10 institutions reported holding $285,331 of MATTEL INC (MAT) in SEC 13F filings for 2026-06-30. Largest institutional holders: Westmount Partners, LLC ($189,282), GAMMA Investing LLC ($41,834), CX Institutional ($20,000), Versant Capital Management, Inc ($19,668), CoreCap Advisors, LLC ($9,438). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Westmount Partners, LLC | $189,282 | 13,637 | Hold |
| 2 | GAMMA Investing LLC | $41,834 | 3,014 | Trimmed |
| 3 | CX Institutional | $20,000 | 1,416 | Trimmed |
| 4 | Versant Capital Management, Inc | $19,668 | 1,417 | Trimmed |
| 5 | CoreCap Advisors, LLC | $9,438 | 680 | Hold |
| 6 | HARBOR INVESTMENT ADVISORY, LLC | $2,110 | 152 | Hold |
| 7 | ELEVATION WEALTH PARTNERS, LLC | $1,486 | 107 | Trimmed |
| 8 | EASTERN BANK | $1,388 | 100 | Hold |
| 9 | MassMutual Private Wealth & Trust, FSB | $125 | 9 | Trimmed |
| 10 | MJT & Associates Financial Advisory Group, Inc. | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30