# EDGAR Filing Document

**Accession Number:** 0001424212
**File Stem:** 0001445546-25-008804
**Filing Date:** 2026-1
**Character Count:** 2974
**Document Hash:** e4b3d4785f4882f56f7122aca8cf2e3b
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001445546-25-008804.hdr.sgml**: 20260102

**ACCESSION NUMBER**: 0001445546-25-008804

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 14

**FILED AS OF DATE**: 20260102

**DATE AS OF CHANGE**: 20251231

**EFFECTIVENESS DATE**: 20260102

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** FIRST TRUST EXCHANGE-TRADED FUND III
- **CENTRAL INDEX KEY:** 0001424212

**ORGANIZATION NAME:**
- **EIN:** 000000000

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-176976
- **FILM NUMBER:** 251618239

**BUSINESS ADDRESS:**
- **STREET 1:** 120 EAST LIBERTY DRIVE
- **STREET 2:** SUITE 400
- **CITY:** WHEATON
- **STATE:** IL
- **ZIP:** 60187
- **BUSINESS PHONE:** 630-765-8000

**MAIL ADDRESS:**
- **STREET 1:** 120 EAST LIBERTY DRIVE
- **STREET 2:** SUITE 400
- **CITY:** WHEATON
- **STATE:** IL
- **ZIP:** 60187

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** First Trust Exchange-Traded Fund III
- **DATE OF NAME CHANGE:** 20160419

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** First Trust Exchange Traded Fund III
- **DATE OF NAME CHANGE:** 20080116

## Series and Classes Contracts Data

### First Trust New York Municipal High Income ETF (Series ID: S000070485)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                     | Ticker Symbol | Class ID   |
| First Trust New York Municipal High Income ETF | FMNY          | C000223991 |

---

## Series and Classes Contracts Data

### First Trust New York Municipal High Income ETF (Series ID: S000070485)

| Class ID   | Class Name                                     | Ticker Symbol   |
|:---|:---|:---|
| C000223991 | First Trust New York Municipal High Income ETF | FMNY            |

?xml version='1.0' encoding='ASCII'?

Rule 497(e)

Registration Nos. 333-176976 and 811-22245

First Trust Exchange-Traded Fund III

(the *"Trust"*)

First Trust New York Municipal High Income ETF

(the *"Fund"*)

Supplement to the Fund's Prospectus, Summary Prospectus,

and Statement of Additional Information

DATED JANUARY 2, 2026

Notwithstanding anything to the contrary in the Fund's prospectus, summary prospectus, or statement of additional information, effective as of January 1, 2026, First Trust Advisors L.P., the Fund's investment advisor, has agreed to waive a portion of its annual unitary management fees in the amount of 0.16%, resulting in total annual unitary management fees after the waiver of 0.49%. The fee waiver applies to annual unitary management fees only, and not to any other Fund expenses such as acquired fund fees or extraordinary expenses.

Please note that during any period in which such waiver is in effect, the Fund will not be eligible for any breakpoint discounts described in the Fund's prospectus or statement of additional information.

Please Keep this Supplement with your Fund's Prospectus, Summary Prospectus,

and Statement of Additional Information for Future Reference