Western Digital
Annual Report 2015

Plain-text annual report

2015 ANNUAL REPORT and Form 10-K THE COMPANY Founded in 1970, Western Digital Corporation is an industry-leading developer, manufacturer and provider of storage solutions that enable consumers, businesses, governments and other organizations to create, manage, experience and preserve digital content. Its HGST and WD® subsidiaries are long-time innovators in the storage industry. HGST helps organizations harness the power of data to unlock greater business potential through a broad portfolio of storage solutions. HGST’s smarter storage solutions are everywhere, touching lives and enabling possibilities for the cloud, enterprise and sophisticated infrastructures, and powering the markets and companies that shape our lives. HGST is trusted and relied upon by the people who are moving the world forward with innovation. For more information, please visit hgst.com. WD has been a technology standard-setter in the industry’s highest volume markets. WD’s hard drives are deployed in personal computers, enterprise computing systems, consumer electronics and digital video applications, as well as in its external storage, personal cloud and business storage solutions portfolios. WD empowers people around the world to easily save, protect, share and experience their content on multiple connected devices. For information about WD products, visit wd.com. 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 effi ciency, fl exibility and speed. Our products are marketed under the HGST, WD and G-Technology™ brands to OEMs, distributors, resellers, cloud infrastructure players and consumers. Financial and investor information is available on the company’s Investor Relations website at investor.wdc.com. STEVE MILLIGAN President and Chief Executive Offi cer Western Digital Corporation DEAR FELLOW SHAREHOLDERS: We achieved solid fi nancial performance in fi scal 2015, in light of macroeconomic and PC-industry headwinds that resulted in softer demand during much of the year. We also continued to advance our strategy to be an innovative leader in the storage industry and, in doing so, create long-term value for our employees and shareholders. In fi scal 2015, we achieved revenue of $14.6 billion, gross margin of 29.0%, net income of $1.5 billion, and diluted earnings per share of $6.18. We shipped 249 exabytes of storage, up 16% from fi scal 2014. Nearly 60% of our revenue was generated from non-PC markets, versus 53% a year ago. In addition, our participation in growing, more profi table and largely cloud-related storage markets continued to expand. Refl ecting this trend, our average terabytes per drive shipped grew 26% from the prior year to 1.1 terabytes. We generated $2.2 billion in cash from operations during the 2015 fi scal year and we utilized $1.4 billion for dividends and share repurchases. We believe our capital allocation plan over the last several years is an appropriate and balanced approach that allows for both near-term and long-term value creation. We are focused on managing the decline in our PC-related business and accelerating the growth of our cloud-related businesses as we enter fi scal 2016. Our strategic investments and execution over the last several years have resulted in a strong product and technology positioning for us as we navigate this transition. $1,200 $1,000 $800 $600 $400 $200 $0 100% 80% 60% 40% 20% 0% 35% 30% 25% 20% 15% 10% 5% 0% CAPITAL ALLOCATION PLAN Dollars in millions EXABYTES SHIPPED AND AVERAGE TERABYTES SHIPPED EB shipped Avg TB 300 200 100 0 3.0 2.0 1.0 0.0 FY2011 FY2012 FY2013 FY2014 FY2015 FY2011 FY2012 FY2013 FY2014 FY2015 Share repurchases Dividends paid EB shipped Average TB shipped CLIENT REVENUE VERSUS NON-CLIENT REVENUE ENTERPRISE SSD REVENUE Dollars in millions FY2011 FY2012 FY2013 FY2014 FY2015 Client revenue Non-client revenue GROSS MARGIN As a percentage of revenue $1,000 $800 $600 $400 $200 $0 $4,000 $3,000 $2,000 $1,000 $0 FY2011 FY2012 FY2013 FY2014 FY2015 Enterprise SSD revenue CASH FLOW FROM OPERATIONS Dollars in millions FY2011 FY2012 FY2013 FY2014 FY2015 FY2011 FY2012 FY2013 FY2014 FY2015 Free cash flow All data presented is on an annualized basis. We achieved significant progress in advancing our growth initiatives in fiscal 2015: • Our enterprise solid state drive revenue grew 60% year-over-year to $811 million, demonstrating the continued success and broadening customer acceptance of our leading SAS SSD products. • We expanded our footprint in the enterprise SSD space with our new Ultrastar PCIe NVMe offering. We expect SAS and PCIe-based SSDs will be the main interfaces in the fast-growing enterprise SSD market over the next several years. • We continued to see strong demand for our high-capacity helium hard drives, which provides compelling value for hyperscale datacenter customers and for next-generation active archive applications. We have delivered three helium-based HDD capacity points in the last two years. • Revenue from our video surveillance hard drives continued its rapid growth in fiscal 2015, as we expanded our lineup of these purpose-built solutions for the global security industry. • We saw positive market reaction to the value proposition of our new Active Archive system. Our acquisition of Amplidata, a leader in object storage software, provides a key building block for these systems that address a greenfield opportunity in enterprise storage. Our view of persistent data growth remains intact, driven by mobility and the cloud. The outlook for our overall storage business remains healthy, and we believe we are well positioned to address this evolving space. In closing, I want to thank our Chairman of the Board, Tom Pardun, for his 22 years of service on the Western Digital board of directors. Tom will be retiring at our annual shareholders’ meeting and will be succeeded as chairman by former chairman, president and CEO, Matt Massengill. I also thank our employees for their dedication, and our shareholders, customers and partners for their support, and I look forward to reporting to you on our progress in the years ahead. Steve Milligan President and Chief Executive Officer Western Digital Corporation September 23, 2015 [THIS PAGE INTENTIONALLY LEFT BLANK] UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K (Mark One) È ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ‘ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended July 3, 2015 Or For the transition period from to Commission file number 1-8703 WESTERN DIGITAL CORPORATION (Exact Name of Registrant as Specified in Its Charter) Delaware State or Other Jurisdiction of Incorporation or Organization 3355 Michelson Drive, Suite 100 Irvine, California (Address of principal executive offices) 33-0956711 (I.R.S. Employer Identification No.) 92612 (Zip Code) Registrant’s telephone number, including area code: (949) 672-7000 Securities registered pursuant to Section 12(b) of the Act: Title of each class Common Stock, $.01 Par Value Per Share Name of each exchange on which registered The NASDAQ Stock Market LLC (NASDAQ Global Select Market) Securities registered pursuant to Section 12(g) of the Act: None Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes È Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes ‘ Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes È No ‘ No È No ‘ Indicate by checkmark whether the registrant has submitted electronically and posted on its corporate website, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes È No ‘ Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (§ 229.405 of this chapter) is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. È Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one): Large accelerated filer È Accelerated filer ‘ Smaller reporting company ‘ Non-accelerated filer ‘ (Do not check if a smaller reporting company) Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes ‘ The aggregate market value of the registrant’s common stock held by non-affiliates of the registrant on January 2, 2015, the last business day of the registrant’s most recently completed second fiscal quarter, was approximately $23 billion, based on the closing sale price as reported on the NASDAQ Global Select Market. No È As of the close of business on August 13, 2015, 230,402,975 shares of common stock, par value $.01 per share, were outstanding. Part III incorporates by reference certain information from the registrant’s definitive proxy statement (the “Proxy Statement”) for the 2015 Annual Meeting of Stockholders, which will be filed with the Securities and Exchange Commission within 120 days after the end of the 2015 fiscal year. Except with respect to information specifically incorporated by reference in this Form 10-K, the Proxy Statement is not deemed to be filed as part hereof. Documents Incorporated by Reference WESTERN DIGITAL CORPORATION INDEX TO ANNUAL REPORT ON FORM 10-K For the Fiscal Year Ended July 3, 2015 PART I Item 1. Business . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Item 1A. Risk Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Item 1B. Unresolved Staff Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Item 2. Item 3. Legal Proceedings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Item 4. Mine Safety Disclosures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PART II Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters, and Issuer Purchases of Equity Securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Item 6. Selected Financial Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations . . . . . . . . Item 7A. Quantitative and Qualitative Disclosures About Market Risk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Financial Statements and Supplementary Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Item 8. Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure . . . . . . . . Item 9A. Controls and Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Item 9B. Other Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PART III Item 10. Directors, Executive Officers and Corporate Governance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Executive Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Item 11. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Item 12. Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Item 13. Certain Relationships and Related Transactions, and Director Independence . . . . . . . . . . . . . . . . . . Principal Accountant Fees and Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Item 14. Item 15. Signatures PART IV Exhibits and Financial Statement Schedules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 4 15 34 34 35 35 36 38 38 50 51 93 93 94 95 95 95 95 95 96 97 Our fiscal year ends on the Friday nearest to June 30 and typically consists of 52 weeks. Approximately every six years, we report a 53-week fiscal year to align our fiscal year with the foregoing policy. Fiscal year 2015, which ended on July 3, 2015, was comprised of 53 weeks, with the first quarter consisting of 14 weeks and the second, third and fourth quarters consisting of 13 weeks each. Fiscal years 2014 and 2013, which ended on June 27, 2014 and June 28, 2013, respectively, were each comprised of 52 weeks. Fiscal year 2016 will be comprised of 52 weeks. Unless otherwise indicated, references herein to specific years and quarters are to our fiscal years and fiscal quarters, and references to financial information are on a consolidated basis. As used herein, the terms “we,” “us,” “our,” the “Company,” “WDC” and “Western Digital” refer to Western Digital Corporation and its subsidiaries, unless, we state, or the context indicates, otherwise. WDC, a Delaware corporation, is the parent company of our data storage business, which operates under two independent subsidiaries – HGST and WD. Our principal executive offices are located at 3355 Michelson Drive, Suite 100, is (949) 672-7000 and our website telephone number www.westerndigital.com. The information on our website is not incorporated in this Annual Report on Form 10-K. Irvine, California 92612. Our is Western Digital, WD, the WD logo, My Cloud and G-Technology are trademarks of Western Digital Tech- nologies, Inc. and/or its affiliates. All other trademarks mentioned are the property of their respective owners. 2 Forward-Looking Statements This document contains forward-looking statements within the meaning of the federal securities laws. Any statements that do not relate to historical or current facts or matters are forward-looking statements. You can identify some of the forward-looking statements by the use of forward-looking words, such as “may,” “will,” “could,” “would,” “project,” “believe,” “anticipate,” “expect,” “estimate,” “continue,” “potential,” “plan,” “forecast,” and the like, or the use of future tense. Statements concerning current conditions may also be forward-looking if they imply a continuation of current conditions. Examples of forward-looking statements include, but are not limited to, statements concerning: ‰ expectations concerning the anticipated benefits of our acquisitions; ‰ demand for our products in the various markets and factors contributing to such demand; ‰ our platform; ‰ our position in the industry; ‰ our belief regarding our ability to capitalize on the expansion in, and our expectations regarding the growth and demand of, digital data; ‰ our plans to continue to develop new products and expand into new storage markets and into emerging economic markets; ‰ our balancing of our hard drive business with investments in newer areas; ‰ developing relationships with customers; ‰ the emergence of new storage markets for our products; ‰ the emergence of competing storage technologies; ‰ our quarterly cash dividend policy; ‰ our share repurchase plans; ‰ our stock price volatility; ‰ our belief regarding our compliance with environmental laws and regulations; ‰ expectations regarding our external and internal supply base; ‰ our belief regarding component availability; ‰ expectations regarding the outcome of legal proceedings in which we are involved; ‰ our beliefs regarding tax benefits and the timing of future payments, if any, relating to the unrecognized tax benefits, and the adequacy of our tax provisions; and ‰ our beliefs regarding the sufficiency of our cash and cash equivalents to meet our working capital, capital expenditure and other cash needs. Forward-looking statements are subject to risks and uncertainties that could cause actual results to differ materially from those expressed in the forward-looking statements. You are urged to carefully review the disclosures we make concerning risks and other factors that may affect our business and operating results, including those made in Part I, Item 1A of this Annual Report on Form 10-K, and any of those made in our other reports filed with the Securities and Exchange Commission (the “SEC”). You are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date of this document. We do not intend, and undertake no obligation, to publish revised forward-looking statements to reflect events or circumstances after the date of this document or to reflect the occurrence of unanticipated events. 3 Item 1. Business General PART I We are a leading developer, manufacturer and provider of data storage solutions that enable consumers, busi- nesses, governments and other organizations to create, manage, experience and preserve digital content. Our product portfolio includes hard disk drives (“HDDs”), solid-state drives (“SSDs”), direct attached storage solutions, personal cloud network attached storage solutions, and public and private cloud data center storage solutions. HDDs are our principal products and are today’s primary storage medium for the vast majority of digital content, with the use of solid-state storage products growing rapidly. Our products are marketed under the HGST, WD and G-Technology brand names. We believe we are well positioned to capitalize on important long-term growth trends in the rapidly changing storage industry — the ongoing expansion in digital content and the growth in the amount of that content being stored. These trends are linked directly to consumers’ and commercial enterprises’ increasingly ubiquitous experience with data and the increasing value of that data. The confluence of data growth and the ability to expand the extraction of value from data is driving the need for the long-term retention of as much data as possible for legal and regulatory purposes and for potential future refinements in a wide range of fields, including advertising, aerospace, e-commerce, energy, medical, mining, and security surveillance. We believe the ways in which people and organizations are creat- ing and using data are changing and that the amount of data considered useful to store is expanding. Increasingly, more and more digital content is being stored and managed on hard drives and solid state drives in the cloud environment and we believe we are strongly positioned to continue to play a role in this transition. With a focus on innovation and value creation, our goal is to grow through continued strong execution and with targeted investments in datacenter infrastructure, mobility and the cloud. Due to regulatory requirements, we have operated our global business since March 2012 through two independent subsidiaries — HGST and WD, both long-time innovators in the storage industry. In March 2014, we submitted an application to the Ministry of Commerce of the People’s Republic of China (“MOFCOM”) to lift the condition it imposed on our Company to operate these businesses separately. At this time, we are awaiting MOF- COM’s response to our application. Our headquarters are located in Irvine, California. WDC was founded in 1970 as a specialized semiconductor manufacturer and since entering the hard drive industry in 1988, its WD subsidiary has been a technology standard- setter in the industry’s highest volume markets. HGST, a provider of high-value storage in enterprise markets, was acquired by WDC in March 2012. HGST was founded in 2003 through the combination of the HDD businesses of International Business Machines Corporation, the inventor of the HDD, and Hitachi, Ltd. (“Hitachi”). As of July 3, 2015, WDC had approximately 9,700 engineers and one of the industry’s largest patent portfolios with more than 7,000 active patents worldwide. We have relationships with the full range of customers currently addressing storage opportunities. These include storage subsystem suppliers, major server original equipment manufacturers (“OEMs”), Internet and social media infrastructure players, and personal computer (“PC”) and Mac™ OEMs. We sell our products to OEMs, distributors, resellers, cloud infrastructure players, and consumers. We have a strong consumer brand heritage with our WD and G-Technology branded products businesses. The storage market in which we operate is rapidly changing and evolving. To address these dynamics, we regu- larly review opportunities to apply our knowledge of data storage technology to markets that we do not currently serve or in markets where we seek to broaden our participation and augment our resources and capabilities. Invest- ments and acquisitions are a key part of our overall strategy to create long-term value within the storage ecosystem. For example, since the beginning of fiscal 2014 we have strengthened our enterprise SSD business with acquisitions of companies such as Virident Systems, Inc. (“Virident”), sTec, Inc. (“sTec”) and VeloBit, Inc. (“VeloBit”). In March 2015, we acquired Amplidata, NV (“Amplidata”), a developer of object storage software for public and private cloud data centers, a key building block in a new systems business we have entered called active archive storage that is addressing a new greenfield opportunity in the object storage space. With this strategy, we are assembling the 4 technology building blocks to increase our overall market participation and be a full-line data storage solutions supplier, balancing our core hard drive business with growing investments in newer areas that we believe will provide us with higher growth opportunities. Consistent with our measured and deliberate approach to new market entries in the past, our approach to additional new markets will be based on a careful assessment of the risks, rewards, require- ments and profit potential of such actions. Industry The growth and changes in the global ecosystem for digital content storage solutions are being driven by several factors including: ‰ Proliferation of data. The proliferation of consumer electronics (“CE”), computing devices, social media and cloud-related infrastructure is driving rapid growth in the creation, sharing and retention of high definition video, high resolution images, e-mail and big data files. ‰ Evolution in data access and distribution. Increasing demand for data access and distribution anytime and any- where, facilitated by rapidly improving network accessibility, big data analytics and higher bandwidth, is powering a dramatic increase in the need for data storage at both the local level and at the off-site, network- accessed or “cloud” levels. ‰ Advancements in storage devices. Technological improvements in the capacity, size, performance, connectivity and power requirements of storage devices continue to meet the demand for higher density and higher performance storage in increasingly diverse applications. ‰ Growth in consumers’ use of mobile computing and storage and use of digital content in the home and small office. ‰ Adoption of tiered storage architectures. With the significant increase in data storage demand, enterprises and cloud infrastructure players have adopted tiered storage architectures to improve storage performance and manage the costs of this growth as they cope with increasingly large, growing pools of digital content. Tiered storage architectures optimize data storage to the most appropriate storage device, driving increasing demand for high capacity and high performance HDDs and flash-based solid-state storage. ‰ The development of advanced storage solutions that bypass tiered architectures while delivering the same benefits. We are a market and customer driven company, focused on growth, innovation and value creation for our custom- ers, employees and shareholders. We develop deep and collaborative relationships with customers aimed at making them more successful, an approach that is being manifested in our role as a trusted advisor and market maker in our served markets. We believe this approach is one of the key factors that will help us continue to achieve strong finan- cial performance over the long term. We believe our platform is broad-based and powerful, with growth drivers and unique competitive advantages that will continue to provide us the opportunity to expand our value-creation model within an evolving, changing and growing storage ecosystem. The ability to store large amounts of data is an ongoing enabler of the large amount of digital content being cre- ated and utilized. We believe the growth in the number of computing users and connected mobile devices in the world continues unabated, creating more usage and more digital content to be stored. Cloud computing applications are especially noteworthy given that they create multiple copies of photos, videos and other content to ensure efficient distribution and security. We believe that petabytes shipped in the HDD industry were up 14% in fiscal 2015 from fiscal 2014, reflecting primarily the strength in demand for storage in enterprise cloud applications. In addition, we believe revenue in the SSD industry was up 24% in fiscal 2015 from fiscal 2014, reflecting strength in SSD enterprise markets. Enterprise Enterprise storage devices consist of performance and capacity HDDs and SSDs. These devices are used in multi- ple types of enterprise datacenters that provide storage for a range of cloud and corporate applications. Within data- centers, these drives are typically used in servers and storage systems. There are also newer enterprise systems level products that address a category of data storage previously deemed inaccessible and too costly to access. We recently 5 began shipping a new category of enterprise storage product called active archive, which is a fully enclosed rack sys- tem utilizing our helium hard drives and object storage software. Performance and capacity HDDs and SSDs are essential to the operations of an enterprise and require the greatest capabilities and reliability. These drives are the most highly engineered product line in the storage industry. The infrastructure to support cloud computing storage is driving the demand for multi-platter high capacity HDDs as well as enterprise class SSDs in tiered storage architectures. Cloud computing delivers shared resources, software and information to users on demand on a multitude of devices, such as client PCs, tablets and smart phones. Most cloud computing models consist of services delivered through large datacenters with enterprise-class servers, also utilizing tiered architectures to address multiple levels of storage needs. We believe we have established a leading position in supplying performance HDDs, multi-platter high capacity HDDs and SSDs to address these needs. We believe petabyte shipments into the enterprise market of the storage industry were up 49% in fiscal 2015 from fiscal 2014. Future growth in the enterprise market is expected to occur based on public and private cloud- related projects to address the continued growth in data being created and the demand to store much of that data. Client: Desktop and Notebook PCs Client storage devices consist of internal HDDs and SSDs for desktop and mobile PCs. Desktop PCs are intended for regular use at single locations in homes and businesses, as well as in multi-user educational and government networks. Mobile PCs, primarily notebook computers, are used both in and away from homes and businesses. The demand for hard drives in desktop and notebook PCs is in decline due to the slow-down in PC sales, the increased use of SSDs as replace- ments for HDDs in notebook PCs, and the growing shift of storage workloads to the cloud. Other HDD markets, such as cloud, traditional enterprise, branded products, gaming and other solutions have been expanding. We believe the units shipped in client hard drives were down 12% in fiscal 2015 from fiscal 2014. We believe that HDD unit shipments into client computer storage devices will be driven primarily by demand in emerging countries, corporate and consumer refreshes and the enduring nature of PCs as the most fully functional computing device. Branded Products External storage devices supplement the storage space on PC systems for home and small office networks and, through wireless connections, the fastest growing category in this market, provide remote access to personal content. These drives, when directly attached to PCs, are ideally suited to back up the data already stored on PC internal drives because of their portability and security features. The growing availability of wireless connectivity is creating growth opportunities for external networked attached storage solutions such as our family of WD My CloudTM products. We believe HDD unit shipments into the external storage market decreased 6% in fiscal 2015 from fiscal 2014. Consumer Electronics HDDs for CE products are primarily used in digital video recorders (“DVRs”), game consoles and security video recording systems. We believe demand for greater storage capacity in these applications will continue to drive growth for higher capacity HDDs. DVRs offer greater consumer viewing flexibility and enhanced capabilities such as pausing live television, sim- plifying the process of recording and cataloging recorded television programs and quickly forwarding or returning to any section of a recorded television program. Game consoles enable users to save games, movies, music, pictures and other user generated content. Security surveillance hard drives provide 24/7 reliability and peace of mind for the installation of home or small to medium sized business (“SMB”) security systems. We believe HDD unit shipments into the CE market increased 3% in fiscal 2015 from fiscal 2014. Competition We compete with manufacturers of HDDs for client compute, client non-compute and enterprise applications and manufacturers of SSDs. The HDD market consists of five principal brands: HGST, Samsung, Seagate, Toshiba and WD. In solid-state products, we compete with a wide range of manufacturers, from small startup companies to multinational corporations, including Intel, Micron, Samsung, SanDisk, Seagate and Toshiba. 6 The storage industry is increasingly utilizing tiered architectures with HDDs and SSDs to address an expanding set of uses and applications. HDDs are highly substitutable due to industry standards that mandate the technical form, fit and function of HDDs, and we believe there are no substantial barriers for existing HDD competitors to offer competing products. HDD attributes include product quality and reliability, storage capacity, unit price, product performance, production volume capabilities, delivery capability, leadership in time-to-market, time-to-volume and time-to-quality, service and support and ease of doing business. The relative importance of these factors varies by customer, market and use, and we believe that we are generally competitive in all of these factors. Semiconductor media or solid-state technology provides high performance attributes in some enterprise-class applications and client notebook designs and attractive functionality in consumer handheld applications requiring smaller form factors, lower power and less storage capacity, such as smart phones and tablets. With advances in our own solid-state enterprise business, coupled with our actions to strengthen those resources through acquisitions and investments, we believe we are positioned to compete successfully in the enterprise-class solid-state space of this market. Advances in magnetic, optical or other data storage technologies could also result in competitive products for storing digital content with better performance or lower cost per unit of capacity than our products. We monitor the advantages, disadvantages and advances of the full array of storage technologies on an ongoing basis. Business Strategy Our business strategy is to be an industry-leading developer, manufacturer and provider of innovative storage solutions that enable people to create, manage, experience and preserve digital content. We strive to achieve our busi- ness strategy through the following elements: ‰ relentless focus on operational excellence in all aspects of our business; ‰ providing a full portfolio of compelling, high quality storage products with effective technology deployment, high efficiency, flexibility and speed; ‰ developing collaborative engineering relationships with customers that create value by solving their data management needs through innovative solutions; and ‰ strategically aligning our investments in profitable and growing markets beyond our core HDD business, to ensure future growth in storage businesses related to mobility, solid-state and cloud computing. We believe our strategy provides the following benefits, which distinguish us in the dynamic and competitive storage industry: ‰ enables continued diversification of our storage solutions portfolio and entry into additional growing adjacent markets; ‰ allows us to achieve strong financial performance, including healthy returns on invested capital and cash gen- eration, thereby enabling efficient allocation of capital to shareholders and strategic investments in innovation; and ‰ creates compelling value for our customers and makes them more successful, while providing growth oppor- tunities for our suppliers, employees, and shareholders. Data Storage Solutions We offer a broad line of data storage solutions to meet the evolving storage needs of our end users. HGST’s HDD offerings include: high performance 10,000/15,000 revolutions per minute (“RPM”) drives targeting server and stor- age system OEMs, enterprise capacity drives for bulk storage applications for both hyperscale cloud customers and OEMs, the industry’s only helium sealed drives featuring capacities of up to 10 terabytes (“TB”) to deliver unmatched total cost of ownership, mobile drives for the notebook, PC and gaming markets, a G-Technology line of branded products for professional content producers, enterprise storage software and a fully integrated active archive system. HGST also delivers a line of SSDs for servers and storage systems applications that includes 2.5” serial attached SCSI (Small Computer System Interface) (“SAS”) drives as well as peripheral component interconnect express (“PCIe”) NVMe SSDs and embedded flash solutions. Our WD subsidiary designs, manufacturers and provides hard drives for a wide range of digital storage uses, from PCs and data centers to video recording systems, home network storage 7 devices, and video surveillance. WD also packages these hard drives into consumer appliances, which offer portable, desktop and personal cloud storage for accessibility from anywhere and sharing functionality. Enterprise Storage. Enterprise storage solutions consist of HDDs and SSDs for performance enterprise and capacity enterprise markets. Our enterprise storage offerings include performance HDDs which are optimized for performance applications providing a range of capacity and performance levels primarily for use in enterprise servers, supporting high volume on-line transactions, data analysis and other enterprise applications. Our enterprise storage devices also include capacity drives which provide enterprise class reliability at the lowest cost per gigabyte (“GB”) and are primarily for use in data storage systems, in tiered storage models and where data must be stored reliably for years. We recently launched the world’s first 10TB drive, a helium sealed HDD designed for active archive applica- tions where the highest possible capacity is required while maintaining enterprise level reliability. Lastly, our enter- prise storage solutions include solid-state solutions which feature high read/write speeds and include high capacities. For 2015, our HGST subsidiary continued its leadership as the first and only supplier of helium-filled HDDs. This advanced technology allows HGST to pack seven-platters in a standard 3.5” form factor providing up to 10TB capacity. This drives down total cost of ownership at the data center level by providing significant improvements in capacity, power, cooling and storage density. HGST reached an important milestone in March 2015, shipping its one millionth helium drive. Our enterprise HDD unit shipments were 31 million, 30 million and 28 million for 2015, 2014 and 2013, respectively. Through the calendar 2014 extension of the joint development agreement with Intel Corporation for SAS SSDs, the calendar 2013 acquisitions of sTec, Virident and Velobit, and the calendar 2014 acquisition of Skyera, our HGST subsidiary has strengthened its position in the fast growing market for enterprise class SSDs and SSD-based solutions. We now offer a broad range of SSDs for the enterprise applications based on the SAS and PCIe interfaces. HGST also delivers advanced software for caching, high-availability and clustering that accelerates traditional enterprise storage environments and enables significant server consolidation and improved total cost of ownership for cloud and hyper- scale environments. Storage Platforms and Systems. Supporting HGST’s strategy to bring higher value data storage platforms and systems to the market, HGST announced its first vertically integrated solution — the HGST Active Archive system. The active archive system delivers a fully-configured S3-compliant, scale-out object storage system that utilizes HGST’s helium-filled HDDs for improved storage economics. Through vertical innovation and integration, the active archive system leverages HGST’s deep insight into storage systems resulting in an integrated, tuned and optimized solution that delivers improved total cost of ownership that can be more cost-effective than traditional cloud infra- structure. Client: Desktop and Notebook PCs. Client compute solutions consist of HDDs for desktop and mobile PCs. Our client compute storage solutions include HDDs designed for use in desktop PCs requiring high performance, reli- ability and capacity with various attributes such as low cost per GB, quiet acoustics, low power consumption and protection against shocks. In addition, we provide HDDs designed for use in mobile PCs and requiring high perform- ance, reliability and capacity with various ranges of performance and attributes such as low power consumption for extended battery life and cooler operation, quiet acoustics and protection against shocks. We also offer Serial Advanced Technology Attachment (“SATA”) HDDs specifically designed for home and small office network attached storage systems and optimized for energy efficiency and reliability, hard drives for video recording applications, including surveillance, as well as HDDs designed for advanced single-user computing systems such as professional systems for video editing and computer-aided design/computer-aided manufacturing (“CAD/ CAM”) applications and high-end desktop PC applications including gaming, which require high performance and high reliability. Our client compute HDD unit shipments were 136 million, 157 million and 162 million for 2015, 2014 and 2013, respectively. Branded Products. Our branded product solutions consist of HDDs embedded into WD-, HGST- and G- Technology-branded external storage appliances with capacities ranging from 500 GB to 24 TB and using interfaces such as USB 2.0, USB 3.0, FireWireTM, ThunderboltTM and Ethernet network connections. Within branded products, 8 we offer HDDs that provide high quality, reliable storage for backup and capacity expansion in both mobile and desktop form factors that are designed to keep digital content secure while providing portable storage for desktops and notebooks. In addition, within branded products we offer solutions for SMBs, by offering complete network storage solutions designed to meet the needs of SMBs by providing centralized storage, backup, data protection and remote file access. We also provide external hard drives that connect to home or office networks, enabling consumers access from anywhere with an Internet connection and from smart phones, tablets and PCs via WD mobile apps and PC software. These My Cloud solutions offer the same functionality as public cloud storage services, yet offer consumers the peace of mind that owner- ship brings, with lower cost and greater capacity. Certain branded product solutions-such as our My Cloud products include software that assists customers with backup, remote access and management of digital content. Our branded product hard drive unit shipments were 25 million in each of 2015, 2014 and 2013. Consumer Electronics Solutions. CE solutions are used in DVRs, gaming consoles, security surveillance, systems, set top boxes, camcorders, multi-function printers and entertainment and automobile navigation systems. Our CE solutions include HDDs designed and optimized for video streaming and continuous digital video recording. These HDDs deliver quiet operation, low operating temperature, low power consumption, high reliability and optimized streaming capabilities. Our CE HDD unit shipments were 37 million, 37 million and 28 million for 2015, 2014 and 2013, respectively. Technology Hard Disk Drives HDDs provide non-volatile data storage, which means that the data remains present when power is no longer applied to the device. The primary measures of hard drive performance include: ‰ Acoustics — sound power emitted during hard drive operation, commonly expressed in decibels, and perceived loudness due to sound pressure, commonly expressed in sones; ‰ Data transfer rate — sustained rate of data transfer to and from the disk, commonly expressed in gigabits per second; ‰ Power consumption — which is the amount of electricity required to operate the drive, measured in watts; ‰ Seek time — time needed to position the heads over a selected track on the disk surface, commonly expressed in milliseconds; ‰ Spindle rotation speed — nominal rotation speed of the disks inside the hard drive, commonly expressed in RPM or latency. Spindle rotation speeds commonly stated as 5,400, 7,200, 10,000 and 15,000 RPM are some- times approximations; and ‰ Storage capacity — which is the amount of data that can be stored on the hard drive, commonly expressed in GB or TB. The storage capacity of a hard drive is determined by the number of disks and each disk’s areal density (track density multiplied by bit density), which is a measure of the amount of data that can be stored on the recording sur- face of the disk per unit area. Head and magnetic media technologies are two of the key technology components of hard drives affecting areal density. We develop and manufacture a substantial portion of the heads and magnetic media used in our hard drive products. As areal density increases, achieving a given drive capacity potentially reduces product costs over time through reduced component requirements. We also invest considerable resources in research and development, manufacturing infrastructure and capital equipment of head and magnetic media components in order to secure our competitive position and cost structure. Industry-standard interfaces allow the drives to communicate with the host system. The primary interface for PCs is SATA and the primary interfaces for enterprise systems are Fibre Channel, SAS, SATA and PCIe. Solid-State Drives SSDs use semiconductor, non-volatile media, rather than magnetic media and magnetic heads, to store and allow fast access to data without any moving parts. The cost per bit of solid-state drives is more expensive than hard drives, 9 but the higher input/output (“IO”) performance makes SSDs an attractive new tier of storage that fits between DRAM memory and hard drives. SSDs are finding growing usage in enterprise storage systems and servers in applications that demand the highest IO performance. The non-volatile memory in use today for SSDs is NAND flash technology. While single-level cell flash provides the highest endurance and performance, the optimal balance of price and performance is usually achieved through the use of multi-level cell flash. Multiple NAND flash die are used on a single printed circuit board assembly (“PCBA”) and connected in parallel through a controller to the host bus. Various performance classes of SSDs are created by varying the number of parallel NAND channels and the speed of controller logic and firmware. The controller con- tains hardware logic and firmware to buffer the data flow to and from the host, to the NAND flash, and to manage the reliability and performance of the NAND flash media. The typical host interfaces for SSDs include PCIe, SAS and SATA. PCIe products typically offer the highest per- formance and come on edge cards that plug into the PCIe bus. PCIe defines the hardware and electrical interface but the software protocols are still proprietary today. New standards such as NVMe and SCSI express are emerging to bring more standardized software protocols for communicating with PCIe SSDs. SAS and SATA products utilize standardized interfaces similar to hard drives and come in 2.5-inch form factors with differing package heights depending on the application and usage. The typical power consumption for the SAS and SATA interfaces is similar to hard drives, while the power consumption of PCIe form factor devices is typically higher. Our products generally leverage a common platform for various products within product families, and in some cases across product families, resulting in the commonality of components which reduces our exposure to changes in demand, facilitates inventory management and allows us to achieve lower costs through purchasing economies. This platform strategy also enables our customers to leverage their qualification efforts onto successive product models. For a discussion of associated risks, see Part I, Item 1A of this Annual Report on Form 10-K. Research and Development We devote substantial resources to the development of new products and the improvement of existing products. We focus our engineering efforts on coordinating our product design and manufacturing processes to bring our prod- ucts to market in a cost-effective and timely manner. Research and development expenses totaled $1.6 billion, $1.7 billion and $1.6 billion in 2015, 2014 and 2013, respectively. For a discussion of associated risks, see Part I, Item 1A of this Annual Report on Form 10-K. Patents, Licenses and Proprietary Information We have more than 7,000 active patents and have many patent applications in process. We believe that although our active patents and patent applications have considerable value, the successful manufacturing and marketing of our products depends primarily upon the technical and managerial competence of our staff. Accordingly, the patents held and applied for do not ensure our future success. In addition to patent protection of certain intellectual property rights, we consider elements of our product designs and processes to be proprietary and confidential. We believe that our non-patented intellectual property, par- ticularly some of our process technology, is an important factor in our success. We rely upon non-disclosure agree- ments and contractual provisions and a system of internal safeguards to protect our proprietary information. Despite these safeguards, there is a risk that competitors may obtain and use such information. The laws of foreign juris- dictions in which we conduct business may provide less protection for confidential information than the United States (“U.S”). We rely on certain technology that we license from other parties to manufacture and sell our products. We believe that we have adequate cross-licenses and other agreements in place in addition to our own intellectual property portfolio to compete successfully in the storage industry. For a discussion of associated risks, see Part I, Item 1A of this Annual Report on Form 10-K. 10 Manufacturing We believe that we have significant know-how, unique product manufacturing processes, test and tooling, execution skills and human resources to continue to be successful and to grow, as necessary, our manufacturing oper- ations. We strive to maintain manufacturing flexibility, high manufacturing yields, reliable products, and high- quality components. The critical elements of our HDD production are high volume and utilization, low cost assembly and testing, strict adherence to quality metrics and maintaining close relationships with our strategic component suppliers to access best-in-class technology and manufacturing capacity. HDD manufacturing is a complex process involving the production and assembly of precision components with narrow tolerances and thorough testing. The assembly process occurs in a “clean room” environment that demands skill in process engineering and efficient space utilization to control the operating costs of this manufacturing environment. Our clean room manufacturing process consists of modular production units, each of which contains a number of work cells. We continually evaluate our manufacturing processes in an effort to increase productivity, sustain and improve quality and decrease manufacturing costs. We continually evaluate which steps in the manufacturing process would benefit from automation and how automated