Marshall Wace
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Marshall Wace’s Ampco-Pittsburgh AP Stock Holding History

Marshall Wace’s Portfolio AP Stock Details AP Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$695K Sell
80,361
-80,930
-50% -$821K ﹤0.01% 2371
2026
Q1 		$1.08M Sell
161,291
-47,051
-23% -$338K ﹤0.01% 2103
2025
Q4 		$1.11M Buy
+208,342
New +$576K ﹤0.01% 1874

Other funds holding AP

GI
GAMCO Investors Greenwich, Connecticut $11.1B AUM 41.79% 1-Year Est. Return
GF
Gabelli Funds Rye, New York $15.7B AUM 36.4% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Ameriprise
Ameriprise Minneapolis, Minnesota $495B AUM 43.24% 1-Year Est. Return
Wells Fargo
Wells Fargo San Francisco, California $617B AUM 30.33% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Marshall Wace's AP Position: Q2 2026 in Review

Marshall Wace reduced its Ampco-Pittsburgh (AP) stake by 50% in Q2 2026, selling an estimated $821K and leaving 80,361 shares worth $695K. The position accounts for ﹤0.01% of the portfolio, ranked #2371.

Marshall Wace first reported a position in AP in Q4 2025 and has held it in 3 quarters since. The position peaked at $1.11M in Q4 2025. 85 funds tracked by Wall St. Rank hold AP as of Q2 2026.

  • Marshall Wace held 80,361 shares of Ampco-Pittsburgh worth $695K as of Q2 2026.
  • Marshall Wace sold 80,930 Ampco-Pittsburgh shares in Q2 2026, an estimated $821K.
  • Ampco-Pittsburgh made up ﹤0.01% of Marshall Wace's portfolio in Q2 2026, its #2371 holding.
  • Marshall Wace first reported a position in Ampco-Pittsburgh in Q4 2025 and has held it in 3 quarters since.
  • Marshall Wace's Ampco-Pittsburgh position peaked at $1.11M in Q4 2025.
  • 85 funds tracked by Wall St. Rank held Ampco-Pittsburgh as of Q2 2026.

Based on Marshall Wace's 13F filing for Q2 2026, filed 13 Aug 2026.