Stocks › WDC
WESTERN DIGITAL CORP
WDC·Nasdaq·
United States·USD
United States·USD$411.04
-30.60 (-6.93%)
Close · Oct 6, 2026 · Close Prices from Tiingo.com
WDC
WESTERN DIGITAL CORP · Nasdaq
Nasdaq 100S&P 500
Filings
Default90D1Y5YALL
WDCS&P 500 (rebased)
Congress BuyCongress SellInsider BuyInsider SellForm 1448-K ResultsLobbying
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Daily closes, adjusted for splits and dividends · Close Prices from Tiingo.comHover a marker, every one is a filing · move across the line for the crosshair
Congressional Trades
Recent trades of WDC by members of U.S. Congress · 131 on record · 6 in the last 12 months
Whale Activity
Position changes in WDC reported for 2026-06-30 by 59 tracked institutional filers
- Increased4
- New2
- Held0
- Decreased10
- Closed0
- No prior filing43
| Filer | Shares | Value | Change |
|---|---|---|---|
| BlackRock, Inc. | 33.0M | $21.05B | decreased |
| FMR LLC | 26.0M | $16.60B | — |
| VANGUARD CAPITAL MANAGEMENT LLC | 22.5M | $14.38B | increased |
| JPMORGAN CHASE & CO | 17.0M | $11.09B | — |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 13.1M | $8.37B | decreased |
| GOLDMAN SACHS GROUP INC | 5.2M | $3.31B | — |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 4.7M | $3.03B | — |
| TWO SIGMA INVESTMENTS, LP | 89.0M | $1.50B | decreased |
| CAPSTONE INVESTMENT ADVISORS, LLC | 80.5M | $1.36B | — |
| D. E. Shaw & Co., Inc. | 1.9M | $1.21B | decreased |
| MILLENNIUM MANAGEMENT LLC | 58.0M | $980.0M | decreased |
| HSBC HOLDINGS PLC | 1.2M | $752.8M | — |
KeyVex tracks a curated set of large 13F filers plus the largest positions in recent filings, so this is a sample of institutional activity, not the whole market.
Insider Trading
Net shares bought (+) or sold (−) on the open market by WDC insiders, by quarter · Form 4
Recent Insider Transactions
3,010 transactions on record · newest first
| Insider | Type | Shares | Price | Value | Date | |
|---|---|---|---|---|---|---|
| Tregillis Cynthia LChief Legal Officer & Corp Sec | Sale | −432 | $451.20 | $195K | Sep 4, 2026 | Form 4 ↗ |
| Gubbi Vidyadhara KChief of Global Operations | Sale | −1,795 | $459.87 | $825K | Sep 4, 2026 | Form 4 ↗ |
| STREETER STEPHANIE ADirector · Director | Sale | −1,600 | $455.00 | $728K | Sep 1, 2026 | Form 4 ↗ |
| STREETER STEPHANIE ADirector · Director | Sale | −2,000 | $448.58 | $897K | Aug 31, 2026 | Form 4 ↗ |
| STREETER STEPHANIE ADirector · Director | Sale | −2,000 | $447.06 | $894K | Aug 31, 2026 | Form 4 ↗ |
| Tregillis Cynthia LChief Legal Officer & Corp Sec | Sale | −1,007 | $478.36 | $482K | Aug 27, 2026 | Form 4 ↗ |
| Tregillis Cynthia LChief Legal Officer & Corp Sec | Sale | −476 | $450.78 | $215K | Aug 26, 2026 | Form 4 ↗ |
| Tregillis Cynthia LChief Legal Officer & Corp Sec | Sale | −684 | $446.17 | $305K | Aug 24, 2026 | Form 4 ↗ |
| Tregillis Cynthia LChief Legal Officer & Corp Sec | Sale | −235 | $477.27 | $112K | Aug 21, 2026 | Form 4 ↗ |
| Tan IrvingChief Executive Officer · Director | Sale | −989 | $442.22 | $437K | Aug 11, 2026 | Form 4 ↗ |
| Tan IrvingChief Executive Officer · Director | Sale | −6,445 | $446.38 | $2.9M | Aug 11, 2026 | Form 4 ↗ |
| Tan IrvingChief Executive Officer · Director | Sale | −4,822 | $445.45 | $2.1M | Aug 11, 2026 | Form 4 ↗ |
| Tan IrvingChief Executive Officer · Director | Sale | −2,478 | $441.48 | $1.1M | Aug 11, 2026 | Form 4 ↗ |
| Tan IrvingChief Executive Officer · Director | Sale | −1,880 | $444.67 | $836K | Aug 11, 2026 | Form 4 ↗ |
| Tan IrvingChief Executive Officer · Director | Sale | −1,840 | $443.35 | $816K | Aug 11, 2026 | Form 4 ↗ |
| Tan IrvingChief Executive Officer · Director | Sale | −1,546 | $447.18 | $691K | Aug 11, 2026 | Form 4 ↗ |
| Cole Martin IDirector · Director | Sale | −32 | $465.12 | $15K | Jul 28, 2026 | Form 4 ↗ |
| Cole Martin IDirector · Director | Sale | −160 | $462.30 | $74K | Jul 28, 2026 | Form 4 ↗ |
| Cole Martin IDirector · Director | Sale | −96 | $440.96 | $42K | Jul 28, 2026 | Form 4 ↗ |
| Cole Martin IDirector · Director | Sale | −93 | $429.12 | $40K | Jul 28, 2026 | Form 4 ↗ |
Fund Holders
Mutual funds and ETFs holding WDC · SEC Form N-PORT
| Fund | Shares | Value | % of fund | As of |
|---|---|---|---|---|
| VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS | 10.9M | $6.99B | 0.30% | Jun 30, 2026 |
| VANGUARD 500 INDEX FUND VANGUARD INDEX FUNDS | 8.9M | $5.71B | 0.34% | Jun 30, 2026 |
| Invesco QQQ Trust, Series 1 | 7.3M | $4.67B | 0.95% | Jun 30, 2026 |
| iShares Core S&P 500 ETF iShares Trust | 4.7M | $3.03B | 0.34% | Jun 30, 2026 |
| American Funds Fundamental Investors | 4.4M | $2.84B | 1.57% | Jun 30, 2026 |
| State Street(R) SPDR(R) S&P 500(R) ETF Trust | 4.2M | $2.67B | 0.34% | Jun 30, 2026 |
| American Balanced Fund | 3.9M | $2.49B | 0.87% | Jun 30, 2026 |
| JPMorgan Large Cap Growth Fund JPMorgan Trust II | 3.8M | $2.45B | 2.01% | Jun 30, 2026 |
| VANGUARD MID-CAP INDEX FUND VANGUARD INDEX FUNDS | 3.7M | $2.39B | 1.06% | Jun 30, 2026 |
| VANGUARD GROWTH INDEX FUND VANGUARD INDEX FUNDS | 3.7M | $2.35B | 0.62% | Jun 30, 2026 |
Mutual funds and ETFs whose N-PORT filings list WDC's shares (CUSIP 958102105), each fund at its latest report since Mar 7, 2026, largest positions first. Bonds, options and short positions are left out.
