MRTN · Marten Transport Ltd

These shares granted under a Performance Unit Award Agreement will vest in equal increments over five years beginning on December 31, 2026.

Includes: (i) 4,817 shares granted under a Performance Award Agreement that vest on 12/31/2026 through 12/31/2030; (ii) 3,966 shares granted under a Performance Award Agreement that vest on 12/31/2026 through 12/31/2029; (iii) 2,239 shares granted under a Performance Award Agreement that vest on 12/31/2026 through 12/31/2028; (iv) 600 shares granted under a Performance Award Agreement that vest on 12/31/2026 through 12/31/2027; (v) 300 shares granted under a Performance Award Agreement that vest on 12/31/2026.

These shares granted under a Performance Unit Award Agreement will vest in equal increments over five years beginning on December 31, 2026.

Includes: (i) 6,766 shares granted under a Performance Award Agreement that vest on 12/31/2026 through 12/31/2030; (ii) 5,446 shares granted under a Performance Award Agreement that vest on 12/31/2026 through 12/31/2029; (iii) 3,078 shares granted under a Performance Award Agreement that vest on 12/31/2026 through 12/31/2028; (iv) 1,765 shares granted under a Performance Award Agreement that vest on 12/31/2026 through 12/31/2027; and (v) 1,053 shares granted under a Performance Award Agreement that vest on 12/31/2026.

These shares granted under a Performance Unit Award Agreement will vest in equal increments over five years beginning on December 31, 2026.

Includes: (i) 12,300 shares granted under a Performance Award Agreement that vest on 12/31/2026 through 12/31/2030; (ii) 10,812 shares granted under a Performance Award Agreement that vest on 12/31/2026 through 12/31/2029; (iii) 6,108 shares granted under a Performance Award Agreement that vest on 12/31/2026 through 12/31/2028; (iv) 3,506 shares granted under a Performance Award Agreement that vest on 12/31/2026 through 12/31/2027; and (v) 2,091 shares granted under a Performance Award Agreement that vest on 12/31/2026.

These shares granted under a Performance Unit Award Agreement will vest in equal increments over five years beginning on December 31, 2026.

Includes: (i) 6,423 shares granted under a Performance Award Agreement that vest on 12/31/2026 through 12/31/2030; (ii) 5,300 shares granted under a Performance Award Agreement that vest on 12/31/2026 through 12/31/2029; (iii) 2,994 shares granted under a Performance Award Agreement that vest on 12/31/2026 through 12/31/2028; (iv) 1,719 shares granted under a Performance Award Agreement that vest on 12/31/2026 through 12/31/2027; and (v) 1,025 shares granted under a Performance Award Agreement that vest on 12/31/2026.

These shares granted under a Performance Unit Award Agreement will vest in equal increments over five years beginning on December 31, 2026.

Includes: (i) 4,661 shares granted under a Performance Award Agreement that vest on 12/31/2026 through 12/31/2030; (ii) 4,098 shares granted under a Performance Award Agreement that vest on 12/31/2026 through 12/31/2029; (iii) 2,314 shares granted under a Performance Award Agreement that vest on 12/31/2026 through 12/31/2028; (iv) 600 shares granted under a Performance Award Agreement that vest on 12/31/2026 through 12/31/2027; and (v) 300 shares granted under a Performance Award Agreement that vest on 12/31/2026.

Of the 5,531 shares that vested, this number of shares were withheld in exchange for payment of employee taxes. All vested shares were previously reported as they vested based on service.

Includes: (i) 5,446 shares granted under a Performance Award Agreement that vest on 12/31/2026 through 12/31/2029; (ii) 3,078 shares granted under a Performance Award Agreement that vest on 12/31/2026 through 12/31/2028; (iii) 1,765 shares granted under a Performance Award Agreement that vest on 12/31/2026 through 12/31/2027; and (iv) 1,053 shares granted under a Performance Award Agreement that vest on 12/31/2026.

Of the 4,407 shares that vested, this number of shares were withheld in exchange for payment of employee taxes. All vested shares were previously reported as they vested based on service.

Includes: (i) 5,300 shares granted under a Performance Award Agreement that vest on 12/31/2026 through 12/31/2029; (ii) 2,994 shares granted under a Performance Award Agreement that vest on 12/31/2026 through 12/31/2028; (iii) 1,719 shares granted under a Performance Award Agreement that vest on 12/31/2026 through 12/31/2027; and (iv) 1,025 shares granted under a Performance Award Agreement that vest on 12/31/2026.

Of the 2,596 shares that vested, this number of shares were withheld in exchange for payment of employee taxes. All vested shares were previously reported as they vested based on service.

Includes: (i) 4,098 shares granted under a Performance Award Agreement that vest on 12/31/2026 through 12/31/2029; (ii) 2,314 shares granted under a Performance Award Agreement that vest on 12/31/2026 through 12/31/2028; (iii) 600 shares granted under a Performance Award Agreement that vest on 12/31/2026 through 12/31/2027; and (iv) 300 shares granted under a Performance Award Agreement that vest on 12/31/2026.

Of the 10,983 shares that vested, this number of shares were withheld in exchange for payment of employee taxes. All vested shares were previously reported as they vested based on service.

Includes: (i) 10,812 shares granted under a Performance Award Agreement that vest on 12/31/2026 through 12/31/2029; (ii) 6,108 shares granted under a Performance Award Agreement that vest on 12/31/2026 through 12/31/2028; (iii) 3,506 shares granted under a Performance Award Agreement that vest on 12/31/2026 through 12/31/2027; and (iv) 2,091 shares granted under a Performance Award Agreement that vest on 12/31/2026.

Of the 2,538 shares that vested, this number of shares were withheld in exchange for payment of employee taxes. All vested shares were previously reported as they vested based on service.

Includes: (i) 3,966 shares granted under a Performance Award Agreement that vest on 12/31/2026 through 12/31/2029; (ii) 2,239 shares granted under a Performance Award Agreement that vest on 12/31/2026 through 12/31/2028; (iii) 600 shares granted under a Performance Award Agreement that vest on 12/31/2026 through 12/31/2027; and (iv) 300 shares granted under a Performance Award Agreement that vest on 12/31/2026.

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.

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

Includes: (i) 6,807 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025 through 12/31/2029; (ii) 4,103 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025 through 12/31/2028; (iii) 2,648 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025 through 12/31/2027; (iv) 2,107 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025 through 12/31/2026; and (v) 1,208 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025.

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

Includes: (i) 5,122 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025 through 12/31/2029; (ii) 3,086 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025 through 12/31/2028; (iii) 900 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025 through 12/31/2027; (iv) 600 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025 through 12/31/2026; and (v) 200 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025.

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.

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

Includes: (i) 4,957 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025 through 12/31/2029; (ii) 2,986 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025 through 12/31/2028; (iii) 900 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025 through 12/31/2027; (iv) 600 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025 through 12/31/2026; and (v) 200 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025.

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

Includes: (i) 12,408 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025 through 12/31/2029; (ii) 7,477 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025 through 12/31/2028; (iii) 4,828 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025 through 12/31/2027; (iv) 3,841 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025 through 12/31/2026; and (v) 2,090 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025.

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

Includes: (i) 6,625 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025 through 12/31/2029; (ii) 3,992 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025 through 12/31/2028; (iii) 2,578 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025 through 12/31/2027; (iv) 2,050 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025 through 12/31/2026; and (v) 200 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025.

The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $12.815385 to $12.90, 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 purchased at each separate price within the ranges set forth in footnote (1) to this Form 4.

Of the 3,382 shares that vested, this number of shares were withheld in exchange for payment of employee taxes. All vested shares were previously reported as they vested based on service.

Includes: (i) 3,992 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025 through 12/31/2028; (ii) 2,578 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025 through 12/31/2027; (iii) 2,050 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025 through 12/31/2026; and (iv) 200 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025.

Of the 1,872 shares that vested, this number of shares were withheld in exchange for payment of employee taxes. All vested shares were previously reported as they vested based on service.

Includes: (i) 3,086 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025 through 12/31/2028; (ii) 900 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025 through 12/31/2027; (iii) 600 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025 through 12/31/2026; and (iv) 200 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025.

Of the 8,243 shares that vested, this number of shares were withheld in exchange for payment of employee taxes. All vested shares were previously reported as they vested based on service.

Includes: (i) 7,477 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025 through 12/31/2028; (ii) 4,828 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025 through 12/31/2027; (iii) 3,841 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025 through 12/31/2026; and (iv) 2,090 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025.

Of the 4,674 shares that vested, this number of shares were withheld in exchange for payment of employee taxes. All vested shares were previously reported as they vested based on service.

Includes: (i) 4,103 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025 through 12/31/2028; (ii) 2,648 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025 through 12/31/2027; (iii) 2,107 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025 through 12/31/2026; and (iv) 1,208 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025.

