Millennium Management’s Mattel MAT Stock Holding History

Millennium 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	$21.8M	Buy	+1,500,000	New	+$27.3M	0.01%	1476
2025 Q2	–	Sell	-33,900	Closed	-$659K	–	6152
2025 Q1	$659K	Buy	33,900 +6,600	+24%	+$131K	﹤0.01%	4643
2024 Q4	$484K	Buy	27,300 +9,200	+51%	+$174K	﹤0.01%	4773
2024 Q3	$345K	Buy	+18,100	New	+$334K	﹤0.01%	5108
2019 Q2	–	Sell	-600,000	Closed	-$7.8M	–	4300
2019 Q1	$7.8M	Buy	600,000 +355,400	+145%	+$4.75M	0.01%	1441
2018 Q4	$2.44M	Buy	+244,600	New	+$3.24M	﹤0.01%	2076
2017 Q4	–	Sell	-100,000	Closed	-$1.55M	–	3963
2017 Q3	$1.55M	Buy	+100,000	New	+$1.79M	﹤0.01%	2293
2015 Q1	–	Sell	-9,000	Closed	-$279K	–	3893
2014 Q4	$279K	Buy	+9,000	New	+$277K	﹤0.01%	3398

Other funds holding MAT

EIG

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

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

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

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

SAM

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

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

Millennium Management's MAT Position: Q1 2026 in Review

Millennium Management increased its Mattel (MAT) stake by 25% in Q1 2026, buying an estimated $10.3M and bringing the position to 2,801,135 shares worth $40.7M. The position accounts for 0.02% of the portfolio, ranked #986.

Millennium Management first reported a position in MAT in Q2 2013 and has held it in 46 quarters since. The position peaked at $68M in Q1 2015. 425 funds tracked by Wall St. Rank hold MAT as of Q1 2026.

Millennium Management held 2,801,135 shares of Mattel worth $40.7M as of Q1 2026.
Millennium Management bought 567,150 Mattel shares in Q1 2026, an estimated $10.3M.
Mattel made up 0.02% of Millennium Management's portfolio in Q1 2026, its #986 holding.
Millennium Management first reported a position in Mattel in Q2 2013 and has held it in 46 quarters since.
Millennium Management's Mattel position peaked at $68M in Q1 2015.
425 funds tracked by Wall St. Rank held Mattel as of Q1 2026.

Based on Millennium Management's 13F filing for Q1 2026, filed 15 May 2026.