Mattel, Inc.
US ˙ NasdaqGS ˙ US5770811025

SecurityMAT / Mattel, Inc.
InstitutionUs Bancorp \de\
Latest Disclosed Ownership14,404 shares
Latest Disclosed Value $ 209,290
Us Bancorp \de\ reports 19.70% decrease in ownership of MAT / Mattel, Inc.

On May 14, 2026 - Us Bancorp \de\ filed a 13F-HR form disclosing ownership of 14,404 shares of Mattel, Inc. (US:MAT) valued at $209,290 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 30, 2026 disclosing 17,937 shares of Mattel, Inc.. This represents a change in shares of -19.70% during the quarter. The current value of the position is $204,537 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 COM 577081102 14,404 -3,533 -19.70 209 -41.13 0.0001
2026-01-30 2025-12-31 13F MATTEL COM 577081102 17,937 1,099 6.53 356 25.44 0.0004
2025-11-12 2025-09-30 13F MATTEL COM 577081102 16,838 -1,252 -6.92 283 -20.51 0.0003
2025-07-24 2025-06-30 13F MATTEL COM 577081102 18,090 -2,447 -11.92 357 -10.78 0.0004
2025-05-08 2025-03-31 13F MATTEL COM 577081102 20,537 -658 -3.10 399 6.40 0.0005
2025-02-05 2024-12-31 13F MATTEL COM 577081102 21,195 99 0.47 376 -6.48 0.0005
2024-10-28 2024-09-30 13F MATTEL COM 577081102 21,096 1,400 7.11 402 25.31 0.0005
2024-08-07 2024-06-30 13F MATTEL COM 577081102 19,696 -252 -1.26 320 -18.99 0.0004
2024-05-08 2024-03-31 13F MATTEL COM 577081102 19,948 -1,245 -5.87 395 -1.25 0.0006
2024-02-09 2023-12-31 13F MATTEL COM 577081102 21,193 -1,469 -6.48 400 -19.84 0.0006
2023-11-03 2023-09-30 13F MATTEL COM 577081102 22,662 -890 -3.78 499 8.48 0.0008
2023-08-10 2023-06-30 13F MATTEL COM 577081102 23,552 37 0.16 460 6.48 0.0007
2023-05-09 2023-03-31 13F MATTEL COMMON STOCK 577081102 23,515 -2,659 -10.16 433 -7.30 0.0007
2023-02-13 2022-12-31 13F MATTEL COMMON STOCK 577081102 26,174 -3,231 -10.99 467 -16.34 0.0008
2022-10-27 2022-09-30 13F MATTEL COMMON STOCK 577081102 29,405 -828 -2.74 557 -17.36 0.0011
2022-08-01 2022-06-30 13F MATTEL COMMON STOCK 577081102 30,233 -779 -2.51 674 -2.18 0.0013
2022-05-11 2022-03-31 13F MATTEL COMMON STOCK 577081102 31,012 25,421 454.68 689 474.17 0.0011
2022-02-11 2021-12-31 13F MATTEL COMMON STOCK 577081102 5,591 1,213 27.71 120 48.15 0.0002
2021-11-10 2021-09-30 13F MATTEL COMMON STOCK 577081102 4,378 604 16.00 81 6.58 0.0002
2021-08-05 2021-06-30 13F MATTEL COMMON STOCK 577081102 3,774 19 0.51 76 1.33 0.0001
2021-04-28 2021-03-31 13F MATTEL COMMON STOCK 577081102 3,755 254 7.26 75 22.95 0.0002
2021-02-04 2020-12-31 13F MATTEL COMMON STOCK 577081102 3,501 0 0.00 61 48.78 0.0001
2020-11-10 2020-09-30 13F MATTEL COMMON STOCK 577081102 3,501 -496 -12.41 41 5.13 0.0001
2020-08-07 2020-06-30 13F MATTEL COMMON STOCK 577081102 3,997 -2,080 -34.23 39 -27.78 0.0001