Of the 9,344 shares that vested, this number of shares were withheld in exchange for payment of employee taxes. All vested shares were previously reported as they vested based on service.

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

Of the 1,847 shares that vested, this number of shares were withheld in exchange for payment of employee taxes. All vested shares were previously reported as they vested based on service.

Includes: (i) 2,986 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025 through 12/31/2028; (ii) 900 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025 through 12/31/2027; (iii) 600 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025 through 12/31/2026; and (iv) 200 shares granted under a Performance Unit Award Agreement that vest on 12/31/2025.

The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $15.76 to $15.82, 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 purchased at each separate price within the ranges set forth in footnote (1) to this Form 4.

Includes: (i) 10,179 shares granted under a Performance Unit Award Agreement that vest on 12/31/2024 through 12/31/2028; (ii) 7,012 shares granted under a Performance Unit Award Agreement that vest on 12/31/2024 through 12/31/2027; (iii) 6,274 shares granted under a Performance Unit Award Agreement that vest on 12/31/2024 through 12/31/2026; (iv) 4,800 shares granted under a Performance Unit Award Agreement that vest on 12/31/2024 through 12/31/2025; and (v) 1,064 shares granted under a Performance Unit Award Agreement that vest on 12/31/2024.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $18.3401 to $18.35, 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.

Includes: (i) 3,858 shares granted under a Performance Unit Award Agreement that vest on 12/31/2024 through 12/31/2028; (ii) 1,200 shares granted under a Performance Unit Award Agreement that vest on 12/31/2024 through 12/31/2027; (iii) 900 shares granted under a Performance Unit Award Agreement that vest on 12/31/2024 through 12/31/2026; (iv) 400 shares granted under a Performance Unit Award Agreement that vest on 12/31/2024 through 12/31/2025; and (v) 300 shares granted under a Performance Unit Award Agreement that vest on 12/31/2024.

Includes: (i) 3,858 shares granted under a Performance Unit Award Agreement that vest on 12/31/2024 through 12/31/2028; (ii) 1,200 shares granted under a Performance Unit Award Agreement that vest on 12/31/2024 through 12/31/2027; (iii) 900 shares granted under a Performance Unit Award Agreement that vest on 12/31/2024 through 12/31/2026; (iv) 400 shares granted under a Performance Unit Award Agreement that vest on 12/31/2024 through 12/31/2025; and (v) 300 shares granted under a Performance Unit Award Agreement that vest on 12/31/2024.

All shares are vested.

Includes: (i) 4,990 shares granted under a Performance Unit Award Agreement that vest on 12/31/2024 through 12/31/2028; (ii) 3,437 shares granted under a Performance Unit Award Agreement that vest on 12/31/2024 through 12/31/2027; (iii) 3,075 shares granted under a Performance Unit Award Agreement that vest on 12/31/2024 through 12/31/2026; (iv) 400 shares granted under a Performance Unit Award Agreement that vest on 12/31/2024 through 12/31/2025; and (v) 300 shares granted under a Performance Unit Award Agreement that vest on 12/31/2024.

This option has fully vested.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $18.22 to $18.2401, 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.

Includes: (i) 4,990 shares granted under a Performance Unit Award Agreement that vest on 12/31/2024 through 12/31/2028; (ii) 3,437 shares granted under a Performance Unit Award Agreement that vest on 12/31/2024 through 12/31/2027; (iii) 3,075 shares granted under a Performance Unit Award Agreement that vest on 12/31/2024 through 12/31/2026; (iv) 400 shares granted under a Performance Unit Award Agreement that vest on 12/31/2024 through 12/31/2025; and (v) 300 shares granted under a Performance Unit Award Agreement that vest on 12/31/2024.

These shares granted under a Performance Unit Award Agreement will vest in equal increments over five years beginning on December 31, 2024.

Includes: (i) 3,733 shares granted under a Performance Unit Award Agreement that vest on 12/31/2024 through 12/31/2028; (ii) 1,200 shares granted under a Performance Unit Award Agreement that vest on 12/31/2024 through 12/31/2027; (iii) 900 shares granted under a Performance Unit Award Agreement that vest on 12/31/2024 through 12/31/2026; (iv) 400 shares granted under a Performance Unit Award Agreement that vest on 12/31/2024 through 12/31/2025; and (v) 300 shares granted under a Performance Unit Award Agreement that vest on 12/31/2024.