MATTEL INC (MAT) Institutional Shareholders
MATTEL INC (MAT) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $4.23B in MAT holdings during the latest filing period.
Edgepoint Investment Group Inc. is currently the largest disclosed institutional shareholder of MAT tracked by InsiderSet, reporting ownership valued at approximately $708.54M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $679.44M, representing an estimated loss of -4.11% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 62% of the total disclosed MAT value among the investors covered in this analysis. Major shareholders include Edgepoint Investment Group Inc., Primecap Management Co/Ca/, Blackrock, Inc., and several other long-term asset managers with concentrated positions in MATTEL INC (MAT).
This page ranks the largest institutional MAT shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
389
Total Reported Value
$4.23B
Largest Holder
Edgepoint Investment Group Inc.
Largest Position
$708.54M
Insider Transactions (90d)
1
Latest Filing Quarter
Q2 2026
New Institutional Positions
37
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Edgepoint Investment Group Inc. | 5.35% | 51,047,454 | $708,538,662 | $679,441,613 | -$29,097,049 | -4.11% | |
| Primecap Management Co/Ca/ | 0.24% | 29,505,735 | $409,539,602 | $392,721,333 | -$16,818,269 | -4.11% | |
| Blackrock, Inc. | 0.01% | 26,172,377 | $363,272,592 | $348,354,338 | -$14,918,254 | -4.11% | |
| Ariel Appreciation Fund | John W. Rogers Jr. | 2.13% | 15,415,955 | $213,973,455 | $205,186,361 | -$8,787,094 | -4.11% |
| Vanguard Capital Management Llc | 0.00% | 13,168,755 | $182,782,319 | $175,276,129 | -$7,506,190 | -4.11% | |
| Vanguard Portfolio Management Llc | 0.01% | 13,127,051 | $182,203,468 | $174,721,049 | -$7,482,419 | -4.11% | |
| Dimensional Fund Advisors Lp | 0.03% | 12,592,950 | $174,781,162 | $167,612,165 | -$7,168,998 | -4.10% | |
| Longleaf Partners | Mason Hawkins | 8.92% | 12,322,555 | $171,037,063 | $164,013,207 | -$7,023,856 | -4.11% |
| State Street Corp | 0.00% | 9,574,099 | $132,888,494 | $127,431,258 | -$5,457,236 | -4.11% | |
| Lsv Asset Management | 0.18% | 7,179,883 | $99,657,000 | $95,564,243 | -$4,092,757 | -4.11% | |
| Alyeska Investment Group, L.P. | 0.21% | 6,008,450 | $83,397,286 | $79,972,470 | -$3,424,817 | -4.11% | |
| Geode Capital Management, Llc | 0.00% | 5,864,500 | $81,416,661 | $78,056,495 | -$3,360,166 | -4.13% | |
| Fuller & Thaler Asset Management, Inc. | 0.20% | 5,276,858 | $73,242,783 | $70,234,980 | -$3,007,803 | -4.11% | |
| Goldman Sachs Group Inc | 0.01% | 4,779,041 | $66,333,087 | $63,609,036 | -$2,724,051 | -4.11% | |
| Aqr Capital Management Llc | 0.02% | 3,548,385 | $48,524,165 | $47,229,004 | -$1,295,161 | -2.67% | |
| Squarepoint Ops Llc | 0.09% | 3,481,088 | $48,317,501 | $46,333,281 | -$1,984,220 | -4.11% | |
| Charles Schwab Investment Management Inc | 0.01% | 3,222,360 | $44,726,357 | $42,889,612 | -$1,836,745 | -4.11% | |
| Morgan Stanley | 0.00% | 3,148,361 | $43,699,259 | $41,904,685 | -$1,794,574 | -4.11% | |
| Arrowstreet Capital, Limited Partnership | 0.02% | 2,915,888 | $40,472,525 | $38,810,469 | -$1,662,056 | -4.11% | |
| Northern Trust Corp | 0.00% | 2,664,600 | $36,984,649 | $35,465,826 | -$1,518,823 | -4.11% | |
| Norges Bank | 0.00% | 2,649,546 | $36,775,698 | $35,265,457 | -$1,510,241 | -4.11% | |
