Form N-CSR - Certified Shareholder Report:
SEC Accession No. 0001145549-25-028840
Filing Date
2025-05-05
Accepted
2025-05-05 13:05:01
Documents
45
Period of Report
2025-02-28
Effectiveness Date
2025-05-05

Document Format Files

Seq Description Document Type Size
1 N-CSR 8dd841a75f2cfdb.htm   iXBRL N-CSR 2249271
5 CODE_OF_ETHICS Code_of_Ethics.htm EX-99.CODE ETH 67683
6 302_CERTIFICATION 302_Certification.htm EX-99.CERT 32231
7 906_CERTIFICATION 906_Certification.htm EX-99.906 CERT 8037
9 GRAPHIC chartimages_3588900.jpg GRAPHIC 74448
10 GRAPHIC chartimages_3588903.jpg GRAPHIC 133253
11 GRAPHIC chartimages_3588904.jpg GRAPHIC 19860
12 GRAPHIC chartimages_3588912.jpg GRAPHIC 132645
13 GRAPHIC chartimages_3588913.jpg GRAPHIC 19860
14 GRAPHIC chartimages_3588921.jpg GRAPHIC 74448
15 GRAPHIC chartimages_3588930.jpg GRAPHIC 74448
16 GRAPHIC chartimages_3588933.jpg GRAPHIC 133096
17 GRAPHIC chartimages_3588934.jpg GRAPHIC 19860
18 GRAPHIC chartimages_3588942.jpg GRAPHIC 132451
19 GRAPHIC chartimages_3588943.jpg GRAPHIC 19860
20 GRAPHIC chartimages_3588951.jpg GRAPHIC 74448
21 GRAPHIC images_1902.jpg GRAPHIC 24911
22 GRAPHIC images_1913.jpg GRAPHIC 109128
23 GRAPHIC img302d731e1.jpg GRAPHIC 250062
24 GRAPHIC imgbb569a9f2.jpg GRAPHIC 38453
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31 GRAPHIC gas3zpu5786kk1lfpto42.jpg GRAPHIC 49493
32 GRAPHIC gbjbf9ao2ch211q9937qj.jpg GRAPHIC 729
  Complete submission text file 0001145549-25-028840.txt   7145360

Data Files

Seq Description Document Type Size
2 EX-101.DEF cik0001097519-20250228_def.xml EX-101.DEF 10712
3 EX-101.LAB cik0001097519-20250228_lab.xml EX-101.LAB 16231
4 EX-101.PRE cik0001097519-20250228_pre.xml EX-101.PRE 22546
8 EX-101.SCH cik0001097519-20250228.xsd EX-101.SCH 7531
48 EXTRACTED XBRL INSTANCE DOCUMENT 8dd841a75f2cfdb_htm.xml XML 323287

Series and Classes/Contracts Information:

Existing
  Status Name Ticker Symbol
CIK 0001097519      
Series S000010826   Columbia Mid Cap Index Fund
Class/Contract C000030054   Columbia Mid Cap Index Fund Class A NTIAX
Class/Contract C000030055   Columbia Mid Cap Index Fund Institutional Class NMPAX
Class/Contract C000122594   Columbia Mid Cap Index Fund Institutional 2 Class CPXRX
Class/Contract C000173200   Columbia Mid Cap Index Fund Institutional 3 Class CMDYX
Mailing Address 290 CONGRESS STREET BOSTON MA 02210
Business Address 290 CONGRESS STREET BOSTON MA 02210 800-345-6611
COLUMBIA FUNDS SERIES TRUST (Filer) CIK: 0001097519 (see all company filings)

EIN.: 000000000 | State of Incorp.: DE | Fiscal Year End: 0331
Type: N-CSR | Act: 40 | File No.: 811-09645 | Film No.: 25912020