# EDGAR Filing Document

**Accession Number:** 0001722388
**File Stem:** 0001999371-25-013659
**Filing Date:** 2025-9
**Character Count:** 3036
**Document Hash:** 9f1f85f8627e73d3973046c11700047f
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001999371-25-013659.hdr.sgml**: 20250919

**ACCESSION NUMBER**: 0001999371-25-013659

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20250919

**DATE AS OF CHANGE**: 20250919

**EFFECTIVENESS DATE**: 20250919

**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:** 251326355

**BUSINESS ADDRESS:**
- **STREET 1:** CORPORATION TRUST CENTER 1209 ORANGE ST
- **CITY:** WILMINGTON
- **STATE:** DE
- **ZIP:** 19801
- **BUSINESS PHONE:** 4694428424

**MAIL ADDRESS:**
- **STREET 1:** CORPORATION TRUST CENTER 1209 ORANGE ST
- **CITY:** WILMINGTON
- **STATE:** DE
- **ZIP:** 19801

**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

### Intech S&P Large Cap Diversified Alpha ETF (Series ID: S000090660)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                 | Ticker Symbol | Class ID   |
| Intech S&P Large Cap Diversified Alpha ETF | LGDX          | C000257940 |

---

### Intech S&P Small-Mid Cap Diversified Alpha ETF (Series ID: S000090661)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                     | Ticker Symbol | Class ID   |
| Intech S&P Small-Mid Cap Diversified Alpha ETF | SMDX          | C000257941 |

---

## Series and Classes Contracts Data

### Intech S&P Large Cap Diversified Alpha ETF (Series ID: S000090660)

| Class ID   | Class Name                                 | Ticker Symbol   |
|:---|:---|:---|
| C000257940 | Intech S&P Large Cap Diversified Alpha ETF | LGDX            |

### Intech S&P Small-Mid Cap Diversified Alpha ETF (Series ID: S000090661)

| Class ID   | Class Name                                     | Ticker Symbol   |
|:---|:---|:---|
| C000257941 | Intech S&P Small-Mid Cap Diversified Alpha ETF | SMDX            |

Filed pursuant to Rule 497(e) <br> File Nos. 333-221764 and 811-23312

![](intech497001.jpg)

**Intech S&P Large Cap Diversified Alpha ETF (LGDX)**

**Intech S&P Small-Mid Cap Diversified Alpha ETF (SMDX)**

(the "Funds")

 

*Each listed on NYSE Arca, Inc.*

September 19, 2025

**Supplement to the** 

**Summary Prospectuses, Prospectus and** 

**Statement of Additional Information ("SAI"), each dated February 26, 2025, as previously supplemented**

*Effective September 19, 2025, Jian Tang no longer serves as a portfolio manager to the Funds. Accordingly, effective September 19, 2025, all references to Jian Tang in the Funds' Summary Prospectuses, Prospectus and SAI are deleted in their entirety.*

 

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