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AlphaQuest’s Mattel MAT Stock Holding History

AlphaQuest’s Portfolio MAT Stock Details MAT Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		– Sell
-44,944
Closed -$892K – 1183
2025
Q4 		$892K Buy
44,944
+19,617
+77% +$379K 0.05% 487
2025
Q3 		$426K Sell
25,327
-8,160
-24% -$149K 0.03% 902
2025
Q2 		$660K Buy
33,487
+28,705
+600% +$511K 0.06% 475
2025
Q1 		$92.9K Buy
4,782
+551
+13% +$10.9K 0.01% 1326
2024
Q4 		$75K Sell
4,231
-16,770
-80% -$317K 0.01% 1186
2024
Q3 		$400K Sell
21,001
-26,369
-56% -$486K 0.04% 757
2024
Q2 		$770K Buy
47,370
+30,702
+184% +$556K 0.1% 310
2024
Q1 		$330K Sell
16,668
-4,460
-21% -$84.5K 0.06% 496
2023
Q4 		$399K Buy
+21,128
New +$411K 0.08% 426

Other funds holding MAT

EIG
EdgePoint Investment Group Toronto, Ontario, Canada $13.2B AUM 32.43% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
AI
Ariel Investments Chicago, Illinois $10B AUM 42.59% 1-Year Est. Return
SAM
Southeastern Asset Management Memphis, Tennessee $1.92B AUM 6.41% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
LSV Asset Management
LSV Asset Management Chicago, Illinois $55.1B AUM 45.38% 1-Year Est. Return

AlphaQuest's MAT Position: Q1 2026 in Review

AlphaQuest sold out of Mattel (MAT) in Q1 2026, closing a stake of 44,944 shares — an estimated $892K sold.

AlphaQuest first reported a position in MAT in Q4 2023 and held it in 9 quarters. The position peaked at $892K in Q4 2025. 430 funds tracked by Wall St. Rank hold MAT as of Q1 2026.

  • AlphaQuest reported no remaining Mattel position as of Q1 2026 after selling out during the quarter.
  • AlphaQuest sold 44,944 Mattel shares in Q1 2026, an estimated $892K.
  • AlphaQuest first reported a position in Mattel in Q4 2023 and held it in 9 quarters.
  • AlphaQuest's Mattel position peaked at $892K in Q4 2025.
  • 430 funds tracked by Wall St. Rank held Mattel as of Q1 2026.

Based on AlphaQuest's 13F filing for Q1 2026.