XRTX XORTX Therapeutics Inc

As filed with the Securities and Exchange Commission on March 31, 2014

Registration No. 333-169612

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

POST-EFFECTIVE AMENDMENT NO. 1

TO

FORM S-8

REGISTRATION STATEMENT

Under

The Securities Act of 1933

Langstone Road
Havant PO9 1SA
United Kingdom

(011) 44 2392 496000

(Address and telephone number, including area code, of registrant’s principal executive offices)

XYRATEX LTD

2004 EMPLOYEE STOCK PURCHASE PLAN

(Full title of the plan)

Brad Driver
46831 Lakeview Blvd.

Fremont, CA 94538

(510) 687-5260

(Name, address, and telephone number, including area code, of agent for service)

Copy to :

Kenneth M. Massaroni

Executive Vice President, General Counsel and

Chief Administrative Officer

Seagate Technology plc

10200 S. De Anza Blvd

P.O. Box 4030

Cupertino, CA 95015

 (408) 658-1000

DEREGISTRATION OF SECURITIES

On September 28, 2010 , the Registrant filed with the Securities and Exchange Commission a registration statement on Form S-8, Registration No. 333-169612 (the “Registration Statement”), for the sale of common shares, par value U.S.$0.01 per share (the “Common Shares”), of the Registrant under the Registrant’s Xyratex Ltd 2004 Employee Stock Purchase Plan, as amended and restated effective as of May 11, 2010.

On February 26, 2014, the Registrant’s shareholders approved and adopted, at a special meeting of shareholders, an Agreement and Plan of Merger (the “Agreement”), dated as of December 21, 2013, by and among the Registrant, Seagate Technology International, an exempted limited liability company incorporated and existing under the laws of the Cayman Islands and an indirect subsidiary of Seagate Technology plc (“Parent”), and Phoenix Acquisition Limited, an exempted company incorporated and existing under the laws of Bermuda and a wholly-owned Subsidiary of Parent (“Merger Sub”).  Pursuant to the Agreement, upon the issuance of the Certificate of Merger by the Registrar of Companies in Bermuda on March 31, 2014 (the “Effective Time”), Merger Sub merged with and into the Registrant, and the Registrant continued as the surviving entity of the Merger.

As a result of the Merger, the offering pursuant to the Registration Statement has been terminated. In accordance with an undertaking made by the Registrant in the Registration Statement to remove from registration, by means of a post-effective amendment, any Common Shares registered under the Registration Statement which remain unsold at the termination of the offering, the Registrant hereby removes from registration all Common Shares registered under the Registration Statement that remain unsold as of the Effective Time.

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