Dorman Products, Inc.
US ˙ NasdaqGS ˙ US2582781009

SecurityDORM / Dorman Products, Inc.
InstitutionCwm, Llc
Latest Disclosed Ownership359 shares
Latest Disclosed Value $ 37,465
Cwm, Llc reports 4.52% decrease in ownership of DORM / Dorman Products, Inc.

On May 14, 2026 - Cwm, Llc filed a 13F-HR form disclosing ownership of 359 shares of Dorman Products, Inc. (US:DORM) valued at $37,465 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 376 shares of Dorman Products, Inc.. The current value of the position is $44,785 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 DORMAN PRODS COM 258278100 359 -17 -4.52 37 0.0001
2026-01-26 2025-12-31 13F DORMAN PRODS COM 258278100 376 73 24.09 0 0.0001
2025-10-15 2025-09-30 13F DORMAN PRODS COM 258278100 303 67 28.39 0 0.0001
2025-07-25 2025-06-30 13F DORMAN PRODS COM 258278100 236 -6 -2.48 0 0.0001
2025-05-01 2025-03-31 13F DORMAN PRODS COM 258278100 242 5 2.11 0 0.0001
2025-02-04 2024-12-31 13F DORMAN PRODS COM 258278100 237 53 28.80 0 0.0001
2024-10-08 2024-09-30 13F DORMAN PRODS COM 258278100 184 26 16.46 0 0.0001
2024-07-10 2024-06-30 13F DORMAN PRODS COM 258278100 158 -53 -25.12 0 0.0001
2024-04-05 2024-03-31 13F DORMAN PRODS COM 258278100 211 5 2.43 0 0.0001
2024-02-01 2023-12-31 13F DORMAN PRODS COM 258278100 206 -75 -26.69 0 0.0001
2023-10-11 2023-09-30 13F DORMAN PRODS COM 258278100 281 4 1.44 0 0.0001
2023-08-03 2023-06-30 13F DORMAN PRODS COM 258278100 277 -16 -5.46 0 0.0001
2023-05-01 2023-03-31 13F DORMAN PRODS COM 258278100 293 46 18.62 0 0.0002
2023-02-01 2022-12-31 13F DORMAN PRODS COM 258278100 247 -72 -22.57 0 -100.00 0.0001
2022-10-27 2022-09-30 13F DORMAN PRODS COM 258278100 319 78 32.37 26 0.00 0.0002
2022-07-28 2022-06-30 13F DORMAN PRODS COM 258278100 241 -27 -10.07 26 4.00 0.0002
2022-04-21 2022-03-31 13F DORMAN PRODS COM 258278100 268 27 11.20 25 -7.41 0.0002
2022-01-31 2021-12-31 13F DORMAN PRODS COM 258278100 241 0 0.00 27 8.00 0.0002
2021-09-15 2021-06-30 13F/A-1 DORMAN PRODS COM 258278100 241 0 0.00 25 0.00 0.0002
2021-07-29 2021-06-30 13F DORMAN PRODS COM 258278100 241 0 25 0.0002
2021-09-15 2021-03-31 13F/A-1 DORMAN PRODS COM 258278100 241 0 0.00 25 0.00 0.0002
2021-04-27 2021-03-31 13F DORMAN PRODS COM 258278100 282 41 29 0.0003
2021-09-15 2020-12-31 13F/A-1 DORMAN PRODS COM 258278100 241 0 0.00 25 0.00 0.0002
2021-01-27 2020-12-31 13F DORMAN PRODS COM 258278100 90 -151 8 0.0001
2021-09-15 2020-09-30 13F/A-1 DORMAN PRODS COM 258278100 241 0 0.00 25 0.00 0.0002
2020-10-19 2020-09-30 13F DORMAN PRODUCTS COM 258278100 90 -151 8 0.0001
2021-09-15 2020-06-30 13F/A-1 DORMAN PRODS COM 258278100 241 0 0.00 25 0.00 0.0002
2020-07-22 2020-06-30 13F DORMAN PRODUCTS COM 258278100 11 -230 1 0.0000
2021-09-15 2020-03-31 13F/A-1 DORMAN PRODS COM 258278100 241 0 0.00 25 0.00 0.0002
2020-04-28 2020-03-31 13F DORMAN PRODUCTS COM 258278100 11 -230 1 0.0000
2021-09-14 2019-12-31 13F/A-1 DORMAN PRODS COM 258278100 241 0 0.00 25 0.00 0.0002
2020-01-27 2019-12-31 13F DORMAN PRODUCTS COM 258278100 11 -230 1 0.0000
2021-09-14 2019-09-30 13F/A-1 DORMAN PRODS COM 258278100 241 0 0.00 25 0.00 0.0002
2021-09-14 2019-06-30 13F/A-1 DORMAN PRODS COM 258278100 241 0 0.00 25 0.00 0.0002
2021-09-02 2019-03-31 13F/A-1 DORMAN PRODS COM 258278100 241 219 995.45 25 1,150.00 0.0002
2019-04-22 2019-03-31 13F DORMAN PRODUCTS COM 258278100 3 -19 0
2019-01-25 2018-12-31 13F DORMAN PRODUCTS COM 258278100 22 22 2 0.0000
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.