What Happened to SanDisk (acquired by Western Digital) Stock?
SanDisk, a pioneering flash memory company, was acquired by Western Digital in 2016. After years of operating as a combined entity, Western Digital spun off its flash business, re-establishing SanDisk as an independent, publicly traded company (NASDAQ: SNDK) in February 2025. Both the newly focused Western Digital (NASDAQ: WDC) and the re-emerged SanDisk have experienced significant stock appreciation, driven by strong demand for storage solutions, particularly from the AI and cloud sectors.
Quick Answer
SanDisk's stock (SNDK) ceased to exist after its acquisition by Western Digital (WDC) in May 2016. However, in February 2025, Western Digital spun off its flash memory business, re-establishing SanDisk as an independent public company trading again under the ticker SNDK. Since the spin-off, both Western Digital (now focused on hard drives) and the new SanDisk (focused on flash) have seen substantial stock growth, with SNDK soaring over 1,200% and WDC rising over 400% by early 2026, fueled by robust demand in the data storage market, especially for AI infrastructure.
📊Key Facts
📅Complete Timeline13 events
SanDisk Founded
SanDisk (originally SunDisk) is founded by Eli Harari, Sanjay Mehrotra, and Jack Yuan, pioneering flash memory technology.
SanDisk Goes Public (SNDK)
SanDisk changes its name from SunDisk and goes public on Nasdaq under the ticker symbol SNDK, selling 16 million shares at $10.00 each.
Western Digital Announces SanDisk Acquisition
Western Digital announces its definitive agreement to acquire SanDisk for a combination of cash and stock, valuing SanDisk common stock at $86.50 per share, or approximately $19 billion.
Western Digital Completes SanDisk Acquisition
Western Digital officially closes the acquisition of SanDisk; the final valuation is lowered to $16 billion. SanDisk's stock (SNDK) is delisted.
Western Digital Announces Plan to Split
Facing pressure from activist investors and challenges in valuing its diverse businesses, Western Digital announces its intent to spin off its flash storage businesses.
SanDisk (SNDK) Spun Off and Relisted
Western Digital completes the spin-off of its flash business, re-establishing SanDisk Corporation as an independent public company, trading again on Nasdaq under the ticker SNDK.
WDC Reports Strong Q1 FY2026 Earnings
Western Digital (now focused on HDDs) reports fiscal Q1 2026 results, beating EPS and revenue estimates, driven by strong demand for high-capacity drives.
WDC Reports Q2 FY2026 Earnings, Strong Margins
Western Digital reports Q2 FY2026 revenue of $3.02 billion (up 25% YoY) and record non-GAAP gross margins of 46.1%, showcasing the success of its pure-play HDD model.
WDC Announces Share Buyback and Dividend Increase
Western Digital's Board announces a $4 billion share buyback program and a 25% increase in its quarterly cash dividend, signaling confidence in its financial health.
Western Digital Sells SanDisk Shares
Western Digital prices a secondary offering of 5.8 million SanDisk common stock shares at $545 each, raising $3.17 billion to reduce debt.
WDC and SNDK Hit All-Time Highs
Western Digital (WDC) reaches an all-time high of $319.62, and SanDisk (SNDK) hits $772.09, reflecting strong investor confidence in both companies.
WDC Stock Correction
Western Digital's stock experiences a 15% correction from its highs, attributed to profit-taking and broader tech-sector jitters.
Morgan Stanley Raises WDC Price Target
Morgan Stanley raises its price target on Western Digital (WDC) shares to $380 from $368, maintaining an 'Overweight' rating, citing strengthening hard disk drive demand.
🔍Deep Dive Analysis
SanDisk Corporation, a prominent innovator in flash memory, initially traded on Nasdaq under the ticker SNDK before its acquisition. In October 2015, Western Digital announced its intent to acquire SanDisk for approximately $19 billion, a deal that was finalized on May 12, 2016, with a final valuation of $16 billion after adjustments related to a Chinese investment in WD. This acquisition aimed to create a diversified storage solutions powerhouse, combining Western Digital's strength in hard disk drives (HDDs) with SanDisk's expertise in NAND flash technology.
However, the integration proved challenging for investors to value, as the flash and HDD businesses operated on different market cycles and margin profiles, leading to a perceived 'conglomerate discount' on Western Digital's stock. After years of pressure from activist investors, Western Digital announced plans in late 2023 to separate its flash business from its HDD operations. This strategic move culminated in the spin-off of SanDisk Corporation as an independent, publicly traded company (NASDAQ: SNDK) on February 24, 2025.
The separation proved to be a significant catalyst for both entities' stock performance. The 'new' Western Digital (WDC), now a pure-play HDD company, saw its stock surge dramatically, rising over 472% since the split by February 2026. This growth was largely driven by an insatiable demand for high-capacity hard drives from cloud data centers and the burgeoning artificial intelligence (AI) sector, with WDC reporting its entire 2026 HDD production capacity already sold out and orders extending into 2027 and 2028. For its fiscal first quarter 2026 (ended October 3, 2025), Western Digital reported revenue of $2.82 billion and non-GAAP diluted EPS of $1.78, both exceeding analyst expectations. The company continued its strong performance into Q2 FY2026 (ended January 2, 2026), with revenue of $3.02 billion (up 25% year-over-year) and non-GAAP gross margins reaching a record 46.1%.
Similarly, the re-emerged SanDisk (SNDK), focused solely on flash memory products, experienced an even more explosive stock performance, soaring almost 1,300% since its spin-off by February 2026. By April 2026, SanDisk's stock had increased over 1,371% in the preceding 12 months. Western Digital, which initially retained a significant equity stake in SanDisk, began divesting these shares to reduce debt, including a sale of 5.8 million SanDisk shares at $545 each in February 2026. As of April 6, 2026, Western Digital (WDC) trades around $294.97 with a market capitalization of approximately $100.01 billion, while SanDisk (SNDK) trades around $701.59 with a market cap of $103.56 billion. Analysts maintain a generally positive outlook for both companies, with Morgan Stanley raising WDC's price target to $380 on April 6, 2026, citing strengthening HDD demand.
What If...?
Explore alternate histories. What if SanDisk (acquired by Western Digital) Stock made different choices?