X0508 4 2026-03-13 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 B Common Stock 2026-03-13 4 A 0 4188 0 A 100449 D Class B Common Stock 2026-03-15 4 F 0 7508 59.69 D 92941 D Class B Common Stock 2026-03-15 4 F 0 7643 59.69 D 85298 D Class B Common Stock 2026-03-14 4 F 0 4895 59.69 D 80403 D Class B Common Stock 182434 I By Trust Class B Common Stock 1000 I Joint Account with Spouse 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. Shares are held in the Michael J. McRoberts Trust, a revocable trust of which the reporting person is the sole trustee. The reporting person disclaims beneficial ownership of the reported securities, except to the extent of his pecuniary interest therein. /s/ Steven L. Keller, Attorney in Fact for Michael McRoberts 2026-03-17