Form 4 for TMDX TransMedics Group, Inc.
Accepted 2026-06-17 16:15:04 ET · period of report 2026-06-15 · accession 0001193125-26-274178 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2026-06-17 16:15 | 2026-06-15 | TMDX | Gunderson Thomas J. | Dir | M - OptEx | $2.21 | +19.3K | 26.3K | +276% | +$42.6K |
| D | 2026-06-17 16:15 | 2026-06-15 | TMDX | Gunderson Thomas J. | Dir | S - Sale+OE | $75.06 | -9,624 | 16.6K | -37% | -$722.4K |
| D | 2026-06-17 16:15 | 2026-06-15 | TMDX | Gunderson Thomas J. | Dir | M - OptEx | $0.00 | -19.3K | 0 | -100% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-06-15 | M | A | 19,285 | $2.21 | 26,266 | D | — | — | |
| 2 | Common | Common Stock | 2026-06-15 | S | D | 9,624 | $75.06 | 16,642 | D | — | — | (F1) The shares were sold to cover the exercise price and applicable tax withholding obligations in connection with the exercise of the stock options. |
| 3 | Derivative | Stock Option (Right to Buy) | 2026-06-15 | M | D | 19,285 | $0.00 | 0 | D | $2.21 · — to 2026-08-01 | 19,285 Common Stock | (F2) The stock options were granted on August 1, 2016 and are fully vested. |