Who owns Qualys (QLYS)
Which tracked institutional funds hold QLYS, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See QLYS company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
175 tracked funds added or opened QLYS while 97 trimmed or exited it between 2026-Q1 and 2026-Q2 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
QLYS’s largest tracked holder by dollar value, BlackRock, Inc., sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in QLYS divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, across 396 tracked filers holding QLYS, 228 increased or opened the position and 243 reduced or closed it; over the same quarter, open-market insider Form 4s were net sales.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in QLYS between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 17
- Point72 Asset Management, L.P.$39M
- WELLINGTON MANAGEMENT GROUP LLP$19M
- Jupiter Topco LLC$19M
- SCHRODER INVESTMENT MANAGEMENT GROUP$11M
- Holocene Advisors, LP$5M
- Heron Bay Capital Management$4M
Full exits 61
- Pacer Advisors, Inc.$65M
- Penserra Capital Management LLC$64M
- Fundsmith LLP$20M
- CANADA LIFE ASSURANCE Co$17M
- ACADIAN ASSET MANAGEMENT LLC$16M
- JANUS HENDERSON GROUP PLC$11M
Largest adds
- BlackRock, Inc.$506M
- VANGUARD PORTFOLIO MANAGEMENT LLC$148M
- Legal & General Group Plc$107M
- AQR CAPITAL MANAGEMENT LLC$100M
- MILLENNIUM MANAGEMENT LLC$84M
- VANGUARD CAPITAL MANAGEMENT LLC$79M
Largest trims
- NEUBERGER BERMAN GROUP LLC$41M
- JPMORGAN CHASE & CO$29M
- UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC$26M
- Alyeska Investment Group, L.P.$22M
- TUDOR INVESTMENT CORP ET AL$19M
- Trexquant Investment LP$13M
Institutional holders
One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BlackRock, Inc. added | 5,762,721 | $792M | 17.3% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC added | 2,695,941 | $371M | 8.1% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC added | 1,590,332 | $219M | 4.8% | 2026-Q2 |
| STATE STREET CORP added | 1,456,158 | $200M | 4.4% | 2026-Q2 |
| Legal & General Group Plc added | 1,437,373 | $198M | 4.3% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 1,409,583 | $194M | 4.2% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC added | 1,394,771 | $191M | 4.2% | 2026-Q2 |
| FIRST TRUST ADVISORS LP added | 1,130,656 | $155M | 3.4% | 2026-Q2 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP added | 985,345 | $135M | 3.0% | 2026-Q2 |
| Boston Trust Walden Corp trimmed | 984,889 | $135M | 3.0% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC added | 762,709 | $105M | 2.3% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 719,248 | $99M | 2.2% | 2026-Q2 |
| MORGAN STANLEY trimmed | 620,705 | $85M | 1.9% | 2026-Q2 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. added | 553,737 | $76M | 1.7% | 2026-Q2 |
| RWA WEALTH PARTNERS, LLC trimmed | 548,756 | $75M | 1.6% | 2026-Q2 |
| Clark Capital Management Group, Inc. added | 543,703 | $75M | 1.6% | 2026-Q2 |
| Portolan Capital Management, LLC added | 529,807 | $73M | 1.6% | 2026-Q2 |
