| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Marshall Robert J. Jr. | CFO and Treasurer | C/O LANTHEUS HOLDINGS, INC., 201 BURLINGTON ROAD, SOUTH BUILDING, BEDFORD | /s/ Eric M. Green, attorney-in-fact | 03 Sep 2025 | 0001754976 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | LNTH | Common Stock | Tax liability | $39,912 | -727 | -0.82% | $54.90 | 88,133 | 29 Aug 2025 | Direct |