WDC
Western DigitalHard disk drives for hyperscale data storage.
Next earnings: Western Digital has not announced its next earnings date. Its last earnings release was filed with the SEC on October 22, 2026 (Form 8-K, item 2.02); companies on this list usually announce the next date two to three weeks ahead. Last earnings release on EDGAR
01What does it supply?
Products, customers, and where it sits in the AI stack.
What the company does
Makes hard disk drives for data centers and consumers after spinning off its flash business.
Its role in AI
Sells the high-capacity drives hyperscalers use to store the data AI systems train on and generate.
02How much does AI matter to its business?
Partial. One line of business, or an indirect beneficiary.
Why WDC is rated partial
Partial. Western Digital sells hard drives; the cloud end market was 89% of fiscal 2026 revenue and the company frames growth as driven by cloud and AI workloads, but it does not report an AI line and hyperscalers buy drives for everything they store. AI is a demand driver for a product that is not specific to AI.
Reported figures come from the company's own filings and releases. Estimates are third-party or editorial and are kept separate. The exposure label is an editorial judgment.
Reported by the company
- Does not report AI revenue separately. Cloud end market accounted for 89% of net revenue in fiscal 2026; top 10 customers were 73% of revenue (top 3: 16%, 15%, 13%).Source · Fiscal 2026, year ended July 3, 2026
- Q4 FY2026 revenue $3,747 million, up 44% year over year; fiscal 2026 revenue $12,919 million, up 36%.Source · Q4 FY2026, quarter ended July 3, 2026
- Shipped 231 exabytes in Q4 FY2026 (209 EB nearline, 22 EB non-nearline); presentation frames results as 'Growth Driven by Cloud and AI Workloads'.Source · Q4 FY2026, quarter ended July 3, 2026
Estimates
No third-party or editorial estimates are listed for WDC. Only company-reported figures are shown at present.
Key financial metrics, by reporting period
Company-reported, via TradingView03What should visitors watch next?
Earnings, product launches, customer spending, and the risks that matter.
Watch list
- Completion of the redemption of the 3.00% convertible senior notes due 2028 announced September 14, 2026 (8-K item 7.01), and how many holders convert to shares source
- Q1 FY2027 guidance: revenue $4.1 billion +/- $100 million, non-GAAP gross margin 55%-56%, non-GAAP EPS $4.00 +/- $0.15 source
- Ramp of next-gen ePMR drives up to 40TB, which began shipping in Q4 FY2026 source
- Nearline exabyte growth from the 209 EB shipped in Q4 FY2026 source
Growth drivers
- CEO Irving Tan: 'As global data creation continues to accelerate, we enter fiscal year 2027 with continued confidence in the durability of demand' source
- Started shipping next-generation ePMR drives of up to 40TB per drive source
- Company positions itself as building storage infrastructure for the AI-driven data economy, partnering with leading hyperscalers and cloud service providers source
Risks
- Cloud customers accounted for 89% of net revenue and the top 10 customers 73%, so loss of hyperscale customers or shifts in their AI infrastructure investment could severely harm results source
- Trade restrictions, tariffs and geopolitical conflicts could raise manufacturing costs, limit component availability and disrupt logistics networks source
- Failure to develop and commercialize next-generation HDD technologies such as HAMR at required yields and costs could cede share to competitors or alternative storage technologies source
The company's own risk factors: 10-K filed 2026-08-14, Item 1A.
