# EDGAR Filing Document

**Accession Number:** 0001368578
**File Stem:** 0001162044-26-000549
**Filing Date:** 2026-6
**Character Count:** 2698
**Document Hash:** 45a1d004fb29b5cda133123b9b3828e1
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001162044-26-000549.hdr.sgml**: 20260626

**ACCESSION NUMBER**: 0001162044-26-000549

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260626

**DATE AS OF CHANGE**: 20260626

**EFFECTIVENESS DATE**: 20260626

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** MSS Series Trust
- **CENTRAL INDEX KEY:** 0001368578

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

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-135714
- **FILM NUMBER:** 261124003

**BUSINESS ADDRESS:**
- **STREET 1:** 8000 TOWN CENTRE DRIVE, SUITE 400
- **CITY:** BROADVIEW HEIGHTS
- **STATE:** OH
- **ZIP:** 44147
- **BUSINESS PHONE:** 440-922-0066

**MAIL ADDRESS:**
- **STREET 1:** 8000 TOWN CENTRE DRIVE, SUITE 400
- **CITY:** BROADVIEW HEIGHTS
- **STATE:** OH
- **ZIP:** 44147

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** AMM FUNDS
- **DATE OF NAME CHANGE:** 20071002

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** FALLEN ANGELS FAMILY OF FUNDS
- **DATE OF NAME CHANGE:** 20070611

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** American Money Management Funds
- **DATE OF NAME CHANGE:** 20060710

## Series and Classes Contracts Data

### One Rock Fund (Series ID: S000067573)

---

|  |  |
|:---|:---|
| Class Name    | Class ID   |
| One Rock Fund | C000217291 |

---

## Series and Classes Contracts Data

### One Rock Fund (Series ID: S000067573)

| Class ID   | Class Name    | Ticker Symbol   |
|:---|:---|:---|
| C000217291 | One Rock Fund |  |

**MSS Series Trust**

**One Rock Fund**<br> Ticker: ONERX

**Supplement dated June 26, 2026 to the Prospectus, Summary Prospectus, and <br> Statement of Additional Information ("SAI") each dated March 31, 2026**

___________________________________________________________________________________________

Effective June 26, 2026, the One Rock Fund (the "Fund") will be renamed to the True Rock Fund. In connection with this change, the ticker symbol will change from ONERX to TRUEX.

Accordingly, all references to "One Rock Fund" and "ONERX" in the Fund's Prospectus, Summary Prospectus, and SAI are hereby deleted and replaced with "True Rock Fund" and "TRUEX", respectively.

***You should read this Supplement in conjunction with the Fund's Prospectus, Summary Prospectus, and SAI, dated March 31, 2026. These documents are available upon request and without charge by calling the Fund at 1-800-564-3899 or by writing to the Fund at 8000 Town Centre Drive, Suite 400, Broadview Heights, Ohio 44147-4031.***

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

<br>