X0306 4 2013-03-28 1 0001130258 ACME PACKET INC APKT 0001314483 Hower Robert 1000 WINTER STREET SUITE 3700 WALTHAM MA 02451 1 0 0 0 Common Stock 2013-03-28 4 D 0 8026 29.25 D 0 D Stock Option (Right to Buy) 26.78 2013-03-28 4 D 0 12500 2.47 D 2022-05-04 Common Stock 12500 0 D Stock Option (Right to Buy) 26.69 2013-03-28 4 D 0 12500 2.56 D 2020-05-25 Common Stock 12500 0 D Disposed of for a cash payment of $29.25 per share pursuant to the Agreement and Plan of Merger (the "Merger Agreement"), dated as of February 4, 2013 by and among Acme Packet, Inc. ("Acme"), OC Acquisition LLC, Andes Acquisition Corporation, and Oracle Corporation ("Oracle") in connection with the merger that became effective on March 28, 2013. Twenty-five percent of the shares underlying the options vested on August 4, 2012, and the balance of the shares vest in equal installments on each three month anniversary thereafter beginning on November 4, 2012 and ending on May 4, 2013. Twenty-five percent of the shares underlying the options vested on July 1, 2010, and the balance of the shares vested in equal installments on the first day of the three subsequent calendar quarters beginning on October 1, 2010 and ending on April 1, 2011. /s/ Tim Demakis, as attorney-in-fact 2013-03-29