Qualys Inc - US (QLYS): Institutional Ownership
Hedge funds and institutional managers reporting a position in QLYS · Information Technology. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.
Reported Holders
18
13F filers
Aggregate Value
$141.5M
Across holders
Last Price
$123.27
2026-06-26
Sector
Information Technology
GICS
Holder activity5 new8 added5 reduced
| Manager⇅ | Type⇅ | Shares⇅ | Market Value▼ | % of Total⇅ | % of Portfolio⇅ | Action⇅ | QoQ Change⇅ | Quarter⇅ |
|---|---|---|---|---|---|---|---|---|
| RENAISSANCE TECHNOLOGIES LLC CIK 0001037389 | Hedge Fund | 498K | $43.7M | 30.9% | 0.1% | Added | +$1.5M | Q1 2026 |
| TUDOR INVESTMENT CORP ET AL CIK 0000923093 | Hedge Fund | 251K | $22.0M | 15.6% | 0.0% | Added | +$2.9M | Q1 2026 |
| Fundsmith LLP CIK 0001569205 | Institutional Manager | 226K | $19.9M | 14.0% | 0.2% | Reduced | $-37.0M | Q1 2026 |
| TWO SIGMA INVESTMENTS, LP CIK 0001179392 | Hedge Fund | 155K | $13.6M | 9.6% | 0.0% | Reduced | $-4.5M | Q1 2026 |
| Fisher Asset Management, LLC CIK 0000850529 | Institutional Manager | 116K | $10.2M | 7.2% | 0.0% | Reduced | $-225K | Q1 2026 |
| Gotham Asset Management, LLC CIK 0001510387 | Hedge Fund | 111K | $9.7M | 6.9% | 0.0% | Added | +$2.9M | Q1 2026 |
| Man Group plc CIK 0001637460 | Hedge Fund | 62K | $5.4M | 3.8% | 0.0% | Added | +$4.6M | Q1 2026 |
| Qube Research & Technologies Ltd CIK 0001729829 | Hedge Fund | 55K | $4.8M | 3.4% | 0.0% | Added | +$3.4M | Q1 2026 |
| Verition Fund Management LLC CIK 0001454027 | Hedge Fund | 26K | $3.4M | 2.4% | 0.0% | New | — | Q4 2025 |
| CITADEL ADVISORS LLC CIK 0001423053 | Hedge Fund | 30K | $2.6M | 1.8% | 0.0% | Added | +$2.0M | Q1 2026 |
| MARSHALL WACE, LLP CIK 0001318757 | Hedge Fund | 16K | $1.4M | 1.0% | 0.0% | Added | +$1.2M | Q1 2026 |
| CAXTON ASSOCIATES LLP CIK 0002051323 | Hedge Fund | 15K | $1.3M | 0.9% | 0.0% | New | — | Q1 2026 |
| Brevan Howard Capital Management LP CIK 0001512857 | Hedge Fund | 13K | $1.1M | 0.8% | 0.0% | Added | +$438K | Q1 2026 |
| Bridgewater Associates, LP CIK 0001350694 | Hedge Fund | 10K | $898K | 0.6% | 0.0% | Reduced | $-1.2M | Q1 2026 |
| Schonfeld Strategic Advisors LLC CIK 0001665241 | Hedge Fund | 4K | $574K | 0.4% | 0.0% | New | — | Q3 2025 |
| BALYASNY ASSET MANAGEMENT LLC CIK 0001218710 | Hedge Fund | 3K | $403K | 0.3% | 0.0% | New | — | Q2 2025 |
| AQR CAPITAL MANAGEMENT LLC CIK 0001167557 | Hedge Fund | 3K | $277K | 0.2% | 0.0% | Reduced | $-54.8M | Q1 2026 |
| Walleye Capital LLC CIK 0001758720 | Hedge Fund | 18 | $2K | 0.0% | 0.0% | New | — | Q1 2026 |
Added
Hedge Fund
$43.7M· 30.9% of total· 0.1% port· 498K sh· +$1.5M QoQ· Q1 2026
Added
Hedge Fund
$22.0M· 15.6% of total· 0.0% port· 251K sh· +$2.9M QoQ· Q1 2026
Reduced
Institutional Manager
$19.9M· 14.0% of total· 0.2% port· 226K sh· $-37.0M QoQ· Q1 2026
Reduced
Hedge Fund
$13.6M· 9.6% of total· 0.0% port· 155K sh· $-4.5M QoQ· Q1 2026
Reduced
Institutional Manager
$10.2M· 7.2% of total· 0.0% port· 116K sh· $-225K QoQ· Q1 2026
Added
Hedge Fund
$9.7M· 6.9% of total· 0.0% port· 111K sh· +$2.9M QoQ· Q1 2026
Added
Hedge Fund
$5.4M· 3.8% of total· 0.0% port· 62K sh· +$4.6M QoQ· Q1 2026
Added
Hedge Fund
$4.8M· 3.4% of total· 0.0% port· 55K sh· +$3.4M QoQ· Q1 2026
New
Hedge Fund
$3.4M· 2.4% of total· 0.0% port· 26K sh· — QoQ· Q4 2025
Added
Hedge Fund
$2.6M· 1.8% of total· 0.0% port· 30K sh· +$2.0M QoQ· Q1 2026
Added
Hedge Fund
$1.4M· 1.0% of total· 0.0% port· 16K sh· +$1.2M QoQ· Q1 2026
New
Hedge Fund
$1.3M· 0.9% of total· 0.0% port· 15K sh· — QoQ· Q1 2026
Added
Hedge Fund
$1.1M· 0.8% of total· 0.0% port· 13K sh· +$438K QoQ· Q1 2026
Reduced
Hedge Fund
$898K· 0.6% of total· 0.0% port· 10K sh· $-1.2M QoQ· Q1 2026
New
Hedge Fund
$574K· 0.4% of total· 0.0% port· 4K sh· — QoQ· Q3 2025
New
Hedge Fund
$403K· 0.3% of total· 0.0% port· 3K sh· — QoQ· Q2 2025
Reduced
Hedge Fund
$277K· 0.2% of total· 0.0% port· 3K sh· $-54.8M QoQ· Q1 2026
New
Hedge Fund
$2K· 0.0% of total· 0.0% port· 18 sh· — QoQ· Q1 2026