# EDGAR Filing Document

**Accession Number:** 0001505064
**File Stem:** 0000894189-26-011857
**Filing Date:** 2026-4
**Character Count:** 2593
**Document Hash:** d30691e7644b11d7b66e434d8791386e
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000894189-26-011857.hdr.sgml**: 20260403

**ACCESSION NUMBER**: 0000894189-26-011857

**CONFORMED SUBMISSION TYPE**: 497J

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260403

**DATE AS OF CHANGE**: 20260403

**EFFECTIVENESS DATE**: 20260403

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** MainGate Trust
- **CENTRAL INDEX KEY:** 0001505064

**ORGANIZATION NAME:**
- **EIN:** 276896939
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 497J
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-170422
- **FILM NUMBER:** 26837304

**BUSINESS ADDRESS:**
- **STREET 1:** 6075 POPLAR AVE.
- **STREET 2:** SUITE 720
- **CITY:** MEMPHIS
- **STATE:** TN
- **ZIP:** 38119
- **BUSINESS PHONE:** 901-537-1866

**MAIL ADDRESS:**
- **STREET 1:** 6075 POPLAR AVE.
- **STREET 2:** SUITE 720
- **CITY:** MEMPHIS
- **STATE:** TN
- **ZIP:** 38119

## Series and Classes Contracts Data

### MainGate MLP Fund (Series ID: S000031058)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000096312 | Class A      | AMLPX           |
| C000096313 | Class I      | IMLPX           |
| C000142071 | Class C      | MLCPX           |

MainGate Trust

c/o U.S. Bank Global Fund Services

615 E. Michigan Street

Milwaukee, WI 53202

April 3, 2026

**VIA EDGAR TRANSMISSION**

United States Securities and Exchange Commission

Division of Investment Management

100 F Street, N.E.

Washington, D.C. 20549

Re: MainGate Trust (the "Trust") <br> File Nos.: 333-170422 and 811-22492

Dear Sir or Madam:

Pursuant to Rule 497(j) under the Securities Act of 1933 (the "1933 Act"), as amended, and pursuant to the Investment Company Act of 1940, as amended, and the regulations thereunder, the trust on behalf of its series, the MainGate MLP Fund, hereby certifies that the forms of Prospectus and Statement of Additional Information that would have been filed under Rule 497(c) under the 1933 Act would not have differed from that contained in the most recent amendment to the Trust's registration statement dated March 31, 2026, and filed electronically as Post-Effective Amendment No. 26 to the Trust's Registration Statement on Form N-1A on March 27, 2026.

If you have any questions regarding the enclosed, please contact the undersigned at (907) 406-2325 or nicole.washington@usbank.com.

Sincerely,

<u>/s/ Nicole Washington</u> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

Nicole Washington

For U.S. Bank Global Fund Services

as Administrator to the Trust

<br>