Mattel (MAT)Ariel Investments, LLC added to its stake +1.85M shares

15.4M

Shares reported · +1.85M vs prior quarter

2.1%

Disclosed portfolio weight

$214M

Reported value

Holdings as of

Jun 30, 2026

Filed

Aug 14, 2026

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

1. Jul 29, 2026Company filing · Form 8-K · Executive change, Reg FDChanged a top executive or board member, and shared information with investors“On July 29, 2026, Roberto Stanichi was promoted to the position of President, Chief Marketing and Brand Officer of Mattel, Inc. (the “Company” or “Mattel”). Mr. Stanichi, age 47, previously served as the Company’s Executive Vice President and Chief Global Brand Officer.”
2. Aug 4, 2026Company filing · Form 8-K · ResultsReported its results

What came next

1. Sep 29, 2026Company filing · Form 8-K · Executive change, Reg FDChanged a top executive or board member, and shared information with investors“On September 30, 2026, Mattel, Inc. (the “Company” or “Mattel”) announced that the Board of Directors (the “Board”) of the Company has appointed Roger Lynch, current Board member and Independent Lead Director, as Chairman of the Board and Diana Ferguson as its new Independent Lead Director, effective October 2, 2026, and that the Board has appointed Roger Lynch as the Chief Executive Officer of the Company,…”

How to read SEC Form 13F-HR

Form 13F is the quarterly report in which investment managers that oversee $100 million or more list the US-listed stocks and some other securities they held on the last day of the quarter.

Full guide: What is an SEC Form 13F?

What else is on file for Mattel

For Mattel, OQRO holds 4 fund holdings reports (13F) dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its MAT page.

How this filing works

• SEC Form 13F

Other disclosures at Mattel

• SEC Form 13F-HRAug 14, 2026
• SEC Form 13F-HRAug 14, 2026
• SEC Form 13F-HRAug 14, 2026
• SEC Form 13F-HRMay 15, 2026
• SEC Form 13F-HRMay 15, 2026
• SEC Form 13F-HRMay 15, 2026

Everything OQRO holds on this company is on its MAT page.