Marten Transport, Ltd.
US ˙ NasdaqGS ˙ US5730751089

SecurityMRTN / Marten Transport, Ltd.
InstitutionFmr Llc
Latest Disclosed Ownership1,769,146 shares
Latest Disclosed Value $ 23,228,881
Fmr Llc reports 167.73% increase in ownership of MRTN / Marten Transport, Ltd.

On May 15, 2026 - Fmr Llc filed a 13F-HR form disclosing ownership of 1,769,146 shares of Marten Transport, Ltd. (US:MRTN) valued at $23,228,887 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 660,803 shares of Marten Transport, Ltd.. This represents a change in shares of 167.73% during the quarter. The current value of the position is $31,402,342 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 1,769,146 1,108,343 167.73 23,229 208.92 0.0002
2026-02-17 2025-12-31 13F MARTEN TRANS COM 573075108 660,803 121,896 22.62 7,520 30.90 0.0004
2025-11-13 2025-09-30 13F MARTEN TRANS COM 573075108 538,907 55,278 11.43 5,745 -8.56 0.0003
2025-08-14 2025-06-30 13F MARTEN TRANS COM 573075108 483,629 -11,429 -2.31 6,282 -7.51 0.0004
2025-05-12 2025-03-31 13F MARTEN TRANS COM 573075108 495,058 116,738 30.86 6,792 15.02 0.0004
2025-02-13 2024-12-31 13F MARTEN TRANS COM 573075108 378,320 161,088 74.15 5,906 53.58 0.0004
2024-11-13 2024-09-30 13F MARTEN TRANS COM 573075108 217,232 11,883 5.79 3,845 1.50 0.0002
2024-08-13 2024-06-30 13F MARTEN TRANS COM 573075108 205,349 91,297 80.05 3,789 79.78 0.0002
2024-05-13 2024-03-31 13F MARTEN TRANS COM 573075108 114,052 17,776 18.46 2,108 4.36 0.0001
2024-02-13 2023-12-31 13F MARTEN TRANS COM 573075108 96,276 -29,847 -23.66 2,020 -18.75 0.0002
2023-11-13 2023-09-30 13F MARTEN TRANS COM 573075108 126,123 -28,175 -18.26 2,486 -25.08 0.0002
2023-08-11 2023-06-30 13F MARTEN TRANS COM 573075108 154,298 -36 -0.02 3,317 2.60 0.0003
2023-08-11 2023-03-31 13F/A-1 MARTEN TRANS COM 573075108 154,334 8,564 5.88 3,233 12.14 0.0003
2023-05-11 2023-03-31 13F MARTEN TRANS COM 573075108 154,334 8,564 3,233 0.0001
2023-02-13 2022-12-31 13F MARTEN TRANS COM 573075108 145,770 -22,529 -13.39 2,883 -10.60 0.0003
2022-11-10 2022-09-30 13F MARTEN TRANS COM 573075108 168,299 13,007 8.38 3,225 23.47 0.0003
2022-08-12 2022-06-30 13F MARTEN TRANS COM 573075108 155,292 -83,001 -34.83 2,612 -38.28 0.0003
2022-05-13 2022-03-31 13F MARTEN TRANS COM 573075108 238,293 238,194 240,600.00 4,232 211,500.00 0.0003
2022-02-14 2021-12-31 13F MARTEN TRANS COM 573075108 99 0 0.00 2 0.00 0.0000
2022-02-14 2021-09-30 13F/A-1 MARTEN TRANS COM 573075108 99 0 0.00 2 0.00 0.0000
2021-11-15 2021-09-30 13F MARTEN TRANS COM 573075108 99 0 2 0.0000
2021-08-13 2021-06-30 13F MARTEN TRANS COM 573075108 99 -40,110 -99.75 2 -99.71 0.0000
2021-05-14 2021-03-31 13F MARTEN TRANS COM 573075108 40,209 -9,800 -19.60 683 -20.77 0.0001
2021-02-08 2020-12-31 13F MARTEN TRANS COM 573075108 50,009 -719,391 -93.50 862 -93.14 0.0001
