# EDGAR Filing Document

**Accession Number:** 0000831114
**File Stem:** 0001398344-25-011183
**Filing Date:** 2025-6
**Character Count:** 3522
**Document Hash:** 597f3b5e2f030df0cbdfcccb48de6e94
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001398344-25-011183.hdr.sgml**: 20250603

**ACCESSION NUMBER**: 0001398344-25-011183

**CONFORMED SUBMISSION TYPE**: 497J

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20250603

**DATE AS OF CHANGE**: 20250603

**EFFECTIVENESS DATE**: 20250603

**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:** 497J
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 033-20827
- **FILM NUMBER:** 251020222

**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

### F/m Small Cap Core ETF (Series ID: S000091531)

| Class ID   | Class Name             | Ticker Symbol   |
|:---|:---|:---|
| C000259199 | F/m Small Cap Core ETF | FMSC            |

### F/m Small Cap Growth ETF (Series ID: S000091532)

| Class ID   | Class Name               | Ticker Symbol   |
|:---|:---|:---|
| C000259200 | F/m Small Cap Growth ETF | FMSG            |

### F/m SMID Equity ETF (Series ID: S000091540)

| Class ID   | Class Name          | Ticker Symbol   |
|:---|:---|:---|
| C000259208 | F/m SMID Equity ETF | FMSM            |

### F/m Short Duration High Coupon Tax-Free Municipal ETF (Series ID: S000091541)

| Class ID   | Class Name                                            | Ticker Symbol   |
|:---|:---|:---|
| C000259209 | F/m Short Duration High Coupon Tax-Free Municipal ETF | ZMUN            |

Faegre Drinker Biddle & Reath LLP

One Logan Square, Suite 2000

Philadelphia, PA 19103

(215) 988-2700 (Phone)

(215) 988-2757 (Facsimile)

www.faegredrinker.com

June 3, 2025

**VIA EDGAR TRANSMISSION**

U.S. Securities and Exchange Commission

Division of Investment Management

100 F Street, N.E.

Washington, D.C. 20549

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| | |
|:---|:---|
| Re: | **The RBB Fund, Inc. (the "Company")** |
|  | **File Nos.: 033-20827 and 811-05518** |
|  | **F/m Short Duration High Coupon Tax-Free Municipal ETF, F/m Small Cap Core ETF, F/m Small Cap Growth ETF, and F/m SMID Equity ETF** (**each a "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 each 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 May 16, 2025 and filed electronically as post-effective amendment No. 352 to the Company's registration statement on Form N-1A on May 16, 2025.

If you have any questions or require further information, please do not hesitate to contact the undersigned at (215)-988-8212 or ya.wang@faegredrinker.com.

---

| |
|:---|
| Respectfully, |
| /s/ Ya Wang |
| Ya Wang |

---

Enclosures

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