Supplement dated April 15, 2021
to the Prospectus and Summary Prospectus, as supplemented
(as applicable), of the following fund (the Fund):
| Fund
|
Prospectus and
Summary Prospectus Dated |
| Columbia
Acorn Trust |
|
| Columbia
Acorn European FundSM |
May 1,
2020 |
Effective May 1, 2021 (the
Effective Date), the portfolio manager information under the caption “Fund Management” in the Summary Prospectus and in the "Summary of the Fund" section of the Prospectus is hereby superseded and replaced with the
following:
| Portfolio
Manager |
|
Title
|
|
Role
with Fund |
|
Service
with the Fund Since |
| Stephen
Kusmierczak, CFA |
|
International
Team Head, Portfolio Manager and Analyst |
|
Portfolio
Manager or Co-Portfolio
Manager since inception in 2011 |
|
2011
|
| Sebastien
Pigeon, CFA |
|
Portfolio
Manager and Analyst |
|
Co-Portfolio
Manager
since May 2021 |
|
2015
|
On the Effective Date, the caption
“Portfolio Manager" and the information under that caption in the "Primary Service Providers” sub-section of the “More Information About the Fund" section of the Prospectus is hereby superseded and replaced with the
following:
Portfolio Managers
Information about the portfolio managers primarily responsible
for overseeing the Fund’s investments is shown below. The SAI provides additional information about the portfolio managers, including information relating to compensation, other accounts managed by the portfolio managers, and ownership by the
portfolio managers of Fund shares.
| Portfolio
Manager |
|
Title
|
|
Role
with Fund |
|
Service
with the Fund Since |
| Stephen
Kusmierczak, CFA |
|
International
Team Head, Portfolio Manager and Analyst |
|
Portfolio
Manager or Co-Portfolio
Manager since inception in 2011 |
|
2011
|
| Sebastien
Pigeon, CFA |
|
Portfolio
Manager and Analyst |
|
Co-Portfolio
Manager
since May 2021 |
|
2015
|
Mr. Kusmierczak has been associated with the Investment Manager or its predecessors as an investment professional since 2001, has been President or Co-President of the Trust since 2020, and was a Vice President of the Trust from
2011-2020. Mr. Kusmierczak began his investment career in 1999 and earned a B.A. from Bowdoin College and an M.P.A. from the Princeton School of Public and International Affairs.
Mr. Pigeon has been associated
with the Investment Manager as an investment professional since 2015 and has been a Vice President of the Trust since 2021. Mr. Pigeon began his investment career in 1997 and earned a B.A. from the Political Institute of Lyon and an M.B.A. from the
KEDGE Business School.
The rest of the section
remains unchanged.
Shareholders should retain this
Supplement for future reference.