EDGAR Filing Documents for 0001193125-24-131675

Form 497J - Certification of no change in definitive materials:

SEC Accession No. 0001193125-24-131675

Filing Date

2024-05-06

Accepted

2024-05-06 11:40:27

Documents

Effectiveness Date

2024-05-06

Document Format Files

Seq	Description	Document	Type	Size
1	COLUMBIA ACORN TRUST	d799786d497j.htm	497J	4930
	Complete submission text file	0001193125-24-131675.txt		11444

Series and Classes/Contracts Information:

Existing
	Status	Name	Ticker Symbol
CIK 0000002110
Series S000009184		Columbia Acorn Fund
Class/Contract C000024954		Columbia Acorn Fund Class A	LACAX
Class/Contract C000024956		Columbia Acorn Fund Class C	LIACX
Class/Contract C000024957		Columbia Acorn Fund Institutional Class	ACRNX
Class/Contract C000122735		Columbia Acorn Fund Advisor Class	CEARX
Class/Contract C000122736		Columbia Acorn Fund Institutional 2 Class	CRBRX
Class/Contract C000122737		Columbia Acorn Fund Institutional 3 Class	CRBYX
Class/Contract C000251059		Columbia Acorn Fund Class S
	Status	Name	Ticker Symbol
CIK 0000002110
Series S000009185		Columbia Acorn International
Class/Contract C000024958		Columbia Acorn International Class A	LAIAX
Class/Contract C000024961		Columbia Acorn International Institutional Class	ACINX
Class/Contract C000097733		Columbia Acorn International Institutional 2 Class	CAIRX
Class/Contract C000122738		Columbia Acorn International Advisor Class	CCIRX
Class/Contract C000122739		Columbia Acorn International Institutional 3 Class	CCYIX
Class/Contract C000251060		Columbia Acorn International Class S
	Status	Name	Ticker Symbol
CIK 0000002110
Series S000009188		Columbia Acorn International Select
Class/Contract C000024970		Columbia Acorn International Select Class A	LAFAX
Class/Contract C000024973		Columbia Acorn International Select Institutional Class	ACFFX
Class/Contract C000122746		Columbia Acorn International Select Institutional 2 Class	CRIRX
Class/Contract C000122747		Columbia Acorn International Select Institutional 3 Class	CSIRX
Class/Contract C000122748		Columbia Acorn International Select Advisor Class	CILRX
Class/Contract C000251061		Columbia Acorn International Select Class S
	Status	Name	Ticker Symbol
CIK 0000002110
Series S000009189		Columbia Thermostat Fund
Class/Contract C000024974		Columbia Thermostat Fund Class A	CTFAX
Class/Contract C000024976		Columbia Thermostat Fund Class C	CTFDX
Class/Contract C000024977		Columbia Thermostat Fund Institutional Class	COTZX
Class/Contract C000122749		Columbia Thermostat Fund Advisor Class	CTORX
Class/Contract C000122750		Columbia Thermostat Fund Institutional 2 Class	CQTRX
Class/Contract C000122751		Columbia Thermostat Fund Institutional 3 Class	CYYYX
Class/Contract C000251062		Columbia Thermostat Class S
	Status	Name	Ticker Symbol
CIK 0000002110
Series S000033621		Columbia Acorn European Fund
Class/Contract C000103324		Columbia Acorn European Fund Class A	CAEAX
Class/Contract C000103327		Columbia Acorn European Fund Institutional Class	CAEZX
Class/Contract C000144049		Columbia Acorn European Fund Advisor Class	CLOFX

Mailing Address 71 S. WACKER DRIVE, SUITE 2500 CHICAGO IL 60606

Business Address 71 S. WACKER DRIVE, SUITE 2500 CHICAGO IL 60606 3126349200

COLUMBIA ACORN TRUST (Filer) CIK: 0000002110 (see all company filings)