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Dmitry Balyasny’s Mattel MAT Stock Holding History

Dmitry Balyasny’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
2021
Q4 		– Sell
-149,400
Closed -$2.77M – 2467
2021
Q3 		$2.77M Buy
+149,400
New +$3.1M 0.01% 1021
2020
Q3 		– Sell
-251,700
Closed -$2.43M – 1468
2020
Q2 		$2.43M Hold
251,700
– – 0.02% 682
2020
Q1 		$2.22M Buy
+251,700
New +$3.09M 0.03% 603
2018
Q3 		– Sell
-180,000
Closed -$2.96M – 1887
2018
Q2 		$2.96M Sell
180,000
-345,000
-66% -$5.24M 0.01% 813
2018
Q1 		$6.9M Sell
525,000
-1,569,800
-75% -$24.5M 0.03% 619
2017
Q4 		$32.2M Buy
2,094,800
+1,994,800
+1,995% +$31.6M 0.1% 267
2017
Q3 		$1.55M Buy
+100,000
New +$1.79M 0.01% 1033
2014
Q3 		– Sell
-100,000
Closed -$3.9M – 802
2014
Q2 		$3.9M Buy
+100,000
New +$3.88M 0.04% 426

Other funds holding MAT

EIG
EdgePoint Investment Group Toronto, Ontario, Canada $13.2B AUM 32.43% 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 $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
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
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
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
Franklin Resources
Franklin Resources San Mateo, California $462B AUM 39.16% 1-Year Est. Return

Dmitry Balyasny's MAT Position: Q3 2025 in Review

Dmitry Balyasny sold out of Mattel (MAT) in Q3 2025, closing a stake of 1,129,370 shares — an estimated $22.3M sold.

Dmitry Balyasny first reported a position in MAT in Q4 2015 and held it in 24 quarters. The position peaked at $77.2M in Q2 2022. 439 funds tracked by Wall St. Rank hold MAT as of Q3 2025.

  • Dmitry Balyasny reported no remaining Mattel position as of Q3 2025 after selling out during the quarter.
  • Dmitry Balyasny sold 1,129,370 Mattel shares in Q3 2025, an estimated $22.3M.
  • Dmitry Balyasny first reported a position in Mattel in Q4 2015 and held it in 24 quarters.
  • Dmitry Balyasny's Mattel position peaked at $77.2M in Q2 2022.
  • 439 funds tracked by Wall St. Rank held Mattel as of Q3 2025.

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