0001209191-18-001065.txt : 20180103 0001209191-18-001065.hdr.sgml : 20180103 20180103170751 ACCESSION NUMBER: 0001209191-18-001065 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20180102 FILED AS OF DATE: 20180103 DATE AS OF CHANGE: 20180103 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: BURNS MIKE CENTRAL INDEX KEY: 0001409173 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-35338 FILM NUMBER: 18506531 MAIL ADDRESS: STREET 1: VOLTERRA SEMICONDUCTOR STREET 2: 3839 SPINNAKER CT CITY: FREMONT STATE: CA ZIP: 94538 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: IMPERVA INC CENTRAL INDEX KEY: 0001364962 STANDARD INDUSTRIAL CLASSIFICATION: SERVICES-PREPACKAGED SOFTWARE [7372] IRS NUMBER: 030460133 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 3400 BRIDGE PARKWAY CITY: REDWOOD SHORES STATE: CA ZIP: 94065 BUSINESS PHONE: 650-345-9000 MAIL ADDRESS: STREET 1: 3400 BRIDGE PARKWAY CITY: REDWOOD SHORES STATE: CA ZIP: 94065 4 1 doc4.xml FORM 4 SUBMISSION X0306 4 2018-01-02 0 0001364962 IMPERVA INC IMPV 0001409173 BURNS MIKE C/O IMPERVA, INC. 3400 BRIDGE PARKWAY REDWOOD SHORES CA 94065 0 1 0 0 CFO and Treasurer Restricted Stock Units 2018-01-02 4 A 0 48800 0.00 A 2028-01-01 Common Stock 48800 48800 D Each restricted stock unit represents a contingent right to receive one share of common stock of the Issuer upon vesting. The restricted stock units vest as follows: 25% of the underlying shares vest one year following the vesting commencement date of February 15, 2018, with the remaining 75% vesting in equal quarterly installments over the next three years. The restricted stock units are subject to accelerated vesting in the event of a termination of employment under certain circumstances, including a termination following a change in control of the Issuer. The Issuer has up to 30 days following vesting to settle. The actual expiration date will be immediately following settlement. /s/ Shulamite White, Attorney-in-Fact 2018-01-03