David Weill insider trades: TransMedics Group (TMDX) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where David reports to the SEC
Open-market buys and sales
10 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Sep 11, 2026 | TMDX | ↑ Buy | 1,336 | $81.63 | $109K | Direct | Sep 14, 2026 (3d) |
| Mar 4, 2026 | TMDX | ↓ Sell | 3,571 | $146.82 | $524K | Direct | Mar 6, 2026 (2d) |
| Dec 3, 2025 | TMDX | ↓ Sell | 5,000 | $138.64 | $693K | Direct | Dec 5, 2025 (2d) |
| May 23, 2025 | TMDX | ↓ Sell | 732 | $123.88 | $91K | Direct | May 23, 2025 (0d) |
| May 29, 2024 | TMDX | ↓ Sell | 1,193 | $141.65 | $169K | Direct | May 31, 2024 (2d) |
| May 10, 2024 | TMDX | ↓ Sell | 2,500 | $129.82 | $325K | Direct | May 14, 2024 (4d) |
| Aug 29, 2023 | TMDX | ↑ Buy | 2,500 | $62.00 | $155K | Direct | Aug 30, 2023 (1d) |
| Feb 27, 2023 | TMDX | ↓ Sell | 5,934 | $76.69 | $455K | Direct | Feb 28, 2023 (1d) |
| Nov 10, 2022 | TMDX | ↓ Sell | 21,645 | $56.00 | $1.2M | Direct | Nov 14, 2022 (4d) |
| Nov 11, 2019 | TMDX | ↑ Buy | 10,000 | $17.00 | $170K | Direct | Nov 13, 2019 (2d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other TMDX insiders
Open-market trades in the last 12 months
About David Weill's insider trades
David Weill is an insider at TransMedics Group (TMDX). Since Nov 11, 2019, David has reported 3 open-market purchases worth $434K and 7 sales worth $3.5M on SEC Form 4. In the last 12 months: 1 buy ($109K) and 2 sales ($1.2M).
Their filings also include grants and awards (7 filings), option exercises (4 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every TMDX insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.