AMP Ameriprise Financial Inc

Five Columbia Management funds have received 2012 Lipper Fund Awards as top-performing mutual funds in their respective Lipper categories as of December 31, 2011:

• Columbia Acorn International Fund (Z shares)

International Small/Mid-Cap Growth category (41 funds) – 10 years

• Columbia California Intermediate Municipal Bond Fund (Z shares)

California Intermediate Municipal Debt category (32 funds) – 5 years

• Columbia European Equity Fund (I shares)

European Region category (68 funds) – 5 years

• Columbia Select Large Cap Value Fund (R5 shares)

Large Cap Value category (402 funds) – 5 years

• Columbia U.S. Government Mortgage Fund (I shares)

U.S. Mortgage category (78 funds) – 3 years

A Lipper Fund Award is presented to one fund in each Lipper category for achieving the strongest trend of consistent risk-adjusted performance versus category peers over three, five or 10 years for the period ending December 31, 2011.

“This recognition from Lipper is a testament to the disciplined investment processes and in-depth research of our investment management teams,” said Colin Moore, Chief Investment Officer. “Our goal is to continue delivering consistent, competitive performance for our institutional clients, financial advisors and individual investors.”

About Columbia Management:Columbia Management is the eighth largest manager of long-term mutual fund assets with $326 billion under management as of December 31, 2011. Columbia Management is a subsidiary of Ameriprise Financial, Inc. (NYSE: AMP). For more information, visit columbiamangement.com.

About Ameriprise Financial:At Ameriprise Financial, we have been helping people feel confident about their financial future for over 115 years. With outstanding asset management, advisory and insurance capabilities and a nationwide network of 10,000 financial advisors, we have the strength and expertise to serve the full range of individual and institutional investors' financial needs. For more information, or to find an Ameriprise financial advisor, visit ameriprise.com.

Performance Chart

                Average annual total returns as of 12/31/11   1 year   3 Year   5 Year   10 Year   Since Inception   Inception

Date

  Total Net Annual Operating Expenses  

Maximum Front-end sales charge

Columbia Acorn International

(Z shares)

  -14.06   16.76   0.20   10.27   10.63   09/23/1992   0.98%   -- Columbia California Intermediate Municipal Bond Fund (Z Shares)   10.49   7.70   5.03   --   4.24   08/19/2002   0.48%   -- Columbia European Equity1

(I shares2)

  -11.32   12.33   -0.18   5.58   1.78   07/15/2004*   1.00%   -- Columbia Select Large Cap Value

(R5 shares2)

  -0.62   14.99   1.03   3.92   6.14   11/30/2001   0.98%   -- Columbia U.S. Government Mortgage1

(I shares2)

  9.20   10.89   6.98   --   5.69   3/4/2004*   0.48%   --  

Source: Lipper, as of 12/31/11.

1 The returns shown for periods prior to each fund’s share class inception date include the returns of the oldest share class of the fund, adjusted to reflect higher class-related operating expenses, as applicable. In addition, the returns shown include the returns of any predecessor to the fund. Please visit columbiamanagement.com/institutional/strategies-and-products/appended-performance for more information.

2 Class Z, I and R5 shares are available only to eligible investors. See the prospectus for eligibility requirements and other important information.

*The since inception returns shown are since fund inception, and for newer share classes, include the returns of the fund’s oldest share class, adjusted to reflect higher class-related operating expenses, as applicable.

The performance information shown represents past performance and is not a guarantee of future results. The investment return and principal value of an investment will fluctuate so that the shares, when redeemed, may be worth more or less than their original cost. Current performance may be lower or higher than the performance information shown. You may obtain performance information current to the most recent month-end by visiting riversource.com/funds.

The investment manager and certain of its affiliates have contractually (for at least the current fiscal year) and/or voluntarily agreed to waive certain fees and/or to reimburse certain expenses of the Fund, as described in the Fund's prospectus, unless sooner terminated at the sole discretion of the Fund's board. Net expense ratios reflect this fee waiver/expense cap. Fee waivers/expense caps would limit the impact that any decrease in assets would have on net expense ratios in the current fiscal year. Voluntary waivers/reimbursement arrangements, if any, may be discontinued at any time.

The Lipper Fund Awards are part of the Thomson Reuters Awards for Excellence, a global family of awards that celebrate exceptional performance throughout the professional investment community. The Thomson Reuters Awards for Excellence recognize the world's top funds, fund management firms, sell-side firms, research analysts, and investor relations teams. The Thomson Reuters Awards for Excellence also include the Extel Survey Awards, the StarMine Analyst Awards, and the StarMine Broker Rankings. For more information, please contact markets.awards@thomsonreuters.com or visit excellence.thomsonreuters.com.

Investors should consider the investment objectives, risks, charges and expenses of a mutual fund carefully before investing. For a free prospectus which contains this and other important information about the funds, please visit columbiamanagement.com. The prospectus should be read carefully before investing.

Investment products, including shares of mutual funds, are not federally or FDIC-insured, are not deposits or obligations of, or guaranteed by any financial institution, and involve investment risks including possible loss of principal and fluctuation in value. Investing in certain funds involves special risk, such as those related to investments in foreign securities, small- and mid-capitalization stocks, fixed income securities (especially high-yield securities), and funds which focus their investments in a particular sector, such as real estate, technology, and precious metals. See each fund’s prospectus for specific risks associated with the Fund.

Columbia Funds are distributed by Columbia Management Investment Distributors, Inc., member FINRA, and managed by Columbia Management Investment Advisers, LLC.

© 2012 Columbia Management Investment Advisers, LLC. All rights reserved.