Mattel, Inc.
MX ˙ BMV ˙ US5770811025
SecurityMX:MAT / Mattel, Inc.
InstitutionQuadrature Capital Ltd
Latest Disclosed Ownership27,164 shares
Latest Disclosed Value $ 394,693
Quadrature Capital Ltd ownership in MAT / Mattel, Inc.

On May 15, 2026 - Quadrature Capital Ltd filed a 13F-HR form disclosing ownership of 27,164 shares of Mattel, Inc. (MX:MAT) valued at $394,693 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on March 25, 2024 disclosing 0 shares of Mattel, Inc..

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F MATTEL COM 577081102 27,164 27,164 395 0.0047
2024-03-25 2023-03-31 13F/A-1 MATTEL COM 577081102 0 -38,576 -100.00 0 -100.00
2023-05-15 2023-03-31 13F MATTEL COM 577081102 0 -38,576 0
2023-02-14 2022-12-31 13F MATTEL COM 577081102 38,576 38,576 689 0.0213
2024-04-09 2021-03-31 13F/A-1 MATTEL COM 577081102 0 -62,525 -100.00 0 -100.00
2021-05-17 2021-03-31 13F MATTEL COM 577081102 0 -62,525 0
2021-02-16 2020-12-31 13F MATTEL COM 577081102 62,525 49,625 384.69 1,091 622.52 0.0542
2020-11-13 2020-09-30 13F MATTEL COM 577081102 12,900 12,900 151 0.0089
2020-08-14 2020-06-30 13F MATTEL COM 577081102 0 -72,981 -100.00 0 -100.00
2020-05-15 2020-03-31 13F MATTEL COM 577081102 72,981 72,981 643 0.1831
2018-02-12 2017-12-31 13F MATTEL COM 577081102 0 -387,503 -100.00 0 -100.00
2017-11-13 2017-09-30 13F MATTEL COM 577081102 387,503 387,503 5,999 0.7600
2017-05-12 2017-03-31 13F MATTEL COM 577081102 0 -25,035 -100.00 0 -100.00
2017-04-11 2016-12-31 13F/A-3 MATTEL COM 577081102 25,035 -13,394 -34.85 690 -40.72 0.0438
2017-03-27 2016-12-31 13F/A-2 MATTEL COM 577081102 25,035 0 690 0.0437
2017-03-24 2016-12-31 13F/A-1 MATTEL COM 577081102 25,035 0 690 0.0438
2017-02-13 2016-12-31 13F MATTEL COM 577081102 21,307 504
2016-11-10 2016-09-30 13F MATTEL COM 577081102 38,429 38,429 0.00 1,164 0.1016
2016-05-13 2016-03-31 13F MATTEL COM 577081102 0 -51,560 -100.00 0 -100.00
2016-02-11 2015-12-31 13F MATTEL COM 577081102 51,560 51,560 1,401 0.2150
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.