| Amanda Michelle Morgan | Chief Commercial Officer | Tax Withhold | 2025-12-15 | 368 | $24K |
| Daniel Niedzwiecki | Chief Administrative Officer, General Counsel and Corporate Secretary | Tax Withhold | 2026-03-02 | 8,259 | $630K |
| Amanda Michelle Morgan | Chief Commercial Officer | Tax Withhold | 2026-03-02 | 3,336 | $255K |
| Robert J. Marshall Jr. | CFO and Treasurer | Tax Withhold | 2026-03-02 | 10,652 | $813K |
| Mary Anne Heino | Executive Chair and CEO | Tax Withhold | 2026-03-02 | 41,916 | $3.2M |
| Daniel Niedzwiecki | Chief Administrative Officer, General Counsel and Corporate Secretary | Tax Withhold | 2026-03-05 | 1,283 | $98K |
| Robert J. Marshall Jr. | CFO and Treasurer | Tax Withhold | 2026-03-05 | 1,182 | $90K |
| Kimberly Brown | Chief Accounting Officer | Tax Withhold | 2026-03-05 | 133 | $10K |
| Amanda Michelle Morgan | Chief Commercial Officer | Tax Withhold | 2026-03-05 | 595 | $45K |
| Daniel Niedzwiecki | Chief Administrative Officer, General Counsel and Corporate Secretary | Tax Withhold | 2026-04-17 | 1,911 | $160K |
| Gerard Ber | — | Tax Withhold | 2026-05-14 | 381 | $37K |
| Mary Anne Heino | Executive Chair and CEO | Tax Withhold | 2026-05-14 | 1,227 | $119K |
| Ludger Dinkelborg | Head of Research and Development | Tax Withhold | 2026-08-17 | 2,536 | $256K |
| Kimberly Brown | Chief Accounting Officer | Tax Withhold | 2026-08-17 | 463 | $47K |
| Robert J. Marshall Jr. | CFO and Treasurer | Tax Withhold | 2026-08-31 | 721 | $73K |
| Lantheus Holdings, Inc. | — | Sale | 2026-08-31 | 78,145 | $246K |
| Lantheus Holdings, Inc. | — | Sale | 2026-09-01 | 35,769 | $112K |
| Lantheus Alpha Therapy, LLC | — | Sale | 2026-09-02 | 42,129 | $131K |
| Lantheus Alpha Therapy, LLC | — | Sale | 2026-09-03 | 80,783 | $251K |
| Lantheus Alpha Therapy, LLC | — | Sale | 2026-09-04 | 167,149 | $526K |