AIM
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Aigen Investment Management’s Mattel MAT Stock Holding History

Aigen Investment 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
2025
Q3 		– Sell
-28,275
Closed -$558K – 963
2025
Q2 		$558K Buy
+28,275
New +$503K 0.08% 374
2025
Q1 		– Sell
-42,731
Closed -$758K – 908
2024
Q4 		$758K Buy
+42,731
New +$808K 0.13% 226
2024
Q3 		– Sell
-36,765
Closed -$598K – 894
2024
Q2 		$598K Buy
+36,765
New +$666K 0.12% 253
2022
Q1 		– Sell
-41,298
Closed -$864K – 865
2021
Q4 		$864K Buy
+41,298
New +$866K 0.05% 464
2020
Q1 		– Sell
-15,463
Closed -$210K – 1435
2019
Q4 		$210K Buy
+15,463
New +$183K 0.03% 530

Other funds holding MAT

EIG
EdgePoint Investment Group Toronto, Ontario, Canada $12.5B AUM 31.7% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $127B AUM 44.11% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
AI
Ariel Investments Chicago, Illinois $8.93B AUM 29.58% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
SAM
Southeastern Asset Management Memphis, Tennessee $2.03B AUM 7.06% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
Franklin Resources
Franklin Resources San Mateo, California $408B AUM 30.18% 1-Year Est. Return

Aigen Investment Management's MAT Position: Q3 2025 in Review

Aigen Investment Management sold out of Mattel (MAT) in Q3 2025, closing a stake of 28,275 shares — an estimated $558K sold.

Aigen Investment Management first reported a position in MAT in Q4 2019 and held it in 5 quarters. The position peaked at $864K in Q4 2021. 439 funds tracked by Wall St. Rank hold MAT as of Q3 2025.

  • Aigen Investment Management reported no remaining Mattel position as of Q3 2025 after selling out during the quarter.
  • Aigen Investment Management sold 28,275 Mattel shares in Q3 2025, an estimated $558K.
  • Aigen Investment Management first reported a position in Mattel in Q4 2019 and held it in 5 quarters.
  • Aigen Investment Management's Mattel position peaked at $864K in Q4 2021.
  • 439 funds tracked by Wall St. Rank held Mattel as of Q3 2025.

Based on Aigen Investment Management's 13F filing for Q3 2025, filed 14 Nov 2025.