American Century Growth Investor Class (TWCGX) 425 Business combination disclosure

                                   Filed by: American Century Mutual Funds, Inc.
                                                  Pursuant to Rule 425 under the
                                              Securities Act of 1933, as amended

                                               Subject Company: Kopp Funds, Inc.
                                       Investment Company Act File No. 811-08267




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This is a NOTIFICATION of the:

KOPP FUNDS 2007 Special Meeting of Shareholders.

MEETING DATE: January 12, 2007
RECORD DATE: November 13, 2006
CUSIP NUMBER: 500927108

ACCOUNT NUMBER: 3456789012345678901

CONTROL NUMBER: 012345678901

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