---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-22-005010"
form_type: "8-K"
ticker: "MRTN"
cik: "0000799167"
company_name: "MARTEN TRANSPORT LTD"
filed_at: "2022-03-02T23:59:59+00:00"
generated_at: "2026-06-27T02:39:46.971913+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Marten Transport amends credit agreement: waives dividend/redemption limit to $80M in FY2022, switches to SOFR

## Summary
- Twelfth Amendment waives 25% net-income limit on buybacks/dividends, allows up to $80M in FY2022.
- Benchmark rate converted from LIBOR to term SOFR; margins increase and are tied to cash flow leverage ratio.
- Two-month interest periods eliminated; benchmark replacement mechanism added if SOFR unavailable.
- Prior amendments allowed $60M (FY2020) and $80M (FY2021) for restricted payments; extended to FY2022.

## SEC filing metadata
- accession: 0001437749-22-005010
- form_type: 8-K
- ticker: MRTN
- cik: 0000799167
- company_name: MARTEN TRANSPORT LTD
- filed_at: 2022-03-02T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 1.01, 2.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/799167/000143774922005010/0001437749-22-005010-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/799167/000143774922005010/mrtn20220301_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-22-005010
- JSON: https://secwatch.observer/filing/0001437749-22-005010.json
- Plain text: https://secwatch.observer/filing/0001437749-22-005010.txt

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