X0609 4 2026-08-14 0 0001069258 KRATOS DEFENSE & SECURITY SOLUTIONS, INC. KTOS 0001082440 DEMARCO ERIC M false 10680 TREENA STREET, SUITE 600 SAN DIEGO CA 92131 1 1 0 0 President & CEO 1 Common Stock 2026-08-14 4 S 0 19638 63.3317 D 1041994 I by trust Common Stock 2026-08-14 4 S 0 266316 64.3321 D 775678 I by trust Common Stock 2026-08-14 4 S 0 4946 65.0538 D 770732 I by trust Common Stock 2026-08-14 4 S 0 9100 66.1729 D 761632 I by trust Common Stock 63036 D This transaction was effected pursuant to a 10b5-1 trading plan adopted by the reporting person on March 6, 2026 and modified on May 15, 2026. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $62.77 to $63.76 inclusive. The reporting person undertakes to provide to Issuer, any security holder of Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $63.77 to $64.76 inclusive. The reporting person undertakes to provide to Issuer, any security holder of Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $64.77 to $65.68 inclusive. The reporting person undertakes to provide to Issuer, any security holder of Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $65.89 to $66.88 inclusive. The reporting person undertakes to provide to Issuer, any security holder of Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4. In addition to the 761,632 shares and 63,036 shares reported in Column 5, as of August 14, 2026, 745,000 deferred restricted stock units (RSUs) granted to Mr. DeMarco, representing non-qualified deferred compensation, have vested but remain subject to a previously agreed to 5-year deferral period before issuance and release, which substantially all subject RSUs are scheduled to be released by January 2029, and an additional 750,000 RSUs granted to Mr. DeMarco are currently unvested and will only vest upon achievement of applicable vesting terms described in our proxy statement on Schedule 14A filed with the SEC on April 2, 2026. Each RSU represents a contingent right to receive one share of the Company's common stock. Includes 43,925 shares purchased through Issuer's Employee Stock Purchase Plan and approximately 19,111 shares held through Issuer's 401(k) Plan. Eric M. DeMarco, by Eva Yee, Attorney-In-Fact 2026-08-14