SCHEDULE 13G/A 0001447578 XXXXXXXX LIVE 1 Common Shares, $0.001 par value 06/30/2025 0001864290 Pioneer Municipal High Income Opportunities Fund, Inc. 723760104 60 State Street 5th Floor Boston MA 02109 Rule 13d-1(b) RIVERNORTH CAPITAL MANAGEMENT, LLC DE 752523.15 0.00 752523.15 0.00 752523.15 N 4.46 IA Pioneer Municipal High Income Opportunities Fund, Inc. 60 State Street, 5th Floor, Boston, MA 02109 RiverNorth Capital Management, LLC 360 S. Rosemary Avenue, Ste. 1420 West Palm Beach, Florida 33401 Delaware N IA 752,523 4.46 752,523 0 752,523 0 N Y N Other persons have the right to receive the proceeds froim the sale of the securities reported herein. N Not applicable. N Not applicable. N Not applicable. 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. RIVERNORTH CAPITAL MANAGEMENT, LLC /s/ Marcus Collins 08/14/2025 After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.