X0306 4/A 2012-08-14 2012-08-16 0 0001107694 RACKSPACE HOSTING, INC. RAX 0001521244 Pichler Karl C/O RACKSPACE HOSTING, INC. 5000 WALZEM ROAD SAN ANTONIO TX 78218 0 1 0 0 CFO Common Stock 2012-08-14 4 S 0 200 54.2640 D 41019 D These shares were sold pursuant to Mr. Pichler's Rule 10b5-1 trading plan. The prices for the sale of these shares ranged from $54.16 to $54.28 per share. 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 purchased or sold at each separate price. Amended solely for the purpose of correcting an error made in reporting the amount of securities beneficially owned following the reported transaction /s/ William Alberts byPower of Attorney 2013-02-27