<SEC-DOCUMENT>0001049521-19-000035-index.html : 20190830
<SEC-HEADER>0001049521-19-000035.hdr.sgml : 20190830
<ACCEPTANCE-DATETIME>20190830160228
ACCESSION NUMBER:		0001049521-19-000035
CONFORMED SUBMISSION TYPE:	DEF 14A
PUBLIC DOCUMENT COUNT:		24
CONFORMED PERIOD OF REPORT:	20191023
FILED AS OF DATE:		20190830
DATE AS OF CHANGE:		20190830
EFFECTIVENESS DATE:		20190830

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:			0626

	FILING VALUES:
		FORM TYPE:		DEF 14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-23599
		FILM NUMBER:		191069565

	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>DEF 14A
<SEQUENCE>1
<FILENAME>a2019proxystatement.htm
<DESCRIPTION>DEF 14A
<TEXT>
Document 1 - file: a2019proxystatement.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>barrynearhos.jpg
<TEXT>
Document 2 - file: barrynearhos.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>chriscambria.jpg
<TEXT>
Document 3 - file: chriscambria.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>chriscambriasignaturea01.jpg
<TEXT>
Document 4 - file: chriscambriasignaturea01.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>compproxygraphs001.jpg
<TEXT>
Document 5 - file: compproxygraphs001.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>didierthibaud.jpg
<TEXT>
Document 6 - file: didierthibaud.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>fy19annualreportproxycha001.jpg
<TEXT>
Document 7 - file: fy19annualreportproxycha001.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>jamesbass.jpg
<TEXT>
Document 8 - file: jamesbass.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>lisadisbrow.jpg
<TEXT>
Document 9 - file: lisadisbrow.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>markaslett.jpg
<TEXT>
Document 10 - file: markaslett.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>markaslettsignaturea02.jpg
<TEXT>
Document 11 - file: markaslettsignaturea02.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>12
<FILENAME>marylouisekrakhauer.jpg
<TEXT>
Document 12 - file: marylouisekrakhauer.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>13
<FILENAME>mercurylogo2colorhires.jpg
<TEXT>
Document 13 - file: mercurylogo2colorhires.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>14
<FILENAME>michaeldaniels.jpg
<TEXT>
Document 14 - file: michaeldaniels.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>15
<FILENAME>mikeruppert.jpg
<TEXT>
Document 15 - file: mikeruppert.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>16
<FILENAME>proxycard2019001.jpg
<TEXT>
Document 16 - file: proxycard2019001.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>17
<FILENAME>proxycard2019002.jpg
<TEXT>
Document 17 - file: proxycard2019002.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>18
<FILENAME>proxycoversback001.jpg
<TEXT>
Document 18 - file: proxycoversback001.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>19
<FILENAME>proxycoversfront001.jpg
<TEXT>
Document 19 - file: proxycoversfront001.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>20
<FILENAME>proxygraph2001.jpg
<TEXT>
Document 20 - file: proxygraph2001.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>21
<FILENAME>proxygraph3001.jpg
<TEXT>
Document 21 - file: proxygraph3001.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>22
<FILENAME>proxygraph4001.jpg
<TEXT>
Document 22 - file: proxygraph4001.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>23
<FILENAME>vincevitto.jpg
<TEXT>
Document 23 - file: vincevitto.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>24
<FILENAME>williamobrian.jpg
<TEXT>
Document 24 - file: williamobrian.jpg

</DOCUMENT>
</SEC-DOCUMENT>