<SEC-DOCUMENT>0001145549-21-042076-index.html : 20210726
<SEC-HEADER>0001145549-21-042076.hdr.sgml : 20210726
<ACCEPTANCE-DATETIME>20210726123436
ACCESSION NUMBER:		0001145549-21-042076
CONFORMED SUBMISSION TYPE:	NPORT-P
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20210531
FILED AS OF DATE:		20210726
PERIOD START:           	20220228

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:		NPORT-P
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-09645
		FILM NUMBER:		211113370

	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>
<EXISTING-SERIES-AND-CLASSES-CONTRACTS>
<SERIES>
<OWNER-CIK>0001097519
<SERIES-ID>S000010826
<SERIES-NAME>Columbia Mid Cap Index Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000030054
<CLASS-CONTRACT-NAME>Columbia Mid Cap Index Fund Class A
<CLASS-CONTRACT-TICKER-SYMBOL>NTIAX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000030055
<CLASS-CONTRACT-NAME>Columbia Mid Cap Index Fund Institutional Class
<CLASS-CONTRACT-TICKER-SYMBOL>NMPAX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000122594
<CLASS-CONTRACT-NAME>Columbia Mid Cap Index Fund Institutional 2 Class
<CLASS-CONTRACT-TICKER-SYMBOL>CPXRX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000173200
<CLASS-CONTRACT-NAME>Columbia Mid Cap Index Fund Institutional 3 Class
<CLASS-CONTRACT-TICKER-SYMBOL>CMDYX
</CLASS-CONTRACT>
</SERIES>
</EXISTING-SERIES-AND-CLASSES-CONTRACTS>
</SERIES-AND-CLASSES-CONTRACTS-DATA>
</SEC-HEADER>
<DOCUMENT>
<TYPE>NPORT-P
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
Document 1 - file: primary_doc.html

Document 1 - RAW XML: primary_doc.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>NPORT-EX
<SEQUENCE>2
<FILENAME>nportpoi_635.htm
<TEXT>
Document 2 - file: nportpoi_635.htm

</DOCUMENT>
</SEC-DOCUMENT>