| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Porter Elizabeth A | Sector President | 1750 PRESIDENTS STREET, RESTON | /s/ Ramune M. Kligys by PoA of Elizabeth M. Porter | 25 Feb 2026 | 0001820381 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | LDOS | Common Stock | Options Exercise | $202,273 | +3,240 | +6.7% | $62.43 | 51,263 | 23 Feb 2026 | Direct | |
| transaction | LDOS | Common Stock | Tax liability | $382,568 | -2,205 | -4.3% | $173.50 | 49,058 | 23 Feb 2026 | Direct | F1 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | LDOS | Stock Option (Right to Buy) | Options Exercise | $0 | -3,240 | -100% | $0.000000 | 0 | 23 Feb 2026 | Common Stock | 3,240 | $62.43 | Direct |
| Id | Content |
|---|---|
| F1 | Represents shares of common stock withheld by the issuer in connection with the option exercise to cover the exercise price and associated fees. |