# EDGAR Filing Document

**Accession Number:** 0001618627
**File Stem:** 0001398344-26-006986
**Filing Date:** 2026-4
**Character Count:** 3112
**Document Hash:** 173b8d1c1eadaf6200ec3522b48ab9e6
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001398344-26-006986.hdr.sgml**: 20260423

**ACCESSION NUMBER**: 0001398344-26-006986

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260423

**DATE AS OF CHANGE**: 20260423

**EFFECTIVENESS DATE**: 20260423

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** RBB Fund Trust
- **CENTRAL INDEX KEY:** 0001618627

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 0831

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-200168
- **FILM NUMBER:** 26887816

**BUSINESS ADDRESS:**
- **STREET 1:** 615 EAST MICHIGAN STREET
- **CITY:** MILWAUKEE
- **STATE:** WI
- **ZIP:** 53202
- **BUSINESS PHONE:** 609-731-6256

**MAIL ADDRESS:**
- **STREET 1:** 615 EAST MICHIGAN STREET
- **CITY:** MILWAUKEE
- **STATE:** WI
- **ZIP:** 53202

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** PENN Capital Funds Trust
- **DATE OF NAME CHANGE:** 20140904

## Series and Classes Contracts Data

### Twin Oak Active Opportunities III ETF (Series ID: S000092955)

---

|  |  |  |
|:---|:---|:---|
| Class Name                            | Ticker Symbol | Class ID   |
| Twin Oak Active Opportunities III ETF | TOAO          | C000261005 |

---

## Series and Classes Contracts Data

### Twin Oak Active Opportunities III ETF (Series ID: S000092955)

| Class ID   | Class Name                            | Ticker Symbol   |
|:---|:---|:---|
| C000261005 | Twin Oak Active Opportunities III ETF | TOAO            |

**THE RBB FUND TRUST**

**Twin Oak Active Opportunities III ETF**

**(the "Fund")**

**______________________________________________________________________**

**Supplement dated April 23, 2026 to the Prospectus and Statement of Additional Information ("SAI") each dated December 31, 2025**

**______________________________________________________________________**

*This supplement serves as notification of the following change:* 

Twin Oak ETF Company (the "Adviser") has agreed to voluntarily waive its management fee in order to limit the management fee to 0.30% for the Fund.

*The following paragraph is added to the <u>Management of the Funds - Investment Adviser</u> section of the Prospectus:*

The Adviser has voluntarily agreed to waive its management fee in order to limit the management fee to 0.30% for the Twin Oak Active Opportunities III ETF. The Adviser may not recoup waived management fees. The Adviser may discontinue this arrangement at any time upon a 30-day written notice to shareholders.

*The following paragraph is added to the <u>Investment Advisory and Sub-Advisory Agreements – Investment Advisory Agreement</u> section of the SAI:*

The Adviser has voluntarily agreed to waive its management fee in order to limit the management fee to 0.30% for the Twin Oak Active Opportunities III ETF. The Adviser may not recoup waived management fees. The Adviser may discontinue this arrangement at any time upon a 30-day written notice to shareholders.

**\* \* \* \* \***

**Please retain this supplement for your reference.**