Lantheus Holdings's top three insider shareholders as of June 06, 2026 are Rajiv A Patel (Other, 3.48Mn shares), Mary Anne Heino (Ceo, 419.40K shares), Mary Anne Heino (Executive Chair And Ceo, 323.12K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Sam R Leno | - | 63,109 | 0 | 16 May, 2025 |
| Rajiv A Patel | - | 0 | 3,477,227 | 21 Aug, 2025 |
| Brian A Markison | Ceo | 232,420 | 0 | 07 Mar, 2025 |
| James H Thrall | - | 35,744 | 0 | 16 May, 2025 |
| Julie Mchugh | - | 25,962 | 0 | 11 Jun, 2025 |
| Julia Marie Eastland | - | 3,882 | 0 | 16 May, 2025 |
| Mary Anne Heino | Ceo | 0 | 419,397 | 29 Mar, 2023 |
| Gary J Pruden | - | 2,537 | 14,613 | 16 May, 2025 |
| Minnie Baylor-Henry | - | 9,881 | 0 | 16 May, 2025 |
| Robert J. Jr. Marshall | Cfo And Treasurer | 122,792 | 0 | 09 Mar, 2026 |
| Gerard Ber | - | 23,362 | 0 | 16 May, 2025 |
| Heinz Christoph Maeusli | - | 25,877 | 0 | 16 May, 2025 |
| Paul Blanchfield | President | 108,214 | 0 | 15 Aug, 2025 |
| Jeffrey Humphrey | Chief Medical Officer | 9,076 | 0 | 20 Jun, 2024 |
| Daniel Niedzwiecki | - | 119,376 | 0 | 09 Mar, 2026 |
| Etienne Montagut | Chief Business Officer | 94,651 | 0 | 07 Mar, 2024 |
| Carol Walker | Senior Vice President, Quality | 64,899 | 0 | 01 Apr, 2022 |
| Andrea Sabens | Chief Accounting Officer | 60,420 | 0 | 17 Jul, 2024 |
| Ying Vivian Yao | Chief Human Resources Officer | 30,319 | 0 | 07 Mar, 2022 |
| Phuong Khanh Morrow | - | 3,100 | 0 | 16 May, 2025 |
| Jean-Claude Provost | Chief Medical Officer | 0 | 38,841 | 07 Mar, 2024 |
| Amanda Michelle Morgan | Chief Commercial Officer | 64,153 | 0 | 09 Mar, 2026 |
| Kimberly Brown | Chief Accounting Officer | 13,726 | 0 | 09 Mar, 2026 |
| Ludger Dinkelborg | - | 35,731 | 0 | 09 Mar, 2026 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 17 Apr, 2026 | Daniel Niedzwiecki | Common Stock | D | 1,911 | $83.82 | 117,465 | D | F |
| 05 Mar, 2026 | Robert J. Jr. Marshall | Common Stock | A | 38,002 | $0.00 | 123,974 | D | A |
| 05 Mar, 2026 | Amanda Michelle Morgan | Common Stock | A | 26,208 | $0.00 | 64,748 | D | A |
| 05 Mar, 2026 | Robert J. Jr. Marshall | Common Stock | A | 38,002 | $0.00 | 123,974 | D | A |
| 05 Mar, 2026 | Kimberly Brown | Common Stock | A | 6,158 | $0.00 | 13,859 | D | A |
| 05 Mar, 2026 | Ludger Dinkelborg | Common Stock | A | 20,966 | $0.00 | 35,731 | D | A |
| 05 Mar, 2026 | Amanda Michelle Morgan | Common Stock | A | 26,208 | $0.00 | 64,748 | D | A |
| 05 Mar, 2026 | Amanda Michelle Morgan | Common Stock | A | 26,208 | $0.00 | 64,748 | D | A |
| 05 Mar, 2026 | Robert J. Jr. Marshall | Common Stock | A | 38,002 | $0.00 | 123,974 | D | A |
| 05 Mar, 2026 | Daniel Niedzwiecki | Common Stock | A | 36,692 | $0.00 | 120,659 | D | A |
| 05 Mar, 2026 | Amanda Michelle Morgan | Common Stock | D | 595 | $76.31 | 64,153 | D | F |
| 05 Mar, 2026 | Robert J. Jr. Marshall | Common Stock | D | 1,182 | $76.31 | 122,792 | D | F |
| 05 Mar, 2026 | Robert J. Jr. Marshall | Common Stock | D | 1,182 | $76.31 | 122,792 | D | F |
| 05 Mar, 2026 | Robert J. Jr. Marshall | Common Stock | D | 1,182 | $76.31 | 122,792 | D | F |
| 05 Mar, 2026 | Amanda Michelle Morgan | Common Stock | D | 595 | $76.31 | 64,153 | D | F |
| 05 Mar, 2026 | Amanda Michelle Morgan | Common Stock | D | 595 | $76.31 | 64,153 | D | F |
| 05 Mar, 2026 | Daniel Niedzwiecki | Common Stock | D | 1,283 | $76.31 | 119,376 | D | F |
| 05 Mar, 2026 | Kimberly Brown | Common Stock | D | 133 | $76.31 | 13,726 | D | F |
| 02 Mar, 2026 | Robert J. Jr. Marshall | Common Stock | A | 8,491 | $0.00 | 96,624 | D | A |
| 02 Mar, 2026 | Amanda Michelle Morgan | Common Stock | A | 2,782 | $0.00 | 41,876 | D | A |