Who owns WDC? 13F holders and whale ownership
WDC is tracked across public portfolios in Whale Analyzer. This page answers who owns WDC, which top funds are buying WDC, aggregate disclosed value, and recent position changes based on public data. NPS Korea is the largest reported holder at $389M; the top five funds control 100.0% of reported ownership; institutions were net selling last quarter (2 increased, 2 reduced); the stock trades above the aggregate whale cost basis of $168.21. Top tracked holders include NPS Korea, Whale Rock Capital, Ray Dalio, and Robert Robotti.
Continue to the live WDC dashboardTop holders
| Investor | Reported value | Shares | Change |
|---|---|---|---|
| NPS Korea 13F portfolio National Pension Service holdings | $389.0M | 1.4M | Reduced |
| Whale Rock Capital 13F portfolio Whale Rock Capital Management holdings | $111.4M | 412.0K | New |
| Ray Dalio 13F portfolio Bridgewater Associates holdings | $67.4M | 249.0K | Increased |
| Robert Robotti 13F portfolio Robotti & Co holdings | $12.6M | 46.5K | Reduced |
Ownership concentration
Reported ownership of WDC is highly concentrated across tracked institutions.
- Single largest holder: 67.0% of reported ownership
- Top 5 holders: 100.0%
- Top 10 holders: 100.0%
Whale activity this quarter
Across 4 tracked institutions, 2 reduced, 2 increased. Net positioning is net selling.
- NPS Korea — National Pension Service ($389.0M) (▼ 15.0% qoq shares) · avg cost $126.98
- Whale Rock Capital — Whale Rock Capital Management ($111.4M) · avg cost $270.49
- Ray Dalio — Bridgewater Associates ($67.4M) (▲ 244.3% qoq shares) · avg cost $237.10
- Robert Robotti — Robotti & Co ($12.6M) (▼ 45.1% qoq shares)
Whale cost basis vs current price
The aggregate tracked cost basis is $168.21 versus a current price of $586.45, so WDC trades above its cost basis (+248.6%). Average unrealized P&L across tracked holders: 142%.
Sector positioning — Information Technology
WDC sits within the Information Technology sector alongside 131 other tracked names. Compare whale ownership across peers:
How to use this page
Values are reported public positions from tracked 13F filers and disclosures — not real-time ownership totals. Open the live WDC dashboard for price charts and cross-investor scans, or read the SEC 13F guide.
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Learn more in Whale Analyzer Academy
Deepen your read on WDC with these Whale Analyzer Academy guides:
Frequently asked questions
Who owns WDC stock?
Whale Analyzer tracks 4 public institutional holders of WDC with a combined reported value of $580.4M. See the holder table above for the largest tracked positions.
Which top funds are buying WDC?
Tracked institutions were net selling last quarter — 2 reduced, 2 increased. Check the "Change" column: "New" = fresh position, "Increased" = added, "Reduced" = trimmed.
How concentrated is WDC ownership?
The top five tracked holders report 100.0% of aggregate ownership.
Is WDC above or below the whale cost basis?
The aggregate tracked cost basis is $168.21 versus a current price of $586.45 (+248.6%).
What does 13F ownership mean for WDC?
Use the interactive WDC dashboard on Whale Analyzer for real-time holder analysis, or read our 13F Alpha Signals Guide.