Mattel, Inc.
US ˙ NasdaqGS ˙ US5770811025

SecurityMAT / Mattel, Inc.
InstitutionBessemer Group Inc
Latest Disclosed Ownership3,490 shares
Latest Disclosed Value $ 50
Bessemer Group Inc reports 8.52% increase in ownership of MAT / Mattel, Inc.

On May 6, 2026 - Bessemer Group Inc filed a 13F-HR form disclosing ownership of 3,490 shares of Mattel, Inc. (US:MAT) valued at $50,710 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 3,216 shares of Mattel, Inc.. The current value of the position is $50,047 USD.

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)
2026-05-06 2026-03-31 13F MATTEL SC 577081102 3,490 274 8.52 0 0.0001
2026-02-05 2025-12-31 13F MATTEL SC 577081102 3,216 647 25.18 0 0.0001
2025-11-05 2025-09-30 13F MATTEL SC 577081102 2,569 -223 -7.99 0 0.0001
2025-08-01 2025-06-30 13F MATTEL SC 577081102 2,792 -1,022 -26.80 0 0.0001
2025-04-23 2025-03-31 13F MATTEL SC 577081102 3,814 51 1.36 0 0.0001
2025-02-13 2024-12-31 13F MATTEL SC 577081102 3,763 425 12.73 0 0.0001
2024-11-12 2024-09-30 13F MATTEL SC 577081102 3,338 611 22.41 0 0.0001
2024-08-13 2024-06-30 13F MATTEL SC 577081102 2,727 -291 -9.64 0 0.0001
2024-08-13 2024-03-31 13F/A-1 MATTEL SC 577081102 3,018 0 0.00 0 0.0001
2024-05-13 2024-03-31 13F MATTEL SC 577081102 3,018 0 0 0.0001
2024-02-09 2023-12-31 13F MATTEL SC 577081102 3,018 0 0.00 0 0.0001
2023-11-13 2023-09-30 13F MATTEL SC 577081102 3,018 0 0.00 0 0.0001
2023-08-10 2023-06-30 13F MATTEL SC 577081102 3,018 291 10.67 0 0.0001
2023-05-10 2023-03-31 13F MATTEL SC 577081102 2,727 40 1.49 0 0.0001
2023-02-13 2022-12-31 13F MATTEL SC 577081102 2,687 0 0.00 0 -100.00 0.0001
2022-11-09 2022-09-30 13F MATTEL SC 577081102 2,687 0 0.00 51 -15.00 0.0001
2022-08-10 2022-06-30 13F MATTEL SC 577081102 2,687 397 17.34 60 17.65 0.0001
2022-05-12 2022-03-31 13F MATTEL SC 577081102 2,290 0 0.00 51 4.08 0.0001
2022-01-27 2021-12-31 13F MATTEL SC 577081102 2,290 0 0.00 49 13.95 0.0001
2021-11-12 2021-09-30 13F MATTEL SC 577081102 2,290 0 0.00 43 -6.52 0.0001
2021-08-06 2021-06-30 13F MATTEL SC 577081102 2,290 0 0.00 46 0.00 0.0001
2021-05-13 2021-03-31 13F MATTEL SC 577081102 2,290 2,290 46 0.0001
2020-11-12 2020-09-30 13F MATTEL SC 577081102 0 -350 -100.00 0 -100.00
2020-08-05 2020-06-30 13F MATTEL SC 577081102 350 0 0.00 3 0.00 0.0000
2020-04-30 2020-03-31 13F MATTEL SC 577081102 350 0 0.00 3 -40.00 0.0000
2020-02-04 2019-12-31 13F MATTEL SC 577081102 350 -834 -70.44 5 -64.29 0.0000
2019-11-07 2019-09-30 13F MATTEL SC 577081102 1,184 -1,169 -49.68 14 -48.15 0.0000
2019-07-19 2019-06-30 13F MATTEL SC 577081102 2,353 1,843 361.37 27 285.71 0.0001
2019-05-13 2019-03-31 13F MATTEL SC 577081102 510 -615 -54.67 7 -36.36 0.0000
2019-05-21 2018-12-31 13F/A-1 MATTEL SC 577081102 1,125 0 0.00 11 -38.89 0.0000
2019-02-12 2018-12-31 13F MATTEL SC 577081102 1,125 0 11 0.0000
2018-11-06 2018-09-30 13F MATTEL SC 577081102 1,125 775 221.43 18 200.00 0.0001
2018-07-25 2018-06-30 13F MATTEL SC 577081102 350 -1,670 -82.67 6 -77.78 0.0000
2018-05-10 2018-03-31 13F MATTEL SC 577081102 2,020 -1,725 -46.06 27 -52.63 0.0001
2018-01-30 2017-12-31 13F MATTEL SC 577081102 3,745 -830 -18.14 57 -19.72 0.0002
2017-11-03 2017-09-30 13F MATTEL SC 577081102 4,575 -1,030 -18.38 71 -41.32 0.0003
2017-07-27 2017-06-30 13F MATTEL SC 577081102 5,605 -5,508,894 -99.90 121 -99.91 0.0005
2017-05-12 2017-03-31 13F MATTEL SC 577081102 5,514,499 893,224 19.33 141,227 10.93 0.5889
2017-02-07 2016-12-31 13F MATTEL SC 577081102 4,621,275 925,764 25.05 127,317 13.78 0.5865
2016-11-10 2016-09-30 13F MATTEL SC 577081102 3,695,511 31,730 0.87 111,899 -2.39 0.5628
2016-08-11 2016-06-30 13F MATTEL SC 577081102 3,663,781 6,510 0.18 114,639 -6.76 0.6286
2016-05-11 2016-03-31 13F MATTEL SC 577081102 3,657,271 -1,767,590 -32.58 122,957 -16.58 0.6940
2016-02-12 2015-12-31 13F MATTEL SC 577081102 5,424,861 -58,906 -1.07 147,395 27.63 0.8208
2015-11-16 2015-09-30 13F MATTEL SC 577081102 5,483,767 198,758 3.76 115,487 -14.94 0.6601
2015-08-14 2015-06-30 13F MATTEL SC 577081102 5,285,009 680,242 14.77 135,772 29.04 0.7092
2015-06-18 2015-03-31 13F/A-1 MATTEL SC 577081102 4,604,767 1,187,997 34.77 105,218 -0.49 0.5336
2015-05-14 2015-03-31 13F MATTEL SC 577081102 4,604,767 105,218
2015-02-17 2014-12-31 13F MATTEL SC 577081102 3,416,770 1,525,855 80.69 105,732 82.43 0.5694
2014-12-11 2014-09-30 13F/A-1 MATTEL SC 577081102 1,890,915 77,340 4.26 57,957 -17.99 0.3288
2014-11-13 2014-09-30 13F MATTEL SC 577081102 1,890,915 77,340 57,957 0.3666
2014-08-13 2014-06-30 13F MATTEL SC 577081102 1,813,575 512,082 39.35 70,674 35.38 0.4343
2014-05-14 2014-03-31 13F MATTEL SC 577081102 1,301,493 1,300,605 146,464.53 52,203 121,302.33 0.3520
2014-02-18 2013-12-31 13F MATTEL SC 577081102 888 -65 -6.82 43 7.50 0.0003
2013-11-08 2013-09-30 13F MATTEL SC 577081102 953 -496 -34.23 40 -38.46 0.0003
2013-08-14 2013-06-30 13F MATTEL SC 577081102 1,449 1,449 65 0.0006
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.