X0508 4 2026-02-19 0001012019 RUSH ENTERPRISES INC \TX\ RUSHA 0001572136 McRoberts Michael 555 IH 35 SOUTH, SUITE 500 NEW BRAUNFELS TX 78130 1 1 Senior Advisor and Director 0 Class A Common Stock 2026-02-19 4 M 0 8000 15.06 A 24229.339 D Class A Common Stock 2026-02-19 4 S 0 8000 70.8087 D 16229.339 D Option (right to buy) 15.06 2026-02-19 4 M 0 8000 0 D 2027-03-15 Class A Common Stock 8000 0 D Includes 242.5765 shares acquired on July 1, 2025, and 215.4659 shares acquired on January 1, 2026, under the Rush Enterprises, Inc. Employee Stock Purchase Plan. This price is a weighted average price. These shares were sold in multiple transactions at prices ranging from $70.275 to $71.11. The reporting person undertakes to provide Rush Enterprises, Inc., any security holder of Rush Enterprises, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. 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 Michael McRoberts 2026-02-23