Form 497J RBB FUND, INC.

 

Faegre Drinker Biddle & Reath LLP

1500 K Street NW

Suite 1100

Washington, D.C. 20005

Telephone: (202) 842-8800

www.faegredrinker.com

June 16, 2026

 

VIA EDGAR TRANSMISSION

 

U.S. Securities and Exchange Commission

Division of Investment Management

100 F Street, N.E.

Washington, D.C. 20549

 

	Re:	The RBB Fund, Inc. (the “Company”)
		File Nos.: 033-20827 and 811-05518
		F/m Accumulator Ultrashort U.S. Treasury Fund (the “Fund”)

 

Dear Sir or Madam:

 

Pursuant to Rule 497(j) under the Securities Act of 1933, as amended; the Investment Company Act of 1940, as amended; and the regulations thereunder; the Company on behalf of the Fund, hereby certifies that the form of prospectus and statement of additional information that would have been filed under Rule 497(b) or (c) would not have differed from that contained in the most recent amendment for such Fund dated June 10, 2026 and filed electronically as post-effective amendment No. 400 to the Company’s registration statement on Form N-1A on June 9, 2026.

 

If you have any questions or require further information, please do not hesitate to contact the undersigned at (202) 230-5218 or [email protected].

 

Respectfully,
/s/ Gwendolyn A. Williamson
Gwendolyn A. Williamson

 

Enclosures

 

cc:	Steven Plump, The RBB Fund, Inc.
	James Shaw, The RBB Fund, Inc.
	Jillian L. Bosmann, Faegre Drinker Biddle & Reath LLP

 

 

 

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