SCHEDULE 13G/A 0000897101-25-000034 0000769317 XXXXXXXX LIVE 1 Common Stock 09/30/2025 0000847411 MFS Investment Grade Municipal Trust 59318B108 111 Huntington Avenue Boston MA 02199 Rule 13d-1(b) Sit Investment Associates, Inc. b MN 0.00 389422.00 0.00 389422.00 389422.00 N 4.8 IA Sit Fixed Income Advisors II, LLC b DE 0.00 389422.00 0.00 389422.00 389422.00 N 4.8 IA MFS Investment Grade Municipal Trust 111 Huntington Avenue, Boston, Massachusetts 02199 Sit Investment Associates, Inc. Sit Fixed Income Advisors II, LLC c/o Sit Investment Associates, Inc. 80 South Eighth Street, Suite 3300 Minneapolis, MN 55402 Sit Investment Associates, Inc. Minnesota Corporation Sit Fixed Income Advisors II, LLC Delaware LLC N IA See response to item 9 on each cover page. See response to item 11 on each cover page. See response to item 5 on each cover page. See response to item 6 on each cover page. See response to item 7 on each cover page. See response to item 8 on each cover page. The ownership percentages reported are based on 8,199,220 shares of common stock outstanding as of May 31, 2025, as reported in the Issuer's Report on Form N-CSRS filed with the Securities Exchange Commission. Sit Investment Associates, Inc. ("SIA") is an investment adviser registered under section 203 of the Investment Advisers Act of 1940. Sit Fixed Income Advisors II, LLC ("SFI") is an investment adviser registered under section 203 of the Investment Advisers Act of 1940 and a subsidiary of SIA. SIA and SFI provide investment management services to client accounts ("Accounts"). In their roles as investment advisers SIA and SFI possess shared voting and investment power over securities of the Issuer described in this schedule 13G owned by the Accounts and may be deemed to be the beneficial owner of such shares of the Issuer owned by the Accounts. All securities reported in this schedule 13G are owned by the Accounts. Pursuant to Rule 13d-4 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), SIA and SFI disclaim beneficial ownership of such securities. N Y Y 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. Exhibit A - Joint Filing Agreement Sit Investment Associates, Inc. /s/ Paul E. Rasmussen 10/02/2025 Sit Fixed Income Advisors II, LLC /s/ Paul E. Rasmussen 10/02/2025