LNTH's three largest insider shareholders as of March 23, 2026 are Rajiv A Patel (Other, 3.48Mn shares), Partners L L C/Ca Farallon (TenPercentOwner, 3.48Mn shares), Mary Anne Heino (Executive Chair And Ceo, 323.12K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Rajiv A Patel | 0 | 3,477,227 | 21 Aug, 2025 | |
| Partners L L C/Ca Farallon | 0 | 3,477,227 | 21 Aug, 2025 | |
| Mary Anne Heino | Executive Chair And Ceo | 323,124 | 0 | 04 Mar, 2026 |
| Brian A Markison | Ceo | 232,420 | 0 | 07 Mar, 2025 |
| Mary Anne Heino | 0 | 179,300 | 29 May, 2025 | |
| Robert J. Jr. Marshall | Cfo And Treasurer | 122,792 | 0 | 09 Mar, 2026 |
| Daniel Niedzwiecki | See Remarks | 119,376 | 0 | 09 Mar, 2026 |
| Paul Blanchfield | President | 108,214 | 0 | 15 Aug, 2025 |
| John J. Bolla | Chief Operations Officer | 102,440 | 0 | 18 Jun, 2021 |
| Etienne Montagut | Chief Business Officer | 94,651 | 0 | 07 Mar, 2024 |
| Carol Walker | Senior Vice President, Quality | 64,899 | 0 | 01 Apr, 2022 |
| Amanda Michelle Morgan | Chief Commercial Officer | 64,153 | 0 | 09 Mar, 2026 |
| Andrea Sabens | Chief Accounting Officer | 60,420 | 0 | 17 Jul, 2024 |
| A Frederick Robertson | 51,798 | 0 | 30 Apr, 2021 | |
| Jean-Claude Provost | Chief Medical Officer | 0 | 38,841 | 07 Mar, 2024 |
| James H Thrall | 35,744 | 0 | 16 May, 2025 | |
| Ludger Dinkelborg | See Remarks | 35,731 | 0 | 09 Mar, 2026 |
| Ying Vivian Yao | Chief Human Resources Officer | 30,319 | 0 | 07 Mar, 2022 |
| Julie Mchugh | 25,962 | 0 | 11 Jun, 2025 | |
| Heinz Christoph Maeusli | 25,877 | 0 | 16 May, 2025 | |
| Gerard Ber | 23,362 | 0 | 16 May, 2025 | |
| Gary J Pruden | 2,537 | 14,613 | 16 May, 2025 | |
| Kimberly Brown | Chief Accounting Officer | 13,726 | 0 | 09 Mar, 2026 |
| Minnie Baylor-Henry | 9,881 | 0 | 16 May, 2025 | |
| Jeffrey Humphrey | Chief Medical Officer | 9,076 | 0 | 20 Jun, 2024 |
| Julia Marie Eastland | 3,882 | 0 | 16 May, 2025 | |
| Phuong Khanh Morrow | 3,100 | 0 | 16 May, 2025 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 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 | Daniel Niedzwiecki | Common Stock | A | 36,692 | $0.00 | 120,659 | 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 | 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 |
| 05 Mar, 2026 | Robert J. Jr. Marshall | Common Stock | D | 1,182 | $76.31 | 122,792 | D | F |
| 02 Mar, 2026 | Daniel Niedzwiecki | Common Stock | A | 5,169 | $0.00 | 92,226 | D | A |
| 02 Mar, 2026 | Amanda Michelle Morgan | Common Stock | A | 2,782 | $0.00 | 41,876 | D | A |
| 02 Mar, 2026 | Robert J. Jr. Marshall | Common Stock | A | 8,491 | $0.00 | 96,624 | D | A |
| 02 Mar, 2026 | Mary Anne Heino | Common Stock | A | 32,105 | $0.00 | 365,040 | D | A |
| 02 Mar, 2026 | Daniel Niedzwiecki | Common Stock | D | 8,259 | $76.30 | 83,967 | D | F |
| 02 Mar, 2026 | Amanda Michelle Morgan | Common Stock | D | 3,336 | $76.30 | 38,540 | D | F |
| 02 Mar, 2026 | Robert J. Jr. Marshall | Common Stock | D | 10,652 | $76.30 | 85,972 | D | F |
| 02 Mar, 2026 | Mary Anne Heino | Common Stock | D | 41,916 | $76.30 | 323,124 | D | F |
| 17 Nov, 2025 | Mary Anne Heino | Common Stock | A | 14,285 | $0.00 | 332,935 | D | A |
| 17 Nov, 2025 | Mary Anne Heino | Stock Option (right to buy) | A | 26,325 | $0.00 | 26,325 | D | A |
| 29 Aug, 2025 | Robert J. Jr. Marshall | Common Stock | D | 727 | $54.90 | 88,133 | D | F |