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Filing Detail
Form 425 - Prospectuses and communications, business combinations:
SEC Accession No. 0001193125-10-261878
Filing Date
2010-11-16
Accepted
2010-11-16 15:28:58
Documents
2

Document Format Files

Seq Description Document Type Size
1 COLUMBIA ACORN TRUST d425.htm 425 9500
2 GRAPHIC g121064g22f11.jpg GRAPHIC 8302
  Complete submission text file 0001193125-10-261878.txt   26411

Series and Classes/Contracts Information:

Merger
  Status Name Ticker Symbol
CIK 0000002110 acquiring    
Series S000009185   Columbia Acorn International
CIK 0001140531 target    
Series S000003412   RiverSource Partners International Select Growth Fund
Class/Contract C000009427   RiverSource Partners International Select Growth Fund Class C RIACX
Class/Contract C000009429   RiverSource Partners International Select Growth Fund Class A AXGAX
Class/Contract C000009430   RiverSource Partners International Select Growth Fund Class B APIBX
Class/Contract C000009431   RiverSource Partners International Select Growth Fund Class I AIGGX
Class/Contract C000043069   RiverSource Partners International Select Growth Fund Class R4
Class/Contract C000076526   RiverSource Partners International Select Growth Fund Class R RISRX
Class/Contract C000076527   RiverSource Partners International Select Growth Fund Class R5 RISSX
CIK 0001140531    
Series S000003415   RiverSource Partners International Small Cap Fund
Class/Contract C000009442   RiverSource Partners International Small Cap Fund Class C RISLX
Class/Contract C000009443   RiverSource Partners International Small Cap Fund Class I RPSCX
Class/Contract C000009445   RiverSource Partners International Small Cap Fund Class A AISCX
Class/Contract C000009446   RiverSource Partners International Small Cap Fund Class B APNBX
Class/Contract C000043072   RiverSource Partners International Small Cap Fund Class R4
Class/Contract C000082453   RiverSource Partners International Small Cap Fund Class R RPSRX
Class/Contract C000082454   RiverSource Partners International Small Cap Fund Class R5 RPSSX
Mailing Address 227 W MONROE STE 3000 CHICAGO IL 60606
Business Address 227 W MONROE STE 3000 CHICAGO IL 60606 3126349200
COLUMBIA ACORN TRUST (Filed by) CIK: 0000002110 (see all company filings)

IRS No.: 362692100 | State of Incorp.: MA | Fiscal Year End: 1231
Type: 425

Mailing Address 50606 AMERIPRISE FINANCIAL CENTER H27/5228 MINNEAPOLIS MN 55474
Business Address 50606 AMERIPRISE FINANCIAL CENTER H27/5228 MINNEAPOLIS MN 55474 61-2671-4321
RIVERSOURCE INTERNATIONAL MANAGERS SERIES, INC. (Subject) CIK: 0001140531 (see all company filings)

IRS No.: 412009895 | State of Incorp.: MN | Fiscal Year End: 1031
Type: 425 | Act: 34 | File No.: 811-10427 | Film No.: 101196408