X0306 4 2020-11-17 0 0000799167 MARTEN TRANSPORT LTD MRTN 0001253983 TURNER JOHN H 129 MARTEN STREET MONDOVI WI 54755 0 1 0 0 Exec. VP of Sales & Marketing Common Stock 2020-11-17 4 M 0 10000 9.008 A 114821.47 D Common Stock 2020-11-17 4 S 0 10000 18.7504 D 104821.47 D Stock Option (right to buy) 9.008 2020-11-17 4 M 0 10000 0 D 2022-05-12 Common Stock 10000 9661 D Includes: (i) 2,483 shares granted under a Performance Unit Award Agreement that vest on 12/31/2020 through 12/31/2024; (ii) 4,020 shares granted under a Performance Unit Award Agreement that vest on 12/31/2020 through 12/31/2023; (iii) 2,655 shares granted under a Performance Unit Award Agreement that vest on 12/31/2020 through 12/31/2022; (iv) 4,450 shares granted under a Performance Unit Award Agreement that vest on 12/31/2020 through 12/31/2021; (v) 575 shares granted under a Performance Unit Award Agreement that vest on 12/31/2020; and (vi) 56,420.47 shares that the reporting person has deferred under the Issuer's deferred compensation plan. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $18.75 to $18.765, inclusive. The reporting person undertakes to provide to Marten Transport, Ltd., any security holder of Marten Transport, Ltd., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) to this Form 4. This option is fully vested. /s/ James J. Hinnendael, attorney-in-fact 2020-11-19