Prospectus Supplement — September 30, 2011

to the Prospectuses listed below, each as supplemented

Fund	Prospectuses Dated
Columbia Seligman Global Technology Fund	12/30/2010

Effective September 30, 2011, the Fund compares its performance to the net dividends (Net) versions of the Morgan Stanley Capital International (MSCI) World IT Index and the MSCI World Index rather than to the gross dividends (Gross) versions currently reflected in the Fund’s prospectuses. Accordingly, the average annual total returns tables in the “Past Performance” sections of the Fund’s prospectuses are hereby replaced with the following and should be retained with the current prospectus for the Fund for future reference.

Columbia Seligman Global Technology Fund | Class Z Shares

The average annual total returns table in the “Past Performance” section of the prospectus for Class Z shares is hereby replaced with the following:

Average Annual Total Returns (without sales charge) (for periods ended December 31, 2010)

Average Annual Total Returns Columbia Seligman Global Technology Fund Class Z Shares	Column	Label		Index No Deduction for Fees, Expenses, Taxes [Text]	1 year	5 years	10 years
before taxes Class A	Columbia Seligman Global Technology Fund:	Class A — before taxes	[1]		15.37%	8.95%	2.17%
after taxes on distributions Class A	Columbia Seligman Global Technology Fund:	Class A — after taxes on distributions	[1]		15.21%	8.92%	2.16%
after taxes on distributions and redemption of fund shares Class A	Columbia Seligman Global Technology Fund:	Class A — after taxes on distributions and redemption of fund shares	[1]		10.10%	7.77%	1.87%
Morgan Stanley Capital International (MSCI) World IT Index (Net)		Morgan Stanley Capital International (MSCI) World IT Index (Net)	[2]	(reflects reinvested dividends net of withholding taxes but reflects no deduction for fees, expenses or other taxes)	10.50%	3.52%	(1.98%)
MSCI World IT Index (Gross)		MSCI World IT Index (Gross)	[2]	(reflects no deduction for fees, expenses or taxes)	10.81%	3.79%	(1.79%)
MSCI World Index (Net)		MSCI World Index (Net)	[2]	(reflects reinvested dividends net of withholding taxes but reflects no deduction for fees, expenses or other taxes)	11.76%	2.43%	2.31%
MSCI World Index (Gross)		MSCI World Index (Gross)	[2]	(reflects no deduction for fees, expenses or taxes)	12.34%	2.99%	2.82%
Lipper Global Science and Technology Funds Index		Lipper Global Science and Technology Funds Index		(reflects no deduction for fees or taxes)	23.41%	7.50%	0.07%

Fund performance information prior to March 7, 2011 represents that of the Fund as a series of Seligman Global Fund Series, Inc., a Maryland corporation. The Fund was reorganized into a series of Columbia Funds Series Trust II, a Massachusetts business trust, on that date.

[1] The returns shown are for Class A shares without the applicable front-end sales charge. Class Z shares, which are sold without a sales charge, would have substantially similar annual returns as Class A shares because the classes of shares invest in the same portfolio of securities and would differ only to the extent that the classes do not have the same expenses. Class A share returns have not been adjusted to reflect differences in class-related expenses. If differences in class-related expenses were reflected (i.e., if expenses of Class Z shares were reflected in the Class A share returns), the returns shown for Class A shares for all periods would be higher.

[2] On September 30, 2011, the MSCI World IT Index (Net) and the MSCI World Index (Net) replaced the MSCI World IT Index (Gross) and the MSCI World Index (Gross) as the Fund's benchmarks. The Fund's investment manager made this recommendation to the Fund's Board because the investment manager believes that the Net versions better reflect how dividends paid to the Fund on foreign securities generally are treated for tax purposes and, therefore, provide a more appropriate basis for comparing the Fund's performance. Information on both versions of each index will be included for a one-year transition period. Thereafter, only the Net versions will be included.