manufacturing processes can improve productivity and reduce manufactur- ing costs. For our non-HDD products, we leverage the efficiencies of contract manufacturers when strategically advanta- geous. For a discussion of associated risks, see Part I, Item 1A of this Annual Report on Form 10-K. Materials and Supplies The main components of the hard drive are a head-disk-assembly (“HDA”) and a PCBA. The HDA includes heads, magnetic media, head positioning mechanism (“actuator”) and spindle motor. A rigid base and top cover contain these components in a contamination-controlled environment. One or more disks posi- tioned around a motor-driven spindle hub that rotates the disks comprise the disk-pack assembly. The disk is made up of a smooth substrate on which thin layers of magnetic materials are deposited. The head stack assembly (“HSA”) is comprised of a magnetic positioner and a pivot-arm module on which the head gimbal assemblies (“HGAs”), includ- ing suspension, are mounted. Each disk surface has a head suspended directly above it, which can read data from or write data to the spinning disk. Other key components of our hard drives are pre-amps and voice coil magnets. The PCBA includes both standard and custom integrated circuits, an interface connector to the host computer and a power connector. The integrated circuits on the printed circuit board typically include a power device that con- trols the motor and HSA positioner, and a system-on-chip (“SoC”) comprised of a drive interface, controller and recording channel. The drive interface receives instructions from the host computer, while the controller directs the flow of data to or from the disks and controls the heads. The location of data on each disk is logically maintained in concentric tracks divided into sectors. The host computer sends instructions to the controller to read data from or write data to the disks, based on logical track and sector locations. Guided by instructions from the controller, the HSA pivots in an arc across the disk until it reaches the selected track of a disk, where the data is recorded or retrieved. We design and manufacture a substantial portion of the heads and magnetic media required for our products. Consequently, we are more dependent upon our own development and execution efforts and less able to take advan- tage of head and magnetic media technologies developed by other manufacturers. We depend on an external supply base for all remaining components and materials for use in our HDD product design and manufacturing. The key components used in the manufacture of our SSDs are the NAND semiconductor media and SoC which are acquired from third party suppliers. The NAND flash products used in our SSDs are sourced from multiple tier- one NAND manufacturers. We have established deep relationships with these vendors to assure continuous supply of NAND, as well as sufficient technical depth of technology access to enable continuous cost and technology leadership of our SSD product portfolio offering. Additionally, we are exploring strategic options to further strengthen and deepen our collaboration with select NAND partners to support the future growth of our SSD business. Additionally, the key component in our media players, the controller, is acquired from third party suppliers. We believe that our sourcing strategy currently enables us to have the business flexibility needed to select high quality, low cost suppliers as product designs and technologies evolve. We generally retain multiple suppliers for each 11 of our component requirements but in some instances use sole sources for business reasons. Currently, we believe that there are no major issues with component availability. For a discussion of associated risks, see Part I, Item 1A of this Annual Report on Form 10-K. Sales and Distribution We maintain sales offices in selected parts of the world including the major geographies of the Americas, Asia Pacific, Europe and the Middle East. Our international sales, which include sales to foreign subsidiaries of U.S. companies but do not include sales to U.S. subsidiaries of foreign companies, represented 79%, 80% and 78% of our net revenue for 2015, 2014 and 2013, respectively. Sales to international customers are subject to certain risks not normally encountered in domestic operations, including exposure to tariffs and various trade regulations. For a dis- cussion regarding associated risks, see Part I, Item 1A of this Annual Report on Form 10-K. We perform our marketing and advertising functions internally and through outside firms utilizing both consumer media and trade publications targeting various reseller and end-user categories. We also maintain customer relationships through direct communication and by providing information and support through our website. In accordance with standard storage industry practice, we provide distributors and retailers with limited price protection and programs under which we reimburse certain marketing expenditures. We also provide distributors, resellers and OEMs with other sales incentive programs. Original Equipment Manufacturers. OEMs, including large-scale datacenter operators, purchase our products, either directly or through a contract manufacturer such as an original design manufacturer (“ODM”), and assemble them into the devices they build. OEMs typically seek to qualify two or more providers for each generation of prod- ucts and generally will purchase products from those vendors for the life of that product. Many of our OEM customers utilize just-in-time inventory management processes. As a result, for certain OEMs, we maintain a base stock of fin- ished goods inventory in facilities located near or adjacent to the OEM’s operations. In addition, we also sell directly to cloud infrastructure players, which we classify as OEMs for purposes of channel information. Distributors. We use a broad group of distributors to sell our products to non-direct customers such as small computer and CE manufacturers, dealers, systems integrators, online retailers and other resellers. Distributors gen- erally enter into non-exclusive agreements with us for the purchase and redistribution of our products in specific terri- tories. Retailers. We sell our branded products directly to a select group of major retailers such as computer super- stores, warehouse clubs, online retailers, and computer electronics stores, and authorize sales through distributors to smaller retailers. The retail channel complements our other sales channels, while helping to build brand awareness for us and our products. We also sell our branded products through our websites. For each of 2015 and 2014, sales to Hewlett Packard Company accounted for 11% of our net revenue. For 2013, no single customer accounted for 10% or more of our net revenue. For a discussion of associated risks, refer to Part I, Item 1A of this Annual Report on Form 10-K. For additional information regarding revenue recognition, sales by geographic region and major customers, see Part II, Item 8, Notes 1 and 6 of the Notes to Consolidated Financial Statements included in this Annual Report on Form 10-K. Backlog A substantial portion of our orders are generally for shipments within 60 days of the placement of the order. Customers’ purchase orders may be canceled with relatively short notice to us, with little or no cost to the customer, or modified by customers to provide for delivery at a later date. In addition, for many of our OEMs utilizing just-in- time inventory, we do not generally require firm order commitments and instead, receive a periodic forecast of requirements. Therefore, backlog information as of the end of a particular period is not necessarily indicative of future levels of our revenue and profit and may not be comparable to prior periods. Seasonality We have historically experienced seasonal fluctuations in our business with higher levels of demand in the first and second quarters of our fiscal year as a result of increased customer spending. Seasonality can also be impacted by 12 the growth in emerging markets and macroeconomic conditions. For a discussion of associated risks, see Part I, Item 1A of this Annual Report on Form 10-K. Service and Warranty We generally warrant our newly manufactured products against defects in materials and workmanship from one to five years from the date of manufacture depending on the type of product. Our warranty obligation is generally limited to repair or replacement. We have engaged third parties in various countries in multiple regions to provide various levels of testing, processing or recertification of returned products for our customers. For a further discussion of our service and warranty policy, see Part II, Item 8, Note 1 to the Notes to Consolidated Financial Statements included in this Annual Report on Form 10-K. Environmental Regulation We are subject to a variety of U.S. and foreign laws and regulations in connection with our operations and relat- ing to the protection of the environment, including those governing discharges of pollutants into the air and water, the management and disposal of hazardous substances, and the cleanup of contaminated sites. Some of our operations require environmental permits and controls to prevent and reduce air and water pollution. These permits are subject to modification, renewal and revocation by issuing authorities. We believe that we have obtained or are in the process of obtaining all necessary environmental permits for our operations. We have established environmental management systems and continually update our environmental policies and standard operating procedures for our operations worldwide. We believe that our operations are in material com- pliance with applicable environmental laws, regulations and permits. We budget for operating and capital costs on an ongoing basis to comply with environmental laws. Our properties have in some cases been operated for many years and may contain soil or groundwater con- tamination. In certain of our facilities we are undertaking voluntary monitoring of soil and groundwater. Based on available information, including our voluntary monitoring activities, we do not believe that we have a current affirma- tive legal obligation for any remedial action. For a discussion of associated risks, see Part I, Item 1A of this Annual Report on Form 10-K. Employees As of July 3, 2015, we employed a total of 76,449 employees worldwide, excluding temporary employees and contractors. Many of our employees are highly skilled, and our continued success depends in part upon our ability to attract and retain such employees. Accordingly, we offer employee benefit programs that we believe are, in the aggregate, competitive with those offered by our competitors. While the substantial majority of our employees are not party to a collective bargaining agreement, a majority of our employees in Japan and China are subject to a collective bargaining agreement. We consider our employee rela- tions to be good. For a discussion of associated risks, see Part I, Item 1A of this Annual Report on Form 10-K. Available Information We maintain an Internet website at www.westerndigital.com. Our Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and amendments to reports filed or furnished pursuant to Sec- tions 13(a) and 15(d) of the Securities Exchange Act of 1934, as amended, are available on our website at www.westerndigital.com, free of charge, as soon as reasonably practicable after the electronic filing of these reports with, or furnishing of these reports to, the SEC. Any materials we file with the SEC are available at the SEC’s Public Reference Room at 100 F Street, NE, Washington, DC 20549. Additional information about the operation of the Public Reference Room can also be obtained by calling the SEC at 1-800-SEC-0330. In addition, the SEC maintains a website at www.sec.gov that contains reports, proxy and information statements, and other information regarding issuers that file electronically with the SEC, including us. 13 Executive Officers of the Registrant Listed below are all of our executive officers, followed by a brief account of their business experience during the past five years. Executive officers are normally appointed annually by the Board of Directors at a meeting of the direc- tors immediately following the Annual Meeting of Stockholders. There are no family relationships among these offi- cers nor any arrangements or understandings between any officer and any other person pursuant to which an officer was selected. Name Stephen D. Milligan . . . . . . . . . . . James J. Murphy . . . . . . . . . . . . . Michael D. Cordano . . . . . . . . . . . Olivier M. Leonetti . . . . . . . . . . . . Mark P. Long . . . . . . . . . . . . . . . . Michael C. Ray . . . . . . . . . . . . . . . Age 52 56 51 50 48 47 Position President and Chief Executive Officer President, WD Subsidiary President, HGST Subsidiary Chief Financial Officer Executive Vice President, Chief Strategy Officer Senior Vice President, General Counsel, Secretary Mr. Milligan re-joined us in March 2012 to serve as our President following our acquisition of HGST and was appointed Chief Executive Officer in January 2013. Mr. Milligan has served on our Board of Directors since January 2013. He served as HGST’s President from March 2009 to December 2009 and as its President and Chief Executive Officer from December 2009 until our acquisition of HGST in March 2012. From September 2007 to October 2009, Mr. Milligan served as HGST’s Chief Financial Officer. From January 2004 to September 2007, Mr. Milligan served as Western Digital’s Chief Financial Officer and from September 2002 to January 2004, Mr. Milligan served as West- ern Digital’s Senior Vice President, Finance. From April 1997 to September 2002, Mr. Milligan held various financial and accounting roles of increasing responsibility at Dell Inc. Prior to joining Dell, Mr. Milligan was employed at Price Waterhouse for 12 years. Mr. Milligan has served on the board of directors of Ross Stores, Inc. since January 2015. Mr. Murphy was appointed as President of the WD subsidiary in November 2013. He previously served as our Executive Vice President, Storage Products and Worldwide Sales from December 2012 to November 2013. Prior to that, he served as our Executive Vice President, Worldwide Sales from August 2010 to December 2012, as Senior Vice President, Worldwide Sales and Sales Operations from 2007 to 2010, as Vice President, Worldwide Sales and Oper- ations from 2005 to 2007, and as Vice President, Asia Pacific from 2003 to 2005. Prior to that, Mr. Murphy served in various roles at Read-Rite Corporation, including as the Executive Vice President, Customer Business Units, prior to our acquisition of Read-Rite Corporation’s assets in 2003. Mr. Cordano joined us in March 2012 in connection with our acquisition of HGST. Mr. Cordano was appointed President of our HGST subsidiary in July 2012. Prior to that, Mr. Cordano served as HGST’s Executive Vice Presi- dent, Sales & Marketing, and President, Branded Business, from April 2009 to March 2012. From February 2005 to April 2009, Mr. Cordano served as Chief Executive Officer and co-founder of Fabrik, Inc., which was acquired by HGST in April 2009. From 1994 to February 2005, Mr. Cordano served in various roles of increasing responsibility at Maxtor Corporation, including as the Executive Vice President of Worldwide Sales and Marketing from April 2001 until February 2005, where he formed and managed the Branded Products Business Unit. Mr. Leonetti was appointed as our Executive Vice President and Chief Financial Officer in September 2014. Mr. Leonetti served as Vice President, Finance — Global Commercial Organization, at Amgen, Inc., a global pharmaceutical company, from April 2011 to September 2014, where he was responsible for implementing worldwide product development and commercial strategies and driving global restructuring programs. From July 1997 to April 2011, Mr. Leonetti served in various senior finance capacities at Dell Inc., including most recently as Vice President, Finance, Worldwide Consumer Division. Prior to that, Mr. Leonetti served in various worldwide finance capacities with Lex Rac Service plc, Braun UK Ltd and Gillette Industries Limited. Mr. Long was appointed as our Executive Vice President, Chief Strategy Officer, effective August 2015 and, prior to that, served as Executive Vice President, Strategy & Corporate Development, since February 2013. Prior to that, from March 2012 to February 2013, he served in various consulting capacities for WDC. Prior to that, from July 2010 to March 2012, he served as senior vice president, strategy and corporate development at HGST, which was 14 acquired by us in March 2012. From August 2005 to July 2010, he served as managing director of VisionPoint Capi- tal, where he provided merger and acquisition and corporate finance services to a range of technology companies, including Fabrik, Inc., which was acquired by HGST in April 2009. Prior to that, Mr. Long served as a senior execu- tive with both public and private venture-backed technology companies and was an investment banker with Credit Suisse First Boston and Deutsche Bank Securities. Among his duties as our Executive Vice President, Strategy & Corporate Development, Mr. Long also leads Western Digital Capital, our wholly owned strategic investment fund. Mr. Ray was appointed as our Senior Vice President, General Counsel and Secretary in April 2011. From October 2010 to April 2011, Mr. Ray served as our Vice President, General Counsel and Secretary. From September 2000 to October 2010, Mr. Ray served in a number of positions in our legal department, ranging from Senior Counsel to Vice President, Legal Services. From September 1998 to September 2000, Mr. Ray served as corporate counsel for Wynn’s International, Inc. Prior to that, he served as a judicial clerk to the U.S. District Court, Central District of California and practiced law at O’Melveny & Myers LLP. Item 1A. Risk Factors The business, financial condition and operating results of the Company can be affected by a number of risks and uncertainties, whether currently known or unknown, any one or more of which could, directly or indirectly, cause the Company’s actual results of operations and financial condition to vary materially from past, or from anticipated future, results of operations and financial condition. The risks and uncertainties discussed below are not the only ones facing our business, but do represent those risks and uncertainties that we believe are material to us. Additional risks and uncertainties not presently known to us or that we currently deem immaterial may also adversely affect our business, financial condition, results of operations or the market price of our common stock. If we fail to realize the anticipated benefits from our acquisition of HGST, our business and financial condition may be adversely affected. In connection with obtaining the regulatory approvals required to complete the acquisition of HGST, we agreed to certain conditions required by MOFCOM, including adopting measures to keep HGST as an independent com- petitor until MOFCOM agrees otherwise (with the minimum period being two years from the March 8, 2012 closing date of the acquisition). We worked closely with MOFCOM to finalize an operations plan that outlines in more detail the conditions of the competitive requirement. Compliance with these measures has adversely affected, and we believe will continue to adversely affect, our business and financial conditions in the following ways: ‰ limits our ability to integrate the businesses of our HGST and WD subsidiaries (and we do not expect to achieve significant operating expense synergies while the hold separate condition continues to exist); ‰ has caused, and could cause further, difficulties in retaining key employees and delays or uncertainties in mak- ing decisions about the combined business; ‰ has resulted in, and could result in additional, significant costs (including higher capital expenditures relative to our competitors as a result of maintaining separate functions in several areas); and ‰ has required, and could require additional, changes in business practices. In March 2014, we submitted an application to MOFCOM requesting that the regulatory restrictions be lifted. In December 2014, we successfully resolved two non-compliance matters with MOFCOM, relating to: (1) the orga- nization of a WDC department that included several former HGST employees, and (2) the realignment of the owner- ship structure of an indirect subsidiary of WDC. We cannot predict whether or when the regulatory restrictions will be wholly or partially lifted or whether we will be able to realize the anticipated benefits of our acquisition of HGST even if the restrictions are wholly or partially lifted. 15 Adverse global economic conditions and credit market uncertainty could harm our business, results of operations and financial condition. Adverse global economic conditions and uncertain conditions in the credit market have had, and in the future could have, a significant adverse effect on our company and on the storage industry as a whole. Several factors contrib- ute to these conditions and this uncertainty, including, but not limited to, volatility in the financial and real estate markets, cost increases and other macroeconomic factors. Some of the risks and uncertainties we face as a result of these conditions include the following: ‰ Volatile Demand. Our direct and indirect customers may delay or reduce their purchases of our products and systems containing our products. In addition, many of our customers rely on credit financing to purchase our products. If negative conditions in the global credit markets prevent our customers’ access to credit, product orders may decrease, which could result in lower revenue. Likewise, if our suppliers, sub-suppliers and sub- contractors (collectively referred to as “suppliers”) face challenges in obtaining credit, in selling their products or otherwise in operating their businesses, they may be unable to offer the materials we use to manufacture our products. These actions could result in reductions in our revenue and increased operating costs, which could adversely affect our business, results of operations and financial condition. ‰ Restructuring Activities. If demand for our products slows as a result of a deterioration in economic conditions, we may undertake restructuring activities to realign our cost structure with softening demand. The occurrence of restructuring activities could result in impairment charges and other expenses, which could adversely impact our results of operations or financial condition. ‰ Credit Volatility and Loss of Receivables. We extend credit and payment terms to some of our customers. In addition to ongoing credit evaluations of our customers’ financial condition, we traditionally seek to mitigate our credit risk by purchasing credit insurance on certain of our accounts receivable balances. As a result of the continued uncertainty and volatility in global economic conditions, however, we may find it increasingly diffi- cult to be able to insure these accounts receivable. We could suffer significant losses if a customer whose accounts receivable we have not insured, or have underinsured, fails and is unable to pay us. Additionally, negative or uncertain global economic conditions increase the risk that if a customer whose accounts receivable we have insured fails, the financial condition of the insurance carrier for such customer account may have also deteriorated such that it cannot cover our loss. A significant loss of an accounts receivable that we cannot recover through credit insurance would have a negative impact on our financial results. ‰ Impairment Charges. Negative or uncertain global economic conditions could result in circumstances, such as a sustained decline in our stock price and market capitalization or a decrease in our forecasted cash flows such that they are insufficient, indicating that the carrying value of our long-lived assets or goodwill may be impaired. If we are required to record a significant charge to earnings in our consolidated financial statements because an impairment of our long-lived assets or goodwill is determined, our results of operations will be adversely affected. We participate in a highly competitive industry that is subject to declining average selling prices (“ASPs”), volatile gross margins and significant shifts in market share, all of which could adversely affect our operating results. Demand for our devices, software and solutions that we offer to our customers, which we refer to in this Item 1A as our “products”, depends in large part on the demand for systems manufactured by our customers and on storage upgrades to existing systems. The demand for systems has been volatile in the past and often has had an exaggerated effect on the demand for our products in any given period. As a result, the storage market has experienced periods of excess capacity, which can lead to liquidation of excess inventories and more intense price competition. If more intense price competition occurs, we may be forced to lower prices sooner and more than expected, which could adversely impact revenue and gross margins. In addition, we compete based on our ability to offer our customers competitive solutions that provide the most current and desired product and service features. We expect that competition will continue to be intense, and there is a risk that our competitors’ products may be less costly, provide better perform- ance or include additional features when compared to our products. Our ASPs and gross margins also tend to decline when there is a shift in the mix of product sales, and sales of lower priced products increase relative to those of higher priced products. Further, we face potential gross margin pressures resulting from our ASPs declining more rapidly 16 than our cost of goods sold. In addition, rapid technological changes often reduce the volume and profitability of sales of existing products and increase the risk of inventory obsolescence. These factors, along with others, may result in significant shifts in market share among the industry’s major participants, including a substantial decrease in our market share. Our failure to accurately forecast market and customer demand for our products, or to quickly adjust to forecast changes, could adversely affect our business and financial results or operating efficiencies. The data storage industry faces difficulties in accurately forecasting market and customer demand for its prod- ucts. The variety and volume of products we manufacture is based in part on these forecasts. Accurately forecasting demand has become increasingly difficult for us, our customers and our suppliers in light of the volatility in global economic conditions and industry consolidation, resulting in less availability of historical market data for certain product segments. Further, for many of our OEMs utilizing just-in-time inventory, we do not generally require firm order commitments and instead receive a periodic forecast of requirements, which may prove to be inaccurate. In addition, because our products are designed to be largely interchangeable with competitors’ products, our demand forecasts may be impacted significantly by the strategic actions of our competitors. As forecasting demand becomes more difficult, the risk that our forecasts are not in line with demand increases. If our forecasts exceed actual market demand, then we could experience periods of product oversupply and price decreases, which could impact our financial performance. If market demand increases significantly beyond our forecasts or beyond our ability to add manufactur- ing capacity, then we may not be able to satisfy customer product needs, possibly resulting in a loss of market share if our competitors are able to meet customer demands. We experience significant sales seasonality and cyclicality, which could cause our operating results to fluctuate. Sales of computer systems, storage subsystems, gaming consoles and CE tend to be seasonal and cyclical, and therefore we expect to continue to experience seasonality and cyclicality in our business as we respond to variations in our customers’ demand for our products. However, changes in seasonal and cyclical patterns have made it, and could continue to make it, more difficult for us to forecast demand, especially as a result of the current macroeconomic envi- ronment. Changes in the product or channel mix of our business can also impact seasonal and cyclical patterns, adding complexity in forecasting demand. Seasonality and cyclicality also may lead to higher volatility in our stock price. It is difficult for us to evaluate the degree to which seasonality and cyclicality may affect our stock price or business in future periods because of the rate and unpredictability of product transitions and new product introductions and macroeconomic conditions. Our sales to the CE, cloud computing, network attached storage (NAS), surveillance and enterprise markets, which have accounted for and may continue accounting for an increasing percentage of our overall revenue, may grow at a slower rate than current estimates or not at all, which could materially adversely impact our operating results. The secular growth of digital data has resulted in a more diversified mix of revenue from the CE, cloud comput- ing, NAS, surveillance and enterprise markets. As sales into these markets have become a more significant portion of our revenue, events or circumstances that adversely impact demand in these markets, or our inability to address that demand successfully, could materially adversely impact our operating results. For example, demand in, or our sales to, these markets may be adversely affected by the following: ‰ Mobile Devices. There has been and continues to be a rapid growth in devices that do not contain a hard drive such as tablet computers and smart phones. As tablet computers and smart phones provide many of the same capabilities as PCs, they have displaced or materially affected, and we expect will continue to displace or materially affect, the demand for PCs. If we are not successful in adapting our product offerings to include disk drives or alternative storage solutions that address these devices, demand for our products in these markets may decrease and our financial results could be materially adversely affected. ‰ Cloud Computing. Consumers traditionally have stored their data on their PC, often supplemented with personal external storage devices. Most businesses also include similar local storage as a primary or secondary storage location. This storage is typically provided by HDDs. With cloud computing, applications and data are hosted, accessed and processed through a third-party provider over a broadband Internet connection, poten- tially reducing or eliminating the need for, among other things, significant storage inside the accessing com- puter. Even if we are successful at increasing revenues from sales to cloud computing customers, if we are not 17 successful in manufacturing compelling products to address the cloud computing opportunity, demand for our products in these other markets may decrease and our financial results could be materially adversely affected. Demand for cloud computing solutions themselves may be volatile due to differing patterns of technology adoption and innovation, improved data storage efficiency by cloud computing service providers, and concerns about data protection by end users. ‰ Obsolete Inventory. In some cases, products we manufacture for these markets are uniquely configured for a single customer’s application, creating a risk of obsolete inventory if anticipated demand is not actually real- ized. In addition, rapid technological change in our industry increases the risk of inventory obsolescence. ‰ Macroeconomic Conditions. Consumer spending has been, and may continue to be, adversely affected in many regions due to negative macroeconomic conditions and high unemployment levels. Please see the risk factor entitled “Adverse global economic conditions and credit market uncertainty could harm our business, results of operations and financial condition.” for more risks and uncertainties relating to macroeconomic conditions. In addition, demand in these markets also could be negatively impacted by developments in the regulation and enforcement of digital rights management and the emergence of new technologies, such as data deduplication, com- pression and storage virtualization. If we are not able to respond appropriately, these factors could lead to our custom- ers’ storage needs being satisfied at lower prices with lower capacity hard drives or solid-state storage products, thereby decreasing our revenue or putting us at a disadvantage to competing storage technologies. As a result, even with increasing aggregate demand for digital storage, if we fail to anticipate or timely respond to these developments in the demand for storage, our ASPs could decline, which could adversely affect our operating results. Furthermore, our ability to accurately read and respond to market trends, such as trends relating to the Internet or big data, could harm our results. Deterioration in the client compute market (“the PC market”) has accelerated, which could cause our operating results to suffer. While sales to non-PC markets are becoming a more significant source of revenue, sales to the PC market remain an important part of our business. The PC market, however, has been, and may continue to be, adversely affected by the growth of tablet computers, smart phones and similar devices that perform many of the same capabilities as PCs, the lengthening of product life cycles and macroeconomic conditions. We believe that the deterioration of the PC market has accelerated recently, and that this accelerated deterioration may continue or further accelerate, which could cause our operating results to suffer. Additionally, if demand in the PC market is worse than expected as a result of these or other conditions, demand for our products in the PC market may decrease at a faster rate and our operating results may be adversely affected. Selling to the retail market is an important part of our business, and if we fail to maintain and grow our market share or gain market acceptance of our branded products, our operating results could suffer. Selling branded products is an important part of our business, and as our branded products revenue increases as a portion of our overall revenue, our success in the retail market becomes increasingly important to our operating results. Our success in the retail market depends in large part on our ability to maintain our brand image and corporate reputa- tion and to expand into and gain market acceptance of our products in multiple channels. We must successfully respond to the rapid change away from traditional advertising media, marketing and sales methods to the use of Internet media and advertising, particularly social media, and online sales, or our brand and retail sales could be negatively affected. Adverse publicity, whether or not justified, or allegations of product or service quality issues, even if false or unfounded, could tarnish our reputation and cause our customers to choose products offered by our competitors. In addition, the pro- liferation of new methods of mass communication facilitated by the Internet makes it easier for false or unfounded allega- tions to adversely affect our brand image and reputation. If customers no longer maintain a preference for WD®, HGST™ or G-Technology™ brand products, our operating results may be adversely affected. Sales in the distribution channel are important to our business, and if we fail to respond to demand changes in distribution markets or if distribution markets for our products weaken, our operating results could suffer. Our distribution customers typically sell to small computer manufacturers, dealers, systems integrators and other resellers. We face significant competition in this channel as a result of limited product qualification programs and a 18 significant focus on price and availability of product. In addition, the PC market is experiencing a shift to notebook and other mobile devices and, as a result, more computing devices are being delivered to the market as complete systems, which could weaken the distribution market. If we fail to respond to changes in demand in the distribution market, our operating results could suffer. Additionally, if the distribution market weakens as a result of a slowing PC growth rate, technology transitions or a significant change in consumer buying preference, or if we experience significant price declines due to demand changes in the distribution channel, then our operating results would be adversely affected. Loss of market share with or by a key customer, or consolidation among our customer base, could harm our operating results. During the quarter ended July 3, 2015, 44% of our revenue came from sales to our top 10 customers. These customers have a variety of suppliers to choose from and therefore can make substantial demands on us, including demands on product pricing and on contractual terms, often resulting in the allocation of risk to us as the supplier. Our ability to maintain strong relationships with our principal customers is essential to our future performance. If we lose a key customer, if any of our key customers reduce their orders of our products or require us to reduce our prices before we are able to reduce costs, if a customer is acquired by one of our competitors or if a key customer suffers financial hardship, our operating results would likely be harmed. Additionally, if there is consolidation among our customer base, our customers may be able to command increased leverage in negotiating prices and other terms of sale, which could adversely affect our profitability. In addi- tion, if, as a result of increased leverage, customer pressures require us to reduce our pricing such that our gross mar- gins are diminished, we could decide not to sell our products to a particular customer, which could result in a decrease in our revenue. Consolidation among our customer base may also lead to reduced demand for our products, replace- ment of our products by the combined entity with those of our competitors and cancellations of orders, each of which could harm our operating results. Also, the storage ecosystem is constantly evolving, and our traditional customer base is changing. Fewer compa- nies now hold greater market share for certain applications and services, such as social media, shopping and streaming media. As a result, the competitive landscape is changing, giving these companies increased leverage in negotiating prices and other terms of sale, which could adversely affect our profitability. In addition, the changes in our evolving customer base create new selling and distribution patterns to which we must adapt. To remain competitive, we must respond to these changes by ensuring we have proper scale in this evolving market, as well as offer products that meet the technological requirements of this customer base at competitive pricing points. To the extent we are not successful in adequately responding to these changes, our operating results could be harmed. Expansion into new markets may increase the complexity of our business, cause us to increase our research and development expenses to develop new products and technologies or cause our capital expenditures to increase, and if we are unable to successfully adapt our business processes and product offerings as required by these new markets, our ability to grow will be adversely affected. To remain a significant supplier in the storage industry and to expand into new markets, we will need to offer a broad range of storage products to our customers. We currently offer a variety of 3.5-inch and 2.5-inch hard drives, solid state drives and systems and other products for the PC, enterprise, data center and other storage markets. As we expand our product lines to sell into new markets, such as our recent entry into active archive systems, the overall complexity of our business may increase at an accelerated rate and we may become subject to different market dynam- ics. These dynamics may include, among other things, different demand volume, seasonality, product requirements, sales channels, and warranty and return policies. In addition, expansion into other markets may result in increases in research and development expenses and substantial investments in manufacturing capability or technology enhance- ments. If we fail to successfully expand into new markets with products that we do not currently offer, we may lose business to our competitors or new entrants who offer these products. Our vertical integration of head and magnetic media manufacturing makes us dependent on our ability to timely and cost- effectively develop heads and magnetic media with leading technology and overall quality, increasing capital expenditure costs and asset utilization risks for our business. We develop and manufacture a substantial portion of the heads and magnetic media used in the hard drive prod- ucts we produce. Consequently, we are more dependent upon our own development and execution efforts and less able 19 to take advantage of head and magnetic media technologies developed by other manufacturers. Technology transition for head and magnetic media designs is critical to increasing our volume production of heads and magnetic media. We may be unsuccessful in timely and cost-effectively developing and manufacturing heads or magnetic media for prod- ucts using future technologies. We also may not effectively transition our head or magnetic media design and technology to achieve acceptable manufacturing yields using the technologies necessary to satisfy our customers’ product needs, or we may encounter quality problems with the heads or magnetic media we manufacture. If we are unable to timely and cost-effectively develop heads and magnetic media with leading technology and overall quality, our ability to sell our products may be significantly diminished, which could materially and adversely affect our busi- ness and financial results. In addition, as a result of our vertical integration of head and magnetic media manufacturing, we make more capital investments and carry a higher percentage of fixed costs than we would if we were not vertically integrated. If our overall level of production decreases for any reason, and we are unable to reduce our fixed costs to match sales, our head or magnetic media manufacturing assets may face underutilization that may impact our operating results. We are therefore subject to additional risks related to overall asset utilization, including the need to operate at high levels of utilization to drive competitive costs and the need for assured supply of components that we do not manufacture ourselves. In addition, as a result of adverse labor rates or availability, we may be required to increase investments in automation, which may cause our capital expenditures to increase. If we do not adequately address the challenges related to our head or magnetic media manufacturing operations, our ongoing operations could be disrupted, resulting in a decrease in our revenue or profit margins and negatively impacting our operating results. We make significant investments in research and development to improve our technology and develop new technologies, and unsuccessful investments or investments that are not cost effective could materially adversely affect our business, financial condition and results of operations. As a leading supplier of hard drives and a major supplier of enterprise SSDs, we make significant investments to maintain our existing products and to lead innovation and development of new technologies. This strategy requires us to make significant investments in research and development and, in order to remain competitive, we may increase our capital expenditures and expenses above our historical run-rate model. The current inherent physical limitations associated with storage technologies are resulting in more costly capital expenditures that reduce the cost benefits of technology transitions and could limit our ability to keep pace with reductions in ASPs. These investments may not result in viable technologies or products, and even if they do result in viable technologies or products, they may not be profitable or accepted by the market. Significant investments in unsuccessful or cost-ineffective research and development efforts could materially adversely affect our business, financial condition and results of operations. In addition, increased investments in technology could cause our cost structure to fall out of alignment with demand for our products, which would have a negative impact on our financial results. Current or future competitors may gain a technology advantage or develop an advantageous cost structure that we cannot match. It may be possible for our current or future competitors to gain an advantage in product technology, manufactur- ing technology, or process technology, which may allow them to offer products or services that have a significant advantage over the products and services that we offer. Advantages could be in capacity, performance, reliability, serv- iceability, or other attributes. A competitive cost structure for our products, including critical components, labor and overhead, is also critical to the success of our business. We may be at a competitive disadvantage to any companies that are able to gain a technological or cost structure advantage. Consolidation within the data storage industry could provide competitive advantages to our competitors. The data storage industry as a whole has experienced consolidation over the past several years through acquis- itions, consolidations and decisions by industry players to exit the industry. Consolidation across the industry, includ- ing by our competitors, may enhance their capacity, abilities and resources and lower their cost structure, causing us to be at a competitive disadvantage. 