| VOYA INVESTMENT MANAGEMENT LLC added | 521,489 | $72M | 1.6% | 2026-Q2 |
| NORTHERN TRUST CORP added | 517,147 | $71M | 1.5% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 514,677 | $71M | 1.5% | 2026-Q2 |
| LONDON CO OF VIRGINIA trimmed | 428,317 | $59M | 1.3% | 2026-Q2 |
| Invesco Ltd. added | 423,064 | $58M | 1.3% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC added | 397,028 | $55M | 1.2% | 2026-Q2 |
| CITADEL ADVISORS LLC added | 378,139 | $52M | 1.1% | 2026-Q2 |
| FORT WASHINGTON INVESTMENT ADVISORS INC /OH/ added | 368,865 | $51M | 1.1% | 2026-Q2 |
| JPMORGAN CHASE & CO trimmed | 291,681 | $38M | 0.8% | 2026-Q2 |
| Point72 Asset Management, L.P. added | 285,895 | $39M | 0.9% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 284,100 | $39M | 0.9% | 2026-Q2 |
| Bank of New York Mellon Corp trimmed | 283,980 | $39M | 0.9% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 253,640 | $35M | 0.8% | 2026-Q2 |
| UBS Group AG added | 244,220 | $34M | 0.7% | 2026-Q2 |
| CDAM (UK) Ltd trimmed | 219,862 | $30M | 0.7% | 2026-Q2 |
| ENVESTNET ASSET MANAGEMENT INC added | 213,213 | $29M | 0.6% | 2026-Q2 |
| Retirement Systems of Alabama trimmed | 174,089 | $24M | 0.5% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ trimmed | 158,937 | $22M | 0.5% | 2026-Q2 |
| PRINCIPAL FINANCIAL GROUP INC added | 148,346 | $20M | 0.4% | 2026-Q2 |
| WELLINGTON MANAGEMENT GROUP LLP new | 141,444 | $19M | 0.4% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS trimmed | 137,450 | $19M | 0.4% | 2026-Q2 |
| Jupiter Topco LLC new | 134,922 | $19M | 0.4% | 2026-Q2 |
| SYSTEMATIC FINANCIAL MANAGEMENT LP added | 126,828 | $17M | 0.4% | 2026-Q2 |
| Russell Investments Group, Ltd. added | 124,779 | $16M | 0.4% | 2026-Q2 |
| Fisher Asset Management, LLC trimmed | 114,929 | $16M | 0.3% | 2026-Q2 |
| Nuveen, LLC added | 112,516 | $15M | 0.3% | 2026-Q2 |
| Tributary Capital Management, LLC added | 112,278 | $15M | 0.3% | 2026-Q2 |
| Vontobel Holding Ltd. added | 107,542 | $15M | 0.3% | 2026-Q2 |
| RHUMBLINE ADVISERS added | 106,980 | $15M | 0.3% | 2026-Q2 |
| CULLINAN ASSOCIATES INC | 102,800 | $14M | 0.3% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. added | 100,557 | $9M | 0.2% | 2026-Q2 |
| Vident Advisory, LLC added | 98,934 | $14M | 0.3% | 2026-Q2 |
| DEUTSCHE BANK AG\ trimmed | 92,118 | $13M | 0.3% | 2026-Q2 |
| WINMILL & CO. INC | 88,641 | $12M | 0.3% | 2026-Q2 |
| SCHRODER INVESTMENT MANAGEMENT GROUP added | 84,920 | $11M | 0.2% | 2026-Q2 |
| CITIGROUP INC added | 83,502 | $11M | 0.3% | 2026-Q2 |
| Creative Planning added | 82,808 | $11M | 0.2% | 2026-Q2 |
| California Public Employees Retirement System added | 81,973 | $11M | 0.2% | 2026-Q2 |
| FEDERATED HERMES, INC. trimmed | 79,056 | $11M | 0.2% | 2026-Q2 |
| Jump Financial, LLC added | 76,923 | $11M | 0.2% | 2026-Q2 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed | 75,577 | $10M | 0.2% | 2026-Q2 |
| Gotham Asset Management, LLC trimmed | 75,514 | $10M | 0.2% | 2026-Q2 |
