마텔, Inc.
MX ˙ BMV ˙ US5770811025
SecurityMX:MAT / Mattel, Inc.
InstitutionQuadrant Capital Group Llc
Latest Disclosed Ownership6,871 shares
Latest Disclosed Value $ 99,836
Quadrant Capital Group Llc reports 62.58% decrease in ownership of MAT / Mattel, Inc.

On May 13, 2026 - Quadrant Capital Group Llc filed a 13F-HR/A form disclosing ownership of 6,871 shares of Mattel, Inc. (MX:MAT) valued at $99,836 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 18,362 shares of Mattel, Inc.. This represents a change in shares of -62.58% during the quarter.

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)
2026-05-13 2026-03-31 13F/A-1 MATTEL COM 577081102 6,871 -11,491 -62.58 100 -72.80 0.0030
2026-05-11 2026-03-31 13F MATTEL COM 577081102 6,871 -11,491 49 0.0369
2026-02-12 2025-12-31 13F MATTEL COM 577081102 18,362 -138 -0.75 364 17.04 0.0110
2025-11-13 2025-09-30 13F MATTEL COM 577081102 18,500 381 2.10 311 -12.89 0.0101
2025-08-13 2025-06-30 13F MATTEL COM 577081102 18,119 1,503 9.05 357 10.87 0.0129
2025-05-13 2025-03-31 13F MATTEL COM 577081102 16,616 14,239 599.03 323 666.67 0.0120
2025-02-13 2024-12-31 13F MATTEL COM 577081102 2,377 -300 -11.21 42 -16.00 0.0029
2024-11-12 2024-09-30 13F MATTEL COM 577081102 2,677 1,181 78.94 51 108.33 0.0035
2024-08-12 2024-06-30 13F MATTEL COM 577081102 1,496 -1,953 -56.63 24 -64.71 0.0018
2024-05-15 2024-03-31 13F MATTEL COM 577081102 3,449 -173 -4.78 68 0.00 0.0054
2024-02-08 2023-12-31 13F MATTEL COM 577081102 3,622 -110 -2.95 68 -17.07 0.0059
2023-11-14 2023-09-30 13F MATTEL COM 577081102 3,732 542 16.99 82 32.26 0.0082
2023-08-10 2023-06-30 13F MATTEL COM 577081102 3,190 967 43.50 62 55.00 0.0062
2023-05-11 2023-03-31 13F MATTEL COM 577081102 2,223 649 41.23 41 42.86 0.0043
2023-02-13 2022-12-31 13F MATTEL COM 577081102 1,574 -209 -11.72 28 -17.65 0.0032
2022-11-10 2022-09-30 13F MATTEL COM 577081102 1,783 1,131 173.47 34 126.67 0.0045
2022-08-09 2022-06-30 13F MATTEL COM 577081102 652 -5 -0.76 15 0.00 0.0020
2022-05-06 2022-03-31 13F MATTEL COM 577081102 657 247 60.24 15 66.67 0.0018
2022-02-01 2021-12-31 13F MATTEL COM 577081102 410 -83 -16.84 9 0.00 0.0011
2021-11-12 2021-09-30 13F MATTEL COM 577081102 493 65 15.19 9 0.00 0.0013
2021-08-09 2021-06-30 13F MATTEL COM 577081102 428 3 0.71 9 12.50 0.0013
2021-05-12 2021-03-31 13F MATTEL COM 577081102 425 30 7.59 8 14.29 0.0013
2021-02-16 2020-12-31 13F MATTEL COM 577081102 395 -116 -22.70 7 16.67 0.0013
2020-11-13 2020-09-30 13F MATTEL COM 577081102 511 9 1.79 6 20.00 0.0013
2020-08-13 2020-06-30 13F MATTEL COM 577081102 502 -5,583 -91.75 5 -90.74 0.0011
2020-05-15 2020-03-31 13F MATTEL Com 577081102 6,085 3,682 153.23 54 80.00 0.0090
2020-03-19 2019-12-31 13F/A-1 MATTEL Com 577081102 2,403 -73 -2.95 30 15.38 0.0036
2020-02-03 2019-12-31 13F MATTEL Com 577081102 2,403 -73 30 101.3739
2019-10-24 2019-09-30 13F MATTEL COM 577081102 2,476 1,140 85.33 26 85.71 0.0040
2019-07-24 2019-06-30 13F MATTEL COM 577081102 1,336 -524 -28.17 14 -41.67 0.0022
2019-04-29 2019-03-31 13F MATTEL COM 577081102 1,860 1,803 3,163.16 24 0.0042
2019-01-17 2018-12-31 13F MATTEL COM 577081102 57 -139 -70.92 0 -100.00
2018-10-29 2018-09-30 13F MATTEL COM 577081102 196 48 32.43 2 100.00 0.0006
2018-08-08 2018-06-30 13F MATTEL COM 577081102 148 148 1 0.0004
2018-05-10 2018-03-31 13F Mattel COM 577081102 0 -833 -100.00 0 -100.00
2018-01-31 2017-12-31 13F Mattel COM 577081102 833 145 21.08 12 20.00 0.0048
2017-10-13 2017-09-30 13F Mattel COM 577081102 688 434 170.87 10 100.00 0.0041
2017-08-14 2017-06-30 13F Mattel COM 577081102 254 -501 -66.36 5 -70.59 0.0022
2017-04-10 2017-03-31 13F Mattel COM 577081102 755 401 113.28 17 142.86 0.0075
2017-01-11 2016-12-31 13F Mattel COM 577081102 354 -244 -40.80 7 -53.33 0.0035
2016-10-25 2016-09-30 13F Mattel COM 577081102 598 48 8.73 15 7.14 0.0098
2016-07-28 2016-06-30 13F Mattel COM 577081102 550 -1,006 -64.65 14 -72.00 0.0096
2016-04-27 2016-03-31 13F Mattel COM 577081102 1,556 37 2.44 50 28.21 0.0324
2016-01-28 2015-12-31 13F Mattel COM 577081102 1,519 -61 -3.86 39 21.88 0.0270
2015-10-28 2015-09-30 13F Mattel COM 577081102 1,580 -60 -3.66 32 -20.00 0.0221
2015-08-12 2015-06-30 13F Mattel COM 577081102 1,640 1,640 40 0.0255
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.