Who owns QUALYS, INC.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of QLYS from SEC Form 13F filings across 434 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 434 institutions disclosed 36.9M shares of QUALYS, INC. worth $5.06B — about 105.3% of shares outstanding; the largest disclosed holder is BlackRock, Inc.. Source: SEC Form 13F filings, parsed by EvidInvest.
434
13F holders
$5.06B
value, 2026 filers
105.3%
of shares outstanding (36.9M sh)
97
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of QLYS's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 5.8M | $792.3M | 0.0% | 16.5% | +7.5% |
| 2 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2.7M | $370.7M | 0.0% | 7.7% | +6.3% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 1.6M | $218.7M | 0.0% | 4.5% | +0.4% |
| 4 | STATE STREET CORP | 1.5M | $200.2M | 0.0% | 4.2% | +4.9% |
| 5 | Legal & General Group Plc | 1.4M | $197.6M | 0.0% | 4.1% | +39.6% |
| 6 | GEODE CAPITAL MANAGEMENT, LLC | 1.4M | $193.8M | 0.0% | 4% | +6.7% |
| 7 | AQR CAPITAL MANAGEMENT LLC | 1.4M | $190.6M | 0.1% | 4% | +34.3% |
| 8 | FIRST TRUST ADVISORS LP | 1.1M | $155.5M | 0.1% | 3.2% | +13.5% |
| 9 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 985,345 | $135.5M | 0.1% | 2.8% | +18.3% |
| 10 | Boston Trust Walden Corp | 984,889 | $135.4M | 1.0% | 2.8% | -2.5% |
| 11 | Penserra Capital Management LLC | 780,069 | $107.3M | 0.8% | 2.2% | +6.5% |
| 12 | MILLENNIUM MANAGEMENT LLC | 762,709 | $104.9M | 0.0% | 2.2% | +224.0% |
| 13 | DIMENSIONAL FUND ADVISORS LP | 719,248 | $98.9M | 0.0% | 2.1% | -5.7% |
| 14 | MORGAN STANLEY | 620,705 | $85.3M | 0.0% | 1.8% | -4.0% |
| 15 | MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 553,737 | $76.1M | 0.1% | 1.6% | +26.3% |
| 16 | RWA WEALTH PARTNERS, LLC | 548,756 | $75.4M | 0.7% | 1.6% | 0.0% |
| 17 | Clark Capital Management Group, Inc. | 543,703 | $74.8M | 0.4% | 1.6% | +42.9% |
| 18 | ACADIAN ASSET MANAGEMENT LLC | 542,279 | $74.5M | 0.1% | 1.5% | +197.8% |
| 19 | Portolan Capital Management, LLC | 529,807 | $72.8M | 2.7% | 1.5% | +121.7% |
| 20 | VOYA INVESTMENT MANAGEMENT LLC | 521,489 | $71.7M | 0.1% | 1.5% | +75.4% |
| 21 | NORTHERN TRUST CORP | 517,147 | $71.1M | 0.0% | 1.5% | +1.3% |
| 22 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 514,677 | $70.8M | 0.0% | 1.5% | +2.4% |
| 23 | LONDON CO OF VIRGINIA | 428,317 | $58.9M | 0.3% | 1.2% | -8.2% |
| 24 | Invesco Ltd. | 423,064 | $58.2M | 0.0% | 1.2% | +11.1% |
| 25 | GOLDMAN SACHS GROUP INC | 397,028 | $54.6M | 0.0% | 1.1% | +22.5% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.