MAT Mattel, Inc.
Mattel, Inc. (MAT) Institutional Ownership
What the institutions did with MAT last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| EdgePoint Investment Group Inc. | 51.0M | 16.7% |
| PRIMECAP MANAGEMENT CO/CA/ | 29.5M | 9.7% |
| BlackRock, Inc. | 26.2M | 8.6% |
| ARIEL INVESTMENTS, LLC | 15.4M | 5.1% |
| VANGUARD CAPITAL MANAGEMENT LLC | 13.2M | 4.3% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 13.1M | 4.3% |
| DIMENSIONAL FUND ADVISORS LP | 12.6M | 4.1% |
| SOUTHEASTERN ASSET MANAGEMENT INC/TN/ | 12.3M | 4.0% |
| STATE STREET CORP | 9.6M | 3.1% |
| LSV ASSET MANAGEMENT | 7.2M | 2.4% |
| Alyeska Investment Group, L.P. | 6.0M | 2.0% |
| GEODE CAPITAL MANAGEMENT, LLC | 5.9M | 1.9% |
| FULLER & THALER ASSET MANAGEMENT, INC. | 5.3M | 1.7% |
| GOLDMAN SACHS GROUP INC | 4.8M | 1.6% |
| AQR CAPITAL MANAGEMENT LLC | 3.5M | 1.2% |
| Squarepoint Ops LLC | 3.5M | 1.1% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 3.2M | 1.1% |
| MORGAN STANLEY | 3.1M | 1.0% |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 2.9M | 1.0% |
| NORTHERN TRUST CORP | 2.7M | 0.9% |
| NORGES BANK | 2.6M | 0.9% |
| VICTORY CAPITAL MANAGEMENT INC | 2.6M | 0.9% |
| UBS Group AG | 2.6M | 0.9% |
| Long Focus Capital Management, LLC | 2.5M | 0.8% |
| PRICE T ROWE ASSOCIATES INC /MD/ | 2.5M | 0.8% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| FULLER & THALER ASSET MANAGEMENT, INC. | Increased | 1.6M | 5.3M | +3.6M |
| PRICE T ROWE ASSOCIATES INC /MD/ | Reduced | 6.1M | 2.5M | -3.6M |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Increased | 644.3K | 2.9M | +2.3M |
| EdgePoint Investment Group Inc. | Increased | 49.1M | 51.0M | +1.9M |
| Point72 Asset Management, L.P. | Reduced | 2.2M | 334.9K | -1.9M |
| ARIEL INVESTMENTS, LLC | Increased | 13.6M | 15.4M | +1.8M |
| CITADEL ADVISORS LLC | Increased | 468.2K | 2.2M | +1.7M |
| D. E. Shaw & Co., Inc. | Reduced | 3.9M | 2.2M | -1.7M |
| Gotham Asset Management, LLC | Increased | 802.4K | 2.4M | +1.6M |
| DIMENSIONAL FUND ADVISORS LP | Increased | 11.1M | 12.6M | +1.5M |
| Alyeska Investment Group, L.P. | Increased | 4.6M | 6.0M | +1.4M |
| MARSHALL WACE, LLP | Reduced | 3.7M | 2.4M | -1.3M |
| MILLENNIUM MANAGEMENT LLC | Reduced | 2.8M | 1.5M | -1.3M |
| GOLDMAN SACHS GROUP INC | Increased | 3.5M | 4.8M | +1.2M |
| Interval Partners, LP | Sold Out | 1.2M | 0 | -1.2M |
| BlackRock, Inc. | Reduced | 27.3M | 26.2M | -1.1M |
| Freestone Grove Partners LP | New | 0 | 1.1M | +1.1M |
| Squarepoint Ops LLC | Increased | 2.4M | 3.5M | +1.1M |
| AQR CAPITAL MANAGEMENT LLC | Reduced | 4.6M | 3.5M | -1.1M |
| Quantinno Capital Management LP | Reduced | 1.2M | 175.4K | -1.0M |
