Mattel, Inc.
US ˙ NasdaqGS ˙ US5770811025

SecurityMAT / Mattel, Inc.
InstitutionNeuberger Berman Group LLC
Latest Disclosed Ownership25,527 shares
Latest Disclosed Value $ 370,907
Neuberger Berman Group LLC reports 0.57% increase in ownership of MAT / Mattel, Inc.

On May 14, 2026 - Neuberger Berman Group LLC filed a 13F-HR form disclosing ownership of 25,527 shares of Mattel, Inc. (US:MAT) valued at $370,907 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 25,382 shares of Mattel, Inc.. This represents a change in shares of 0.57% during the quarter. The current value of the position is $366,057 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)
2026-05-14 2026-03-31 13F MATTEL Common 577081102 25,527 145 0.57 371 -26.44 0.0003
2026-02-13 2025-12-31 13F MATTEL Common 577081102 25,382 2,427 10.57 504 30.31 0.0004
2025-11-12 2025-09-30 13F MATTEL Common 577081102 22,955 -97 -0.42 386 -14.98 0.0003
2025-08-25 2025-06-30 13F/A-1 MATTEL Common 577081102 23,052 23,052 455 0.0003
2025-08-13 2025-06-30 13F MATTEL Common 577081102 23,052 23,052 455 0.0002
2024-11-14 2024-06-30 13F/A-1 MATTEL Common 577081102 0 -13,458 -100.00 0 -100.00
2024-08-13 2024-06-30 13F MATTEL Common 577081102 0 -13,458 0
2024-11-14 2024-03-31 13F/A-1 MATTEL Common 577081102 13,458 166 1.25 267 6.40 0.0002
2024-05-13 2024-03-31 13F MATTEL Common 577081102 13,458 166 267 0.0002
2024-11-14 2023-12-31 13F/A-2 MATTEL Common 577081102 13,292 13,292 251 0.0002
2024-02-09 2023-12-31 13F MATTEL Common 577081102 13,292 13,292 251 0.0002
2023-02-13 2022-12-31 13F MATTEL Common 577081102 0 -46,108 -100.00 0 -100.00
2022-11-15 2022-09-30 13F MATTEL Common 577081102 46,108 7,911 20.71 873 2.34 0.0009
2022-08-15 2022-06-30 13F MATTEL Common 577081102 38,197 10,153 36.20 853 36.92 0.0009
2022-05-23 2022-03-31 13F/A-1 MATTEL Common 577081102 28,044 12,632 81.96 623 99.04 0.0005
2022-05-13 2022-03-31 13F MATTEL Common 577081102 28,044 12,632 603 0.0005
2022-02-11 2021-12-31 13F MATTEL Common 577081102 15,412 15,412 313 0.0002
2017-08-08 2017-06-30 13F MATTEL COMMON STOCK 577081102 0 -9,365 -100.00 0 -100.00
2017-05-10 2017-03-31 13F MATTEL COMMON STOCK 577081102 9,365 -486 -4.93 240 -11.44 0.0003
2017-02-06 2016-12-31 13F MATTEL COMMON STOCK 577081102 9,851 980 11.05 271 0.74 0.0004
2016-11-02 2016-09-30 13F MATTEL COMMON STOCK 577081102 8,871 -78,129 -89.80 269 -90.12 0.0004
2016-08-05 2016-06-30 13F MATTEL COMMON STOCK 577081102 87,000 74,719 608.41 2,722 559.08 0.0038
2016-05-06 2016-03-31 13F MATTEL COMMON STOCK 577081102 12,281 -432,691 -97.24 413 -96.58 0.0006
2016-01-28 2015-12-31 13F MATTEL COMMON STOCK 577081102 444,972 858 0.19 12,090 29.26 0.0158
2015-11-10 2015-09-30 13F MATTEL COMMON STOCK 577081102 444,114 444,114 0.00 9,353 0.0121
2015-02-05 2014-12-31 13F MATTEL COMMON STOCK 577081102 0 -2,305,999 -100.00 0 -100.00
2014-11-04 2014-09-30 13F MATTEL COMMON STOCK 577081102 2,305,999 -1,215,690 -34.52 70,678 -48.50 0.0725
2014-08-05 2014-06-30 13F MATTEL COMMON STOCK 577081102 3,521,689 69,203 2.00 137,240 -0.90 0.1340
2014-05-05 2014-03-31 13F MATTEL COMMON STOCK 577081102 3,452,486 -174,523 -4.81 138,480 -19.76 0.1408
2014-02-11 2013-12-31 13F MATTEL COMMON STOCK 577081102 3,627,009 251,657 7.46 172,573 22.08 0.1774
2013-10-29 2013-09-30 13F/A-1 MATTEL COMMON STOCK 577081102 3,375,352 371,585 12.37 141,360 3.86 0.1569
2013-10-29 2013-09-30 13F MATTEL COMMON STOCK 577081102 2,027,465 68,244
2013-08-13 2013-06-30 13F MATTEL COMMON STOCK 577081102 3,003,767 3,003,767 136,101 0.1618
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.