Rossby Financial
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Rossby Financial’s Western Digital WDC Stock Holding History

Rossby Financial’s Portfolio WDC Stock Details WDC Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q3 		$817K Buy
1,798
+219
+14% +$106K 0.12% 157
2026
Q2 		$1.01M Buy
1,579
+381
+32% +$185K 0.18% 109
2026
Q1 		$357K Buy
1,198
+657
+121% +$172K 0.07% 241
2025
Q4 		$93.2K Buy
541
+530
+4,818% +$80.4K 0.03% 419
2025
Q3 		$1.44K Hold
11
– – ﹤0.01% 1219
2025
Q2 		$704 Buy
+11
New +$524 ﹤0.01% 1166

Other funds holding WDC

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.32T AUM 44.66% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
Amundi
Amundi Paris, France $496B AUM 35.36% 1-Year Est. Return
Nuveen
Nuveen Charlotte, North Carolina $420B AUM 34.97% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $608B AUM 32.77% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return
Exchange Traded Concepts
Exchange Traded Concepts Oklahoma City, Oklahoma $25.3B AUM 51.52% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $765B AUM 28.39% 1-Year Est. Return
Deutsche Bank
Deutsche Bank Frankfurt Am Main Ge, Germany $362B AUM 34.89% 1-Year Est. Return
WCM Investment Management
WCM Investment Management Laguna Beach, California $59.1B AUM 41.96% 1-Year Est. Return

Rossby Financial's WDC Position: Q3 2026 in Review

Rossby Financial increased its Western Digital (WDC) stake by 14% in Q3 2026, buying an estimated $106K and bringing the position to 1,798 shares worth $817K. The position accounts for 0.12% of the portfolio, ranked #157.

Rossby Financial first reported a position in WDC in Q2 2025 and has held it in 6 quarters since. The position peaked at $1.01M in Q2 2026. 1,073 funds tracked by Wall St. Rank hold WDC as of Q3 2026.

  • Rossby Financial held 1,798 shares of Western Digital worth $817K as of Q3 2026.
  • Rossby Financial bought 219 Western Digital shares in Q3 2026, an estimated $106K.
  • Western Digital made up 0.12% of Rossby Financial's portfolio in Q3 2026, its #157 holding.
  • Rossby Financial first reported a position in Western Digital in Q2 2025 and has held it in 6 quarters since.
  • Rossby Financial's Western Digital position peaked at $1.01M in Q2 2026.
  • 1,073 funds tracked by Wall St. Rank held Western Digital as of Q3 2026.

Based on Rossby Financial's 13F filing for Q3 2026, filed 5 Nov 2026.