Marten Transport, Ltd.
US ˙ NasdaqGS ˙ US5730751089

SecurityMRTN / Marten Transport, Ltd.
InstitutionCreative Planning
Latest Disclosed Ownership398,513 shares
Latest Disclosed Value $ 5,232,476
Creative Planning reports 7.90% increase in ownership of MRTN / Marten Transport, Ltd.

On May 12, 2026 - Creative Planning filed a 13F-HR form disclosing ownership of 398,513 shares of Marten Transport, Ltd. (US:MRTN) valued at $5,232,476 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 369,345 shares of Marten Transport, Ltd.. This represents a change in shares of 7.90% during the quarter. The current value of the position is $6,981,948 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)
2026-05-12 2026-03-31 13F MARTEN TRANS COM 573075108 398,513 29,168 7.90 5,232 24.48 0.0035
2026-02-17 2025-12-31 13F MARTEN TRANS COM 573075108 369,345 196,694 113.93 4,203 128.42 0.0030
2025-11-14 2025-09-30 13F MARTEN TRANS COM 573075108 172,651 63,863 58.70 1,840 30.22 0.0014
2025-08-08 2025-06-30 13F MARTEN TRANS COM 573075108 108,788 46,574 74.86 1,413 65.65 0.0012
2025-05-15 2025-03-31 13F MARTEN TRANS COM 573075108 62,214 11,695 23.15 854 8.25 0.0008
2025-02-14 2024-12-31 13F MARTEN TRANS COM 573075108 50,519 34,350 212.44 789 175.52 0.0008
2024-10-11 2024-09-30 13F MARTEN TRANS COM 573075108 16,169 -6,178 -27.65 286 -30.58 0.0003
2024-08-15 2024-06-30 13F MARTEN TRANS COM 573075108 22,347 22,347 412 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.