---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-22-003545"
form_type: "8-K"
ticker: "MRTN"
cik: "0000799167"
company_name: "MARTEN TRANSPORT LTD"
filed_at: "2022-02-16T23:59:59+00:00"
generated_at: "2026-06-27T07:45:16.055278+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Marten Transport expands dry truckload into Mexico; Dry Regional revenue up 26.4% in 2021

## Summary
- Began hauling dry van products between Mexico and U.S.; first load delivered Feb 11, 2022.
- Dry Regional Truckload operating revenue increased 26.4% YoY; operating income up 81.8%.
- Expansion uses terminals in Dallas, Laredo, and Otay Mesa alongside existing facilities.
- New dry service complements MRTN de Mexico's refrigerated operations, broadening customer offering.

## SEC filing metadata
- accession: 0001437749-22-003545
- form_type: 8-K
- ticker: MRTN
- cik: 0000799167
- company_name: MARTEN TRANSPORT LTD
- filed_at: 2022-02-16T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/799167/000143774922003545/0001437749-22-003545-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/799167/000143774922003545/mrtn20220215_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-22-003545
- JSON: https://secwatch.observer/filing/0001437749-22-003545.json
- Plain text: https://secwatch.observer/filing/0001437749-22-003545.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.