X0508 4 2026-03-13 0001012019 RUSH ENTERPRISES INC \TX\ RUSHA 0002015783 Wilder Jason 555 IH 35 SOUTH, SUITE 500 NEW BRAUNFELS TX 78130 1 Chief Operating Officer 0 Class B Common Stock 2026-03-13 4 A 0 22000 0 A 101692 D Class B Common Stock 2026-03-15 4 F 0 3719 59.69 D 97973 D Class B Common Stock 2026-03-15 4 F 0 2479 59.69 D 95494 D Class B Common Stock 2026-03-14 4 F 0 3024 59.69 D 92470 D Class A Common Stock 838.0087 D Option (right to buy) 61.75 2026-03-13 4 A 0 10000 0 A 2036-03-13 Class A Common Stock 10000 10000 D Reflects the grant of restricted stock. The restricted stock vests in increments of 1/3 on each of the first, second and third anniversary of the grant date, which is March 13, 2026. Includes shares of unvested restricted stock. Shares reported are shares not reported to the reporting person in order to satisfy the reporting person's tax obligations with respect to vesting associated with the grant of restricted stock that occurred on March 15, 2023. The price reported was the closing share price on March 13, 2026. Shares reported are shares not reported to the reporting person in order to satisfy the reporting person's tax obligations with respect to vesting associated with the grant of restricted stock that occurred on March 15, 2024. Shares reported are shares not reported to the reporting person in order to satisfy the reporting person's tax obligations with respect to vesting associated with the grant of restricted stock that occurred on March 14, 2025. Includes 68.5244 shares acquired on July 1, 2025, and 65.4307 shares acquired on January 1, 2026, under the Rush Enterprises, Inc. Employee Stock Purchase Plan. Options may be exercised in increments of 1/3 on each anniversary of the grant date beginning on the third anniversary of the grant date. The grant date is ten years prior to the expiration date. /s/ Matthew D. Willcox, as Attorney in Fact for Jason Wilder 2026-03-17