<SEC-DOCUMENT>0001049521-21-000038-index.html : 20210914
<SEC-HEADER>0001049521-21-000038.hdr.sgml : 20210914
<ACCEPTANCE-DATETIME>20210914160433
ACCESSION NUMBER:		0001049521-21-000038
CONFORMED SUBMISSION TYPE:	DEFR14A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20210914
DATE AS OF CHANGE:		20210914

FILER:

	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:			0703

	FILING VALUES:
		FORM TYPE:		DEFR14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-23599
		FILM NUMBER:		211252440

	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
</SEC-HEADER>
<DOCUMENT>
<TYPE>DEFR14A
<SEQUENCE>1
<FILENAME>a2021revisedproxystatement.htm
<DESCRIPTION>DEFR14A
<TEXT>
Document 1 - file: a2021revisedproxystatement.htm

</DOCUMENT>
</SEC-DOCUMENT>