Artisan Partners Asset Management Inc. (NYSE: APAM) (the “Company”) announced today the commencement of an underwritten public offering of 4,800,000 shares of its Class A common stock. The Company will grant the underwriters a 30-day option to purchase up to an additional 720,000 shares. The Company intends to use all of the net proceeds of this offering to purchase shares of the Company’s convertible preferred stock and preferred units of the Company’s subsidiary, Artisan Partners Holdings LP, from private equity funds controlled by Hellman & Friedman LLC. Citigroup and Goldman, Sachs & Co. are acting as joint bookrunners for the offering. BofA Merrill Lynch; Keefe, Bruyette & Woods; Sandler O’Neill + Partners, L.P. and William Blair are acting as co-managers for the offering. The offering will be made pursuant to the Company’s registration statement on Form S-1, as amended, which has been filed with the Securities and Exchange Commission, but has not yet become effective. The offering will be made only by means of a prospectus. A copy of the preliminary prospectus related to this offering, when available, may be obtained by contacting: Citigroup, c/o Broadridge Financial Solutions, 1155 Long Island Avenue, Edgewood, New York 11717, Tel: 800-831-9146 or Goldman, Sachs & Co., Prospectus Department, 200 West Street, New York, NY 10282, by calling (866) 471-2526, or by emailing firstname.lastname@example.org. A registration statement relating to these securities has been filed with the Securities and Exchange Commission but has not yet become effective. These securities may not be sold nor may offers to buy be accepted prior to the time the registration statement becomes effective. This press release shall not constitute an offer to sell or the solicitation of an offer to buy these securities, nor shall there be any sale of these securities in any state or jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction.