Grantham, Mayo, Van Otterloo & Co (GMO)
MAT icon

Grantham, Mayo, Van Otterloo & Co (GMO)’s Mattel MAT Stock Holding History

Grantham, Mayo, Van Otterloo & Co (GMO)’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
Q2 		$3.79M Buy
273,280
+39,855
+17% +$583K 0.01% 363
2026
Q1 		$3.39M Buy
233,425
+93,086
+66% +$1.7M 0.01% 376
2025
Q4 		$2.78M Buy
140,339
+80,260
+134% +$1.55M 0.01% 385
2025
Q3 		$1.01M Buy
60,079
+39,799
+196% +$725K ﹤0.01% 484
2025
Q2 		$400K Buy
+20,280
New +$361K ﹤0.01% 553
2016
Q3 		– Sell
-7,800
Closed -$244K – 563
2016
Q2 		$244K Sell
7,800
-91,845
-92% -$2.91M ﹤0.01% 529
2016
Q1 		$3.35M Sell
99,645
-147,857
-60% -$4.49M 0.01% 333
2015
Q4 		$6.72M Sell
247,502
-214,484
-46% -$5.28M 0.02% 227
2015
Q3 		$9.73M Sell
461,986
-127,508
-22% -$2.98M 0.03% 191
2015
Q2 		$15.1M Buy
589,494
+91,913
+18% +$2.42M 0.05% 157
2015
Q1 		$11.4M Sell
497,581
-719,935
-59% -$19.1M 0.03% 181
2014
Q4 		$37.7M Sell
1,217,516
-1,157,478
-49% -$35.6M 0.1% 107
2014
Q3 		$72.8M Buy
2,374,994
+421,966
+22% +$14.9M 0.19% 87
2014
Q2 		$76.1M Buy
1,953,028
+1,178,528
+152% +$45.7M 0.21% 75
2014
Q1 		$31.1M Buy
774,500
+766,200
+9,231% +$30.4M 0.08% 119
2013
Q4 		$395K Buy
+8,300
New +$370K ﹤0.01% 584

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
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
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
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
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
LSV Asset Management
LSV Asset Management Chicago, Illinois $55.1B AUM 45.38% 1-Year Est. Return

Grantham, Mayo, Van Otterloo & Co (GMO)'s MAT Position: Q2 2026 in Review

Grantham, Mayo, Van Otterloo & Co (GMO) increased its Mattel (MAT) stake by 17% in Q2 2026, buying an estimated $583K and bringing the position to 273,280 shares worth $3.79M. The position accounts for 0.01% of the portfolio, ranked #363.

Grantham, Mayo, Van Otterloo & Co (GMO) first reported a position in MAT in Q4 2013 and has held it in 16 quarters since. The position peaked at $76.1M in Q2 2014. 403 funds tracked by Wall St. Rank hold MAT as of Q2 2026.

  • Grantham, Mayo, Van Otterloo & Co (GMO) held 273,280 shares of Mattel worth $3.79M as of Q2 2026.
  • Grantham, Mayo, Van Otterloo & Co (GMO) bought 39,855 Mattel shares in Q2 2026, an estimated $583K.
  • Mattel made up 0.01% of Grantham, Mayo, Van Otterloo & Co (GMO)'s portfolio in Q2 2026, its #363 holding.
  • Grantham, Mayo, Van Otterloo & Co (GMO) first reported a position in Mattel in Q4 2013 and has held it in 16 quarters since.
  • Grantham, Mayo, Van Otterloo & Co (GMO)'s Mattel position peaked at $76.1M in Q2 2014.
  • 403 funds tracked by Wall St. Rank held Mattel as of Q2 2026.

Based on Grantham, Mayo, Van Otterloo & Co (GMO)'s 13F filing for Q2 2026, filed 13 Aug 2026.