마틴운송(주)
US ˙ NasdaqGS ˙ US5730751089

SecurityMRTN / Marten Transport, Ltd.
InstitutionCwm, Llc
Latest Disclosed Ownership11,182 shares
Latest Disclosed Value $ 146,820
Cwm, Llc reports 50.09% increase in ownership of MRTN / Marten Transport, Ltd.

On May 14, 2026 - Cwm, Llc filed a 13F-HR form disclosing ownership of 11,182 shares of Marten Transport, Ltd. (US:MRTN) valued at $146,820 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 7,450 shares of Marten Transport, Ltd.. The current value of the position is $198,592 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 MARTEN TRANS COM 573075108 11,182 3,732 50.09 147 0.0004
2026-01-26 2025-12-31 13F MARTEN TRANS COM 573075108 7,450 -2,381 -24.22 0 0.0002
2025-10-15 2025-09-30 13F MARTEN TRANS COM 573075108 9,831 2,283 30.25 0 0.0003
2025-07-25 2025-06-30 13F MARTEN TRANS COM 573075108 7,548 4,508 148.29 0 0.0003
2025-05-01 2025-03-31 13F MARTEN TRANS COM 573075108 3,040 245 8.77 0 0.0002
2025-02-04 2024-12-31 13F MARTEN TRANS COM 573075108 2,795 -627 -18.32 0 0.0002
2024-10-08 2024-09-30 13F MARTEN TRANS COM 573075108 3,422 103 3.10 0 0.0003
2024-07-10 2024-06-30 13F MARTEN TRANS COM 573075108 3,319 1,561 88.79 0 0.0003
2024-04-05 2024-03-31 13F MARTEN TRANS COM 573075108 1,758 -397 -18.42 0 0.0002
2024-02-01 2023-12-31 13F MARTEN TRANS COM 573075108 2,155 -202 -8.57 0 0.0002
2023-10-11 2023-09-30 13F MARTEN TRANS COM 573075108 2,357 -18 -0.76 0 0.0003
2023-08-03 2023-06-30 13F MARTEN TRANS COM 573075108 2,375 -49 -2.02 0 0.0003
2023-05-01 2023-03-31 13F MARTEN TRANS COM 573075108 2,424 -7 -0.29 0 0.0003
2023-02-01 2022-12-31 13F MARTEN TRANS COM 573075108 2,431 -395 -13.98 0 -100.00 0.0004
2022-10-27 2022-09-30 13F MARTEN TRANS COM 573075108 2,826 -149 -5.01 54 8.00 0.0004
2022-07-28 2022-06-30 13F MARTEN TRANS COM 573075108 2,975 -908 -23.38 50 -27.54 0.0004
2022-04-21 2022-03-31 13F MARTEN TRANS COM 573075108 3,883 -3,148 -44.77 69 -42.98 0.0005
2022-01-31 2021-12-31 13F MARTEN TRANS COM 573075108 7,031 5,995 578.67 121 611.76 0.0009
2021-09-15 2021-06-30 13F/A-1 MARTEN TRANS COM 573075108 1,036 0 0.00 17 0.00 0.0001
2021-07-29 2021-06-30 13F MARTEN TRANS COM 573075108 1,036 0 17 0.0001
2021-09-15 2021-03-31 13F/A-1 MARTEN TRANS COM 573075108 1,036 0 0.00 17 0.00 0.0001
2021-04-27 2021-03-31 13F MARTEN TRANS COM 573075108 1,036 0 18 0.0002
2021-09-15 2020-12-31 13F/A-1 MARTEN TRANS COM 573075108 1,036 0 0.00 17 0.00 0.0001
2021-01-27 2020-12-31 13F MARTEN TRANS COM 573075108 1,036 0 18 0.0002
2021-09-15 2020-09-30 13F/A-1 MARTEN TRANS COM 573075108 1,036 0 0.00 17 0.00 0.0001
2020-10-19 2020-09-30 13F MARTEN TRANS COM 573075108 1,793 757 29 0.0003
2021-09-15 2020-06-30 13F/A-1 MARTEN TRANS COM 573075108 1,036 0 0.00 17 0.00 0.0001
2020-07-22 2020-06-30 13F MARTEN TRANS COM 573075108 1,196 160 30 0.0004
2021-09-15 2020-03-31 13F/A-1 MARTEN TRANS COM 573075108 1,036 0 0.00 17 0.00 0.0001
2020-04-28 2020-03-31 13F MARTEN TRANS COM 573075108 1,196 160 25 0.0004
2021-09-14 2019-12-31 13F/A-1 MARTEN TRANS COM 573075108 1,036 0 0.00 17 0.00 0.0001
2020-01-27 2019-12-31 13F MARTEN TRANS COM 573075108 505 -531 11 0.0001
2021-09-14 2019-09-30 13F/A-1 MARTEN TRANS COM 573075108 1,036 0 0.00 17 0.00 0.0001
2019-10-22 2019-09-30 13F MARTEN TRANS COM 573075108 505 -531 10 0.0001
2021-09-14 2019-06-30 13F/A-1 MARTEN TRANS COM 573075108 1,036 0 0.00 17 0.00 0.0001
2019-07-31 2019-06-30 13F MARTEN TRANS COM 573075108 505 -531 9 0.0001
2021-09-02 2019-03-31 13F/A-1 MARTEN TRANS COM 573075108 1,036 531 105.15 17 112.50 0.0001
2019-04-22 2019-03-31 13F MARTEN TRANS COM 573075108 505 0 9 0.0002
2019-01-25 2018-12-31 13F MARTEN TRANS COM 573075108 505 0 0.00 8 -27.27 0.0002
2018-10-29 2018-09-30 13F MARTEN TRANS COM 573075108 505 505 11 0.0003
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.