<SEC-DOCUMENT>9999999995-21-003780-index.html : 20211006
<SEC-HEADER>9999999995-21-003780.hdr.sgml : 20211006
<ACCEPTANCE-DATETIME>20211006001544
ACCESSION NUMBER:		9999999995-21-003780
CONFORMED SUBMISSION TYPE:	EFFECT
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20211005
DATE AS OF CHANGE:		20211006
EFFECTIVENESS DATE:		20211005

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			COLUMBIA FUNDS SERIES TRUST
		CENTRAL INDEX KEY:			0001097519
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0331

	FILING VALUES:
		FORM TYPE:		EFFECT
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-258930
		FILM NUMBER:		211308760

	BUSINESS ADDRESS:	
		STREET 1:		290 CONGRESS STREET
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02210
		BUSINESS PHONE:		800-345-6611

	MAIL ADDRESS:	
		STREET 1:		290 CONGRESS STREET
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02210

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	NATIONS FUNDS TRUST
		DATE OF NAME CHANGE:	19991022
<SERIES-AND-CLASSES-CONTRACTS-DATA>
<MERGER-SERIES-AND-CLASSES-CONTRACTS>
<MERGER>
<ACQUIRING-DATA>
CENTRAL INDEX KEY:			0001097519
<SERIES>
<SERIES-ID>S000010774
<SERIES-NAME>Columbia Capital Allocation Moderate Aggressive Portfolio
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000029775
<CLASS-CONTRACT-NAME>Columbia Capital Allocation Moderate Aggressive Portfolio Class A
<CLASS-CONTRACT-TICKER-SYMBOL>NBIAX
</CLASS-CONTRACT>
</SERIES>
</ACQUIRING-DATA>
<TARGET-DATA>
CENTRAL INDEX KEY:			0000889366
<SERIES>
<SERIES-ID>S000041361
<SERIES-NAME>BMO Balanced Allocation Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000128314
<CLASS-CONTRACT-NAME>Class Y
<CLASS-CONTRACT-TICKER-SYMBOL>BGRYX
</CLASS-CONTRACT>
</SERIES>
</TARGET-DATA>
</MERGER>
<MERGER>
<ACQUIRING-DATA>
CENTRAL INDEX KEY:			0001097519
<SERIES>
<SERIES-ID>S000010774
<SERIES-NAME>Columbia Capital Allocation Moderate Aggressive Portfolio
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000029778
<CLASS-CONTRACT-NAME>Columbia Capital Allocation Moderate Aggressive Portfolio Class R
<CLASS-CONTRACT-TICKER-SYMBOL>CLBRX
</CLASS-CONTRACT>
</SERIES>
</ACQUIRING-DATA>
<TARGET-DATA>
CENTRAL INDEX KEY:			0000889366
<SERIES>
<SERIES-ID>S000041361
<SERIES-NAME>BMO Balanced Allocation Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000128312
<CLASS-CONTRACT-NAME>Class R3
<CLASS-CONTRACT-TICKER-SYMBOL>BGRRX
</CLASS-CONTRACT>
</SERIES>
</TARGET-DATA>
</MERGER>
<MERGER>
<ACQUIRING-DATA>
CENTRAL INDEX KEY:			0001097519
<SERIES>
<SERIES-ID>S000010774
<SERIES-NAME>Columbia Capital Allocation Moderate Aggressive Portfolio
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000122566
<CLASS-CONTRACT-NAME>Columbia Capital Allocation Moderate Aggressive Portfolio Advisor Class
<CLASS-CONTRACT-TICKER-SYMBOL>CGBRX
</CLASS-CONTRACT>
</SERIES>
</ACQUIRING-DATA>
<TARGET-DATA>
CENTRAL INDEX KEY:			0000889366
<SERIES>
<SERIES-ID>S000041361
<SERIES-NAME>BMO Balanced Allocation Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000128315
<CLASS-CONTRACT-NAME>Class I
<CLASS-CONTRACT-TICKER-SYMBOL>BGRHX
</CLASS-CONTRACT>
</SERIES>
</TARGET-DATA>
</MERGER>
<MERGER>
<ACQUIRING-DATA>
CENTRAL INDEX KEY:			0001097519
<SERIES>
<SERIES-ID>S000010774
<SERIES-NAME>Columbia Capital Allocation Moderate Aggressive Portfolio
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000129843
<CLASS-CONTRACT-NAME>Columbia Capital Allocation Moderate Aggressive Portfolio Institutional 3 Class
<CLASS-CONTRACT-TICKER-SYMBOL>CPHNX
</CLASS-CONTRACT>
</SERIES>
</ACQUIRING-DATA>
<TARGET-DATA>
CENTRAL INDEX KEY:			0000889366
<SERIES>
<SERIES-ID>S000041361
<SERIES-NAME>BMO Balanced Allocation Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000128313
<CLASS-CONTRACT-NAME>Class R6
<CLASS-CONTRACT-TICKER-SYMBOL>BGRQX
</CLASS-CONTRACT>
</SERIES>
</TARGET-DATA>
</MERGER>
</MERGER-SERIES-AND-CLASSES-CONTRACTS>
</SERIES-AND-CLASSES-CONTRACTS-DATA>
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<DOCUMENT>
<TYPE>EFFECT
<SEQUENCE>1
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<TEXT>
Document 1 - file: primary_doc.html

Document 1 - RAW XML: primary_doc.xml

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