QLYS · Qualys, Inc. · Holdings
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Institutional Ownership Trend
Superinvestors Holding QLYS
All superinvestors →Holder Concentration
Across 441 13F filersWho Holds QLYS
Last 8 quarters through Sep 30, 2026 (filing window open)Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.
Jun 30, 2026, the newest closed quarter: 435 filers, like-for-like change -0.5%; actively managed books -3.3%; index-like books +4.3%.
| Holder type | Share | Filers | Change |
|---|---|---|---|
| Registered adviser | 48.4% | 216 | +1.6% |
| Exempt adviser | 0.2% | 7 | -77.0% |
| Adviser | 2.3% | 13 | -30.1% |
| Bank | 8.7% | 23 | -15.1% |
| Insurer | 0.4% | 4 | +7.2% |
| Broker-dealer | 0.2% | 1 | +3.8% |
| Benefit plan | 0.2% | 8 | -52.8% |
| Non-US | 1.5% | 14 | -41.5% |
| Holding company | 19.1% | 12 | +1.8% |
| Unknown | 19.1% | 137 | +17.9% |
| Style | Share | Filers | Change |
|---|---|---|---|
| Index-like | 39.4% | 44 | +4.3% |
| Systematic-like | 4.6% | 18 | -6.6% |
| Concentrated | 3.1% | 82 | -13.7% |
| Diversified active | 53.0% | 291 | -2.4% |
| Not measured | 0.0% | 0 | — |
| Unknown | 0.0% | 0 | — |
| Turnover | Share | Filers | Change |
|---|---|---|---|
| Low turnover | 57.9% | 267 | -2.5% |
| Medium turnover | 22.3% | 97 | +1.4% |
| High turnover | 6.7% | 43 | +3.9% |
| Unknown | 13.1% | 28 | +3.5% |
| Not measured | 0.0% | 0 | — |
| Holding horizon | Share | Filers | Change |
|---|---|---|---|
| Short horizon | 13.3% | 40 | +0.4% |
| Medium horizon | 18.9% | 72 | +5.6% |
| Long horizon | 64.9% | 303 | -0.4% |
| Unknown | 2.9% | 20 | -30.3% |
| Not measured | 0.0% | 0 | — |
| 13F book size | Share | Filers | Change |
|---|---|---|---|
| Under $1B | 1.8% | 99 | -38.0% |
| $1B to $10B | 4.7% | 127 | -7.5% |
| $10B to $100B | 20.6% | 130 | -6.1% |
| $100B or more | 72.9% | 79 | +3.3% |
| Not measured | 0.0% | 0 | — |
| Client base | Share | Filers | Change |
|---|---|---|---|
| Individuals and high net worth | 5.9% | 129 | +25.3% |
| Pooled investment vehicles | 8.0% | 19 | +2.6% |
| Registered funds and BDCs | 25.4% | 28 | +1.4% |
| Pension and profit sharing plans | 0.0% | 3 | +37.8% |
| Insurance companies | 1.6% | 5 | +63.5% |
| Governments and sovereign funds | 1.0% | 6 | -58.4% |
| Banks and thrifts | 0.0% | 1 | -14.2% |
| Other investment advisers | 0.1% | 7 | -0.3% |
| Other | 0.0% | 1 | -86.0% |
| Diversified | 6.4% | 17 | -1.9% |
| Corporations | 0.0% | 0 | — |
| Unknown | 51.6% | 219 | -2.3% |
| Private funds | Share | Filers | Change |
|---|---|---|---|
| Hedge funds | 16.1% | 40 | +3.0% |
| Private equity funds | 0.6% | 9 | +31.0% |
| Venture capital funds | 0.0% | 1 | -46.2% |
| Real estate funds | 0.1% | 3 | +480.2% |
| Liquidity funds | 0.0% | 1 | new |
| Securitized asset funds | 0.2% | 2 | -80.3% |
| Other private funds | 3.0% | 15 | -29.4% |
| Mixed private funds | 0.3% | 2 | +3.2% |
| Private funds, type not stated | 1.3% | 4 | -18.5% |
| No private funds | 27.0% | 145 | +7.1% |
| Unknown | 51.4% | 213 | -1.0% |
| Location | Share | Filers | Change |
|---|---|---|---|
| United States | 89.0% | 359 | +1.2% |
| Outside the US | 11.0% | 76 | -12.3% |
The Sep 30, 2026 filing window is still open, so its bar carries the Jun 30, 2026 positions of filers that have not filed yet.
How the mix is measured
Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.
