As of April 22, 2026, the three largest insider holders of TMDX are Waleed H Hassanein (President Ceo, 495.01K shares), Edwin M Jr Kania (Director, 260.81K shares), James R Tobin (Director, 173.15K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Waleed H Hassanein | President Ceo | 0 | 495,009 | 18 Nov, 2025 |
| Edwin M Jr Kania | - | 260,810 | 0 | 23 May, 2025 |
| James R Tobin | - | 0 | 173,146 | 17 Sep, 2024 |
| Waleed H Hassanein | President Ceo | 121,424 | 0 | 26 Feb, 2025 |
| Tamer I Khayal | Chief Commercial Officer | 36,042 | 0 | 05 Mar, 2025 |
| Nicholas Corcoran | - | 29,831 | 0 | 04 Mar, 2026 |
| Miriam Provost | Vp, Global Regulatory Affairs | 23,348 | 0 | 15 Dec, 2023 |
| Stephen Gordon | Chief Financial Officer | 21,299 | 0 | 05 Jun, 2024 |
| Giovanni Cecere | Chief Commercial Officer | 19,057 | 0 | 20 Feb, 2026 |
| Gerardo Hernandez | Chief Financial Officer | 14,689 | 0 | 04 Mar, 2026 |
| John F Sullivan | Vp Of Quality Engineering | 14,273 | 0 | 01 Sep, 2021 |
| John F Carey | Vp Of Operations | 14,120 | 0 | 03 Feb, 2023 |
| Anil P. Ranganath | - | 13,091 | 0 | 04 Mar, 2026 |
| David Weill | - | 12,134 | 0 | 06 Mar, 2026 |
| Laura Damme | Vp, Clinical Affairs | 5,685 | 0 | 22 Feb, 2023 |
| James R Tobin | - | 4,059 | 0 | 23 May, 2025 |
| Merilee Raines | - | 4,059 | 0 | 23 May, 2025 |
| Thomas James Gunderson | - | 4,059 | 0 | 23 May, 2025 |
| Edward M Basile | - | 2,866 | 0 | 31 Oct, 2025 |
| Stephanie Lovell | - | 2,866 | 0 | 06 Mar, 2026 |
| John F Carey | Vp Of Operations | 379 | 0 | 27 Jun, 2022 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 04 Mar, 2026 | David Weill | Common Stock | A | 3,571 | $14.20 | 15,705 | D | M |
| 04 Mar, 2026 | Stephanie Lovell | Common Stock | D | 1,193 | $149.62 | 2,866 | D | S |
| 04 Mar, 2026 | David Weill | Common Stock | D | 3,571 | $146.82 | 12,134 | D | S |
| 04 Mar, 2026 | David Weill | Stock Option (Right to Buy) | D | 3,571 | $0.00 | 1,429 | D | M |
| 23 Jan, 2026 | Nicholas Corcoran | Common Stock | D | 984 | $135.30 | 32,797 | D | F |
| 02 Mar, 2026 | Gerardo Hernandez | Common Stock | D | 375 | $139.12 | 14,689 | D | S |
| 02 Mar, 2026 | Anil P. Ranganath | Common Stock | D | 864 | $139.12 | 13,091 | D | S |
| 02 Mar, 2026 | Nicholas Corcoran | Common Stock | D | 2,966 | $139.12 | 29,831 | D | S |
| 04 Mar, 2026 | Gerardo Hernandez | Common Stock | A | 1,324 | $77.12 | 16,013 | D | M |
| 04 Mar, 2026 | Gerardo Hernandez | Common Stock | D | 1,324 | $147.21 | 14,689 | D | S |
| 04 Mar, 2026 | Gerardo Hernandez | Common Stock | A | 5,912 | $69.84 | 20,601 | D | M |
| 04 Mar, 2026 | Gerardo Hernandez | Common Stock | D | 5,912 | $147.21 | 14,689 | D | S |
| 04 Mar, 2026 | Gerardo Hernandez | Stock Option (Right to Buy) | D | 1,324 | $0.00 | 3,975 | D | M |
| 04 Mar, 2026 | Gerardo Hernandez | Stock Option (Right to Buy) | D | 5,912 | $0.00 | 13,010 | D | M |
| 18 Feb, 2026 | Giovanni Cecere | Common Stock | A | 11,082 | $0.00 | 19,057 | D | A |
| 18 Feb, 2026 | Giovanni Cecere | Stock Option (Right to Buy) | A | 16,734 | $0.00 | 16,734 | D | A |
| 03 Dec, 2025 | David Weill | Common Stock | A | 5,000 | $14.20 | 17,134 | D | M |
| 04 Dec, 2025 | Gerardo Hernandez | Common Stock | D | 920 | $139.62 | 15,064 | D | S |
| 03 Dec, 2025 | David Weill | Common Stock | D | 5,000 | $138.64 | 12,134 | D | S |
| 03 Dec, 2025 | David Weill | Stock Option (Right to Buy) | D | 5,000 | $0.00 | 5,000 | D | M |