Leidos Holdings, Inc. (LDOS) · Insider Trading (Form 4) SEC Filing

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-05-08 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: Leidos Holdings, Inc. (LDOS) CIK: 0001336920 --- Reporting Owner --- Name: Norton Nancy A CIK: 0001943956 Role: Director --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-05-08 | Code: A (Grant or award) Shares: +1,067 | Price: $0.00 Shares Owned After: 3,144 | Ownership: D (Direct) --- Derivative Transactions --- [Transaction #1] Security: Stock Option (Right to Buy) Date: 2026-05-08 | Code: A (Grant or award) Shares: +1,281 | Price: $0.00 Exercisable: N/A | Expires: 2033-05-07 Shares Owned After: 1,281 | Ownership: D (Direct) Footnotes: [F1] The option shall vest and become exercisable in full on the earlier of (i) the first anniversary of the Grant Date, or (ii) the date that the next annual meeting of the stockholders of the Company is concluded. --- Footnotes (Complete Index) --- F1: The option shall vest and become exercisable in full on the earlier of (i) the first anniversary of the Grant Date, or (ii) the date that the next annual meeting of the stockholders of the Company is concluded. --- Signature --- /s/ /s/ Ramune M. Kligys by PoA of Nancy A. Norton (2026-05-12)