David Weill bought $109k of TMDX
director at TransMedics Group, Inc.. 1,336 shares at an average of $81.63, traded Sep 11, 2026, filed Sep 14, 2026.
Score components
- +15RoleDirector
- +10Trade size$109k at market
- +3Relative to holdingsHoldings up 9%
- +8Price context45% below the 52-week high
- 0ClusterNo other insider buying within 14 days
- 0Repeat buyingFirst buy in 90 days
- 0Track recordToo few past buys to judge (0 with prices)
What happened after comparable buys
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0001193125-26-390650, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Sep 11, 2026 | POpen-market purchase Common Stock | +1,336 | $81.63 | $109k | 16,392 | 30 d ago |
Related signals
Other insiders at TransMedics Group, Inc. and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 31Weak | TMDXsell TransMedics Group, Inc. | Thomas James Gunderson director | $722k 9,624 shares | -37% | |
| 52Moderate | TransMedics Group, Inc. | Stephanie Lovell director | $178k 1,193 shares | -29% | |
| 38Weak | TransMedics Group, Inc. | David Weill director | $524k 3,571 shares | -23% | |
| 46Moderate | TransMedics Group, Inc. | Nicholas Corcoran See remarks | $413k 2,966 shares | -9% | |
| 67Notable | TransMedics Group, Inc. | Gerardo Hernandez Chief Financial Officer | $1.1M 7,611 shares | -51% | |
| 40Moderate | TransMedics Group, Inc. | Anil P. Ranganath See remarks | $120k 864 shares | -6% | |
| 48Moderate | TransMedics Group, Inc. | Gerardo Hernandez Chief Financial Officer | $128k 920 shares | -6% | |
| 46Moderate | TransMedics Group, Inc. | David Weill director | $693k 5,000 shares | -29% | |
| 37Weak | TransMedics Group, Inc. | Anil P. Ranganath See remarks | $436k 3,000 shares | -18% | |
| 54Moderate | TMDXbuy TransMedics Group, Inc. | Waleed H Hassanein President & CEO | $1.0M 8,775 shares | +2% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.