---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-21-016991"
form_type: "8-K"
ticker: "MRTN"
cik: "0000799167"
company_name: "MARTEN TRANSPORT LTD"
filed_at: "2021-07-15T23:59:59+00:00"
generated_at: "2026-06-30T05:16:10.296296+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Marten Transport Q2 record revenue $232.4M, net income up 18.1% to $21.4M

## Summary
- Diluted EPS $0.26 vs $0.22 in Q2 2020; net income $21.4M, up 18.1%.
- Operating revenue record $232.4M (+9.4% YoY); operating income record $28.5M (+12.9%).
- Operating ratio net of fuel surcharges improved to 86.0%, best since 1986 IPO.
- First-half 2021 net income $39.4M (+23.8%); operating income $52.5M (+21.3%).
- Management cites tight freight market and driver shortage driving pricing improvements.

## SEC filing metadata
- accession: 0001437749-21-016991
- form_type: 8-K
- ticker: MRTN
- cik: 0000799167
- company_name: MARTEN TRANSPORT LTD
- filed_at: 2021-07-15T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/799167/000143774921016991/0001437749-21-016991-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/799167/000143774921016991/mrtn20210714_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-21-016991
- JSON: https://secwatch.observer/filing/0001437749-21-016991.json
- Plain text: https://secwatch.observer/filing/0001437749-21-016991.txt

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