THOMAS E. MILLS IV - 03 Jan 2026 Form 4 Insider Report for KRATOS DEFENSE & SECURITY SOLUTIONS, INC. (KTOS)

Role
President, C5ISR Division
Signature
Thomas E. Mills, by Eva Yee, Attorney-In-Fact
Issuer symbol
KTOS
Transactions as of
03 Jan 2026
Net transactions value
-$513,561
Form type
4
Filing time
06 Jan 2026, 20:38:19 UTC
Previous filing
04 Sep 2025
Next filing
09 Jan 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
MILLS THOMAS E IV President, C5ISR Division 10680 TREENA STREET, SUITE 600, SAN DIEGO Thomas E. Mills, by Eva Yee, Attorney-In-Fact 06 Jan 2026 0001080997

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction KTOS Common Stock Options Exercise $0 +3,000 +31% $0.000000 12,821 03 Jan 2026 Direct F3, F9
transaction KTOS Common Stock Tax liability $110,134 -1,389 -11% $79.29 11,432 03 Jan 2026 Direct F8, F9
transaction KTOS Common Stock Options Exercise $0 +3,000 +26% $0.000000 14,432 03 Jan 2026 Direct F4, F9
transaction KTOS Common Stock Tax liability $100,857 -1,272 -8.8% $79.29 13,160 03 Jan 2026 Direct F8, F9
transaction KTOS Common Stock Options Exercise $0 +3,000 +23% $0.000000 16,160 03 Jan 2026 Direct F5, F9
transaction KTOS Common Stock Tax liability $100,857 -1,272 -7.9% $79.29 14,888 03 Jan 2026 Direct F8, F9
transaction KTOS Common Stock Options Exercise $0 +3,000 +20% $0.000000 17,888 04 Jan 2026 Direct F6, F9
transaction KTOS Common Stock Tax liability $100,857 -1,272 -7.1% $79.29 16,616 04 Jan 2026 Direct F8, F9
transaction KTOS Common Stock Options Exercise $0 +3,000 +18% $0.000000 19,616 04 Jan 2026 Direct F7, F9
transaction KTOS Common Stock Tax liability $100,857 -1,272 -6.5% $79.29 18,344 04 Jan 2026 Direct F8, F9

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction KTOS Restricted Stock Units Award $0 +25,000 $0.000000 25,000 03 Jan 2026 Common Stock 25,000 Direct F1, F2
transaction KTOS Restricted Stock Units Options Exercise $0 -3,000 -50% $0.000000 3,000 03 Jan 2026 Common Stock 3,000 Direct F1, F3
transaction KTOS Restricted Stock Units Options Exercise $0 -3,000 -33% $0.000000 6,000 03 Jan 2026 Common Stock 3,000 Direct F1, F4
transaction KTOS Restricted Stock Units Options Exercise $0 -3,000 -20% $0.000000 12,000 03 Jan 2026 Common Stock 3,000 Direct F1, F5
transaction KTOS Restricted Stock Units Options Exercise $0 -3,000 -100% $0.000000 0 04 Jan 2026 Common Stock 3,000 Direct F1, F6
transaction KTOS Restricted Stock Units Options Exercise $0 -3,000 -25% $0.000000 9,000 04 Jan 2026 Common Stock 3,000 Direct F1, F7
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Each restricted stock unit (RSU) represents a contingent right to receive one share of Issuer's common stock.
F2 RSUs vest ratably on each of the first five anniversaries of the date of grant, unless earlier vested or terminated pursuant to the terms of the RSU agreement.
F3 RSUs were granted and previously reported on a Form 4 filed January 5, 2022, where 15,000 RSUs vest ratably on each of the first five anniversaries of the January 3, 2022 date of grant.
F4 RSUs were granted and previously reported on a Form 4 filed January 5, 2023, where 15,000 RSUs vest ratably on each of the first five anniversaries of the January 3, 2023 date of grant.
F5 RSUs were granted and previously reported on a Form 4 filed January 7, 2025, where 15,000 RSUs vest ratably on each of the first five anniversaries of the January 3, 2025 date of grant.
F6 RSUs were granted and previously reported on a Form 4 filed January 5, 2021, where 15,000 RSUs vest ratably on each of the first five anniversaries of the January 4, 2021 date of grant.
F7 RSUs were granted and previously reported on a Form 4 filed January 5, 2024, where 15,000 RSUs vest ratably on each of the first five anniversaries of the January 4, 2024 date of grant.
F8 Shares withheld in a net transaction to satisfy the tax liability, in accordance with Issuer's trading policies, in connection with shares vested as reported in this Form 4.
F9 Includes 374 shares purchased through Issuer's Employee Stock Purchase Plan and approximately 3,689 shares held through Issuer's 401(k).