X0306 4 2020-09-10 0 0001012019 RUSH ENTERPRISES INC \TX\ RUSH 0001300922 Thor James E 555 IH 35 SOUTH, SUITE 500 NEW BRAUNFELS TX 78130 0 1 0 0 Senior Vice President Class A Common Stock 2020-09-10 4 A 0 21.593 48.3 A 23337.2422 D Class B Common Stock 2020-09-10 4 A 0 57.2989 42.3 A 76380.7641 D These shares were acquired pursuant to a dividend reinvestment feature of the Rush Enterprises, Inc. Deferred Compensation Plan. Includes certain shares included in the Rush Enterprises, Inc. Deferred Compensation Plan. Includes 301 shares acquired July 1, 2020, under the Rush Enterprises, Inc. Employee Stock Purchase Plan and also corrects an administrative error in the Form 4s filed for this reporting person on June 9 and 12, 2020. Includes unvested restricted stock and certain shares and unvested restricted stock units included in the Rush Enterprises, Inc. Deferred Compensation Plan. Steven L. Keller, Attorney in Fact for James E. Thor 2020-09-14