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HEARTLAND ADVISORS INC

Position in MRTN — Marten Transport Ltd

CIK 937394 MILWAUKEE, WI

Position in MRTN

as of Jun 30, 2026 · filed Aug 11, 2026
Position Value
$6,072,500
+$1,477,000 QoQ
Shares Held
350,000
0.0% QoQ
Ownership
0.429%
of shares outstanding
% of Portfolio
0.27%
of 13F equity value
Holder Rank
#35
of 228 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in MRTN Over Time

Shares Held

Position Value (USD)

Position in Trucking

Industrials · as of Jun 30, 2026

HEARTLAND ADVISORS INC holds $21,861,900 across 2 Trucking names. MRTN ranks #2 (27.8% of the industry book) .

# Ticker Company Shares Value (USD) Open
2 MRTN
Marten Transport Ltd
This page
350,000 $6,072,500

All Filings in MRTN

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26 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $6,072,500 350,000
2026-03-31 $4,595,500 350,000
2025-12-31 $3,414,000 300,000
2025-09-30 $4,264,000 400,000
2025-06-30 $5,196,000 400,000
2025-03-31 $4,116,000 300,000
2024-12-31 $2,341,500 150,000
2024-09-30 $2,655,000 150,000
2024-06-30 $2,767,500 150,000
2024-03-31 $2,772,000 150,000
2023-12-31 $3,147,000 150,000
2023-09-30 $2,956,500 150,000
2023-06-30 $3,225,000 150,000
2023-03-31 $3,142,500 150,000
2022-12-31 $2,967,000 150,000
2022-09-30 $2,874,000 150,000
2022-06-30 $2,523,000 150,000
2022-03-31 $2,664,000 150,000
2021-12-31 $2,574,000 150,000
2021-09-30 $2,353,500 150,000
2021-06-30 $2,473,500 150,000
2021-03-31 $2,545,500 150,000
2020-12-31 $2,584,500 150,000
2020-09-30 $2,448,000 150,000
2020-06-30 $2,515,995 100,000
2020-03-31 $2,052,000 100,000