<SEC-DOCUMENT>0000899797-15-000002-index.html : 20150106
<SEC-HEADER>0000899797-15-000002.hdr.sgml : 20150106
<ACCEPTANCE-DATETIME>20150106124243
ACCESSION NUMBER:		0000899797-15-000002
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20150106
DATE AS OF CHANGE:		20150106

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			GSE SYSTEMS INC
		CENTRAL INDEX KEY:			0000944480
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-PREPACKAGED SOFTWARE [7372]
		IRS NUMBER:				521868008
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-45371
		FILM NUMBER:		15508967

	BUSINESS ADDRESS:	
		STREET 1:		1332 LONDONTOWN BLVD
		CITY:			SYKESVILLE
		STATE:			MD
		ZIP:			21784
		BUSINESS PHONE:		4109707874

	MAIL ADDRESS:	
		STREET 1:		1332 LONDONTOWN BLVD
		CITY:			SYKESVILLE
		STATE:			MD
		ZIP:			21784

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Leonard Mark
		CENTRAL INDEX KEY:			0001617053

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	MAIL ADDRESS:	
		STREET 1:		20 ADELAIDE ST. EAST,
		STREET 2:		SUITE 1200
		CITY:			TORONTO
		STATE:			A6
		ZIP:			M5C 2T6
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>mleonardsch13ga.htm
<DESCRIPTION>MARK LEONARD SCHEDULE 13G AMENDMENT NO 1
<TEXT>
Document 1 - file: mleonardsch13ga.htm

</DOCUMENT>
</SEC-DOCUMENT>