Marshall Wace
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Marshall Wace’s Pro-Dex PDEX Stock Holding History

Marshall Wace’s Portfolio PDEX Stock Details PDEX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q1 		– Sell
-9,260
Closed -$433K – 2978
2024
Q4 		$433K Buy
+9,260
New +$377K ﹤0.01% 2094
2019
Q4 		– Sell
-7,689
Closed -$118K – 1979
2019
Q3 		$118K Sell
7,689
-17,556
-70% -$249K ﹤0.01% 1375
2019
Q2 		$328K Buy
+25,245
New +$352K ﹤0.01% 1168

Other funds holding PDEX

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
PAIM
Punch & Associates Investment Management Edina, Minnesota $1.73B AUM 27.65% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Northern Trust
Northern Trust Chicago, Illinois $757B AUM 28.64% 1-Year Est. Return
OSAM
O'Shaughnessy Asset Management Stamford, Connecticut $20.1B AUM 30.42% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

Marshall Wace's PDEX Position: Q1 2025 in Review

Marshall Wace sold out of Pro-Dex (PDEX) in Q1 2025, closing a stake of 9,260 shares — an estimated $433K sold.

Marshall Wace first reported a position in PDEX in Q2 2019 and held it in 3 quarters. The position peaked at $433K in Q4 2024. 42 funds tracked by Wall St. Rank hold PDEX as of Q1 2025.

  • Marshall Wace reported no remaining Pro-Dex position as of Q1 2025 after selling out during the quarter.
  • Marshall Wace sold 9,260 Pro-Dex shares in Q1 2025, an estimated $433K.
  • Marshall Wace first reported a position in Pro-Dex in Q2 2019 and held it in 3 quarters.
  • Marshall Wace's Pro-Dex position peaked at $433K in Q4 2024.
  • 42 funds tracked by Wall St. Rank held Pro-Dex as of Q1 2025.

Based on Marshall Wace's 13F filing for Q1 2025, filed 15 May 2025.