TransMedics Group, Inc. (TMDX) has 128 open-market insider trades by 18 insiders since 2019. Over the last six months insiders net sold $613K. The most active filer is Waleed H. Hassanein, CEO & President.
| Name | Title | Tier | Trades | Value | Last Trade |
|---|---|---|---|---|---|
| Abrams Capital Management, LLC via David C. Abrams | 10% Owner | — | 1 | $57.1M | 2021-02-09 |
| Waleed H. Hassanein | CEOPres | — | 27 | $33.0M | 2026-07-10 |
| Tamer I. Khayal | CCO | — | 23 | $13.3M | 2025-03-03 |
| James R. Tobin | Dir | — | 7 | $13.2M | 2026-08-17 |
| Stephen Gordon | CFO | — | 21 | $11.4M | 2024-06-03 |
| UNITED THERAPEUTICS Corp | 10% Owner | — | 1 | $9.4M | 2019-12-09 |
| David Weill | Dir | — | 10 | $5.3M | 2026-09-11 |
| Edwin M. Kania Jr. | Dir | — | 2 | $5.0M | 2025-05-22 |
| Nicholas Corcoran | — | — | 3 | $3.0M | 2026-07-10 |
| Anil P. Ranganath | — | — | 4 | $2.2M | 2026-03-02 |
| Insider | Title | Type | Value | Date |
|---|---|---|---|---|
| David Weill | Director | Buy | $109K | 2026-09-11 |
| Thomas J. Gunderson | Director | Sell | $722K | 2026-06-15 |
| David Weill | Director | Sell | $524K | 2026-03-04 |
| Stephanie Lovell | Director | Sell | $178K | 2026-03-04 |
| Gerardo Hernandez | CFO | Sell | $1.1M | 2026-03-02 |
| Nicholas Corcoran | See remarks | Sell | $413K | 2026-03-02 |
Companies that share insiders with TMDX, and sector peers with recent insider buying. Related by who files, not by how the stocks move.
| Anil P. Ranganath | See remarks | Sell | $120K | 2026-03-02 |
| Gerardo Hernandez | CFO | Sell | $257K | 2025-12-04 |
| David Weill | Director | Sell | $1.4M | 2025-12-03 |
| Anil P. Ranganath | — | Sell | $436K | 2025-11-25 |
| Waleed H. Hassanein | CEO & President | Buy | $1.0M | 2025-11-17 |
| Edward M. Basile | Director | Sell | $1.1M | 2025-10-29 |
| Waleed H. Hassanein | CEO & President | Buy | $3.0M | 2025-08-06 |
| Edward M. Basile | Director | Sell | $1.0M | 2025-08-04 |
| Anil P. Ranganath | — | Sell | $192K | 2025-06-09 |