Marten Transport, Ltd.
US ˙ NasdaqGS ˙ US5730751089

SecurityMRTN / Marten Transport, Ltd.
InstitutionAlliancebernstein L.p.
Latest Disclosed Ownership358,019 shares
Latest Disclosed Value $ 4,074,256
Alliancebernstein L.p. reports 374.71% increase in ownership of MRTN / Marten Transport, Ltd.

On May 15, 2026 - Alliancebernstein L.p. filed a 13F-HR form disclosing ownership of 358,019 shares of Marten Transport, Ltd. (US:MRTN) valued at $4,700,789 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 75,419 shares of Marten Transport, Ltd.. This represents a change in shares of 374.71% during the quarter. The current value of the position is $6,354,837 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 358,019 282,600 374.71 4,074 374.83 0.0013
2026-02-17 2025-12-31 13F MARTEN TRANS COM 573075108 75,419 -1,271 -1.66 858 5.02 0.0003
2025-11-14 2025-09-30 13F MARTEN TRANS COM 573075108 76,690 1,271 1.69 818 -16.55 0.0003
2025-08-14 2025-06-30 13F MARTEN TRANS COM 573075108 75,419 0 0.00 980 -5.32 0.0003
2025-05-15 2025-03-31 13F MARTEN TRANS COM 573075108 75,419 0 0.00 1,035 -12.15 0.0004
2025-02-12 2024-12-31 13F MARTEN TRANS COM 573075108 75,419 0 0.00 1,177 -11.77 0.0004
2024-11-14 2024-09-30 13F MARTEN TRANS COM 573075108 75,419 0 0.00 1,335 -4.10 0.0004
2024-08-14 2024-06-30 13F MARTEN TRANS COM 573075108 75,419 0 0.00 1,391 -0.14 0.0005
2024-05-14 2024-03-31 13F MARTEN TRANS COM 573075108 75,419 0 0.00 1,394 -11.95 0.0005
2024-02-14 2023-12-31 13F MARTEN TRANS COM 573075108 75,419 0 0.00 1,582 6.46 0.0006
2023-11-14 2023-09-30 13F MARTEN TRANS COM 573075108 75,419 4,660 6.59 1,487 -2.30 0.0006
2023-08-15 2023-06-30 13F MARTEN TRANS COM 573075108 70,759 0 0.00 1,521 2.63 0.0006
2023-05-15 2023-03-31 13F MARTEN TRANS COM 573075108 70,759 -7,328 -9.38 1,482 -4.02 0.0006
2023-02-15 2022-12-31 13F MARTEN TRANS COM 573075108 78,087 59 0.08 1,545 3.28 0.0007
2022-11-15 2022-09-30 13F MARTEN TRANS COM 573075108 78,028 190 0.24 1,495 14.21 0.0007
2022-08-15 2022-06-30 13F MARTEN TRANS COM 573075108 77,838 1,469 1.92 1,309 -3.47 0.0006
2022-05-13 2022-03-31 13F MARTEN TRANS COM 573075108 76,369 5,894 8.36 1,356 12.16 0.0005
2022-02-14 2021-12-31 13F MARTEN TRANS COM 573075108 70,475 -31,021 -30.56 1,209 -24.06 0.0004
2021-11-10 2021-09-30 13F MARTEN TRANS COM 573075108 101,496 22,733 28.86 1,592 22.56 0.0006
2021-07-30 2021-06-30 13F MARTEN TRANS COM 573075108 78,763 3,338 4.43 1,299 1.48 0.0005
2021-05-06 2021-03-31 13F MARTEN TRANS COM 573075108 75,425 -8,758 -10.40 1,280 -11.72 0.0006
2021-02-08 2020-12-31 13F MARTEN TRANS COM 573075108 84,183 -1,981 -2.30 1,450 3.13 0.0007
