<SEC-DOCUMENT>0001398344-25-013224-index.html : 20250716
<SEC-HEADER>0001398344-25-013224.hdr.sgml : 20250716
<ACCEPTANCE-DATETIME>20250716170342
ACCESSION NUMBER:		0001398344-25-013224
CONFORMED SUBMISSION TYPE:	SCHEDULE 13D/A
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20250716
DATE AS OF CHANGE:		20250716

SUBJECT COMPANY:	

	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:		SCHEDULE 13D/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-84331
		FILM NUMBER:		251128018

	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

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Bulldog Investors, LLP
		CENTRAL INDEX KEY:			0001504304
		ORGANIZATION NAME:           	
		EIN:				270926182
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13D/A

	BUSINESS ADDRESS:	
		STREET 1:		PARK 80 WEST - PLAZA TWO
		STREET 2:		250 PEHLE AVE. SUITE 708
		CITY:			SADDLE BROOK
		STATE:			NJ
		ZIP:			07663
		BUSINESS PHONE:		201 556-0092

	MAIL ADDRESS:	
		STREET 1:		PARK 80 WEST - PLAZA TWO
		STREET 2:		250 PEHLE AVE. SUITE 708
		CITY:			SADDLE BROOK
		STATE:			NJ
		ZIP:			07663

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Bulldog Investors, LLC
		DATE OF NAME CHANGE:	20130610

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Brooklyn Capital Management LLC
		DATE OF NAME CHANGE:	20101026
</SEC-HEADER>
<DOCUMENT>
<TYPE>SCHEDULE 13D/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
Document 1 - file: primary_doc.html

Document 1 - RAW XML: primary_doc.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-1
<SEQUENCE>2
<FILENAME>fp0094522-1_ex1.htm
<TEXT>
Document 2 - file: fp0094522-1_ex1.htm

</DOCUMENT>
</SEC-DOCUMENT>