TMDX insider buying – TransMedics Group, Inc.
8 insider purchases since 2016 worth $6.3M by 4 different insiders. Last 12 months: 2 purchases, $1.1M. Most recent filing: 2026-09-14.
Large company Public float $4.4B (latest 10-K, SEC).
Same time range as the chart above - each mark sits under the week of the trade. Circles = purchases (height = price paid, size = amount), red triangles = open-market sales of $50k+. Prices as reported, not adjusted for later stock splits. 3 older purchases (before the 5-year window) are listed in the table below.
Purchases are open-market buys (SEC Form 4, code "P") - insiders paying with their own money. Sales are open-market sales (code "S") of $50,000 or more; many sales are pre-planned (Rule 10b5-1) or made for taxes and diversification. Each row links to the original filing.
Bought, sold, still holding?
| Insider | Bought | First / last buy | Sold since 2016 | Holds now* | Status |
|---|---|---|---|---|---|
| Hassanein Waleed H CEO | $3.0M 2× · 25,650 sh | 2025-08-06 2025-11-17 | 35× · $48.4M last 2024-10-15 | 666,102 shares as of 2026-07-14 | Holds (sold earlier) |
| KANIA EDWIN M JR Director | $2.8M 2× · 133,333 sh | 2019-05-06 2021-11-29 | – | 309,874 shares as of 2026-05-22 | Holds - never sold |
| Weill David Director | $434,058 3× · 13,836 sh | 2019-11-11 2026-09-11 | 7× · $3.5M last 2026-03-04 | 16,392 shares as of 2026-09-14 | Holds (sold earlier) |
| Basile Edward M Director | $136,000 1× · 8,500 sh | 2019-05-06 2019-05-06 | 11× · $6.3M last 2025-10-29 | 5,788 shares as of 2026-05-22 | Sold part |
* Shares held after the insider's most recent SEC filing for this company (all share classes, direct and indirect). If an insider stops filing, later changes are not known.
Insider buying and selling by year
| Year | Purchases | Bought | Buyers | Sales | Sold |
|---|---|---|---|---|---|
| 2026 | 1 | $109,058 | 1 | 6 | $3.1M |
| 2025 | 2 | $3.0M | 1 | 11 | $4.1M |
| 2024 | 0 | – | – | 52 | $70.0M |
| 2023 | 1 | $155,000 | 1 | 39 | $23.4M |
| 2022 | 0 | – | – | 37 | $21.7M |
| 2021 | 1 | $2.3M | 1 | 24 | $37.9M |
| 2020 | 0 | – | – | 2 | $278,300 |
| 2019 | 3 | $839,328 | 3 | 1 | $9.4M |
Insider purchases
| Filed | Insider | Role | Shares | Avg price | Value | Holdings | Filing |
|---|---|---|---|---|---|---|---|
| 2026-09-14 | Weill David | Director | 1,336 | $81.63 | $109,058 | +8.9% | SEC |
| 2025-11-18 | Hassanein Waleed H | CEO | 8,775 | $114.00 | $1.0M | +1.8% | SEC |
| 2025-08-08 | Hassanein Waleed H | CEO | 16,875 | $117.46 | $2.0M | +3.6% | SEC |
| 2023-08-30 | Weill David | Director | 2,500 | $62.00 | $155,000 | +22.3% | SEC |
| 2021-11-30 | KANIA EDWIN M JR | Director | 100,000 | $22.56 | $2.3M | +49.3% | SEC |
| 2019-11-13 | Weill David | Director | 10,000 | $17.00 | $170,000 | SEC | |
| 2019-05-06 | KANIA EDWIN M JR | Director | 33,333 | $16.00 | $533,328 | SEC | |
| 2019-05-06 | Basile Edward M | Director | 8,500 | $16.00 | $136,000 | +59.4% | SEC |
Insider sales
| Filed | Insider | Role | Shares | Avg price | Value | Type | Filing |
|---|---|---|---|---|---|---|---|
| 2026-06-17 | Gunderson Thomas J. | Director | 9,624 | $75.06 | $722,377 | Sale | SEC |
| 2026-03-06 | Weill David | Director | 3,571 | $146.82 | $524,294 | Sale | SEC |
| 2026-03-06 | Lovell Stephanie | Director | 1,193 | $149.62 | $178,497 | Sale | SEC |
| 2026-03-04 | Ranganath Anil P. | Officer | 864 | $139.12 | $120,200 | Sale | SEC |
| 2026-03-04 | Hernandez Gerardo | CFO | 7,611 | $146.81 | $1.1M | Sale | SEC |
| 2026-03-04 | Corcoran Nicholas | Officer | 2,966 | $139.12 | $412,630 | Sale | SEC |
| 2025-12-05 | Hernandez Gerardo | CFO | 920 | $139.62 | $128,450 | Sale | SEC |
| 2025-12-05 | Weill David | Director | 5,000 | $138.64 | $693,200 | Sale | SEC |
| 2025-11-26 | Ranganath Anil P. | Officer | 3,000 | $145.22 | $435,660 | Sale | SEC |
| 2025-10-31 | Basile Edward M | Director | 4,142 | $130.45 | $540,324 | Sale | SEC |
| 2025-08-05 | Basile Edward M | Director | 4,143 | $125.51 | $519,988 | Sale | SEC |
| 2025-06-10 | Ranganath Anil P. | Officer | 686 | $139.80 | $95,903 | Sale | SEC |
| 2025-05-29 | Basile Edward M | Director | 5,000 | $126.45 | $632,250 | Sale | SEC |
| 2025-05-23 | Weill David | Director | 732 | $123.88 | $90,680 | Sale | SEC |
| 2025-05-13 | Basile Edward M | Director | 6,000 | $115.63 | $693,780 | Sale | SEC |
Showing the latest 15 of 172 sales of $50,000+ since 2016.
Compiled automatically from public SEC filings. Not investment advice. Get every new insider purchase in the daily report.
Get every new insider purchase the day it's filed
Daily report with all SEC insider buys, cluster buys, company events and the crypto money-flow radar.
Get started free