Western Digital Announces Preliminary Financial Information For First Quarter Fiscal 2016

Irvine, CA - October 21, 2015

Western DigitalĀ® Corp. (NASDAQ: WDC) today reported preliminary financial information for its first fiscal quarter ended Oct. 2, 2015: revenue of $3.4 billion, gross margin of 28.4% and net income of $283 million, or $1.21 per share. On a non-GAAP basis, gross margin was 28.9% and net income was $366 million, or $1.56 per share.

The company will release its final results for the first fiscal quarter after the close of market on Oct. 28, 2015. The investment community conference call to discuss these results will be broadcast live over the Internet that day at 2 p.m. Pacific/5 p.m. Eastern. The live and archived conference call webcast can be accessed online at investor.wdc.com. The telephone replay number is 1-800-947-5189 in the U.S. or +1-203-369-3554 for international callers.

About Western Digital
Founded in 1970, Western Digital Corp. (NASDAQ: WDC), Irvine, Calif., is an industry-leading developer and manufacturer of storage solutions that enable people to create, manage, experience and preserve digital content. It is a long-time innovator in the storage industry. Western Digital Corporation is responding to changing market needs by providing a full portfolio of compelling, high-quality storage products with effective technology deployment, high efficiency, flexibility and speed. Its products are marketed under the HGST and WD brands to OEMs, distributors, resellers, cloud infrastructure providers and consumers. Financial and investor information is available on the company's Investor Relations website at investor.wdc.com.

Forward Looking Statements
This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 concerning the company's preliminary financial results for the first fiscal quarter ended Oct. 2, 2015. These forward-looking statements are based on management's current expectations and are subject to risks and uncertainties that could cause actual results to differ materially from those expressed or implied in the forward-looking statements, including: the application of quarter-end accounting procedures and adjustments; other developments that may arise between the date of this press release and the time that the financial results for the first fiscal quarter ended Oct. 2, 2015 are finalized; and other risks and uncertainties listed in the company's filings with the Securities and Exchange Commission (the "SEC"), including the company's Annual Report on Form 10-K filed with the SEC on Aug. 21, 2015, to which your attention is directed. You should not place undue reliance on these forward-looking statements, which speak only as of the date hereof, and the company undertakes no obligation to update these forward-looking statements to reflect new information or events.

Financial Statements

Western Digital, WD and the WD logo are registered trademarks in the U.S. and other countries. HGST trademarks are intended and authorized for use only in countries and jurisdictions in which HGST has obtained the rights to use, market and advertise the brand.