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
2025 Q1	–	Sell	-53,258	Closed	-$944K	–	859
2024 Q4	$944K	Buy	+53,258	New	+$1.01M	0.02%	285
2024 Q3	–	Sell	-16,250	Closed	-$264K	–	626
2024 Q2	$264K	Sell	16,250 -22,575	-58%	-$409K	0.01%	406
2024 Q1	$769K	Sell	38,825 -32,640	-46%	-$618K	0.02%	274
2023 Q4	$1.35M	Buy	+71,465	New	+$1.39M	0.03%	238
2021 Q4	–	Sell	-30,377	Closed	-$564K	–	1473
2021 Q3	$564K	Buy	+30,377	New	+$630K	0.01%	859
2016 Q4	–	Sell	-76,745	Closed	-$2.32M	–	236
2016 Q3	$2.32M	Buy	76,745 +50,835	+196%	+$1.66M	0.03%	163
2016 Q2	$811K	Buy	25,910 +17,107	+194%	+$543K	0.01%	179
2016 Q1	$296K	Buy	+8,803	New	+$267K	﹤0.01%	299
2015 Q2	–	Sell	-300,000	Closed	-$7.9M	–	447
2015 Q1	$6.86M	Buy	+300,000	New	+$7.96M	0.12%	116

Other funds holding MAT

EIG

EdgePoint Investment Group Toronto, Ontario, Canada $13.2B AUM 32.43% 1-Year Est. Return

Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Ariel Investments Chicago, Illinois $10B AUM 42.59% 1-Year Est. Return

State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

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 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.