We are live on ! Find out more

Fund managers haven’t disclosed any holdings of MAT yet.

MAT Hedge Fund Activity: Q1 2026 in Review

425 of the 8,125 institutional investors tracked by Wall St. Rank reported a position in Mattel (MAT) for Q1 2026, worth a combined $4.36B — down 30% from $6.19B a quarter earlier.

Sellers outnumbered buyers: 73 funds closed out of MAT and 70 opened new positions — a net loss of 3 holders — while 137 trimmed existing stakes and 138 added.

The largest buyer was Southeastern Asset Management, adding an estimated $77.3M. The largest seller was Franklin Resources, exiting entirely with an estimated $146M sold.

  • 425 institutional investors held Mattel (MAT) as of Q1 2026, down from 441 in Q4 2025.
  • Funds reported $4.36B of Mattel stock for Q1 2026, down 30% quarter-over-quarter.
  • 70 funds opened new Mattel positions in Q1 2026 and 73 closed out, a net change of -3 holders.
  • The largest Mattel buyer in Q1 2026 was Southeastern Asset Management, an estimated $77.3M added.
  • The largest Mattel seller in Q1 2026 was Franklin Resources, an estimated $146M sold.

Based on aggregated 13F filings for Q1 2026.