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Simcoe Capital Management’s Mattel MAT Stock Holding History

Simcoe Capital Management’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
-2,641,210
Closed -$52.4M – 18
2025
Q4 		$52.4M Buy
2,641,210
+321,315
+14% +$6.21M 9.37% 5
2025
Q3 		$39M Buy
+2,319,895
New +$42.3M 5.66% 8

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

Simcoe Capital Management's MAT Position: Q1 2026 in Review

Simcoe Capital Management sold out of Mattel (MAT) in Q1 2026, closing a stake of 2,641,210 shares — an estimated $52.4M sold.

Simcoe Capital Management first reported a position in MAT in Q3 2025 and held it in 2 quarters. The position peaked at $52.4M in Q4 2025. 430 funds tracked by Wall St. Rank hold MAT as of Q1 2026.

  • Simcoe Capital Management reported no remaining Mattel position as of Q1 2026 after selling out during the quarter.
  • Simcoe Capital Management sold 2,641,210 Mattel shares in Q1 2026, an estimated $52.4M.
  • Simcoe Capital Management first reported a position in Mattel in Q3 2025 and held it in 2 quarters.
  • Simcoe Capital Management's Mattel position peaked at $52.4M in Q4 2025.
  • 430 funds tracked by Wall St. Rank held Mattel as of Q1 2026.

Based on Simcoe Capital Management's 13F filing for Q1 2026, filed 14 May 2026.