2020-11-13 2020-09-30 13F MARTEN TRANS COM 573075108 769,400 32,397 4.40 12,557 -32.28 0.0013
2020-08-24 2020-06-30 13F/A-1 MARTEN TRANS COM 573075108 737,003 -90,655 -10.95 18,543 9.18 0.0020
2020-08-13 2020-06-30 13F MARTEN TRANS COM 573075108 737,003 -90,655 18,543 455.5472
2020-05-14 2020-03-31 13F MARTEN TRANS COM 573075108 827,658 191,065 30.01 16,984 24.13 0.0024
2020-02-07 2019-12-31 13F MARTEN TRANS COM 573075108 636,593 -40,756 -6.02 13,682 -2.79 0.0015
2019-11-13 2019-09-30 13F MARTEN TRANS COM 573075108 677,349 -70,997 -9.49 14,075 3.63 0.0017
2019-08-13 2019-06-30 13F MARTEN TRANS COM 573075108 748,346 -168,902 -18.41 13,582 -16.95 0.0016
2019-05-13 2019-03-31 13F MARTEN TRANS COM 573075108 917,248 550,088 149.82 16,354 175.13 0.0020
2019-02-13 2018-12-31 13F MARTEN TRANS COM 573075108 367,160 -5,340 -1.43 5,944 -24.20 0.0008
2018-11-09 2018-09-30 13F MARTEN TRANS COM 573075108 372,500 -231,505 -38.33 7,842 -44.63 0.0009
2018-08-10 2018-06-30 13F MARTEN TRANS COM 573075108 604,005 30,666 5.35 14,164 8.35 0.0017
2018-05-14 2018-03-31 13F MARTEN TRANS COM 573075108 573,339 -536,618 -48.35 13,073 -41.98 0.0016
2018-02-12 2017-12-31 13F MARTEN TRANS COM 573075108 1,109,957 -152,460 -12.08 22,533 -13.14 0.0026
2017-11-13 2017-09-30 13F MARTEN TRANS COM 573075108 1,262,417 819,009 184.71 25,943 113.54 0.0031
2017-08-29 2017-06-30 13F/A-1 MARTEN TRANS COM 573075108 443,408 308,408 228.45 12,149 283.73 0.0015
2017-08-11 2017-06-30 13F MARTEN TRANS COM 573075108 443,408 308,408 12,149
2017-05-11 2017-03-31 13F MARTEN TRANS COM 573075108 135,000 7,100 5.55 3,166 6.24 0.0004
2017-02-10 2016-12-31 13F MARTEN TRANS COM 573075108 127,900 127,900 2,980 0.0004
2016-11-14 2016-09-30 13F MARTEN TRANS COM 573075108 0 -149,200 -100.00 0 -100.00
2016-08-11 2016-06-30 13F MARTEN TRANS COM 573075108 149,200 149,200 0.00 2,954 0.0004
2015-08-13 2015-06-30 13F MARTEN TRANS COM 573075108 0 -49,853 -100.00 0 -100.00
2015-05-14 2015-03-31 13F MARTEN TRANS COM 573075108 49,853 -443,800 -89.90 1,157 -89.28 0.0001
2015-02-17 2014-12-31 13F MARTEN TRANS COM 573075108 493,653 106,953 27.66 10,791 56.69 0.0014
2014-11-14 2014-09-30 13F MARTEN TRANS COM 573075108 386,700 -59,159 -13.27 6,887 -30.89 0.0009
2014-08-14 2014-06-30 13F MARTEN TRANS COM 573075108 445,859 240,459 117.07 9,965 125.45 0.0013
2014-05-15 2014-03-31 13F MARTEN TRANS COM 573075108 205,400 -64,700 -23.95 4,420 -18.96 0.0006
2014-02-13 2013-12-31 13F MARTEN TRANS COM 573075108 270,100 93,200 52.69 5,454 79.76 0.0008
2013-11-14 2013-09-30 13F MARTEN TRANS COM 573075108 176,900 -69,700 -28.26 3,034 -21.48 0.0005
2013-09-24 2013-06-30 13F/A-1 MARTEN TRANS COM 573075108 246,600 246,600 3,864 0.0006
2013-08-14 2013-06-30 13F MARTEN TRANS COM 573075108 246,600 3,864 0.0006
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.