20 Some of our competitors with diversified business units outside of storage products, may, over extended periods of time, sell storage products at prices that we cannot profitably match. Some of our competitors earn a significant portion of their revenue from business units outside of storage prod- ucts. Because they do not depend solely on sales of storage products to achieve profitability, they may sell storage products at lower prices and operate their storage business unit at a loss over an extended period of time while still remaining profitable overall. In addition, if these competitors can increase sales of non-storage products to the same customers, they may benefit from selling their storage products at lower prices. Our operating results may be adversely affected if we cannot successfully compete with the pricing by these companies. If we fail to qualify our products with our customers, it may have a significant adverse impact on our sales and margins. We regularly engage in new product qualification with our customers. Once a product is accepted for qual- ification testing, failures or delays in the qualification process can result in delayed or reduced product sales, reduced product margins caused by having to continue to offer a more costly current generation product, or lost sales to that customer until the next generation of products is introduced. The effect of missing a product qualification oppor- tunity is magnified by the limited number of high volume OEMs, which continue to consolidate their share of the storage markets. Likewise, if product life cycles lengthen, we may have a significantly longer period to wait before we have an opportunity to qualify a new product with a customer, which could reduce our profits because we expect declining gross margins on our current generation products as a result of competitive pressures. We are subject to risks related to product defects or the unintended use of our products, which could result in product recalls or epidemic failures and could subject us to warranty claims in excess of our warranty provisions or which are greater than anticipated. We warrant the majority of our products for periods of one to five years. We test our products in our manufactur- ing facilities through a variety of means. However, our testing may fail to reveal defects in our products that may not become apparent until after the products have been sold into the market. In addition, our products may be used in a manner that is not intended or anticipated by us, resulting in potential liability. Accordingly, there is a risk that product defects will occur, which could require a product recall. Product recalls can be expensive to implement. As part of a product recall, we may be required or choose to replace the defective product. Moreover, there is a risk that product defects may trigger an epidemic failure clause in a customer agreement. If an epidemic failure occurs, we may be required to replace or refund the value of the defective product and to cover certain other costs associated with the consequences of the epidemic failure. In addition, a product recall or epidemic failure may damage our reputation or customer relationships, and may cause us to lose market share with our customers, including our OEM and ODM customers. Our standard warranties contain limits on damages and exclusions of liability for consequential damages and for misuse, improper installation, alteration, accident or mishandling while in the possession of someone other than us. We record an accrual for estimated warranty costs at the time revenue is recognized. We may incur additional expenses if our warranty provision do not reflect the actual cost of resolving issues related to defects in our products, whether as a result of a product recall, epidemic failure or otherwise. If these additional expenses are significant, it could adversely affect our business, financial condition and operating results. In addition, third-party components or applications that we incorporate or use in our products may contain defects in design or manufacturing that could unexpectedly result in epidemic failures and subject us to liability. Because we are dependent on a limited number of qualified suppliers for components, sub-assemblies, equipment, consumables, raw materials, and logistics, a supplier’s inability, unwillingness, or failure to support us in a timely manner with goods or services at a quality level and cost acceptable to us can adversely affect our margins, revenues and operating results. We depend on an external supply base for technologies, software (including firmware), components, equipment and materials for use in our product design and manufacturing. We also depend on service suppliers for providing technical support for our products. In addition, we use logistics partners to manage our just-in-time hubs, dis- tribution centers and freight from suppliers to our factories and from our factories to our customers throughout the world. Many of these components and much of this equipment must be specifically designed to be compatible for use 21 in our products or for developing and manufacturing our future products, and are only available from a limited num- ber of suppliers, some of whom are our sole-source suppliers. We are therefore dependent on these suppliers to be able and willing to dedicate adequate engineering resources to develop components that can be successfully integrated into our products, technology and equipment that can be used to develop and manufacture our next-generation products efficiently. Where we rely on a limited number of suppliers or a single supplier, the risk of supplier loss due to industry consolidation is enhanced. Many of the risks that affect us also affect our supply base, including, but not limited to, having single site manufacturing locations based in high risk regions of the world, macro and local economic conditions, shortages of commodity materials, proper management of technology transitions, natural disasters, geo-political risks, compliance with legal requirements, financial instability and exposure to intellectual property and other litigation, including an injunction or other action that could delay shipping. If any of these risks were to affect our suppliers, we could also be adversely affected, especially in the case of products, components or services that are single-sourced. For example, if suppliers are facing increased costs due to the above risks, they may require us to enter into long-term volume agree- ments to shift the burden of fixed costs to us. Further, we work closely with many of our suppliers to develop new technologies and, as a result, we may become subject to litigation from our suppliers or third parties. Without a capable and financially stable supply base that has established appropriate relationships within the supply chain and has implemented business processes, strategies and risk management safeguards, we would be unable to develop our products, manufacture them in high volumes, and distribute them to our customers to execute our business plans effectively. As PC demand declines, competition increases from NAND and other consumer devices, the total available market for HDDs decreases and costs increase, these suppliers may reevaluate their business models. Our suppliers may be acquired by our competitors, consolidate, or decide to exit the industry, redirect their invest- ments and increase costs to us, each of which may have an adverse effect on our business and operations. In addition, moving to new technologies may require us to align to, and build, a new supply base, such as NAND flash. In the case of NAND suppliers, many of which are involved in developing storage products such as SSD that, in some cases, compete with our products. Our success in these new product areas may be dependent on our ability and their willingness to develop close relationships, with preferential agreements. Where this cannot be done, our business and operations may be adversely affected. In addition to an external supply base, we also rely on an internal supply chain of heads, media and media sub- strate. Please see the risk factors entitled, “A fundamental change in storage technologies could result in significant increases in our costs and could put us at a competitive disadvantage,” and “If we do not properly manage technology transitions, our competitiveness and operating results may be negatively affected,”for a review of some of the risks related to our internal sup- ply. Price volatility, shortages of critical materials or components, or use by other industries of materials and components used in the storage industry, may negatively impact our operating results. Increases in the cost for certain critical materials and components and oil may increase our costs of manufacturing and transporting our products and key components and may result in lower operating margins if we are unable to pass these increased costs on to our customers. Shortages of critical components such as DRAM and NAND flash, or materials such as glass substrates, stainless steel, aluminum, nickel, neodymium, ruthenium, platinum or cerium, may increase our costs and may result in lower operating margins if we are unable to find ways to mitigate these increased costs. We or our suppliers acquire certain precious metals and rare earth metals like ruthenium, platinum, neo- dymium and cerium, which are critical to the manufacture of components in our products from a number of countries, including the People’s Republic of China. The government of China or any other nation may impose regulations, quotas or embargoes upon these metals that would restrict the worldwide supply of such metals or increase their cost, both of which could negatively impact our operating results until alternative suppliers are sourced. Furthermore, if other high volume industries increase their demand for materials or components used in our products, our costs may further increase, which could have an adverse effect on our operating margins. In addition, shortages in other compo- nents and materials used in our customers’ products could result in a decrease in demand for our products, which would negatively impact our operating results. 22 Contractual commitments with component suppliers may result in us paying increased charges and cash advances for such components or may cause us to have inadequate or excess component inventory. To reduce the risk of component shortages, we attempt to provide significant lead times when buying compo- nents, which may subject us to cancellation charges if we cancel orders as a result of technology transitions or changes in our component needs. In addition, we may from time to time enter into contractual commitments with component suppliers in an effort to increase and stabilize the supply of those components and enable us to purchase such compo- nents at favorable prices. Some of these commitments may require us to buy a substantial number of components from the supplier or make significant cash advances to the supplier; however, these commitments may not result in a sat- isfactory increase or stabilization of the supply of such components. Furthermore, as a result of uncertain global eco- nomic conditions, our ability to forecast our requirements for these components has become increasingly difficult, therefore increasing the risk that our contractual commitments may not meet our actual supply requirements, which could cause us to have inadequate or excess component inventory and adversely affect our operating results and increase our operating costs. Changes in product life cycles could adversely affect our financial results. If product life cycles lengthen, we may need to develop new technologies or programs to reduce our costs on any particular product to maintain competitive pricing for that product. Longer product life cycles could also restrict our ability to transition customers to our newer products in a timely manner, or at all, negatively impacting our ability to recoup our significant research and development investments to improve our existing technology and develop new technologies. If product life cycles shorten, it may result in an increase in our overall expenses and a decrease in our gross margins, both of which could adversely affect our operating results. In addition, shortening of product life cycles also makes it more difficult to recover the cost of product development before the product becomes obsolete. Our fail- ure to recover the cost of product development in the future could adversely affect our operating results. A fundamental change in storage technologies could result in significant increases in our costs and could put us at a competitive disadvantage. Historically, when the industry experiences a fundamental change in storage technologies, any manufacturer that fails to successfully and timely adjust its designs and processes to accommodate the new technology fails to remain competitive. There are some revolutionary technologies, such as current-perpendicular-to-plane giant magneto- resistance, shingle magnetic recording, heat-assisted magnetic recording, patterned magnetic media and advanced signal processing that if implemented by a competitor on a commercially viable basis ahead of the industry, could put us at a competitive disadvantage. As a result of these technology shifts, we could incur substantial costs in developing new technologies, such as heads, magnetic media, and tools to remain competitive. If we fail to successfully imple- ment these new technologies, or if we are significantly slower than our competitors at implementing new tech- nologies, we may not be able to offer products with capacities that our customers desire, which could harm our operating results. The difficulty of introducing hard drives with higher levels of areal density and the challenges of reducing other costs may impact our ability to achieve historical levels of cost reduction. Storage capacity of the hard drive, as manufactured by us, is determined by the number of disks and each disk’s areal density. Areal density is a measure of the amount of magnetic bits that can be stored on the recording surface of the disk. Generally, the higher the areal density, the more information can be stored on a single platter. Higher areal densities require existing head and magnetic media technology to be improved or new technologies developed to accommodate more data on a single disk. Historically, we have been able to achieve a large percentage of cost reduc- tion through increases in areal density. Increases in areal density mean that the average drive we sell has fewer heads and disks for the same capacity and, therefore, may result in a lower component cost. However, increasing areal den- sity has become more difficult in the storage industry. If we are not able to increase areal density at the same rate as our competitors or at a rate that is expected by our customers, we may be required to include more components in our drives to meet demand without corresponding incremental revenue, which could negatively impact our operating margins and make achieving historical levels of cost reduction difficult or unlikely. Additionally, increases in areal 23 density may require us to make further capital expenditures on items such as new test equipment needed as a result of an increased number of gigabytes per platter. Our inability to achieve cost reductions could adversely affect our operating results. If we do not properly manage technology transitions, our competitiveness and operating results may be negatively affected. The storage markets in which we offer our products continuously undergo technology transitions that we must anticipate and adapt our products to address in a timely manner. If we fail to implement new technologies success- fully, or if we are slower than our competitors at implementing new technologies, we may not be able to com- petitively offer products that our customers desire, which could harm our operating results. If we do not properly manage new product development, our competitiveness and operating results may be negatively affected. As advances in computer hardware and software are made, our customers have demanded a more diversified port- folio of products with new and additional features. In some cases, this demand results in investments in new products for a particular market that do not necessarily expand overall market opportunity, which may negatively affect our operating results. In addition, the success of our new product introductions depends on a number of other factors, including: ‰ difficulties faced in manufacturing ramp; ‰ implementing at an acceptable cost product features expected by our customers; ‰ market acceptance/qualification; ‰ effective management of inventory levels in line with anticipated product demand; ‰ quality problems or other defects in the early stages of new product introduction and problems with compati- bility between our products and those of our customers that were not anticipated in the design of those prod- ucts; and ‰ our ability to increase our software development capability. In particular, as part of our growth strategy, we have made significant investments in active archive systems, which are designed to enable organizations to rapidly access massive long-term data stores. For example, our acquis- ition of Amplidata was partially driven by our strategy to expand in this area. We expect to continue to make sig- nificant investments in active archive systems. Our active archive systems may fail to gain market acceptance, or the market for active archive systems may not grow as we anticipate. We have also seen, and anticipate continuing to see, an increase in customers requesting that we develop prod- ucts, including software associated with our products, that incorporate open source software elements and operate in an open source environment. Adapting to this demand may cause product delays, placing us at a competitive dis- advantage. Open source products could also reduce our capability for product differentiation or innovation and our affected products could be diminished to commodity status, which we expect would place increased downward pres- sure on our margins. If we fail to successfully anticipate and manage issues associated with our product development generally, our business may suffer. If we fail to develop and introduce new products that are competitive against alternative storage technologies, our business may suffer. Our success depends in part on our ability to develop and introduce new products in a timely manner in order to keep pace with technology advancements. Newer storage technologies have successfully served mobility markets for products that cannot be serviced using traditional storage technologies. Advances in semiconductor technology have resulted in other emerging technologies that can be competitive with traditional storage technologies. For example, SSDs have significantly increased their penetration in notebook PCs in recent years. We believe that SSDs will increasingly replace HDDs in notebook and desktop PCs, and we currently do not offer client SSD solutions. We also expect that SSD penetration will increase in enterprise areas requiring high performance needs in advanced digital 24 computing. We may be unsuccessful in anticipating and developing new and improved products for the client, enter- prise and other storage markets in response to competing technologies. If our hard drive and solid state products fail to offer a superior value proposition to alternative storage products, we will be at a competitive disadvantage and our business will suffer. Our operations, and those of certain of our suppliers and customers, are concentrated in large, purpose-built facilities, subjecting us to substantial risk of damage or loss if operations at any of these facilities are disrupted. As a result of our cost structure and strategy of vertical integration, we conduct our operations at large, high volume, purpose-built facilities in California and throughout Asia. The facilities of many of our customers, our suppliers and our customers’ suppliers are also concentrated in certain geographic locations throughout Asia and else- where. A localized health risk affecting our employees at these facilities or the staff of our or our customers’ other suppliers, such as the spread of a pandemic influenza, could impair the total volume of our products that we are able to manufacture or sell, which would result in substantial harm to our operating results. Similarly, a fire, flood, earth- quake, tsunami or other natural disaster, condition or event such as political instability, civil unrest or a power outage that adversely affects any of these facilities, including access to or from these facilities by employees or logistics oper- ators, would significantly affect our ability to manufacture or sell our products, which would result in a substantial loss of sales and revenue and a substantial harm to our operating results. For example, prior to the 2011 flooding in Thailand, all of WD’s internal slider capacity and 60% of WD’s hard drive manufacturing capacity was in Thailand. As a result of the flooding in Thailand, WD’s facilities were inundated and temporarily shut down. During that period, WD’s ability to manufacture hard drives was significantly constrained, adversely affecting WD’s business, financial condition and results of operations. In addition, the concentration of our manufacturing sites could exacerbate the negative impacts resulting from localized labor unrest or other employment issues. A significant event that impacts any of our manufacturing sites, or the sites of our customers or suppliers, could adversely affect our abil- ity to manufacture or sell our products, and our business, financial condition and results of operations could suffer. Manufacturing, marketing and selling our products globally subjects us to numerous risks. We are subject to risks associated with our global manufacturing operations and global marketing and sales efforts, as well as risks associated with our utilization of and reliance on contract manufacturers, including: ‰ obtaining requisite governmental permits and approvals; ‰ currency exchange rate fluctuations or restrictions; ‰ political instability and civil unrest; ‰ limited transportation availability, delays, and extended time required for shipping, which risks may be com- pounded in periods of price declines; ‰ higher freight rates; ‰ labor challenges, including difficulties finding and retaining talent or responding to labor disputes or dis- ruptions; ‰ trade restrictions or higher tariffs; ‰ copyright levies or similar fees or taxes imposed in European and other countries; ‰ exchange, currency and tax controls and reallocations; ‰ increasing labor and overhead costs; and ‰ loss or non-renewal of favorable tax treatment under agreements or treaties with foreign tax authorities. Terrorist attacks may adversely affect our business and operating results. The continued threat of terrorist activity and other acts of war or hostility have created uncertainty in the finan- cial and insurance markets and have significantly increased the political, economic and social instability in some of the geographic areas in which we, our suppliers or our customers operate. Additionally, it is uncertain what impact the 25 reactions to such acts by various governmental agencies and security regulators worldwide will have on shipping costs. Acts of terrorism, either domestically or abroad, could create further uncertainties and instability. To the extent this results in disruption or delays of our manufacturing capabilities or shipments of our products, our business, operating results and financial condition could be adversely affected. Sudden disruptions to the availability of air transportation, or ocean or land freight lanes, could have an impact on our operations. We generally ship our products to our customers, and receive shipments from our suppliers, via air, ocean or land freight. The sudden unavailability or disruption of air transportation, cargo operations or ocean, rail or truck freight lanes caused by, among other things, labor difficulties or disputes, severe weather patterns or other natural disasters, or political instability or civil unrest, could impact our operating results by impairing our ability to timely and effi- ciently deliver our products. If our technology infrastructure, systems or products are compromised, damaged or interrupted by cyber attacks, data security breaches, other security problems, security vulnerabilities, design defects, or sustain system failures, our operating results and financial condition could be adversely affected. We experience cyber attacks of varying degrees on our technology infrastructure and systems and, as a result, unauthorized parties have obtained in the past, and may in the future obtain, access to our computer systems and networks. Cyber attacks can include computer viruses, computer denial-of-service attacks, worms, and other malicious software programs or other attacks, covert introduction of malware to computers and networks, impersonation of authorized users, and efforts to discover and exploit any security vulnerabilities or security weaknesses, as well as intentional or unintentional acts by employees or other insiders with access privileges, intentional acts of vandalism by third parties and sabotage. We believe cyber attack attempts are increasing in number and that cyber attackers are developing increasingly sophisticated systems and means to not only attack systems, but also to evade detection or to obscure their activities. Our products are also targets for cyber attacks. While some of our products contain encryption or security algorithms to protect third-party content or user-generated data stored on our products, these products could still be hacked or the encryption schemes could be compromised, breached, or circumvented by motivated and sophisticated attackers. In addition, our technology infrastructure and systems are vulnerable to damage or interruption from natural disasters, power loss and telecommunications failures. Further, our products contain sophisticated hardware and operating system software and applications that may contain security problems, security vulnerabilities, or defects in design or manufacture, including “bugs” and other problems that could interfere with the intended operation of our products. If efforts to breach our infrastructure, systems or products are successful or we are unable to protect against these risks, we could suffer interruptions, delays, or cessation of operations of our systems, and loss or misuse of proprietary or confidential information, intellectual property, or sensitive or personal information. Breaches of our infrastructure, systems or products could also cause our customers and other affected third parties to suffer loss or misuse of propri- etary or confidential information, intellectual property, or sensitive or personal information, and could harm our rela- tionships with customers and other third parties. As a result, we could experience additional costs, indemnification claims, litigation, and damage to our brand and reputation. All of these consequences could harm our reputation and our business and materially and adversely affect our operating results and financial condition. We are subject to laws, rules, and regulations in the U.S. and other countries relating to the collection, use, sharing, and security of third-party data including personal data, and our failure to comply with these laws, rules and regulations could subject us to proceedings by governmental entities or others and cause us to incur penalties, significant legal liability, or loss of customers, loss of revenue, and reputational harm. We are subject to laws, rules, and regulations in the U.S. and other countries relating to the collection, use, and security of third-party data including data that relates to or identifies an individual person. In many cases, these laws apply not only to third-party transactions, but also to transfers of information between us and our subsidiaries, and among us, our subsidiaries and other parties with which we have commercial relations. Our possession and use of 26 third-party data including personal data in conducting our business subjects us to legal and regulatory burdens that may require us to notify vendors, customers or employees or other parties with which we have commercial relations of a data security breach and to respond to regulatory inquiries and to enforcement proceedings. Global privacy and data protection legislation, enforcement, and policy activity in this area are rapidly expanding and evolving, and may be inconsistent from jurisdiction to jurisdiction. Compliance requirements and even our inadvertent failure to comply with applicable laws may cause us to incur substantial costs, subject us to proceedings by governmental entities or others, and cause us to incur penalties or other significant legal liability, or lead us to change our business practices. If we fail to identify, manage, complete and integrate acquisitions, investment opportunities or other significant transactions, which are a key part of our growth strategy, it may adversely affect our future results. We seek to be an industry-leading developer, manufacturer and provider of innovative storage solutions, balanc- ing our core hard drive business with growing investments in newer areas that we believe will provide us with higher growth opportunities. Acquisitions of, investment opportunities in, or other significant transactions with companies that are complementary to our business are a key part of our overall business strategy. For example, we completed the acquisitions of Amplidata in March 2015, Virident in October 2013, and sTec in September 2013. In order to pursue this part of our growth strategy successfully, we must continue to identify attractive acquisition or investment oppor- tunities, successfully complete the transactions, some of which may be large and complex, and manage post-closing issues such as integration of the acquired company or employees. We may not be able to continue to identify or com- plete appealing acquisition or investment opportunities given the intense competition for these transactions. Even if we identify and complete suitable corporate transactions, we may not be able to successfully address any integration challenges in a timely manner, or at all. Failing to successfully integrate or realign our business to take advantage of efficiencies or reduce redundancies of an acquisition may result in not realizing all or any of the anticipated benefits of the acquisition. In addition, failing to achieve the financial model projections for an acquisition may result in the incurrence of impairment charges and other expenses, both of which could adversely impact our results of operations or financial condition. Furthermore, we may agree to provide continuing service obligations or enter into other agreements in order to obtain certain regulatory approvals of our corporate transactions, and failure to satisfy these additional obligations could result in our failing to obtain regulatory approvals or the imposition of additional obliga- tions on us, any of which could adversely affect our business, financial condition and results of operations. Please also see the risk factor entitled “If we fail to realize the anticipated benefits from our acquisition of HGST on a timely basis, or at all, our business and financial condition may be adversely affected.” Our strategic relationships subject us to risks that could adversely affect our business, financial condition and results of operations. We have entered into strategic relationships with various partners to reduce the risk associated with relying on external suppliers for technologies, components, equipment and materials for use in our product design and manu- facturing. Please see the risk factor entitled “Because we are dependent on a limited number of qualified suppliers for compo- nents, sub-assemblies, equipment, consumables, raw materials, and logistics, a supplier’s inability, unwillingness, or failure to support us in a timely manner with goods or services at a quality level and cost acceptable to us can adversely affect our margins, revenues and operating results,” for a further description of the risks associated with our reliance on external suppliers. These strategic relationships are subject to various risks that could adversely affect the value of our investments and our results of operations. These risks include the following: ‰ our interests could diverge from our partners’ interests or we may not be able to agree with co-venturers on ongoing activities, or on the amount, timing or nature of further investments in the relationship ‰ we may experience difficulties and delays in ramping production at, and transferring technology to, such ven- tures; ‰ our control over the operations of our ventures is limited; ‰ due to financial constraints, our co-venturers may be unable to meet their commitments to us or may pose credit risks for our transactions with them; ‰ due to differing business models or long-term business goals, our partners may decide not to join us in funding capital investment by our ventures, which may result in higher levels of cash expenditures by us; 27 ‰ we may lose the rights to technology or products being developed by the strategic relationship, including if our partner is acquired by another company, files for bankruptcy or experiences financial or other losses; ‰ we may experience difficulties or delays in collecting amounts due to us from our co-venturers; ‰ the terms of our arrangements may turn out to be unfavorable; and ‰ changes in tax, legal or regulatory requirements may necessitate changes in the agreements with our co-venturers. If our strategic relationships are unsuccessful, our business, results of operations or financial condition may be adversely affected. The loss of our key executive management, staff and skilled employees, the inability to hire and integrate new employees or decisions to realign our business could negatively impact our business prospects. Our success depends upon the continued contributions of our key management, staff and skilled employees, many of whom would be extremely difficult to replace. Global competition for skilled employees in the data storage industry is intense and, as we attempt to move to a position of technology leadership in the storage industry, our business success becomes increasingly dependent on our ability to retain our key staff and skilled employees, to attract, integrate and retain new skilled employees and to make decisions to realign our business to take advantage of efficiencies or reduce redundancies. Volatility or lack of positive performance in our stock price and the overall mar- kets may adversely affect our ability to retain key staff or skilled employees who have received equity compensation. Additionally, because a substantial portion of our key employees’ compensation is placed “at risk” and linked to the performance of our business, when our operating results are negatively impacted, we are at a competitive disadvantage for retaining and hiring key management, staff and skilled employees versus other companies that pay a relatively higher fixed salary. If we lose our existing key management, staff or skilled employees, or are unable to hire and integrate new key management, staff or skilled employees, or if we fail to implement succession plans for our key management or staff, our operating results would likely be harmed. Furthermore, if we do not realize the anticipated benefits of our intended realignment after we make decisions regarding our personnel and implement our realignment plans, our operating results could be adversely affected. The nature of our industry and its reliance on intellectual property and other proprietary information subjects us and our suppliers and customers to the risk of significant litigation. The data storage industry has been characterized by significant litigation. This includes litigation relating to patent and other intellectual property rights, product liability claims and other types of litigation. Intellectual prop- erty risks increase when we enter into new markets where we have little or no intellectual property protection as a defense against litigation. Litigation can be expensive, lengthy and disruptive to normal business operations. More- over, the results of litigation are inherently uncertain and may result in adverse rulings or decisions. We may enter into settlements or be subject to judgments that may, individually or in the aggregate, have a material adverse effect on our business, financial condition or operating results. As disclosed in Part II, Item 8, Note 5 of the Notes to Con- densed Consolidated Financial Statements included in this Annual Report on Form 10-K, in relation to our litigation matter with Seagate, on October 8, 2014, the Minnesota Supreme Court affirmed the decision of the Minnesota Court of Appeals, and as a result on October 14, 2014, we paid Seagate $773.4 million to satisfy the full amount of the final arbitration award plus interest accrued through October 13, 2014. We evaluate notices of alleged patent infringement and notices of patents from patent holders that we receive from time to time. If claims or actions are asserted against us, we may be required to obtain a license or cross-license, modify our existing technology or design a new non-infringing technology. Such licenses or design modifications can be extremely costly. In addition, we may decide to settle a claim or action against us, which settlement could be costly. We may also be liable for any past infringement. If there is an adverse ruling against us in an infringement lawsuit, an injunction could be issued barring production or sale of any infringing product. It could also result in a damage award equal to a reasonable royalty or lost profits or, if there is a finding of willful infringement, treble dam- ages. Any of these results would increase our costs and harm our operating results. In addition, our suppliers and cus- tomers are subject to similar risks of litigation, and a material, adverse ruling against a supplier or customer could negatively impact our business. 28 Our reliance on intellectual property and other proprietary information subjects us to the risk that these key ingredients of our business could be copied by competitors. Our success depends, in significant part, on the proprietary nature of our technology, including non-patentable intellectual property such as our process technology. If a competitor is able to reproduce or otherwise capitalize on our technology despite the safeguards we have in place, it may be difficult, expensive or impossible for us to obtain neces- sary legal protection. Also, the laws of some foreign countries may not protect our intellectual property to the same extent as do U.S. laws. In addition to patent protection of intellectual property rights, we consider elements of our product designs and processes to be proprietary and confidential. We rely upon employee, consultant and vendor non- disclosure agreements and contractual provisions and a system of internal safeguards to protect our proprietary information. However, any of our registered or unregistered intellectual property rights may be challenged or exploited by others in the industry, which could harm our operating results. The costs of compliance with state, federal and international legal and regulatory requirements, such as environmental, labor, trade, health, safety, anti-corruption and tax regulations, customers’ standards of corporate citizenship, and industry and coalition standards, such as those established by the Electronics Industry Citizenship Coalition, could cause an increase in our operating costs. We are subject to, and may become subject to additional, state, federal and international laws and regulations governing our environmental, labor, trade, health, safety, anti-corruption and tax practices. These laws and regu- lations, particularly those applicable to our international operations, are or may be complex, extensive and subject to change. We will need to ensure that we and our suppliers and partners timely comply with such laws and regulations, which may result in an increase in our operating costs. Legislation has been, and may in the future be, enacted in loca- tions where we manufacture or sell our products. In addition, climate change and financial reform legislation is a sig- nificant topic of discussion and has generated and may continue to generate federal, international or other regulatory responses in the near future. If we or our suppliers or partners fail to timely comply with applicable legislation, our customers may refuse to purchase our products or we may face increased operating costs as a result of taxes, fines or penalties, or legal liability and reputational damage, which would have a materially adverse effect on our business, financial condition and operating results. In connection with our compliance with environmental laws and regulations, as well as our compliance with industry and coalition environmental initiatives, such as those established by the Electronics Industry Citizenship Coali- tion, the standards of business conduct required by some of our customers, and our commitment to sound corporate cit- izenship in all aspects of our business, we could incur substantial compliance and operating costs and be subject to disruptions to our operations and logistics. In addition, if we were found to be in violation of these laws or noncompliant with these initiatives or standards of conduct, we could be subject to governmental fines, liability to our customers and damage to our reputation and corporate brand which could cause our financial condition or operating results to suffer. Conflict minerals regulations may cause us to incur additional expenses and could limit the supply and increase the cost of certain components and metals contained in our products. In August 2012, the SEC adopted new rules establishing diligence and disclosure requirements regarding the use and source of gold, tantalum, tin and tungsten, commonly referred to as 3TG or conflict minerals, that are necessary to the functionality or production of products manufactured or contracted to be manufactured by public companies. These rules require us to determine and report annually whether such 3TG originated from the Democratic Republic of the Congo or an adjoining country. These rules could affect our ability to source components that contain 3TG, or 3TG generally, at acceptable prices and could impact the availability of such components or 3TG, since there may be only a limited number of suppliers of “conflict free” 3TG. Our customers, including our OEM customers, may require that our products contain only conflict free 3TG, and our revenues and margins may be harmed if we are unable to meet this requirement at a reasonable price, or at all, or are unable to pass through any increased costs associated with meeting this requirement. Additionally, we may suffer reputational harm with our customers and other stakeholders if our products are not conflict free or if we are unable to sufficiently verify the origins of the 3TG contained in our products through the due diligence procedures that we implement. We could incur significant costs to the extent that we are required to make changes to products, processes, or sources of supply due to the foregoing requirements or pressures. To the extent that proposed conflict minerals legislation is adopted by the European Commission or Canada, these risks could increase. 