---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-22-001575"
form_type: "8-K"
ticker: "MRTN"
cik: "0000799167"
company_name: "MARTEN TRANSPORT LTD"
filed_at: "2022-01-25T23:59:59+00:00"
generated_at: "2026-06-27T16:04:18.731183+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Marten Transport Q4 net income up 26.1% to $24.7M; record full-year revenue $973.6M

## Summary
- Net income Q4 $24.7M ($0.30 EPS) vs $19.6M ($0.24) year ago; full-year net income $85.4M ($1.02 EPS) up 22.9%.
- Operating revenue Q4 $266.9M (+17.4%); full year $973.6M (+11.4%); both are company records.
- Operating income Q4 $30.7M (+20.0%), full year $111.7M (+19.8%); also record highs.
- Operating expenses as % of revenue net of fuel surcharges improved to 87.0% for 2021, best since becoming public in 1986.

## SEC filing metadata
- accession: 0001437749-22-001575
- form_type: 8-K
- ticker: MRTN
- cik: 0000799167
- company_name: MARTEN TRANSPORT LTD
- filed_at: 2022-01-25T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/799167/000143774922001575/0001437749-22-001575-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/799167/000143774922001575/mrtn20220123_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-22-001575
- JSON: https://secwatch.observer/filing/0001437749-22-001575.json
- Plain text: https://secwatch.observer/filing/0001437749-22-001575.txt

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