| SC 13G/A | 2024-02-13 | VANGUARD GROUP INC | QUALYS, INC. | 3,756,297 | 10.2% | EDGAR |
| SC 13G/A | 2024-02-12 | Neuberger Berman Group LLC | QUALYS, INC. | 1,938,573 | 5.3% | EDGAR |
| SC 13G/A | 2024-01-22 | BlackRock Inc. | QUALYS, INC. | 5,438,039 | 14.8% | EDGAR |
| SC 13G/A | 2023-07-10 | VANGUARD GROUP INC | QUALYS, INC. | 3,694,099 | 10.0% | EDGAR |
| SC 13G/A | 2023-02-10 | Neuberger Berman Group LLC | QUALYS, INC. | 2,047,284 | 5.4% | EDGAR |
| SC 13G/A | 2023-02-09 | VANGUARD GROUP INC | QUALYS, INC. | 3,486,717 | 9.2% | EDGAR |
| SC 13G/A | 2023-01-23 | BlackRock Inc. | QUALYS, INC. | 4,613,510 | 12.1% | EDGAR |
| SC 13G/A | 2023-01-19 | Philippe Courtot Family Trust | QUALYS, INC. | 535 | 1.4% | EDGAR |
| SC 13G/A | 2022-02-14 | Neuberger Berman Group LLC | QUALYS, INC. | 2,245,048 | 5.8% | EDGAR |
| SC 13G/A | 2022-02-10 | VANGUARD GROUP INC | QUALYS, INC. | 3,379,253 | 8.7% | EDGAR |
| SC 13G | 2022-02-08 | Philippe Courtot Family Trust | QUALYS, INC. | 3,539,054 | 9.1% | EDGAR |
| SC 13G/A | 2022-01-28 | BlackRock Inc. | QUALYS, INC. | 3,988,849 | 10.3% | EDGAR |
| SC 13G/A | 2021-02-12 | COURTOT PHILIPPE F | QUALYS, INC. | 5,175,766 | 13.2% | EDGAR |
| SC 13G/A | 2021-02-11 | Neuberger Berman Group LLC | QUALYS, INC. | 2,450,854 | 6.3% | EDGAR |
| SC 13G/A | 2021-02-10 | VANGUARD GROUP INC | QUALYS, INC. | 3,293,393 | 8.4% | EDGAR |
| SC 13G/A | 2021-01-27 | BlackRock Inc. | QUALYS, INC. | 4,628,732 | 11.9% | EDGAR |
| SC 13G/A | 2020-02-13 | Neuberger Berman Group LLC | QUALYS, INC. | 2,519,647 | 6.5% | EDGAR |
| SC 13G/A | 2020-02-12 | VANGUARD GROUP INC | QUALYS, INC. | 3,530,272 | 9.1% | EDGAR |
| SC 13G/A | 2020-02-11 | COURTOT PHILIPPE F | QUALYS, INC. | 5,862,459 | 14.8% | EDGAR |
| SC 13G/A | 2020-02-04 | BlackRock Inc. | QUALYS, INC. | 5,151,667 | 13.3% | EDGAR |