Thomas E. Mills IV - 07 Jan 2026 Form 4 Insider Report for KRATOS DEFENSE & SECURITY SOLUTIONS, INC. (KTOS)

Reporting relationship: President, C5ISR Division
Issuer ticker: KTOS
Reported as of: 07 Jan 2026
Net transaction value: -$792,451
SEC form: 4
Accepted by SEC: 09 Jan 2026, 20:46:43 UTC
Prior SEC filing: 06 Jan 2026
Next SEC filing: 04 Mar 2026
Source filing: View source filing
Reporting owner signature: Thomas E. Mills, by Eva Yee, Attorney-In-Fact

Key filing fact

Thomas E. Mills IV filed Form 4 for KRATOS DEFENSE & SECURITY SOLUTIONS, INC. (KTOS) on 09 Jan 2026.

Key facts

This page summarizes Thomas E. Mills IV's Form 4 filing for KRATOS DEFENSE & SECURITY SOLUTIONS, INC. (KTOS).
4 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 09 Jan 2026, 20:46.

Change

Previous filing in this sequence was filed on 06 Jan 2026.
Current net transaction value: -$792,451.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001080997 Primary reporting owner

MILLS THOMAS E IV

Relationship: President, C5ISR Division
Address: 10680 TREENA STREET, SUITE 600, SAN DIEGO
Signature: Thomas E. Mills, by Eva Yee, Attorney-In-Fact
Signature date: 09 Jan 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

KTOS transaction

Common Stock

Sale

Transaction value: $304,561
Shares: -3,323
Change %: -18%
Price: $91.65
Shares after: 15,002
Date: 07 Jan 2026
Ownership: Direct
Footnotes: F1, F2, F6

KTOS transaction

Common Stock

Sale

Transaction value: $92,564
Shares: -1,000
Change %: -6.7%
Price: $92.56
Shares after: 14,002
Date: 07 Jan 2026
Ownership: Direct
Footnotes: F1, F3, F6

KTOS transaction

Common Stock

Sale

Transaction value: $196,598
Shares: -2,100
Change %: -15%
Price: $93.62
Shares after: 11,902
Date: 07 Jan 2026
Ownership: Direct
Footnotes: F1, F4, F6

KTOS transaction

Common Stock

Sale

Transaction value: $198,728
Shares: -2,100
Change %: -18%
Price: $94.63
Shares after: 9,802
Date: 07 Jan 2026
Ownership: Direct
Footnotes: F1, F5, F6

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 6 footnotes

Footnote F1

This transaction was effected pursuant to a 10b5-1 trading plan adopted by the reporting person on June 3, 2025.

Footnote F2

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $91.06 to $92.02 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.

Footnote F3

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $92.06 to $92.88 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.

Footnote F4

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $93.10 to $94.09 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.

Footnote F5

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $94.15 to $95.12 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.

Footnote F6

Includes 374 shares purchased through Issuer's Employee Stock Purchase Plan and approximately 3,670 shares held through Issuer's 401(k).