Mattel
430 hedge funds and large institutions have $4.36B invested in Mattel in 2026 Q1 according to their latest regulatory filings, with 73 funds opening new positions, 138 increasing their positions, 138 reducing their positions, and 75 closing their positions.
0% more repeat investments, than reductions
Existing positions increased: 138 | Existing positions reduced: 138
0.91% less ownership
Funds ownership: 100.04% → 99.13% (-0.91%)
3% less first-time investments, than exits
New positions opened: 73 | Existing positions closed: 75
2% less funds holding
Funds holding: 441 → 430 (-11)
30% less capital invested
Capital invested by funds: $6.19B → $4.36B (-$1.83B)
40% less funds holding in top 10
Funds holding in top 10: 5 → 3 (-2)
57% less call options, than puts
Call options by funds: $13.8M | Put options by funds: $31.9M
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
SAM
Southeastern Asset Management
Memphis,
Tennessee
|
+$77.3M |
| 2 |
Marshall Wace
London,
United Kingdom
|
+$67.7M |
| 3 |
LFCM
Long Focus Capital Management
San Juan,
Puerto Rico
|
+$35M |
| 4 |
EIG
EdgePoint Investment Group
Toronto,
Ontario, Canada
|
+$32.8M |
| 5 |
D.E. Shaw & Co
New York
|
+$27.6M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Franklin Resources
San Mateo,
California
|
-$146M |
| 2 |
Massachusetts Financial Services
Boston,
Massachusetts
|
-$107M |
| 3 |
PCM
Patient Capital Management
Baltimore,
Maryland
|
-$55.4M |
| 4 |
SCM
Simcoe Capital Management
New York
|
-$52.4M |
| 5 |
FCM
Frontier Capital Management
Boston,
Massachusetts
|
-$46M |
MAT Hedge Fund Activity: Q1 2026 in Review
430 of the 8,187 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: 75 funds closed out of MAT and 73 opened new positions — a net loss of 2 holders — while 138 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.
- 430 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.
- 73 funds opened new Mattel positions in Q1 2026 and 75 closed out, a net change of -2 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.