| Victory Capital Management Inc | 0.02% | 2,618,879 | $36,350,040 | $34,857,279 | -$1,492,761 | -4.11% | |
| Ubs Group Ag | 0.01% | 2,608,886 | $36,211,337 | $34,724,273 | -$1,487,064 | -4.11% | |
| Long Focus Capital Management, Llc | 1.44% | 2,540,000 | $35,255,200 | $33,807,400 | -$1,447,800 | -4.11% | |
| Price T Rowe Associates Inc | 0.00% | 2,529,841 | $35,115,000 | $33,672,184 | -$1,442,816 | -4.11% | |
| Bank Of America Corp | 0.00% | 2,413,407 | $33,498,092 | $32,122,447 | -$1,375,645 | -4.11% | |
| Gotham Asset Management, Llc | 0.08% | 2,401,597 | $33,334,166 | $31,965,256 | -$1,368,910 | -4.11% | |
| Marshall Wace, Llp | 0.03% | 2,384,941 | $33,102,980 | $31,743,565 | -$1,359,415 | -4.11% | |
| Citadel Advisors Llc | 0.02% | 2,215,932 | $30,757,136 | $29,494,055 | -$1,263,081 | -4.11% | |
| D. E. Shaw & Co., Inc. | 0.02% | 2,180,720 | $30,268,393 | $29,025,383 | -$1,243,010 | -4.11% | |
| Vanguard Fiduciary Trust Co | 0.01% | 1,836,551 | $25,491,328 | $24,444,494 | -$1,046,834 | -4.11% | |
| Bank Of New York Mellon Corp | 0.00% | 1,685,407 | $23,393,444 | $22,432,767 | -$960,677 | -4.11% | |
| Millennium Management Llc | 0.01% | 1,480,276 | $20,546,231 | $19,702,474 | -$843,757 | -4.11% | |
| Man Group Plc | 0.03% | 1,334,961 | $18,529,259 | $17,768,331 | -$760,928 | -4.11% | |
| Frontier Capital Management Co Llc | 0.17% | 1,322,310 | $18,353,663 | $17,599,946 | -$753,717 | -4.11% | |
| Hbk Investments L P | 0.21% | 1,300,000 | $18,044,000 | $17,303,000 | -$741,000 | -4.11% | |
| King Luther Capital Management Corp | 0.07% | 1,198,330 | $16,632,820 | $15,949,772 | -$683,048 | -4.11% | |
| Prudential Financial Inc | 0.02% | 1,158,195 | $16,075,747 | $15,415,575 | -$660,172 | -4.11% | |
| Capital Fund Management S.A. | 0.11% | 1,135,171 | $15,756,173 | $15,109,126 | -$647,047 | -4.11% | |
| Freestone Grove Partners Lp | 0.10% | 1,120,413 | $15,551,332 | $14,912,697 | -$638,635 | -4.11% | |
| Sei Investments Co | 0.01% | 1,119,581 | $15,539,775 | $14,901,623 | -$638,152 | -4.11% | |
| Edmond De Rothschild Holding S.A. | 0.19% | 1,040,000 | $14,435,200 | $13,842,400 | -$592,800 | -4.11% | |
| Serenity Capital Management Pte. Ltd. | 4.19% | 1,000,000 | $13,880,000 | $13,310,000 | -$570,000 | -4.11% | |
| Jpmorgan Chase & Co | 0.00% | 889,930 | $12,360,598 | $11,844,968 | -$515,630 | -4.17% | |
| Invesco Ltd. | 0.00% | 854,546 | $11,861,099 | $11,374,007 | -$487,092 | -4.11% | |
| Qube Research & Technologies Ltd | 0.01% | 820,919 | $11,394,356 | $10,926,432 | -$467,924 | -4.11% | |
| Castleknight Management Lp | 0.40% | 782,376 | $10,859,379 | $10,413,425 | -$445,954 | -4.11% | |
| Susquehanna International Group, Llp | 0.01% | 758,776 | $10,531,811 | $10,099,309 | -$432,502 | -4.11% | |
| Rhumbline Advisers | 0.01% | 757,518 | $10,514,295 | $10,082,565 | -$431,730 | -4.11% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.00% | 712,914 | $10,358,641 | $9,488,885 | -$869,756 | -8.40% |
Frequently asked questions about MAT
Who owns the most MAT stock?
The largest holders of MAT are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for MATTEL INC (MAT).
Is MAT widely held by superinvestors?
Many widely followed stocks like MAT appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly MAT is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.