Qualys, Inc.
US ˙ NasdaqGS ˙ US74758T3032

SecurityQLYS / Qualys, Inc.
InstitutionShell Asset Management Co
Latest Disclosed Ownership553 shares
Latest Disclosed Value $ 73
Shell Asset Management Co reports 60.61% decrease in ownership of QLYS / Qualys, Inc.

On November 7, 2025 - Shell Asset Management Co filed a 13F-HR form disclosing ownership of 553 shares of Qualys, Inc. (US:QLYS) valued at $73,178 USD as of September 30, 2025. The entity filed a previous 13F-HR on July 23, 2025 disclosing 1,404 shares of Qualys, Inc.. The current value of the position is $61,673 USD.

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)
2025-11-07 2025-09-30 13F QUALYS COM 74758T303 553 -851 -60.61 0 0.0073
2025-07-23 2025-06-30 13F QUALYS COM 74758T303 1,404 -298 -17.51 0 0.0069
2025-05-14 2025-03-31 13F QUALYS COM 74758T303 1,702 -73 -4.11 0 0.0102
2025-02-14 2024-12-31 13F QUALYS COM 74758T303 1,775 0 0.00 0 0.0109
2024-11-07 2024-09-30 13F QUALYS COM 74758T303 1,775 -103 -5.48 0 0.0100
2024-07-25 2024-03-31 13F QUALYS COM 74758T303 1,878 -191 -9.23 0 0.0122
2024-02-14 2023-12-31 13F QUALYS COM 74758T303 2,069 -624 -23.17 0 0.0188
2023-11-08 2023-09-30 13F QUALYS COM 74758T303 2,693 -47 -1.72 0 0.0170
2023-07-28 2023-06-30 13F QUALYS COM 74758T303 2,740 -16 -0.58 0 0.0140
2023-05-15 2023-03-31 13F QUALYS COM 74758T303 2,756 -10 -0.36 0 0.0149
2023-02-07 2022-12-31 13F QUALYS COM 74758T303 2,766 -562 -16.89 0 -100.00 0.0136
2022-11-14 2022-09-30 13F QUALYS COM 74758T303 3,328 -873 -20.78 464 -12.45 0.0181
2022-08-09 2022-06-30 13F QUALYS COM 74758T303 4,201 908 27.57 530 13.01 0.0157
2022-05-04 2022-03-31 13F QUALYS COM 74758T303 3,293 -487 -12.88 469 -9.63 0.0111
2022-02-09 2021-12-31 13F QUALYS COM 74758T303 3,780 12 0.32 519 23.87 0.0106
2021-11-04 2021-09-30 13F QUALYS COM 74758T303 3,768 1,000 36.13 419 50.18 0.0094
2021-08-12 2021-06-30 13F QUALYS COM 74758T303 2,768 140 5.33 279 1.45 0.0054
2021-05-10 2021-03-31 13F QUALYS COM 74758T303 2,628 -20 -0.76 275 -14.86 0.0055
2021-02-16 2020-12-31 13F QUALYS COM 74758T303 2,648 0 0.00 323 24.23 0.0067
2020-11-13 2020-09-30 13F QUALYS COM 74758T303 2,648 0 0.00 260 -5.45 0.0060
2020-08-10 2020-06-30 13F QUALYS COM 74758T303 2,648 15 0.57 275 20.09 0.0069
2020-05-11 2020-03-31 13F QUALYS COM 74758T303 2,633 -38 -1.42 229 2.69 0.0064
2020-02-13 2019-12-31 13F QUALYS COM 74758T303 2,671 -21 -0.78 223 9.85 0.0048
2019-11-12 2019-09-30 13F QUALYS COM 74758T303 2,692 -13,995 -83.87 203 -86.03 0.0046
2019-08-12 2019-06-30 13F QUALYS COM 74758T303 16,687 -379 -2.22 1,453 2.90 0.0322
2019-05-09 2019-03-31 13F QUALYS COM 74758T303 17,066 -7,770 -31.29 1,412 -23.92 0.0311
2019-02-13 2018-12-31 13F QUALYS COM 74758T303 24,836 -2,100 -7.80 1,856 -22.67 0.0463
2018-11-13 2018-09-30 13F QUALYS COM 74758T303 26,936 -726 -2.62 2,400 2.92 0.0474
2018-08-10 2018-06-30 13F QUALYS COM 74758T303 27,662 -1,476 -5.07 2,332 10.00 0.0478
2018-05-14 2018-03-31 13F QUALYS COM 74758T303 29,138 0 0.00 2,120 22.61 0.0422
2018-02-09 2017-12-31 13F QUALYS COM 74758T303 29,138 0 0.00 1,729 14.58 0.0343
2017-10-20 2017-09-30 13F/A-1 QUALYS COM 74758T303 29,138 -700 -2.35 1,509 23.99 0.0336
2017-07-26 2017-06-30 13F QUALYS COM 74758T303 29,838 0 0.00 1,217 7.60 0.0302
2017-04-26 2017-03-31 13F QUALYS COM 74758T303 29,838 -2,089 -6.54 1,131 11.98 0.0289
2017-01-10 2016-12-31 13F QUALYS COM 74758T303 31,927 31,927 1,010 0.0273
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.