N-PX RMIC LIVE 0001330967 XXXXXXXX false false N-1A 06/30/2026 S000076470 true S000104920 true YEAR 2026 MFS SERIES TRUST XII 617-954-5000

111 HUNTINGTON AVENUE BOSTON MA 02199

Christopher R. Bohane Massachusetts Financial Services Company

111 Huntington Avenue Boston MA 02199

FUND NOTICE REPORT 811-21780 549300VVIIPRJRW6FR46 Y On behalf of MFS Core Bond Fund and MFS Lifetime 2070 Fund (the "funds"), each a series of MFS Series Trust XII, there is no proxy voting activity for the funds, as the funds did not hold any votable positions during the reporting period. The reporting period for the MFS Lifetime 2070 Fund started May 27, 2026, the date the fund commenced its investment operations. 2 S000076470 MFS Core Bond Fund 5493007VGRIDZH30JY65 S000104920 MFS Lifetime 2070 Fund 2549001QM3Y4O14TWW19 MFS SERIES TRUST XII David DiLorenzo David DiLorenzo President and Principal Executive Officer 08/26/2026