# EDGAR Filing Document

**Accession Number:** 0001722388
**File Stem:** 0001999371-26-012472
**Filing Date:** 2026-6
**Character Count:** 2180
**Document Hash:** 1e124cd4d2c233767f7c287743172049
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001999371-26-012472.hdr.sgml**: 20260609

**ACCESSION NUMBER**: 0001999371-26-012472

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20260609

**DATE AS OF CHANGE**: 20260609

**EFFECTIVENESS DATE**: 20260609

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Tidal Trust III
- **CENTRAL INDEX KEY:** 0001722388

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-221764
- **FILM NUMBER:** 261075792

**BUSINESS ADDRESS:**
- **STREET 1:** 234 WEST FLORIDA STREET, SUITE 700
- **CITY:** MILWAUKEE
- **STATE:** WI
- **ZIP:** 53204
- **BUSINESS PHONE:** 4694428424

**MAIL ADDRESS:**
- **STREET 1:** 234 WEST FLORIDA STREET, SUITE 700
- **CITY:** MILWAUKEE
- **STATE:** WI
- **ZIP:** 53204

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Impact Shares Trust I
- **DATE OF NAME CHANGE:** 20180319

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Impact Shares Funds I Trust
- **DATE OF NAME CHANGE:** 20171113

## Series and Classes Contracts Data

### U.S. Defense ETF (Series ID: S000102360)

---

|  |  |  |
|:---|:---|:---|
| Class Name       | Ticker Symbol | Class ID   |
| U.S. Defense ETF | DUTY          | C000272837 |

---

## Series and Classes Contracts Data

### U.S. Defense ETF (Series ID: S000102360)

| Class ID   | Class Name       | Ticker Symbol   |
|:---|:---|:---|
| C000272837 | U.S. Defense ETF | DUTY            |

Filed pursuant to Rule 497(e)

Registration Nos. 333-221764; 811-23312

![](duty497_001.jpg)

**(DUTY)** **U.S. Defense ETF**

(the "Fund")

*listed on NYSE Arca, Inc.*

June 9, 2026

**Supplement to the Prospectus and**

**Statement of Additional Information ("SAI"), each dated April 6, 2026, as previously supplemented**

Effective immediately, all references in the Prospectus and SAI to distributions of dividends and interest income, if any, are hereby changed to reflect that the Fund intends to pay out dividends and interest income, if any, annually.

**Please retain this Supplement for future reference.**