.8m | $7.5m | 0.24 |
| Q3 2024 | $28.8m | $4.9m | 0.17 |
| Q4 2024 | $24.2m | $3.2m | 0.13 |
| Q1 2025 | $18.1m | $1.1m | 0.06 |
Biggest buyers
| AQR CAPITAL MANAGEMENT LLC | Added | +338.7k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | Added | +308.6k |
| VOYA INVESTMENT MANAGEMENT LLC | Added | +302.3k |
| Penserra Capital Management LLC | Added | +173.5k |
| Fundsmith LLP | Added | +170.6k |
| FIRST TRUST ADVISORS LP | Added | +151.6k |
| Retirement Systems of Alabama | Added | +91.3k |
| TWO SIGMA INVESTMENTS, LP | Added | +70.9k |
| Point72 Asset Management, L.P. | Added | +54.0k |
| Park State Asset Management | New | +53.2k |
Biggest sellers
| CONGRESS ASSET MANAGEMENT CO | Reduced | -678.6k |
| Assenagon Asset Management S.A. | Reduced | -284.2k |
| Van Berkom & Associates Inc. | Sold out | -273.3k |
| BlackRock, Inc. | Reduced | -141.7k |
| GOLDMAN SACHS GROUP INC | Reduced | -123.7k |
| MARSHALL WACE, LLP | Reduced | -115.9k |
| Cubist Systematic Strategies, LLC | Reduced | -108.2k |
| JUPITER ASSET MANAGEMENT LTD | Sold out | -88.2k |
| MORGAN STANLEY | Reduced | -85.7k |
| RAYMOND JAMES FINANCIAL INC | Reduced | -85.4k |
Biggest calls
| GROUP ONE TRADING LLC | Reduced | $6.6m52.7k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $6.0m47.6k shares |
| Walleye Trading LLC | Added | $3.4m27.1k shares |
| CITADEL ADVISORS LLC | Reduced | $957.1k7.6k shares |
| SIMPLEX TRADING, LLC | Added | $818.0k6.5k shares |
| WOLVERINE TRADING, LLC | Reduced | $317.9k2.5k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| CITADEL ADVISORS LLC | Reduced | $516.3k4.1k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $491.1k3.9k shares |
| SIMPLEX TRADING, LLC | New | $62.0k500 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 Q1 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 |
|---|---|---|---|---|---|
| Q2 2023 | 0 | — | 3 | $7.4m | $6.0m |
| 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 |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2025-03-20 | POSEY BRUCE K CHIEF LEGAL OFFICER | Sold plan | $67.8k524 shares |
| 2025-03-14 | Thakar Sumedh S CEO & PRESIDENT, director | Sold plan | $876.3k7.0k shares |
| 2025-03-05 | Kim Joo Mi CHIEF FINANCIAL OFFICER | Sold plan | $132.8k1.0k shares |
| 2025-02-20 | POSEY BRUCE K CHIEF LEGAL OFFICER | Sold plan | $73.2k525 shares |
| 2025-02-14 | Thakar Sumedh S CEO & PRESIDENT, director | Sold plan | $995.2k7.0k shares |
| 2025-02-13 | Kim Joo Mi CHIEF FINANCIAL OFFICER | Sold plan | $636.2k4.5k shares |
| 2025-02-10 | Kim Joo Mi CHIEF FINANCIAL OFFICER | Sold plan | $628.2k4.5k shares |
| 2025-01-21 | POSEY BRUCE K CHIEF LEGAL OFFICER | Sold plan | $123.2k882 shares |
| 2025-01-14 | Thakar Sumedh S CEO & PRESIDENT, director | Sold plan | $941.4k7.0k shares |
| 2025-01-06 | Kim Joo Mi CHIEF FINANCIAL OFFICER | Sold plan | $226.7k1.6k 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, Q1 2025
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.02% of their portfolio | 5.7m $720.0m | Reduced -141.7k |
| VANGUARD GROUP INC 0.01% of their portfolio | 4.3m $538.5m | Reduced -36.4k |
| STATE STREET CORP 0.01% of their portfolio | 1.4m $181.9m | Added +5.0k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 1.3m $160.4m | Reduced -1.8k |
| NEUBERGER BERMAN GROUP LLC 0.12% of their portfolio | 1.1m $139.2m | Reduced -1.1k |
| FIRST TRUST ADVISORS LP 0.12% of their portfolio | 1.1m $135.0m | Added +151.6k |
| Boston Trust Walden Corp 0.97% of their portfolio | 1.0m $132.2m | Added +190 |
| Legal & General Group Plc 0.03% of their portfolio | 985.7k $124.1m | Added +31.2k |
| MORGAN STANLEY 0.01% of their portfolio | 857.9k $108.0m | Reduced -85.7k |
| Fundsmith LLP 0.41% of their portfolio | 718.6k $90.5m | Added +170.6k |
| AQR CAPITAL MANAGEMENT LLC 0.09% of their portfolio | 688.8k $85.4m | Added +338.7k |
| DIMENSIONAL FUND ADVISORS LP 0.02% of their portfolio | 669.3k $84.3m | Added +5.3k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.02% of their portfolio | 643.2k $81.0m | Added +308.6k |
| CDAM (UK) Ltd 12.46% of their portfolio | 611.5k $77.0m | Reduced -260 |
| VOYA INVESTMENT MANAGEMENT LLC 0.04% of their portfolio | 586.1k $73.8m | Added +302.3k |
| NORTHERN TRUST CORP 0.01% of their portfolio | 558.2k $70.3m | Reduced -12.8k |
| AMERICAN CAPITAL MANAGEMENT INC 2.75% of their portfolio | 535.7k $67.5m | Reduced -1.6k |
| Penserra Capital Management LLC 1.12% of their portfolio | 499.1k $62.8m | Added +173.5k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 491.4k $61.9m | Reduced -73.1k |
| LONDON CO OF VIRGINIA 0.34% of their portfolio | 468.0k $58.9m | Added +3.7k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 456.9k $57.5m | Added +317 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.12% of their portfolio | 449.6k $56.6m | Added +26.1k |
| Invesco Ltd. 0.01% of their portfolio | 415.6k $52.3m | Added +11.5k |
| RENAISSANCE TECHNOLOGIES LLC 0.07% of their portfolio | 382.3k $48.1m | Added +6.2k |
| Bank of New York Mellon Corp 0.01% of their portfolio | 371.7k $46.8m | Reduced -3.3k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 267.9k $33.7m | Reduced -28.5k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 258.5k $32.6m | Reduced -123.7k |
| AMERIPRISE FINANCIAL INC 0.01% of their portfolio | 226.0k $28.5m | Reduced -1.3k |
| Qube Research & Technologies Ltd 0.03% of their portfolio | 175.6k $22.1m | Added +12.6k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 170.1k $21.4m | Added +1.4k |
| Fisher Asset Management, LLC 0.01% of their portfolio | 170.0k $21.4m | Reduced -14.0k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.08% of their portfolio | 161.5k $20.3m | Reduced -15.9k |
| FORT WASHINGTON INVESTMENT ADVISORS INC /OH/ 0.12% of their portfolio | 153.8k $19.4m | Reduced -620 |
| Retirement Systems of Alabama 0.07% of their portfolio | 147.5k $18.6m | Added +91.3k |
| BARCLAYS PLC 0.01% of their portfolio | 146.2k $18.4m | Reduced -35.1k |
| CANADA LIFE ASSURANCE Co 0.03% of their portfolio | 145.5k $18.3m | Added +23.2k |
| TWO SIGMA INVESTMENTS, LP 0.04% of their portfolio | 140.6k $17.7m | Added +70.9k |
| MARSHALL WACE, LLP 0.02% of their portfolio | 137.2k $17.3m | Reduced -115.9k |
| BNP PARIBAS FINANCIAL MARKETS 0.01% of their portfolio | 135.2k $17.0m | First filing |
| ENVESTNET ASSET MANAGEMENT INC 0.01% of their portfolio | 128.0k $16.1m | Reduced -40.0k |
| NORRIS PERNE & FRENCH LLP/MI 1.12% of their portfolio | 118.3k $14.9m | Added +3.6k |
| RHUMBLINE ADVISERS 0.01% of their portfolio | 117.4k $14.8m | Added +1.5k |
| CANADA PENSION PLAN INVESTMENT BOARD 0.01% of their portfolio | 116.2k $14.6m | Added +31.9k |
| Janney Montgomery Scott LLC 0.04% of their portfolio | 114.8k $14.5m | Added +1.4k |
| TWO SIGMA ADVISERS, LP 0.03% of their portfolio | 114.5k $14.4m | Added +46.4k |
| CITADEL ADVISORS LLC 0.01% of their portfolio | 110.2k $13.9m | Added +7.5k |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 110.0k $13.9m | Added +1.2k |
| Nuveen, LLC 0.00% of their portfolio | 105.5k $13.3m | First filing |
| CULLINAN ASSOCIATES INC 0.92% of their portfolio | 102.8k $12.9m | Unchanged |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 101.0k $12.7m | Reduced -582 |
| Clearbridge Investments, LLC 0.01% of their portfolio | 100.3k $12.6m | Reduced -61.5k |
| UBS Group AG 0.00% of their portfolio | 94.0k $11.8m | Reduced -21.2k |
| Trexquant Investment LP 0.13% of their portfolio | 91.2k $11.5m | Added +39.2k |
| Connor, Clark & Lunn Investment Management Ltd. 0.05% of their portfolio | 88.2k $11.1m | Reduced -12.1k |
| Cubist Systematic Strategies, LLC 0.14% of their portfolio | 84.9k $10.7m | Reduced -108.2k |
