주식회사 퀄리스
MX ˙ BMV ˙ US74758T3032
SecurityMX:QLYS / Qualys, Inc.
InstitutionXTX Topco Ltd
Latest Disclosed Ownership30,845 shares
Latest Disclosed Value $ 2,709,733
XTX Topco Ltd reports 312.31% increase in ownership of QLYS / Qualys, Inc.

On May 15, 2026 - XTX Topco Ltd filed a 13F-HR form disclosing ownership of 30,845 shares of Qualys, Inc. (MX:QLYS) valued at $2,709,733 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 7,481 shares of Qualys, Inc.. This represents a change in shares of 312.31% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F QUALYS COM 74758T303 30,845 23,364 312.31 2,710 172.54 0.0471
2026-02-17 2025-12-31 13F QUALYS COM 74758T303 7,481 7,481 994 0.0261
2025-11-14 2025-09-30 13F QUALYS COM 74758T303 0 -9,671 -100.00 0 -100.00
2025-08-12 2025-06-30 13F QUALYS COM 74758T303 9,671 4,613 91.20 1,382 117.14 0.0573
2025-05-08 2025-03-31 13F QUALYS COM 74758T303 5,058 5,058 637 0.0326
2024-11-14 2024-09-30 13F QUALYS COM 74758T303 0 -3,824 -100.00 0 -100.00
2024-08-12 2024-06-30 13F QUALYS COM 74758T303 3,824 1,065 38.60 545 18.48 0.0467
2024-05-13 2024-03-31 13F QUALYS COM 74758T303 2,759 2,759 460 0.0621
2024-02-13 2023-12-31 13F QUALYS COM 74758T303 0 -4,403 -100.00 0 -100.00
2023-11-13 2023-09-30 13F QUALYS COM 74758T303 4,403 1,857 72.94 672 104.57 0.1147
2023-08-14 2023-06-30 13F QUALYS COM 74758T303 2,546 2,546 329 0.0589
2023-05-12 2023-03-31 13F QUALYS COM 74758T303 0 -4,270 -100.00 0 -100.00
2023-02-14 2022-12-31 13F QUALYS COM 74758T303 4,270 2,068 93.91 479 56.03 0.1017
2022-11-14 2022-09-30 13F QUALYS COM 74758T303 2,202 2,202 307 0.0760
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.