<SEC-DOCUMENT>0000894189-25-003864-index.html : 20250516
<SEC-HEADER>0000894189-25-003864.hdr.sgml : 20250516
<ACCEPTANCE-DATETIME>20250516105223
ACCESSION NUMBER:		0000894189-25-003864
CONFORMED SUBMISSION TYPE:	497
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20250516
DATE AS OF CHANGE:		20250516
EFFECTIVENESS DATE:		20250516

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			RBB FUND, INC.
		CENTRAL INDEX KEY:			0000831114
		ORGANIZATION NAME:           	
		EIN:				510312196
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			0831

	FILING VALUES:
		FORM TYPE:		497
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	033-20827
		FILM NUMBER:		25957576

	BUSINESS ADDRESS:	
		STREET 1:		615 E. MICHIGAN ST.
		CITY:			MILWAUKEE
		STATE:			WI
		ZIP:			53202
		BUSINESS PHONE:		609-731-6256

	MAIL ADDRESS:	
		STREET 1:		615 E. MICHIGAN ST.
		CITY:			MILWAUKEE
		STATE:			WI
		ZIP:			53202

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	RBB FUND INC
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	FUND INC /DE/
		DATE OF NAME CHANGE:	19600201
<SERIES-AND-CLASSES-CONTRACTS-DATA>
<EXISTING-SERIES-AND-CLASSES-CONTRACTS>
<SERIES>
<OWNER-CIK>0000831114
<SERIES-ID>S000001094
<SERIES-NAME>Boston Partners Small Cap Value Fund II
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000002982
<CLASS-CONTRACT-NAME>INSTITUTIONAL
<CLASS-CONTRACT-TICKER-SYMBOL>BPSIX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000002983
<CLASS-CONTRACT-NAME>INVESTOR
<CLASS-CONTRACT-TICKER-SYMBOL>BPSCX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0000831114
<SERIES-ID>S000001097
<SERIES-NAME>WPG Partners Small Cap Value Diversified Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000002987
<CLASS-CONTRACT-NAME>INSTITUTIONAL
<CLASS-CONTRACT-TICKER-SYMBOL>WPGTX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0000831114
<SERIES-ID>S000001106
<SERIES-NAME>Boston Partners All-Cap Value Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000002997
<CLASS-CONTRACT-NAME>INSTITUTIONAL
<CLASS-CONTRACT-TICKER-SYMBOL>BPAIX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000002998
<CLASS-CONTRACT-NAME>INVESTOR
<CLASS-CONTRACT-TICKER-SYMBOL>BPAVX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0000831114
<SERIES-ID>S000001108
<SERIES-NAME>Boston Partners Long/Short Equity Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000003001
<CLASS-CONTRACT-NAME>INSTITUTIONAL
<CLASS-CONTRACT-TICKER-SYMBOL>BPLSX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000003002
<CLASS-CONTRACT-NAME>INVESTOR
<CLASS-CONTRACT-TICKER-SYMBOL>BPLEX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0000831114
<SERIES-ID>S000030191
<SERIES-NAME>Boston Partners Long/Short Research Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000092912
<CLASS-CONTRACT-NAME>Investor Class
<CLASS-CONTRACT-TICKER-SYMBOL>BPRRX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000092913
<CLASS-CONTRACT-NAME>Institutional Class
<CLASS-CONTRACT-TICKER-SYMBOL>BPIRX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0000831114
<SERIES-ID>S000035438
<SERIES-NAME>Boston Partners Global Equity Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000108833
<CLASS-CONTRACT-NAME>Investor Class
<CLASS-CONTRACT-TICKER-SYMBOL>BPGRX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000108834
<CLASS-CONTRACT-NAME>Institutional Class
<CLASS-CONTRACT-TICKER-SYMBOL>BPGIX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0000831114
<SERIES-ID>S000051361
<SERIES-NAME>Boston Partners Emerging Markets Dynamic Equity Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000161908
<CLASS-CONTRACT-NAME>Institutional Class
<CLASS-CONTRACT-TICKER-SYMBOL>BELSX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0000831114
<SERIES-ID>S000074882
<SERIES-NAME>Boston Partners Global Sustainability Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000233241
<CLASS-CONTRACT-NAME>Institutional Class
<CLASS-CONTRACT-TICKER-SYMBOL>BPGSX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0000831114
<SERIES-ID>S000074886
<SERIES-NAME>WPG Partners Select Small Cap Value Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000233246
<CLASS-CONTRACT-NAME>Institutional Class
<CLASS-CONTRACT-TICKER-SYMBOL>WPGSX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0000831114
<SERIES-ID>S000084877
<SERIES-NAME>WPG Partners Select Hedged Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000249499
<CLASS-CONTRACT-NAME>Institutional
<CLASS-CONTRACT-TICKER-SYMBOL>WPGHX
</CLASS-CONTRACT>
</SERIES>
</EXISTING-SERIES-AND-CLASSES-CONTRACTS>
</SERIES-AND-CLASSES-CONTRACTS-DATA>
</SEC-HEADER>
<DOCUMENT>
<TYPE>497
<SEQUENCE>1
<FILENAME>bostonpartners497emay2025u.htm
<DESCRIPTION>497
<TEXT>
Document 1 - file: bostonpartners497emay2025u.htm

</DOCUMENT>
</SEC-DOCUMENT>