THE RBB FUND, INC.
EMERALD BANKING & FINANCE EVOLUTION FUND
EMERALD GROWTH FUND
Supplement dated July 10, 2026
to the Prospectus dated
This supplement serves as notification of the following changes, effective immediately:
| 1. | NEW WEBSITE |
Information regarding the Emerald Growth
Fund, including the Prospectus, SAI, reports to shareholders, and other information, is available at
| 2. | CHANGE IN CLASS A SALES LOAD MINIMUM for EMERALD GROWTH FUND |
The minimum investment amount eligible to receive a discount to purchase Class A Shares of the Emerald Growth Fund has been reduced from $100,000 to $50,000. Accordingly, the paragraph in the Prospectus entitled “Summary Section – Emerald Growth Fund – Fees and Expenses of the Fund” is amended and restated in its entirety as shown below:
| 3. | CHANGES IN APPENDIX A - INTERMEDIARY SALES CHARGE WAIVERS AND DISCOUNTS |
The “Appendix A – Intermediary Sales Charge Waivers and Discounts” section in the Prospectus is hereby updated by adding the following:
RAYMOND JAMES
Raymond James & Associates, Inc., Raymond James Financial Services, Inc. and each entity’s affiliates (“Raymond James”)
Effective March 1, 2019, shareholders purchasing Fund shares through a Raymond James platform or account, or through an introducing broker-dealer or independent registered investment adviser for which Raymond James provides trade execution, clearance, and/or custody services, will be eligible only for the following load waivers (front-end sales charge waivers and contingent deferred, or back-end, sales charge waivers) and discounts, which may differ from those disclosed elsewhere in this Fund’s Prospectus or SAI.
Front-end sales load waivers on Class A Shares available at Raymond James
• Shares purchased in an investment advisory program.
• Shares purchased within the same fund family through a systematic reinvestment of capital gains and dividend distributions.
• Employees and registered representatives of Raymond James or its affiliates and their family members as designated by Raymond James.
• Shares purchased from the proceeds of redemptions within the same fund family, provided (1) the repurchase occurs within 90 days following the redemption, (2) the redemption and purchase occur in the same account, and (3) redeemed shares were subject to a front-end or deferred sales load (known as Rights of Reinstatement).
• A shareholder in the Fund’s Class C Shares will have their shares converted at net asset value to Class A Shares (or the appropriate share class) of the Fund if the shares are no longer subject to a CDSC and the conversion is in line with the policies and procedures of Raymond James.
CDSC Waivers on Classes A, B, and C Shares available at Raymond James
• Death or disability of the shareholder.
• Shares sold as part of a systematic withdrawal plan as described in the fund’s prospectus.
• Return of excess contributions from an IRA Account.
• Shares sold as part of a required minimum distribution for IRA and retirement accounts due to the shareholder reaching the qualified age based on applicable IRS regulations as described in the Fund’s Prospectus.
• Shares sold to pay Raymond James fees but only if the transaction is initiated by Raymond James.
• Shares acquired through a right of reinstatement.
Front-end load discounts available at Raymond James: breakpoints, rights of accumulation, and/or letters of intent
• Breakpoints as described in this Prospectus.
• Rights of accumulation which entitle shareholders to breakpoint discounts will be automatically calculated based on the aggregated holding of fund family assets held by accounts within the purchaser’s household at Raymond James. Eligible fund family assets not held at Raymond James may be included in the calculation of rights of accumulation only if the shareholder notifies his or her financial advisor about such assets.
• Letters of intent which allow for breakpoint discounts based on anticipated purchases within a fund family, over a 13-month time period. Eligible fund family assets not held at Raymond James may be included in the calculation of letters of intent only if the shareholder notifies his or her financial advisor about such assets.
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Please retain this supplement for your reference.