마틴운송(주)
US ˙ NasdaqGS ˙ US5730751089

SecurityMRTN / Marten Transport, Ltd.
InstitutionMorgan Stanley
Latest Disclosed Ownership1,294,143 shares
Latest Disclosed Value $ 16,992,134
Morgan Stanley reports 3.69% decrease in ownership of MRTN / Marten Transport, Ltd.

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 1,294,143 shares of Marten Transport, Ltd. (US:MRTN) valued at $16,992,098 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 1,343,772 shares of Marten Transport, Ltd.. This represents a change in shares of -3.69% during the quarter. The current value of the position is $22,983,980 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)
2026-05-15 2026-03-31 13F MARTEN TRANS COM 573075108 1,294,143 -49,629 -3.69 16,992 11.12 0.0010
2026-05-27 2025-12-31 13F/A-1 MARTEN TRANS COM 573075108 1,343,772 295,438 28.18 15,292 36.84 0.0009
2026-02-13 2025-12-31 13F MARTEN TRANS COM 573075108 1,343,772 295,438 15,292 0.0009
2026-05-27 2025-09-30 13F/A-1 MARTEN TRANS COM 573075108 1,048,334 13,875 1.34 11,175 -16.83 0.0007
2025-11-14 2025-09-30 13F MARTEN TRANS COM 573075108 1,048,334 13,875 11,175 0.0007
2025-08-15 2025-06-30 13F MARTEN TRANS COM 573075108 1,034,459 3,534 0.34 13,438 -5.00 0.0009
2025-05-15 2025-03-31 13F MARTEN TRANS COM 573075108 1,030,925 106,119 11.47 14,144 -2.02 0.0010
2025-05-15 2024-12-31 13F/A-1 MARTEN TRANS COM 573075108 924,806 -300,620 -24.53 14,436 -33.44 0.0010
2025-02-14 2024-12-31 13F MARTEN TRANS COM 573075108 924,806 -300,620 14,436 0.0010
2025-05-14 2024-09-30 13F/A-2 MARTEN TRANS COM 573075108 1,225,426 441,803 56.38 21,690 50.03 0.0016
2025-02-14 2024-09-30 13F/A-1 MARTEN TRANS COM 573075108 1,225,426 441,803 21,690 0.0016
2024-11-14 2024-09-30 13F MARTEN TRANS COM 573075108 1,225,426 441,803 21,690 0.0002
2025-05-14 2024-06-30 13F/A-2 MARTEN TRANS COM 573075108 783,623 -201,142 -20.43 14,458 -20.56 0.0011
2024-10-17 2024-06-30 13F/A-1 MARTEN TRANS COM 573075108 783,623 -201,142 14,458 0.0011
2024-08-14 2024-06-30 13F MARTEN TRANS COM 573075108 783,623 -201,142 14,458 0.0011
2024-10-17 2024-03-31 13F/A-2 MARTEN TRANS COM 573075108 984,765 105,656 12.02 18,198 -1.33 0.0015
2024-08-16 2024-03-31 13F/A-1 MARTEN TRANS COM 573075108 984,765 105,656 18,198 0.0002
2024-05-15 2024-03-31 13F MARTEN TRANS COM 573075108 984,765 105,656 18,198 0.0015
2024-08-16 2023-12-31 13F/A-1 MARTEN TRANS COM 573075108 879,109 -20,607 -2.29 18,444 4.00 0.0016
2024-02-13 2023-12-31 13F MARTEN TRANS COM 573075108 879,109 -20,607 18,444 0.0016
2023-11-15 2023-09-30 13F MARTEN TRANS COM 573075108 899,716 -327,854 -26.71 17,733 -32.81 0.0018
2023-08-14 2023-06-30 13F MARTEN TRANS COM 573075108 1,227,570 131,901 12.04 26,393 14.98 0.0026
2023-05-15 2023-03-31 13F MARTEN TRANS COM 573075108 1,095,669 54,104 5.19 22,954 11.42 0.0025
2023-02-14 2022-12-31 13F MARTEN TRANS COM 573075108 1,041,565 -100,056 -8.76 20,602 -5.82 0.0023
2022-11-14 2022-09-30 13F MARTEN TRANS COM 573075108 1,141,621 138,760 13.84 21,875 29.68 0.0030
2022-10-27 2022-06-30 13F/A-1 MARTEN TRANS COM 573075108 1,002,861 506,521 102.05 16,869 91.32 0.0022
2022-08-15 2022-06-30 13F MARTEN TRANS COM 573075108 1,002,861 506,521 16,869 0.0004
2022-10-27 2022-03-31 13F/A-1 MARTEN TRANS COM 573075108 496,340 -20,336 -3.94 8,817 -0.55 0.0012
2022-05-13 2022-03-31 13F MARTEN TRANS COM 573075108 496,340 -20,336 8,817 0.0012
2022-02-14 2021-12-31 13F MARTEN TRANS COM 573075108 516,676 110,814 27.30 8,866 39.23 0.0011
2021-11-15 2021-09-30 13F MARTEN TRANS COM 573075108 405,862 -340,560 -45.63 6,368 -48.26 0.0009
2021-08-23 2021-06-30 13F/A-1 MARTEN TRANS COM 573075108 746,422 -136,074 -15.42 12,308 -17.81 0.0016
2021-08-16 2021-06-30 13F MARTEN TRANS COM 573075108 746,422 -136,074 12,308 0.0003