| PRUDENTIAL FINANCIAL INC | Increased | 117.4K | 1.2M | +1.0M |
| SEI INVESTMENTS CO | Reduced | 2.2M | 1.1M | -1.0M |
| SERENITY CAPITAL MANAGEMENT PTE. LTD. | Reduced | 2.0M | 1.0M | -1.0M |
| LSV ASSET MANAGEMENT | Increased | 6.2M | 7.2M | +941.5K |
| Man Group plc | Increased | 445.0K | 1.3M | +890.0K |
| Pine Valley Investments Ltd Liability Co | New | 0 | 725.2K | +725.2K |
| CAPITAL FUND MANAGEMENT S.A. | Increased | 505.8K | 1.1M | +629.4K |
| Long Focus Capital Management, LLC | Increased | 1.9M | 2.5M | +620.8K |
| Galvin, Gaustad & Stein, LLC | Sold Out | 558.4K | 0 | -558.4K |
| JPMORGAN CHASE & CO | Reduced | 1.4M | 889.9K | -512.3K |
| Corient Private Wealth LP | Reduced | 538.1K | 26.1K | -512.0K |
| WINTON GROUP Ltd | Sold Out | 509.9K | 0 | -509.9K |
| BANK OF AMERICA CORP /DE/ | Increased | 1.9M | 2.4M | +498.5K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Reduced | 13.6M | 13.1M | -497.3K |
| SOUTHEASTERN ASSET MANAGEMENT INC/TN/ | Reduced | 12.8M | 12.3M | -489.6K |
| VANGUARD CAPITAL MANAGEMENT LLC | Reduced | 13.7M | 13.2M | -488.7K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Increased | 271.2K | 758.8K | +487.6K |
| ExodusPoint Capital Management, LP | New | 0 | 442.5K | +442.5K |
| HANCOCK WHITNEY CORP | Reduced | 521.9K | 87.8K | -434.1K |
| MORGAN STANLEY | Reduced | 3.5M | 3.1M | -399.1K |
| FRONTIER CAPITAL MANAGEMENT CO LLC | Reduced | 1.7M | 1.3M | -369.1K |
| Walleye Capital LLC | Reduced | 362.5K | 3.2K | -359.3K |
| Fieldview Capital Management, LLC | New | 0 | 339.0K | +339.0K |
| Qube Research & Technologies Ltd | Reduced | 1.2M | 820.9K | -338.3K |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | 6.2M | 5.9M | -309.6K |
| Holocene Advisors, LP | Increased | 244.7K | 553.4K | +308.7K |
| UBS Group AG | Increased | 2.3M | 2.6M | +304.0K |
| Schonfeld Strategic Advisors LLC | Reduced | 554.6K | 251.5K | -303.1K |
| Dana Investment Advisors, Inc. | New | 0 | 287.6K | +287.6K |
| TUDOR INVESTMENT CORP ET AL | Reduced | 621.1K | 341.9K | -279.1K |
| FIRST TRUST ADVISORS LP | Increased | 407.8K | 679.0K | +271.2K |
| Bank of New York Mellon Corp | Reduced | 1.9M | 1.7M | -260.9K |
| SummitTX Capital, L.P. | Increased | 106.4K | 365.9K | +259.5K |
| Havemeyer Place LP | Sold Out | 237.5K | 0 | -237.5K |
| VAN ECK ASSOCIATES CORP | Sold Out | 232.0K | 0 | -232.0K |
| Allspring Global Investments Holdings, LLC | Sold Out | 213.1K | 0 | -213.1K |
| CAXTON ASSOCIATES LLP | New | 0 | 200.7K | +200.7K |
| BARINGTON COMPANIES MANAGEMENT, LLC | New | 0 | 200.0K | +200.0K |
| Foyston, Gordon & Payne Inc | Increased | 88.2K | 283.3K | +195.2K |
| XTX Topco Ltd | Sold Out | 193.2K | 0 | -193.2K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.