# EDGAR Filing Document

**Accession Number:** 0001953487
**File Stem:** 0001398344-25-020018
**Filing Date:** 2025-10
**Character Count:** 2605
**Document Hash:** cca42888013369814019dca97000f6e9
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001398344-25-020018.hdr.sgml**: 20251030

**ACCESSION NUMBER**: 0001398344-25-020018

**CONFORMED SUBMISSION TYPE**: 497J

**PUBLIC DOCUMENT COUNT**: 3

**FILED AS OF DATE**: 20251030

**DATE AS OF CHANGE**: 20251030

**EFFECTIVENESS DATE**: 20251030

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Mason Capital Fund Trust
- **CENTRAL INDEX KEY:** 0001953487

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

**FILING VALUES:**
- **FORM TYPE:** 497J
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-270294
- **FILM NUMBER:** 251432685

**BUSINESS ADDRESS:**
- **STREET 1:** 50 FEDERAL STREET, NINTH FLOOR
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02110
- **BUSINESS PHONE:** 6172285190

**MAIL ADDRESS:**
- **STREET 1:** 50 FEDERAL STREET, NINTH FLOOR
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02110

## Series and Classes Contracts Data

### Fundamentals First ETF (Series ID: S000080449)

| Class ID   | Class Name             | Ticker Symbol   |
|:---|:---|:---|
| C000242853 | Fundamentals First ETF |  |

![](image_001.jpg)

October 30, 2025

*Via Edgar Transmission*

Securities and Exchange Commission

100 F Street, NE

Washington, D.C. 20549

Re: <u>Mason Capital Fund Trust, File Nos. 811-23853 and 333-270294</u>

Ladies and Gentlemen:

This letter is being transmitted by means of electronic submission by Mason Capital Fund Trust (the "Trust"), on behalf of the Fundamentals First ETF, pursuant to Rule 497(j) under the Securities Act of 1933, as amended (the "1933 Act"), and Regulation S-T.

Pursuant to Rule 497(j) under the 1933 Act, and on behalf of the Trust, I hereby certify that the form of prospectus and statement of additional information that would have been filed pursuant to Rule 497(c) under the 1933 Act would not have differed from that contained in Post-Effective Amendment No. 2 to the Trust's registration statement on Form N-1A (the "Amendment"). The text of the Amendment was filed electronically with the Securities and Exchange Commission on October 24, 2025 (Accession No. 0001398344-25-019782).

If you have any questions, please contact the undersigned at (614) 469-3353.

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| |
|:---|
| Very truly yours, |
| /s/ Andrew Davalla |
| Andrew Davalla |

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| ![A black background with a black square Description automatically generated with medium confidence](image_003.jpg) | 3900 Key Center<br> 127 Public Square<br> Cleveland, Ohio 44114-1291<br>| www.ThompsonHine.com<br> O: 216.566.5500<br> F: 216.566.5800<br>|

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