<SEC-DOCUMENT>0001193125-25-198337-index.html : 20250908
<SEC-HEADER>0001193125-25-198337.hdr.sgml : 20250908
<ACCEPTANCE-DATETIME>20250908160925
ACCESSION NUMBER:		0001193125-25-198337
CONFORMED SUBMISSION TYPE:	497AD
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20250908
DATE AS OF CHANGE:		20250908

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			GLADSTONE CAPITAL CORP
		CENTRAL INDEX KEY:			0001143513
		ORGANIZATION NAME:           	
		EIN:				542040781
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			0930

	FILING VALUES:
		FORM TYPE:		497AD
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-275934
		FILM NUMBER:		251300125

	BUSINESS ADDRESS:	
		STREET 1:		1521 WESTBRANCH DRIVE
		STREET 2:		SUITE 100
		CITY:			MCLEAN
		STATE:			VA
		ZIP:			22102
		BUSINESS PHONE:		703-287-5800

	MAIL ADDRESS:	
		STREET 1:		1521 WESTBRANCH DRIVE
		STREET 2:		SUITE 100
		CITY:			MCLEAN
		STATE:			VA
		ZIP:			22102
</SEC-HEADER>
<DOCUMENT>
<TYPE>497AD
<SEQUENCE>1
<FILENAME>d949735d497ad.htm
<DESCRIPTION>497AD
<TEXT>
Document 1 - file: d949735d497ad.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>g949735g0908154607877.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: g949735g0908154607877.jpg

</DOCUMENT>
</SEC-DOCUMENT>