X0508 4/A 2025-02-16 2025-02-18 0000879526 WABASH NATIONAL Corp WNC 0001759750 Glazner Mary Kristin 3900 MCCARTY LANE LAFAYETTE IN 47905 0 1 0 0 Chief Administrative Officer 0 Common Stock 2025-02-16 4 F 0 21188 12.40 D 141203 D This amended Form 4 is filed to correct an error in the previously reported shares for taxes, which was inadvertently reported as 14,110 in the original filing. The correct number of shares for taxes is 21,188. Reflects a reduction of 6 shares to correct an inadvertent error on the reporting person's Form 4 filed on February 16, 2024, which overreported the number of RSUs granted by 6 shares. /s/Mary Kristin Glazner 2025-03-18