Activist & Passive Stakes
Schedule 13D / 13G beneficial-ownership filings
- Abigail P. JohnsonSCHEDULE 13G/A · passive (13G) · 26.4M shares7.2%
Aug 6, 2026 · ↗ - FMR LLCSCHEDULE 13G/A · passive (13G) · 26.4M shares7.2%
Aug 6, 2026 · ↗ - Vanguard Portfolio ManagementSCHEDULE 13G/A · passive (13G) · 13.2M shares3.6%
Jul 31, 2026 · ↗ - JPMORGAN CHASE & CO.SCHEDULE 13G/A · passive (13G) · 18.5M shares5.3%
Apr 22, 2025 · ↗ - JPMORGAN CHASE & CO.SCHEDULE 13G/A · passive (13G) · 23.3M shares6.7%
Feb 12, 2025 · ↗
Corporate Lobbying
Estimated quarterly lobbying spending reported under the LDA, filings naming western digital as client
- WESTERN DIGITAL CORPORATIONWESTERN DIGITAL CORPORATION · 2026 Q2 · TAX, NAT, GOV$290K
Filing ↗ - FORBES-TATEWESTERN DIGITAL · 2026 Q2 · BUD, TRD, NAT$50K
Filing ↗ - J.A. GREEN AND COMPANYWESTERN DIGITAL · 2026 Q2$60K
Filing ↗ - POLARIS GOVERNMENT RELATIONS, LLCWESTERN DIGITAL TECHNOLOGIES INC. · 2026 Q2 · TRD$50K
Filing ↗ - J.A. GREEN AND COMPANYWESTERN DIGITAL · 2026 Q1$60K
Filing ↗
Government Contracts
Federal awards to WESTERN DIGITAL CORP · USAspending
No federal contract awards found for WESTERN DIGITAL CORP.
U.S. Patents
Recent USPTO applications naming WESTERN DIGITAL CORP
No USPTO patent applications found for WESTERN DIGITAL CORP.
Annual Financials
From WDC's 10-K filings · XBRL
No annual XBRL figures on record for WDC. KeyVex's fundamentals cover about 130 large companies so far.
Stock Splits
Every split and reverse split in the price history
- 37-for-28Stock splitFeb 24, 2025
- 2-for-1Stock splitJun 4, 1997
Split dates and ratios from the price history · Close Prices from Tiingo.com
Material Events (8-K)
Corporate events filed with the SEC
- 8-K · Items 7.01, 8.01, 9.01Reg FD disclosure · Other eventsSep 14, 2026
EDGAR ↗ - 8-K/A · Items 3.02Unregistered sale of equityAug 27, 2026
EDGAR ↗ - 8-K · Items 3.02, 8.01Unregistered sale of equity · Other eventsAug 26, 2026
EDGAR ↗ - 8-K · Items 2.02, 9.01Results of operationsAug 5, 2026
EDGAR ↗ - 8-K · Items 8.01Other eventsJun 11, 2026
EDGAR ↗ - 8-K/A · Items 3.02Unregistered sale of equityJun 8, 2026
EDGAR ↗ - 8-K · Items 3.02, 8.01Unregistered sale of equity · Other eventsJun 3, 2026
EDGAR ↗ - 8-K · Items 5.02, 7.01, 9.01Officer / director change · Reg FD disclosureMay 28, 2026
EDGAR ↗
About WESTERN DIGITAL CORP
From SEC EDGAR company records
General Western Digital was founded in 1970 and is a Standard & Poor’s 500 (“S&P 500”) company headquartered in San Jose, California. We are a leading developer, manufacturer, and provider of data storage devices and solutions based on hard disk drive (“HDD”) technology. HDDs are critical components in the worldwide data infrastructure market, powering the AI-driven digital economy. HDDs provide reliable, cost-effective, high-capacity storage needs for a wide range of applications, ranging from cloud data centers, enterprise storage systems, edge computing, and smart video to client and consumer devices. At Western Digital, we believe that data storage provides the strategic foundation for t…
Industry (SIC 3572)Computer Storage Devices
SectorTechnology
HeadquartersSAN JOSE, CA
IncorporatedDE
SEC CIK0000106040 ↗