29 Violation of applicable laws, including labor or environmental laws, and certain other practices by our suppliers or customers could harm our business. We expect our suppliers and customers to operate in compliance with applicable laws and regulations, including labor and environmental laws, and to otherwise meet our required standards of conduct. While our internal operating guidelines promote ethical business practices, we do not control our suppliers or customers or their labor or environ- mental practices. The violation of labor, environmental or other laws by any of our suppliers or customers, or divergence of a supplier’s or customer’s business practices from those generally accepted as ethical, could harm our business by: ‰ interrupting or otherwise disrupting the shipment of our product components; ‰ damaging our reputation; ‰ forcing us to find alternate component sources; ‰ reducing demand for our products (for example, through a consumer boycott); or ‰ exposing us to potential liability for our suppliers’ or customers’ wrongdoings. Any decisions to reduce or discontinue paying cash dividends to our shareholders or repurchase shares of our common stock pursuant to our previously announced stock repurchase program could cause the market price for our common stock to decline. We may reduce or discontinue repurchases of our common stock as we deem appropriate and as market con- ditions allow. We may modify, suspend or cancel our cash dividend policy in any manner and at any time. Any reduc- tion or discontinuance by us of the payment of quarterly cash dividends or repurchases of our common stock pursuant to our stock repurchase program could cause the market price of our common stock to decline. Moreover, in the event our payment of quarterly cash dividends or repurchases of shares of our common stock are reduced or discontinued, our failure or inability to resume paying cash dividends or repurchasing shares of our common stock at historical levels could cause the market price of our common stock to decline. Fluctuations in currency exchange rates as a result of our international operations may negatively affect our operating results. Because we manufacture and sell our products abroad, our revenue, margins, operating costs and cash flows are impacted by fluctuations in foreign currency exchange rates. If the U.S. dollar exhibits sustained weakness against most foreign currencies, the U.S. dollar equivalents of unhedged manufacturing costs could increase because a significant por- tion of our production costs are foreign-currency denominated. Conversely, there would not be an offsetting impact to revenues since revenues are substantially U.S. dollar denominated. Additionally, we negotiate and procure some of our component requirements in U.S. dollars from non-U.S. based vendors. If the U.S. dollar weakens against other foreign currencies, some of our component suppliers may increase the price they charge for their components in order to maintain an equivalent profit margin. If this occurs, it would have a negative impact on our operating results. Prices for our products are substantially U.S. dollar denominated, even when sold to customers that are located outside the United States. Therefore, as a substantial portion of our sales are from countries outside the United States, fluctuations in currency exchanges rates, most notably the strengthening of the U.S. dollar against other foreign cur- rencies, contribute to variations in sales of products in impacted jurisdictions and could adversely impact demand and revenue growth. In addition, currency variations can adversely affect margins on sales of our products in countries outside the United States. We attempt to manage the impact of foreign currency exchange rate changes by, among other things, entering into short-term, foreign exchange contracts. However, these contracts do not cover our full exposure and can be can- celed by the counterparty if currency controls are put in place. Increases in our customers’ credit risk could result in credit losses and term extensions under existing contracts with customers with credit losses could result in an increase in our operating costs. Some of our OEM customers have adopted a subcontractor model that requires us to contract directly with companies, such as ODMs, that provide manufacturing and fulfillment services to our OEM customers. Because these 30 subcontractors are generally not as well capitalized as our direct OEM customers, this subcontractor model exposes us to increased credit risks. Our agreements with our OEM customers may not permit us to increase our product prices to alleviate this increased credit risk. Additionally, as we attempt to expand our OEM and distribution channel sales into emerging economies such as Brazil, Russia, India and China, the customers with the most success in these regions may have relatively short operating histories, making it more difficult for us to accurately assess the associated credit risks. Our acquisition of HGST has also resulted in an increase to our customer credit risk given that we service many of the same customers. Any credit losses we may suffer as a result of these increased risks, or as a result of credit losses from any significant customer, especially in situations where there are term extensions under existing contracts with such customers, would increase our operating costs, which may negatively impact our operating results. Our operating results fluctuate, sometimes significantly, from period to period due to many factors, which may result in a significant decline in our stock price. Our quarterly operating results may be subject to significant fluctuations as a result of a number of other factors including: ‰ the timing of orders from and shipment of products to major customers; ‰ our product mix; ‰ changes in the ASPs of our products; ‰ manufacturing delays or interruptions; ‰ acceptance by customers of competing products in lieu of our products; ‰ variations in the cost of and lead times for components for our products; ‰ limited availability of components that we obtain from a single or a limited number of suppliers; ‰ seasonal and other fluctuations in demand for systems that use storage devices often due to technological advances; and ‰ availability and rates of transportation. We often ship a high percentage of our total quarterly sales in the third month of the quarter, which makes it difficult for us to forecast our financial results before the end of the quarter. As a result of the above or other factors, our forecast of operating results for the quarter may differ materially from our actual financial results. If our results of operations fail to meet the expectations of analysts or investors, it could cause an immediate and significant decline in our stock price. We have made and continue to make a number of estimates and assumptions relating to our consolidated financial reporting, and actual results may differ significantly from our estimates and assumptions. We have made and continue to make a number of estimates and assumptions relating to our consolidated finan- cial reporting. The highly technical nature of our products and the rapidly changing market conditions with which we deal means that actual results may differ significantly from our estimates and assumptions. These changes have impacted our financial results in the past and may continue to do so in the future. Key estimates and assumptions for us include: ‰ price protection adjustments and other sales promotions and allowances on products sold to retailers, resellers and distributors; ‰ inventory adjustments for write-down of inventories to lower of cost or market value (net realizable value); ‰ testing of goodwill and other long-lived assets for impairment; ‰ reserves for doubtful accounts; ‰ accruals for product returns; ‰ accruals for warranty costs related to product defects; 31 ‰ accruals for litigation and other contingencies; ‰ liabilities for unrecognized tax benefits; and ‰ expensing of stock-based compensation. The market price of our common stock is volatile. The market price of our common stock has been, and may continue to be, volatile. Factors that may significantly affect the market price of our common stock include the following: ‰ actual or anticipated fluctuations in our operating results, including those resulting from the seasonality of our business; ‰ announcements of technological innovations by us or our competitors, which may decrease the volume and profitability of sales of our existing products and increase the risk of inventory obsolescence; ‰ new products introduced by us or our competitors; ‰ strategic actions by us or competitors, such as acquisitions and restructurings; ‰ periods of severe pricing pressures due to oversupply or price erosion resulting from competitive pressures or industry consolidation; ‰ developments with respect to patents or proprietary rights; ‰ proposed or adopted regulatory changes or developments or anticipated or pending investigations, proceedings or litigation that involve or affect us or our competitors; ‰ conditions and trends in the hard drive, solid state storage, computer, data and content management, storage and communication industries; ‰ contraction in our operating results or growth rates that are lower than our previous high growth-rate periods; ‰ failure to meet analysts’ revenue or earnings estimates or changes in financial estimates or publication of research reports and recommendations by financial analysts relating specifically to us or the storage industry in general; and ‰ macroeconomic conditions that affect the market generally and, in particular, developments related to market conditions for our industry. In addition, the stock market is subject to fluctuations in the stock prices and trading volumes that affect the market prices of the stock of public companies, including us. These broad market fluctuations have adversely affected and may continue to adversely affect the market price of shares of our common stock. For example, expectations con- cerning general economic conditions may cause the stock market to experience extreme price and volume fluctuations from time to time that particularly affect the stock prices of many high technology companies. These fluctuations often appear to be unrelated to the operating performance of the companies. Securities class action lawsuits are often brought against companies after periods of volatility in the market price of their securities. A number of such suits have been filed against us in the past, and should any new lawsuits be filed, such matters could result in substantial costs and a diversion of resources and management’s attention. The resale of shares of common stock issued to Hitachi, Ltd. (“Hitachi”) in connection with our acquisition of HGST could adversely affect the market price of our common stock. On March 8, 2012, as partial consideration for our acquisition of HGST, we issued 25 million shares of our common stock to Hitachi. On each of November 6, 2013 and November 13, 2014, Hitachi completed a secondary offering of 12.5 million and 6.25 million, respectively, of these shares. Future sales of the remaining 6.25 million shares of our common stock held by Hitachi could adversely affect the market price of our common stock. 32 Our cash balances and investment portfolio are subject to various risks, any of which could adversely impact our financial position. Given the international footprint of our business, we have both domestic and international cash balances and investments. We maintain an investment portfolio of various holdings, security types, and maturities. These invest- ments are subject to general credit, liquidity, market, political, sovereign and interest rate risks, which may be exacerbated by unusual events that affect global financial markets. A material part of our investment portfolio consists of U.S. government securities and bank deposits. If global credit and equity markets experience prolonged periods of decline, or if there is a downgrade of the U.S. government credit rating due to an actual or threatened default on gov- ernment debt, our investment portfolio may be adversely impacted and we could determine that our investments may experience an other-than-temporary decline in fair value, requiring impairment charges that could adversely affect our financial results. A failure of any of these financial institutions in which deposits exceed FDIC limits could also have an adverse impact on our financial position. In addition, if we are unable to generate sufficient cash flows from operations to fund acquisitions, pay dividends, or repurchase shares of our common stock, we may choose or be required to increase our borrowings, if available, or to repatriate funds to the United States at a substantial tax cost. If our internal controls are found to be ineffective, our stock price may be adversely affected. Our most recent evaluation resulted in our conclusion that as of July 3, 2015, in compliance with Section 404 of the Sarbanes-Oxley Act of 2002, our internal control over financial reporting was effective. If our internal control over finan- cial reporting is found to be ineffective or if we identify a material weakness in our financial reporting in future periods, investors may lose confidence in the reliability of our financial statements, which may adversely affect our stock price. Restrictive covenants in our credit agreement could restrict current and future operations or limit our flexibility to take certain actions. Our credit agreement includes covenants relating to our financial performance and financial position. In addition, our credit agreement restricts our ability to take other actions with respect to our current and future operations, including our ability to incur certain additional indebtedness or consolidate, merge or sell assets. Our ability to meet these restrictive covenants may be affected by events that could be beyond our control, and a breach of these restrictive covenants could result in an event of default under the credit agreement, which, if not cured or waived, could result in the indebtedness becoming immediately due and payable and could result in material adverse consequences that negatively impact our business. From time to time we may become subject to income tax examinations or similar proceedings, and as a result we may incur additional costs and expenses or owe additional taxes, interest and penalties that may negatively impact our operating results. We are subject to income taxes in the United States and certain foreign jurisdictions, and our determination of our tax liability is subject to review by applicable domestic and foreign tax authorities. For example, as we have previously disclosed, we are under examination by the Internal Revenue Service for certain fiscal years and in connection with that examination, we received Notice of Proposed Adjustments seeking certain adjustments to income as disclosed in Part II, Item 8, Note 9 of the Notes to Consolidated Financial Statements included in this Annual Report on Form 10-K. Although we believe our tax positions are properly supported, the final timing and resolution of any tax examinations are subject to significant uncertainty and could result in our having to pay amounts to the applicable tax authority in order to resolve examination of our tax positions, which could result in an increase or decrease of our current estimate of unrecognized tax benefits and may negatively impact our financial position, results of operations or cash flows. We are subject to risks associated with loss or non-renewal of favorable tax treatment under agreements or treaties with foreign tax authorities. Portions of our operations are subject to a reduced tax rate or are free of tax under various tax holidays that expire in whole or in part from time to time. Many of these holidays may be extended when certain conditions are met, or terminated if certain conditions are not met. If the tax holidays are not extended, or if we fail to satisfy the conditions of the reduced tax rate, then our effective tax rate could increase in the future. In addition, any actions by us to repa- triate non-U.S. earnings for which we have not previously provided for U.S. taxes may impact our effective tax rate. 33 Location United States California Fremont Item 1B. Unresolved Staff Comments Not applicable. Item 2. Properties Our principal executive offices are located in Irvine, California. Our leased facilities are occupied under leases that expire at various times through 2025. Our principal manufacturing, research and development, marketing and administrative facilities at July 3, 2015 were as follows: Building(s) Owned or Leased Approximate Square Footage Description . . . . . . . . . . . . . . . . . . . . . . . . . . . Owned 392,000 Irvine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Leased 467,000 San Jose . . . . . . . . . . . . . . . . . . . . . . . . . . . . Owned and 2,871,000 Leased Santa Ana . . . . . . . . . . . . . . . . . . . . . . . . . . Leased 73,000 Colorado Manufacturing of head wafers and research and development Research and development, administrative, marketing and sales Manufacturing of head wafers and head, media and product development; research and development, administrative, marketing and sales Research & development Longmont . . . . . . . . . . . . . . . . . . . . . . . . . . Leased 65,000 Research and development Minnesota Rochester . . . . . . . . . . . . . . . . . . . . . . . . . . Leased 114,000 Product development Asia China Shenzhen . . . . . . . . . . . . . . . . . . . . . . . . . . . Owned and 1,417,000 Leased Manufacturing of hard drives and, HGAs, media; administrative Japan Odawara . . . . . . . . . . . . . . . . . . . . . . . . . . . Owned 513,000 Fujisawa . . . . . . . . . . . . . . . . . . . . . . . . . . . Owned 654,000 Manufacturing of head wafers and head development Product development Malaysia Johor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Owned Kuala Lumpur . . . . . . . . . . . . . . . . . . . . . . . Owned Kuching . . . . . . . . . . . . . . . . . . . . . . . . . . . Owned Penang . . . . . . . . . . . . . . . . . . . . . . . . . . . . Owned 271,000 1,074,000 479,000 1,150,000 Manufacturing of substrates Manufacturing of hard drives and research and development Manufacturing and development of substrates Manufacturing of media, research and development and slider fabrication Philippines Laguna . . . . . . . . . . . . . . . . . . . . . . . . . . . . Owned 615,000 Singapore Owned and Leased 802,000 Thailand . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bang Pa-In . . . . . . . . . . . . . . . . . . . . . . . . . Owned 1,665,000 Navanakorn . . . . . . . . . . . . . . . . . . . . . . . . . Owned Prachinburi . . . . . . . . . . . . . . . . . . . . . . . . . Owned 290,000 729,000 Manufacturing of HGAs and slider fabrication Manufacturing of media and research and development; administrative Slider fabrication, manufacturing of hard drives and HGAs, and research and development Manufacturing of HGAs Manufacturing of hard drives 34 We also lease office space in various other locations throughout the world primarily for research and development and sales and technical support. We believe our present facilities are adequate for our current needs, although we from time to time upgrade our facilities to meet anticipated future technological and market requirements. New manufacturing facilities, in general, can be developed and become operational within approximately nine to eighteen months should we require such addi- tional facilities. Item 3. Legal Proceedings For a description of our legal proceedings, see Part II, Item 8, Note 5 of our Notes to Consolidated Financial Statements included in this Annual Report on Form 10-K, which is incorporated by reference in response to this item. Item 4. Mine Safety Disclosures Not applicable. 35 PART II Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters, and Issuer Purchases of Equity Securities Market Information for Common Stock Our common stock is listed on the NASDAQ Global Select Market (“NASDAQ”) under the symbol “WDC.” The approximate number of holders of record of our common stock as of August 13, 2015 was 1,144. The high and low sales prices of our common stock as reported by NASDAQ for each quarter of 2015 and 2014 were as follows: 2015 First Second Third Fourth High . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Low . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $103.51 $ 91.99 $114.69 $ 82.85 $113.88 $ 89.82 $102.07 $ 78.27 2014 High . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Low . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 70.61 $ 59.36 $ 84.70 $ 62.00 $ 91.10 $ 80.84 $ 95.00 $ 80.78 Repurchases of Equity Securities The following table provides information about repurchases by us of our common stock during the quarter ended July 3, 2015: (in millions, except average price paid per share) April 4, 2015 — May 1, 2015 . . . . . . . . . . May 2, 2015 — May 29, 2015 . . . . . . . . . . May 30, 2015 — July 3, 2015 . . . . . . . . . . Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Total Number of Shares Purchased Average Price Paid per Share — 2.0 — 2.0 $ — $97.66 $ — $ — Total Number of Shares Purchased as Part of Publicly Announced Program(1) Maximum Dollar Value of Shares that May Yet be Purchased Under the Program(1) — 2.0 — 2.0 $2,382 $2,184 $2,184 $2,184 (1) Our Board of Directors previously authorized $3.0 billion for the repurchase of our common stock. On Febru- ary 3, 2015, our Board of Directors authorized an additional $2.0 billion for the repurchase of our common stock and approved the extension of our stock repurchase program to February 3, 2020. Repurchases under our stock repurchase program may be made in the open market or in privately negotiated transactions and may be made under a Rule 10b5-1 plan. Dividends to Shareholders On September 13, 2012, we announced that our Board of Directors had authorized the adoption of a quarterly cash dividend policy. Under the cash dividend policy, holders of our common stock receive dividends when and as declared by our Board of Directors. In 2015, we declared aggregate cash dividends of $1.80 per share of our common stock, totaling $418 million. We may modify, suspend or cancel our cash dividend policy in any manner and at any time. 36 The following table provides information about the quarterly dividends our Board of Directors declared in the last two fiscal years. Record Date Payment Date Sept. 30, 2013 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Oct. 15, 2013 Dec. 27, 2013 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Jan. 15, 2014 Mar. 28, 2014 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Apr. 15, 2014 June 27, 2014 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . July 15, 2014 Oct. 3, 2014 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Oct. 15, 2014 Jan. 2, 2015 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Jan. 15, 2015 Apr. 3, 2015 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Apr. 16, 2015 July 15, 2015 July 3, 2015 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dividend Per Share $0.25 $0.30 $0.30 $0.40 $0.40 $0.40 $0.50 $0.50 Stock Performance Graph The following graph compares the cumulative total stockholder return of our common stock with the cumulative total return of the S&P 500 Index and the Dow Jones US Technology Hardware & Equipment Index for the five years ended July 3, 2015. The graph assumes that $100 was invested in our common stock at the close of market on July 2, 2010 and that all dividends were reinvested. Stockholder returns over the indicated period should not be considered indicative of future stockholder returns. TOTAL RETURN TO STOCKHOLDERS (Assumes $100 investment on 7/2/10) WESTERN DIGITAL CORPORATION S&P 500 DOW JONES US TECHNOLOGY HARDWARE & EQUIPMENT D O L L A R S 350 300 250 200 150 100 50 0 7/2/10 7/1/11 6/29/12 6/28/13 6/27/14 7/3/15 Total Return Analysis Western Digital Corporation S&P 500 Index Dow Jones US Technology Hardware & Equipment Index 7/2/10 $100.00 100.00 7/1/11 $121.32 130.69 6/29/12 $100.93 137.81 6/28/13 $210.23 166.20 6/27/14 $319.38 207.10 7/3/15 $283.53 222.47 100.00 122.20 138.27 133.99 190.71 216.05 The stock performance graph shall not be deemed soliciting material or to be filed with the SEC or subject to Regulation 14A or 14C under the Securities Exchange Act of 1934 or to the liabilities of Section 18 of the Securities Exchange Act of 1934, nor shall it be incorporated by reference into any past or future filing under the Securities Act of 1933 or the Securities Exchange Act of 1934, except to the extent we specifically request that it be treated as soliciting material or specifically incorporate it by reference into a filing under the Securities Act of 1933 or the Securities Exchange Act of 1934. 37 Item 6. Selected Financial Data Financial Highlights This selected consolidated financial data should be read together with the Consolidated Financial Statements and related Notes contained in this Annual Report on Form 10-K and in the subsequent reports filed with the SEC, as well as the section of this Annual Report on Form 10-K and the other reports entitled “Management’s Discussion and Analysis of Financial Condition and Results of Operations.” Revenue, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Gross profit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Income per common share: Basic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Diluted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cash dividends declared per common share . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Working capital Total assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Long-term debt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Shareholders’ equity . . . . . . . . . . . . . . . . . . . . . . . . . . . . Number of employees . . . . . . . . . . . . . . . . . . . . . . . . . . July 3, 2015 $14,572 $ 4,221 $ 1,465 June 29, 2012 June 27, 2014 June 28, 2013 (in millions, except per share and employee data) $15,351 $ 4,363 980 $ $ 12,478 3,638 $ 1,612 $ $15,130 $ 4,360 $ 1,617 July 1, 2011 $ 9,526 $ 1,791 726 $ 6.31 $ 6.18 $ $ 1.80 $ 5,275 $15,181 $ 2,156 $ 9,219 76,449 6.88 $ 6.68 $ $ 1.25 $ 4,875 $15,499 $ 2,313 $ 8,842 84,072 4.07 $ 3.98 $ $ 1.00 $ 3,625 $14,036 $ 1,725 $ 7,893 85,777 6.69 6.58 $ $ $ $ 3,109 $ 14,206 1,955 $ 7,669 $ 103,111 3.14 $ 3.09 $ — $ — $ 3,317 $ 8,118 150 $ $ 5,488 65,431 “Number of employees” excludes temporary employees and contractors. Results for Amplidata, Virident, sTec, VeloBit and HGST, which were acquired on March 9, 2015, October 17, 2013, September 12, 2013, July 9, 2013 and March 8, 2012, respectively, are included in our operating results only after the respective dates of acquisition. Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations Forward-Looking Statements The following discussion and analysis contains forward-looking statements within the meaning of the federal securities laws. You are urged to carefully review our description and examples of forward-looking statements included earlier in this Annual Report on Form 10-K immediately prior to Part I, under the heading “Forward-Looking Statements.” Forward-looking statements are subject to risks and uncertainties that could cause actual results to differ materially from those expressed in the forward-looking statements. You are urged to carefully review the disclosures we make concerning risks and other factors that may affect our business and operating results, including those made in Part I, Item 1A of this Annual Report on Form 10-K, and any of those made in our other reports filed with the SEC. You are cautioned not to place undue reliance on the forward-looking statements included herein, which speak only as of the date of this document. We do not intend, and undertake no obligation, to publish revised forward-looking statements to reflect events or circumstances after the date of this document or to reflect the occurrence of unanticipated events. Our Company We are a leading developer, manufacturer and provider of data storage solutions that enable consumers, busi- nesses, governments and other organizations to create, manage, experience and preserve digital content. Our product portfolio includes HDDs, SSDs, direct attached storage solutions, personal cloud network attached storage solutions, and public and private cloud data center storage solutions. HDDs are our principal products and are today’s primary storage medium for the vast majority of digital content, with the use of solid-state storage products growing rap- idly. Our products are marketed under the HGST, WD and G-Technology brand names. 38 Acquisitions Acquisition of Amplidata On March 9, 2015, we acquired Amplidata, a developer of object storage software for public and private cloud data centers. The purchase price of the acquisition was approximately $267 million, consisting of $245 million funded with available cash at the time of the acquisition, $19 million related to the fair value of a previously-held cost method investment and $3 million related to the fair value of stock options assumed. The acquisition is expected to further HGST’s strategy to expand into higher value data storage platforms and systems that address the growth in storage requirements in cloud data centers. The acquisition of Amplidata did not have a material impact on our con- solidated financial statements for fiscal 2015. Acquisition of Virident On October 17, 2013, we acquired Virident, a provider of server-side flash storage solutions for virtualization, database, cloud computing and webscale applications. Virident was fully integrated into our HGST subsidiary and became our wholly owned indirect subsidiary. The purchase price of the acquisition was approximately $613 million, consisting of $598 million which was funded with available cash and $15 million related to the fair value of stock options assumed. The acquisition furthered HGST’s strategy to address the rapidly changing needs of enterprise cus- tomers by delivering intelligent storage solutions that maximize application performance by leveraging the tightly coupled server, storage and network resources of today’s converged datacenter infrastructures. Acquisition of sTec On September 12, 2013, we acquired sTec, a provider of enterprise SSDs. The purchase price of the acquisition was approximately $336 million, consisting of $325 million which was funded with available cash and $11 million related to the fair value of stock options and restricted stock units (“RSUs”) assumed. The acquisition augmented HGST’s existing solid-state storage capabilities. For additional information on our acquisitions, see Part II, Item 8, Note 15 of the Notes to Consolidated Finan- cial Statements included in this Annual Report on Form 10-K. Results of Operations Fiscal 2015 Overview In accordance with accounting principles generally accepted in the United States (“U.S. GAAP”), operating results for Amplidata, Virident, and sTec, which were acquired on March 9, 2015, October 17, 2013, and Sep- tember 12, 2013, respectively, are included in our operating results only after the respective dates of acquisition. The following is a summary of our financial performance for fiscal 2015: ‰ In 2015, our net revenue decreased by 4% to $14.6 billion on HDD shipments of 229 million units as com- pared to $15 billion on shipments of 249 million units in 2014. ‰ Net revenue derived from enterprise SSDs was $811 million in 2015 as compared to $508 million in 2014. ‰ HDD ASPs increased to $60 in 2015 from $58 in 2014. ‰ Gross profit as a percentage of net revenue increased to 29.0% in 2015 from 28.8% in 2014. ‰ Operating income decreased from $1.8 billion in 2014 to $1.6 billion in 2015. ‰ Operating income in 2015 included $176 million of employee termination, asset impairment and other charges and $15 million of charges related to an arbitration award as compared to $95 million and $52 mil- lion, respectively, in 2014. 39 ‰ Net income in 2015 was $1.5 billion, or $6.18 per diluted share, compared to $1.6 billion, or $6.68 per diluted share, in 2014. Summary Comparison of 2015, 2014 and 2013 The following table sets forth, for the periods presented, selected summary information from our consolidated statements of income by dollars and percentage of net revenue (in millions, except percentages): Net revenue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Gross profit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Research and development . . . . . . . . . . . . . . . . . . . . Selling, general and administrative . . . . . . . . . . . . . . Charges related to arbitration award . . . . . . . . . . . . . Employee termination, asset impairment and other charges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating income . . . . . . . . . . . . . . . . . . . . . . . . . . . Other expense, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Income before income taxes Income tax provision . . . . . . . . . . . . . . . . . . . . . . . . . Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . July 3, 2015 Years Ended June 27, 2014 June 28, 2013 $14,572 4,221 1,646 773 15 100.0% $15,130 4,360 29.0 1,661 11.3 761 5.3 52 0.1 100.0% $15,351 4,363 28.8 1,572 11.0 706 5.0 681 0.3 100.0% 28.4 10.2 4.6 4.4 176 1,611 (34) 1,577 112 1,465 1.2 11.1 (0.2) 10.8 0.8 10.1 95 1,791 (39) 1,752 135 1,617 0.6 11.8 (0.3) 11.6 0.9 10.7 138 1,266 (44) 1,222 242 980 0.9 8.2 (0.3) 8.0 1.6 6.4 The following table sets forth, for the periods presented, summary information regarding unit shipments, ASPs and net revenues by geography and channel (in millions, except percentages and ASPs): Net revenue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ASPs (per unit)* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Revenues by Geography (%) Americas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Europe, Middle East and Africa . . . . . . . . . . . . . . . . . . . Asia . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Revenues by Channel (%) Original Equipment Manufacturers (“OEM”) . . . . . . . . . Distributors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Retailers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Unit Shipments* PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Non-PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Total units shipped . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . July 3, 2015 Years Ended June 27, 2014 $14,572 60 $ $15,130 58 $ June 28, 2013 $15,351 61 $ 28% 22 50 64% 23 13 136 93 229 25% 21 54 63% 24 13 157 92 249 26% 20 54 63% 24 13 162 80 242 * Based on sales of HDD units only. Fiscal Year 2015 Compared to Fiscal Year 2014 Net Revenue. Net revenue was $14.6 billion for 2015, a decrease of 4% from 2014. The decrease was primarily due to a 8% decline in total HDD shipments, partially offset by an increase in ASPs. Total HDD shipments in 2015 decreased to 229 million units as compared to 249 million units for the prior year primarily due to a decrease in client PC demand. ASPs were $60 for 2015, an increase of $2 from 2014, primarily due to a change in product mix. 40 Changes in net revenue by geography and channel generally reflect normal fluctuations in market demand and competitive dynamics. Consistent with standard industry practice, we have sales incentive and marketing programs that provide custom- ers with price protection and other incentives or reimbursements that are recorded as a reduction to gross revenue. For 2015 and 2014, these programs represented 10% and 8% of gross revenues, respectively. These amounts generally vary according to several factors including industry conditions, seasonal demand, competitor actions, channel mix and overall availability of products. Gross Profit. Gross profit for 2015 was $4.2 billion, a decrease of $139 million from the prior year. The decrease was primarily due to lower volume. Gross profit as a percentage of net revenue remained relatively flat at 29.0% in 2015 as compared to 28.8% in 2014. Operating Expenses. Research and development (“R&D”) expense was $1.6 billion in 2015, a decrease of $15 million, or 1%, over the prior year. This slight decrease was primarily due to lower incentive compensation, partially offset by an additional week in fiscal 2015 and additional expenses related to our acquisitions. Selling, general and administrative (“SG&A”) expense was $773 million in 2015, an increase of $12 million, or 2%, as compared to 2014. Adjusting for a $37 million flood-related insurance recovery in 2015 compared to a $65 million flood-related insurance recovery in 2014, SG&A expense decreased $16 million, or 2% compared to 2014. This slight decrease was primarily due to lower incentive compensation, partially offset by an additional week in fiscal 2015 and additional expenses related to our acquisitions. During 2015 and 2014, we recorded $15 million and $52 million, respectively, for charges related to the Seagate matter. For further details see, Part II, Item 8, Note 5 of the Notes to Consolidated Financial Statements in this Annual Report on Form 10-K. During 2015, we recorded $176 million of employee termination, asset impairment and other charges. These charges consisted of $82 million of employee termination costs, $82 million of asset impairment charges and $12 million of contract termination and other charges. During 2014, we recorded $95 million of employee termination, asset impairment and other charges. These charges consisted of $27 million of employee termination costs, $62 mil- lion of asset impairment charges and $6 million of contract termination and other charges. Other Expense, net. Other expense, net was $34 million in 2015 compared to $39 million in 2014. Interest and other income decreased to $15 million in 2015 from $17 million in 2014, primarily due a $3 million gain on the sale of our auction-rate securities in 2014. Interest and other expense decreased to $49 million in 2015, from $56 million in 2014, primarily due to a $4 million write-off of debt issuance costs in 2014. Income Tax Provision. Income tax expense was $112 million in 2015 as compared to $135 million in 2014. Tax expense as a percentage of income before taxes was 7.1% in 2015 compared to 7.7% in 2014. Our income tax provi- sion for 2015 reflects a tax benefit of $27 million as a result of the retroactive extension of the U.S. Federal research and development tax credit (the “R&D credit”) that was signed into law on December 19, 2014. The differences between the effective tax rate and the U.S. Federal statutory rate are primarily due to tax holidays in Malaysia, the Philippines, Singapore and Thailand that expire at various dates from 2016 through 2025 and the current year gen- eration of income tax credits. As of July 3, 2015, we had a recorded liability for unrecognized tax benefits of $350 million. We recognized a net increase of $50 million in our liability for unrecognized tax benefits during 2015. Interest and penalties recog- nized on such amounts were not material. The Internal Revenue Service (“IRS”) previously completed its field examination of our federal income tax returns for fiscal years 2006 and 2007, and we and the IRS reached agreement with respect to all matters except on the proposed adjustments to income before income taxes relating to intercompany payable balances. The proposed adjustments relating to intercompany payable balances for fiscal years 2006 and 2007 are addressed in conjunction with the IRS’s examination of our fiscal years 2008 and 2009, which commenced in January 2012. We received a 41 Notice of Proposed Adjustment (“NOPA”) from the IRS for fiscal year 2009 relating to intercompany payable balan- ces and two NOPAs from the IRS for fiscal years 2008 and 2009 relating to transfer pricing with our foreign sub- sidiaries. The NOPAs relating to intercompany payable balances and transfer pricing with our foreign subsidiaries propose to increase our U.S. taxable income, which would result in additional federal tax expense of approximately $72 million and $723 million, respectively, subject to interest. We disagree with the proposed adjustments, believe that the tax positions are properly supported and will vigorously contest the position taken by the IRS. In January 2012, the IRS commenced an examination of the 2007 fiscal period ended September 5, 2007 of Komag, Incorporated, which we acquired on September 5, 2007. The IRS examined calendar years 2010 and 2011 of HGST, which was acquired by us on March 8, 2012, and completed the examination with no material adjustments. We believe that adequate provision has been made for any adjustments that may result from tax examinations. However, the outcome of tax examinations cannot be predicted with certainty. If any issues addressed in our tax examinations are resolved in a manner not consistent with management’s expectations, we could be required to adjust our provision for income taxes in the period such resolution occurs. As of July 3, 2015, it is not possible to estimate the amount of change, if any, in the unrecognized tax benefits that is reasonably possible within the next twelve months. Any significant change in the amount of our liability for unrecognized tax benefits would most likely result from additional information or settlements relating to the examination of our tax returns. Fiscal Year 2014 Compared to Fiscal Year 2013 Net Revenue. Net revenue was $15.1 billion for 2014, a decrease of 1% from 2013. ASPs were $58 for 2014, a decrease of $3 from 2013. These decreases were primarily due to modest price declines and a change in product mix, partially offset by an increase in unit shipments. Total hard drive shipments in 2014 increased to 249 million units as compared to 242 million units for the prior year primarily due to strength in our CE solutions, including gaming consoles. Changes in net revenue by geography and channel generally reflect normal fluctuations in market demand and competitive dynamics. Consistent with standard industry practice, we have sales incentive and marketing programs that provide custom- ers with price protection and other incentives or reimbursements that are recorded as a reduction to gross revenue. For each of 2014 and 2013, these programs represented 8% of gross revenues. These amounts generally vary according to several factors including industry conditions, seasonal demand, competitor actions, channel mix and overall avail- ability of product. Gross Profit. Gross profit for 2014 was $4.4 billion, a decrease of $3 million from the prior year. Gross profit as a percentage of net revenue increased to 28.8% in 2014 as compared to 28.4% in 2013. The increase in gross profit as a percentage of net revenue was primarily driven by higher volumes in 2014 as compared to 2013 as well as a con- tinued focus on operational excellence. Operating Expenses. R&D expense was $1.7 billion in 2014, an increase of $89 million, or 6%, over the prior year. This increase was primarily due to the inclusion of Virident and sTec’s R&D expenses from the dates of acquisition and the continued investment in product development. As a percentage of net revenue, R&D expense increased to 11.0% in 2014 com- pared to 10.2% in 2013. SG&A expense was $761 million in 2014, an increase of $55 million, or 8%, as compared to 2013. This increase in SG&A expense was primarily due to the inclusion of Virident and sTec’s SG&A expenses from the dates of acquis- ition and the expansion of sales and marketing to support new products and growing markets, partially offset by a $65 million gain on flood-related insurance recovery. SG&A expense as a percentage of net revenue increased to 5.0% in 2014 compared to 4.6% in 2013. During 2014 and 2013, we recorded $52 million and $681 million, respectively, for charges related to the Sea- gate matter. For further detail see, Part II, Item 8, Note 5 of the Notes to Consolidated Financial Statements included in this Annual Report on Form 10-K. 42 During 2014, we recorded $95 million of employee termination, asset impairment and other charges. These charges consisted of $27 million of employee termination costs, $62 million of asset impairment charges and $6 mil- lion of other charges. During 2013, we recorded $138 million of employee termination, asset impairment and other charges. These charges consisted of $109 million of employee termination costs, $14 million of asset impairment charges and $15 million of other charges. Other Expense, net. Other expense, net was $39 million in 2014 compared to $44 million in 2013. Interest and other income increased from $11 million in 2013 to $17 million in 2014 primarily due to a $3 million gain on the sale of our auction-rate securities in 2014 and a higher average daily invested cash balance for the period. Interest and other expense increased from $55 million in 2013 to $56 million in 2014, primarily due to a $4 million write-off of debt issuance costs associated with lenders that extinguished or reduced their participation in our new credit agree- ment, offset by lower variable interest rates on our average debt balance in 2014. Income Tax Provision. Income tax expense was $135 million in 2014 as compared to $242 million in 2013. Tax expense as a percentage of income before taxes was 7.7% in 2014 compared to 19.8% in 2013. We recorded an $88 million charge to reduce our previously recognized California deferred tax assets in fiscal 2013 as a result of the enactment of California Proposition 39. California Proposition 39, which was approved by California voters on November 6, 2012, affects California state income tax apportionment for most multi-state taxpayers for tax years beginning on or after January 1, 2013. This proposition reduces our future income apportioned to California, making it less likely for us to realize certain California deferred tax assets. In addition, our income tax provision for 2013 also reflects a tax benefit of $37 million as a result of the retroactive extension of the R&D credit. The R&D credit, which had previously expired on December 31, 2011, was extended through December 31, 2013 as part of the American Taxpayer Relief Act of 2012. The differences between the effective tax rate and the U.S. Federal statutory rate are primarily due to tax holidays in Malaysia, the Philippines, Singapore and Thailand that expire at various dates from 2016 through 2025 and the current year generation of income tax credits. As of June 27, 2014, we had a recorded liability for unrecognized tax benefits of $300 million. We recognized a net increase of $60 million in our liability for unrecognized tax benefits during 2014. Interest and penalties recog- nized on such amounts were not material. Liquidity and Capital Resources We ended 2015 with total cash and cash equivalents of $5.0 billion, an increase of $220 million from June 27, 2014. The following table summarizes our statements of cash flows for the three years ended July 3, 2015 (in millions): July 3, 2015 Years Ended June 27, 2014 June 28, 2013 Net cash flow provided by (used in): Operating activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Investing activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Financing activities $ 2,242 (953) (1,069) $ 2,816 (1,936) (385) $ 3,119 (970) (1,048) Net increase in cash and cash equivalents . . . . . . . . . . . . . . . . . $ 220 $ 495 $ 1,101 Our investment policy is to manage our investment portfolio to preserve principal and liquidity while maximizing return through the full investment of available funds. We believe our current cash, cash equivalents and cash generated from operations as well as our available credit facilities will be sufficient to meet our working capital, debt, dividend, stock repurchase and capital expenditure needs for at least the next twelve months. Our ability to sustain our working capital position is subject to a number of risks that we discuss in Part I, Item 1A in this Annual Report on Form 10-K. A total of $4.3 billion and $3.5 billion of our cash and cash equivalents were held outside of the United States at July 3, 2015 and June 27, 2014, respectively. Substantially all of the amounts held outside of the United States are intended to be indefinitely reinvested in foreign operations. As described in Part II, Item 8, Note 5 of the Notes to Consolidated Financial Statements included in this Annual Report on Form 10-K, we paid $773 million to Seagate in 43 2015 from one of our foreign subsidiaries using cash and cash equivalents held outside of the United States. Our Board of Directors previously approved a capital allocation plan that includes repurchases of our common stock and the adoption of a quarterly cash dividend policy. Our current plans do not anticipate that we will need funds generated from foreign operations to fund our domestic operations or capital allocation plan. In the event funds from foreign operations are needed in the United States, any repatriation could result in the accrual and payment of additional U.S. income tax. Operating Activities Net cash provided by operating activities was $2.2 billion in 2015 as compared to $2.8 billion and $3.1 billion in 2014 and 2013, respectively. Cash flow from operating activities consists of net income, adjusted for non-cash charges, plus or minus working capital changes. This represents our principal source of cash. Net cash used in working capital changes was $593 million for 2015 as compared to net cash used in working capital changes of $234 million in 2014 and net cash provided by working capital changes of $715 million for 2013. Our working capital requirements primarily depend on the effective management of our cash conversion cycle, which measures how quickly we can convert our products into cash through sales. The cash conversion cycles for the three years ended 2015 were as follows: Days sales outstanding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Days in inventory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Days payables outstanding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cash conversion cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Years Ended June 27, 2014 June 28, 2013 48 41 (67) 22 43 39 (66) 16 July 3, 2015 39 49 (67) 21 In 2015, our days sales outstanding (“DSOs”) decreased by 9 days, days in inventory (“DIOs”) increased by 8 days, and days payables outstanding (“DPOs”) remained flat compared to 2014. Changes in DSOs are generally related to the linearity of shipments. For 2015, the decrease in DSOs was due to both the linearity of shipments and the sale of trade receivables in connection with our factoring agreement. Changes in DIOs are generally related to the timing of inventory builds. Changes in DPOs are generally related to production volume and the timing of purchases during the period. From time to time, we modify the timing of payments to our vendors. We make modifications primarily to manage our vendor relationships and to manage our cash flows, including our cash balances. Generally, we make the payment term modifications through negotiations with our vendors or by granting to, or receiving from, our vendors’ payment term accommodations. Investing Activities Net cash used in investing activities in 2015 was $1.0 billion as compared to $1.9 billion for 2014 and $1.0 bil- lion for 2013. During 2015, cash used in investing activities consisted primarily of $257 million related to acquis- itions, net of cash acquired, $612 million of capital expenditures, $857 million related to the purchase of investments, offset by $5 million of other investing activities, net, and $768 million of proceeds from the sales and maturities of investments. In 2014, cash used in investing activities consisted primarily of $823 million related to acquisitions, net of cash acquired, $628 million of capital expenditures, $561 million related to the purchase of investments, offset by $4 million of other investing activities, net, and $72 million of proceeds from the sales and maturities of investments. Our cash equivalents are invested in highly liquid money market funds that are invested in U.S. Treasury secu- rities and U.S. Government Agency securities. In addition, we invest directly in U.S. Treasury securities, U.S. Government Agency securities, commercial paper and certificates of deposit. Financing Activities Net cash used in financing activities was $1.1 billion in 2015 as compared to $385 million and $1.0 billion for 2014 and 2013, respectively. Net cash used in financing activities in 2015 consisted of $125 million to repay debt, $970 million to repurchase shares of our common stock and $396 million to pay dividends on our common stock, 44 offset by $255 million of proceeds related to our revolving credit facility and net $167 million provided by employee stock plans. Net cash used in financing activities in 2014 consisted of $2.5 billion of proceeds related to our term loan facility, net of issuance costs, $500 million of