FMI Common Stock Fund Investor Class

The fund invests mainly in small- to medium-capitalization companies (namely, companies with less than $7 billion market capitalization at the time of initial purchase) listed or traded on a national securities exchange or on a national securities association. Under normal market conditions, the fund invests 80% of its net assets in common stocks, including for purposes of this limitation common stocks of foreign companies which the fund principally invests in through ADRs or American Depositary Shares ADSs. ADRs and ADSs are dollar-denominated securities of foreign issuers traded in the U.S.