| Swiss National Bank added | 71,600 | $10M | 0.2% | 2026-Q2 |
| VICTORY CAPITAL MANAGEMENT INC added | 71,406 | $10M | 0.2% | 2026-Q2 |
| Freestone Grove Partners LP added | 68,754 | $9M | 0.2% | 2026-Q2 |
| AMERICAN CENTURY COMPANIES INC trimmed | 67,466 | $9M | 0.2% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN added | 65,887 | $9M | 0.2% | 2026-Q2 |
| NORDEA INVESTMENT MANAGEMENT AB trimmed | 62,240 | $9M | 0.2% | 2026-Q2 |
| Quantinno Capital Management LP added | 60,042 | $8M | 0.2% | 2026-Q2 |
| Willis Investment Counsel added | 57,156 | $8M | 0.2% | 2026-Q2 |
| LPL Financial LLC added | 56,343 | $8M | 0.2% | 2026-Q2 |
| NORGES BANK trimmed | 53,317 | $7M | 0.2% | 2026-Q2 |
| Robeco Institutional Asset Management B.V. trimmed | 50,820 | $7M | 0.2% | 2026-Q2 |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. added | 50,294 | $7M | 0.2% | 2026-Q2 |
| LGT Fund Management Co Ltd. added | 48,100 | $7M | 0.1% | 2026-Q2 |
| RAYMOND JAMES FINANCIAL INC added | 47,864 | $7M | 0.1% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ trimmed | 47,705 | $7M | 0.1% | 2026-Q2 |
| HERALD INVESTMENT MANAGEMENT Ltd trimmed | 47,500 | $7M | 0.1% | 2026-Q2 |
| IQ EQ FUND MANAGEMENT (IRELAND) Ltd added | 47,480 | $7M | 0.1% | 2026-Q2 |
| NICHOLAS COMPANY, INC. | 47,326 | $7M | 0.1% | 2026-Q2 |
| Corient Private Wealth LP added | 45,569 | $6M | 0.1% | 2026-Q2 |
| SEI INVESTMENTS CO trimmed | 44,034 | $6M | 0.1% | 2026-Q2 |
| FRANKLIN RESOURCES INC added | 43,255 | $6M | 0.1% | 2026-Q2 |
| Park State Asset Management trimmed | 43,215 | $6M | 0.1% | 2026-Q2 |
| AMERIPRISE FINANCIAL INC trimmed | 43,129 | $6M | 0.1% | 2026-Q2 |
| Taylor Hoffman Capital Management LLC added | 42,237 | $6M | 0.1% | 2026-Q2 |
| Universal- Beteiligungs- und Servicegesellschaft mbH added | 41,607 | $6M | 0.1% | 2026-Q2 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 41,107 | $6M | 0.1% | 2026-Q2 |
| THIRD AVENUE MANAGEMENT LLC | 39,120 | $5M | 0.1% | 2026-Q2 |
| MetLife Investment Management, LLC added | 37,565 | $5M | 0.1% | 2026-Q2 |
| Cresset Asset Management, LLC added | 36,415 | $5M | 0.1% | 2026-Q2 |
| Caisse de depot et placement du Quebec added | 36,279 | $5M | 0.1% | 2026-Q2 |
| VANGUARD ASSET MANAGEMENT, Ltd added | 35,899 | $5M | 0.1% | 2026-Q2 |
| Holocene Advisors, LP new | 35,038 | $5M | 0.1% | 2026-Q2 |
| Alyeska Investment Group, L.P. trimmed | 33,624 | $5M | 0.1% | 2026-Q2 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE trimmed | 33,435 | $5M | 0.1% | 2026-Q2 |
| SEGALL BRYANT & HAMILL, LLC trimmed | 32,904 | $5M | 0.1% | 2026-Q2 |
| BARCLAYS PLC trimmed | 32,810 | $5M | 0.1% | 2026-Q2 |
| Heron Bay Capital Management new | 32,006 | $4M | 0.1% | 2026-Q2 |
| BW Gestao de Investimentos Ltda. added | 30,628 | $4M | 0.1% | 2026-Q2 |
| Tandem Investment Advisors, Inc. trimmed | 29,188 | $4M | 0.1% | 2026-Q2 |
| Numerai GP LLC trimmed | 27,685 | $4M | 0.1% | 2026-Q2 |
| Van Hulzen Asset Management, LLC added | 27,342 | $4M | 0.1% | 2026-Q2 |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.