X0508 4 2025-04-11 1 0000894081 Air Transport Services Group, Inc. ATSG 0001236458 WILLIAMS PAUL S 145 HUNTER DR WILMINGTON OH 45177 1 0 Common Stock 2025-04-11 4 M 0 27107 0 A 27107 D Common Stock 2025-04-11 4 D 0 27107 22.50 D 0 D Restricted Stock Units 2025-04-11 4 M 0 27107 D Common Stock 27107 0 D Each restricted stock unit subject to one or more time-based vesting conditions ("Company RSUs") represented a contingent right to receive one Share upon vesting of the Company RSUs. Under the Agreement and Plan of Merger by and between Air Transport Services Group, Inc. ("Company"), Stonepeak Nile Parent LLC, a Delaware limited liability company ("Parent") and Stonepeak Nile MergerCo Inc., a Delaware corporation and wholly-owned subsidiary of Parent, dated as of November 3, 2024 (the "Merger Agreement"). At the effective time of the merger contemplated by the Merger Agreement (the "Effective Time"), each Company RSU vested and was cancelled, with the holder of such Company RSU becoming entitled to receive a lump-sum cash payment, without interest, equal to the product, rounded to the nearest cent, of (i) the number of Shares subject to such Company RSU immediately prior to the Effective Time and (ii) the Merger Consideration. POA on file. /s/ W. Joseph Payne for Paul S. Williams 2025-04-15