Mattel, Inc.
US ˙ NasdaqGS ˙ US5770811025

SecurityMAT / Mattel, Inc.
InstitutionCwm, Llc
Latest Disclosed Ownership28,703 shares
Latest Disclosed Value $ 417,055
Cwm, Llc ownership in MAT / Mattel, Inc.

On May 14, 2026 - Cwm, Llc filed a 13F-HR form disclosing ownership of 28,703 shares of Mattel, Inc. (US:MAT) valued at $417,055 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 44,281 shares of Mattel, Inc.. The current value of the position is $411,601 USD.

Cwm, Llc has a history of taking positions in derivatives of the underlying security (MAT) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MAT / Mattel, Inc. Historical Put/Call Ratio
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 28,703 -15,578 -35.18 417 0.0011
2026-01-26 2025-12-31 13F MATTEL COM 577081102 44,281 3,443 8.43 1 0.0024
2025-10-15 2025-09-30 13F MATTEL COM 577081102 40,838 -23,209 -36.24 1 -100.00 0.0021
2025-07-25 2025-06-30 13F MATTEL COM 577081102 64,047 -20,879 -24.58 1 0.00 0.0045
2025-05-01 2025-03-31 13F MATTEL COM 577081102 84,926 72,796 600.13 2 0.0066
2025-02-04 2024-12-31 13F MATTEL COM 577081102 12,130 9,317 331.21 0 0.0009
2024-10-08 2024-09-30 13F MATTEL COM 577081102 2,813 172 6.51 0 0.0002
2024-07-10 2024-06-30 13F MATTEL COM 577081102 2,641 1,097 71.05 0 0.0002
2024-04-05 2024-03-31 13F MATTEL COM 577081102 1,544 345 28.77 0 0.0002
2024-02-01 2023-12-31 13F MATTEL COM 577081102 1,199 -368 -23.48 0 0.0001
2023-10-11 2023-09-30 13F MATTEL COM 577081102 1,567 26 1.69 0 0.0002
2023-08-03 2023-06-30 13F MATTEL COM 577081102 1,541 261 20.39 0 0.0002
2023-05-01 2023-03-31 13F MATTEL COM 577081102 1,280 175 15.84 0 0.0002
2023-02-01 2022-12-31 13F MATTEL COM 577081102 1,105 27 2.50 0 -100.00 0.0001
2022-10-27 2022-09-30 13F MATTEL COM 577081102 1,078 -795 -42.45 20 -52.38 0.0002
2022-07-28 2022-06-30 13F MATTEL COM 577081102 1,873 906 93.69 42 100.00 0.0003
2022-04-21 2022-03-31 13F MATTEL COM 577081102 967 53 5.80 21 5.00 0.0001
2022-01-31 2021-12-31 13F MATTEL COM 577081102 914 322 54.39 20 66.67 0.0001
2021-09-15 2021-06-30 13F/A-1 MATTEL COM 577081102 592 0 0.00 12 0.00 0.0001
2021-07-29 2021-06-30 13F MATTEL COM 577081102 592 0 12 0.0001
2021-09-15 2021-03-31 13F/A-1 MATTEL COM 577081102 592 0 0.00 12 0.00 0.0001
2021-04-27 2021-03-31 13F MATTEL COM 577081102 517 -75 10 0.0001
2021-09-15 2020-12-31 13F/A-1 MATTEL COM 577081102 592 0 0.00 12 0.00 0.0001
2021-01-27 2020-12-31 13F MATTEL COM 577081102 517 -75 9 0.0001
2021-09-15 2020-09-30 13F/A-1 MATTEL COM 577081102 592 0 0.00 12 0.00 0.0001
2020-10-19 2020-09-30 13F MATTEL COM 577081102 217 -375 3 0.0000
