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Entropy Technologies’s Mattel MAT Stock Holding History

Entropy Technologies’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
Q2 		$200K Sell
14,407
-59,884
-81% -$876K 0.01% 890
2026
Q1 		$1.08M Buy
74,291
+1,265
+2% +$23K 0.05% 401
2025
Q4 		$1.45M Buy
+73,026
New +$1.41M 0.08% 310

Other funds holding MAT

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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
AI
Ariel Investments Chicago, Illinois $10B AUM 42.59% 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
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
SAM
Southeastern Asset Management Memphis, Tennessee $1.92B AUM 6.41% 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

Entropy Technologies's MAT Position: Q2 2026 in Review

Entropy Technologies reduced its Mattel (MAT) stake by 81% in Q2 2026, selling an estimated $876K and leaving 14,407 shares worth $200K. The position accounts for 0.01% of the portfolio, ranked #890.

Entropy Technologies first reported a position in MAT in Q4 2025 and has held it in 3 quarters since. The position peaked at $1.45M in Q4 2025. 403 funds tracked by Wall St. Rank hold MAT as of Q2 2026.

  • Entropy Technologies held 14,407 shares of Mattel worth $200K as of Q2 2026.
  • Entropy Technologies sold 59,884 Mattel shares in Q2 2026, an estimated $876K.
  • Mattel made up 0.01% of Entropy Technologies's portfolio in Q2 2026, its #890 holding.
  • Entropy Technologies first reported a position in Mattel in Q4 2025 and has held it in 3 quarters since.
  • Entropy Technologies's Mattel position peaked at $1.45M in Q4 2025.
  • 403 funds tracked by Wall St. Rank held Mattel as of Q2 2026.

Based on Entropy Technologies's 13F filing for Q2 2026, filed 13 Aug 2026.