Excluded 5 holders with no observed 2026-03-31 13F and 6 holders with no observed 2026-06-30 13F. Compared across CIK changes: JANUS HENDERSON GROUP PLC continues as Jupiter Topco LLC.
Conviction and Crowding
435 13F filers, quarter ended Jun 30, 2026Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.
Managers in the top fifth by current three-year FundScore alpha were net buyers of $0 (0 buying, 0 selling).
Estimated Holder Cost Basis
Quarter ended Jun 30, 2026, on that quarter's share basisEstimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.
Estimated cost covers 29.6% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.
Shared Holders
Companies QLYS's active holders also own, quarter ended Jun 30, 2026| # | Company | Shared holders |
|---|---|---|
| 1 | ATEN A10 Networks, Inc. | 5 |
| 2 | PLUS Eplus Inc | 5 |
| 3 | EVTC EVERTEC, Inc. | 3 |
| 4 | MEDP Medpace Holdings, Inc. | 9 |
| 5 | CCSI Consensus Cloud Solutions, Inc. | 3 |
| 6 | TENB Tenable Holdings, Inc. | 4 |
| 7 | FDS Factset Research Systems Inc | 8 |
| 8 | VRNS Varonis Systems Inc | 4 |
| 9 | PAYC Paycom Software, Inc. | 6 |
| 10 | DT Dynatrace, Inc. | 6 |
Shareholder Targets
13F filers that own its peers but not QLYS, quarter ended Jun 30, 2026Found through its holder-overlap peers: ATEN, PLUS, EVTC, MEDP, CCSI, TENB, FDS, VRNS, PAYC, DT, FTDR, COLL, JKHY, DORM, HAE, GEN, DOCU, VPG, KWR, AWI. 1,540 filers in all.
| # | Filer | In peers | Largest peers |
|---|---|---|---|
| 1 | BAMCO INC /NY/ Registered adviser, Concentrated | $1,036,140,488 3 held | FDS, DT, JKHY |
| 2 | Boston Partners Registered adviser, Diversified active | $1,031,727,814 8 held | GEN, FTDR, HAE |
| 3 | KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC Registered adviser, Diversified active | $942,146,638 6 held | JKHY, AWI, EVTC |
| 4 | FULLER & THALER ASSET MANAGEMENT, INC. Registered adviser, Diversified active | $835,918,232 8 held | FTDR, AWI, MEDP |
| 5 | BAILLIE GIFFORD & CO Adviser, Diversified active | $437,184,597 3 held | MEDP, PAYC, JKHY |
| 6 | LOOMIS SAYLES & CO L P Registered adviser, Diversified active | $435,819,253 7 held | FDS, DORM, ATEN |
| 7 | WASATCH ADVISORS LP Registered adviser, Diversified active | $432,742,382 3 held | MEDP, FTDR, ATEN |
| 8 | HARRIS ASSOCIATES L P Registered adviser, Index-like | $426,991,013 1 held | PAYC |
| 9 | River Road Asset Management, LLC Registered adviser, Diversified active | $405,087,411 4 held | PLUS, AWI, HAE |
| 10 | JANE STREET GROUP, LLC Unknown, Diversified active | $400,786,102 15 held | DT, TENB, FDS |
Fund Ownership of QLYS by Fund Type
Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026Index funds and index ETFs hold 37.17% of shares outstanding.
| Fund type | Of shares outstanding | Shares |
|---|---|---|
| Index funds | 5.00% | 1,728,460 |
| Index ETFs | 32.17% | 11,129,241 |
| Active ETFs | 1.59% | 550,527 |
| Active funds | 8.34% | 2,883,599 |
| Unclassified | 1.47% | 507,898 |
| All registered funds | 48.56% | 16,799,725 |
How fund types are measured
Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.
