X0202 SCHEDULE 13G/A 0000835271 XXXXXXXX LIVE 5 Remarketable Variable Rate MuniFund Term Preferred Shares, Series 2051 05/01/2026 0000809844 MFS High Yield Municipal Trust 59318E607 111 Huntington Ave, 24th Floor Boston MA 02199 Rule 13d-1(b) JPMorgan Chase Bank, National Association X1 0 330 330 0 330 N 100 BK MFS High Yield Municipal Trust 111 Huntington Avenue, 24th Floor Boston, MA 02199 JPMorgan Chase Bank, National Association ("JPM") 1111 Polaris Parkway Columbus, OH 43240 United States of America N BK 330 100%* * Represents percentage ownership of RVMTP Shares as a percentage of all preferred shares outstanding and is calculated based on information suppled by the issuer. 0 330** ** On July 20, 2021 JPM assigned certain preferred class voting rights on the RVMTP Shares to a voting trust (the "Voting Trust") created pursuant to the Voting Trust Agreement, dated July 20, 2021 among JPM, Glass, Lewis & Co., LLC, as trustee (the "Voting Trustee") and as voting consultant (the "Voting Consultant"). Voting and consent rights on the RVMTP Shares not assigned to the Voting Trust have been retained by JPM. The Voting Trust provides that with respect to voting or consent matters relating to the voting rights assigned to the Voting Trust, the Voting Consultant analyzes such voting or consent matters and makes a recommendation to the Voting Trustee on voting or consenting. The Voting Trustee is obligated to follow any such recommendations of the Voting Consultant when providing a vote or consent. 330 0 N N On September 5, 2024 JPM deposited the 510 RVMTP Shares into a tender option bond trust (a "TOB") named the J.P. Morgan Putters/Drivers, Series 5074 Trust. The TOB has title to 100% of the RVMTP Shares but does not have the power to dispose or direct the disposition of the RVMTP Shares. No voting rights on the RVMTP Shares have been transferred to the TOB and voting rights on the RVMTP Shares are retained by JPM and the Voting Trust as described in Item 4. Y Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11. JPMorgan Chase Bank, National Association /s/ Adrian Budischak 05/05/2026