🕵️ Transmedics Group, Inc. ($TMDX)
SEC insider & ownership activity, last 12 months · CIK 1756262 · every row links its SEC filing
Over the last 12 months insiders sold $5.4M against $3.0M of open-market buying. Waleed H. Hassanein bought $3.0M (Aug–Nov). No red-flag 8-Ks in the window.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
1 buyer, $3.0M (4 lots) · 7 sellers, $5.4M (13 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Waleed H. Hassanein | 4 | $3.0M | 0 | – | Nov 17, 2025 |
| Gerardo P Hernandez | 0 | – | 4 | $1.2M | Mar 4, 2026 |
| Weill David | 0 | – | 2 | $1.2M | Mar 4, 2026 |
| Edward M. Basile | 0 | – | 2 | $1.1M | Oct 29, 2025 |
| Thomas Gunderson | 0 | – | 1 | $722K | Jun 15, 2026 |
| Anil P Ranganath | 0 | – | 2 | $556K | Mar 2, 2026 |
| Corcoran Nicholas | 0 | – | 1 | $413K | Mar 2, 2026 |
| Lovell Stephanie | 0 | – | 1 | $178K | Mar 4, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| FMR LLC | 15.0% | 13G | May 12, 2025 | filing ↗ | |
| Abigail P. Johnson | 15.0% | 13G | May 12, 2025 | filing ↗ | |
| Blackrock, Inc. | 14.6% | 13G | Jul 18, 2025 | filing ↗ | |
| Vanguard Portfolio Management | 5.7% | 13G | Apr 29, 2026 | filing ↗ | |
| Vanguard Capital Management | 5.1% | 13G | Apr 30, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Thomas Gunderson | $722K | Jun 15, 2026 | filing ↗ |
| Gerardo P Hernandez | $1.1M | Mar 4, 2026 | filing ↗ |
| Stephanie Lovell | $178K | Mar 4, 2026 | filing ↗ |
| David Weill | $524K | Mar 4, 2026 | filing ↗ |
| David Weill | $693K | Dec 3, 2025 | filing ↗ |
| Anil P Ranganath | $436K | Nov 25, 2025 | filing ↗ |
| Edward Basile | $540K | Oct 29, 2025 | filing ↗ |
| Edward Basile | $520K | Aug 4, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Shareholder vote (5.07) | May 20, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 20, 2026 | filing ↗ |
| Earnings (2.02) | May 5, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 5, 2026 | filing ↗ |
| Earnings (2.02) | Feb 27, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 27, 2026 | filing ↗ |
| Earnings (2.02) | Feb 24, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 24, 2026 | filing ↗ |
| Officer/director changes (5.02) | Feb 1, 2026 | filing ↗ |
| Material agreement (1.01) | Jan 8, 2026 | filing ↗ |
| Other events (8.01) | Jan 8, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 8, 2026 | filing ↗ |
| Earnings (2.02) | Oct 29, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 29, 2025 | filing ↗ |
| Acquisition or disposition (2.01) | Oct 3, 2025 | filing ↗ |
| Earnings (2.02) | Jul 30, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 30, 2025 | filing ↗ |