| Holder | Value (USD) | % of 13F | Shares | Type | Filed | Open |
|---|---|---|---|---|---|---|
| Mega BlackRock, Inc. Holding company | $792,316,502 | 15.30% | 5,762,721 | Shares | 2026-08-07 | |
| Mega VANGUARD PORTFOLIO MANAGEMENT LLC Registered adviser | $370,664,928 | 7.16% | 2,695,941 | Shares | 2026-08-13 | |
| Mega VANGUARD CAPITAL MANAGEMENT LLC Registered adviser | $218,654,746 | 4.22% | 1,590,332 | Shares | 2026-08-13 | |
| Mega STATE STREET CORP Bank | $200,207,163 | 3.87% | 1,456,158 | Shares | 2026-09-22 | |
| Mega Legal & General Group Plc | $197,624,412 | 3.82% | 1,437,373 | Shares | 2026-08-14 | |
| Mega GEODE CAPITAL MANAGEMENT, LLC Registered adviser | $193,803,565 | 3.74% | 1,409,583 | Shares | 2026-08-12 | |
| Mega AQR CAPITAL MANAGEMENT LLC Registered adviser | $191,767,062 | 3.70% | 1,394,771 | Shares | 2026-08-14 | |
| Mega FIRST TRUST ADVISORS LP Registered adviser | $155,453,893 | 3.00% | 1,130,656 | Shares | 2026-08-11 | |
| Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP Registered adviser | $135,475,084 | 2.62% | 985,345 | Shares | 2026-08-13 | |
| Large Boston Trust Walden Corp | $135,412,388 | 2.62% | 984,889 | Shares | 2026-07-24 | |
| Large Penserra Capital Management LLC Registered adviser | $107,251,686 | 2.07% | 780,069 | Shares | 2026-08-13 | |
| Mega MILLENNIUM MANAGEMENT LLC Registered adviser | $104,864,860 | 2.03% | 762,709 | Shares | 2026-08-14 | |
| Mega DIMENSIONAL FUND ADVISORS LP Registered adviser | $98,889,405 | 1.91% | 719,248 | Shares | 2026-08-11 | |
| Mega MORGAN STANLEY Holding company | $85,340,723 | 1.65% | 620,705 | Shares | 2026-08-13 | |
| Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $76,133,299 | 1.47% | 553,737 | Shares | 2026-08-14 | |
| Large RWA WEALTH PARTNERS, LLC Registered adviser | $75,448,462 | 1.46% | 548,756 | Shares | 2026-08-07 | |
| Large Clark Capital Management Group, Inc. Registered adviser | $74,753,725 | 1.44% | 543,703 | Shares | 2026-08-11 | |
| Large ACADIAN ASSET MANAGEMENT LLC | $74,557,939 | 1.44% | 542,279 | Shares | 2026-08-13 | |
| Mid Portolan Capital Management, LLC | $72,843,164 | 1.41% | 529,807 | Shares | 2026-08-14 | |
| Mega VOYA INVESTMENT MANAGEMENT LLC Registered adviser | $71,699,522 | 1.38% | 521,489 | Shares | 2026-08-12 | |
| Mega NORTHERN TRUST CORP Bank | $71,102,538 | 1.37% | 517,147 | Shares | 2026-08-13 | |
| Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC Registered adviser | $70,762,940 | 1.37% | 514,677 | Shares | 2026-08-14 | |
| Large LONDON CO OF VIRGINIA Registered adviser | $58,889,304 | 1.14% | 428,317 | Shares | 2026-08-14 | |
| Mega Invesco Ltd. Adviser | $58,167,066 | 1.12% | 423,064 | Shares | 2026-08-14 | |
| Mega GOLDMAN SACHS GROUP INC Holding company | $54,587,378 | 1.05% | 397,028 | Shares | 2026-08-14 | |
| Mega CITADEL ADVISORS LLC Registered adviser | $51,990,330 | 1.00% | 378,139 | Shares | 2026-09-02 | |
| Large FORT WASHINGTON INVESTMENT ADVISORS INC /OH/ | $40,874,184 | 0.79% | 218,345 | Shares | 2026-10-15 | |
| Mega JPMORGAN CHASE & CO Bank | $40,103,217 | 0.77% | 291,681 | Shares | 2026-08-12 | |
| Large Point72 Asset Management, L.P. Registered adviser | $39,307,703 | 0.76% | 285,895 | Shares | 2026-08-14 | |
| Large RENAISSANCE TECHNOLOGIES LLC Registered adviser | $39,060,909 | 0.75% | 284,100 | Shares | 2026-08-13 | |
| Mega Bank of New York Mellon Corp Bank | $39,044,405 | 0.75% | 283,980 | Shares | 2026-08-06 | |
| Mega VANGUARD FIDUCIARY TRUST CO | $34,872,963 | 0.67% | 253,640 | Shares | 2026-08-13 | |