2020-11-12 2020-09-30 13F MARTEN TRANS COM 573075108 86,164 27,541 46.98 1,406 -4.68 0.0008
2020-08-13 2020-06-30 13F MARTEN TRANS COM 573075108 58,623 3,751 6.84 1,475 30.99 0.0009
2020-05-14 2020-03-31 13F MARTEN TRANS COM 573075108 54,872 3,300 6.40 1,126 1.62 0.0008
2020-02-18 2019-12-31 13F MARTEN TRANS COM 573075108 51,572 1,400 2.79 1,108 6.23 0.0006
2019-11-14 2019-09-30 13F MARTEN TRANS COM 573075108 50,172 -6,210 -11.01 1,043 1.96 0.0006
2019-08-14 2019-06-30 13F MARTEN TRANS COM 573075108 56,382 15,800 38.93 1,023 41.30 0.0006
2019-05-14 2019-03-31 13F MARTEN TRANS COM 573075108 40,582 0 0.00 724 10.20 0.0005
2019-02-13 2018-12-31 13F MARTEN TRANS COM 573075108 40,582 0 0.00 657 -23.07 0.0005
2018-11-08 2018-09-30 13F MARTEN TRANS COM 573075108 40,582 0 0.00 854 -10.29 0.0006
2018-08-13 2018-06-30 13F MARTEN TRANS COM 573075108 40,582 -1,300 -3.10 952 -0.31 0.0007
2018-05-14 2018-03-31 13F MARTEN TRANS COM 573075108 41,882 1,300 3.20 955 15.90 0.0007
2018-02-13 2017-12-31 13F MARTEN TRANS COM 573075108 40,582 0 0.00 824 -1.20 0.0006
2017-11-13 2017-09-30 13F MARTEN TRANS COM 573075108 40,582 16,232 66.66 834 25.04 0.0006
2017-08-10 2017-06-30 13F MARTEN TRANS COM 573075108 24,350 4,800 24.55 667 45.63 0.0005
2017-05-11 2017-03-31 13F MARTEN TRANS COM 573075108 19,550 -3,664 -15.78 458 -15.34 0.0004
2017-02-13 2016-12-31 13F MARTEN TRANS COM 573075108 23,214 12,439 115.44 541 139.38 0.0005
2016-11-10 2016-09-30 13F MARTEN TRANS COM 573075108 10,775 -200 -1.82 226 4.15 0.0002
2016-08-11 2016-06-30 13F MARTEN TRANS COM 573075108 10,975 10,975 0.00 217 0.0002
2015-11-13 2015-09-30 13F MARTEN TRANS COM 573075108 0 -15,750 -100.00 0 -100.00
2015-08-14 2015-06-30 13F MARTEN TRANS COM 573075108 15,750 -5,200 -24.82 342 -29.63 0.0003
2015-05-13 2015-03-31 13F MARTEN TRANSPORT COM 573075108 20,950 -800 -3.68 486 2.32 0.0004
2015-02-13 2014-12-31 13F MARTEN TRANSPORT COM 573075108 21,750 -4,900 -18.39 475 0.00 0.0004
2014-11-13 2014-09-30 13F MARTEN TRANSPORT COM 573075108 26,650 -7,800 -22.64 475 -38.31 0.0004
2014-08-13 2014-06-30 13F MARTEN TRANSPORT COM 573075108 34,450 24,438 244.09 770 258.14 0.0006
2014-05-13 2014-03-31 13F MARTEN TRANSPORT COM 573075108 10,012 -4,757 -32.21 215 -27.85 0.0002
2014-02-13 2013-12-31 13F MARTEN TRANSPORT COM 573075108 14,769 -7,000 -32.16 298 -20.11 0.0003
2013-11-14 2013-09-30 13F MARTEN TRANSPORT COM 573075108 21,769 -2,981 -12.04 373 -3.87 0.0004
2013-08-13 2013-06-30 13F MARTEN TRANSPORT COM 573075108 24,750 24,750 388 0.0004
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.