Western Digital has announced the acquisition of Hitachi Global Storage Technologies (Hitachi GST), a wholly-owned subsidiary of Hitachi, Ltd., in a cash and stock transaction valued at approximately $4.3 billion.

 Under the terms of the agreement, WD will acquire Hitachi GST for $3.5 billion  in cash and 25 million WD common shares valued at $750 million, based on a WD closing stock price of $30.01 as of March 4, 2011. Hitachi, Ltd. will own approximately ten percent of Western Digital shares outstanding after issuance of the shares and two representatives of Hitachi will be added to the WD board of directors at closing.

 “The acquisition of Hitachi GST is a unique opportunity for WD to create further value for our customers, stockholders, employees, suppliers and the communities in which we operate,” said John Coyne, president and chief executive officer of WD.

 “This brings together two industry leaders with consistent track records of strong execution and industry outperformance,” said Steve Milligan, president and chief executive officer, Hitachi Global Storage Technologies. “Together we can provide customers worldwide with the industry’s most compelling and diverse set of products and services, from innovative personal storage to solid state drives for the enterprise.”