Recent developments: SEC filings
Source: SEC EDGAR · refreshed every 15 min- 10-QQuarterly report2026-10-23documentfolder
- 8-KEarnings release · items 2.02,9.012026-10-22documentfolder
- DEF 14AProxy statement2026-10-05documentfolder
- 8-KCurrent report · items 7.01,8.01,9.012026-09-14documentfolder
- 8-KCurrent report · items 3.02,8.012026-08-26documentfolder
- 10-KAnnual report2026-08-14documentfolder
- 8-KEarnings release · items 2.02,9.012026-08-05documentfolder
- 8-KCurrent report · items 8.012026-06-11documentfolder
- 8-KCurrent report · items 3.02,8.012026-06-03documentfolder
- 8-KCurrent report · items 5.02,7.01,9.012026-05-28documentfolder
- 10-QQuarterly report2026-05-01documentfolder
- 8-KEarnings release · items 2.02,9.012026-04-30documentfolder
Insider trades
Form 4, last 6 filings| Insider | Transaction | Shares | Avg price | Filed |
|---|---|---|---|---|
Cole Martin I Director | Open-market sale · disposed | 4,000 | $395.47 | 2026-10-30 |
Tregillis Cynthia L Chief Legal Officer & Corp Sec | Option exercise · acquired | 14 | — | 2026-10-22 |
Tregillis Cynthia L Chief Legal Officer & Corp Sec | Tax withholding · disposed | 1,310 | $364.32 | 2026-10-22 |
Tregillis Cynthia L Chief Legal Officer & Corp Sec | Open-market sale · disposed | 807 | $380.00 | 2026-10-22 |
Tan Irving Director, Chief Executive Officer | Option exercise · acquired | 57 | — | 2026-09-21 |
Tan Irving Director, Chief Executive Officer | Tax withholding · disposed | 1,091 | $441.36 | 2026-09-21 |
Shihab Ahmed Mohammed Chief Product Officer | Option exercise · acquired | 56 | — | 2026-09-21 |
Shihab Ahmed Mohammed Chief Product Officer | Tax withholding · disposed | 5,150 | $423.87 | 2026-09-21 |
News
WDC in plain answers
The questions readers ask about Western Digital, answered from the company's own filings and this site's research. Each answer names its source.
What does Western Digital (WDC) supply to AI?+
Makes hard disk drives for data centers and consumers after spinning off its flash business. Sells the high-capacity drives hyperscalers use to store the data AI systems train on and generate.
How much does AI matter to Western Digital's business?+
AI exposure is rated partial on this site: One line of business, or an indirect beneficiary. Reported by the company: Does not report AI revenue separately. Cloud end market accounted for 89% of net revenue in fiscal 2026; top 10 customers were 73% of revenue (top 3: 16%, 15%, 13%). Q4 FY2026 revenue $3,747 million, up 44% year over year; fiscal 2026 revenue $12,919 million, up 36%.
Company filing or releaseWhen is Western Digital's next earnings date?+
Western Digital has not announced its next earnings date. Its last earnings release was filed with the SEC on October 22, 2026 (Form 8-K, item 2.02); companies on this list usually announce the next date two to three weeks ahead.
Last earnings release on EDGARAre Western Digital insiders buying or selling WDC stock?+
In the latest Form 4 filings for WDC there are 2 open-market sales, 6 other transactions (grants, option exercises, tax withholding); the most recent was filed on October 30, 2026 by Cole Martin I. Every transaction links to the filing on SEC EDGAR below.
Most recent Form 4What should investors watch for WDC?+
Completion of the redemption of the 3.00% convertible senior notes due 2028 announced September 14, 2026 (8-K item 7.01), and how many holders convert to shares Q1 FY2027 guidance: revenue $4.1 billion +/- $100 million, non-GAAP gross margin 55%-56%, non-GAAP EPS $4.00 +/- $0.15 Ramp of next-gen ePMR drives up to 40TB, which began shipping in Q4 FY2026
SourceWhat are the main risks for Western Digital?+
Cloud customers accounted for 89% of net revenue and the top 10 customers 73%, so loss of hyperscale customers or shifts in their AI infrastructure investment could severely harm results Trade restrictions, tariffs and geopolitical conflicts could raise manufacturing costs, limit component availability and disrupt logistics networks Failure to develop and commercialize next-generation HDD technologies such as HAMR at required yields and costs could cede share to competitors or alternative storage technologies
10-K filed 2026-08-14, Item 1AWhich AI category is WDC in?+
Western Digital is listed under Memory & Storage. Hard disk drives for hyperscale data storage.
Related companies in Memory & Storage
Compare all →Original sources
- Investor relations — earnings dates, releases, presentations
- SEC EDGAR company page — every filing (CIK 0000106040)
- Latest annual report (10-K) — filed 2026-08-14
- TradingView symbol page — full chart and data