2021-09-15 2020-06-30 13F/A-1 MATTEL COM 577081102 592 0 0.00 12 0.00 0.0001
2020-07-22 2020-06-30 13F MATTEL COM 577081102 217 -375 2 0.0000
2021-09-15 2020-03-31 13F/A-1 MATTEL COM 577081102 592 0 0.00 12 0.00 0.0001
2020-04-28 2020-03-31 13F MATTEL COM 577081102 103 -489 1 0.0000
2021-09-14 2019-12-31 13F/A-1 MATTEL COM 577081102 592 0 0.00 12 0.00 0.0001
2020-01-27 2019-12-31 13F MATTEL COM 577081102 84 -508 1 0.0000
2021-09-14 2019-09-30 13F/A-1 MATTEL COM 577081102 592 0 0.00 12 0.00 0.0001
2019-10-22 2019-09-30 13F MATTEL COM 577081102 84 -508 1 0.0000
2021-09-14 2019-06-30 13F/A-1 MATTEL COM 577081102 592 0 0.00 12 0.00 0.0001
2019-07-31 2019-06-30 13F MATTEL COM 577081102 84 -508 1 0.0000
2021-09-02 2019-03-31 13F/A-1 MATTEL COM 577081102 592 526 796.97 12 1,100.00 0.0001
2019-04-22 2019-03-31 13F MATTEL COM 577081102 84 18 1 0.0000
2019-01-25 2018-12-31 13F MATTEL COM 577081102 66 0 0.00 1 0.00 0.0000
2018-10-29 2018-09-30 13F MATTEL COM 577081102 66 0 0.00 1 0.00 0.0000
2018-07-31 2018-06-30 13F MATTEL COM 577081102 66 0 0.00 1 0.00 0.0000
2018-04-26 2018-03-31 13F MATTEL COM 577081102 66 0 0.00 1 0.00 0.0000
2018-01-16 2017-12-31 13F MATTEL COM 577081102 66 -20 -23.26 1 0.00 0.0000
2017-10-16 2017-09-30 13F MATTEL COM 577081102 86 0 0.00 1 -50.00 0.0000
2017-07-17 2017-06-30 13F MATTEL COM 577081102 86 20 30.30 2 0.00 0.0001
2017-04-17 2017-03-31 13F MATTEL COM 577081102 66 0 0.00 2 0.00 0.0001
2017-01-19 2016-12-31 13F MATTEL COM 577081102 66 -28,400 -99.77 2 -99.77 0.0001
2016-10-17 2016-09-30 13F MATTEL COM 577081102 28,466 -92,600 -76.49 862 -77.24 0.0595
2016-07-21 2016-06-30 13F MATTEL COM 577081102 121,066 -10,500 -7.98 3,788 -14.36 0.2763
2016-04-18 2016-03-31 13F MATTEL COM 577081102 131,566 131,566 0.00 4,423 0.3884
2015-07-09 2015-06-30 13F MATTEL COM 577081102 0 -13,000 -100.00 0 -100.00
2015-04-30 2015-03-31 13F MATTEL COM 577081102 13,000 3,300 34.02 297 -1.00 0.0301
2015-02-12 2014-12-31 13F MATTEL COM 577081102 9,700 -38,700 -79.96 300 -79.77 0.0364
2014-11-14 2014-09-30 13F MATTEL COM 577081102 48,400 8,700 21.91 1,483 -4.14 0.2153
2014-08-14 2014-06-30 13F MATTEL COM 577081102 39,700 -17,900 -31.08 1,547 -33.03 0.2768
2014-05-16 2014-03-31 13F MATTEL COM 577081102 57,600 25,821 81.25 2,310 52.78 0.3149
2014-02-14 2013-12-31 13F MATTEL COM 577081102 31,779 19,187 152.37 1,512 186.91 0.2359
2013-11-14 2013-09-30 13F MATTEL COM 577081102 12,592 12,592 527 0.1383
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2014-05-16 2014-03-31 13F MATTEL CALL Call 0 -100.00 0 -100.00 n/a n/a n/a
2014-02-14 2013-12-31 13F MATTEL CALL Call 279 68 n/a n/a n/a
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.