WESTERN DIGITAL CORP
CUSIP 958102AT2
Western Digital Corp has 2 institutional holders in Filings Flow’s 13F database, together reporting 1487.44M shares worth $10.4B as of Q1 2026. The largest reported holders are Millennium Management LLC, Whitebox Advisors LLC, and D. E. Shaw & Co., Inc..
Institutional Holders
2
Q1 2026
Reported Value
$7M
Ticker
unmapped
private placement or foreign
Quarters Tracked
3
Ownership Trend
Institutional holders
Total reported value
Holders
Mixed quarters
| Manager | % of Portfolio | Value | Shares | Quarter |
|---|---|---|---|---|
| WHITEBOX ADVISORS LLC$8.1B AUM | 18.01% | $1.5B | 204.40M | Q1 2026OLDER |
| Boussard & Gavaudan Investment Management LLP$1.1B AUM | 17.57% | $186M | 27.4K | Q1 2026OLDER |
| Aequim Alternative Investments LP$5.2B AUM | 7.71% | $397M | 55.50M | Q1 2026OLDER |
| Sculptor Capital LP$9.6B AUM | 5.23% | $502M | 70.00M | Q1 2026OLDER |
| MACKAY SHIELDS LLC$2.7B AUM | 4.06% | $111M | 15.48M | Q1 2026OLDER |
| SSI INVESTMENT MANAGEMENT LLC$1.4B AUM | 3.86% | $56M | 7.83M | Q1 2026OLDER |
| SILVERBACK ASSET MANAGEMENT LLC$699M AUM | 3.29% | $34M | 10.70M | Q3 2025OLDER |
| Warberg Asset Management LLC$600M AUM | 3.16% | $26M | 5.73M | Q4 2025OLDER |
| CAMDEN ASSET MANAGEMENT L P /CA$2.9B AUM | 2.60% | $118M | 36.77M | Q3 2025OLDER |
| Opti Capital Management, LP$1.4B AUM | 2.21% | $35M | 11.00M | Q3 2025OLDER |
| K2 PRINCIPAL FUND, L.P.$1.4B AUM | 1.95% | $24M | 7.5K | Q3 2025OLDER |
| Calamos Advisors LLC$28.2B AUM | 1.41% | $399M | 55.62M | Q1 2026OLDER |
| ADVENT CAPITAL MANAGEMENT /DE/$3.6B AUM | 1.09% | $39M | 5.50M | Q1 2026OLDER |
| Alberta Investment Management Corp$16.7B AUM | 1.08% | $179M | 25.00M | Q1 2026OLDER |
| CAPSTONE INVESTMENT ADVISORS, LLC$57.4B AUM | 1.00% | $577M | 80.50M | Q1 2026OLDER |
| VOYA INVESTMENT MANAGEMENT LLC$96.1B AUM | 0.94% | $899M | 125.52M | Q1 2026OLDER |
| Ares Systematic Credit Ltd$123M AUM | 0.75% | $918,027 | 200.0K | Q1 2026OLDER |
| LINDEN ADVISORS LP$17.9B AUM | 0.73% | $119M | 25.87M | Q4 2025OLDER |
| D. E. Shaw & Co., Inc.$166.3B AUM | 0.66% | $1.1B | 152.58M | Q1 2026OLDER |
| Virtus Fixed Income Advisers, LLC$123M AUM | 0.63% | $765,927 | 107.0K | Q1 2026OLDER |
| MILLENNIUM MANAGEMENT LLC$240.3B AUM | 0.61% | $1.5B | 205.55M | Q1 2026OLDER |
| KIM, LLC$976M AUM | 0.56% | $7M | 1.50M | Q4 2025OLDER |
| TWO SIGMA INVESTMENTS, LP$123.9B AUM | 0.52% | $639M | 89.23M | Q1 2026OLDER |
| Situational Awareness LP$13.7B AUM | 0.44% | $18M | 152.8K | Q3 2025OLDER |
| Nicholas Investment Partners, LP$1.4B AUM | 0.42% | $6M | 815.0K | Q1 2026OLDER |
| BANK OF NOVA SCOTIA$57.2B AUM | 0.38% | $217M | 30.34M | Q1 2026OLDER |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND$62.2B AUM | 0.37% | $229M | 32.00M | Q1 2026OLDER |
| Central Pacific Bank - Trust Division$984M AUM | 0.29% | $3M | 167.0K | Q2 2026 |
| ARISTEIA CAPITAL, L.L.C.$4.8B AUM | 0.23% | $10M | 3.00M | Q3 2025OLDER |
| PALISADE CAPITAL MANAGEMENT, LP$3.0B AUM | 0.13% | $5M | 989.0K | Q4 2025OLDER |
| Universal- Beteiligungs- und Servicegesellschaft mbH$58.1B AUM | 0.11% | $66M | 9.17M | Q1 2026OLDER |
| CITADEL ADVISORS LLC$618.5B AUM | 0.11% | $697M | 97.27M | Q1 2026OLDER |
| PICTON MAHONEY ASSET MANAGEMENT$13.5B AUM | 0.11% | $14M | 2.00M | Q1 2026OLDER |
| BANK OF MONTREAL /CAN/$268.5B AUM | 0.08% | $225M | 31.41M | Q1 2026OLDER |
| BNP PARIBAS FINANCIAL MARKETS$205.8B AUM | 0.06% | $115M | 16.07M | Q1 2026OLDER |
| VIRTUS ADVISERS, LLC$215M AUM | 0.05% | $114,531 | 16.0K | Q1 2026OLDER |
| Calamos Wealth Management LLC$2.9B AUM | 0.03% | $753,134 | 105.0K | Q1 2026OLDER |
