Ambarella Files Registration Statement for Proposed Initial Public Offering

SANTA CLARA, Calif.--August 22, 2012--Ambarella, Inc., a leading developer of semiconductor processing solutions for video that enable high-definition video capture, sharing and display, today announced that it has filed an updated version of its registration statement on Form S-1 with the Securities and Exchange Commission for a proposed initial public offering of its ordinary shares. The number of shares to be offered and the price range for the offering have not yet been determined.

Morgan Stanley & Co. LLC and Deutsche Bank Securities Inc. are acting as the joint book-running managers for the offering. Stifel Nicolaus Weisel and Needham & Company, LLC are acting as co-managers for the offering.

The offering will be made only by means of a prospectus. When available, a copy of the preliminary prospectus relating to and describing the terms of the offering may be obtained from Morgan Stanley & Co. LLC, by telephone: (866) 718-1649; by standard mail at Morgan Stanley & Co. LLC, Attention: Prospectus Department, 180 Varick Street, New York, NY 10014; or by email: prospectus@morganstanley.com; and from Deutsche Bank Securities Inc., by mail at Deutsche Bank Securities Inc., Attention: Prospectus Department, 60 Wall Street, New York, NY 10005-2836; by telephone: (800) 503-4611; or by e-mailing prospectus.cpdg@db.com.

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 nor shall there be any sale of these securities in any state or jurisdiction in which such an offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction.