Gunderson Thomas J.
SEC CIK 1708144 · EDGAR
BoughtSold
Most active insiders at TMDX, 12 months
| # | Insider | Title | Bought | Sold |
|---|---|---|---|---|
| 1 | Weill David | Dir | $109.1K | $1.22M |
| 2 | Hernandez Gerardo | CFO | — | $1.25M |
| 3 | Hassanein Waleed H | Pres, CEO, Dir | $1.00M | — |
| 4 | Gunderson Thomas J. | Dir | — | $722.4K |
| 5 | Ranganath Anil P. | See remarks | — | $555.9K |
| 6 | Basile Edward M | Dir | — | $540.3K |
| 7 | Corcoran Nicholas | See remarks | — | $412.6K |
| 8 | Lovell Stephanie | Dir | — | $178.5K |
| 9 | Forsyth Matthew S. | See Remarks | — | — |
| 10 | Cecere Giovanni | Chief Commercial Off | — | — |
Transactions 16
| X | Filed | Traded | Ticker | Company | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2026-06-17 16:15 | 2026-06-15 | TMDX | TransMedics Group, Inc. | 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 | TransMedics Group, Inc. | Gunderson Thomas J. | Dir | S - Sale+OE | $75.06 | -9,624 | 16.6K | -37% | -$722.4K |
| 2026-05-22 16:15 | 2026-05-20 | TMDX | TransMedics Group, Inc. | Gunderson Thomas J. | Dir | A - Grant | $0.00 | +2,922 | 6,981 | +72% | $0 | |
| DM | 2026-05-21 09:10 | 2026-05-20 | MMSI | MERIT MEDICAL SYSTEMS INC | Gunderson Thomas J. | Dir | M - OptEx | $52.17 | +21.2K | 60.7K | +54% | +$1.11M |
| 2026-05-19 18:10 | 2026-05-18 | MMSI | MERIT MEDICAL SYSTEMS INC | Gunderson Thomas J. | Dir | A - Grant | $0.00 | +3,457 | 39.5K | +10% | $0 | |
| 2025-05-23 | 2025-05-22 | TMDX | TransMedics Group, Inc. | Gunderson Thomas James | Dir | A - Grant | $0.00 | +2,134 | 4,059 | +111% | $0 | |
| 2025-05-19 | 2025-05-15 | MMSI | MERIT MEDICAL SYSTEMS INC | Gunderson Thomas James | Dir | A - Grant | $0.00 | +2,152 | 36.0K | +6% | $0 | |
| D | 2025-03-03 | 2025-02-28 | MMSI | MERIT MEDICAL SYSTEMS INC | Gunderson Thomas James | Dir | M - OptEx | $50.50 | +25.0K | 46.7K | +115% | +$1.26M |
| D | 2025-03-03 | 2025-02-28 | MMSI | MERIT MEDICAL SYSTEMS INC | Gunderson Thomas James | Dir | F - Tax | $99.95 | -12.8K | 33.9K | -27% | -$1.28M |
| D | 2024-05-28 | 2024-05-23 | TMDX | TransMedics Group, Inc. | Gunderson Thomas James | Dir | A - Grant | $0.00 | +732 | 1,925 | +61% | $0 |
| 2024-05-20 | 2024-05-16 | MMSI | MERIT MEDICAL SYSTEMS INC | Gunderson Thomas James | Dir | A - Grant | $0.00 | +2,431 | 21.7K | +13% | $0 | |
| D | 2024-03-05 | 2024-03-04 | MMSI | MERIT MEDICAL SYSTEMS INC | Gunderson Thomas James | Dir | S - Sale+OE | $76.03 | -18.2K | 19.3K | -49% | -$1.38M |
| D | 2024-03-05 | 2024-03-04 | MMSI | MERIT MEDICAL SYSTEMS INC | Gunderson Thomas James | Dir | M - OptEx | $34.40 | +25.0K | 37.4K | +201% | +$860.0K |
| D | 2023-05-30 | 2023-05-25 | TMDX | TransMedics Group, Inc. | Gunderson Thomas James | Dir | A - Grant | $0.00 | +1,193 | 1,193 | New | $0 |
| 2023-05-22 | 2023-05-18 | MMSI | MERIT MEDICAL SYSTEMS INC | Gunderson Thomas James | Dir | A - Grant | $0.00 | +2,262 | 12.4K | +22% | $0 | |
| 2022-05-26 | 2022-05-24 | MMSI | MERIT MEDICAL SYSTEMS INC | Gunderson Thomas James | Dir | A - Grant | $0.00 | +3,050 | 10.2K | +43% | $0 |
Purchase Sale Sale after option exercise All abbreviations