X0306 4 2015-08-13 0 0001107694 RACKSPACE HOSTING, INC. RAX 0001479670 Roenigk Mark 1 FANATICAL PLACE CITY OF WINDCREST SAN ANTONIO TX 78218 0 1 0 0 Chief Operating Officer Common Stock 2015-08-13 4 S 0 251 29.9520 D 60706 D Common Stock 2015-08-13 4 A 0 25397 29.53 A 86103 D These shares were sold pursuant to Company policy that requires a holder of Restricted Stock Units (RSU's) to immediately sell enough shares to enable the Company to fulfill its obligation to deliver funds to the Internal Revenue Service to cover the holder's tax obligation which is triggered by the vesting of the RSU and pursuant to the terms of Mr. Roenigk's Rule 10b5-1 trading plan. The prices for the sale of shares ranged from $29.95 to $29.96. The registrant undertakes to provide, upon request by the SEC staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. Granted pursuant to the 2007 Long Term Incentive Plan, as amended and restated. These shares were granted in the form of Restricted Stock Units (RSU's). Each RSU represents a contingent right to receive one share of Rackspace Hosting, Inc. common stock. The shares under the RSU grant shall vest 25% annually with the first vest date beginning August 15, 2016. /s/ William Alberts by Power of Attorney 2015-08-17