X0306 4 2022-01-07 0 0001069258 KRATOS DEFENSE & SECURITY SOLUTIONS, INC. KTOS 0001509409 Carrai Phillip D 10680 TREENA STREET, SUITE 600 SAN DIEGO CA 92131 0 1 0 0 President, STC Division Common Stock 2022-01-07 4 F 0 15909 19.98 D 162813 D Common Stock 46644 I by trust Shares withheld in a net transaction to satisfy the minimum tax liability, in accordance with Issuer's trading policies, in connection with shares vested January 4, 2022 from performance restricted stock units granted in 2019 as reported on a Form 4 filed January 5, 2022 and released January 7, 2022. Includes 11,385 shares purchased through Issuer's Employee Stock Purchase Plan and approximately 1,291 shares held through Issuer's 401(k) Plan. Phillip D. Carrai, by Eva Yee, Attorney-In-Fact 2022-01-07