| Mega UBS Group AG Bank | $33,577,806 | 0.65% | 244,220 | Shares | 2026-08-13 | |
| Small CDAM (UK) Ltd Registered adviser | $30,228,826 | 0.58% | 219,862 | Shares | 2026-08-13 | |
| Mega ENVESTNET ASSET MANAGEMENT INC Registered adviser | $29,314,655 | 0.57% | 213,213 | Shares | 2026-09-23 | |
| Large Retirement Systems of Alabama | $23,935,496 | 0.46% | 174,089 | Shares | 2026-07-28 | |
| Large CANADA LIFE ASSURANCE Co | $23,892,874 | 0.46% | 173,779 | Shares | 2026-08-13 | |
| Large PEAK6 LLC Broker-dealer | $22,685,850 | 0.44% | 165,000 | Call | 2026-08-13 | |
| Mega BANK OF AMERICA CORP /DE/ Bank | $21,852,245 | 0.42% | 158,937 | Shares | 2026-08-14 | |
| Mega PRINCIPAL FINANCIAL GROUP INC Insurer | $20,396,090 | 0.39% | 148,346 | Shares | 2026-08-04 | |
| Mega WELLINGTON MANAGEMENT GROUP LLP Holding company | $19,447,134 | 0.38% | 141,444 | Shares | 2026-08-14 | |
| Mega BNP PARIBAS ARBITRAGE, SA Non-US | $18,898,000 | 0.37% | 137,450 | Shares | 2026-08-13 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $18,616,146 | 0.36% | 135,400 | Call | 2026-08-14 | |
| Mega Jupiter Topco LLC | $18,550,425 | 0.36% | 134,922 | Shares | 2026-08-14 | |
| Large Vontobel Holding Ltd. | $17,907,364 | 0.35% | 95,659 | Shares | 2026-10-16 | |
| Mid SYSTEMATIC FINANCIAL MANAGEMENT LP Registered adviser | $17,437,581 | 0.34% | 126,828 | Shares | 2026-08-14 | |
| Mega Russell Investments Group, Ltd. | $17,155,861 | 0.33% | 124,779 | Shares | 2026-08-06 | |
| Mega Fisher Asset Management, LLC Adviser | $15,801,588 | 0.31% | 114,929 | Shares | 2026-08-04 | |
| Mega Nuveen, LLC | $15,469,823 | 0.30% | 112,516 | Shares | 2026-08-11 | |
| Mid Tributary Capital Management, LLC Registered adviser | $15,437,102 | 0.30% | 112,278 | Shares | 2026-07-23 | |
| Mega RHUMBLINE ADVISERS Registered adviser | $14,708,680 | 0.28% | 106,980 | Shares | 2026-08-12 | |
| Mid CULLINAN ASSOCIATES INC Registered adviser | $14,133,972 | 0.27% | 102,800 | Shares | 2026-07-29 | |
| Large Pacer Advisors, Inc. | $13,855,967 | 0.27% | 100,778 | Shares | 2026-08-13 | |
| Mega ALLIANCEBERNSTEIN L.P. Registered adviser | $13,825,581 | 0.27% | 100,557 | Shares | 2026-08-14 | |
| Large Vident Advisory, LLC Registered adviser | $13,602,434 | 0.26% | 98,934 | Shares | 2026-08-12 | |
| Mega DEUTSCHE BANK AG\ Non-US | $12,665,302 | 0.24% | 92,118 | Shares | 2026-08-07 | |
| Small WINMILL & CO. INC Adviser | $12,187,250 | 0.24% | 88,641 | Shares | 2026-08-13 | |
| Mega JANE STREET GROUP, LLC | $12,044,124 | 0.23% | 87,600 | Put | 2026-08-14 | |
| Large TUDOR INVESTMENT CORP ET AL Registered adviser | $12,044,124 | 0.23% | 87,600 | Call | 2026-08-14 | |
| Mid Willis Investment Counsel Registered adviser | $11,951,784 | 0.23% | 63,845 | Shares | 2026-10-20 | |
| Mega SCHRODER INVESTMENT MANAGEMENT GROUP Registered adviser | $11,675,649 | 0.23% | 84,920 | Shares | 2026-08-13 | |
| Mega CITIGROUP INC Bank | $11,480,688 | 0.22% | 83,502 | Shares | 2026-08-03 | |
| Mega Creative Planning Registered adviser | $11,385,271 | 0.22% | 82,808 | Shares | 2026-08-13 | |
| Mega California Public Employees Retirement System | $11,270,467 | 0.22% | 81,973 | Shares | 2026-08-14 | |
| Large FEDERATED HERMES, INC. Adviser | $10,869,408 | 0.21% | 79,056 | Shares | 2026-08-12 | |
| Large Jump Financial, LLC | $10,576,143 | 0.20% | 76,923 | Shares | 2026-08-13 | |
| Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC Registered adviser | $10,391,078 | 0.20% | 75,577 | Shares | 2026-08-13 | |