2021-05-17 2021-03-31 13F MARTEN TRANS COM 573075108 882,496 -350,158 -28.41 14,975 -29.49 0.0022
2021-02-16 2020-12-31 13F MARTEN TRANS COM 573075108 1,232,654 1,046,831 563.35 21,239 600.26 0.0033
2020-11-13 2020-09-30 13F MARTEN TRANS COM 573075108 185,823 55,460 42.54 3,033 -7.50 0.0006
2020-08-14 2020-06-30 13F MARTEN TRANS COM 573075108 130,363 -355,876 -73.19 3,279 -67.13 0.0007
2020-05-26 2020-03-31 13F/A-1 MARTEN TRANS COM 573075108 486,239 278,141 133.66 9,976 123.08 0.0027
2020-05-15 2020-03-31 13F MARTEN TRANS COM 573075108 486,239 278,141 9,976 766.3648
2020-02-14 2019-12-31 13F MARTEN TRANS COM 573075108 208,098 -47,157 -18.47 4,472 -15.70 0.0010
2019-11-14 2019-09-30 13F MARTEN TRANS COM 573075108 255,255 -28,395 -10.01 5,305 3.01 0.0014
2019-08-14 2019-06-30 13F MARTEN TRANS COM 573075108 283,650 -488,329 -63.26 5,150 -62.59 0.0014
2019-05-15 2019-03-31 13F MARTEN TRANS COM 573075108 771,979 429,092 125.14 13,765 147.97 0.0039
2019-02-14 2018-12-31 13F MARTEN TRANS COM 573075108 342,887 -351,532 -50.62 5,551 -62.02 0.0017
2019-04-23 2018-09-30 13F/A-2 MARTEN TRANS COM 573075108 694,419 548,425 375.65 14,617 327.02 0.0037
2018-11-20 2018-09-30 13F/A-1 MARTEN TRANS COM 573075108 694,419 0 14,617 0.0037
2018-11-14 2018-09-30 13F MARTEN TRANS COM 573075108 694,419 548,425 14,617
2019-04-23 2018-06-30 13F/A-1 MARTEN TRANS COM 573075108 145,994 12,051 9.00 3,423 12.08 0.0009
2018-08-14 2018-06-30 13F MARTEN TRANS COM 573075108 145,994 12,051 3,423
2019-04-23 2018-03-31 13F/A-1 MARTEN TRANS COM 573075108 133,943 -67,856 -33.63 3,054 -25.46 0.0008
2018-05-14 2018-03-31 13F MARTEN TRANS COM 573075108 133,943 -67,856 3,054
2019-04-23 2017-12-31 13F/A-1 MARTEN TRANS COM 573075108 201,799 -50,683 -20.07 4,097 -21.03 0.0011
2018-02-14 2017-12-31 13F MARTEN TRANS COM 573075108 201,799 -50,683 4,097
2017-11-14 2017-09-30 13F MARTEN TRANS COM 573075108 252,482 86,397 52.02 5,188 14.00 0.0016
2017-08-11 2017-06-30 13F MARTEN TRANS COM 573075108 166,085 121,844 275.41 4,551 338.44 0.0014
2017-05-22 2017-03-31 13F/A-1 MARTEN TRANS COM 573075108 44,241 -33,609 -43.17 1,038 -42.78 0.0003
2017-05-12 2017-03-31 13F MARTEN TRANS COM 573075108 44,241 1,038
2017-02-22 2016-12-31 13F/A-1 MARTEN TRANS COM 573075108 77,850 60,180 340.58 1,814 390.27 0.0006
2017-02-13 2016-12-31 13F MARTEN TRANS COM 573075108 77,850 1,814
2016-11-10 2016-09-30 13F MARTEN TRANS COM 573075108 17,670 3,960 28.88 370 36.53 0.0001
2016-08-12 2016-06-30 13F MARTEN TRANS COM 573075108 13,710 -35 -0.25 271 5.86 0.0001
2016-05-12 2016-03-31 13F MARTEN TRANS COM 573075108 13,745 -1,429 -9.42 256 -4.83 0.0001
2016-02-09 2015-12-31 13F MARTEN TRANS COM 573075108 15,174 4,537 42.65 269 56.40 0.0001
2016-02-08 2015-09-30 13F/A-1 MARTEN TRANS COM 573075108 10,637 -92,368 -89.67 172 -92.30 0.0001
2015-11-09 2015-09-30 13F MARTEN TRANS COM 573075108 10,637 172
2015-08-12 2015-06-30 13F MARTEN TRANS COM 573075108 103,005 84,500 456.63 2,234 420.75 0.0008
2015-05-14 2015-03-31 13F MARTEN TRANS COM 573075108 18,505 302 1.66 429 7.79 0.0002
2015-02-13 2014-12-31 13F MARTEN TRANS COM 573075108 18,203 -140 -0.76 398 21.71 0.0001
2014-12-16 2014-09-30 13F/A-1 MARTEN TRANS COM 573075108 18,343 -163,812 -89.93 327 -91.66 0.0001
2014-11-14 2014-09-30 13F MARTEN TRANS COM 573075108 18,343 327
2014-05-13 2014-03-31 13F MARTEN TRANS COM 573075108 182,155 -23,330 -11.35 3,920 -5.52 0.0016
2014-02-13 2013-12-31 13F MARTEN TRANS COM 573075108 205,485 -655 -0.32 4,149 17.30 0.0018
2013-11-13 2013-09-30 13F MARTEN TRANSPORT LTD COM ST COM 573075108 206,140 -57,825 -21.91 3,537 -14.48 0.0017
2013-08-08 2013-06-30 13F MARTEN TRANSPORT LTD COM ST COM 573075108 263,965 263,965 4,136 0.0021
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.