Qualys, Inc.
US ˙ NasdaqGS ˙ US74758T3032

SecurityQLYS / Qualys, Inc.
InstitutionSignaturefd, Llc
Latest Disclosed Ownership539 shares
Latest Disclosed Value $ 47,351
Signaturefd, Llc reports 41.47% increase in ownership of QLYS / Qualys, Inc.

On April 7, 2026 - Signaturefd, Llc filed a 13F-HR form disclosing ownership of 539 shares of Qualys, Inc. (US:QLYS) valued at $47,351 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 20, 2026 disclosing 381 shares of Qualys, Inc.. This represents a change in shares of 41.47% during the quarter. The current value of the position is $59,236 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.

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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)
2026-04-07 2026-03-31 13F QUALYS COM 74758T303 539 158 41.47 47 -6.00 0.0007
2026-01-20 2025-12-31 13F QUALYS COM 74758T303 381 57 17.59 51 19.05 0.0008
2025-10-21 2025-09-30 13F QUALYS COM 74758T303 324 -23 -6.63 43 -14.29 0.0007
2025-07-16 2025-06-30 13F QUALYS COM 74758T303 347 -254 -42.26 50 -34.67 0.0008
2025-05-02 2025-03-31 13F QUALYS COM 74758T303 601 295 96.41 76 78.57 0.0014
2025-02-10 2024-12-31 13F QUALYS COM 74758T303 306 12 4.08 43 13.51 0.0008
2024-10-21 2024-09-30 13F QUALYS COM 74758T303 294 39 15.29 38 2.78 0.0007
2024-07-29 2024-06-30 13F QUALYS COM 74758T303 255 7 2.82 36 -12.20 0.0007
2024-05-03 2024-03-31 13F QUALYS COM 74758T303 248 -43 -14.78 41 -28.07 0.0009
2024-02-01 2023-12-31 13F QUALYS COM 74758T303 291 58 24.89 57 62.86 0.0013
2023-11-03 2023-09-30 13F QUALYS COM 74758T303 233 1 0.43 36 20.69 0.0009
2023-08-01 2023-06-30 13F QUALYS COM 74758T303 232 -1,197 -83.76 30 -84.32 0.0008
2023-04-28 2023-03-31 13F QUALYS COM 74758T303 1,429 207 16.94 186 35.04 0.0051
2023-01-30 2022-12-31 13F QUALYS COM 74758T303 1,222 -42 -3.32 137 -22.16 0.0040
2022-11-08 2022-09-30 13F QUALYS COM 74758T303 1,264 -119 -8.60 176 1.15 0.0060
2022-08-10 2022-06-30 13F QUALYS COM 74758T303 1,383 183 15.25 174 1.75 0.0059
2022-05-02 2022-03-31 13F QUALYS COM 74758T303 1,200 122 11.32 171 15.54 0.0051
2022-01-25 2021-12-31 13F QUALYS COM 74758T303 1,078 -2 -0.19 148 23.33 0.0046
2021-10-28 2021-09-30 13F QUALYS COM 74758T303 1,080 -21 -1.91 120 8.11 0.0041
2021-07-26 2021-06-30 13F QUALYS COM 74758T303 1,101 -13 -1.17 111 -5.13 0.0044
2021-04-30 2021-03-31 13F QUALYS COM 74758T303 1,114 -3 -0.27 117 -13.97 0.0052
2021-02-11 2020-12-31 13F QUALYS COM 74758T303 1,117 20 1.82 136 25.93 0.0064
2020-11-03 2020-09-30 13F QUALYS COM 74758T303 1,097 1,050 2,234.04 108 2,060.00 0.0058
2020-07-30 2020-06-30 13F QUALYS COM 74758T303 47 34 261.54 5 400.00 0.0003
2020-04-23 2020-03-31 13F QUALYS COM 74758T303 13 13 1 0.0001
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.