debt proceeds related to our revolving credit facility and a net $215 million provided by employee stock plans, offset by $2.5 billion used to repay our term loan facility, as well as $816 million used to repurchase shares of our common stock and $259 million used to pay dividends on our common stock. Off-Balance Sheet Arrangements Other than facility lease commitments incurred in the normal course of business and certain indemnification provisions (see “Contractual Obligations and Commitments” below), we do not have any off-balance sheet financing arrangements or liabilities, guarantee contracts, retained or contingent interests in transferred assets, or any obligation arising out of a material variable interest in an unconsolidated entity. We do not have any majority-owned sub- sidiaries that are not included in the consolidated financial statements. Additionally, we do not have an interest in, or relationships with, any special-purpose entities. Contractual Obligations and Commitments The following is a summary of our known contractual cash obligations and commercial commitments as of July 3, 2015 (in millions): Revolving credit facility* . . . . . . . . . . . . . . . . . . Long-term debt, including current portion* . . . Operating leases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Purchase obligations Total $ 255 $2,312 185 2,844 Less than 1 Year $ 255 $ 156 40 2,809 Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $5,596 $3,260 1-3 Years 3-5 Years More than 5 Years $ — $469 58 28 $555 $ — $1,687 42 6 $1,735 $— $— 45 1 $46 * Included within our consolidated balance sheet Debt As of July 3, 2015, we had $255 million outstanding on our revolving credit facility and $2.3 billion out- standing on our term loan facility. The revolving credit facility is classified within current liabilities on our con- solidated balance sheet as of July 3, 2015 due to our intent to repay the borrowings in 2016. We are required to make quarterly principal payments on the term loan facility totaling $156 million in fiscal 2016, $219 million in fiscal 2017, $250 million in fiscal 2018 and the remaining balance of $1.7 billion in fiscal 2019. As of July 3, 2015, we were in compliance with all covenants under our credit agreement. For additional information, see Part II, Item 8, Note 3 in the Notes to Consolidated Financial Statements included in this Annual Report on Form 10-K. Purchase Orders In the normal course of business, we enter into purchase orders with suppliers for the purchase of components used to manufacture our products. These purchase orders generally cover forecasted component supplies needed for production during the next quarter, are recorded as a liability upon receipt of the components, and generally may be changed or canceled at any time prior to shipment of the components. We also enter into purchase orders with suppli- ers for capital equipment that are recorded as a liability upon receipt of the equipment. Our ability to change or cancel a capital equipment purchase order without penalty depends on the nature of the equipment being ordered. In some cases, we may be obligated to pay for certain costs related to changes to, or cancellation of, a purchase order, such as costs incurred for raw materials or work in process of components or capital equipment. We have entered into long-term purchase agreements with various component suppliers, containing minimum quantity requirements. However, the dollar amount of the purchases may depend on the specific products ordered, 45 achievement of pre-defined quantity or quality specifications or future price negotiations. The estimated related minimum purchase requirements are included in “Purchase obligations” in the table above. We have also entered into long-term purchase agreements with various component suppliers that carry fixed volumes and pricing which obligate us to make certain future purchases, contingent on certain conditions of performance, quality and technology of the vendor’s components. These arrangements are included under “Purchase obligations” in the table above. We enter into, from time to time, other long-term purchase agreements for components with certain vendors. Generally, future purchases under these agreements are not fixed and determinable as they depend on our overall unit volume requirements and are contingent upon the prices, technology and quality of the supplier’s products remaining competitive. These arrangements are not included under “Purchase obligations” in the table above. Please see Part I, Item 1A of this Annual Report on Form 10-K for a discussion of risks related to commitments. Foreign Exchange Contracts We purchase short-term, foreign exchange contracts to hedge the impact of foreign currency fluctuations on cer- tain underlying assets, liabilities and commitments for operating expenses and product costs denominated in foreign currencies. See Part II, Item 7A, under the heading “Disclosure About Foreign Currency Risk,” for a description of our current foreign exchange contract commitments and Part II, Item 8, Notes 1 and 12 of the Notes to Consolidated Financial Statements, included in this Annual Report on Form 10-K. Indemnifications In the ordinary course of business, we may provide indemnifications of varying scope and terms to customers, vendors, lessors, business partners and other parties with respect to certain matters, including, but not limited to, losses arising out of our breach of agreements, products or services to be provided by us, or from intellectual property infringement claims made by third parties. In addition, we have entered into indemnification agreements with our directors and certain of our officers that will require us, among other things, to indemnify them against certain liabilities that may arise by reason of their status or service as directors or officers. We maintain director and officer insurance, which may cover certain liabilities arising from our obligation to indemnify our directors and officers in certain circumstances. It is not possible to determine the maximum potential amount under these indemnification agreements due to the limited history of prior indemnification claims and the unique facts and circumstances involved in each particular agreement. Such indemnification agreements may not be subject to maximum loss clauses. Historically, we have not incurred material costs as a result of obligations under these agreements. Unrecognized Tax Benefits As of July 3, 2015, the amount of unrecognized tax benefits, including related accrued interest and penalties, was $350 million, of which $291 million could result in potential cash payments. We are not able to provide a reasonable estimate of the timing of future tax payments related to these obligations. See Part II, Item 8, Note 9 in the Notes to Consolidated Financial Statements included in this Annual Report on Form 10-K for information regarding our total tax liability for unrecognized tax benefits. Stock Repurchase Program Our Board of Directors previously authorized $3.0 billion for the repurchase of our common stock. On February 3, 2015, our Board of Directors authorized an additional $2.0 billion for the repurchase of our common stock and approved the extension of our stock repurchase program to February 3, 2020. We repurchased 9.6 million shares of our common stock for a total cost of $970 million in 2015. The remaining amount available to be purchased under our stock repurchase program as of July 3, 2015 was $2.2 billion. Subsequent to July 3, 2015 and through August 13, 2015, we repurchased an additional 0.7 million shares of our common stock for a total cost of $60 million. We may continue to repurchase our common stock as we deem appropriate. Repurchases under our stock repurchase program may be made in the open market or in privately negotiated transactions and may be made under a Rule 10b5-1 plan. We expect stock repurchases to be funded principally by operating cash flows and borrowings under our credit agreement. 46 Cash Dividend Policy On September 13, 2012, we announced that our Board of Directors had authorized the adoption of a quarterly cash dividend policy. Under the cash dividend policy, holders of our common stock receive dividends when and as declared by our Board of Directors. In 2015, we declared aggregate cash dividends of $1.80 per share of our common stock, totaling $418 million, of which $302 million was paid during 2015. We also paid $94 million of dividends in 2015 related to dividends accrued in 2014. On August 4, 2015, we declared a cash dividend of $0.50 per share of our common stock to shareholders of record as of October 2, 2015, which will be paid on October 15, 2015. We may modify, suspend or cancel our cash dividend policy in any manner and at any time. See Part II, Item 5 included in this Annual Report on Form 10-K for further information. Critical Accounting Policies and Estimates We have prepared the accompanying consolidated financial statements in accordance with U.S. GAAP. The preparation of the financial statements requires the use of judgments and estimates that affect the reported amounts of revenues, expenses, assets, liabilities and shareholders’ equity. We have adopted accounting policies and practices that are generally accepted in the industry in which we operate. We believe the following are our most critical accounting policies that affect significant areas and involve judgment and estimates made by us. If these estimates differ sig- nificantly from actual results, the impact to the consolidated financial statements may be material. Revenue and Accounts Receivable In accordance with standard industry practice, we provide distributors and retailers (collectively referred to as “resellers”) with limited price protection for inventories held by resellers at the time of published list price reductions, and we provide resellers and OEMs with other sales incentive programs. At the time we recognize revenue to resellers and OEMs, we record a reduction of revenue for estimated price protection until the resellers sell such inventory to their customers and we also record a reduction of revenue for the other programs in effect. We base these adjustments on several factors including anticipated price decreases during the reseller holding period, resellers’ sell-through and inventory levels, estimated amounts to be reimbursed to qualifying customers, historical pricing information and customer claim processing. If customer demand for hard drives or market conditions differs from our expectations, our operating results could be materially affected. We also have programs under which we reimburse qualified distrib- utors and retailers for certain marketing expenditures, which are recorded as a reduction of revenue. These amounts generally vary according to several factors including industry conditions, seasonal demand, competitor actions, chan- nel mix and overall availability of product. Generally, total sales incentive and marketing programs range from 7% to 11% of gross revenues per quarter. For 2015, sales incentive and marketing programs were 10% of gross revenues. Changes in future customer demand and market conditions may require us to adjust our incentive programs as a per- centage of gross revenue from the current range. Adjustments to revenues due to changes in accruals for these pro- grams related to revenues reported in prior periods have averaged 0.7% of quarterly gross revenue since the first quarter of fiscal 2013. Customer sales incentive and marketing programs are recorded as a reduction of revenue. We record an allowance for doubtful accounts by analyzing specific customer accounts and assessing the risk of loss based on insolvency, disputes or other collection issues. In addition, we routinely analyze the different receivable aging categories and establish reserves based on a combination of past due receivables and expected future losses based primarily on our historical levels of bad debt losses. If the financial condition of a significant customer deteriorates resulting in its inability to pay its accounts when due, or if our overall loss history changes significantly, an adjust- ment in our allowance for doubtful accounts would be required, which could materially affect operating results. We establish provisions against revenue and cost of revenue for sales returns in the same period that the related revenue is recognized. We base these provisions on existing product return notifications. If actual sales returns exceed expectations, an increase in the sales return accrual would be required, which could materially affect operating results. Warranty We record an accrual for estimated warranty costs when revenue is recognized. We generally warrant our prod- ucts for a period of one to five years. Our warranty provision considers estimated product failure rates and trends, 47 estimated replacement costs, estimated repair costs which include scrap costs, and estimated costs for customer com- pensatory claims related to product quality issues, if any. We use a statistical warranty tracking model to help prepare our estimates and assist us in exercising judgment in determining the underlying estimates. Our statistical tracking model captures specific detail on hard drive reliability, such as factory test data, historical field return rates, and costs to repair by product type. Our judgment is subject to a greater degree of subjectivity with respect to newly introduced products because of limited field experience with those products upon which to base our warranty estimates. We review our warranty accrual quarterly for products shipped in prior periods and which are still under warranty. Any changes in the estimates underlying the accrual may result in adjustments that impact current period gross profit and income. Such changes are generally a result of differences between forecasted and actual return rate experience and costs to repair. If actual product return trends, costs to repair returned products or costs of customer compensatory claims differ significantly from our estimates, our future results of operations could be materially affected. For a summary of historical changes in estimates related to pre-existing warranty provisions, refer to Part II, Item 8, Note 4 of the Notes to the Consolidated Financial Statements included in this Annual Report on Form 10-K. Inventories We value inventories at the lower of cost (first-in, first-out and weighted average methods) or net realizable value. We use the first-in, first-out (“FIFO”) method to value the cost of the majority of our inventories, while we use the weighted-average method to value precious metal inventories. Weighted-average cost is calculated based upon the cost of precious metals at the time they are received by us. We have determined that it is not practicable to assign specific costs to individual units of precious metals and, as such, we relieve our precious metals inventory based on the weighted-average cost of the inventory at the time the inventory is used in production. The weighted-average method of valuing precious metals does not materially differ from a FIFO method. We record inventory write-downs for the valuation of inventory at the lower of cost or net realizable value by analyzing market conditions and estimates of future sales prices as compared to inventory costs and inventory balances. We evaluate inventory balances for excess quantities and obsolescence on a regular basis by analyzing estimated demand, inventory on hand, sales levels and other information, and reduce inventory balances to net realizable value for excess and obsolete inventory based on this analysis. Unanticipated changes in technology or customer demand could result in a decrease in demand for one or more of our products, which may require a write down of inventory that could materially affect operating results. Litigation and Other Contingencies When we become aware of a claim or potential claim, we assess the likelihood of any loss or exposure. We dis- close information regarding each material claim where the likelihood of a loss contingency is probable or reasonably possible. If a loss contingency is probable and the amount of the loss can be reasonably estimated, we record an accrual for the loss. In such cases, there may be an exposure to potential loss in excess of the amount accrued. Where a loss is not probable but is reasonably possible or where a loss in excess of the amount accrued is reasonably possible, we dis- close an estimate of the amount of the loss or range of possible losses for the claim if a reasonable estimate can be made, unless the amount of such reasonably possible losses is not material to our financial position, results of oper- ations or cash flows. The ability to predict the ultimate outcome of such matters involves judgments, estimates and inherent uncertainties. The actual outcome of such matters could differ materially from management’s esti- mates. Refer to Part II, Item 8, Note 5 in the Notes to Consolidated Financial Statements, included in this Annual Report on Form 10-K. Income Taxes We account for income taxes under the asset and liability method, which provides that deferred tax assets and liabilities be recognized for temporary differences between the financial reporting basis and the tax basis of our assets and liabilities and expected benefits of utilizing net operating loss and tax credit carryforwards. We record a valuation allowance when it is more likely than not that the deferred tax assets will not be realized. Each quarter, we evaluate the need for a valuation allowance for our deferred tax assets and we adjust the valuation allowance so that we record net deferred tax assets only to the extent that we conclude it is more likely than not that these deferred tax assets will be realized. 48 We recognize liabilities for uncertain tax positions based on a two-step process. To the extent a tax position does not meet a more-likely-than-not level of certainty, no benefit is recognized in the financial statements. If a position meets the more-likely-than-not level of certainty, it is recognized in the financial statements at the largest amount that has a greater than 50% likelihood of being realized upon ultimate settlement. Interest and penalties related to unrecognized tax benefits are recognized on liabilities recorded for uncertain tax positions and are recorded in our provision for income taxes. The actual liability for unrealized tax benefits in any such contingency may be materially different from our estimates, which could result in the need to record additional liabilities for unrecognized tax bene- fits or potentially adjust previously-recorded liabilities for unrealized tax benefits and materially affect our operating results. Stock-based Compensation We account for all stock-based compensation at fair value. Stock-based compensation cost is measured at the grant date based on the value of the award and is recognized as expense over the vesting period. The fair values of all stock options granted are estimated using a binomial model, and the fair values of all Employee Stock Purchase Plan purchase rights are estimated using the Black-Scholes-Merton option-pricing model. We account for stock apprecia- tion rights (“SARs”) as liability awards based upon our intention to settle such awards in cash. The SARs liability is recognized for that portion of fair value for the service period rendered at the reporting date. The share-based liability is remeasured at each reporting date through the requisite service period. Both the binomial and the Black-Scholes- Merton models require the input of highly subjective assumptions. We are required to use judgment in estimating the amount of stock-based awards that are expected to be forfeited. If actual forfeitures differ significantly from the origi- nal estimate, stock-based compensation expense and our results of operations could be materially affected. Goodwill and Other Long-Lived Assets The fair value of assets acquired and liabilities assumed in a business acquisition are recognized at the acquisition date, with amounts exceeding the fair values being recognized as goodwill. Goodwill is not amortized. Instead, it is tested for impairment on an annual basis or more frequently whenever events or changes in circumstances indicate that goodwill may be impaired. We perform our annual impairment test as of the first day of our fiscal fourth quarter. We either use qualitative factors to determine whether goodwill is more likely than not impaired or we perform a two-step approach to quantify impairment. If we conclude from the qualitative assessment that goodwill is more likely than not impaired, we are required to follow a two-step approach to quantify the impairment. We are required to use judgment when applying the goodwill impairment test, including the identification of reporting units, assignment of assets and liabilities to reporting units, assignment of goodwill to reporting units, and determination of the fair value of each reporting unit. In addition, the estimates used to determine the fair value of each reporting unit may change based on results of operations, macroeconomic conditions or other factors. Changes in these estimates could materially affect our assessment of the fair value and goodwill impairment for each reporting unit. Other intangible assets consist primarily of technology acquired in business combinations and in-process research and development. In-process research and development is not amortized until the point at which it reaches techno- logical feasibility. Instead, it is tested for impairment on an annual basis or more frequently whenever events or changes in circumstances indicate that it may be impaired. Acquired intangibles are amortized on a straight-line basis over their respective estimated useful lives. Long-lived assets are tested for recoverability whenever events or changes in circumstances indicate that their carrying amounts may not be recoverable. If impairment is indicated, the impairment is measured as the amount by which the carrying amount of the assets exceeds the fair value of the assets. Recent Accounting Pronouncements For a description of recently issued and adopted accounting pronouncements, including the respective dates of adoption and expected effects on our results of operations and financial condition, refer to Part II, Item 8, Note 1 of the Notes to Consolidated Financial Statements included in this Annual Report on Form 10-K, which is incorporated by reference in response to this item. 49 Item 7A. Quantitative and Qualitative Disclosures About Market Risk Disclosure About Foreign Currency Risk Although the majority of our transactions are in U.S. dollars, some transactions are based in various foreign cur- rencies. We purchase short-term, foreign exchange contracts to hedge the impact of foreign currency exchange fluctuations on certain underlying assets, liabilities and commitments for operating expenses and product costs denominated in foreign currencies. The purpose of entering into these hedge transactions is to minimize the impact of foreign currency fluctuations on our results of operations. The contract maturity dates do not exceed 12 months. We do not purchase foreign exchange contracts for trading purposes. See Part II, Item 8, Notes 1 and 12 in the Notes to Consolidated Financial Statements, included in this Annual Report on Form 10-K. As of July 3, 2015, we had outstanding the following purchased foreign exchange contracts (in millions, except weighted average contract rate): Contract Amount Weighted Average Contract Rate* Unrealized Gain (Loss) Foreign exchange contracts: Cash flow hedges: Japanese Yen . . . . . . . . . . . . . . . . . . . . . . . . . . . Malaysian Ringgit . . . . . . . . . . . . . . . . . . . . . . . Philippine Peso . . . . . . . . . . . . . . . . . . . . . . . . . Singapore Dollar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Thai Baht Fair value hedges: British Pound Sterling . . . . . . . . . . . . . . . . . . . . Euro . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Japanese Yen . . . . . . . . . . . . . . . . . . . . . . . . . . . Philippine Peso . . . . . . . . . . . . . . . . . . . . . . . . . Singapore Dollar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Thai Baht $163 $228 $ 51 $ 45 $628 7 $ $ 6 $ 81 $ 33 $ 15 $ 80 $118.43 $ 3.70 $ 44.95 $ 1.34 $ 33.36 0.64 $ $ 0.90 $122.93 $ 45.19 $ 1.34 $ 33.88 $ (4) $ (9) — $ — $(12) — — — — — — * Expressed in units of foreign currency per U.S. dollar In 2015, 2014 and 2013, total net realized transaction and foreign exchange contract currency gains and losses were not material to our consolidated financial statements. Disclosure About Other Market Risks Variable Interest Rate Risk Borrowings under the Credit Agreement bear interest at a rate equal to, at the option of the applicable Borrower, either (a) a customary London interbank offered rate (a “Eurodollar Rate”) or (b) a customary base rate (a “Base Rate”), in each case plus an applicable margin. The applicable margins range from 1.25% to 2.00% with respect to Euro- dollar Rate borrowings and 0.25% to 1.00% with respect to Base Rate borrowings. WDT, WDI and WD Interna- tional are also required to pay a commitment fee for the unused portion of the revolving credit facility, which ranges from 0.175% to 0.300% per annum. The applicable margins for borrowings and the commitment fee ranges are determined based upon a leverage ratio of us and our subsidiaries calculated on a consolidated basis. A one percent increase in the variable rate of interest on the term loan and revolving credit facility would increase interest expense by approximately $26 million annually. For additional information, see Part II, Item 8, Note 3 of the Notes to Con- solidated Financial Statements included in this Annual Report on Form 10-K. 50 Item 8. Financial Statements and Supplementary Data Index to Financial Statements and Financial Statement Schedule Consolidated Financial Statements: Reports of Independent Registered Public Accounting Firm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Consolidated Balance Sheets — July 3, 2015 and June 27, 2014 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Consolidated Statements of Income — Three Years Ended July 3, 2015 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Consolidated Statements of Comprehensive Income — Three Years Ended July 3, 2015 . . . . . . . . . . . . . . . . Consolidated Statements of Cash Flows — Three Years Ended July 3, 2015 . . . . . . . . . . . . . . . . . . . . . . . . . . Consolidated Statements of Shareholders’ Equity — Three Years Ended July 3, 2015 . . . . . . . . . . . . . . . . . . Notes to Consolidated Financial Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 52 54 55 56 57 58 59 Financial Statement Schedule: Schedule II — Consolidated Valuation and Qualifying Accounts — Three Years Ended July 3, 2015 . . . . . . 92 51 REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM The Board of Directors and Shareholders Western Digital Corporation: We have audited the accompanying consolidated balance sheets of Western Digital Corporation and subsidiaries as of July 3, 2015 and June 27, 2014, and the related consolidated statements of income, comprehensive income, shareholders’ equity, and cash flows for each of the years in the three-year period ended July 3, 2015. In connection with our audits of the consolidated financial statements, we have also audited the related financial statement schedule. These consolidated financial statements and financial statement schedule are the responsibility of the Company’s management. Our responsibility is to express an opinion on these consolidated financial statements and financial statement schedule based on our audits. We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evi- dence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion. In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of Western Digital Corporation and subsidiaries as of July 3, 2015 and June 27, 2014, and the results of their operations and their cash flows for each of the years in the three-year period ended July 3, 2015, in conformity with U.S. generally accepted accounting principles. Also, in our opinion, the related financial statement schedule, when considered in relation to the basic consolidated financial statements taken as a whole, presents fairly, in all material respects, the information set forth therein. We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), Western Digital Corporation and subsidiaries’ internal control over financial reporting as of July 3, 2015, based on criteria established in Internal Control — Integrated Framework (1992) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO), and our report dated August 21, 2015, expressed an unqualified opinion on the effectiveness of the Company’s internal control over financial reporting. August 21, 2015 Irvine, California /s/ KPMG LLP 52 REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM The Board of Directors and Shareholders Western Digital Corporation: We have audited Western Digital Corporation and subsidiaries’ internal control over financial reporting as of July 3, 2015, based on criteria established in Internal Control — Integrated Framework (1992) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management’s Report on Internal Control over Finan- cial Reporting appearing under Item 9A. Our responsibility is to express an opinion on the Company’s internal con- trol over financial reporting based on our audit. We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audit also included performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion. A company’s internal control over financial reporting is a process designed to provide reasonable assurance regard- ing the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with U.S. generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding pre- vention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements. Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstate- ments. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate. In our opinion, Western Digital Corporation and subsidiaries maintained, in all material respects, effective internal control over financial reporting as of July 3, 2015, based on criteria established in Internal Control — Integrated Framework (1992) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the consolidated balance sheets of Western Digital Corporation and subsidiaries as of July 3, 2015 and June 27, 2014, the related consolidated statements of income, comprehensive income, shareholders’ equity, and cash flows for each of the years in the three-year period ended July 3, 2015, and the related financial statement sched- ule, and our report dated August 21, 2015, expressed an unqualified opinion on those consolidated financial state- ments and financial statement schedule. August 21, 2015 Irvine, California /s/ KPMG LLP 53 WESTERN DIGITAL CORPORATION CONSOLIDATED BALANCE SHEETS (in millions, except par value) July 3, 2015 June 27, 2014 ASSETS Current assets: Cash and cash equivalents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Short-term investments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Accounts receivable, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Inventories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Other current assets $ 5,024 262 1,532 1,368 331 Total current assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Property, plant and equipment, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Goodwill Other intangible assets, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Other non-current assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8,517 2,965 2,766 332 601 $ 4,804 284 1,989 1,226 417 8,720 3,293 2,559 454 473 Total assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $15,181 $15,499 LIABILITIES AND SHAREHOLDERS’ EQUITY Current liabilities: Accounts payable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Accrued arbitration award . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Accrued expenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Accrued compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Accrued warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Revolving credit facility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Current portion of long-term debt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Total current liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Long-term debt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Other liabilities Total liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 1,881 — 470 330 150 255 156 3,242 2,156 564 5,962 $ 1,971 758 412 460 119 — 125 3,845 2,313 499 6,657 Commitments and contingencies (Notes 4 and 5) Shareholders’ equity: Preferred stock, $.01 par value; authorized — 5 shares; issued and outstanding — none . . . . Common stock, $.01 par value; authorized — 450 shares; issued — 261 shares; outstanding — 230 and 234 shares, respectively . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Additional paid-in capital . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Accumulated other comprehensive income (loss) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Retained earnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Treasury stock — common shares at cost; 31 shares and 27 shares, respectively . . . . . . . . . . — — 3 2,428 (20) 9,107 (2,299) 3 2,331 12 8,066 (1,570) Total shareholders’ equity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9,219 8,842 Total liabilities and shareholders’ equity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $15,181 $15,499 The accompanying notes are an integral part of these consolidated financial statements. 54 WESTERN DIGITAL CORPORATION CONSOLIDATED STATEMENTS OF INCOME (in millions, except per share amounts) July 3, 2015 Years Ended June 27, 2014 Revenue, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cost of revenue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $14,572 10,351 $15,130 10,770 June 28, 2013 $15,351 10,988 Gross profit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4,221 4,360 4,363 Operating expenses: Research and development . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Selling, general and administrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Charges related to arbitration award . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Employee termination, asset impairment and other charges . . . . . . . . . . . . . . . . Total operating expenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Other income (expense): Interest and other income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Interest and other expense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Total other expense, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1,646 773 15 176 2,610 1,611 15 (49) (34) 1,661 761 52 95 2,569 1,791 17 (56) (39) Income before income taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Income tax provision . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1,577 112 1,752 135 Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 1,465 $ 1,617 Income per common share: Basic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Diluted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Weighted average shares outstanding: Basic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Diluted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ $ 6.31 6.18 $ $ 6.88 6.68 232 237 235 242 1,572 706 681 138 3,097 1,266 11 (55) (44) 1,222 242 980 4.07 3.98 241 246 $ $ $ The accompanying notes are an integral part of these consolidated financial statements. 55 WESTERN DIGITAL CORPORATION CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (in millions) Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Other comprehensive income (loss), net of tax: Net actuarial pension gain (loss) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Translation loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Net unrealized gain (loss) on foreign exchange contracts . . . . . . . . . . . . . . . . . . . . . Other comprehensive income (loss) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Years Ended June 27, 2014 June 28, 2013 July 3, 2015 $1,465 $1,617 $980 (2) — (30) (32) (4) — 51 47 14 (4) (30) (20) Total comprehensive income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $1,433 $1,664 $960 The accompanying notes are an integral part of these consolidated financial statements. 56 WESTERN DIGITAL CORPORATION CONSOLIDATED STATEMENTS OF CASH FLOWS (in millions) Cash flows from operating activities Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Adjustments to reconcile net income to net cash provided by operations: Depreciation and amortization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Stock-based compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Deferred income taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Gain from insurance recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Loss on disposal of assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Non-cash portion of employee termination, asset impairment and other charges . . . . . . . . . . . . . . . . . . . . . Other non-cash operating activities, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Changes in: Accounts receivable, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Inventories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Accounts payable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Accrued arbitration award . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Accrued expenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Accrued compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Other assets and liabilities Years Ended June 27, 2014 June 28, 2013 July 3, 2015 $ 1,465 $ 1,617 $ 980 1,114 162 28 (37) 17 86 — 458 (143) (148) (758) 35 (134) 97 1,244 156 (13) (65) 40 62 9 (175) — (32) 52 (56) 7 (30) 1,233 137 35 — — 19 — 584 22 (511) 681 (122) 77 (16) Net cash provided by operating activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2,242 2,816 3,119 Cash flows from investing activities Purchases of property, plant and equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Acquisitions, net of cash acquired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Purchases of investments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Proceeds from sales and maturities of investments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Other investing activities, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Net cash used in investing activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cash flows from financing activities Issuance of stock under employee stock plans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Taxes paid on vested stock awards under employee stock plans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Excess tax benefits from employee stock plans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Repurchases of common stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dividends paid to shareholders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Repayment of debt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Proceeds from debt, net of issuance costs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (612) (257) (857) 768 5 (953) 212 (64) 19 (970) (396) (125) 255 (628) (823) (561) 72 4 (1,936) 187 (32) 60 (816) (259) (2,517) 2,992 (952) (1) (17) — — (970) 185 (25) 45 (842) (181) (230) — Net cash used in financing activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (1,069) (385) (1,048) Net increase in cash and cash equivalents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cash and cash equivalents, beginning of year 220 4,804 495 4,309 1,101 3,208 Cash and cash equivalents, end of year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 5,024 $ 4,804 $ 4,309 Supplemental disclosure of cash flow information: Cash paid for income taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cash paid for interest . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Supplemental disclosure of non-cash financing activities: Accrual of cash dividend declared . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ $ $ 47 45 116 $ $ $ 141 46 94 $ $ $ 146 49 59 The accompanying notes are an integral part of these consolidated financial statements. 57 ) 5 1 ( $ 3 2 2 , 2 $ ) 4 5 5 ( $ 4 8 3 ) 5 1 ( 0 1 3 $ 1 6 2 r e h t O d e t a l u m u c c A l a n o i t i d d A e v i s n e h e r p m o C ) s s o L ( e m o c n I n I - d i a P l a t i p a C k c o t S y r u s a e r T k c o t S n o m m o C t n u o m A s e r a h S t n u o m A s e r a h S I Y T U Q E ’ S R E D L O H E R A H S F O S T N E M E T A T S D E T A D I L O S N O C ) s n o i l l i m n i ( I N O T A R O P R O C L A T G D N R E T S E W I I l a t o T ’ s r e d l o h e r a h S y t i u q E 9 6 6 , 7 $ d e n i a t e R s g n i n r a E 2 1 0 , 6 $ 0 6 1 1 4 1 5 4 ) 2 4 8 ( ) 0 4 2 ( 0 8 9 ) 4 ( 4 1 ) 0 3 ( ) 3 4 2 ( 0 8 9 5 5 1 6 5 1 5 2 0 6 ) 6 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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . n o i t a s n e p m o c d e s a b k c o t S . . . . s n a l p k c o t s e e y o l p m E 2 1 0 2 , 9 2 e n u J t a e c n a l a B s n a l p k c o t s e e y o l p m e m o r f s t i f e n e b x a t s s e c x e n i e s a e r c n I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . k c o t s n o m m o c f o e s a h c r u p e R . . . . . . . . . s r e d l o h e r a h s o t s d n e d i v i D . . . . . . . . . . . . . e m o c n i t e N n i a g n o i s n e p l a i r a u t c A s n i a g n o i t a l s n a r t y c n e r r u c n g i e r o F s t c a r t n o c e g n a h c x e n g i e r o f n o s s o l d e z i l a e r n U . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . n o i t a s n e p m o c d e s a b k c o t S . . . . s n a l p k c o t s e e y o l p m E 3 1 0 2 , 8 2 e n u J t a e c n a l a B n o i t i s i u q c a n i d e m u s s a s d r a w a k c o t S 58 s n a l p k c o t s e e y o l p m e m o r f s t i f e n e b x a t s s e c x e n i e s a e r c n I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . k c o t s n o m m o c f o s e s a h c r u p e R . . . . . . . . . s r e d l o h e r a h s o t s d n e d i v i D . . . . . . . . . . . . . . e m o c n i t e N s s o l n o i s n e p l a i r a u t c A s t c a r t n o c e g n a h c x e n g i e r o f n o n i a g d e z i l a e r n U . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . n o i t a s n e p m o c d e s a b k c o t S . . . . s n a l p k c o t s e e y o l p m E 4 1 0 2 , 7 2 e n u J t a e c n a l a B n o i t i s i u q c a n i d e m u s s a s d r a w a k c o t S s n a l p k c o t s e e y o l p m e m o r f s t i f e n e b x a t s s e c x e n i e s a e r c n I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . k c o t s n o m m o c f o s e s a h c r u p e R . . . . . . . . . s r e d l o h e r a h s o t s d n e d i v i D . . . . . . . . . . . . . . e m o c n i t e N s s o l n o i s n e p l a i r a u t c A s t c a r t n o c e g n a h c x e n g i e r o f n o s s o l d e z i l a e r n U . . . . . . . . . . . . . . . . . . 5 1 0 2 , 3 y l u J t a e c n a l a B WESTERN DIGITAL CORPORATION NOTES TO CONSOLIDATED FINANCIAL STATEMENTS Note 1. Organization and Summary of Significant Accounting Policies Western Digital Corporation (the “Company” or “Western Digital”) is a leading developer, manufacturer and provider of data storage solutions that enable consumers, businesses, governments and other organizations to create, manage, experience and preserve digital content. The Company’s product portfolio includes hard disk drives (“HDDs”), solid-state drives (“SSDs”), direct attached storage solutions, personal cloud network attached storage sol- utions, and public and private cloud data center storage solutions. HDDs are the Company’s principal products and are today’s primary storage medium for the vast majority of digital content, with the use of solid-state storage prod- ucts growing rapidly. The Company’s products are marketed under the HGST, WD and G-Technology brand names. The Company has prepared its consolidated financial statements in accordance with accounting principles gen- erally accepted in the United States (“U.S. GAAP”) and has adopted accounting policies and practices which are gen- erally accepted in the industry in which it operates. The Company’s significant accounting policies are summarized below. Fiscal Year The Company has a 53 or 52-week fiscal year. The 2015 fiscal year ended on July 3, 2015 and consisted of 53 weeks. The 2014 and 2013 fiscal years ended on June 27, 2014 and June 28, 2013, respectively, and both consisted of 52 weeks. Basis of Presentation The consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries. All significant intercompany accounts and transactions have been eliminated in consolidation. In fiscal 2015, 2014, and 2013, the accounts for all foreign subsidiaries have been remeasured using the U.S. dollar as the functional cur- rency. Gains or losses resulting from remeasurement of these accounts from local currencies into U.S. dollars were immaterial to the consolidated financial statements. The Company acquired Amplidata NV (“Amplidata”) on March 9, 2015, Virident Systems, Inc. (“Virident”) on October 17, 2013, and sTec, Inc. (“sTec”) on September 12, 2013. In connection with the acquisitions, Amplidata, Vir- ident, and sTec became indirect wholly-owned subsidiaries of the Company. The results of operations of Amplidata, Virident, and sTec since the respective dates of acquisition are included in the consolidated financial statements. Cash and Cash Equivalents The Company’s cash equivalents represent highly liquid investments in money market funds, which are invested in U.S. Treasury securities and U.S. Government agency securities as well as direct investments in bank acceptances with original maturities when purchased of three months or less. Cash equivalents are carried at cost, which approx- imates fair value. Investments The Company’s investments in U.S. Treasury securities, U.S. Government agency securities, commercial paper and certificates of deposit with original maturities at purchase of more than three months. These investments are classified as available-for-sale securities and included within short-term investments and other non-current assets in the consolidated balance sheets. Available-for-sale securities are stated at fair value with unrealized gains and losses included in accumulated other comprehensive income (loss), which is a component of shareholders’ equity. Gains and losses on available-for-sale securities are recorded based on the specific identification method. The Company evaluates the available-for sale securities in an unrealized loss position for other-than-temporary impairment. The amortized cost of available-for-sale securities is adjusted for amortization of premiums and accretion of discounts to maturity. Such amortization and accretion are included in total other expense, net in the consolidated statements of income. In addition, realized gains and losses are included in total other expense, net in the consolidated statements of income. 