| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Blanchfield Paul | President | C/O LANTHEUS HOLDINGS, INC., 201 BURLINGTON ROAD, SOUTH BUILDING, BEDFORD | /s/ Eric M. Green, attorney-in-fact | 17 Jul 2025 | 0001801395 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | LNTH | Common Stock | Tax liability | $42,093 | -518 | -0.46% | $81.26 | 111,274 | 15 Jul 2025 | Direct |