| Type | Filed | Filer | Subject | Shares Owned | Percent Owned | |
|---|---|---|---|---|---|---|
| SC 13G/A | 2019-02-14 | EMINENCE CAPITAL, LP | IMPERVA INC | 3,137,358 | 8.9% | EDGAR |
| SC 13G/A | 2019-02-12 | VANGUARD GROUP INC | IMPERVA INC | 3,086,207 | 8.7% | EDGAR |
| SC 13G/A | 2019-02-04 | BlackRock Inc. | IMPERVA INC | 2,434,982 | 6.9% | EDGAR |
| SC 13G | 2018-11-29 | Sand Grove Capital Management LLP | IMPERVA INC | 1,869,552 | 5.3% | EDGAR |
| SC 13D/A | 2018-08-13 | ELLIOTT ASSOCIATES, L.P. | IMPERVA INC | 534,471 | 1.5% | EDGAR |
| SC 13G/A | 2018-02-14 | EMINENCE CAPITAL, LP | IMPERVA INC | 2,885,315 | 8.5% | EDGAR |
| SC 13D/A | 2018-02-13 | ELLIOTT ASSOCIATES, L.P. | IMPERVA INC | 650,036 | 1.9% | EDGAR |
| SC 13G/A | 2018-02-09 | VANGUARD GROUP INC | IMPERVA INC | 2,646,883 | 7.8% | EDGAR |
| SC 13G/A | 2018-01-26 | KRAMER SHLOMO | IMPERVA INC | 0 | 0.0% | EDGAR |
| SC 13G/A | 2018-01-25 | BlackRock Inc. | IMPERVA INC | 2,696,809 | 7.9% | EDGAR |
| SC 13D/A | 2018-01-23 | ELLIOTT ASSOCIATES, L.P. | IMPERVA INC | 650,036 | 1.9% | EDGAR |
| SC 13D/A | 2017-09-12 | ELLIOTT ASSOCIATES, L.P. | IMPERVA INC | 719,724 | 2.1% | EDGAR |
| SC 13G/A | 2017-02-10 | VANGUARD GROUP INC | IMPERVA INC | 2,236,662 | 6.8% | EDGAR |
| SC 13G | 2017-02-10 | EMINENCE CAPITAL, LP | IMPERVA INC | 3,195,254 | 9.7% | EDGAR |
| SC 13G/A | 2017-02-01 | KRAMER SHLOMO | IMPERVA INC | 2,109,957 | 6.8% | EDGAR |
| SC 13G | 2017-01-30 | BlackRock Inc. | IMPERVA INC | 1,786,059 | 5.4% | EDGAR |
| SC 13G/A | 2016-11-10 | FMR LLC | IMPERVA INC | 1,063,619 | 3.3% | EDGAR |
| SC 13G/A | 2016-09-09 | BlackRock Inc. | IMPERVA INC | 1,588,266 | 4.9% | EDGAR |
| SC 13D/A | 2016-06-28 | ELLIOTT ASSOCIATES, L.P. | IMPERVA INC | 743,227 | 2.3% | EDGAR |
| SC 13D | 2016-06-20 | ELLIOTT ASSOCIATES, L.P. | IMPERVA INC | 726,002 | 2.3% | EDGAR |