# EDGAR Filing Document

**Accession Number:** 0000809844
**File Stem:** 0000930413-26-000960
**Filing Date:** 2026-4
**Character Count:** 4228
**Document Hash:** 0d9883c27b94c015e0425539def0f490
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000930413-26-000960.hdr.sgml**: 20260401

**ACCESSION NUMBER**: 0000930413-26-000960

**CONFORMED SUBMISSION TYPE**: N-23C-2

**PUBLIC DOCUMENT COUNT**: 3

**CONFORMED PERIOD OF REPORT**: 20260401

**FILED AS OF DATE**: 20260401

**DATE AS OF CHANGE**: 20260401

**EFFECTIVENESS DATE**: 20260401

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** MFS HIGH YIELD MUNICIPAL TRUST
- **CENTRAL INDEX KEY:** 0000809844

**ORGANIZATION NAME:**
- **EIN:** 042950868
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 1130

**FILING VALUES:**
- **FORM TYPE:** N-23C-2
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 817-01077
- **FILM NUMBER:** 26828661

**BUSINESS ADDRESS:**
- **STREET 1:** 111 HUNTINGTON AVENUE
- **STREET 2:** 24TH FLOOR
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02199
- **BUSINESS PHONE:** 617-954-5000

**MAIL ADDRESS:**
- **STREET 1:** 111 HUNTINGTON AVENUE
- **STREET 2:** 24TH FLOOR
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02199

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** COLONIAL MUNICIPAL INCOME TRUST
- **DATE OF NAME CHANGE:** 19920703

As filed with the Securities and Exchange Commission effective April 1, 2026

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

RULE 23C-2 NOTICE OF INTENTION TO REDEEM SECURITIES

of

**MFS High Yield Municipal Trust**

**111 Huntington Avenue, Boston, Massachusetts 02199 (Address of Principal Executive Offices)**

Registrant's Telephone Number, including Area Code: 617-954-5822 <br> Christopher R. Bohane, Massachusetts Financial Services Company <br> 111 Huntington Avenue, Boston, Massachusetts 02199<br> (Name and Address of Agent for Service)

under the

Investment Company Act of 1940, as amended

Investment Company Act File No. 811-04992

![](image_005.gif)

The undersigned registered closed-end investment company hereby notifies the Securities and Exchange Commission that it intends to redeem securities of which it is the issuer, as set forth below in accordance with the requirements of Rule 23c-2 under the Investment Company Act of 1940, as amended. Such redemption remains subject to the issuance of a formal notice of redemption, which will contain the definitive terms and timetable of redemption.

&nbsp;&nbsp;&nbsp;&nbsp;1. Title
 of the class of securities of MFS High Yield Municipal
 Trust (the "Fund") to be redeemed:

Remarketable Variable Rate MuniFund Term Preferred Shares, Series 2051 (CUSIP # 59318E607) ("RVMTP Shares").

&nbsp;&nbsp;&nbsp;&nbsp;2. Date
 on which the securities are to be called or redeemed:

May 1, 2026

No notices of redemption have yet been distributed, and the redemptions may be effected on a later date, or not at all, due to market conditions or otherwise.

3. The applicable provisions of the governing instrument pursuant to which the securities are to be called or redeemed:

The RVMTP Shares are to be redeemed pursuant to Section 2.6(c) of the Fund's Statement Establishing and Fixing the Rights and Preferences of Remarketable Variable Rate MuniFund Term Preferred Shares.

4. The principal amount or number of shares and the basis upon which the securities to be redeemed are to be selected:

The Fund intends to redeem up to 180 shares of the outstanding RVMTP Shares, of which there are 510 outstanding shares, but may redeem less.

![](image_006.gif)

<u>Notice</u>:

The Fund's Agreement and Declaration of Trust is on file with the Secretary of The Commonwealth of Massachusetts. This instrument is executed on behalf of the Fund by an officer of the Fund, as an officer of the Fund, and not individually, and the obligations imposed upon the Fund by this instrument, if any, are not binding upon any of the Fund's officers, trustees or shareholders individually, but are binding only upon the assets and properties of the Fund.

SIGNATURE

Pursuant to the requirement of Rule 23c-2 of the Investment Company Act of 1940, as amended, the registrant has duly caused this Notice of Intention to Redeem Securities to be signed on its behalf by the undersigned on this 1st day of April 2026.

MFS HIGH YIELD MUNICIPAL TRUST

By: /s/ WILLIAM B. WILSON

Name: William B. Wilson

Title: Assistant Secretary and Assistant Clerk