Capstone Investment Advisors
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Capstone Investment Advisors’s Mattel MAT Stock Holding History

Capstone Investment Advisors’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 		$529K Sell
38,130
-17,823
-32% -$261K ﹤0.01% 1217
2026
Q1 		$813K Buy
+55,953
New +$1.02M ﹤0.01% 931
2024
Q3 		– Sell
-54,022
Closed -$878K – 2090
2024
Q2 		$878K Sell
54,022
-28,917
-35% -$524K ﹤0.01% 1045
2024
Q1 		$1.64M Buy
82,939
+26,157
+46% +$496K 0.01% 878
2023
Q4 		$1.07M Buy
+56,782
New +$1.1M ﹤0.01% 1030
2023
Q3 		– Sell
-44,540
Closed -$870K – 2209
2023
Q2 		$870K Buy
+44,540
New +$805K ﹤0.01% 921
2020
Q1 		– Sell
-5,033
Closed -$68K – 1294
2019
Q4 		$68K Sell
5,033
-3,290
-40% -$39K ﹤0.01% 1322
2019
Q3 		$95K Sell
8,323
-1,558
-16% -$17.8K ﹤0.01% 1285
2019
Q2 		$111K Buy
9,881
+6,864
+228% +$80.6K ﹤0.01% 1309
2019
Q1 		$39K Buy
+3,017
New +$40.3K ﹤0.01% 1237
2018
Q4 		– Sell
-823
Closed -$10.9K – 1323
2018
Q3 		$13K Buy
+823
New +$13.2K ﹤0.01% 1262
2017
Q1 		– Sell
-231,612
Closed -$6.38M – 1022
2016
Q4 		$6.38M Buy
231,612
+181,912
+366% +$5.53M 0.2% 99
2016
Q3 		$1.5M Buy
+49,700
New +$1.62M 0.03% 305
2016
Q2 		– Sell
-59,100
Closed -$1.99M – 790
2016
Q1 		$1.99M Buy
+59,100
New +$1.8M 0.06% 188

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

Capstone Investment Advisors's MAT Position: Q2 2026 in Review

Capstone Investment Advisors reduced its Mattel (MAT) stake by 32% in Q2 2026, selling an estimated $261K and leaving 38,130 shares worth $529K. The position accounts for ﹤0.01% of the portfolio, ranked #1217.

Capstone Investment Advisors first reported a position in MAT in Q1 2016 and has held it in 14 quarters since. The position peaked at $6.38M in Q4 2016. 403 funds tracked by Wall St. Rank hold MAT as of Q2 2026.

  • Capstone Investment Advisors held 38,130 shares of Mattel worth $529K as of Q2 2026.
  • Capstone Investment Advisors sold 17,823 Mattel shares in Q2 2026, an estimated $261K.
  • Mattel made up ﹤0.01% of Capstone Investment Advisors's portfolio in Q2 2026, its #1217 holding.
  • Capstone Investment Advisors first reported a position in Mattel in Q1 2016 and has held it in 14 quarters since.
  • Capstone Investment Advisors's Mattel position peaked at $6.38M in Q4 2016.
  • 403 funds tracked by Wall St. Rank held Mattel as of Q2 2026.

Based on Capstone Investment Advisors's 13F filing for Q2 2026, filed 17 Aug 2026.