WESTERN DIGITAL Business Summary

Western Digital Corporation (WDC) operates as a pure-play leader in the data storage industry following the successful spin-off of its flash business, SanDisk, in February 2025. The company generates revenue through the design, manufacture, and sale of high-capacity hard disk drives (HDDs), primarily targeting the Cloud, Client, and Consumer segments. As of early 2026, the Cloud segment dominates the business model, accounting for approximately 89% of total revenue, driven by massive demand for nearline storage in AI-driven data centers. WDC utilizes advanced technologies such as Energy-assisted Perpendicular Magnetic Recording (ePMR), Shingled Magnetic Recording (UltraSMR), and Heat-Assisted Magnetic Recording (HAMR) to deliver 32TB+ drives. In the global HDD market, Western Digital maintains an oligopolistic position alongside its primary direct competitor, Seagate Technology, while also competing with enterprise storage providers like Pure Storage and NetApp. The company distinguishes itself through its massive manufacturing scale and long-term commercial agreements with top-tier hyperscale cloud providers. Originally founded in 1970 by Alvin B. Phillips, Western Digital is currently led by Chief Executive Officer Irving Tan, who assumed the role in late 2024 after serving as the company’s EVP of Global Operations and previously holding senior leadership positions at Cisco. The executive team includes Executive Vice President and CFO Kris Sennesael, Chief Product Officer Ahmed Shihab, and Chief of Global Operations Vidya Gubbi. The leadership is characterized by a deep pedigree in semiconductor and networking sectors, focusing on navigating the cyclicality of the storage market through disciplined capital allocation and a $4 billion share repurchase program. The company’s Board of Directors is chaired by Martin I. Cole, former CEO of Accenture’s Technology Group, and includes notable members such as Kimberly Alexy and Bruce Kiddoo. Institutional ownership remains high, with significant backing from major investment firms like Vanguard and BlackRock, reflecting the company's critical role in the global AI infrastructure supply chain.