| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Carlini James F. | EVP, Chief Technology Officer | 1750 PRESIDENTS STREET, RESTON | /s/ Ramune M. Kligys, by PoA of James Frank Carlini | 18 Nov 2025 | 0001926985 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | LDOS | Common Stock | Tax liability | $15,688 | -82 | -0.35% | $191.32 | 23,222 | 14 Nov 2025 | Direct | F1 |
| Id | Content |
|---|---|
| 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. |