First Trust Exchange-Traded Fund VIII

10/10/2025 | Press release | Distributed by Public on 10/10/2025 14:34

Prospectus by Investment Company (Form 497)

Rule 497(e)

Registration Nos. 333-210186 and 811-23147

First Trust Exchange-Traded Fund VIII

(the "Trust")

FT VEST U.S. EQUITY QUARTERLY 2.5 TO 15 BUFFER ETF

(the "Fund")

SUPPLEMENT TO THE FUND'S PROSPECTUS

Dated October 10, 2025

As described in the Fund's prospectus, Fund shareholders are subject to an upside return cap that represents the maximum percentage return an investor can achieve from an investment in the Fund for a given Target Outcome Period. On October 17, 2025, the Fund's current Target Outcome Period will end, and a new Target Outcome Period will begin as of October 20, 2025. The new Target Outcome Period will end on January 16, 2026. While the actual caps will not be determined until the first day of the new Target Outcome Period, set forth below are the anticipated cap ranges for the Fund for the Target Outcome Period beginning on October 20, 2025. A supplement to the Fund's prospectus will be filed on October 20, 2025 that will include the actual cap for the new Target Outcome Period, which may be higher or lower than the anticipated cap ranges set forth below.

Fund

Anticipated
cap range

(before fees and expenses)

Anticipated cap range

(after fees and expenses, excluding brokerage commissions, trading fees, taxes and extraordinary expenses not included in the Fund's management fee)

FT Vest U.S. Equity Quarterly 2.5 to 15 Buffer ETF (DHDG) 3.60% - 4.30% 3.39% - 4.09%

Please Keep this Supplement with your Fund Prospectus for Future Reference

First Trust Exchange-Traded Fund VIII published this content on October 10, 2025, and is solely responsible for the information contained herein. Distributed via SEC EDGAR on October 10, 2025 at 20:35 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]