SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO. ) Filed by the registrant [X] Filed by a party other than the registrant [ ] Check the appropriate box: [ ] Preliminary proxy statement. [ ] Confidential, for use of the Commission only (as permitted by Rule 14a-6(e)(2)). [ ] Definitive proxy statement. [X] Definitive additional materials. [ ] Soliciting material pursuant to Section 240.14a-12 WABASH NATIONAL CORPORATION -------------------------------------------------------------------------------- (Name of Registrant as Specified in Its Charter) -------------------------------------------------------------------------------- (Name of Person(s) Filing Proxy Statement if Other Than the Registrant) Payment of filing fee (check the appropriate box): [X] No fee required. [ ] Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11. 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Identify the previous filing by registration statement number, or the form or schedule and the date of its filing. (1) Amount Previously Paid: -------------------------------------------------------------------------------- (2) Form, Schedule or Registration Statement No.: -------------------------------------------------------------------------------- (3) Filing Party: -------------------------------------------------------------------------------- (4) Date Filed: -------------------------------------------------------------------------------- [WABASH NATIONAL CORPORATION LETTERHEAD] LETTER FROM THE CHAIRMAN To Our Stockholders: April 26, 2002 The year 2001 proved to be the most difficult in the history of Wabash National Corporation. While the financial results for 2001 were staggering, so too were the challenges, as the U.S. truck trailer industry experienced the most dramatic decline in its history. Industry demand for truck trailers was off approximately 15% and 48% during 2000 and 2001, respectively. The decline resulted from difficult overall economic conditions in the United States economy and challenges in the motor carrier industry caused by reduced freight volumes, high fuel prices, high insurance costs, deeply depressed used truck values, and a significant contraction in available capital to the transportation industry. As a result, there were a record number of bankruptcies in the transportation industry in 2001. In response, the Board of Directors and management of the Company acted swiftly and aggressively to address these challenges by rationalizing manufacturing capacity, normalizing used trailer inventories, divesting of non-performing international operations, implementing significant cost reductions, refinancing its debt obligations, and appointing new leadership. During 2001 and early 2002, the Company closed two of its three trailer assembly plants, slashed used trailer inventories and prices, eliminated 2,000 salary and hourly positions, divested its European operations, closed on a series of very complex and critical financing transactions, and appointed a new President and Chief Executive Officer. I am pleased to announce that your Board has selected William P. Greubel to become President and CEO of the Company beginning in May, 2002. We believe Bill is an outstanding executive with a proven track record of superior leadership compiled during an exceptional career spanning more than twenty-five years with some of America's leading manufacturers, and more importantly, is the right executive to successfully lead the Company through the challenges which lie ahead. The Board of Directors wishes especially to thank Donald J. "Jerry" Ehrlich for his vision and energy, as the founder of Wabash National Corporation, and for his service as a Director of the Company. Jerry worked tirelessly to build Wabash National into the preeminent organization in the truck trailer industry and is a recognized leader in the transportation industry. We wish him well in his future endeavors. As the Company embarks on a new beginning, intact are the core competencies which have made it successful in the past, including its core customer base, its proprietary products, and its retail distribution business. We believe the Company can be successful with these fundamental strengths when combined with a renewed focus, leaner operations, and new leadership. We thank our stockholders, customers, associates, and suppliers for their support during the very challenging period for the Company. Collectively, we have positioned the Company for future success for all of our stakeholders. Sincerely, /s/ John T. Hackett John T. Hackett Chairman of the Board of Directors STOCKHOLDER INFORMATION EXECUTIVE OFFICERS Richard E. Dessimoz Acting Chief Executive Officer and Director Mark R. Holden Senior Vice President - Chief Financial Officer and Director Arthur R. Brown Senior Vice President - Chief Operating Officer Rodney P. Ehrlich Senior Vice President - Product Development Lawrence J. Gross Senior Vice President - Marketing Derek L. Nagle Senior Vice President and President of North American Trailer Centers(TM) AUDITORS Andersen LLP 111 Monument Circle Suite 4300 Indianapolis, Indiana 46204 TRANSFER AGENT National City Bank Corporate Trust Operations PO Box 92301 Cleveland, Ohio 44193-0900 Telephone: 1-800-622-6757 STOCK LISTING Symbol: WNC New York Stock Exchange DIRECTORS David C. Burdakin President HON Company Richard E. Dessimoz Acting Chief Executive Officer Wabash National Corporation John T. Hackett Chairman of the Board of Directors Wabash National Corporation E. Hunter Harrison Executive Vice President and Chief Operating Officer Canadian National Railway Company Mark R. Holden Senior Vice President - Chief Financial Officer Wabash National Corporation Dr. Martin C. Jischke President Purdue University Ludvik F. Koci Vice Chairman and Chief Executive Officer Detroit Diesel Corporation REQUESTS If stockholders request information or assistance, please write or telephone: Wabash National Corporation c/o Investor Relations PO Box 6129 Lafayette, Indiana 47903 (765) 771-5310 INTERNET ADDRESS http://www.wabashnational.com