Dark Forest Capital Management’s Mattel MAT Stock Holding History

Dark Forest 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	$1.52M	Buy	+104,923	New	+$1.91M	0.14%	236
2025 Q4	–	Sell	-295,131	Closed	-$4.97M	–	1193
2025 Q3	$4.97M	Buy	295,131 +227,767	+338%	+$4.15M	0.19%	128
2025 Q2	$1.33M	Sell	67,364 -70,486	-51%	-$1.25M	0.05%	639
2025 Q1	$2.68M	Buy	+137,850	New	+$2.73M	0.12%	273
2024 Q4	–	Sell	-14,556	Closed	-$277K	–	1166
2024 Q3	$277K	Buy	+14,556	New	+$268K	0.04%	673
2023 Q2	–	Sell	-2,620	Closed	-$48.2K	–	1244
2023 Q1	$48.2K	Sell	2,620 -3,202	-55%	-$59.5K	0.01%	847
2022 Q4	$104K	Buy	5,822 +5,582	+2,326%	+$101K	0.03%	354
2022 Q3	$5K	Buy	+240	New	+$5.37K	﹤0.01%	900
2022 Q1	–	Sell	-92	Closed	-$2K	–	1567
2021 Q4	$2K	Sell	92 -5,117	-98%	-$107K	﹤0.01%	1297
2021 Q3	$97K	Buy	+5,209	New	+$108K	0.03%	393

Other funds holding MAT

EdgePoint Investment Group Toronto, Ontario, Canada $12.5B AUM 31.7% 1-Year Est. Return

Primecap Management

Primecap Management Pasadena, California $127B AUM 44.11% 1-Year Est. Return

BlackRock New York $5.7T AUM 30.48% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Ariel Investments Chicago, Illinois $8.93B AUM 29.58% 1-Year Est. Return

Southeastern Asset Management Memphis, Tennessee $2.03B AUM 7.06% 1-Year Est. Return

Dimensional Fund Advisors

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

LSV Asset Management

LSV Asset Management Chicago, Illinois $46.4B AUM 27.74% 1-Year Est. Return