Columbia Acorn Trust

11/06/2026 | Press release | Distributed by Public on 11/06/2026 09:20

Prospectus by Investment Company (Form 497)

Supplement dated November 6, 2026
to the Statement of Additional Information (SAI), as supplemented, dated October 1, 2026, for the following fund: 
Fund
Columbia Funds Series Trust II
 Columbia Emerging Markets Bond Fund
Effective immediately, the information under the subsection "The Investment Manager and Subadvisers - Portfolio Managers" in the "Investment Management and Other Services" section of the SAI for Columbia Emerging Markets Bond Fund (Emerging Markets Bond Fund) is hereby superseded and replaced with the following: 
Other Accounts Managed (Excluding the Fund)
Ownership
of Fund
Shares
Potential
Conflicts
of Interest
Structure
of
Compensation
Fund
Portfolio
Manager
Number
and Type
of Account*
Approximate
Total Net
Assets
Performance-
Based
Accounts**
For Funds with fiscal year ending August 31 - Information is as of August 31, 2025, unless otherwise noted
Emerging
Markets
Bond Fund
Christopher Cooke
1 RIC
6 PIVs
14 other
accounts
$396.96 million
$2.22 billion
$962.82 million
1 other
account
($259.36 M)
None(c)
Columbia
Management
Threadneedle
Ed Al-Hussainy(k)
4 RICs
2 PIVs
10 other
accounts
$7.77 billion
$346.74 million
$1.33 billion
None
None
Columbia
Management
Columbia
Management
*
RIC refers to a Registered Investment Company; PIV refers to a Pooled Investment Vehicle.
**
Number and type of accounts for which the advisory fee paid is based in part or wholly on performance and the aggregate net assets in those accounts.
(c)
The Fund is available for sale only in the U.S. The portfolio manager does not reside in the U.S. and therefore does not hold any shares of the Fund.
(k)
The portfolio manager began managing the Fund after its last fiscal year end; reporting information is provided as of September 30, 2026.
The rest of the section remains the same.
Shareholders should retain this Supplement for future reference.
SUP910_00_051_(11/26)
Columbia Acorn Trust published this content on November 06, 2026, and is solely responsible for the information contained herein. Distributed via EDGAR on November 06, 2026 at 15:21 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]