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Headlands Technologies’s Mattel MAT Stock Holding History

Headlands Technologies’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 		$481K Buy
+33,088
New +$603K 0.05% 367
2025
Q4 		– Sell
-23,750
Closed -$400K – 789
2025
Q3 		$400K Buy
+23,750
New +$433K 0.03% 410
2025
Q2 		– Sell
-25,946
Closed -$504K – 1400
2025
Q1 		$504K Buy
25,946
+16,694
+180% +$331K 0.06% 287
2024
Q4 		$164K Buy
+9,252
New +$175K 0.02% 564
2024
Q2 		– Sell
-550
Closed -$10.9K – 1424
2024
Q1 		$10.9K Buy
+550
New +$10.4K ﹤0.01% 1017
2023
Q4 		– Sell
-746
Closed -$16.4K – 1156
2023
Q3 		$16.4K Buy
+746
New +$15.9K 0.01% 624

Other funds holding MAT

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

Headlands Technologies's MAT Position: Q1 2026 in Review

Headlands Technologies opened a new position in Mattel (MAT) in Q1 2026: 33,088 shares worth $481K. The stake represents 0.05% of the portfolio and ranks #367 among its holdings. This is a return to the name: Headlands Technologies previously reported a position in MAT as recently as Q3 2025.

Headlands Technologies first reported a position in MAT in Q3 2023 and has held it in 6 quarters since. The position peaked at $504K in Q1 2025. 425 funds tracked by Wall St. Rank hold MAT as of Q1 2026.

  • Headlands Technologies held 33,088 shares of Mattel worth $481K as of Q1 2026.
  • Mattel was a new Headlands Technologies position in Q1 2026.
  • Mattel made up 0.05% of Headlands Technologies's portfolio in Q1 2026, its #367 holding.
  • Headlands Technologies first reported a position in Mattel in Q3 2023 and has held it in 6 quarters since.
  • Headlands Technologies's Mattel position peaked at $504K in Q1 2025.
  • 425 funds tracked by Wall St. Rank held Mattel as of Q1 2026.

Based on Headlands Technologies's 13F filing for Q1 2026, filed 13 May 2026.