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  4. [Form 4] KRATOS DEFENSE & SECURITY SOLUTIONS, INC. Insider Trading Activity

Kratos (KTOS) C5ISR president reports equity awards and tax share withholding

Filing Impact
(Very High)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Kratos Defense & Security Solutions executive Thomas E. Mills IV, President of the C5ISR Division, reported equity compensation activity in company common stock. On March 4, 2026, he acquired three blocks of 5,000 shares each at $0.00 per share through the settlement of prior Performance Restricted Stock Unit Awards granted on January 3, 2022, January 4, 2024, and January 3, 2025.

On the same date, 2,121 shares were disposed of in each of three separate transactions at $89.13 per share, with the shares withheld to cover tax liabilities in connection with the vesting, consistent with company trading policies. After these transactions, he directly held 12,730 shares, including 374 shares from the Employee Stock Purchase Plan and approximately 3,719 shares held through the company’s 401(k) Plan.

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Insider MILLS THOMAS E IV
Role President, C5ISR Division
Type Security Shares Price Value
Grant/Award Common Stock 5,000 $0.00 --
Tax Withholding Common Stock 2,121 $89.13 $189K
Grant/Award Common Stock 5,000 $0.00 --
Tax Withholding Common Stock 2,121 $89.13 $189K
Grant/Award Common Stock 5,000 $0.00 --
Tax Withholding Common Stock 2,121 $89.13 $189K
Holdings After Transaction: Common Stock — 9,093 shares (Direct)
Footnotes (1)
  1. Shares acquired pursuant to the settlement of a Performance Restricted Stock Unit Award granted on January 3, 2022. Shares acquired pursuant to the settlement of a Performance Restricted Stock Unit Award granted on January 4, 2024. Shares acquired pursuant to the settlement of a Performance Restricted Stock Unit Award granted on January 3, 2025. 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. Includes 374 shares purchased through Issuer's Employee Stock Purchase Plan and approximately 3,719 shares held through Issuer's 401(k) Plan.
Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number: 3235-0287
Estimated average burden
hours per response: 0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
MILLS THOMAS E IV
(Last) (First) (Middle)
10680 TREENA STREET, SUITE 600
(Street)
SAN DIEGO CA 92131
(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
KRATOS DEFENSE & SECURITY SOLUTIONS, INC. [ KTOS ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
X Officer (give title below) Other (specify below)
President, C5ISR Division
3. Date of Earliest Transaction (Month/Day/Year)
03/04/2026
4. If Amendment, Date of Original Filed (Month/Day/Year)
 6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 03/04/2026 A 5,000(1) A $0 9,093(5) D
Common Stock 03/04/2026 F 2,121(4) D $89.13 6,972(5) D
Common Stock 03/04/2026 A 5,000(2) A $0 11,972(5) D
Common Stock 03/04/2026 F 2,121(4) D $89.13 9,851(5) D
Common Stock 03/04/2026 A 5,000(3) A $0 14,851(5) D
Common Stock 03/04/2026 F 2,121(4) D $89.13 12,730(5) D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Explanation of Responses:
1. Shares acquired pursuant to the settlement of a Performance Restricted Stock Unit Award granted on January 3, 2022.
2. Shares acquired pursuant to the settlement of a Performance Restricted Stock Unit Award granted on January 4, 2024.
3. Shares acquired pursuant to the settlement of a Performance Restricted Stock Unit Award granted on January 3, 2025.
4. 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.
5. Includes 374 shares purchased through Issuer's Employee Stock Purchase Plan and approximately 3,719 shares held through Issuer's 401(k) Plan.
Thomas E. Mills, by Eva Yee, Attorney-In-Fact 03/06/2026
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

Source: View Original Filing on SEC EDGAR

FAQ

What insider transactions did KTOS executive Thomas E. Mills IV report?

Thomas E. Mills IV reported acquisitions from vested performance stock units and share dispositions for taxes. He received three 5,000‑share grants and had three 2,121‑share withholdings to satisfy tax liabilities related to those awards on March 4, 2026.

Were the KTOS insider share disposals open-market sales?

The disposals were not open-market sales. The Form 4 labels each as a tax-withholding disposition, where 2,121 shares were withheld per transaction to cover tax liabilities when performance-based restricted stock units vested.

How many KTOS shares does Thomas E. Mills IV hold after these transactions?

After the reported transactions, Thomas E. Mills IV directly holds 12,730 shares of Kratos common stock. This total includes 374 shares purchased through the Employee Stock Purchase Plan and approximately 3,719 shares held via the company’s 401(k) Plan.

What equity awards vested for KTOS executive Thomas E. Mills IV?

The filing shows settlement of Performance Restricted Stock Unit Awards for Thomas E. Mills IV. These awards were originally granted on January 3, 2022, January 4, 2024, and January 3, 2025, and were settled in 5,000 common shares each on March 4, 2026.

What does transaction code F mean in the KTOS Form 4 filing?

Transaction code F in this Form 4 indicates shares delivered to pay tax liabilities. For Thomas E. Mills IV, 2,121 shares were withheld in each of three transactions at $89.13 per share related to newly vested performance stock unit awards.