0001517936 2025-10-31 2025-10-31 0001517936 MGOV:S000080998Member 2025-10-30 2025-10-30 false N-1A 2026-08-20 2026-08-20 0001517936 2025-10-31 497 First Trust Exchange-Traded Fund IV <p style="font: 10pt/12pt Arial, Helvetica, Sans-Serif; margin: 10pt 0 -0.25in; text-transform: uppercase; text-align: left"> </p> <table cellpadding="0" cellspacing="0" style="width: 100%; font: 10pt/12pt Arial, Helvetica, Sans-Serif; margin-top: 6pt; margin-bottom: 0"><tr style="vertical-align: top"> <td style="width: 0.25in"></td><td style="width: 0.25in">1.</td><td style="text-align: justify">Notwithstanding anything to the contrary in the Fund’s prospectus, effective as of the date set forth above, the final paragraph of the section entitled “Principal Investment Strategies” is hereby deleted in its entirety.</td></tr></table> <table cellpadding="0" cellspacing="0" style="width: 100%; font: 10pt/12pt Arial, Helvetica, Sans-Serif; margin-top: 6pt; margin-bottom: 0"><tr style="vertical-align: top"> <td style="width: 0.25in"></td><td style="width: 0.25in">2.</td><td style="text-align: justify">Notwithstanding anything to the contrary in the Fund’s prospectus, effective as of the date set forth above, the risk factor “Non-Diversification Risk” set forth in the section entitled “Principal Risks” is hereby deleted in its entirety.</td></tr></table>