Rackspace Hosting (RAX) DEFA14A Additional proxy soliciting materials

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

Filed by the Registrantx

Filed by a Party other than the Registrant¨

Check the appropriate box:

¨       Preliminary Proxy Statement	¨       Confidential, for Use of the  Commission Only  (as permitted by Rule 14a-6(e)(2))
¨       Definitive Proxy Statement
x       Definitive Additional Materials
¨       Soliciting Material Pursuant to §240.14a-12

RACKSPACE HOSTING, INC.

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check the appropriate box):

x  No fee required.

¨  Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11.

(1)  Title of each class of securities to which the transaction applies:

(2)  Aggregate number of securities to which the transaction applies:

(3)  Per unit price or other underlying value of the transaction computed pursuant to Exchange ActRule 0-11 (set forth the amount on which the filing fee is calculated and state how it was determined):

(4)  Proposed maximum aggregate value of the transaction:

(5)  Total fee paid:

¨  Fee paid previously with preliminary materials.

¨  Check box if any part of the fee is offset as provided by Exchange Act Rule 0-11(a)(2) and identify the filing for which the offsetting fee was paid previously. Identify the previous filing by registration statement number, or the Form or Schedule and the date of its filing.

(1)  Amount Previously Paid:

(2)  Form, Schedule or Registration Statement No.:

(3)  Filing Party:

(4)  Date Filed:

ANNUAL MEETING OF STOCKHOLDERS OF

May 1, 2014

GO GREEN

e-Consent makes it easy to go paperless. With e-Consent, you can quickly access your proxy

material, statements and other eligible documents online, while reducing costs, clutter and

paper waste. Enroll today via www.amstock.com to enjoy online access.

NOTICE OF INTERNET AVAILABILITY OF PROXY MATERIAL:

The Notice of Meeting, proxy statement and proxy card

are available at www.rackspace.com/proxy

Please sign, date and mail

your proxy card in the

envelope provided as soon

as possible.

i Please detach along perforated line and mail in the envelope provided.i

¢ 00003333033000001000 2 050213

THE BOARD OF DIRECTORS RECOMMENDS A VOTE “FOR” THE ELECTION OF THE DIRECTORS IN PROPOSAL ONE

AND “FOR” APPROVAL OF PROPOSALS TWO, THREE AND FOUR

PLEASE SIGN, DATE AND RETURN PROMPTLY IN THE ENCLOSED ENVELOPE. PLEASE MARK YOUR VOTE IN BLUE OR BLACK INK AS SHOWN HEREx

		1.   Election of Directors
			FOR	AGAINST	ABSTAIN
		Lewis J. Moorman	¨	¨	¨
		Graham Weston	¨	¨	¨
		Ossa Fisher	¨	¨	¨
		2.    Ratification of the appointment of KPMG LLP as the company’s independent registered public accounting firm for the fiscal year ending December 31, 2014.	¨	¨	¨
		3.    Approval, by non-binding vote, of our executive compensation for our named executive officers	¨	¨	¨
		4.    Approval of the amendment to the 2007 Long-Term Incentive Plan	¨	¨	¨
		IN THEIR DISCRETION, the proxyholders are authorized to vote upon such other business as may properly come before the meeting or any adjournments or postponement thereof. THIS PROXY, WHEN PROPERLY EXECUTED, WILL BE VOTED AS DIRECTED OR, IF NO DIRECTION IS GIVEN, WILL BE VOTEDFOR PROPOSALS 1, 2, 3 AND 4.
		MARK “X” HERE IF YOU PLAN TO ATTEND THE MEETING.  ¨
To change the address on your account, please check the box at right and indicate your new address in the address space above. Please note that changes to the registered name(s) on the account may not be submitted via this method.	¨

Signature of Stockholder     Date:     Signature of Stockholder     Date:    

¢ Note: Please sign exactly as your name or names appear on this Proxy. When shares are held jointly, each holder should sign. When signing as executor, administrator, attorney, trustee or guardian, please give full title as such. If the signer is a corporation, please sign full corporate name by duly authorized officer, giving full title as such. If signer is a partnership, please sign in partnership name by authorized person. ¢