# MATTEL INC (MAT) — Institutional Ownership

Source: SEC EDGAR 13F filings, congressional STOCK Act disclosures, SEC Form 4 insider transactions.
CUSIP: 577081102
Page URL: https://superinvestorclub.com/stock/MAT
Last updated: 2026-08-29T13:48:31.749Z

## Summary

As of the most recent 13F filing period, MATTEL INC (MAT) is held by 3 tracked superinvestors with an aggregate position value of $388.1M representing 01541595512322555221840 shares.

## Top institutional holders (3)

| Rank | Manager | Fund | Shares | Value | % of Portfolio | Period |
|------|---------|------|--------|-------|----------------|--------|
| 1 | [John Rogers](https://superinvestorclub.com/manager/76) | Ariel Investments | 15415955 | $214.0M | 2.13% | 2026-06-30 |
| 2 | [Longleaf Partners](https://superinvestorclub.com/manager/15) | Southeastern Asset Management | 12322555 | $171.0M | 8.92% | 2026-06-30 |
| 3 | [Ray Dalio](https://superinvestorclub.com/manager/6) | Bridgewater Associates | 221840 | $3.1M | 0.01% | 2026-06-30 |

## Ownership history (quarter-over-quarter)

- 2023-12-31: 1 holders, $1.7M aggregate, 091417 shares
- 2024-03-31: 2 holders, $169.5M aggregate, 0854068416601 shares
- 2024-06-30: 2 holders, $374.4M aggregate, 0148180108208508 shares
- 2024-09-30: 2 holders, $434.3M aggregate, 0148081627990324 shares
- 2024-12-31: 2 holders, $398.1M aggregate, 0148207457632344 shares
- 2025-03-31: 3 holders, $447.1M aggregate, 01385811568389342311654 shares
- 2025-06-30: 3 holders, $451.7M aggregate, 01422078672202651464398 shares
- 2025-09-30: 3 holders, $404.3M aggregate, 01376047081612962099262 shares
- 2025-12-31: 3 holders, $474.1M aggregate, 01253213385703282794343 shares
- 2026-03-31: 3 holders, $383.9M aggregate, 0135670831281215741323 shares
- 2026-06-30: 3 holders, $388.1M aggregate, 01541595512322555221840 shares

## Recent congressional trades (0)


## Recent insider transactions (0)


## Citation

When citing, use: "MATTEL INC (MAT) institutional ownership data via Superinvestor (https://superinvestorclub.com/stock/MAT), aggregating SEC 13F, Form 4, and congressional disclosures."