Alyeska Investment Group’s Mattel MAT Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | $67M | Buy |
4,608,679
+1,163,319
| +34% | +$21.2M | 0.19% | 153 |
|
|
2025
Q4 | $68.4M | Buy |
3,445,360
+2,524,123
| +274% | +$48.8M | 0.19% | 146 |
|
|
2025
Q3 | $15.5M | Sell |
921,237
-984,667
| -52% | -$17.9M | 0.05% | 319 |
|
|
2025
Q2 | $37.6M | Buy |
+1,905,904
| New | +$33.9M | 0.13% | 192 |
|
|
2024
Q4 | – | Sell |
-308,960
| Closed | -$5.89M | – | 622 |
|
|
2024
Q3 | $5.89M | Sell |
308,960
-875,281
| -74% | -$16.1M | 0.03% | 334 |
|
|
2024
Q2 | $19.3M | Sell |
1,184,241
-157,415
| -12% | -$2.85M | 0.11% | 214 |
|
|
2024
Q1 | $26.6M | Buy |
1,341,656
+148,137
| +12% | +$2.81M | 0.16% | 183 |
|
|
2023
Q4 | $22.5M | Sell |
1,193,519
-4,069,692
| -77% | -$79.2M | 0.15% | 187 |
|
|
2023
Q3 | $116M | Sell |
5,263,211
-1,113,748
| -17% | -$23.8M | 0.79% | 21 |
|
|
2023
Q2 | $125M | Buy |
6,376,959
+2,243,596
| +54% | +$40.5M | 0.93% | 15 |
|
|
2023
Q1 | $76.1M | Buy |
4,133,363
+2,856,020
| +224% | +$53.1M | 0.67% | 43 |
|
|
2022
Q4 | $22.8M | Sell |
1,277,343
-249,478
| -16% | -$4.52M | 0.24% | 138 |
|
|
2022
Q3 | $28.9M | Sell |
1,526,821
-1,550,807
| -50% | -$34.7M | 0.34% | 98 |
|
|
2022
Q2 | $68.7M | Buy |
3,077,628
+1,169,903
| +61% | +$27.6M | 0.79% | 26 |
|
|
2022
Q1 | $42.4M | Buy |
1,907,725
+1,115,867
| +141% | +$25.5M | 0.47% | 64 |
|
|
2021
Q4 | $17.1M | Buy |
791,858
+448,770
| +131% | +$9.41M | 0.2% | 152 |
|
|
2021
Q3 | $6.37M | Buy |
+343,088
| New | +$7.11M | 0.08% | 274 |
|
|
2021
Q1 | – | Sell |
-947,292
| Closed | -$16.5M | – | 792 |
|
|
2020
Q4 | $16.5M | Buy |
+947,292
| New | +$14M | 0.23% | 131 |
|
|
2019
Q2 | – | Sell |
-233,741
| Closed | -$3.04M | – | 491 |
|
|
2019
Q1 | $3.04M | Buy |
+233,741
| New | +$3.12M | 0.04% | 259 |
|
|
2018
Q4 | – | Sell |
-55,212
| Closed | -$867K | – | 431 |
|
|
2018
Q3 | $867K | Sell |
55,212
-696,551
| -93% | -$11.1M | 0.01% | 357 |
|
|
2018
Q2 | $12.3M | Buy |
751,763
+58,473
| +8% | +$888K | 0.11% | 186 |
|
|
2018
Q1 | $9.12M | Sell |
693,290
-925,244
| -57% | -$14.4M | 0.08% | 241 |
|
|
2017
Q4 | $24.9M | Buy |
+1,618,534
| New | +$25.6M | 0.2% | 132 |
|
|
2016
Q4 | – | Sell |
-932,526
| Closed | -$28.2M | – | 511 |
|
|
2016
Q3 | $28.2M | Buy |
932,526
+149,026
| +19% | +$4.87M | 0.26% | 134 |
|
|
2016
Q2 | $24.5M | Sell |
783,500
-259,930
| -25% | -$8.24M | 0.23% | 155 |
|
|
2016
Q1 | $35.1M | Sell |
1,043,430
-104,383
| -9% | -$3.17M | 0.32% | 120 |
|
|
2015
Q4 | $31.2M | Buy |
+1,147,813
| New | +$28.2M | 0.33% | 115 |
|
Other funds holding MAT
EIG
VCM
VPM
AI
SAM
Alyeska Investment Group's MAT Position: Q1 2026 in Review
Alyeska Investment Group increased its Mattel (MAT) stake by 34% in Q1 2026, buying an estimated $21.2M and bringing the position to 4,608,679 shares worth $67M. The position accounts for 0.19% of the portfolio, ranked #153.
Alyeska Investment Group first reported a position in MAT in Q4 2015 and has held it in 27 quarters since. The position peaked at $125M in Q2 2023. 425 funds tracked by Wall St. Rank hold MAT as of Q1 2026.
- Alyeska Investment Group held 4,608,679 shares of Mattel worth $67M as of Q1 2026.
- Alyeska Investment Group bought 1,163,319 Mattel shares in Q1 2026, an estimated $21.2M.
- Mattel made up 0.19% of Alyeska Investment Group's portfolio in Q1 2026, its #153 holding.
- Alyeska Investment Group first reported a position in Mattel in Q4 2015 and has held it in 27 quarters since.
- Alyeska Investment Group's Mattel position peaked at $125M in Q2 2023.
- 425 funds tracked by Wall St. Rank held Mattel as of Q1 2026.
Based on Alyeska Investment Group's 13F filing for Q1 2026, filed 15 May 2026.