59 WESTERN DIGITAL CORPORATION NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued) In addition, the Company enters into certain strategic investments for the promotion of business and strategic objectives. These strategic investments are recorded at cost within other non-current assets in the consolidated balance sheets and were not material to the consolidated financial statements as of July 3, 2015. They are also periodically analyzed to determine whether or not there are indicators of impairment. Fair Value of Financial Instruments The carrying amounts of cash equivalents, accounts receivable, investments, accounts payable and accrued expenses approximate fair value for all periods presented because of the short-term maturity of these assets and liabilities or, in the case of investments, these are recorded using appropriate market information. The carrying amount of debt approximates fair value because of its variable interest rate. Concentration of Credit Risk The Company sells its products to computer manufacturers, resellers and retailers throughout the world. The Company performs ongoing credit evaluations of financial condition and generally requires no its customers’ collateral. The Company maintains allowances for potential credit losses, and such losses have historically been within management’s expectations. At any given point in time, the total amount outstanding from any one of a number of its customers may be individually significant to the Company’s financial results. At July 3, 2015 and June 27, 2014, the Company had two customers that accounted for 30% and 29%, respectively, of the Company’s net accounts receiv- able. At July 3, 2015 and June 27, 2014, the Company had reserves for potential credit losses of $7 million and $11 million, respectively, and net accounts receivable of $1.5 billion and $2.0 billion, respectively. The Company also has cash equivalent and investment policies that limit the amount of credit exposure to any one financial institution or investment instrument and requires that investments be made only with financial institutions or in investment instruments evaluated as highly credit-worthy. Inventories The Company values inventories at the lower of cost (first-in, first out and weighted average methods) or net realizable value. The first-in, first-out (“FIFO”) method is used to value the cost of the majority of the Company’s inventories, while the weighted-average method is used to value precious metal inventories. Weighted-average cost is calculated based upon the cost of precious metals at the time they are received by the Company. The Company has determined that it is not practicable to assign specific costs to individual units of precious metals and, as such, pre- cious metals are relieved from inventory based on the weighted-average cost of the inventory at the time the inventory is used in production. The weighted average method of valuing precious metals does not materially differ from the FIFO method. As of July 3, 2015 and June 27, 2014, 96% and 92%, respectively, of the inventory was valued using the FIFO method with the remainder valued using the weighted average method. Inventory write-downs are recorded for the valuation of inventory at the lower of cost or net realizable value by analyzing market conditions and estimates of future sales prices as compared to inventory costs and inventory balances. The Company evaluates inventory balances for excess quantities and obsolescence on a regular basis by analyzing estimated demand, inventory on hand, sales levels and other information, and reduces inventory balances to net realiz- able value for excess and obsolete inventory based on this analysis. Unanticipated changes in technology or customer demand could result in a decrease in demand for one or more of the Company’s products, which may require a write down of inventory that could materially affect operating results. Property, Plant and Equipment The cost of property, plant and equipment is depreciated over the estimated useful lives of the respective assets. The Company’s buildings are depreciated over periods ranging from fifteen to thirty years. The majority of the 60 WESTERN DIGITAL CORPORATION NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued) Company’s equipment is depreciated over periods of two to seven years. Depreciation is computed on a straight-line basis. Leasehold improvements are amortized over the lesser of the estimated useful lives of the assets or the related lease terms. Goodwill and Other Long-Lived Assets The fair value of assets acquired and liabilities assumed in a business acquisition are recognized at the acquisition date, with amounts exceeding the fair values being recognized as goodwill. Goodwill is not amortized. Instead, it is tested for impairment on an annual basis or more frequently whenever events or changes in circumstances indicate that goodwill may be impaired. The Company performs its annual impairment test as of the first day of its fiscal fourth quarter. The Company either uses qualitative factors to determine whether goodwill is more likely than not impaired or performs a two-step approach to quantify impairment. If the Company concludes from the qualitative assessment that goodwill is more likely than not impaired, it is required to follow a two-step approach to quantify the impairment. The Company is required to use judgment when applying the goodwill impairment test, including the identification of reporting units, assignment of assets and liabilities to reporting units, assignment of goodwill to reporting units, and determination of the fair value of each reporting unit. In addition, the estimates used to determine the fair value of each reporting unit may change based on results of operations, macroeconomic conditions or other factors. Changes in these estimates could materially affect the Company’s assessment of the fair value and goodwill impairment for each reporting unit. The Company did not record any impairment of goodwill during 2015, 2014, or 2013. Other intangible assets consist primarily of technology acquired in business combinations and in-process research and development. In-process research and development is not amortized until the point at which it reaches techno- logical feasibility. Instead, it is instead tested for impairment on an annual basis or more frequently whenever events or changes in circumstances indicate that it may be impaired. Acquired intangibles are amortized on a straight-line basis over their respective estimated useful lives. Long-lived assets are tested for recoverability whenever events or changes in circumstances indicate that their carrying amounts may not be recoverable. If impairment is indicated, the impairment is measured as the amount by which the carrying amount of the assets exceeds the fair value of the assets. The Company recorded impairments to certain long-lived assets in 2015, 2014 and 2013. See Notes 13 and 17 below. Revenue and Accounts Receivable Revenue is recognized when the title and risk of loss have passed to the customer, there is persuasive evidence of an arrangement, delivery has occurred, or services have been rendered, the sales price is fixed or determinable and col- lectability is reasonably assured. The Company establishes provisions against revenue and cost of revenue for estimated sales returns in the same period that the related revenue is recognized based on existing product return notifications. If actual sales returns exceed expectations, an increase in the sales return accrual would be required, which could materi- ally affect operating results. In accordance with standard industry practice, the Company provides distributors and retailers (collectively referred to as “resellers”) with limited price protection for inventories held by resellers at the time of published list price reductions, and the Company provides resellers and original equipment manufacturers (“OEMs”) with other sales incentive programs. At the time the Company recognizes revenue to resellers and OEMs, a reduction of revenue is recorded for estimated price protection until the resellers sell such inventory to their customers and the Company also records a reduction of revenue for the other programs in effect. The Company bases these adjustments on several fac- tors including anticipated price decreases during the reseller holding period, reseller’s sell-through and inventory lev- els, estimated amounts to be reimbursed to qualifying customers, historical pricing information and customer claim processing. If customer demand for the Company’s products or market conditions differ from the Company’s expect- ations, the Company’s operating results could be materially affected. The Company also has programs under which it reimburses qualified distributors and retailers for certain marketing expenditures, which are recorded as a reduction of revenue. Customer sales incentive and marketing programs are recorded as a reduction of revenue. 61 WESTERN DIGITAL CORPORATION NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued) The Company records an allowance for doubtful accounts by analyzing specific customer accounts and assessing the risk of loss based on insolvency, disputes or other collection issues. In addition, the Company routinely analyzes the different receivable aging categories and establishes reserves based on a combination of past due receivables and expected future losses based primarily on its historical levels of bad debt losses. If the financial condition of a sig- nificant customer deteriorates resulting in its inability to pay its accounts when due, or if the Company’s overall loss history changes significantly, an adjustment in the Company’s allowance for doubtful accounts would be required, which could materially affect operating results. From time to time, in connection with a factoring agreement, the Company sells trade accounts receivable with- out recourse to a third party purchaser in exchange for cash. The Company sold trade accounts receivable and received cash proceeds of $269 million, $187 million and $148 million during 2015, 2014 and 2013, respectively. The dis- counts on the sales of trade accounts receivables were not material and were recorded within interest and other expense in the consolidated statements of income. Warranty The Company records an accrual for estimated warranty costs when revenue is recognized. The Company gen- erally warrants its products for a period of one to five years. The warranty provision considers estimated product fail- ure rates and trends, estimated replacement costs, estimated repair costs which include scrap costs, and estimated costs for customer compensatory claims related to product quality issues, if any. A statistical warranty tracking model is used to help prepare estimates and assist the Company in exercising judgment in determining the underlying esti- mates. The statistical tracking model captures specific detail on hard drive reliability, such as factory test data, histor- ical field return rates, and costs to repair by product type. Management’s judgment is subject to a greater degree of subjectivity with respect to newly introduced products because of limited field experience with those products upon which to base warranty estimates. Management reviews the warranty accrual quarterly for products shipped in prior periods and which are still under warranty. Any changes in the estimates underlying the accrual may result in adjust- ments that impact current period gross profit and income. Such changes are generally a result of differences between forecasted and actual return rate experience and costs to repair. If actual product return trends, costs to repair returned products or costs of customer compensatory claims differ significantly from estimates, future results of operations could be materially affected. Litigation and Other Contingencies When the Company becomes aware of a claim or potential claim, the Company assesses the likelihood of any loss or exposure. The Company discloses information regarding each material claim where the likelihood of a loss con- tingency is probable or reasonably possible. If a loss contingency is probable and the amount of the loss can be reason- ably estimated, the Company records an accrual for the loss. In such cases, there may be an exposure to potential loss in excess of the amount accrued. Where a loss is not probable but is reasonably possible or where a loss in excess of the amount accrued is reasonably possible, the Company discloses an estimate of the amount of the loss or range of possi- ble losses for the claim if a reasonable estimate can be made, unless the amount of such reasonably possible losses is not material to the Company’s financial position, results of operations or cash flows. The ability to predict the ulti- mate outcome of such matters involves judgments, estimates and inherent uncertainties. The actual outcome of such matters could differ materially from management’s estimates. See Note 5 below. Advertising Expense Advertising costs are expensed as incurred. Selling, general and administrative expenses of the Company included advertising costs of $71 million, $60 million and $61 million in 2015, 2014 and 2013, respectively. 62 WESTERN DIGITAL CORPORATION NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued) Income Taxes The Company accounts for income taxes under the asset and liability method, which provides that deferred tax assets and liabilities be recognized for temporary differences between the financial reporting basis and the tax basis of assets and liabilities and expected benefits of utilizing net operating loss (“NOL”) and tax credit carryforwards. The Company records a valuation allowance when it is more likely than not that the deferred tax assets will not be realized. Each period, the Company evaluates the need for a valuation allowance for its deferred tax assets and adjusts the valu- ation allowance so that the Company records net deferred tax assets only to the extent that it has concluded it is more likely than not that these deferred tax assets will be realized. The Company recognizes liabilities for uncertain tax positions based on a two-step process. To the extent a tax position does not meet a more-likely-than-not level of certainty, no benefit is recognized in the financial statements. If a position meets the more-likely-than-not level of certainty, it is recognized in the financial statements at the largest amount that has a greater than 50% likelihood of being realized upon ultimate settlement. Interest and penalties related to unrecognized tax benefits are recognized in liabilities recorded for uncertain tax positions and are recorded in the provision for income taxes. The actual liability for unrealized tax benefits in any such contingency may be materially different from the Company’s estimates, which could result in the need to record additional liabilities for unrecognized tax benefits or potentially adjust previously-recorded liabilities for unrealized tax benefits, and may materially affect the Company’s operating results. Income per Common Share The Company computes basic income per common share using net income and the weighted average number of common shares outstanding during the period. Diluted income per common share is computed using net income and the weighted average number of common shares and potentially dilutive common shares outstanding during the period. Potentially dilutive common shares include certain dilutive outstanding employee stock options, rights to purchase shares of common stock under the Company’s Employee Stock Purchase Plan (“ESPP”) and restricted stock unit awards (“RSUs”). The following table illustrates the computation of basic and diluted income per common share (in millions, except per share data): Years Ended June 27, 2014 June 28, 2013 July 3, 2015 Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $1,465 $1,617 $ 980 Weighted average shares outstanding: Basic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Employee stock options and other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Diluted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232 5 237 235 7 242 241 5 246 Income per common share: Basic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 6.31 $ 6.88 $4.07 Diluted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 6.18 $ 6.68 $3.98 Anti-dilutive potential common shares excluded* . . . . . . . . . . . . . . . . . . . . 1 2 3 * For purposes of computing diluted income per common share, certain potentially dilutive securities have been excluded from the calculation because their effect would have been anti-dilutive. 63 WESTERN DIGITAL CORPORATION NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued) Stock-based Compensation The Company accounts for all stock-based compensation at fair value. Stock-based compensation cost is measured at the grant date based on the value of the award and is recognized as expense over the vesting period. The fair values of all stock options granted are estimated using a binomial option-pricing model, and the fair values of all ESPP pur- chase rights are estimated using the Black-Scholes-Merton option-pricing model. The Company accounts for stock appreciation rights (“SARs”) as liability awards based upon management’s intention to settle such awards in cash. The SARs liability is recognized for that portion of fair value for the service period rendered at the reporting date. The share-based liability is remeasured at each reporting date through the requisite service period. Both the binomial and the Black-Scholes-Merton option-pricing models require the input of highly subjective assumptions. The Company is required to use judgment in estimating the amount of stock-based awards that are expected to be forfeited. If actual forfeitures differ significantly from the original estimate, stock-based compensation expense and the results of oper- ations could be materially affected. Other Comprehensive Income (Loss) Other comprehensive income (loss) refers to revenue, expenses, gains and losses that are recorded as an element of shareholders’ equity but are excluded from net income. The Company’s other comprehensive income (loss) is com- prised of unrealized gains and losses on foreign exchange contracts, foreign currency translation gains and losses, and actuarial gains and losses related to pensions. The income tax impact on components of other comprehensive income is immaterial for all periods presented. The following table illustrates the changes in the balances of each component of accumulated comprehensive income for 2015, 2014 and 2013: Actuarial Pension Gains (Losses) Foreign Currency Translation Gains (Losses) Unrealized Gains (Losses) on Foreign Exchange Contracts Accumulated Other Comprehensive Income (Loss) Balance at June 29, 2012 . . . . . . . . . . . . . . . . . . . . . . . . . . . . Other comprehensive income before reclassifications . . . . Amounts reclassified from accumulated other comprehensive income . . . . . . . . . . . . . . . . . . . . . . . . . Net current-period other comprehensive income (loss) . . . . . . . Balance at June 28, 2013 . . . . . . . . . . . . . . . . . . . . . . . . . . . . Other comprehensive income before reclassifications . . . . Amounts reclassified from accumulated other comprehensive income . . . . . . . . . . . . . . . . . . . . . . . . . Net current-period other comprehensive income (loss) . . . . . . . Balance at June 27, 2014 . . . . . . . . . . . . . . . . . . . . . . . . . . . . Other comprehensive income before reclassifications . . . . Amounts reclassified from accumulated other comprehensive income . . . . . . . . . . . . . . . . . . . . . . . . . Net current-period other comprehensive income (loss) . . . . . . . $ (3) — 14 14 $11 — (4) (4) $ 7 — (2) (2) $ 4 — (4) (4) $— — — — $— — — — Balance at July 3, 2015 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 5 $— $(16) 13 (43) (30) $(46) 13 38 51 $ 5 (74) 44 (30) $(25) $(15) 13 (33) (20) $(35) 13 34 47 $ 12 (74) 42 (32) $(20) 64 WESTERN DIGITAL CORPORATION NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued) Foreign Exchange Contracts Although the majority of the Company’s transactions are in U.S. dollars, some transactions are based in various foreign currencies. The Company purchases short-term, foreign exchange contracts to hedge the impact of foreign currency fluctuations on certain underlying assets, liabilities and commitments for operating expenses and product costs denominated in foreign currencies. The purpose of entering into these hedging transactions is to minimize the impact of foreign currency fluctuations on the Company’s results of operations. The contract maturity dates do not exceed 12 months. All foreign exchange contracts are for risk management purposes only. The Company does not purchase foreign exchange contracts for trading purposes. The Company had foreign exchange contracts with commercial banks for British Pound Sterling, Euro, Japanese Yen, Malaysian Ringgit, Philippine Peso, Singapore Dollar and Thai Baht, which were designated as either cash flow or fair value hedges and had an aggregate notional amount of $1.3 billion and $1.5 billion at July 3, 2015 and June 27, 2014, respectively. If the derivative is designated as a cash flow hedge, the effective portion of the change in fair value of the derivative is initially deferred in other comprehensive income (loss). These amounts are subsequently recognized into earnings when the underlying cash flow being hedged is recognized into earnings. Recognized gains and losses on foreign exchange contracts entered into for manufacturing-related activities are reported in cost of revenue and pre- sented within cash flow from operations. Hedge effectiveness is measured by comparing the hedging instrument’s cumulative change in fair value from inception to maturity to the underlying exposure’s terminal value. The Company determined the ineffectiveness associated with its cash flow hedges to be immaterial for all years presented. A change in the fair value of fair value hedges is recognized in earnings in the period incurred and is reported as a component of operating expenses. All fair value hedges were determined to be effective. The changes in fair value on these contracts were immaterial to the consolidated financial statements for all years presented. See Notes 10 and 12 below. Pensions and Other Postretirement Benefit Plans The Company has defined benefit pension plans and other postretirement plans covering certain employees in various countries. The benefits are based on the employees’ years of service and compensation. The plans are funded in conformity with the funding requirements of applicable government authorities. The Company amortizes unrecog- nized actuarial gains and losses and prior service costs on a straight-line basis over the remaining estimated average service life of the participants. The measurement date for the plans is the Company’s fiscal year-end. The Company recognizes the funded status of its defined benefit pension and postretirement plans in the consolidated balance sheets, with changes in the funded status recognized through accumulated other comprehensive income (loss) in the year in which such changes occur. See Note 14 below. Use of Estimates Company management has made estimates and assumptions relating to the reporting of certain assets and liabilities in conformity with U.S. GAAP. These estimates and assumptions have been applied using methodologies that are con- sistent throughout the periods presented. However, actual results could differ materially from these estimates. Recent Accounting Pronouncements In May 2015, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2015-07, “Fair Value Measurement (Topic 820): Disclosures for Investments in Certain Entities That Calculate Net Asset Value per Share (or Its Equivalent)” (“ASU 2015-07”). This guidance eliminates the requirement to catego- rize investments within the fair value hierarchy if their fair value is measured using the net asset value (“NAV”) per share practical expedient in the FASB’s fair value measurement guidance. The new standard is effective for fiscal years and interim periods within those fiscal years, beginning after December 15, 2015, which for the Company is the first quarter of fiscal 2017. The Company does not expect the adoption of ASU 2015-07 to have a material effect on its consolidated financial statements. 65 WESTERN DIGITAL CORPORATION NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued) In April 2015, the FASB issued ASU 2015-03, “Interest—Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs” (“ASU 2015-03”). The new standard requires debt issuance costs related to a recognized debt liability to be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The new standard is effective for fiscal years and interim periods within those fiscal years, beginning after December 15, 2015, which for the Company is the first quarter of fiscal 2017. The adoption of ASU 2015-03 will not have a material effect on the Company’s consolidated financial statements. In May 2014, the FASB issued ASU 2014-09, “Revenue from Contracts with Customers” (“ASU 2014-09”), which amends the guidance in former Accounting Standards Codification Topic 605, “Revenue Recognition,” to pro- vide a single, comprehensive revenue recognition model for all contracts with customers. The new standard requires an entity to recognize revenue in a manner that depicts the transfer of promised goods or services to customers in amounts that reflect the consideration to which an entity expects to be entitled in exchange for those goods or services. The new standard also requires entities to enhance disclosures about the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. In July 2015, the FASB approved a one-year deferral of the effective date of this ASU. The new standard allows for either a full retrospective or a modified retrospective tran- sition method and is effective for fiscal years beginning after December 15, 2017, which for the Company is the first quarter of fiscal 2019. The Company has not yet selected a transition method and is currently evaluating the impact ASU 2014-09 will have on its consolidated financial statements and related disclosures. In July 2013, the FASB issued ASU 2013-11, “Income Taxes (Topic 740): Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists.” The new standard requires the presentation of certain unrecognized tax benefits as reductions to deferred tax assets rather than as liabilities in the consolidated balance sheets when a NOL carryforward, a similar tax loss, or a tax credit carryfor- ward exists. The new standard is effective for fiscal years and interim periods within those fiscal years, beginning after December 15, 2013, which for the Company was the first quarter of fiscal 2015. The Company adopted this pro- nouncement in the first quarter of fiscal 2015, and it did not have a material effect on the Company’s consolidated financial statements. Note 2. Supplemental Financial Statement Data July 3, 2015 June 27, 2014 (In millions) Inventories: Raw materials and component parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Work-in-process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Finished goods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 168 500 700 $ 168 493 565 Total inventories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 1,368 $ 1,226 Property, plant and equipment: Land and buildings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Machinery and equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Furniture and fixtures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Leasehold improvements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Construction-in-process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 1,441 6,520 71 276 296 $ 1,364 6,109 54 254 342 Total property, plant and equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Accumulated depreciation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8,604 (5,639) 8,123 (4,830) Property, plant and equipment, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 2,965 $ 3,293 66 WESTERN DIGITAL CORPORATION NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued) Note 3. Debt Long-term debt consisted of the following as of July 3, 2015 and June 27, 2014 (in millions): Term loan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Less amounts due in one year $2,312 (156) July 3, 2015 June 27, 2014 $2,438 (125) Long-term debt . . . . . . . . . . . . . . . . . . . . . . . . . . . $2,156 $2,313 On January 9, 2014, the Company, Western Digital Technologies, Inc. (“WDT”) and Western Digital Ireland, Inc. (“WDI”) entered into a new credit agreement with JPMorgan Chase Bank, N.A., as administrative agent, and the lenders party thereto, which was subsequently amended on February 25, 2015 (as amended, the “Credit Agreement”) to add Western Digital International, Ltd. (“WD International”) as an additional borrower. The Credit Agreement provides for $4.0 billion of unsecured loan facilities consisting of a $2.5 billion term loan facility to WDT and a $1.5 billion revolving credit facility to WDT, WDI and WD International (each, a “Borrower” and collectively, the “Borrowers”). The revolving credit facility includes a $100 million sublimit for letters of credit and a $50 mil- lion sublimit for swing line loans. Subject to certain conditions, a Borrower may elect to expand the credit facilities by, or obtain incremental term loans of, up to $1.0 billion if existing or new lenders provide additional term or revolving commitments. The loans under the Credit Agreement have a five-year term. The obligations of the Bor- rowers under the Credit Agreement are guaranteed by the Company and its material domestic subsidiaries, and the obligations of WDI and WD International under the Credit Agreement are also guaranteed by WDT. The term loans and the revolving credit loans may be prepaid in whole or in part at any time without premium or penalty, subject to certain conditions. As of July 3, 2015, the revolving credit facility had a variable interest rate of 1.7% and a remaining outstanding balance of $255 million. The revolving credit facility is classified within current liabilities as of July 3, 2015 due to the Company’s intent to repay the borrowings in 2016. As of July 3, 2015, the term loan facility had a variable interest rate of 1.7% and a remaining outstanding balance of $2.3 billion. The Com- pany is required to make quarterly principal payments on the term loan facility totaling $156 million in fiscal 2016, $219 million in fiscal 2017, $250 million in fiscal 2018 and the remaining balance of $1.7 billion in fiscal 2019. The Credit Agreement requires the Company to comply with a leverage ratio and an interest coverage ratio calcu- lated on a consolidated basis for the Company and its subsidiaries. In addition, the Credit Agreement contains customary covenants, including covenants that limit or restrict the Company’s and its subsidiaries’ ability to incur liens, incur indebtedness, make certain restricted payments, merge or consolidate and enter into certain speculative hedging arrangements, and customary events of default. 67 WESTERN DIGITAL CORPORATION NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued) Note 4. Commitments and Contingencies Lease Commitments The Company leases certain facilities and equipment under long-term, non-cancelable operating leases. The Company’s operating leases consist of leased property and equipment that expire at various dates through 2025. Rental expense under these operating leases, including month-to-month rentals, was $60 million, $59 million and $64 million in 2015, 2014 and 2013, respectively. Future minimum lease payments under operating leases that have initial or remaining non-cancelable lease terms in excess of one year at July 3, 2015 are as follows (in millions): 2016 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2017 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2018 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2019 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2020 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Thereafter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 40 32 26 23 19 45 Total future minimum payments . . . . . . . . . . . . . . . . . . . . . . . . . . . $185 Product Warranty Liability Changes in the warranty accrual for 2015, 2014 and 2013 were as follows (in millions): Warranty accrual, beginning of period . . . . . . . Warranty liabilities assumed as a result of acquisitions . . . . . . . . . . . . . . . . . . . . . . . . Charges to operations . . . . . . . . . . . . . . . . . . Utilization . . . . . . . . . . . . . . . . . . . . . . . . . . . Changes in estimate related to pre-existing 2015 2014 2013 $ 182 $ 187 $ 260 1 187 (190) 4 170 (207) — 178 (221) warranties . . . . . . . . . . . . . . . . . . . . . . . . . 41 28 (30) Warranty accrual, end of period . . . . . . . . . . . . . $ 221 $ 182 $ 187 Accrued warranty also includes amounts classified in other liabilities in the consolidated balance sheets of $71 million at July 3, 2015 and $63 million at June 27, 2014. Long-term Purchase Agreements The Company has entered into long-term purchase agreements with various component suppliers. The commit- ments depend on specific products ordered and may be subject to minimum quality requirements and future price negotiations. The Company expects these commitments to total $117 million for 2016, $15 million for 2017, $5 million for 2018, $3 million for 2019 and no remaining commitments for 2020. Note 5. Legal Proceedings When the Company becomes aware of a claim or potential claim, the Company assesses the likelihood of any loss or exposure. The Company discloses information regarding each material claim where the likelihood of a loss con- tingency is probable or reasonably possible. If a loss contingency is probable and the amount of the loss can be reason- ably estimated, the Company records an accrual for the loss. In such cases, there may be an exposure to potential loss in excess of the amount accrued. Where a loss is not probable but is reasonably possible or where a loss in excess of the 68 WESTERN DIGITAL CORPORATION NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued) amount accrued is reasonably possible, the Company discloses an estimate of the amount of the loss or range of possi- ble losses for the claim if a reasonable estimate can be made, unless the amount of such reasonably possible losses is not material to the Company’s financial position, results of operations or cash flows. Unless otherwise stated below, for each of the matters described below, the Company has either recorded an accrual for losses that are probable and reasonably estimable or has determined that, while a loss is reasonably possible (including potential losses in excess of the amounts accrued by the Company), a reasonable estimate of the amount of loss or range of possible losses with respect to the claim or in excess of amounts already accrued by the Company can- not be made. Solely for purposes of this note, “WD” refers to Western Digital Corporation or one or more of its subsidiaries excluding HGST prior to the closing of the Company’s acquisition of HGST on March 8, 2012 (the “HGST Closing Date”). HGST refers to Hitachi Global Storage Technologies Holdings Pte. Ltd. or one or more of its subsidiaries as of the HGST Closing Date, and “the Company” refers to Western Digital Corporation and all of its subsidiaries on a consolidated basis including HGST. Intellectual Property Litigation On June 18, 2008, plaintiff Convolve, Inc. (“Convolve”) filed a complaint in the Eastern District of Texas against WD, HGST, and two other companies alleging infringement of U.S. Patent Nos. 6,314,473 and 4,916,635. The complaint sought unspecified monetary damages and injunctive relief. On October 10, 2008, Convolve amended its complaint to allege infringement of only the ‘473 patent. The ‘473 patent allegedly relates to interface technology to select between certain modes of a disk drive’s operations relating to speed and noise. A trial in the matter began on July 18, 2011 and concluded on July 26, 2011 with a verdict against WD and HGST in an amount that is not material to the Company’s financial position, results of operations or cash flows, for which the Company previously recorded an accrual. WD and HGST filed post-trial motions challenging the verdict. On January 17, 2014 and February 11, 2015, the Court denied WD’s and HGST’s post-trial motions. On March 13, 2015, WD and HGST filed Notices of Appeal with the United States District Court for the Federal Circuit (“Federal Circuit”). On April 16, 2015, Convolve filed a motion for reconsideration of the final judgment. On May 5, 2015, the Federal Circuit deacti- vated the appeal pending the Court’s decision on reconsideration. WD and HGST intend to continue to defend them- selves vigorously in this matter. On March 24, 2014, plaintiff Steven F. Reiber (“Reiber”) filed a complaint in the Eastern District of California against the Company, alleging infringement of U.S. Patent Nos. 7,124,927 and 7,389,905. On September 16, 2014, Reiber filed an amended complaint in the Eastern District of California against the Company alleging infringement of three additional patents-U.S. Patent Nos. 6,935,548, 6,651,864, and 6,354,479. Reiber alleged that WD products (including HDD heads, head gimbal assemblies, head stack assemblies and SSDs) infringed these patents based on the allegation that the manufacturing of these products involves the use of certain bonding tools (e.g., wire-bonding tips, capillary tips, and flip-chip handling tools) that have electrically “dissipative” properties, and which are used when bonding components, such as leads, wires and flip chips. On June 4, 2015, the parties reached a settlement agreement for an amount that is not material to the Company’s financial position, results of operations or cash flows. On July 17, 2015, the Court dismissed the action against the Company with prejudice. The matter is now resolved. Seagate Matter In October 2006, Seagate Technology LLC (“Seagate”) brought an action against the Company and a now former employee, alleging misappropriation of confidential information and trade secrets. In January 2012, an arbitrator issued a final award against the Company, including pre-award interest, of $630.4 million. The matter was appealed and, on October 8, 2014, the Minnesota Supreme Court upheld the arbitrator’s award. On October 14, 2014, the Company paid Seagate $773.4 million to satisfy the full amount of the final arbitration award plus interest accrued through October 2014. This amount was paid by one of the Company’s foreign subsidiaries using cash held outside of the United States. 69 WESTERN DIGITAL CORPORATION NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued) Seagate disputes the method the Company used for calculating post-award interest and contends that the Com- pany owes Seagate approximately $29 million in additional interest. The Company denies Seagate’s contention and believes it calculated interest properly in accordance with the arbitration award. On November 12, 2014, the Com- pany filed a motion with the District Court seeking an order declaring that WD has paid to Seagate all amounts due under the arbitration award, including all pre-award and post-award interest, and all costs and disbursements assessed by the Minnesota Court of Appeals and the Minnesota Supreme Court. On December 23, 2014, Seagate filed a cross- motion seeking entry of judgment in the amount of $29 million, plus daily interest from October 15, 2014 until the date any judgment is paid. Both parties’ motions were fully briefed and, on January 9, 2015, the District Court heard oral argument on both motions. On April 7, 2015, the District Court granted the Company’s motion and declared that all amounts due and owing from the Company to Seagate have been paid, and a corresponding judgment was entered on April 8, 2015. On May 6, 2015, Seagate appealed the decision and judgment to the Minnesota Court of Appeals. The matter has been fully briefed before the Minnesota Court of Appeals but a date for oral argument has not been set. The Company will continue to defend itself vigorously in this matter. Other Matters On December 22, 2011, the German Central Organization for Private Copying Rights (Zentralstelle für private Überspielungsrechte), (“ZPÜ”), an organization consisting of several copyright collecting societies, instituted arbi- tration proceedings against Western Digital’s German subsidiary (“WD Germany”) before the Copyright Arbitration Board (“CAB”) claiming copyright levies for multimedia hard drives, external hard drives and network hard drives sold or introduced into commerce in Germany by WD Germany from January 2008 through December 2010. The CAB, which was required to issue a settlement proposal within one year of the initiation of the action, failed to do so and requested the parties consent to continue the deadline. WD Germany declined to provide consent and, on Febru- ary 1, 2013, WD Germany filed a declaratory relief action against ZPÜ in the Higher Regional Court of Munich (the “Higher Court”), seeking an order from the court to determine the copyright levy issue. On May 21, 2013, ZPÜ filed a counter-claim against WD Germany with the Higher Court, seeking copyright levies for multimedia hard drives, external hard drives and network hard drives (collectively, “Covered Products”) sold or introduced into commerce from January 2008 through December 2010 based on tariffs published by ZPÜ on November 3, 2011. On May 22, 2014, oral argument on the pleadings occurred. On January 15, 2015, the Higher Court ruled in favor of ZPÜ. In its ruling, the Higher Court declared that WD Germany must pay certain levies on certain WD products which it sold in Germany between January 1, 2008 and December 31, 2010. The judgment specifies levy amounts on certain WD products sold from 2008 to 2010 and directs WD Germany to provide applicable sales data to the ZPÜ. The exact amount of the judgment has not been determined. ZPÜ and WD Germany filed appeals with the German Federal Court of Justice on February 18 and February 20, 2015. WD intends to defend itself vigorously in this matter. On December 11, 2014, ZPÜ submitted a pleading to the CAB seeking copyright levies for multimedia hard drives, external hard drives and network hard drives sold or introduced into commerce in Germany by WD Germany from January 1, 2012 to December 31, 2013. WD intends to defend itself vigorously in this matter. The Company has recorded an accrual for German copyright levies in an amount that is not material to the Company’s financial position, results of operations or cash flows. It is reasonably possible that the Company may incur losses totaling up to $95 million, including the amounts accrued. In the normal course of business, the Company is subject to other legal proceedings, lawsuits and other claims. Although the ultimate aggregate amount of probable monetary liability or financial impact with respect to these other matters is subject to many uncertainties and is therefore not predictable with assurance, management believes that any monetary liability or financial impact to the Company from these other matters, individually and in the aggregate, would not be material to the Company’s financial condition, results of operations or cash flows. However, there can be no assurance with respect to such result, and monetary liability or financial impact to the Company from these other matters could differ materially from those projected. 70 WESTERN DIGITAL CORPORATION NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued) Note 6. Business Segment, Geographic Information and Major Customers Segment Information The Company is organized into two operating segments that have been aggregated into one reportable operating segment, the hard drive business. Geographic Information The Company’s operations outside the United States include manufacturing facilities in China, Japan, Malaysia, the Philippines and Thailand as well as sales offices throughout the Americas, Asia Pacific, Europe and the Middle East. The following table summarizes the Company’s operations by geographic area for the three years ended July 3, 2015 (in millions): 2015 2014 2013 Net revenue(1): United States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . China . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Asia . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Europe, Middle East and Africa . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 3,054 2,726 4,552 3,169 1,071 $ 3,013 3,499 4,756 3,117 745 $ 3,403 4,145 4,129 3,056 618 Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $14,572 $15,130 $15,351 Long-lived assets: United States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . China . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Asia . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Europe, Middle East and Africa . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 2,465 218 3,655 326 $ 2,415 279 4,002 83 $ 1,517 348 4,434 139 Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 6,664 $ 6,779 $ 6,438 (1) Net revenue is attributed to geographic regions based on the ship to location of the customer. Major Customers For 2015 and 2014, sales to Hewlett Packard Company accounted for 11% of the Company’s net revenue. For 2013, no single customer accounted for 10% or more of the Company’s net revenue. For 2015, 2014, and 2013, sales to the Company’s top ten customers accounted for 44% of the Company’s net revenue. Note 7. Western Digital Corporation 401(k) Plan The Company has adopted the Western Digital Corporation 401(k) Plan (the “Plan”). The Plan covers sub- stantially all domestic employees, subject to certain eligibility requirements. The Company makes a basic matching contribution on behalf of each participating eligible employee equal to fifty percent (50%) of the eligible participant’s pre-tax contributions for the contribution cycle not to exceed 5% of the eligible participant’s compensation; provided, however, that each eligible participant shall receive a minimum annual basic matching contribution equal to fifty percent (50%) of the first $4,000 of pre-tax contributions for any calendar year. The Plan was amended effective Jan- uary 1, 2013, to provide for a year-end true-up matching contribution such that participants who save at least 5% of their eligible compensation for the year receive a minimum annual matching contribution equal to 2.5% of eligible compensation (up to Internal Revenue Service (“IRS”) limitations). Company contributions vest over a 5-year period of employment. For 2015, 2014, and 2013, the Company made Plan contributions of $22 million, $21 million and $19 million, respectively. 