Mattel, Inc.
US ˙ NasdaqGS ˙ US5770811025

SecurityMAT / Mattel, Inc.
InstitutionBokf, Na
Latest Disclosed Ownership115 shares
Latest Disclosed Value $ 1,671
Bokf, Na ownership in MAT / Mattel, Inc.

On May 8, 2026 - Bokf, Na filed a 13F-HR form disclosing ownership of 115 shares of Mattel, Inc. (US:MAT) valued at $1,671 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 0 shares of Mattel, Inc.. The current value of the position is $1,649 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)
2026-05-08 2026-03-31 13F MATTEL common 577081102 115 115 2 0.0000
2026-02-03 2025-12-31 13F MATTEL common 577081102 0 -420 -100.00 0 -100.00
2025-11-13 2025-09-30 13F MATTEL common 577081102 420 420 7 0.0001
2017-05-15 2017-03-31 13F MATTEL COM 577081102 0 -129,892 -100.00 0 -100.00
2017-02-14 2016-12-31 13F MATTEL COM 577081102 129,892 27,643 27.03 3,578 15.57 0.1177
2016-11-10 2016-09-30 13F MATTEL COM 577081102 102,249 91,237 828.52 3,096 797.39 0.1025
2016-08-12 2016-06-30 13F MATTEL COM 577081102 11,012 -14 -0.13 345 -7.01 0.0122
2016-05-13 2016-03-31 13F MATTEL COM 577081102 11,026 11,026 0.00 371 0.0134
2014-11-13 2014-09-30 13F MATTEL COM 577081102 0 -5,545 -100.00 0 -100.00
2014-08-14 2014-06-30 13F MATTEL COM 577081102 5,545 -5,298 -48.86 216 -50.34 0.0069
2014-05-14 2014-03-31 13F MATTEL COM 577081102 10,843 -1,935 -15.14 435 -28.45 0.0144
2014-02-14 2013-12-31 13F MATTEL COM 577081102 12,778 448 3.63 608 17.60 0.0204
2013-11-12 2013-09-30 13F MATTEL COM 577081102 12,330 -674 -5.18 517 -12.22 0.0188
2013-08-14 2013-06-30 13F MATTEL COM 577081102 13,004 13,004 589 0.0223
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.