# EDGAR Filing Document

**Accession Number:** 0001587551
**File Stem:** 0001580642-26-000187
**Filing Date:** 2026-1
**Character Count:** 2737
**Document Hash:** fe4a2d27f43de2ff4ce50bdf6ca9f396
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001580642-26-000187.hdr.sgml**: 20260109

**ACCESSION NUMBER**: 0001580642-26-000187

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260109

**DATE AS OF CHANGE**: 20260109

**EFFECTIVENESS DATE**: 20260109

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Capitol Series Trust
- **CENTRAL INDEX KEY:** 0001587551

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** OH
- **FISCAL YEAR END:** 0831

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-191495
- **FILM NUMBER:** 26521988

**BUSINESS ADDRESS:**
- **STREET 1:** 225 PICTORIA DRIVE
- **STREET 2:** SUITE 450
- **CITY:** CINCINNATI
- **STATE:** OH
- **ZIP:** 45246
- **BUSINESS PHONE:** 5135873447

**MAIL ADDRESS:**
- **STREET 1:** 225 PICTORIA DRIVE
- **STREET 2:** SUITE 450
- **CITY:** CINCINNATI
- **STATE:** OH
- **ZIP:** 45246

## Series and Classes Contracts Data

### Canterbury Portfolio Thermostat Fund (Series ID: S000053121)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| Institutional Shares | CAPTX         | C000167184 |
| Investor Shares      | CAPPX         | C000167185 |

---

## Series and Classes Contracts Data

### Canterbury Portfolio Thermostat Fund (Series ID: S000053121)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000167184 | Institutional Shares | CAPTX           |
| C000167185 | Investor Shares      | CAPPX           |

January 9, 2026

**Canterbury Portfolio Thermostat Fund**

**Institutional Shares – CAPTX**

**Investor Shares – CAPPX**

**A series of the Capitol Series Trust (the "Trust")**

**Supplement to the Prospectus and Statement of Additional Information ("SAI") dated August 28, 2025**

<u>Prospectus and SAI</u>

Canterbury Investment Management, LLC, the adviser to the Canterbury Portfolio Thermostat Fund (the "Fund"), has determined not to offer Investor Shares of the Fund for sale. Institutional Shares of the Fund continue to be offered for sale as detailed in the Prospectus and SAI. Effective immediately, all references to Investor Shares in the Fund's Prospectus and SAI are deleted in their entirety.

<u>Further Information</u>

For further information, please contact the Fund toll-free at 1-844-838-2121. You may also obtain additional copies of the Fund's Prospectus and SAI, free of charge, by writing to the Fund c/o Ultimus Fund Solutions, LLC at P.O. Box 46707, Cincinnati, Ohio 45246-0707, by calling the Fund toll-free at the number above, or by visiting the Fund's website at https://www.canterburygroup.com/mutualfund.

*Investors Should Retain this Supplement for Future Reference.*