Prospectus Certification by Investment Company (Form 497J)

Tidal Trust IV

234 West Florida Street, Suite 700

Milwaukee, WI 53204

August 6, 2026

VIA EDGAR TRANSMISSION

U.S. Securities and Exchange Commission (the "Commission")

Division of Investment Management

100 F Street, N.E.

Washington, DC 20549

To the Commission:

Pursuant to Rule 497(j) under the Securities Act of 1933, as amended, and the regulations thereunder, the Trust on behalf of its series, VegaShares AI Thermal, Cooling & Power Management ETF, VegaShares AI Networking ETF, VegaShares AI Rack Hardware ETF, VegaShares AI Fab Equipment ETF and VegaShares AI Compute ETF, hereby certifies that the forms 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 effective August 3, 2026, and filed electronically as Post-Effective Amendment No. 39 to the Trust's Registration Statement on Form N-1A on August 3, 2026.

If you have any questions or require further information, please contact David Mathews at (262) 240-4657 or [email protected].

Sincerely,

/s/ David Mathews

David Mathews

Senior Counsel II

Tidal Investments LLC, on behalf of Tidal Trust IV