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

Rhea-AI Filing Summary

Kratos Defense & Security Solutions (KTOS) reported an insider transaction by its SVP & General Counsel, Marie C. Mendoza. On 10/15/2025, she sold 1,440 shares of common stock at $97.10 per share, executed under a Rule 10b5-1 trading plan adopted on March 17, 2025.

After the sale, she beneficially owns 60,396 shares directly, which includes 2,144 shares purchased through the Employee Stock Purchase Plan and approximately 14,107 shares held through the company’s 401(k) Plan.

Insights

Securities law analyst

Routine Form 4 sale under a pre-set 10b5-1 plan; neutral.

KTOS disclosed a Form 4 for its SVP & General Counsel selling 1,440 shares at $97.10 on 10/15/2025. The sale was made pursuant to a Rule 10b5-1 plan adopted on March 17, 2025, indicating trades were pre-arranged.

Following the transaction, reported beneficial ownership is 60,396 shares direct, including 2,144 ESPP shares and approximately 14,107 held via the 401(k) Plan. This filing records insider activity; actual impact depends on ongoing corporate performance and future disclosures.

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).

X

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^*

Mendoza Marie

(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)
	SVP & General Counsel

3. Date of Earliest Transaction (Month/Day/Year)
10/15/2025

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	10/15/2025		S		1,440(1)	D	$97.1	60,396(2)	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. This transaction was effected pursuant to a 10b5-1 trading plan adopted by the reporting person on March 17, 2025.

2. Includes 2,144 shares purchased through Issuer's Employee Stock Purchase Plan and approximately 14,107 shares held through Issuer's 401(k) Plan.

	Marie C. Mendoza, by Eva Yee, Attorney-In-Fact	10/17/2025
	** 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.

FAQ

What insider transaction did KTOS report?

The SVP & General Counsel sold 1,440 shares of common stock at $97.10 on 10/15/2025.

Was the KTOS insider sale under a 10b5-1 plan?

Yes. The sale was effected under a Rule 10b5-1 trading plan adopted on March 17, 2025.

How many KTOS shares does the insider own after the sale?

Beneficial ownership is 60,396 shares directly after the reported transaction.

What plans contribute to the insider’s KTOS share holdings?

Holdings include 2,144 ESPP shares and approximately 14,107 shares via the 401(k) Plan.

What is the role of the reporting person at KTOS?

The reporting person is an Officer, serving as SVP & General Counsel.