71 WESTERN DIGITAL CORPORATION NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued) Note 8. Shareholders’ Equity Stock Incentive Plans In addition to awards assumed in connection with acquisitions, the Company maintains the amended and restated 2004 Performance Incentive Plan. The types of awards that may be granted under the 2004 Performance Incentive Plan include stock options, SARs, RSUs, stock bonuses and other forms of awards granted or denominated in the Company’s common stock or units of the Company’s common stock, as well as cash bonus awards. Persons eligible to receive awards under the 2004 Performance Incentive Plan include officers and employees of the Company or any of its subsidiaries, directors of the Company and certain consultants and advisors to the Company or any of its subsidiaries. The vesting of awards under the 2004 Performance Incentive Plan is determined at the date of grant. Each award expires on a date determined at the date of grant; however, the maximum term of options and SARs under the 2004 Performance Incentive Plan is ten years after the grant date of the award. RSUs granted under the 2004 Performance Incentive Plan typically vest over periods ranging from one to four years from the date of grant. To the extent available, the Company issues shares out of treasury stock upon the vesting of awards or the exercise of employee stock options and ESPP. As of July 3, 2015, the maximum number of shares of the Company’s common stock that was authorized for award grants under the 2004 Performance Incentive Plan was 48.8 million shares. Shares issued in respect of stock options and SARs granted under the 2004 Performance Incentive Plan count against the plan’s share limit on a one- for-one basis, whereas shares issued in respect of any other type of award granted through November 7, 2012 under the plan count against the plan’s share limit as 1.35 shares for every one share actually issued in connection with such award. Shares issued in respect of awards, other than options and SARs, granted on or after November 8, 2012 count against the plan’s share limit as 1.72 shares for every one share actually issued in connection with such award. The 2004 Performance Incentive Plan was extended in 2013 and will terminate on August 6, 2022 unless terminated ear- lier by the Company’s Board of Directors. Employee Stock Purchase Plan The Company maintains an ESPP. Under the ESPP, eligible employees may authorize payroll deductions of up to 10% of their eligible compensation during prescribed offering periods to purchase shares of the Company’s com- mon stock at 95% of the fair market value of common stock on either the first day of that offering period or on the applicable exercise date, whichever is less. A participant may participate in only one offering period at a time, and a new offering period generally begins each June 1st and December 1st. Each offering period is generally 24 months and consists of four exercise dates (each, generally six months following the start of the offering period or the preceding exercise date, as the case may be). If the fair market value of the Company’s common stock is less on a given exercise date than on the date of grant, employee participation in that offering period ends and participants are automatically re-enrolled in the next new offering period. Stock-based Compensation Expense The Company recognized in expense $74 million, $85 million and $88 million for stock-based compensation related to the vesting of options issued by the Company under the 2004 Performance Incentive Plan and the ESPP in 2015, 2014 and 2013, respectively. The tax benefit realized as a result of the aforementioned stock-based compensa- tion expense was $19 million, $22 million and $25 million in 2015, 2014 and 2013, respectively. As of July 3, 2015, total compensation cost related to unvested stock options granted under the 2004 Performance Incentive Plan and ESPP rights issued to employees but not yet recognized was $96 million and will be amortized on a straight-line basis over a weighted average service period of approximately 2.0 years. For purposes of this footnote, references to RSUs include performance stock unit awards (“PSUs”). The effect of the PSU activity was immaterial to the consolidated financial statements in 2015, 2014 and 2013. The Company recognized in expense $88 million, $71 million and $52 million related to RSUs granted under the 2004 Performance 72 WESTERN DIGITAL CORPORATION NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued) Incentive Plan that vested during 2015, 2014 and 2013, respectively. The tax benefit realized as a result of the afore- mentioned expense was $24 million, $18 million and $14 million in 2015, 2014 and 2013, respectively. As of July 3, 2015, the aggregate unamortized fair value of all unvested RSUs granted under the 2004 Performance Incentive Plan was $119 million, which will be recognized on a straight-line basis over a weighted average vesting period of approx- imately 1.3 years. Stock Option Activity The following table summarizes stock option activity under the 2004 Performance Incentive Plan over the last three fiscal years (in millions, except per share amounts and remaining contractual lives): Number of Shares Weighted Average Exercise Price Per Share Weighted Average Remaining Contractual Life (in years) Aggregate Intrinsic Value Options outstanding at June 29, 2012 . . . Granted . . . . . . . . . . . . . . . . . . . . . . . . . Exercised . . . . . . . . . . . . . . . . . . . . . . . . . Forfeited or expired . . . . . . . . . . . . . . . . . Options outstanding at June 28, 2013 . . . Granted . . . . . . . . . . . . . . . . . . . . . . . . . Assumed . . . . . . . . . . . . . . . . . . . . . . . . . Exercised . . . . . . . . . . . . . . . . . . . . . . . . . Forfeited or expired . . . . . . . . . . . . . . . . . Options outstanding at June 27, 2014 . . . Granted . . . . . . . . . . . . . . . . . . . . . . . . . Assumed . . . . . . . . . . . . . . . . . . . . . . . . . Exercised . . . . . . . . . . . . . . . . . . . . . . . . . Forfeited or expired . . . . . . . . . . . . . . . . . Options outstanding at July 3, 2015 . . . . Exercisable at July 3, 2015 . . . . . . . . . . . . Vested and expected to vest after July 3, 2015 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15.8 3.4 (6.8) (0.5) 11.9 1.6 1.7 (4.5) (0.6) 10.1 1.2 0.1 (4.1) (0.5) 6.8 3.4 6.7 $21.89 43.51 18.53 32.72 $29.47 68.96 38.18 25.22 67.23 $37.03 94.10 3.49 31.90 56.41 $50.00 $34.81 $49.45 4.3 3.2 4.3 $242 $161 $241 If an option has an exercise price that is less than the quoted price of the Company’s common stock at the partic- ular time, the aggregate intrinsic value of that option at that time is calculated based on the difference between the exercise price of the underlying options and the quoted price of the Company’s common stock at that time. As of July 3, 2015, the Company had options outstanding to purchase an aggregate of 5.5 million shares with an exercise price below the quoted price of the Company’s stock on that date resulting in an aggregate intrinsic value of $242 million at that date. During 2015, 2014 and 2013, the aggregate intrinsic value of options exercised under the 2004 Performance Incentive Plan was $283 million, $247 million and $211 million, respectively, determined as of the date of exercise. 73 WESTERN DIGITAL CORPORATION NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued) The following table summarizes information about options outstanding and exercisable under the 2004 Perform- ance Incentive Plan as of July 3, 2015 (in millions, except exercise price): Options Outstanding Options Exercisable Weighted Average Remaining Contractual Life (in years) Number of Shares Weighted Average Exercise Price Number of Shares Weighted Average Exercise Price 1.1 1.3 0.5 1.4 1.1 1.4 6.8 4.7 2.5 2.6 4.0 5.0 6.0 4.3 $ 11.03 27.51 36.56 43.11 66.27 102.96 $ 50.00 0.7 1.2 0.4 0.7 0.3 0.1 3.4 $ 10.57 27.35 35.57 43.11 65.87 148.95 34.81 Range of Exercise Prices $ 2.99 – $16.85 . . . . . . . . . . . . . $ 17.52 – $29.60 . . . . . . . . . . . . . $ 30.06 – $41.75 . . . . . . . . . . . . . $ 43.11 – $43.11 . . . . . . . . . . . . . $ 48.01 – $68.49 . . . . . . . . . . . . . $ 69.29 – $388.77 . . . . . . . . . . . . RSU Activity The following table summarizes RSU activity (in millions, except weighted average grant date fair value): Number of Shares Weighted Average Grant Date Fair Value RSUs outstanding at June 29, 2012 . . . . . . . . . . . . . . Granted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Vested . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Forfeited or expired . . . . . . . . . . . . . . . . . . . . . . . . . . RSUs outstanding at June 28, 2013 . . . . . . . . . . . . . . Granted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Assumed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Vested . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Forfeited or expired . . . . . . . . . . . . . . . . . . . . . . . . . . RSUs outstanding at June 27, 2014 . . . . . . . . . . . . . . Granted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Vested . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Forfeited or expired . . . . . . . . . . . . . . . . . . . . . . . . . . RSUs outstanding at July 3, 2015 . . . . . . . . . . . . . . . . Expected to vest after July 3, 2015 . . . . . . . . . . . . . . . 3.7 1.7 (1.4) (0.4) 3.6 1.4 0.2 (1.3) (0.2) 3.7 1.3 (1.7) (0.3) 3.0 2.9 $ 33.19 43.14 37.89 35.46 $ 35.82 69.08 62.73 33.61 47.62 $ 49.77 100.13 42.24 67.31 $ 73.80 $ 73.28 The fair value of each RSU is the market price of the Company’s stock on the date of grant. RSUs are generally payable in an equal number of shares of the Company’s common stock at the time of the vesting of the units. The aggregate value of RSUs that became fully-vested during 2015, 2014 and 2013 was $170 million, $89 million and $71 million, respectively, determined as of the vest date. The fair value of the shares underlying the RSU awards at the date of grant or assumption was $125 million, $95 million and $74 million in 2015, 2014 and 2013, respectively. These amounts are being recognized to expense over the corresponding vesting periods. 74 WESTERN DIGITAL CORPORATION NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued) SARs Activity The Company recognized a benefit of $3 million in 2015, and $36 million and $46 million in expense related to adjustments to market value as well as the vesting of SARs in 2014 and 2013, respectively. No tax benefit was real- ized in 2015 as a result of the aforementioned SARs expense, as compared to tax benefits realized of $7 million and $4 million in 2014 and 2013, respectively. The SARs will be settled in cash upon exercise. The Company had a total liability of $41 million related to SARs included in accrued liabilities as of July 3, 2015 in the consolidated balance sheet. The share-based compensation liability for SARs is recognized for the portion of fair value for which service has been rendered at the reporting date. The share-based liability is remeasured at each reporting date, using a binomial option-pricing model, through the requisite service period. As of July 3, 2015, 0.6 million SARs were outstanding with a weighted average exercise price of $7.92. There were no SARs granted in 2015, 2014 and 2013, and all other SARs activity was immaterial to the consolidated financial statements for the year ended July 3, 2015. Fair Value Disclosure — Binomial Model The fair value of stock options granted is estimated using a binomial option-pricing model. The binomial model requires the input of highly subjective assumptions. The Company uses historical data to estimate exercise, employee termination, and expected stock price volatility within the binomial model. The risk-free rate for periods within the contractual life of the option is based on the U.S. Treasury yield curve in effect at the time of grant. The fair value of stock options granted during the three years ended July 3, 2015 was estimated using the following weighted average assumptions: Suboptimal exercise factor . . . . . . . . . . . . . . . . 2015 2.52 2014 2.07 2013 1.90 Range of risk-free interest rates . . . . . . . . . . . . 0.11% to 2.16% 0.10% to 2.44% 0.14% to 1.96% Range of expected stock price volatility . . . . . . 0.23 to 0.47 0.27 to 0.50 0.36 to 0.53 Weighted average expected volatility . . . . . . . Post-vesting termination rate . . . . . . . . . . . . . Dividend yield . . . . . . . . . . . . . . . . . . . . . . . . Fair value . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.36 1.25% 1.69% $32.19 0.43 3.10% 1.58% $24.14 0.49 2.16% 2.53% $15.75 The weighted average expected term of the Company’s stock options granted during 2015, 2014 and 2013 was 5.8 years, 5.0 years and 4.0 years, respectively. Fair Value Disclosure — Black-Scholes-Merton Model The fair value of ESPP purchase rights issued is estimated at the date of grant of the purchase rights using the Black-Scholes-Merton option-pricing model. The Black-Scholes-Merton option-pricing model requires the input of highly subjective assumptions such as the expected stock price volatility and the expected period until options are exercised. Purchase rights under the ESPP are granted on either June 1st or December 1st of each year. 75 WESTERN DIGITAL CORPORATION NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued) The fair values of all ESPP purchase rights granted on or prior to July 3, 2015 have been estimated at the date of grant using a Black-Scholes-Merton option-pricing model with the following weighted average assumptions: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Option life (in years) Risk-free interest rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Stock price volatility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dividend yield . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fair value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Stock Repurchase Program 2015 1.26 0.45% 0.26 2.34% ESPP 2014 1.24 0.26% 0.31 1.64% 2013 1.24 0.23% 0.42 1.61% $14.50 $14.62 $10.36 The Company’s Board of Directors previously authorized $3.0 billion for the repurchase of the Company’s common stock. On February 3, 2015, the Company’s Board of Directors authorized an additional $2.0 billion for the repurchase of its common stock and approved the extension of its stock repurchase program to February 3, 2020. The Company repurchased 9.6 million shares for a total cost of $970 million during 2015. The remaining amount avail- able to be purchased under the Company’s stock repurchase program as of July 3, 2015 was $2.2 billion. Subsequent to July 3, 2015 and through August 13, 2015, the Company repurchased an additional 0.7 million shares of its common stock for a total cost of $60 million. The Company may continue to repurchase its stock as it deems appro- priate. Repurchases under the stock repurchase program may be made in the open market or in privately negotiated transactions and may be made under a Rule 10b5-1 plan. The Company expects stock repurchases to be funded principally by operating cash flows and borrowings under the Credit Agreement. Stock Reserved for Issuance The following table summarizes all shares of common stock reserved for issuance at July 3, 2015 (in millions): Maximum shares issuable in connection with: Outstanding awards and shares available for award grants . . . . . . . . . . . . . . . . . . . . . . . . . . . ESPP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Number of Shares 16.6 4.8 21.4 Dividends to Shareholders On September 13, 2012, the Company announced that its Board of Directors had authorized the adoption of a quarterly cash dividend policy. Under the cash dividend policy, holders of the Company’s common stock receive divi- dends when and as declared by the Company’s Board of Directors. In 2015, the Company declared aggregate cash dividends of $1.80 per share of the Company’s common stock, totaling $418 million, of which $302 million was paid during 2015. The Company also paid $94 million of dividends in 2015 related to dividends accrued in 2014. On August 4, 2015, the Company declared a cash dividend of $0.50 per share of its common stock to shareholders of record as of October 2, 2015, which will be paid on October 15, 2015. The Company may modify, suspend or cancel its cash dividend policy in any manner and at any time. 76 WESTERN DIGITAL CORPORATION NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued) Note 9. Income Taxes Pre-tax Income The domestic and foreign components of income before income taxes were as follows for the three years ended July 3, 2015 (in millions): 2015 2014 2013 Foreign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Domestic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $1,501 76 $1,664 88 $ 870 352 Income before income taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $1,577 $1,752 $1,222 Income Tax Provision The components of the provision for income taxes were as follows for the three years ended July 3, 2015 (in millions): Current: 2015 2014 2013 Foreign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Domestic-federal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Domestic-state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 54 43 (13) $ 47 98 3 $ 57 149 1 Deferred: Foreign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Domestic-federal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Domestic-state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 11 5 (3) (14) 4 (7) (46) 88 Income tax provision . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $112 $135 $242 The Company’s income tax provision for 2015 and 2013 reflects tax benefits of $27 million and $37 million, respectively, as a result of the retroactive extensions of the U.S. Federal research and development tax credit that were signed into law on December 19, 2014 and January 2, 2013. In addition, the Company recorded an $88 million charge to reduce its previously recognized California deferred tax assets in 2013 as a result of the enactment of Cal- ifornia Proposition 39. Remaining net undistributed earnings from foreign subsidiaries at July 3, 2015 on which no U.S. tax has been provided amounted to $9.4 billion. The net undistributed earnings are intended to finance local operating require- ments and capital investments. Accordingly, an additional U.S. tax provision has not been made on these earnings. The tax liability for these earnings would be $3.1 billion if the Company repatriated the $9.4 billion in undistributed earnings from the foreign subsidiaries. 77 WESTERN DIGITAL CORPORATION NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued) Deferred Taxes Temporary differences and carryforwards, which give rise to a significant portion of deferred tax assets and liabilities as of July 3, 2015 and June 27, 2014 were as follows (in millions): 2015 2014 Deferred tax assets: Sales related reserves and accrued expenses not currently deductible . . . . . . . . . . . . . . . Accrued compensation and benefits not currently deductible . . . . . . . . . . . . . . . . . . . . Domestic net operating loss carryforward . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Business credit carryforward . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Long-lived assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 50 138 137 167 49 65 $ 38 190 130 155 58 65 Total deferred tax assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 606 636 Deferred tax liabilities: Long-lived assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Total deferred tax liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Valuation allowances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (126) (10) (136) (166) (152) (11) (163) (128) Deferred tax assets, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 304 $ 345 Deferred tax assets: Current portion (included in other current assets) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Non-current portion (included in other non-current assets) $ 167 273 $ 184 324 Total deferred tax assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 440 508 Deferred tax liabilities: Current portion (included in other current assets) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Non-current portion (included in other non-current assets) Total deferred tax liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (1) (135) (136) (2) (161) (163) Deferred tax assets, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 304 $ 345 The net deferred tax asset valuation allowance increased by $38 million in 2015 and decreased by $5 million in 2014. The valuation allowance is based on the Company’s assessment that it is more likely than not that certain deferred tax assets will not be realized in the foreseeable future. In addition to the deferred tax assets presented above, the Company had additional NOL benefits related to stock-based compensation deductions of $90 million and $11 million at July 3, 2015 and June 27, 2014, respectively. During 2015, the Company generated an additional $97 million of benefits related to stock-based compensation deductions, of which $19 million were utilized in 2015 and recorded to shareholders’ equity. 78 WESTERN DIGITAL CORPORATION NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued) Effective Tax Rate Reconciliation of the U.S. Federal statutory rate to the Company’s effective tax rate is as follows for the three years ended July 3, 2015: 2015 2014 2013 35% 35% 35% U.S. Federal statutory rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (28) (29) Tax rate differential on international income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Tax effect of U.S. permanent differences 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . — State income tax, net of federal tax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . — (1) (2) Income tax credits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . — 2 Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (19) — 8 (4) — Effective tax rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7% 8% 20% Tax Holidays and Carryforwards A substantial portion of the Company’s manufacturing operations in Malaysia, the Philippines, Singapore and Thailand operate under various tax holidays and tax incentive programs which will expire in whole or in part at vari- ous dates from 2016 through 2025. Certain of the holidays may be extended if specific conditions are met. The net impact of these tax holidays and tax incentives was to increase the Company’s net earnings by $641 million ($2.70 per diluted share), $905 million ($3.74 per diluted share), and $899 million ($3.65 per diluted share) in 2015, 2014 and 2013, respectively. As of July 3, 2015, the Company had federal and state NOL carryforwards of $515 million and $422 million, respectively. In addition, as of July 3, 2015, the Company had various federal and state tax credit carryforwards of $417 million combined. The NOL carryforwards available to offset future federal and state taxable income expire at various dates from 2021 to 2035 and 2020 to 2035, respectively. Approximately $100 million of the credit carryfor- wards available to offset future taxable income expire at various dates from 2017 to 2035. The remaining amount is available indefinitely. NOLs and credits relating to Komag, Incorporated (“Komag”), HGST, sTec, Virident and Amplidata are subject to limitations under Sections 382 and 383 of the Internal Revenue Code. The Company does not expect these limitations to result in a reduction in the total amount of Komag, sTec, Virident or Amplidata’s NOLs and credits ultimately realized. The Company expects the total amount of HGST’s NOLs and credits ultimately realized will be reduced by $39 million and $25 million, respectively. Uncertain Tax Positions With the exception of certain unrecognized tax benefits that are directly associated with the tax position taken, unrecognized tax benefits are presented gross in the Company’s balance sheet. Interest and penalties related to unrecognized tax benefits are recognized in liabilities recorded for uncertain tax positions and are recorded in the provision for income taxes. As of July 3, 2015, such interest and penalties were not material. As of July 3, 2015, the Company had $350 million of unrecognized tax benefits. 79 WESTERN DIGITAL CORPORATION NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued) The following is a tabular reconciliation of the total amounts of unrecognized tax benefits for the years ended July 3, 2015, June 27, 2014 and June 28, 2013 (in millions): 2015 2014 2013 Unrecognized tax benefit at beginning of period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Gross increases related to current year tax positions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Gross increases related to prior year tax positions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Gross decreases related to prior year tax positions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Settlements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Lapse of statute of limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Acquisitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $300 44 6 — — (3) 3 $240 27 26 (5) — — 12 $280 29 10 (8) (64) (7) — Unrecognized tax benefit at end of period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $350 $300 $240 The Company’s unrecognized tax benefits are primarily included within long-term liabilities in the Company’s consolidated balance sheets. The entire balance of unrecognized tax benefits at July 3, 2015, June 27, 2014 and June 28, 2013, if recognized, would affect the effective tax rate, subject to certain future valuation allowance reversals. The Company files U.S. Federal, U.S. state, and foreign tax returns. For both federal and state tax returns, with few exceptions, the Company is subject to examination for fiscal years 2008 through 2014. In foreign jurisdictions, with few exceptions, the Company is subject to examination for all years subsequent to fiscal 2008. The Company is no longer subject to examination by the IRS for periods prior to 2008, although carry forwards generated prior to those periods may still be adjusted upon examination by the IRS or state taxing authority if they either have been or will be used in a subsequent period. The IRS previously completed its field examination of the Company’s federal income tax returns for fiscal years 2006 and 2007, and the Company and the IRS reached agreement with respect to all matters except on the proposed adjustments to income before income taxes relating to intercompany payable balances. The proposed adjustments relating to intercompany payable balances for fiscal years 2006 and 2007 are addressed in conjunction with the IRS’s examination of the Company’s fiscal years 2008 and 2009, which commenced in January 2012. The Company received a Notice of Proposed Adjustment (“NOPA”) from the IRS for fiscal year 2009 relating to intercompany payable balances and two NOPAs from the IRS for fiscal years 2008 and 2009 relating to transfer pricing with the Company’s foreign subsidiaries. The NOPAs relating to intercompany payable balances and transfer pricing with the Company’s foreign subsidiaries propose to increase the Company’s U.S. taxable income which would result in additional federal tax expense of approximately $72 million and $723 million, respectively, subject to interest. The Company disagrees with the proposed adjustments, believes that the tax positions are properly supported and will vigorously contest the position taken by the IRS. In January 2012, the IRS commenced an examination of the 2007 fiscal period ended Sep- tember 5, 2007 of Komag, which the Company acquired on September 5, 2007. The IRS examined calendar years 2010 and 2011 of HGST, which was acquired by the Company on March 8, 2012, and completed the examination with no material adjustments. The Company believes that adequate provision has been made for any adjustments that may result from tax examinations. However, the outcome of tax examinations cannot be predicted with certainty. If any issues addressed in the Company’s tax examinations are resolved in a manner not consistent with management’s expectations, the Com- pany could be required to adjust its provision for income taxes in the period such resolution occurs. As of July 3, 2015, it is not possible to estimate the amount of change, if any, in the unrecognized tax benefits that is reasonably possible within the next twelve months. Any significant change in the amount of the Company’s liability for unrecognized tax benefits would most likely result from additional information or settlements relating to the examination of the Company’s tax returns. 80 WESTERN DIGITAL CORPORATION NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued) Note 10. Fair Value Measurements Financial assets and liabilities that are remeasured and reported at fair value at each reporting period are classified and disclosed in one of the following three levels: Level 1. Quoted prices in active markets for identical assets or liabilities. Level 2. Inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Level 3. assets or liabilities. Inputs that are unobservable for the asset or liability and that are significant to the fair value of the The following table presents information about the Company’s financial assets and liabilities that are measured at fair value on a recurring basis as of July 3, 2015, and indicates the fair value hierarchy of the valuation techniques uti- lized to determine such value (in millions): Fair Value Measurements at Reporting Date Using Level 2 Level 1 Level 3 Total Assets: Cash equivalents Money market funds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $135 $ — $— $135 Total cash equivalents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135 — Short-term investments: U.S. Treasury securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . U.S. Government agency securities . . . . . . . . . . . . . . . . . . . . . . . . . Commercial paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Certificates of deposit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Total short-term investments . . . . . . . . . . . . . . . . . . . . . . . . . . . Long-term investments: U.S. Treasury securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . U.S. Government agency securities . . . . . . . . . . . . . . . . . . . . . . . . . Total long-term investments . . . . . . . . . . . . . . . . . . . . . . . . . . . Foreign exchange contracts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . — — — — — — — — — 50 4 109 99 262 237 91 328 — — — — — — — — — — — 135 50 4 109 99 262 237 91 328 — Total assets at fair value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $135 $590 $— $725 Liabilities: Foreign exchange contracts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ — $ 31 $— $ 31 Total liabilities at fair value . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ — $ 31 $— $ 31 81 WESTERN DIGITAL CORPORATION NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued) The following table presents information about the Company’s financial assets and liabilities that are measured at fair value on a recurring basis as of June 27, 2014, and indicates the fair value hierarchy of the valuation techniques utilized to determine such value (in millions): Fair Value Measurements at Reporting Date Using Level 2 Level 1 Level 3 Total Assets: Cash equivalents Money market funds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bank acceptances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $756 — Total cash equivalents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 756 Short-term investments: U.S. Government agency securities . . . . . . . . . . . . . . . . . . . . . . . Commercial paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Certificates of deposit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Total short-term investments . . . . . . . . . . . . . . . . . . . . . . . . . Long-term investments: U.S. Treasury securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . U.S. Government agency securities . . . . . . . . . . . . . . . . . . . . . . . Total long-term investments . . . . . . . . . . . . . . . . . . . . . . . . . . Foreign exchange contracts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . — — — — — — — — $ — 1 1 53 165 66 284 180 35 215 7 $— $ 756 1 — — — — — — — — — — 757 53 165 66 284 180 35 215 7 Total assets at fair value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $756 $507 $— $1,263 Liabilities: Foreign exchange contracts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ — $ Total liabilities at fair value . . . . . . . . . . . . . . . . . . . . . . . . . . . $ — $ 2 2 $— $ $— $ 2 2 Money Market Funds. The Company’s money market funds are funds that invest in U.S. Treasury and U.S. Government Agency securities. Money market funds are valued based on quoted market prices. Certificates of Deposit. The Company’s certificates of deposit are investments which are held in custody by a third party. Certificates of deposit are valued using fixed interest rates. Commercial Paper. The Company’s commercial paper securities are investments issued by corporations which are held in custody by a third party. Commercial paper securities are valued using a market approach which is based on observable inputs including market interest rates from multiple pricing sources. U.S. Government Agency Securities. The Company’s U.S. Government agency securities are investments in fixed income securities sponsored by the U.S. Government and are held in custody by a third party. U.S. Government agency securities are valued using a market approach which is based on observable inputs including market interest rates from multiple pricing sources. U.S. Treasury Securities. The Company’s U.S. Treasury securities are direct obligations of the U.S. federal govern- ment and are held in custody by a third party. U.S. Treasury securities are valued using a market approach which is based on observable inputs including market interest rates from multiple pricing sources. 82 WESTERN DIGITAL CORPORATION NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued) Bank Acceptances. The Company’s bank acceptances are held in custody by a third party. Bank acceptances are valued using a market approach which is based on observable inputs including market interest rates from multiple pricing sources. Foreign Exchange Contracts. The Company’s foreign exchange contracts are short-term contracts to hedge the Company’s foreign currency risk. Foreign exchange contracts are classified within other current assets and liabilities in the consolidated balance sheets. For contracts that have a right of offset by its individual counterparties under master netting arrangements, the Company presents its foreign exchange contracts on a net basis by counterparty in the con- solidated balance sheets. Foreign exchange contracts are valued using an income approach that is based on a present value of future cash flows model. The market-based observable inputs for the model include forward rates and credit default swap rates. For more information on the Company’s foreign exchange contracts, see Note 12 below. In 2015 and 2014, there were no transfers between levels. In 2014 the Company sold its auction rate securities, which were Level 3 financial assets measured on a recurring basis, for total proceeds of $17 million and recorded a gain of $3 million within interest and other income in the consolidated statements of income. Note 11. Investments The following table summarizes, by major type, the fair value and cost basis of the Company’s investments classi- fied as available-for-sale as of July 3, 2015 (in millions): Cost Basis Unrealized Gains (Losses) Fair Value Available-for-sale securities: U.S. Treasury securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . U.S. Government agency securities . . . . . . . . . . . . . . . . . . . . Commercial paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Certificates of deposit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $287 95 109 99 $590 $— — — — $— $287 95 109 99 $590 The following table summarizes, by major type, the fair value and cost basis of the Company’s investments classi- fied as available-for-sale as of June 27, 2014 (in millions): Cost Basis Unrealized Gains (Losses) Fair Value Available-for-sale securities: U.S. Treasury securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . U.S. Government agency securities . . . . . . . . . . . . . . . . . . . . Commercial paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Certificates of deposit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $180 88 165 66 $499 $— — — — $— $180 88 165 66 $499 The fair value of the Company’s investments classified as available-for-sale securities at July 3, 2015, by remain- ing contractual maturity were as follows (in millions): . . . . . . . . . . . . . . . . . . . . . . . . . Due in less than one year (short-term investments) Due in one to five years (included in other non-current assets) . . . . . . . . . . . . . . . . . Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cost Basis Fair Value $262 328 $590 $262 328 $590 83 WESTERN DIGITAL CORPORATION NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued) The Company determined no available-for-sale securities were other-than-temporarily impaired in 2015 or 2014. Note 12. Foreign Exchange Contracts As of July 3, 2015, the net amount of unrealized losses with respect to the Company’s foreign exchange contracts that is expected to be reclassified into earnings within the next 12 months was $26 million. In addition, as of July 3, 2015, the Company did not have any foreign exchange contracts with credit-risk-related contingent features. The Company opened $4.6 billion and $4.5 billion, and closed $4.8 billion and $4.9 billion, in foreign exchange contracts for the years ended July 3, 2015 and June 27, 2014, respectively. The fair value and balance sheet location of such contracts were as follows (in millions): Asset Derivatives Liability Derivatives Derivatives Designated as Hedging Instruments Foreign exchange contracts . . . . . . . . . . . . . . . . . Other current Balance Sheet Location Fair Value assets $— Balance Sheet Location Other current assets Fair Value $7 Balance Sheet Location Accrued expenses Fair Value $31 Balance Sheet Location Accrued expenses Fair Value $2 2015 2014 2015 2014 The following table presents the gross amounts of the Company’s derivative instruments, amounts offset due to master netting arrangements with the Company’s various counterparties, and the net amounts recognized in the con- solidated balance sheet as of July 3, 2015 (in millions): Derivatives Designated as Hedging Instruments Foreign exchange contracts Gross Amounts of Recognized Assets (Liabilities) Gross Amounts Offset in the Balance Sheet Gross Amounts Not Offset in the Balance Sheet Net Amounts of Assets (Liabilities) Presented in the Balance Sheet Cash Collateral Received or Pledged Net Amount Financial Instruments Financial liabilities . . . . . . . . . . . . . . . Total derivative instruments . . . . . . (31) $(31) — $— $(31) $(31) — $— — $— (31) $(31) The following table presents the gross amounts of the Company’s derivative instruments, amounts offset due to master netting arrangements with the Company’s various counterparties, and the net amounts recognized in the con- solidated balance sheet as of June 27, 2014 (in millions): Gross Amounts of Recognized Assets (Liabilities) Gross Amounts Offset in the Balance Sheet Net Amounts of Assets (Liabilities) Presented in the Balance Sheet Financial Instruments Cash Collateral Received or Pledged Net Amount Gross Amounts Not Offset in the Balance Sheet Derivatives Designated as Hedging Instruments Foreign exchange contracts Financial assets Financial liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . Total derivative instruments . . . $ 9 (4) $ 5 $ (2) 2 $— $ 7 (2) $ 5 $— — $— $— — $— $ 7 (2) $ 5 84 WESTERN DIGITAL CORPORATION NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued) The impact on the consolidated financial statements was as follows (in millions): Derivatives in Cash Flow Hedging Relationships Foreign exchange contracts . . . . . . . . . . . . . .$(74) Amount of Gain (Loss) Recognized in Accumulated Other Comprehensive Income on Derivatives Location of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income into Income 2015 2014 $13 Cost of revenue Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income into Income 2015 $(44) 2014 $(38) The total net realized transaction and foreign exchange contract currency gains and losses were not material to the consolidated financial statements during 2015, 2014 and 2013. See Notes 1 and 10 above for additional dis- closures related to the Company’s foreign exchange contracts. Note 13. Goodwill and Other Intangible Assets The following table summarizes the activity related to the carrying amount of goodwill: Balance as of June 28, 2013 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Goodwill recorded in connection with acquisitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Balance as of June 27, 2014 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Goodwill recorded in connection with acquisitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Balance as of July 3, 2015 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $1,954 605 $2,559 207 $2,766 Carrying Amount Intangible assets as of July 3, 2015 were as follows: Existing technology . . . . . . . . . . . . . . . Customer relationships . . . . . . . . . . . . . Other . . . . . . . . . . . . . . . . . . . . . . . . . . Leasehold interests . . . . . . . . . . . . . . . . In-process research and development . . Weighted Average Amortization Period (in years) 5 4 3 31 — Gross Carrying Amount (in millions) $ 638 152 74 39 105 Accumulated Amortization (in millions) $471 126 68 11 — Net Carrying Amount (in millions) $167 26 6 28 105 Total . . . . . . . . . . . . . . . . . . . . . . . . . . $1,008 $676 $332 Intangible assets as of June 27, 2014 were as follows: Existing technology . . . . . . . . . . . . . . . Customer relationships . . . . . . . . . . . . . Other . . . . . . . . . . . . . . . . . . . . . . . . . . Leasehold interests . . . . . . . . . . . . . . . . In-process research and development . . Weighted Average Amortization Period (in years) 5 4 3 32 — Gross Carrying Amount (in millions) $566 148 73 43 154 Accumulated Amortization (in millions) $368 97 55 10 — Net Carrying Amount (in millions) $198 51 18 33 154 Total . . . . . . . . . . . . . . . . . . . . . . . . . . $984 $530 $454 85 WESTERN DIGITAL CORPORATION NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued) Other intangible assets are amortized on a straight-line basis over the respective estimated useful lives of the assets. Amortization expense for intangible assets was $171 million, $213 million and $209 million for 2015, 2014 and 2013, respectively. During 2015 and 2014, the Company recorded $39 million and $53 million of impairment charges related to intangible assets, respectively, which are recorded in the employee termination, asset impairment and other charges within the Company’s consolidated statements of income. The impairment charges primarily relate to acquired in-process research and development projects that were abandoned and resulted in full impairment in both 2015 and 2014. As of July 3, 2015, estimated future amortization expense for intangible assets currently subject to amortization is $95 million for 2016, $64 million for 2017, $20 million for 2018, $11 million for 2019 and $10 million for 2020. Note 14. Pensions and Other Post-retirement Benefit Plans The Company has pension and other post-retirement benefit plans in various countries. The Company’s principal plans are in Japan. All pension and other post-retirement benefit plans outside of the Company’s Japanese plans are immaterial to the Company’s consolidated financial statements. Obligations and Funded Status The changes in the benefit obligations and plan assets for the Japanese defined benefit pension plans were as fol- lows for 2015, 2014 and 2013 (in millions): 2015 2014 2013 Change in benefit obligation: Benefit obligation at beginning of period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Service cost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Interest cost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Actuarial gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Benefits paid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Other(1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Non-U.S. currency movement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $255 9 4 16 (8) — (45) $234 10 4 13 (7) 8 (7) $286 11 5 (4) (6) — (58) Benefit obligation at end of period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231 255 234 Change in plan assets: Fair value of plan assets at beginning of period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Actual return on plan assets Employer contributions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Benefits paid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Other(1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Non-U.S. currency movement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191 22 14 (8) — (34) Fair value of plan assets at end of period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185 167 15 14 (7) 7 (5) 191 167 29 15 (6) — (38) 167 Unfunded status at end of year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 46 $ 64 $ 67 (1) During fiscal 2014 the Japan entity assumed benefit obligations and plan assets from Hitachi. These pension obligations related to former Hitachi employees who were hired into the HGST Japan entity during or soon after the 2012 acquisition of HGST by the Company. 86 WESTERN DIGITAL CORPORATION NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued) The following table presents the unfunded amounts as recognized on the Company’s consolidated balance sheets as of July 3, 2015 and June 27, 2014 (in millions): Current liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Non-current liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Net amount recognized . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2015 2014 $ 1 45 $46 $ 1 63 $64 The accumulated benefit obligation for the Japanese defined benefit pension plans was $231 million at July 3, 2015. As of July 3, 2015, net actuarial gains for the Japanese defined benefit pension plans of $5 million are included in accumulated other comprehensive income (loss) in the consolidated balance sheet. There were no prior service cred- its for the defined benefit pension plans recognized in accumulated other comprehensive income (loss) in the con- solidated balance sheet as of July 3, 2015. The amount expected to be amortized into net periodic benefit cost in fiscal 2016 is immaterial to the consolidated financial statements. Assumptions Weighted-Average Assumptions The weighted-average actuarial assumptions used to determine benefit obligations for the Japanese defined bene- fit pension plans were as follows for 2015, 2014 and 2013: 2015 2014 2013 Discount rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rate of compensation increase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.3% 1.6% 1.6% 0.9% 1.0% 0.9% The weighted-average actuarial assumptions used to determine benefit costs for the Japanese defined benefit pension plans were as follows for 2015, 2014 and 2013: 2015 2014 2013 Discount rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Expected long-term rate of return on plan assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rate of compensation increase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.6% 1.6% 1.8% 3.5% 3.5% 3.5% 1.0% 0.9% 1.2% The Company develops a discount rate by calculating when the estimated benefit payments will be due. Manage- ment in Japan then matches the benefit payments to AA or higher bond ratings that match the timing of the expected benefit payments to determine the appropriate discount rate. The Company develops the expected long-term rate of return on plan assets by analyzing rates of return in Japan as well as the investment portfolio applicable to the plan. Management’s estimates of future rates of return on assets is based in large part on the projected rate of return from the respective investment managers using a long-term view of historical returns, as well as actuarial recommendations using the most current generational and mortality tables and rates. The Company develops the rate of compensation increase assumptions using local compensation practices and historical rates of increases. Plan Assets Investment Policies and Strategies The investment policy in Japan is to generate a stable return on investments over a long-term horizon in order to have adequate pension funds to meet the Company’s future obligations. In order to achieve this investment goal, a diversified portfolio with target asset allocation and expected rate of return is established by considering factors such 87 WESTERN DIGITAL CORPORATION NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued) as composition of participants, level of funded status, capacity to absorb risks, and the current economic environment. The target asset allocation is 35% in equity securities, 62% in debt securities and the remaining 3% in other assets. Risk management is accomplished through diversification, periodic review of plan asset performance, and appropriate realignment of asset allocation. Assumptions regarding the expected long-term rate of return on plan assets are periodically reviewed and are based on the historical trend of returns, the risk and correlation of each asset, and the latest economic environment. The expected long-term rate of return is estimated based on many factors, including expected forecast for inflation, risk premiums for each asset class, expected asset allocation, current and future financial market conditions, and diversification and rebalancing strategies. Historical return patterns and correlations, consensus return forecasts, and other relevant financial factors are analyzed periodically by the investment advisor so as to ensure that the expected long-term rate of return is reasonable and appropriate. Fair Value Measurements The following table presents the Japanese defined benefit pension plans’ major asset categories and their asso- ciated fair values as of July 3, 2015 (in millions): Level 1 Level 2 Level 3 Total Equity: Equity commingled/mutual funds(1)(2) . . . . . . . . . . . . . . . . . . . . . $— $ 65 $— $ 65 Fixed income: Fixed income commingled/mutual funds(1)(3) . . . . . . . . . . . . . . . . — 6 Cash and short-term investments . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112 2 — — 112 8 Fair value of plan assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 6 $179 $— $185 The following table presents the Japanese defined benefit pension plans’ major asset categories and their asso- ciated fair values as of June 27, 2014 (in millions): Level 1 Level 2 Level 3 Total Equity: Equity commingled/mutual funds(1)(2) . . . . . . . . . . . . . . . . . . . . . $— $ 69 $— $ 69 Fixed income: Fixed income commingled/mutual funds(1)(3) . . . . . . . . . . . . . . . . — 8 Cash and short-term investments . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111 3 — — 111 11 Fair value of plan assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 8 $183 $— $191 (1) Commingled funds represent pooled institutional investments. (2) Equity mutual funds invest primarily in equity securities. (3) Fixed income mutual funds invest primarily in fixed income securities. Assets held in defined benefit plans in the Philippines, Taiwan and Thailand were less than $1 million and are not presented in the above tables. There were no significant movements of assets between any level categories in 2015, 2014 or 2013. Fair Value Valuation Techniques Equity securities are valued at the closing price reported on the stock exchange on which the individual securities are traded. Equity commingled/mutual funds are typically valued using the NAV provided by the investment 88 WESTERN DIGITAL CORPORATION NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued) manager or administrator of the fund. The NAV is based on the value of the underlying assets owned by the fund, minus liabilities and divided by the number of shares or units outstanding. These assets are classified as either Level 1 or Level 2, depending on availability of quoted market prices for identical or similar assets. If available, fixed income securities are valued using the close price reported on the major market on which the individual securities are traded and are classified as Level 1. The fair value of other fixed income securities is typically estimated using pricing models and quoted prices of securities with similar characteristics, and is generally classified as Level 2. Cash includes money market accounts that are valued at their cost plus interest on a daily basis, which approx- imates fair value. Short-term investments represent securities with original maturities of one year or less. These assets are classified as either Level 1 or Level 2. Cash Flows Contributions The Company’s expected employer contributions for 2016 are $9 million for its Japanese defined benefit pension plans. Estimated Future Benefits Payments Annual benefit payments from the Japanese defined benefit pension plans are estimated to range from $5 million to $9 million annually over the next five years. Note 15. Acquisitions The consolidated financial statements include the results of operations of acquired companies commencing after their respective acquisition dates. Disclosed below are those acquisitions which have a significant impact to the Company’s consolidated financial statements. Acquisition of Amplidata On March 9, 2015, the Company acquired Amplidata NV (“Amplidata”), a developer of object storage software for public and private cloud data centers. As a result of the acquisition, Amplidata was fully integrated into the Company’s HGST subsidiary and became a wholly owned indirect subsidiary of the Company. The purchase price of the acquisition was approximately $267 million, consisting of $245 million funded with available cash at the time of the acquisition, $19 million related to the fair value of a previously-held cost method investment and $3 million related to the fair value of stock options assumed. The acquisition is expected to further HGST’s strategy to expand into higher value data storage platforms and systems that address the growth in storage requirements in cloud data centers. The Company identified and recorded the assets acquired and liabilities assumed at their estimated fair values at the date of acquisition, and allocated the remaining value of $215 million to goodwill. The values assigned to the acquired assets and liabilities are based on preliminary estimates of fair value available as of the date of this Annual Report on Form 10-K, and may be adjusted during the measurement period of up to 12 months from the date of the acquisition as further information becomes available with any changes in the fair values potentially resulting in adjustments to goodwill. The individual tangible and intangible assets acquired as well as the liabilities assumed in the acquisition were immaterial to the Company’s consolidated financial statements. In addition, pro forma financial information has not been presented as the acquisition did not have a material impact on the Company’s consolidated financial statements for 2015. 89 WESTERN DIGITAL CORPORATION NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued) The preliminary purchase price allocation for Amplidata is as follows (in millions): Tangible assets acquired and liabilities assumed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Intangible assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Goodwill . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . March 9, 2015 $ (24) 76 215 Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $267 Since the date of acquisition, the Company recorded an increase of $42 million to goodwill which primarily related to an adjustment to the value of deferred taxes acquired, an adjustment to the value of intangible assets acquired, and an adjustment for the fair value of stock options assumed in the acquisition of Amplidata. The primary area of the preliminary purchase price allocation that is not yet finalized due to information that may become available subsequently is income taxes. Any changes in the fair value could potentially result in adjustments to goodwill. The Company expects to finalize the purchase price allocation in 2016. The $215 million of goodwill recognized is primarily attributable to the benefits the Company expects to derive from an ability to create HDD storage solutions leveraging the core software acquired and is not expected to be deductible for tax purposes. The impact to revenue and net income attributable to Amplidata was immaterial to the Company’s consolidated financial statements. Prior to the acquisition date, the Company held a non-controlling interest in Amplidata accounted for under the cost method of accounting. Upon acquiring the outstanding ownership stake in Amplidata, the Company remeasured its original equity interest to its fair value using the income approach, which utilizes estimates of discounted future cash flows, and recognized a $9 million gain during the year ended July 3, 2015, which was recorded within the employee termination benefits, asset impairments and other charges line item in the consolidated statements of income. Note 16. Thailand Flooding In October 2011, severe flooding in Thailand inundated all of the Company’s Thailand manufacturing facilities and submerged certain equipment located there. The Company maintains insurance coverage that provides property and business interruption coverage in the event of losses arising from flooding. As a result, the Company recorded $37 million and $65 million of flood-related insurance recoveries in fiscal 2015 and 2014, respectively. These flood-related insurance recoveries were included within the selling, general and administrative expenses within the Company’s consolidated statements of income. All flood-related claims submitted by the Company to its insurers were closed as of July 3, 2015. Note 17. Employee Termination, Asset Impairment and Other Charges Employee termination, asset impairment and other charges within the Company’s consolidated statements of income primarily relate to charges to realign the Company’s operations with anticipated market demand and are as follows: Employee termination benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Impairment of assets Contract termination and other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . July 3, 2015 $ 82 82 12 Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $176 Years Ended June 27, 2014 June 28, 2013 $27 62 6 $95 $109 14 15 $138 90 WESTERN DIGITAL CORPORATION NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued) In 2015 and 2014, the impairment charges primarily relate to equipment and in-process research and develop- ment projects that were abandoned and resulted in full impairment. The following table provides those amounts recorded as liabilities within the Company’s consolidated balance sheets: Employee termination benefits . . . . . . . $37 $27 $(64) $— $82 $(72) June 28, 2013 Accruals Payments June 27, 2014 Accruals Payments July 3, 2015 $10 Note 18. Quarterly Results of Operations (unaudited) First Second Third Fourth 2015(1) Revenue, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Gross profit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Basic income per common share . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $3,943 1,149 469 423 $ 1.81 $3,888 1,110 466 438 $ 1.88 $3,550 1,032 421 384 $ 1.66 $3,191 930 255 220 $ 0.95 Diluted income per common share . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 1.76 $ 1.84 $ 1.63 $ 0.94 2014(2) Revenue, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Gross profit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Basic income per common share . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $3,804 1,099 542 495 $ 2.10 $3,972 1,156 478 430 $ 1.82 $3,703 1,076 419 375 $ 1.60 $3,651 1,029 352 317 $ 1.35 Diluted income per common share . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 2.05 $ 1.77 $ 1.55 $ 1.32 (1) The first, second, third, and fourth quarters of 2015 included $9 million, $53 million, $10 million, and $104 million, respectively, of employee termination, asset impairment, and other charges. The first and second quarters of 2015 included $14 million and $1 million, respectively, of charges related to interest on an arbitration award. The second quarter of 2015 included a $37 million gain on flood-related insurance recovery. (2) The first, second, third and fourth quarters of 2014 included $11 million, $23 million, $25 million and $36 mil- lion, respectively, of employee termination, asset impairment and other charges. Each of the four quarters of 2014 included $13 million of charges related to interest on an arbitration award. The first quarter of 2014 included a $65 million gain on flood-related insurance recovery. 91 WESTERN DIGITAL CORPORATION SCHEDULE II — CONSOLIDATED VALUATION AND QUALIFYING ACCOUNTS Three years ended July 3, 2015 (in millions) Allowance for Doubtful Accounts Balance at June 29, 2012 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Additions charges to operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Deductions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Balance at June 28, 2013 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Additions charged to operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Deductions Balance at June 27, 2014 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Deductions Balance at July 3, 2015 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 9 8 (10) 2 $ 9 3 (1) $ 11 (4) $ 7 92 Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure None. Item 9A. Controls and Procedures Evaluation of Disclosure Controls and Procedures As required by SEC Rule 13a-15(b) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), we carried out an evaluation, under the supervision and with the participation of our management, including our Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of our disclosure controls and procedures (as such term is defined in Rule 13a-15(e) under the Exchange Act) as of the end of the period covered by this Annual Report on Form 10-K. Based on that evaluation, our Chief Executive Officer and Chief Financial Officer concluded that, as of the end of the period covered by this Annual Report on Form 10-K, our disclosure controls and procedures were effective. Management’s Report on Internal Control over Financial Reporting Our management is responsible for establishing and maintaining adequate internal control over financial report- ing (as defined in Rules 13a-15(f) and 15d-15(f) of the Exchange Act) to provide reasonable assurance regarding the reliability of our financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. Internal control over financial reporting includes those policies and procedures that (i) pertain to the maintenance of records that in reasonable detail accurately and fairly reflect the transactions and dispositions of our assets; (ii) provide reasonable assurance that the transactions are recorded as neces- sary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that our receipts and expenditures are being made only in accordance with authorizations of our management and our directors; and (iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition of our assets that could have a material effect on the financial statements. Our management evaluated the effectiveness of our internal control over financial reporting using the criteria set forth by the Committee of Sponsoring Organizations of the Treadway Commission (COSO) in Internal Control — Integrated Framework (1992). Based on this evaluation, our management concluded that our internal control over financial reporting was effective as of the end of the period covered by this Annual Report on Form 10-K. KPMG LLP, our independent registered public accounting firm, which audited the consolidated financial statements included in this Annual Report on Form 10-K, has issued an audit report on our internal control over financial reporting. See Report of Independent Registered Public Accounting Firm herein. Changes in Internal Control over Financial Reporting There has been no change in our internal control over financial reporting during the fourth fiscal quarter ended July 3, 2015, that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting. Inherent Limitations of Effectiveness of Controls Our management, including our Chief Executive Officer and our Chief Financial Officer, does not expect our internal controls over financial reporting will prevent all error and all fraud. A control system, no matter how well conceived and operated, can provide only reasonable, not absolute, assurance that the objectives of the control system are met. Further, the benefits of controls must be considered relative to their costs. Because of the inherent limitations in a system of internal control over financial reporting, no evaluation of controls can provide absolute assurance that all control issues and instances of fraud, if any, have been detected. These inherent limitations include the realities that judgments in decision-making can be faulty, and that breakdowns can occur because of simple error or mistake. Additionally, controls can be circumvented by the individual acts of some persons, by collusion of two or more people, or by management override of the control. The design of any system of controls is also based in part upon certain 93 assumptions about the likelihood of future events, and there can be no assurance that any design will succeed in achiev- ing its stated goals under all potential future conditions. Because of the inherent limitations in a cost-effective control system, misstatements due to error or fraud may occur and not be detected. Item 9B. Other Information None. 94 PART III Item 10. Directors, Executive Officers and Corporate Governance There is incorporated herein by reference the information required by this Item included in the Company’s Proxy Statement for the 2015 Annual Meeting of Stockholders, which will be filed with the SEC no later than 120 days after the close of the fiscal year ended July 3, 2015, except that the information required by this Item 10 concerning execu- tive officers is set forth in Part I of this report under “Item 1. Business — Executive Officers of the Registrant.” In addition, our Board of Directors has adopted a Code of Business Ethics that applies to all of our directors, employees and officers, including our Chief Executive Officer and Chief Financial Officer. The current version of the Code of Business Ethics is available on our website under the Governance section at www.westerndigital.com. To the extent required by rules adopted by the SEC and The NASDAQ Stock Market LLC, we intend to promptly disclose future amendments to certain provisions of the Code of Business Ethics, or waivers of such provisions granted to executive officers and directors, on our website under the Governance section at www.westerndigital.com. Item 11. Executive Compensation There is incorporated herein by reference the information required by this Item included in the Company’s Proxy Statement for the 2015 Annual Meeting of Stockholders, which will be filed with the SEC no later than 120 days after the close of the fiscal year ended July 3, 2015. Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters There is incorporated herein by reference the information required by this Item included in the Company’s Proxy Statement for the 2015 Annual Meeting of Stockholders, which will be filed with the SEC no later than 120 days after the close of the fiscal year ended July 3, 2015. Item 13. Certain Relationships and Related Transactions, and Director Independence There is incorporated herein by reference the information required by this Item included in the Company’s Proxy Statement for the 2015 Annual Meeting of Stockholders, which will be filed with the SEC no later than 120 days after the close of the fiscal year ended July 3, 2015. Item 14. Principal Accountant Fees and Services There is incorporated herein by reference the information required by this Item included in the Company’s Proxy Statement for the 2015 Annual Meeting of Stockholders, which will be filed with the SEC no later than 120 days after the close of the fiscal year ended July 3, 2015. 95 PART IV Item 15. Exhibits and Financial Statement Schedules (a) Documents filed as a part of this Annual Report on Form 10-K: (1) Financial Statements The financial statements included in Part II, Item 8 of this document are filed as part of this Annual Report on Form 10-K. (2) Financial Statement Schedules The financial statement schedule included in Part II, Item 8 of this document is filed as part of this Annual Report on Form 10-K. All other schedules are omitted as the required information is inapplicable or the information is presented in the consolidated financial statements or related Notes. Separate financial statements have been omitted as we are primarily an operating company and our subsidiaries are wholly or majority owned and do not have minority equity interests and/or indebtedness to any person other than us in amounts which together exceed 5% of the total consolidated assets as shown by the most recent year-end con- solidated balance sheet. (3) Exhibits The exhibits listed in the Exhibit Index (following the signature page of the Annual Report on Form 10-K) are filed with, or incorporated by reference in, this Annual Report on Form 10-K, as specified in the Exhibit List, from exhibits previously filed with the SEC. Certain agreements listed in the Exhibit List that we have filed or incorporated by reference may contain representations and warranties by us or our subsidiaries. These representations and warranties have been made solely for the benefit of the other party or parties to such agreements and (i) may have been qualified by disclosures made to such other party or parties, (ii) were made only as of the date of such agreements or such other date(s) as may be specified in such agreements and are subject to more recent developments, which may not be fully reflected in our public disclosures, (iii) may reflect the allocation of risk among the parties to such agreements and (iv) may apply materiality standards different from what may be viewed as material to investors. Accordingly, these representations and warranties may not describe the actual state of affairs at the date hereof and should not be relied upon. 96 Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this Annual Report on Form 10-K to be signed on its behalf by the undersigned, thereunto duly authorized. SIGNATURES WESTERN DIGITAL CORPORATION By: /s/ OLIVIER C. LEONETTI Olivier C. Leonetti Chief Financial Officer Dated: August 21, 2015 Pursuant to the requirements of the Securities Exchange Act of 1934, this Annual Report on Form 10-K has been signed below by the following persons on behalf of the Registrant and in the capacities and on the dates indicated. Signature Title Date /s/ STEPHEN D. MILLIGAN Stephen D. Milligan /s/ OLIVIER C. LEONETTI Olivier C. Leonetti /s/ THOMAS E. PARDUN Thomas E. Pardun /s/ MARTIN I. COLE Martin I. Cole /s/ KATHLEEN A. COTE Kathleen A. Cote /s/ HENRY T. DENERO Henry T. DeNero /s/ MICHAEL D. LAMBERT Michael D. Lambert /s/ LEN J. LAUER Len J. Lauer /s/ MATTHEW E. MASSENGILL Matthew E. Massengill /s/ PAULA A. PRICE Paula A. Price President and Chief Executive Officer (Principal Executive Officer), Director August 21, 2015 Chief Financial Officer (Principal Financial Officer and Principal Accounting Officer) August 21, 2015 Chairman of the Board August 21, 2015 August 21, 2015 August 21, 2015 August 21, 2015 August 21, 2015 August 21, 2015 August 21, 2015 August 21, 2015 Director Director Director Director Director Director Director 97 Exhibit Number 3.1 3.2 10.1 10.1.1 10.1.2 10.1.3 10.1.4 10.1.5 10.1.6 10.1.7 10.1.8 10.2 EXHIBIT INDEX Description Amended and Restated Certificate of Incorporation of Western Digital Corporation, as amended to date (Filed as Exhibit 3.1 to the Company’s Quarterly Report on Form 10-Q (File No. 1-08703) with the Securities and Exchange Commission on February 8, 2006) Amended and Restated By-Laws of Western Digital Corporation, as amended effective as of November 14, 2013 (Filed as Exhibit 3.1 to the Company’s Current Report on Form 8-K (File No. 1-08703) with the Securities and Exchange Commission on November 14, 2013) Western Digital Corporation Amended and Restated 2004 Performance Incentive Plan, amended and restated as of August 7, 2012 (Filed as Exhibit 10.1 to the Company’s Current Report on Form 8-K (File No. 1-08703) with the Securities and Exchange Commission on November 13, 2012)* Form of Notice of Grant of Stock Option and Option Agreement—Executives, under the Western Digital Corporation Amended and Restated 2004 Performance Incentive Plan (Filed as Exhibit 10.2 to the Company’s Quarterly Report on Form 10-Q (File No. 1-08703) with the Securities and Exchange Commission on October 28, 2011)* Form of Notice of Stock Option Grant and Stock Option Agreement—Non-Executives, under the Western Digital Corporation Amended and Restated 2004 Performance Incentive Plan (Filed as Exhibit 10.1.5 to the Company’s Current Report on Form 8-K (File No. 1-08703) with the Securities and Exchange Commission on May 16, 2006)* Form of Notice of Grant of Stock Units and Stock Unit Award Agreement—Executives, under the Western Digital Corporation Amended and Restated 2004 Performance Incentive Plan (Filed as Exhibit 10.3 to the Company’s Quarterly Report on Form 10-Q (File No. 1-08703) with the Securities and Exchange Commission on October 28, 2011)* Form of Notice of Grant of Stock Units and Stock Unit Award Agreement, under the Western Digital Corporation Amended and Restated 2004 Performance Incentive Plan (Filed as Exhibit 10.1.6 to the Company’s Quarterly Report on Form 10-Q (File No. 1-08703) with the Securities and Exchange Commission on October 31, 2008)* Form of Notice of Grant of Performance Stock Units and Performance Stock Unit Award Agreement, under the Western Digital Corporation Amended and Restated 2004 Performance Incentive Plan (Filed as Exhibit 10.1.7 to the Company’s Annual Report on Form 10-K (File No. 1-08703) with the Securities and Exchange Commission on August 20, 2012)* Western Digital Corporation Amended and Restated 2004 Performance Incentive Plan Non-Employee Director Option Grant Program, as amended September 6, 2012, and Form of Notice of Grant of Stock Option and Option Agreement — Non-Employee Directors (Filed as Exhibit 10.5 to the Company’s Quarterly Report on Form 10-Q (File No. 1-08703) with the Securities and Exchange Commission on November 2, 2012)* Western Digital Corporation Amended and Restated 2004 Performance Incentive Plan Non-Employee Director Restricted Stock Unit Grant Program, as amended September 6, 2012 (Filed as Exhibit 10.6 to the Company’s Quarterly Report on Form 10-Q (File No. 1-08703) with the Securities and Exchange Commission on November 2, 2012)* Western Digital Corporation Incentive Compensation Plan, as Amended and Restated August 5, 2015†* Western Digital Corporation 2005 Employee Stock Purchase Plan, as amended August 6, 2012 (Filed as Exhibit 4.2 to the Company’s Registration Statement on Form S-8 (File No. 333-185194) with the Securities and Exchange Commission on November 29, 2012)* 98 Exhibit Number Description 10.3 10.4 10.5 10.6 10.7 10.8 10.9 10.10 10.11 10.12 10.12.1 10.13 21 23 Western Digital Corporation Summary of Compensation Arrangements for Named Executive Officers and Directors†* Amended and Restated Deferred Compensation Plan, amended and restated effective January 1, 2013 (Filed as Exhibit 10.4 to the Company’s Annual Report on Form 10-Q (File No. 1-08703) with the Securities and Exchange Commission on November 2, 2012)* Amended and Restated Employment Agreement, dated as of September 6, 2012, between Western Digital Corporation and Stephen D. Milligan (Filed as Exhibit 10.2 to the Company’s Quarterly Report on Form 10-Q (File No. 1-08703) with the Securities and Exchange Commission on November 2, 2012)* Separation and General Release Agreement, dated August 25, 2014, between Western Digital Corporation and Timothy M. Leyden (Filed as Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q (File No. 1-08703) with the Securities and Exchange Commission on November 4, 2014)* Western Digital Corporation Amended and Restated Change of Control Severance Plan, amended and restated as of September 11, 2014 (Filed as Exhibit 10.3 to the Company’s Quarterly Report on Form 10-Q (File No. 1-08703) with the Securities and Exchange Commission on November 4, 2014)* Western Digital Corporation Executive Severance Plan, amended and restated as of February 4, 2015 (Filed as Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q (File No. 1-08703) with the Securities and Exchange Commission on February 10, 2015)* Form of Indemnity Agreement for Directors of Western Digital Corporation (Filed as Exhibit 10.4 to the Company’s Quarterly Report on Form 10-Q (File No. 1-08703) with the Securities and Exchange Commission on November 8, 2002)* Form of Indemnity Agreement for Officers of Western Digital Corporation (Filed as Exhibit 10.5 to the Company’s Quarterly Report on Form 10-Q (File No. 1-08703) with the Securities and Exchange Commission on November 8, 2002)* Offer Letter, dated August 14, 2014, to Olivier C. Leonetti (Filed as Exhibit 10.2 to the Company’s Quarterly Report on Form 10-Q (File No. 1-08703) with the Securities and Exchange Commission on November 4, 2014)* Credit Agreement, dated as of January 9, 2014, among Western Digital Technologies, Inc. and Western Digital Ireland, Ltd., as Borrowers; Western Digital Corporation, as Holdings; JPMorgan Chase Bank, N.A., as Administrative Agent; the other lenders party thereto; J.P. Morgan Securities LLC, as Sole Lead Arranger and Joint Bookrunner; HSBC Bank USA, N.A., Royal Bank of Canada, Bank of America, N.A. and Citibank, N.A., as Co-Syndication Agents (Filed as Exhibit 10.1 to the Company’s Current Report on Form 8-K (File No. 1-08703) with the Securities and Exchange Commission on January 9, 2014) First Amendment to Credit Agreement, dated as of February 25, 2015, to the Credit Agreement dated as of January 9, 2014, among Western Digital Technologies, Inc. and Western Digital Ireland, Ltd., as borrowers, Western Digital Corporation, JPMorgan Chase Bank, N.A., as administrative agent, and the other lenders party thereto from time to time (Filed as Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q (File No. 1-08703) with the Securities and Exchange Commission on May 12, 2015) Transition Services Agreement, dated March 7, 2011, among Hitachi, Ltd., Viviti Technologies Ltd. and Western Digital Corporation (Filed as Exhibit 10.4 to the Company’s Quarterly Report on Form 10-Q (File No. 1-08703) with the Securities and Exchange Commission on May 2, 2011) Subsidiaries of Western Digital Corporation† Consent of Independent Registered Public Accounting Firm† 99 Exhibit Number 31.1 31.2 32.1 32.2 101.INS 101.SCH 101.CAL 101.LAB 101.PRE 101.DEF Description Certification of Principal Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002† Certification of Principal Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002† Certification of Chief Executive Officer Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002** Certification of Chief Financial Officer Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002** XBRL Instance Document† XBRL Taxonomy Extension Schema Document† XBRL Taxonomy Extension Calculation Linkbase Document† XBRL Taxonomy Extension Label Linkbase Document† XBRL Taxonomy Extension Presentation Linkbase Document† XBRL Taxonomy Extension Definition Linkbase Document† † Filed with this report. ** Furnished with this report. * Management contract or compensatory plan or arrangement required to be filed as an exhibit pursuant to appli- cable rules of the Securities and Exchange Commission. 100 WESTERN DIGITAL CORPORATION SUBSIDIARIES OF THE COMPANY Name of Entity Exhibit 21 State or Other Jurisdiction of Incorporation or Organization Arkeia Software SARL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . France Arkeia Software, Inc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Delaware Fabrik, LLC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Delaware G-Tech, LLC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . California HGSP (Shenzhen) Co., Ltd. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . China HGST (Shenzhen) Co., Ltd. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . China HGST (Thailand) Ltd. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Thailand HGST Asia Pte. Ltd. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Singapore HGST Consulting (Shanghai) Co., Ltd. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . China HGST Europe, Ltd. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . United Kingdom HGST Japan, Ltd. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Japan HGST Malaysia Sdn. Bhd. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Malaysia HGST Netherlands B.V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Netherlands HGST Philippines Corp. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Philippines HGST Singapore Pte. Ltd. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Singapore HGST Technologies Malaysia Sdn. Bhd. (formerly known as sTec Technology Sdn. Bhd.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Malaysia HGST Technologies Santa Ana, Inc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . California HGST, Inc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Delaware HICAP Properties Corp. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Philippines Keen Personal Media, Inc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Delaware Pacifica Insurance Corporation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hawaii Read-Rite International . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cayman Islands Read-Rite Philippines, Inc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Philippines RS Patent Holding Corporation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Delaware Shenzhen Hailiang Storage Products Co., Ltd. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . China SiliconSystems, Inc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . California SimpleTech, LLC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Delaware Skyera, LLC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Delaware STEC Bermuda, LP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bermuda STEC Electronics UK Ltd. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . United Kingdom STEC Europe B.V. (Netherlands) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Netherlands STEC Germany GmbH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Germany STEC Hong Kong Ltd. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hong Kong STEC India Private Limited . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . STEC International Holding, Inc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . California India STEC Italy SRL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Italy Japan STEC Japan GK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . STEC Memory Technology Service (Shanghai) Co. Ltd. . . . . . . . . . . . . . . . . . . . . . . . . . . . China Name of Entity State or Other Jurisdiction of Incorporation or Organization STEC R&D Ltd. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cayman Islands STEC Taiwan Holding Ltd. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cayman Islands Suntech Realty, Inc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Philippines Velobit, Inc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Delaware Virident Systems Australia PTY Limited . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Australia Virident Systems Private Limited . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . India Virident Systems, Inc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Delaware Virident UK Limited . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . United Kingdom Viviti Technologies Pte. Ltd. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Singapore Viviti Technologies US, Inc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Delaware WD Media (Malaysia) Sdn. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Malaysia WD Media (Singapore) Pte. Ltd. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Singapore WD Media, LLC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Delaware Western Digital (Argentina) S.A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Argentina Western Digital (Deutschland) GmbH Ltd. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Germany Western Digital (France) SARL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . France Western Digital (Fremont), LLC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Delaware Western Digital (I.S.) Limited . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ireland Western Digital (Malaysia) Sdn. Bhd. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Malaysia Western Digital (S.E. Asia) Pte Ltd . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Singapore Western Digital (Thailand) Company Limited . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Thailand Western Digital (UK) Limited . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . United Kingdom Western Digital Canada Corporation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ontario, Canada Western Digital Capital, LLC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Delaware Western Digital Capital Global, Inc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cayman Islands Western Digital Do Brasil Comercio E Distribuicao De Produtos De Informatica Ltda. . . Brazil Western Digital Hong Kong Limited . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hong Kong Western Digital Information Technology (Shanghai) Company Ltd. . . . . . . . . . . . . . . . . . China Western Digital International Ltd. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cayman Islands Western Digital Ireland, Ltd. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cayman Islands Western Digital Japan Ltd. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Japan Western Digital Korea, Ltd. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Republic of Korea Western Digital Latin America, Inc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Delaware Western Digital Netherlands B.V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . The Netherlands Western Digital Taiwan Co., Ltd. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Taiwan Western Digital Technologies, Inc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Delaware Exhibit 23 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM The Board of Directors Western Digital Corporation: We consent to the incorporation by reference in the registration statements on Form S-8 (Nos. 333-41423, 333- 42991, 33-56128, 333-122475, 333-129813, 333-155661, 333-163133, 333-180286, 333-185194, 333-190290, 333-191216, 333-191910, and 333-202646) of Western Digital Corporation of our reports dated August 21, 2015, with respect to the consolidated balance sheets of Western Digital Corporation and subsidiaries as of July 3, 2015 and June 27, 2014, and the related consolidated statements of income, comprehensive income, shareholders’ equity, and cash flows for each of the years in the three-year period ended July 3, 2015, and the related financial statement sched- ule, and the effectiveness of internal control over financial reporting as of July 3, 2015, which reports appear in the July 3, 2015, Annual Report on Form 10-K of Western Digital Corporation. /s/ KPMG LLP August 21, 2015 Irvine, California [THIS PAGE INTENTIONALLY LEFT BLANK] Exhibit 31.1 CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Stephen D. Milligan, certify that: 1. I have reviewed this Annual Report on Form 10-K of Western Digital Corporation; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report; 3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report; 4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15(d)-15(e)) and internal control over finan- cial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have: a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its con- solidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared; b. Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles; c. Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and d. Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and 5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of direc- tors (or persons performing the equivalent functions): a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting. Dated: August 21, 2015 /s/ STEPHEN D. MILLIGAN Stephen D. Milligan President and Chief Executive Officer Exhibit 31.2 CERTIFICATION OF PRINCIPAL FINANCIAL OFFICER PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Olivier C. Leonetti, certify that: 1. I have reviewed this Annual Report on Form 10-K of Western Digital Corporation; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report; 3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report; 4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15(d)-15(e)) and internal control over finan- cial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have: a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its con- solidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared; b. Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles; c. Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and d. Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and 5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of direc- tors (or persons performing the equivalent functions): a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting. Dated: August 21, 2015 /s/ OLIVIER C. LEONETTI Olivier C. Leonetti Chief Financial Officer The following certification is being furnished solely to accompany the Report pursuant to 18 U.S.C. § 1350 and in accordance with SEC Release No. 33-8238. This certification shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section, nor shall it be incorporated by reference into any filing of the Company under the Securities Act of 1933, as amended, or the Secu- rities Exchange Act of 1934, as amended, except to the extent that Western Digital Corporation specifically incorporates it by reference. Exhibit 32.1 Certification of Chief Executive Officer Pursuant to 18 U.S.C. § 1350, as created by Section 906 of the Sarbanes-Oxley Act of 2002, the undersigned officer of Western Digital Corporation, a Delaware corporation (the “Company”), hereby certifies, to his knowledge, that: (i) the accompanying Annual Report on Form 10-K of the Company for the period ended July 3, 2015 (the “Report”) fully complies with the requirements of Section 13(a) or Section 15(d), as applicable, of the Securities Exchange Act of 1934, as amended; and (ii) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company. /s/ STEPHEN D. MILLIGAN Stephen D. Milligan President and Chief Executive Officer Dated: August 21, 2015 The following certification is being furnished solely to accompany the Report pursuant to 18 U.S.C. § 1350 and in accordance with SEC Release No. 33-8238. This certification shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section, nor shall it be incorporated by reference into any filing of the Company under the Securities Act of 1933, as amended, or the Secu- rities Exchange Act of 1934, as amended, except to the extent that Western Digital Corporation specifically incorporates it by reference. Exhibit 32.2 Certification of Chief Financial Officer Pursuant to 18 U.S.C. § 1350, as created by Section 906 of the Sarbanes-Oxley Act of 2002, the undersigned officer of Western Digital Corporation, a Delaware corporation (the “Company”), hereby certifies, to his knowledge, that: (i) the accompanying Annual Report on Form 10-K of the Company for the period ended July 3, 2015 (the “Report”) fully complies with the requirements of Section 13(a) or Section 15(d), as applicable, of the Securities Exchange Act of 1934, as amended; and (ii) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company. /s/ OLIVIER C. LEONETTI Olivier C. Leonetti Chief Financial Officer Dated: August 21, 2015 CORPORATE INFORMATION Board of Directors Thomas E. Pardun* Chairman of the Board Former President MediaOne International Asia-Pacific *To retire as of November 2015 Martin I. Cole Former Group Chief Executive, Technology Accenture plc Kathleen A. Cote Former Chief Executive Officer Worldport Communications, Inc. Henry T. DeNero Former Chairman and Chief Executive Officer Homespace, Inc. Michael D. Lambert Former Senior Vice President Dell Inc. Len J. Lauer* Chairman and Chief Executive Officer Memjet *Appointed Lead Independent Director as of November 2015 Matthew E. Massengill* Former Chairman, President and Chief Executive Officer Western Digital Corporation *Appointed Chairman of the Board as of November 2015 Stephen D. Milligan President and Chief Executive Officer Western Digital Corporation Paula A. Price Senior Lecturer Harvard Business School Executive Officers Stephen D. Milligan President and Chief Executive Officer James J. Murphy President WD Subsidiary Olivier C. Leonetti Executive Vice President and Chief Financial Officer Mark P. Long Executive Vice President and Chief Strategy Officer Michael D. Cordano President HGST Subsidiary Michael C. Ray Senior Vice President, General Counsel and Secretary Stock Exchange Listing Western Digital’s common stock trades on The NASDAQ Global Select MarketSM under the symbol WDC. Worldwide Websites westerndigital.com investor.wdc.com hgst.com wd.com Corporate Headquarters Western Digital Corporation 3355 Michelson Drive, Suite 100 Irvine, California 92612 949.672.7000 Investor Relations investor.wdc.com investor@wdc.com 800.695.6399 Transfer Agent and Registrar American Stock Transfer & Trust Company, LLC Operations Center - 6201 15th Avenue Brooklyn, New York 11219 www.amstock.com 800.937.5449 Independent Registered Public Accounting Firm KPMG LLP CERTAIN FORWARD-LOOKING STATEMENTS This Annual Report contains forward-looking statements, including but not limited to: statements relating to the expectations regarding the expansion of digital data; demand for Western Digital products and factors contributing to such demand; Western Digital’s positioning and opportunities in the storage industry; and Western Digital’s investments in new markets and technologies. These forward-looking statements are based on Western Digital’s current expectations and are subject to risks and uncertainties that could cause actual results to differ materially from those expressed in the forward-looking statements, including: volatility in global economic conditions; business conditions and growth in the storage ecosystem; pricing trends and fluctuations in average selling prices; the availability and cost of commodity materials and specialized product components; actions by competitors; unexpected advances in competing technologies; the development and introduction of products based on new technologies and expansion into new data storage markets; and other risks and uncertainties listed in Western Digital’s Form 10-K for the fiscal year ended July 3, 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 Western Digital undertakes no obligation to update these forward-looking statements to reflect subsequent events or circumstances. Western Digital, WD the WD logo, My Cloud and G-Technology are trademarks of Western Digital Technologies, Inc. and/or its affiliates. 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. All other trademarks mentioned are the property of their respective owners. © 2015 Western Digital Technologies, Inc. All rights reserved. 2278-001005-A11 Sept 2015 

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