Motorcar Parts of America, Inc.
US ˙ NasdaqGS ˙ US6200711009

SecurityMPAA / Motorcar Parts of America, Inc.
InstitutionMarshall Wace, Llp
Latest Disclosed Ownership44,544 shares
Latest Disclosed Value $ 492,656
Marshall Wace, Llp reports 52.12% decrease in ownership of MPAA / Motorcar Parts of America, Inc.

On May 14, 2026 - Marshall Wace, Llp filed a 13F-HR form disclosing ownership of 44,544 shares of Motorcar Parts of America, Inc. (US:MPAA) valued at $492,657 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 93,038 shares of Motorcar Parts of America, Inc.. This represents a change in shares of -52.12% during the quarter. The current value of the position is $471,721 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 MOTORCAR PARTS COMMON STOCK 620071100 44,544 -48,494 -52.12 493 -57.14 0.0002
2026-02-13 2025-12-31 13F MOTORCAR PARTS COMMON STOCK 620071100 93,038 -200,412 -68.30 1,148 -76.34 0.0010
2025-11-13 2025-09-30 13F MOTORCAR PARTS COMMON STOCK 620071100 293,450 -212,505 -42.00 4,854 -14.35 0.0049
2025-08-13 2025-06-30 13F MOTORCAR PARTS COMMON STOCK 620071100 505,955 248,637 96.63 5,667 131.83 0.0064
2025-05-15 2025-03-31 13F MOTORCAR PARTS COMMON STOCK 620071100 257,318 141,987 123.11 2,445 179.00 0.0031
2025-02-13 2024-12-31 13F MOTORCAR PARTS COMMON STOCK 620071100 115,331 50,302 77.35 877 82.50 0.0011
2024-11-14 2024-09-30 13F MOTORCAR PARTS COMMON STOCK 620071100 65,029 -27,720 -29.89 481 -16.08 0.0006
2024-08-14 2024-06-30 13F MOTORCAR PARTS COMMON STOCK 620071100 92,749 19,233 26.16 572 -3.21 0.0008
2024-05-15 2024-03-31 13F MOTORCAR PARTS COMMON STOCK 620071100 73,516 -82,006 -52.73 591 -59.30 0.0009
2024-02-14 2023-12-31 13F MOTORCAR PARTS COMMON STOCK 620071100 155,522 -30,315 -16.31 1,453 -3.39 0.0025
2023-11-14 2023-09-30 13F MOTORCAR PARTS COMMON STOCK 620071100 185,837 -48,019 -20.53 1,503 -16.96 0.0030
2023-08-14 2023-06-30 13F MOTORCAR PARTS COMMON STOCK 620071100 233,856 194,267 490.71 1,810 515.65 0.0035
2023-05-15 2023-03-31 13F MOTORCAR PARTS COMMON STOCK 620071100 39,589 39,589 295 0.0006
2022-05-16 2022-03-31 13F MOTORCAR PARTS COMMON STOCK 620071100 0 -7,436 -100.00 0 -100.00
2022-02-14 2021-12-31 13F MOTORCAR PARTS COMMON STOCK 620071100 7,436 7,436 127 0.0002
2021-05-17 2021-03-31 13F MOTORCAR PARTS COMMON STOCK 620071100 0 -28,355 -100.00 0 -100.00
2021-02-16 2020-12-31 13F MOTORCAR PARTS COMMON STOCK 620071100 28,355 -6,673 -19.05 556 2.02 0.0030
2020-11-16 2020-09-30 13F MOTORCAR PARTS COMMON STOCK 620071100 35,028 35,028 545 0.0035
2016-05-13 2016-03-31 13F MOTORCAR PARTS COMMON STOCK 620071100 0 -137,583 -100.00 0 -100.00
2016-02-10 2015-12-31 13F MOTORCAR PARTS COMMON STOCK 620071100 137,583 137,583 0.00 4,652 0.0437
2015-08-14 2015-06-30 13F MOTORCAR PARTS COMMON STOCK 620071100 0 -172,652 -100.00 0 -100.00
2015-05-11 2015-03-31 13F MOTORCAR PARTS COMMON STOCK 620071100 172,652 68,003 64.98 4,798 47.45 0.0625
2015-02-17 2014-12-31 13F MOTORCAR PARTS COMMON STOCK 620071100 104,649 92,199 740.55 3,254 859.88 0.0430
2014-11-13 2014-09-30 13F MOTORCAR PARTS COMMON STOCK 620071100 12,450 -336 -2.63 339 -0.29 0.0049
2014-05-14 2014-03-31 13F MOTORCAR PARTS COMMON STOCK 620071100 12,786 12,786 340 0.0062
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.