Stephen D. Milligan

Stephen D. Milligan
President and Chief Executive Officer
Western Digital Corporation

Steve Milligan re-joined Western Digital as president in March 2012 and was appointed chief executive officer effective January 2, 2013.

Immediately prior to returning to Western Digital, Milligan was president and chief executive officer of Hitachi Global Storage Technologies (Hitachi GST). During his tenure, Milligan led Hitachi GST through a financial and operational turnaround culminating in Western Digital's acquisition of Hitachi GST in March 2012.

Prior to joining Hitachi GST in 2007, Milligan was Western Digital's senior vice president and chief financial officer. He originally joined Western Digital in 2002 as vice president, finance.

Milligan previously was with Dell and Price Waterhouse. He traces his computer industry knowledge to Dell and his hard disk drive roots to his 12 years at Price Waterhouse, where his responsibilities included auditing IBM's hard disk drive business.

Steve Milligan holds a bachelor's degree in accounting from the Ohio State University.

Wolfgang U. Nickl

Wolfgang U. Nickl
Executive Vice President and Chief Financial Officer
Western Digital Corporation

Wolfgang Nickl, executive vice president and chief financial officer, is responsible for Western Digital's financial planning and analysis, operations finance, accounting, treasury, credit, tax, investor relations and internal audit functions. He also leads the company's market analysis and competitive intelligence groups. He was named senior vice president and chief financial officer in 2010. Nickl has been with the company since 1995 and reports to president and chief executive officer, Stephen Milligan.

From 2005 to 2010, Nickl served as vice president of finance. During the prior two years, Nickl was vice president of worldwide business operations and has served in several other roles in finance, supply chain management and IT in Europe, as well as in the U.S. Nickl was instrumental in Western Digital's acquisition of Komag in 2007 and several other business development projects.

Prior to joining Western Digital, Mr. Nickl worked at IBM Global Services as a consultant for SAP costing and finance applications. Nickl holds a Bachelor's degree in business from the University of Cooperative Education Stuttgart, Germany, where he received a full scholarship from IBM, and a master's degree of business administration from the University of Southern California.

Michael D. Cordano

Michael D. Cordano
President
HGST Subsidiary

In July 2012, Mike Cordano became president of HGST, a Western Digital Corporation company. He is responsible for worldwide operations of HGST, reporting to Steve Milligan, Western Digital president and chief executive officer.

A 20-year veteran of the storage industry, Mike previously was executive vice president of Sales and Marketing and president of Branded Business for HGST, where he led the external storage business in addition to the company's worldwide sales and marketing organizations. In this capacity, Mike played a key role in architecting HGST's corporate strategy and executing its successful financial turn-around. Western Digital acquired HGST in March 2012.

Prior to HGST, Mike was CEO and co-founder of Fabrik, Inc., a leading provider of portable and external storage solutions, including the award-winning G-Technology and SimpleTech product lines. Fabrik, financed by top venture capital firms, including Intel Capital, was acquired by HGST in April 2009.

Before co-founding Fabrik, Mike was executive vice president of Worldwide Sales and Marketing for Maxtor Corporation. At Maxtor he formed and managed the Branded Products Business Unit, creating break-through product categories, such as the Maxtor OneTouch external storage and backup solution, which ultimately defined the category.

Mike's background also includes several regional and international management assignments. He holds a bachelor's degree in business administration from the University of Colorado.

Timothy M. Leyden

Timothy M. Leyden
President
WD Subsidiary

Timothy Leyden, president of Western Digital Corporation subsidiary WD, rejoined Western Digital in May 2007 as executive vice president, finance, and later that year was appointed chief financial officer. In August 2010 he was promoted to chief operating officer and in July 2012 he was promoted to President of the WD subsidiary.

In his earlier career at Western Digital (1983 to 2000), Leyden served in various worldwide finance, manufacturing, and information technology capacities in the company's storage controller, semiconductor and hard drive businesses, both in his native Ireland and in the U.S.

During the interim period between leaving Western Digital in 1983 and rejoining in 2000, Leyden was senior vice president and chief financial officer of Sage Software Inc., a subsidiary of Sage Group PLC, a U.K. public company. Before that, he had worked as a management consultant to technology based companies during 2001 with Pittiglio, Rabin, Todd & McGrath.

Leyden received his ACMA (Associate Chartered Management Accountant) certification from the Chartered Institute of Management Accountants, Chapter Street, London. He holds a master's degree of business administration from University of California, Irvine.