X0306 4/A 2015-02-23 2015-02-25 0000879526 WABASH NATIONAL CORP /DE WNC 0001471738 Weber Mark Jason 1000 SAGAMORE PARKWAY SOUTH LAFAYETTE IN 47905 0 1 0 0 SVP, Group President, DPG Common Stock 2015-02-23 4 M 0 9950 0 A 94305 D Common Stock 2015-02-23 4 F 0 8907 14.17 D 85398 D Restricted Stock Unit 2015-02-23 4 M 0 9950 D 2015-02-23 2015-02-23 Common Stock 9950 0 D Tax withholding of performance stock unit and restricted stock unit, granted on 2/23/12 and vested on 2/23/15, was previously reported, but the settlement of the restricted stock unit was inadvertantly left off of the Form 4. This amendment reflects the vesting of the restricted stock unit, the award of which was orginally reported on Table II of a Form 5 filed on 2/12/13. Automated sale upon vest of performance stock units and restricted stock units granted on 2/23/12 for purposes of paying taxes due at time of vest Each restricted stock unit converted to one share of WNC common stock as of date of vesting on 2/23/2015. Mark J. Weber 2015-02-26