MF
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Magnetar Financial’s Mattel MAT Stock Holding History

Magnetar Financial’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
2016
Q1 		– Sell
-488,200
Closed -$13.3M – 430
2015
Q4 		$13.3M Hold
488,200
– – 0.16% 82
2015
Q3 		$10.3M Sell
488,200
-11,800
-2% -$276K 0.14% 87
2015
Q2 		$12.8M Sell
500,000
-250,000
-33% -$6.58M 0.18% 108
2015
Q1 		$17.1M Buy
+750,000
New +$19.9M 0.29% 76

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
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 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 $3.38T AUM 44.17% 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
FCM
Frontier Capital Management Boston, Massachusetts $10.7B AUM 67.78% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Magnetar Financial's MAT Position: Q1 2025 in Review

Magnetar Financial sold out of Mattel (MAT) in Q1 2025, closing a stake of 53,258 shares — an estimated $944K sold.

Magnetar Financial first reported a position in MAT in Q1 2015 and held it in 9 quarters. The position peaked at $6.86M in Q1 2015. 448 funds tracked by Wall St. Rank hold MAT as of Q1 2025.

  • Magnetar Financial reported no remaining Mattel position as of Q1 2025 after selling out during the quarter.
  • Magnetar Financial sold 53,258 Mattel shares in Q1 2025, an estimated $944K.
  • Magnetar Financial first reported a position in Mattel in Q1 2015 and held it in 9 quarters.
  • Magnetar Financial's Mattel position peaked at $6.86M in Q1 2015.
  • 448 funds tracked by Wall St. Rank held Mattel as of Q1 2025.

Based on Magnetar Financial's 13F filing for Q1 2025, filed 15 May 2025.