QUALYS INC (QLYS) Institutional Ownership Changes & 13F Activity
QUALYS INC (QLYS). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Millennium Management Llc, Invesco Ltd., Legal & General Group Plc, Aqr Capital Management Llc, and Portolan Capital Management, Llc.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Envestnet Asset Management Inc | Buy | +5,539 | +2.7% | 213,213 | $29.31M | Q2 2026 | Sep 23, 2026 |
| Qrg Capital Management, Inc. | Sell | -936 | -36.4% | 1,632 | $224.25K | Q2 2026 | Sep 23, 2026 |
| State Street Corp | Buy | +67,438 | +4.9% | 1,456,158 | $200.21M | Q2 2026 | Sep 22, 2026 |
| Integrated Wealth Concepts Llc | Buy | +2,704 | — | 2,704 | $371.77K | Q2 2026 | Sep 09, 2026 |
| Manufacturers Life Insurance Company, The | Sell | -581 | -1.7% | 33,435 | $4.60M | Q2 2026 | Sep 09, 2026 |
| Parkside Financial Bank & Trust | Buy | +16 | +15.1% | 122 | $16.77K | Q2 2026 | Sep 04, 2026 |
| Citadel Advisors Llc | Buy | +174,609 | +85.8% | 378,139 | $51.99M | Q2 2026 | Sep 02, 2026 |
| Allianz Asset Management Gmbh | Buy | +21,240 | — | 21,240 | $2.92M | Q2 2026 | Sep 02, 2026 |
| Brown, Lisle/Cummings, Inc. | Sell | -4 | -2.7% | 145 | $19.94K | Q2 2026 | Sep 02, 2026 |
| Corient Private Wealth Llc | Buy | +20,175 | +79.6% | 45,513 | $6.26M | Q2 2026 | Aug 27, 2026 |
| California State Teachers Retirement System | Sell | -1,210 | -2.9% | 41,107 | $5.65M | Q2 2026 | Aug 24, 2026 |
| Assenagon Asset Management S.A. | Buy | +2,202 | +24.2% | 11,287 | $1.55M | Q2 2026 | Aug 21, 2026 |
| Mercer Global Advisors Inc | Sell | -1,119 | -13.4% | 7,231 | $994.18K | Q2 2026 | Aug 19, 2026 |
| Fulcrum Asset Management Llp | Buy | +165 | — | 165 | $21.17K | Q2 2026 | Aug 18, 2026 |
| Public Employees Retirement System Of Ohio | Sell | -30,771 | -98.8% | 372 | $51.15K | Q2 2026 | Aug 17, 2026 |
| Empowered Funds, Llc | Sell | -20,252 | -74.0% | 7,118 | $978.65K | Q2 2026 | Aug 17, 2026 |
| Jefferies Financial Group Inc. | Buy | +5,819 | +40.7% | 20,100 | $2.76M | Q2 2026 | Aug 17, 2026 |
| United Capital Financial Advisors, Llc | Buy | +2,575 | — | 2,575 | $354.04K | Q2 2026 | Aug 17, 2026 |
| Capstone Investment Advisors, Llc | Sell | -1,381 | -42.8% | 1,848 | $254.08K | Q2 2026 | Aug 17, 2026 |
| Transamerica Financial Advisors, Llc | Buy | +17 | +566.7% | 20 | $2.75K | Q2 2026 | Aug 17, 2026 |
| Millennium Management Llc | Buy | +527,327 | +224.0% | 762,709 | $104.86M | Q2 2026 | Aug 14, 2026 |
| Invesco Ltd. | Buy | +423,064 | — | 423,064 | $58.17M | Q2 2026 | Aug 14, 2026 |
| Legal & General Group Plc | Buy | +407,786 | +39.6% | 1,437,373 | $197.62M | Q2 2026 | Aug 14, 2026 |
| Aqr Capital Management Llc | Buy | +355,843 | +34.3% | 1,394,771 | $190.60M | Q2 2026 | Aug 14, 2026 |
| Portolan Capital Management, Llc | Buy | +290,779 | +121.7% | 529,807 | $72.84M | Q2 2026 | Aug 14, 2026 |
| Point72 Asset Management, L.P. | Buy | +285,895 | — | 285,895 | $39.31M | Q2 2026 | Aug 14, 2026 |
| Alyeska Investment Group, L.P. | Sell | -271,053 | -89.0% | 33,624 | $4.62M | Q2 2026 | Aug 14, 2026 |
| Tudor Investment Corp Et Al | Sell | -225,760 | -90.0% | 25,125 | $3.45M | Q2 2026 | Aug 14, 2026 |
| Trexquant Investment Lp | Sell | -149,162 | -95.6% | 6,859 | $943.04K | Q2 2026 | Aug 14, 2026 |
| Wellington Management Group Llp | Buy | +141,444 | — | 141,444 | $19.45M | Q2 2026 | Aug 14, 2026 |
Frequently asked questions about QLYS activity
Which institutional owners are buying QLYS?
Institutional owners buying QLYS include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in QLYS activity?
"Buy" means an investor increased their reported position in QLYS compared to the prior reporting period. This reflects growing exposure to QUALYS INC (QLYS) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in QLYS increasing?
Institutional interest in QLYS can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.
Related QLYS Institutional Insights
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