Qualys, Inc.
MX ˙ BMV ˙ US74758T3032
SecurityMX:QLYS / Qualys, Inc.
InstitutionAsset Management One Co., Ltd.
Latest Disclosed Ownership45,262 shares
Latest Disclosed Value $ 3,976,267
Asset Management One Co., Ltd. reports 3.17% increase in ownership of QLYS / Qualys, Inc.

On May 8, 2026 - Asset Management One Co., Ltd. filed a 13F-HR form disclosing ownership of 45,262 shares of Qualys, Inc. (MX:QLYS) valued at $3,976,267 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 27, 2026 disclosing 43,873 shares of Qualys, Inc.. This represents a change in shares of 3.17% 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.

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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)
2026-05-08 2026-03-31 13F QUALYS COM 74758T303 45,262 1,389 3.17 3,976 -34.01 0.0117
2026-01-27 2025-12-31 13F QUALYS COM 74758T303 43,873 -1,339 -2.96 6,026 0.72 0.0168
2025-10-22 2025-09-30 13F QUALYS COM 74758T303 45,212 0 0.00 5,983 -7.39 0.0173
2025-07-31 2025-06-30 13F QUALYS COM 74758T303 45,212 0 0.00 6,459 13.46 0.0203
2025-04-23 2025-03-31 13F QUALYS COM 74758T303 45,212 1,983 4.59 5,694 -5.81 0.0197
2025-01-30 2024-12-31 13F QUALYS COM 74758T303 43,229 -1,709 -3.80 6,045 4.71 0.0208
2024-10-30 2024-09-30 13F QUALYS COM 74758T303 44,938 664 1.50 5,773 -8.57 0.0205
2024-07-18 2024-06-30 13F QUALYS COM 74758T303 44,274 285 0.65 6,313 -13.99 0.0242
2024-05-02 2024-03-31 13F QUALYS COM 74758T303 43,989 -3,602 -7.57 7,340 -22.21 0.0283
2024-01-24 2023-12-31 13F QUALYS COM 74758T303 47,591 -334 -0.70 9,437 29.08 0.0380
2023-10-19 2023-09-30 13F QUALYS COM 74758T303 47,925 -10,402 -17.83 7,311 -2.97 0.0325
2023-07-31 2023-06-30 13F QUALYS COM 74758T303 58,327 -50 -0.09 7,534 -0.74 0.0319
2023-04-25 2023-03-31 13F QUALYS COM 74758T303 58,377 -2,078 -3.44 7,590 11.37 0.0344
2023-02-06 2022-12-31 13F QUALYS COM 74758T303 60,455 -742 -1.21 6,815 -20.11 0.0332
2022-11-04 2022-09-30 13F QUALYS COM 74758T303 61,197 -2,478 -3.89 8,530 6.21 0.0434
2022-07-29 2022-06-30 13F QUALYS COM 74758T303 63,675 492 0.78 8,031 -10.74 0.0377
2022-05-13 2022-03-31 13F QUALYS COM 74758T303 63,183 6,858 12.18 8,997 13.31 0.0351
2022-02-09 2021-12-31 13F QUALYS COM 74758T303 56,325 4,643 8.98 7,940 38.06 0.0277
2021-11-02 2021-09-30 13F QUALYS COM 74758T303 51,682 8,132 18.67 5,751 31.15 0.0220
2021-08-03 2021-06-30 13F QUALYS COM 74758T303 43,550 10,377 31.28 4,385 26.19 0.0163
2021-05-14 2021-03-31 13F QUALYS COM 74758T303 33,173 2,817 9.28 3,475 -3.58 0.0138
2021-02-12 2020-12-31 13F QUALYS COM 74758T303 30,356 4,324 16.61 3,604 41.28 0.0148
2020-11-13 2020-09-30 13F QUALYS COM 74758T303 26,032 8,465 48.19 2,551 39.63 0.0117
2020-08-14 2020-06-30 13F QUALYS COM 74758T303 17,567 2,589 17.29 1,827 40.21 0.0090
2020-05-14 2020-03-31 13F QUALYS COM 74758T303 14,978 2,950 24.53 1,303 29.91 0.0076
2020-02-14 2019-12-31 13F QUALYS COM 74758T303 12,028 -2,952 -19.71 1,003 -11.40 0.0045
2019-11-14 2019-09-30 13F QUALYS COM 74758T303 14,980 0 0.00 1,132 -13.19 0.0055
2019-08-14 2019-06-30 13F QUALYS COM 74758T303 14,980 480 3.31 1,304 8.67 0.0064
2019-05-15 2019-03-31 13F QUALYS COM 74758T303 14,500 0 0.00 1,200 10.70 0.0065
2019-02-13 2018-12-31 13F QUALYS COM 74758T303 14,500 3,970 37.70 1,084 15.57 0.0026
2018-11-14 2018-09-30 13F QUALYS COM 74758T303 10,530 4,150 65.05 938 74.35 0.0019
2018-08-14 2018-06-30 13F QUALYS COM 74758T303 6,380 -1,730 -21.33 538 -8.81 0.0012
2018-05-14 2018-03-31 13F QUALYS COM 74758T303 8,110 1,980 32.30 590 62.09 0.0013
2018-02-14 2017-12-31 13F QUALYS COM 74758T303 6,130 1,100 21.87 364 39.46 0.0008
2017-11-14 2017-09-30 13F QUALYS COM 74758T303 5,030 150 3.07 261 31.16 0.0006
2017-08-14 2017-06-30 13F QUALYS COM 74758T303 4,880 320 7.02 199 15.03 0.0005
2017-05-11 2017-03-31 13F QUALYS COM 74758T303 4,560 0 0.00 173 20.14 0.0005
2017-05-02 2016-12-31 13F/A-1 QUALYS COM 74758T303 4,560 932 25.69 144 5.88 0.0004
2017-02-13 2016-12-31 13F QUALYS COM 74758T303 4,560 144
2016-11-07 2016-09-30 13F QUALYS COM 74758T303 3,628 3,628 136 0.0020
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.