0001562180-17-003246.txt : 20171011 0001562180-17-003246.hdr.sgml : 20171011 20171011174803 ACCESSION NUMBER: 0001562180-17-003246 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20171009 FILED AS OF DATE: 20171011 DATE AS OF CHANGE: 20171011 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: OBRIEN WILLIAM K CENTRAL INDEX KEY: 0001187425 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-23599 FILM NUMBER: 171133283 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: MERCURY SYSTEMS INC CENTRAL INDEX KEY: 0001049521 STANDARD INDUSTRIAL CLASSIFICATION: ELECTRONIC COMPONENTS & ACCESSORIES [3670] IRS NUMBER: 042741391 STATE OF INCORPORATION: MA FISCAL YEAR END: 0630 BUSINESS ADDRESS: STREET 1: 50 MINUTEMAN ROAD CITY: ANDOVER STATE: MA ZIP: 01810 BUSINESS PHONE: 9782561300 MAIL ADDRESS: STREET 1: 50 MINUTEMAN ROAD CITY: ANDOVER STATE: MA ZIP: 01810 FORMER COMPANY: FORMER CONFORMED NAME: MERCURY COMPUTER SYSTEMS INC DATE OF NAME CHANGE: 19971112 4 1 primarydocument.xml PRIMARY DOCUMENT X0306 4 2017-10-09 false 0001049521 MERCURY SYSTEMS INC MRCY 0001187425 OBRIEN WILLIAM K 50 MINUTEMAN ROAD ANDOVER MA 01810 true false false false Common Stock 2017-10-09 4 M false 8000.00 14.12 A 89778.00 D Common Stock 2017-10-09 4 F false 2147.00 52.63 D 87631.00 D Stock Option (Right to Buy) 14.12 2017-10-09 4 M false 8000.00 0.00 D 2011-10-21 2017-10-21 Common Stock 8000.00 0.00 D /s/ Gerald M. Haines II, Attorney-in-Fact 2017-10-11