UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Notice of Effectiveness
Effectiveness Date:	October 5, 2021 11:50 A.M.

Form:

N-14

CIK: 0001097519 Company Name: COLUMBIA FUNDS SERIES TRUST File Number: 333-258930 SERIES/CLASSES (CONTRACTS) MERGERS CIK Series ID Class/Contract Name Acquiring: 0001097519 COLUMBIA FUNDS SERIES TRUST S000010774 Columbia Capital Allocation Moderate Aggressive Portfolio C000029775 Columbia Capital Allocation Moderate Aggressive Portfolio Class A Target: 0000889366 BMO FUNDS, INC. S000041361 BMO Balanced Allocation Fund C000128314 Class Y CIK Series ID Class/Contract Name Acquiring: 0001097519 COLUMBIA FUNDS SERIES TRUST S000010774 Columbia Capital Allocation Moderate Aggressive Portfolio C000029778 Columbia Capital Allocation Moderate Aggressive Portfolio Class R Target: 0000889366 BMO FUNDS, INC. S000041361 BMO Balanced Allocation Fund C000128312 Class R3 CIK Series ID Class/Contract Name Acquiring: 0001097519 COLUMBIA FUNDS SERIES TRUST S000010774 Columbia Capital Allocation Moderate Aggressive Portfolio C000122566 Columbia Capital Allocation Moderate Aggressive Portfolio Advisor Class Target: 0000889366 BMO FUNDS, INC. S000041361 BMO Balanced Allocation Fund C000128315 Class I CIK Series ID Class/Contract Name Acquiring: 0001097519 COLUMBIA FUNDS SERIES TRUST S000010774 Columbia Capital Allocation Moderate Aggressive Portfolio C000129843 Columbia Capital Allocation Moderate Aggressive Portfolio Institutional 3 Class Target: 0000889366 BMO FUNDS, INC. S000041361 BMO Balanced Allocation Fund C000128313 Class R6