Tranche Update on F5, Inc.'s Equity Buyback Plan announced on October 26, 2010.

F5, Inc. specializes in developing and selling network equipment. Net sales break down by activity as follows: - supply of services (51.2%): consulting, training, maintenance, and technical support services; - sales of products (48.8%): load distribution systems providing load management, performance optimization, and security for computer systems, Internet traffic management systems, data storage systems, etc. Net sales are distributed geographically as follows: the United States (52.9%), Americas (3.4%), Europe/Middle East/Africa (26.4%), and Asia/Pacific (17.3%).