| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Morgan Amanda Michelle | Chief Commercial Officer | C/O LANTHEUS HOLDINGS, INC., 201 BURLINGTON ROAD, SOUTH BUILDING, BEDFORD | /s/ Eric M. Green, attorney-in-fact | 17 Dec 2025 | 0002018026 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | LNTH | Common Stock | Tax liability | $33,279 | -356 | -1.4% | $93.48 | 25,055 | 15 Dec 2024 | Direct | F1 |
| transaction | LNTH | Common Stock | Tax liability | $24,498 | -368 | -0.93% | $66.57 | 39,094 | 15 Dec 2025 | Direct | F2 |
| Id | Content |
|---|---|
| F1 | Such amount excludes securities acquired or disposed of subsequent to December 15, 2024. |
| F2 | Includes 143 shares acquired under the LNTH employee stock purchase plan on March 13, 2025, and 95 shares acquired under the LNTH employee stock purchase plan on September 12, 2025. |