| Kohlberg Kravis Roberts & Co. L.P.$5.3B AUM | 0.02% | $1M | 180.0K | Q1 2026OLDER |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main$112.7B AUM | 0.02% | $26M | 3.65M | Q1 2026OLDER |
| BNP Paribas Asset Management Holding S.A.$86.1B AUM | 0.02% | $17M | 2.40M | Q1 2026OLDER |
| NOMURA HOLDINGS INC$37.7B AUM | 0.02% | $7M | 27.6K | Q1 2026OLDER |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE$116.3B AUM | 0.02% | $18M | 2.55M | Q1 2026OLDER |
| Balboa Wealth Partners$596M AUM | 0.01% | $78,650 | 11.0K | Q1 2026OLDER |
| AMERIPRISE FINANCIAL INC$431.8B AUM | 0.01% | $50M | 7.00M | Q1 2026OLDER |
| MACQUARIE GROUP LTD$16.8B AUM | 0.01% | $8M | 3.27M | Q3 2025OLDER |
| AQR Arbitrage LLC$6.1B AUM | 0.01% | $537,146 | 75.0K | Q1 2026OLDER |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC.$58.4B AUM | 0.01% | $5M | 718.0K | Q1 2026OLDER |
| Nuveen, LLC$369.3B AUM | 0.01% | $32M | 4.45M | Q1 2026OLDER |
| STATE STREET CORP$2.90T AUM | 0.01% | $245M | 34.15M | Q1 2026OLDER |
| FIFTH THIRD BANCORP$54.7B AUM | 0.01% | $3M | 8.0K | Q3 2025OLDER |
| FMR LLC$1.90T AUM | 0.01% | $142M | 19.91M | Q1 2026OLDER |
| WESTWOOD HOLDINGS GROUP INC$13.7B AUM | 0.01% | $800,000 | 800.0K | Q4 2025OLDER |
| OPPENHEIMER ASSET MANAGEMENT INC.$8.8B AUM | 0.01% | $472,441 | 66.0K | Q1 2026OLDER |
| LOOMIS SAYLES & CO L P$74.3B AUM | 0.01% | $4M | 14.8K | Q1 2026OLDER |
| LAZARD ASSET MANAGEMENT LLC$60.8B AUM | 0.01% | $3M | 44.17M | Q1 2026OLDER |
| VICTORY CAPITAL MANAGEMENT INC$156.1B AUM | 0.00% | $7M | 1.00M | Q1 2026OLDER |
| CITIGROUP INC$234.5B AUM | 0.00% | $10M | 1.44M | Q1 2026OLDER |
| FRANKLIN RESOURCES INC$408.3B AUM | 0.00% | $17M | 2.41M | Q1 2026OLDER |
| BlackRock, Inc.$5.72T AUM | 0.00% | $190M | 26.50M | Q1 2026OLDER |
| JANE STREET GROUP, LLC$777.2B AUM | 0.00% | $26M | 3.60M | Q1 2026OLDER |
| Russell Investments Group, Ltd.$93.1B AUM | 0.00% | $3M | 380.0K | Q1 2026OLDER |
| STEPHENS INC /AR/$8.0B AUM | 0.00% | $143,164 | 20.0K | Q1 2026OLDER |
| SUSQUEHANNA ADVISORS GROUP, INC.$3.0B AUM | 0.00% | $112,197 | 3.50M | Q3 2025OLDER |
| Invesco Ltd.$653.3B AUM | 0.00% | $11M | 1.50M | Q1 2026OLDER |
| Stonegate Investment Group, LLC$4.3B AUM | 0.00% | $57,735 | 18.0K | Q3 2025OLDER |
| GOLDMAN SACHS GROUP INC$870.9B AUM | 0.00% | $8M | 2.37M | Q3 2025OLDER |
| WELLS FARGO & COMPANY/MN$530.3B AUM | 0.00% | $5M | 649.0K | Q2 2026 |
| SEI INVESTMENTS CO$108.4B AUM | 0.00% | $858,984 | 120.0K | Q1 2026OLDER |
| JPMORGAN CHASE & CO$1.56T AUM | 0.00% | $12M | 1.80M | Q1 2026OLDER |
| NewEdge Advisors, LLC$27.7B AUM | 0.00% | $15,000 | 15.0K | Q1 2026OLDER |
| Bank of New York Mellon Corp$543.9B AUM | 0.00% | $4M | 490.0K | Q1 2026OLDER |
| CoreCap Advisors, LLC$3.4B AUM | 0.00% | $18,354 | 4.0K | Q4 2025OLDER |
| Capital World Investors$732.9B AUM | 0.00% | $4M | 490.0K | Q1 2026OLDER |
| MORGAN STANLEY$1.67T AUM | 0.00% | $6M | 1.37M | Q1 2026OLDER |
| WELLINGTON MANAGEMENT GROUP LLP$535.5B AUM | 0.00% | $2M | 228.0K | Q1 2026OLDER |
| MML INVESTORS SERVICES, LLC$36.1B AUM | 0.00% | $100,215 | 14.0K | Q1 2026OLDER |
| BARCLAYS PLC$416.3B AUM | 0.00% | $948,642 | 528.0K | Q4 2025OLDER |
| ROYAL BANK OF CANADA$570.1B AUM | 0.00% | $1M | 155.0K | Q1 2026OLDER |
| UBS Group AG$666.3B AUM | 0.00% | $851,826 | 119.0K | Q1 2026OLDER |
| Amundi$367.1B AUM | 0.00% | $17,180 | 2.40M | Q1 2026OLDER |
| BANK OF AMERICA CORP /DE/$1.37T AUM | 0.00% | $22,919 | 5.0K | Q4 2025OLDER |
Holdings are reported up to 45 days after quarter end. Share counts are as filed and not adjusted for stock splits.