X0508 4 2026-03-13 0001012019 RUSH ENTERPRISES INC \TX\ RUSHA 0001211953 RUSH WILLIAM M RUSTY 555 IH 35 SOUTH, SUITE 500 NEW BRAUNFELS TX 78130 1 1 1 CEO, President and COB 0 Class B Common Stock 2026-03-13 4 A 0 50000 0 A 853344 D Class B Common Stock 2026-03-15 4 F 0 13773 59.69 D 839571 D Class B Common Stock 2026-03-15 4 F 0 9182 59.69 D 830389 D Class B Common Stock 2026-03-14 4 F 0 9182 59.69 D 821207 D Class A Common Stock 174154.50 D Class B Common Stock 6612102 I By 3MR Partners, L.P. Class A Common Stock 6184.50 I By 3MR Partners, L.P. Option (right to buy) 61.75 2026-03-13 4 A 0 35000 0 A 2036-03-13 Class A Common Stock 35000 35000 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 and certain shares included in the Company's deferred compensation plan. 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 certain shares included in the Company's deferred compensation 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/ Steven L. Keller, Attorney in Fact for W.M. "Rusty" Rush 2026-03-17