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ROCKWOOD RESEARCH · A CORPORATE FILINGS WEBSITE|STRAIGHT FROM THE SOURCE · SEC EDGAR|SPONSOREDYour message on this tape — bid on the Rockwood Ad Exchange · Rockwood Ad Exchange|
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WDC

WESTERN DIGITAL CORP

Computer Storage Devices · SIC 3572CIK 106040Held by 14 tracked managersEDGAR filings ↗10-K/10-Q ↗

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14 managers · Q2 2026 13F
Jericho Capital Asset Management
Jericho Capital Asset ManagementPosition history →
3.4%
+10.9%
Robotti & Company Advisors
Robotti & Company AdvisorsPosition history →
2.2%
(53.2%)
Whale Rock Capital Management
Whale Rock Capital ManagementPosition history →
2.1%
(2.7%)
WCM Investment Management
WCM Investment ManagementPosition history →
1.9%
(75.1%)
Capital World Investors
Capital World InvestorsPosition history →
1.3%
+39.7%
Renaissance Technologies
Renaissance TechnologiesPosition history →
0.47%
(53.1%)
Bridgewater Associates
Bridgewater AssociatesPosition history →
0.45%
(30.8%)
Adage Capital Management
Adage Capital ManagementPosition history →
0.28%
+4.7%
Capital Research Global Investors
Capital Research Global InvestorsPosition history →
0.25%
(14.9%)
Tortoise Capital Advisors
Tortoise Capital AdvisorsPosition history →
0.21%
+13.1%
Holocene Advisors
Holocene AdvisorsPosition history →
0.11%
(89.7%)
Infrastructure Capital Advisors
Infrastructure Capital AdvisorsPosition history →
0.02%
NEW
Maverick Capital
Lee AinsliePosition history →
0.01%
NEW
Alps Advisors
Alps AdvisorsPosition history →
0.01%
+80.7%

Weight = position value ÷ the manager's total 13F long-equity value in the same filing — one definition for every row. “1st obs.” marks a position with no earlier stored 13F to compare against — it is not shown as a purchase.