MARTEN TRANSPORT LTD — Director's Dealing 2008

May 1, 2008

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MARTEN TRANSPORT LTD (MRTN)
CIK: 0000799167
Period of Report: 2008-05-01

Reporting Person: SMITH ROBERT G (Chief Operating Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2008-05-01	Common Stock	M	3638	$4.36	Acquired	3638	Direct
2008-05-01	Common Stock	S	3638	$17.34	Disposed	0	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2008-05-01	Stock Option (right to buy)	$4.36	M	3638	Disposed	2010-01-24	Common Stock (3638)	Direct

Footnotes

F1: This option has fully vested.