N-PX RMIC LIVE 0000002110 XXXXXXXX false false N-1A 06/30/2026 S000009184 true S000009185 true S000009188 true S000009189 true S000033621 true YEAR 2026 Columbia Acorn Trust 6173859536

290 Congress Street Boston MA 02210

Ryan C. Larrenaga

290 Congress Street Boston MA 02210

FUND VOTING REPORT 811-01829 549300DX0CWIN8VE1908 N 0 5 S000009184 Columbia Acorn Fund 549300X3KJ5X2R54O387 S000009185 Columbia Acorn International 5493004K6O04MY5NT292 S000009188 Columbia Acorn International Select 549300KTP8INZROJV026 S000009189 Columbia Thermostat Fund 549300EN4NJA2NPKY702 S000033621 Columbia Acorn European Fund 5493000YCDHFU2BTMI80 Columbia Acorn Trust /s/ Michael G. Clarke /s/ Michael G. Clarke President and Principal Executive Officer 08/07/2026