    <SEC-DOCUMENT>0001193125-18-194188-index.html : 20180615
    <SEC-HEADER>0001193125-18-194188.hdr.sgml : 20180615
    <ACCEPTANCE-DATETIME>20180615132835
    ACCESSION NUMBER:		0001193125-18-194188
    CONFORMED SUBMISSION TYPE:	DEF 14A
    PUBLIC DOCUMENT COUNT:		6
    CONFORMED PERIOD OF REPORT:	20180802
    FILED AS OF DATE:		20180615
    DATE AS OF CHANGE:		20180615
    EFFECTIVENESS DATE:		20180615

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			GLADSTONE INVESTMENT CORPORATION\DE
    		CENTRAL INDEX KEY:			0001321741
    		IRS NUMBER:				830423116
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			0331

    	FILING VALUES:
    		FORM TYPE:		DEF 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	814-00704
    		FILM NUMBER:		18901731

    	BUSINESS ADDRESS:
    		STREET 1:		1521 WESTBRANCH DRIVE
    		STREET 2:		SUITE 100
    		CITY:			MCLEAN
    		STATE:			VA
    		ZIP:			22102
    		BUSINESS PHONE:		7032875800

    	MAIL ADDRESS:
    		STREET 1:		1521 WESTBRANCH DRIVE
    		STREET 2:		SUITE 100
    		CITY:			MCLEAN
    		STATE:			VA
    		ZIP:			22102
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEF 14A
    <SEQUENCE>1
    <FILENAME>d587235ddef14a.htm
    <DESCRIPTION>DEF 14A
    <TEXT>
    Document 1 - file: d587235ddef14a.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>g587235g31d43.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 2 - file: g587235g31d43.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>g587235img01.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: g587235img01.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>g587235img02.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 4 - file: g587235img02.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>g587235img03.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 5 - file: g587235img03.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>g587235img04.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 6 - file: g587235img04.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>