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Mattel Inc

MAT

Mattel Inc

Mattel Inc historical holders

total: 9

Ariel Appreciation Fund Mattel Inc transactions over time

Total transactions:
20
New positions:
1
Added:
7
Reduced:
12
Held since:
2019 Q3
Held for:
27 quarters
Latest activity:
2026 Q1
John W. Rogers Jr. has been an institutional investor in Mattel Inc (MAT) since 2019 Q3. According to 2026 Q1 report, John W. Rogers Jr. holds 1,412,641 shares with a market value of roughly $20.53M representing 2.35% of their equity portfolio. The fund/company first acquired MAT in 2019 Q3, initially purchasing about 2.85M shares. Since the initial investment, Ariel Appreciation Fund has made 19 more transactions in this position.

Does John W. Rogers Jr. still hold MAT?

Yes, John W. Rogers Jr. continues to hold Mattel Inc (MAT). According to their 2026 Q1 report, they maintain a position of 1,412,641 shares valued at approximately $20.53M, representing 2.35% of their equity portfolio.

When did John W. Rogers Jr. first invest in MAT?

John W. Rogers Jr. first invested in Mattel Inc (MAT) in 2019 Q3 at the reported quarter-end price of $11.39 per share, acquiring 2,845,100 shares in their initial purchase.

What is John W. Rogers Jr.'s average cost basis for MAT?

Based on historical transaction data, John W. Rogers Jr.'s estimated cost basis for Mattel Inc (MAT) is approximately $12.28 per share. This represents their average reported price* across all buy transactions.

Estimated cost basis*

Weighted AVG buy price:
$12.28
Weighted AVG sell price:
$18.43

MAT transactions history by Ariel Appreciation Fund

20 results
Period % of
portfolio
Shares
held after*
Reported
price*
Value* % (shares)
of activity
% change
to portfolio
2026 Q1
2.35%
1,412,641
$14.53
$20,525,674
-5.74% (-85,957)
-0.14%
2025 Q4
3.34%
1,498,598
$19.84
$29,732,184
-7.59% (-123,121)
-0.27%
2025 Q2
3.77%
1,621,719
$19.72
$31,980,299
-7.44% (-130,406)
-0.3%
2025 Q1
4.00%
1,752,125
$19.43
$34,043,789
-13.75% (-279,231)
-0.57%
2024 Q4
3.77%
2,031,356
$17.73
$36,015,942
+1.60% (+31,935)
+0.06%
2024 Q1
3.69%
1,999,421
$19.81
$39,608,530
+11.05% (+198,976)
+0.37%
2023 Q3
3.88%
1,800,445
$22.03
$39,663,803
-18.28% (-402,849)
-0.8%
2023 Q2
3.88%
2,203,294
$19.54
$43,052,365
+9.33% (+188,071)
+0.33%
2022 Q4
3.16%
2,015,223
$17.84
$35,951,578
+6.84% (+129,090)
+0.2%
2022 Q3
3.51%
1,886,133
$18.94
$35,723,359
-0.39% (-7,373)
-0.01%
2022 Q2
3.85%
$22.33
-18.21% (-421,531)
2022 Q1
3.98%
$22.21
-8.64% (-218,880)
2021 Q4
3.90%
$21.56
+9.32% (+215,958)
2021 Q3
3.15%
$18.56
+3.61% (+80,759)
2021 Q1
3.31%
$19.92
-9.89% (-245,600)
2020 Q4
3.69%
$17.45
-25.61% (-854,600)
2020 Q3
4.05%
$11.70
-12.85% (-491,900)
2020 Q1
3.97%
$8.81
+38.92% (+1,072,800)
2019 Q4
2.84%
$13.55
-3.11% (-88,600)
2019 Q3
2.50%
$11.39
new
* Shares, change to shares, sold shares, shares held after: split-adjusted.
* Reported price: this doesn't represent the actual buy or sell price. It is the split-adjusted price of the security as of the last day of the reported period.
If the security is completely sold out, we show the reported split-adjusted price prior to the actual period.
* Estimated cost basis: based on "Reported price*" (not earlier than 2013 Q2). Calculation starts from the latest "new buy" activity to the latest "close out" activity (if any).
* Value or Price: If the security is completely sold out, we show the reported value (or price) prior to the actual period.
* New buy or own: this means there is no earlier reporting (for us or in general). So we can't know if the actual purchase of the security happened at the reported period or earlier.