Supplement dated March 10, 2017
to the Prospectuses and Summary Prospectuses (each as
supplemented) of each of the following Funds (each a
Fund and
together the Funds):
Fund
|
Prospectuses
and Summary Prospectuses Dated |
Columbia
Acorn Trust |
|
Columbia
Acorn Fund |
5/1/2016
|
Columbia
Acorn International |
5/1/2016
|
Columbia
Acorn USA |
5/1/2016
|
Columbia
Acorn International Select |
5/1/2016
|
Columbia
Acorn Select |
5/1/2016
|
Columbia
Thermostat Fund |
5/1/2016
|
Columbia
Acorn Emerging Markets Fund |
5/1/2016
|
Columbia
Acorn European Fund |
5/1/2016
|
Effective March 27, 2017, the
shares held by Class I shareholders will be exchanged for Class Y shares of the same Fund in a tax-free transaction with no impact on the fees and expenses paid by shareholders. Class I shares of the Funds will no longer be offered for sale.
Therefore, effective March 27, 2017, all information regarding Class I shares is hereby deleted from each Fund’s prospectus.
Effective April 10, 2017, the information beneath the caption
"Fees and Expenses of the Fund" in the Summary Prospectus and in the section entitled "Summary of the Fund" in the Prospectus is hereby revised to insert the following information:
An investor transacting in a class of Fund shares without any
front-end sales charge, contingent deferred sales charge, or other asset-based fee for sales or distribution may be required to pay a commission to the broker/financial intermediary for effecting such transactions. Such commissions are not reflected
in the tables or the example below.
Effective April 10,
2017, the information in the table under the heading "Minimum Initial Investment" in the Summary Prospectus and in the section entitled "Summary of the Fund" in each Fund's Prospectus is hereby revised, as applicable, for Class R4, Class
R5 and Class Y shares of the Funds as follows:
Minimum
Initial Investment
Class
|
Category
of eligible account |
For
accounts other than systematic investment plan accounts |
For
systematic investment plan accounts |
Classes
A, B*& C |
All
accounts other than IRAs |
$2,000
|
$100
|
IRAs
|
$1,000
|
$100
|
Classes
R & R5 |
All
eligible accounts |
None
|
N/A
|
Class
Y |
All
eligible accounts |
$0,
$1,000, $2,000 or $1 million depending upon the category of eligible investor |
$100
(for certain eligible investors) |
Classes
R4 & Z |
All
eligible accounts |
$0,
$1,000 or $2,000 depending upon the category of eligible investor |
$100
|
*
|
Class B shares are generally
closed to new and existing shareholders. |
The rest of the section remains unchanged.
Shareholders should retain this Supplement for future
reference.