2020-05-13 2020-03-31 13F MATTEL COMMON STOCK 577081102 6,077 378 6.63 54 -29.87 0.0002
2020-02-04 2019-12-31 13F MATTEL COMMON STOCK 577081102 5,699 -327 -5.43 77 11.59 0.0002
2019-11-08 2019-09-30 13F MATTEL COMMON STOCK 577081102 6,026 -2,601 -30.15 69 -28.87 0.0002
2019-08-13 2019-06-30 13F MATTEL COMMON STOCK 577081102 8,627 -6,087 -41.37 97 -49.48 0.0003
2019-05-08 2019-03-31 13F MATTEL COMMON STOCK 577081102 14,714 301 2.09 192 33.33 0.0006
2019-02-13 2018-12-31 13F MATTEL COMMON STOCK 577081102 14,413 -1,594 -9.96 144 -42.63 0.0005
2018-10-31 2018-09-30 13F MATTEL COMMON STOCK 577081102 16,007 -4,648 -22.50 251 -25.96 0.0007
2018-08-08 2018-06-30 13F MATTEL COMMON STOCK 577081102 20,655 -8,127 -28.24 339 -10.55 0.0010
2018-05-08 2018-03-31 13F MATTEL COMMON STOCK 577081102 28,782 -4,286 -12.96 379 -25.54 0.0012
2018-02-02 2017-12-31 13F MATTEL COMMON STOCK 577081102 33,068 -47,157 -58.78 509 -59.02 0.0016
2017-11-13 2017-09-30 13F MATTEL COMMON STOCK 577081102 80,225 -44,487 -35.67 1,242 -53.74 0.0040
2017-07-19 2017-06-30 13F MATTEL COMMON STOCK 577081102 124,712 -47,837 -27.72 2,685 -39.25 0.0090
2017-05-03 2017-03-31 13F MATTEL COMMON STOCK 577081102 172,549 -84,045 -32.75 4,420 -37.47 0.0151
2017-02-08 2016-12-31 13F MATTEL COMMON STOCK 577081102 256,594 -21,663 -7.79 7,069 -16.09 0.0254
2016-11-04 2016-09-30 13F MATTEL COMMON STOCK 577081102 278,257 -28,861 -9.40 8,425 -12.33 0.0312
2016-08-10 2016-06-30 13F MATTEL COMMON STOCK 577081102 307,118 9,127 3.06 9,610 -4.08 0.0365
2016-05-13 2016-03-31 13F MATTEL COMMON STOCK 577081102 297,991 67,876 29.50 10,019 60.25 0.0394
2016-02-10 2015-12-31 13F MATTEL COMMON STOCK 577081102 230,115 -66,340 -22.38 6,252 0.14 0.0252
2015-11-16 2015-09-30 13F MATTEL COMMON STOCK 577081102 296,455 42,313 16.65 6,243 -4.38 0.0262
2015-08-10 2015-06-30 13F MATTEL COMMON STOCK 577081102 254,142 35,625 16.30 6,529 30.76 0.0253
2015-05-08 2015-03-31 13F MATTEL COMMON STOCK 577081102 218,517 -40,817 -15.74 4,993 -37.78 0.0192
2015-02-13 2014-12-31 13F MATTEL COMMON STOCK 577081102 259,334 -51,292 -16.51 8,025 -15.71 0.0310
2014-11-14 2014-09-30 13F MATTEL COMMON STOCK 577081102 310,626 -23,605 -7.06 9,521 -26.90 0.0386
2014-08-14 2014-06-30 13F MATTEL COMMON STOCK 577081102 334,231 23,848 7.68 13,025 4.62 0.0519
2014-05-14 2014-03-31 13F MATTEL COMMON STOCK 577081102 310,383 24,156 8.44 12,450 -8.58 0.0510
2014-02-13 2013-12-31 13F MATTEL COMMON STOCK 577081102 286,227 43,621 17.98 13,619 34.05 0.0552
2013-11-07 2013-09-30 13F MATTEL COMMON STOCK 577081102 242,606 -6,934 -2.78 10,160 -10.14 0.0449
2013-08-09 2013-06-30 13F MATTEL COMMON STOCK 577081102 249,540 249,540 11,307 0.0516
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.