| Large Gotham Asset Management, LLC Registered adviser | $10,382,419 | 0.20% | 75,514 | Shares | 2026-08-14 | |
| Mega Swiss National Bank | $9,844,284 | 0.19% | 71,600 | Shares | 2026-08-11 | |
| Mega VICTORY CAPITAL MANAGEMENT INC Registered adviser | $9,817,610 | 0.19% | 71,406 | Shares | 2026-08-07 | |
| Large Freestone Grove Partners LP Registered adviser | $9,452,987 | 0.18% | 68,754 | Shares | 2026-08-14 | |
| Mega AMERICAN CENTURY COMPANIES INC | $9,275,900 | 0.18% | 67,466 | Shares | 2026-08-12 | |
| Mega WELLS FARGO & COMPANY/MN Bank | $9,058,802 | 0.17% | 65,887 | Shares | 2026-08-14 | |
| Large BI Asset Management Fondsmaeglerselskab A/S | $8,742,988 | 0.17% | 46,704 | Shares | 2026-10-22 | |
| Mega NORDEA INVESTMENT MANAGEMENT AB Non-US | $8,557,377 | 0.17% | 62,240 | Shares | 2026-08-05 | |
| Small Decker Retirement Planning Inc. Registered adviser | $8,299,137 | 0.16% | 44,333 | Shares | 2026-10-19 | |
| Large Quantinno Capital Management LP Registered adviser | $8,255,174 | 0.16% | 60,042 | Shares | 2026-08-13 | |
| Mega LPL Financial LLC Broker-dealer | $7,746,599 | 0.15% | 56,343 | Shares | 2026-08-07 | |
| Mega NORGES BANK Non-US | $7,330,554 | 0.14% | 53,317 | Shares | 2026-08-12 | |
| Mega CITADEL ADVISORS LLC Registered adviser | $7,039,488 | 0.14% | 51,200 | Call | 2026-09-02 | |
| Large BNP PARIBAS ASSET MANAGEMENT Holding S.A. Non-US | $6,914,920 | 0.13% | 50,294 | Shares | 2026-08-13 | |
| Mid LGT Fund Management Co Ltd. | $6,613,269 | 0.13% | 48,100 | Shares | 2026-08-10 | |
| Mega RAYMOND JAMES FINANCIAL INC | $6,580,820 | 0.13% | 47,864 | Shares | 2026-08-14 | |
| Mega PRICE T ROWE ASSOCIATES INC /MD/ Registered adviser | $6,558,960 | 0.13% | 47,705 | Shares | 2026-08-14 | |
| Small HERALD INVESTMENT MANAGEMENT Ltd Non-US | $6,530,775 | 0.13% | 47,500 | Shares | 2026-07-23 | |
| Mid IQ EQ FUND MANAGEMENT (IRELAND) Ltd Exempt adviser | $6,528,025 | 0.13% | 47,480 | Shares | 2026-07-31 | |
| Mid NICHOLAS COMPANY, INC. Registered adviser | $6,506,851 | 0.13% | 47,326 | Shares | 2026-08-05 | |
| Large Corient Private Wealth LLC Registered adviser | $6,257,582 | 0.12% | 45,513 | Shares | 2026-08-27 | |
| Mega SEI INVESTMENTS CO Holding company | $6,054,233 | 0.12% | 44,034 | Shares | 2026-08-14 | |
| Mega FRANKLIN RESOURCES INC Adviser | $5,947,126 | 0.11% | 43,255 | Shares | 2026-08-13 | |
| Small Park State Asset Management | $5,941,630 | 0.11% | 43,215 | Shares | 2026-08-07 | |
| Mega AMERIPRISE FINANCIAL INC Adviser | $5,929,804 | 0.11% | 43,129 | Shares | 2026-08-14 | |
| Small Taylor Hoffman Capital Management LLC Registered adviser | $5,807,165 | 0.11% | 42,237 | Shares | 2026-08-11 | |
| Large Universal- Beteiligungs- und Servicegesellschaft mbH | $5,720,546 | 0.11% | 41,607 | Shares | 2026-08-06 | |
| Mega CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Benefit plan | $5,651,801 | 0.11% | 41,107 | Shares | 2026-08-24 | |
| Small THIRD AVENUE MANAGEMENT LLC Registered adviser | $5,378,608 | 0.10% | 39,120 | Shares | 2026-08-12 | |
| Mega HighTower Advisors, LLC Registered adviser | $5,280,715 | 0.10% | 38,408 | Shares | 2026-08-05 | |
| Mega CITADEL ADVISORS LLC Registered adviser | $5,279,616 | 0.10% | 38,400 | Put | 2026-09-02 | |
| Large MetLife Investment Management, LLC Registered adviser | $5,164,811 | 0.10% | 37,565 | Shares | 2026-08-14 | |
| Mega JANE STREET GROUP, LLC | $5,128,377 | 0.10% | 37,300 | Call | 2026-08-14 |
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