0001209191-18-054611.txt : 20181009 0001209191-18-054611.hdr.sgml : 20181009 20181009202322 ACCESSION NUMBER: 0001209191-18-054611 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20181004 FILED AS OF DATE: 20181009 DATE AS OF CHANGE: 20181009 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: AIN ARON J CENTRAL INDEX KEY: 0001193623 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-37637 FILM NUMBER: 181114738 MAIL ADDRESS: STREET 1: C/O MIMECAST LIMITED, MIMECAST NA, INC. STREET 2: 191 SPRING STREET CITY: LEXINGTON STATE: MA ZIP: 02421 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Mimecast Ltd CENTRAL INDEX KEY: 0001644675 STANDARD INDUSTRIAL CLASSIFICATION: SERVICES-PREPACKAGED SOFTWARE [7372] IRS NUMBER: 000000000 STATE OF INCORPORATION: X0 FISCAL YEAR END: 0331 BUSINESS ADDRESS: STREET 1: ONE ROPEMAKER STREET CITY: LONDON STATE: X0 ZIP: EC2Y 9AW BUSINESS PHONE: 44(0)2078478700 MAIL ADDRESS: STREET 1: ONE ROPEMAKER STREET CITY: LONDON STATE: X0 ZIP: EC2Y 9AW 4 1 doc4.xml FORM 4 SUBMISSION X0306 4 2018-10-04 0 0001644675 Mimecast Ltd MIME 0001193623 AIN ARON J C/O MIMECAST NORTH AMERICA, INC. 191 SPRING STREET LEXINGTON MA 02421 1 0 0 0 Restricted Share Units 2018-10-04 4 A 0 4221 0.00 A 4221 D Ordinary Shares 3086 D Restricted Share Units 6173 D Each restricted share unit represents a contingent right to receive one share of the Issuer's ordinary shares. These restricted share units were granted on October 4, 2018, and vest in full on the one year anniversary of the date of grant, provided that the Reporting Person remains a director of the Issuer on such vesting date. These restricted share units (9,259 units) were granted on April 3, 2017, and 3,086 units vested on April 3, 2018, 3,086 units vest on April 3, 2019, and 3,087 units vest on April 3, 2020, provided that the Reporting Person remains a director of the Issuer on such vesting date. Exhibit 24 Power of Attorney (incorporated by reference to Power of Attorney filed as Exhibit 24 to Form 3 filed by the Reporting Person on April 2, 2018). /s/ Robert P. Nault, Attorney-in-Fact 2018-10-09