X0508 4 2024-04-01 0001833756 Leonardo DRS, Inc. DRS 0001849652 Wallace Sally C/O LEONARDO DRS, INC. ARLINGTON VA 22202 1 EVP, Business Operations 0 Common Stock 2024-04-01 4 M 0 7252 0 A 19501 D Common Stock 2024-04-01 4 F 0 2415 21.52 D 17086 D Restricted Stock Unit 2024-04-01 4 M 0 7252 0 D Common Stock 7252 14504 D Each restricted stock unit ("RSU") was granted under the Issuer's 2022 Omnibus Equity Compensation Plan, and represents a contingent right to receive one share of the common stock of the Issuer or the cash equivalent thereof. One-third of the RSU's vested on April 1, 2024. The remaining RSUs are scheduled to vest one-third annually on each of April 1, 2025 and April 1, 2026, subject to the Reporting Person's continued employment with the Issuer through each date. The number of RSUs that vest on each of April 1, 2024 and April 1, 2025 shall be rounded down to the nearest whole number of RSUs and the remaining RSUs shall vest on April 1, 2026. Shares withheld by the Company to satisfy tax withholding requirements. /s/ Katherine A. Krebel, Attorney-in-Fact 2024-04-03