UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 Commission file number 0-15010 MARTEN TRANSPORT, LTD. (Exact name of registrant as specified in its charter) Delaware 39-1140809 (State of incorporation) (I.R.S. Employer Identification no.) 129 Marten Str ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the Quarter ended September 30, 2023 Commission File Number 0-15010 MARTEN TRANSPORT, LTD. (Exact name of registrant as specified in its charter) 129 Marten Street Mondovi, Wisconsin 54755 715-926-4216 (Address of principal executive offices) ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the Quarter ended June 30, 2023 Commission File Number 0-15010 MARTEN TRANSPORT, LTD. (Exact name of registrant as specified in its charter) 129 Marten Street Mondovi, Wisconsin 54755 715-926-4216 (Address of principal executive offices) (Reg ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the Quarter ended March 31, 2023 Commission File Number 0-15010 MARTEN TRANSPORT, LTD. (Exact name of registrant as specified in its charter) 129 Marten Street Mondovi, Wisconsin 54755 715-926-4216 (Address of principal executive offices) (Registrant's ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 Commission file number 0-15010 MARTEN TRANSPORT, LTD. (Exact name of registrant as specified in its charter) Delaware 39-1140809 (State of incorporation) (I.R.S. Employer Identification no.) 129 Marten Str ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 (Exact name of registrant as specified in its charter) 129 Marten Street Mondovi, Wisconsin 54755 715-926-4216 (Address of principal executive offices) (Registrant's telephone number) Delaware 39-1140809 (State of incorporation) (I.R.S. employer identification no.) Form 10-Q ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities E ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the Quarter ended June 30, 2022 Commission File Number 0-15010 MARTEN TRANSPORT, LTD. (Exact name of registrant as specified in its charter) 129 Marten Street Mondovi, Wisconsin 54755 715-926-4216 (Address of principal executive offices) (Reg ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the Quarter ended March 31, 2022 Commission File Number 0-15010 MARTEN TRANSPORT, LTD. (Exact name of registrant as specified in its charter) 129 Marten Street Mondovi, Wisconsin 54755 715-926-4216 (Address of principal executive offices) (Re ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 0R 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 Commission file number 0-15010 MARTEN TRANSPORT, LTD. (Exact name of registrant as specified in its charter) Delaware 39-1140809 (State of incorporation) (I.R.S. Employer Identification no.) 129 Marten Str ...

MARTEN TRANSPORT Q4 2021 THE THE THE PERSONAL PRODUCTION ULTARATECTED PERSENTAANS Disclosure | --- | --- | |-------------------------------------------------------------------------------------------------------------|-------| | | | | This presentation and discussion will contain forward-looking statements within the meaning of the | | | | | | Private Securities Litigation Reform Act of 1995. Words | | | such as "expects," "anticipates," "intends," "estimates," or | | | similar expressions are intended to i ...