| Vident Advisory, LLC 0.15% of their portfolio | 82.1k $10.3m | Added +28.8k |
| D. E. Shaw & Co., Inc. 0.01% of their portfolio | 79.2k $10.0m | Added +29.7k |
| BLI - Banque de Luxembourg Investments 0.29% of their portfolio | 75.5k $9.6m | Unchanged |
| NORDEA INVESTMENT MANAGEMENT AB 0.01% of their portfolio | 74.9k $9.3m | Added +951 |
| OBERWEIS ASSET MANAGEMENT INC/ 0.45% of their portfolio | 72.1k $9.1m | Added +24.3k |
| Gotham Asset Management, LLC 0.08% of their portfolio | 72.0k $9.1m | Reduced -4.6k |
| Assenagon Asset Management S.A. 0.02% of their portfolio | 71.5k $9.0m | Reduced -284.2k |
| Swiss National Bank 0.01% of their portfolio | 70.9k $8.9m | Reduced -1.5k |
| FEDERATED HERMES, INC. 0.02% of their portfolio | 68.8k $8.7m | Added +20.8k |
| ACADIAN ASSET MANAGEMENT LLC 0.02% of their portfolio | 68.2k $8.6m | Reduced -44.6k |
| NORGES BANK 0.00% of their portfolio | 67.7k $8.5m | Reduced -33.0k |
| FMR LLC 0.00% of their portfolio | 66.5k $8.4m | Added +5.1k |
| California Public Employees Retirement System 0.01% of their portfolio | 65.8k $8.3m | Added +753 |
| HERALD INVESTMENT MANAGEMENT Ltd 1.54% of their portfolio | 65.0k $8.2m | Unchanged |
| Granahan Investment Management, LLC 0.41% of their portfolio | 64.7k $8.1m | Added +17.1k |
| Man Group plc 0.02% of their portfolio | 63.0k $7.9m | Reduced -14.1k |
| CITIGROUP INC 0.01% of their portfolio | 62.7k $7.9m | Added +2.5k |
| Corebridge Financial, Inc. 0.04% of their portfolio | 58.4k $7.3m | Reduced -1.2k |
| Vontobel Holding Ltd. 0.03% of their portfolio | 58.3k $7.3m | Reduced -8.7k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 55.9k $7.0m | Reduced -1.0k |
| BURNEY CO/ 0.25% of their portfolio | 55.4k $7.0m | Added +34.4k |
| Point72 Asset Management, L.P. 0.02% of their portfolio | 54.1k $6.8m | Added +54.0k |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 0.01% of their portfolio | 53.4k $6.7m | Added +12.3k |
| Park State Asset Management 4.10% of their portfolio | 53.2k $6.7m | New |
| CAPITAL FUND MANAGEMENT S.A. 0.08% of their portfolio | 50.6k $6.4m | Reduced -12.6k |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 0.10% of their portfolio | 48.4k $6.1m | Reduced -1.4k |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 48.1k $6.1m | Reduced -35.1k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.01% of their portfolio | 47.9k $6.0m | Added +27.5k |
| NICHOLAS COMPANY, INC. 0.10% of their portfolio | 47.5k $6.0m | Added +15 |
| Robeco Institutional Asset Management B.V. 0.01% of their portfolio | 46.9k $5.9m | Reduced -5.1k |
| Asset Management One Co., Ltd. 0.02% of their portfolio | 45.2k $5.7m | Added +2.0k |
| JANUS HENDERSON GROUP PLC 0.00% of their portfolio | 44.3k $5.6m | Added +2.1k |
| Public Sector Pension Investment Board 0.02% of their portfolio | 44.2k $5.6m | Added +13.8k |
| TEACHER RETIREMENT SYSTEM OF TEXAS 0.02% of their portfolio | 43.7k $5.5m | Added +26.5k |
| VAN ECK ASSOCIATES CORP 0.01% of their portfolio | 43.3k $5.5m | Added +4.5k |
| BLAIR WILLIAM & CO/IL 0.02% of their portfolio | 42.8k $5.4m | Reduced -17.3k |
| TUDOR INVESTMENT CORP ET AL 0.05% of their portfolio | 42.6k $5.4m | New |
| Grandeur Peak Global Advisors, LLC 0.59% of their portfolio | 42.4k $5.3m | Reduced -13.6k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 41.9k $5.3m | Reduced -362 |
| Tandem Investment Advisors, Inc. 0.18% of their portfolio | 41.4k $5.2m | Added +8.1k |
| MetLife Investment Management, LLC 0.03% of their portfolio | 41.2k $5.2m | Reduced -1.2k |
| Summit Creek Advisors LLC 0.75% of their portfolio | 40.8k $5.1m | Reduced -58 |
| JANE STREET GROUP, LLC 0.01% of their portfolio | 38.8k $4.9m | Added +4.6k |
| SYNOVUS FINANCIAL CORP 0.06% of their portfolio | 38.7k $4.9m | Added +21.8k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.00% of their portfolio | 37.1k $4.7m | Reduced -14.9k |