# EDGAR Filing Document

**Accession Number:** 0001014913
**File Stem:** 0001104659-25-106335
**Filing Date:** 2025-11
**Character Count:** 3147
**Document Hash:** eedcaca992fc7a9490b4db8275f05f04
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-25-106335.hdr.sgml**: 20251104

**ACCESSION NUMBER**: 0001104659-25-106335

**CONFORMED SUBMISSION TYPE**: 497J

**PUBLIC DOCUMENT COUNT**: 4

**FILED AS OF DATE**: 20251104

**DATE AS OF CHANGE**: 20251104

**EFFECTIVENESS DATE**: 20251104

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** MFG FUNDS, INC.
- **CENTRAL INDEX KEY:** 0001014913

**ORGANIZATION NAME:**
- **EIN:** 364104131
- **STATE OF INCORPORATION:** MD
- **FISCAL YEAR END:** 0630

**FILING VALUES:**
- **FORM TYPE:** 497J
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-07305
- **FILM NUMBER:** 251450139

**BUSINESS ADDRESS:**
- **STREET 1:** 999 OAKMONT PLAZA DRIVE
- **STREET 2:** SUITE 600
- **CITY:** WESTMONT
- **STATE:** IL
- **ZIP:** 60559
- **BUSINESS PHONE:** 1-888-825-2100

**MAIL ADDRESS:**
- **STREET 1:** 999 OAKMONT PLAZA DRIVE
- **STREET 2:** SUITE 600
- **CITY:** WESTMONT
- **STATE:** IL
- **ZIP:** 60559

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** FRONTIER FUNDS, INC.
- **DATE OF NAME CHANGE:** 20141031

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** FRONTEGRA FUNDS INC
- **DATE OF NAME CHANGE:** 19960520

## Series and Classes Contracts Data

### MFG Core Infrastructure Fund (Series ID: S000035417)

| Class ID   | Class Name          | Ticker Symbol   |
|:---|:---|:---|
| C000108790 | Institutional Class | FMGIX           |
| C000167328 | Service Class       | FCIVX           |

### MFG Global Sustainable Fund (Series ID: S000063792)

| Class ID   | Class Name                 | Ticker Symbol   |
|:---|:---|:---|
| C000206680 | Institutional Class Shares | FMSGX           |
| C000206681 | Service Class Shares       | FMSRX           |

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| ![](tm2528695d2_497jimg01.jpg) | ![](tm2528695d2_497jimg02.jpg) |

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November 4, 2025

**<u>Via EDGAR</u>**

U.S. Securities and Exchange Commission Judiciary Plaza 100 F Street, NE Washington, D.C. 20549

RE: MFG Funds, Inc.<br> (Registration Nos. 333-07305; 811-07685)

Ladies and Gentlemen:

On behalf of MFG Funds, Inc. (formerly, Frontier Funds, Inc.) (the "Company") pursuant to Rule 497(c) under the Securities Act of 1933, as amended (the "Act"), the final form of the Prospectus for the MFG Core Infrastructure Fund and the Statement of Additional Information for each series of the Company is being filed concurrently with this letter.

In lieu of filing the form of the Company's Prospectus for the MFG Global Sustainable Fund pursuant to Rule 497(c) of the Act, we are hereby providing you with notice in accordance with Rule 497(j) under the Act that the Prospectus for the MFG Global Sustainable Fund that would have been filed pursuant to Rule 497(c) of the Act would not have differed from the form of the Prospectus contained in Post-Effective Amendment No. 131. The text of Post-Effective Amendment No. 131 was filed electronically via EDGAR on October 28, 2025.

If you have any questions regarding this letter, please do not hesitate to contact me.

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|:---|
| Very truly yours, |
| GODFREY & KAHN, S.C. |
| */s/ Emma L. Janicki* |
| Emma L. Janicki |

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![](tm2528695d2_497jimg03.jpg)