RANDOLPH L. MARTEN - 06 May 2025 Form 4 Insider Report for MARTEN TRANSPORT LTD (MRTN)

Role: Exec. Chairman of the Board, Director, 10%+ Owner
Signature: /s/ James J. Hinnendael, attorney-in-fact
Issuer symbol: MRTN
Transactions as of: 06 May 2025
Transactions value $: $0
Form type: 4
Filing time: 08 May 2025, 16:54:14 UTC
Previous filing: 12 Mar 2025
Next filing: 19 Aug 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
MARTEN RANDOLPH L	Exec. Chairman of the Board, Director, 10%+ Owner	C/O MARTEN TRANSPORT, LTD., 129 MARTEN STREET, MONDOVI	/s/ James J. Hinnendael, attorney-in-fact	08 May 2025	0001253979

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MRTN	Common Stock	Award	$0	+13.5K	+0.08%	$0.00	17.7M	06 May 2025	Direct	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	These shares granted under a Performance Unit Award Agreement will vest in equal increments over five years beginning on December 31, 2025.
F2	Includes: (i) 13,515 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025 through 12/31/2029; (ii) 8,144 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025 through 12/31/2028; (iii) 5,259 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025 through 12/31/2027; (iv) 4,182 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025 through 12/31/2026; and (v) 2,400 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025.

Content

These shares granted under a Performance Unit Award Agreement will vest in equal increments over five years beginning on December 31, 2025.

Includes: (i) 13,515 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025 through 12/31/2029; (ii) 8,144 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025 through 12/31/2028; (iii) 5,259 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025 through 12/31/2027; (iv) 4,182 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025 through 12/31/2026; and (v) 2,400 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025.