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: 2026-05-03 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: Leidos Holdings, Inc. (LDOS) CIK: 0001336920 --- Reporting Owner --- Name: Antal Daniel J. CIK: 0002016615 Role: Officer (EVP, General Counsel) --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-05-03 | Code: F (Payment of exercise/tax) Shares: -188 | Price: $149.23 Total Value: $28,055.24 Shares Owned After: 14,241 | Ownership: D (Direct) Footnotes: [F1] These shares were withheld by the Company to satisfy the reporting person's tax obligation associated with previously reported awards of restricted stock units. This share withholding was authorized in the restricted stock award agreement. [Transaction #2] Security: Common Stock Date: 2026-05-03 | Code: F (Payment of exercise/tax) Shares: -18 | Price: $149.23 Total Value: $2,686.14 Shares Owned After: 10,727.9015 | Ownership: I (Indirect) | Nature: By Key Executive Stock Deferral Plan Footnotes: [F1] These shares were withheld by the Company to satisfy the reporting person's tax obligation associated with previously reported awards of restricted stock units. This share withholding was authorized in the restricted stock award agreement. [Transaction #3] Security: Common Stock Date: 2026-05-03 | Code: A (Grant or award) Shares: +8.9762 | Price: $0.00 Shares Owned After: 10,736.8777 | Ownership: I (Indirect) | Nature: By Key Executive Stock Deferral Plan Footnotes: [F2] Dividend equivalent rights. --- Footnotes (Complete Index) --- F1: These shares were withheld by the Company to satisfy the reporting person's tax obligation associated with previously reported awards of restricted stock units. This share withholding was authorized in the restricted stock award agreement. F2: Dividend equivalent rights. --- Signature --- /s/ /s/ Ramune M. Kligys by PoA of Daniel J. Antal (2026-05-06)