Tidal Trust IV 

234 West Florida Street, Suite 700 

Milwaukee, WI 53204

September 1, 2026

VIA EDGAR TRANSMISSION

U.S. Securities and Exchange Commission (the “Commission”) 

Division of Investment Management 

100 F Street, N.E. 

Washington, DC 20549

File Nos. 333-285633, 811-24061

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 Advanced Chip Packaging ETF, VegaShares AI Inference Infrastructure ETF and VegaShares AI On-Devices 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 28, 2026, and filed electronically as Post-Effective Amendment No. 48 to the Trust's Registration Statement on Form N-1A on August 28, 2026.

If you have any questions or require further information, please contact David Mathews at (262) 240-4657 or dmathews@tidalfg.com.

Sincerely,

/s/ David Mathews 

David Mathews 

Senior Counsel II 

Tidal Investments LLC, on behalf of Tidal Trust IV