Company · Ownership research

TransMedics Group, Inc. TMDX

CIK 0001756262

Form 4 transactions dated Nov 1, 2023 to Nov 10, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

This page lists 30 of 31 rows; the complete set is available through the API.

Insider filings on file run through Oct 30, 2026.

Insider purchases & sales

Purchased: $3.09M
Sold: $77.25M

Nov 1, 2023 – Oct 30, 2026
Available records · partial months are marked ·

202510 of 14 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
Dec 4, 2025	Hernandez Gerardo Chief Financial Officer	Sale	$128.45K 920 shares sold	5.76% sold Direct holding	▾
Dec 3, 2025	Weill David Director	Sale	$693.20K 5,000 shares sold	29.18% sold Direct holding	▾
Nov 25, 2025	Ranganath Anil P. See remarks	Sale	$435.66K 3,000 shares sold	17.69% sold Direct holding	▾
Nov 17, 2025	Hassanein Waleed H President & CEO · Director	Purchase	$1.00M 8,775 shares bought	1.80% added Trust holding	▾
Oct 29, 2025	Basile Edward M Director	Sale10b5-1 footnote	$540.32K 4,142 shares sold	59.10% sold Direct holding	▾
Aug 7, 2025	Hassanein Waleed H President & CEO · Director	Purchase	$985.21K 8,475 shares bought	1.77% added Trust holding	▾
Aug 6, 2025	Hassanein Waleed H President & CEO · Director	Purchase	$996.91K 8,400 shares bought	1.79% added Trust holding	▾
Aug 4, 2025	Basile Edward M Director	Sale	$519.99K 4,143 shares sold	59.11% sold Direct holding	▾
Jun 9, 2025	Ranganath Anil P. See remarks	Sale	$95.90K 686 shares sold	4.69% sold Direct holding	▾
May 27, 2025	Basile Edward M Director	Sale	$632.25K 5,000 shares sold	63.56% sold Direct holding	▾

Showing 14 / 14 record groups in 2025. The complete set is available through the API.

TransMedics Group, Inc. · TMDX

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The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. For the year shown, this page lists 14 of 14 purchase / sale groups and 30 of 31 other groups; the totals and the monthly series cover the whole window.

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

Non-cancelled, non-derivative purchase (P) and sale (S) rows dated inside the public window, as reported. Share totals are on today's split-adjusted basis. Includes open-market and private transactions. Data after the latest filing is not asserted complete and is not zero-filled. A grouped event shares filing, transaction date, security, code, direction, ownership bucket and source. Derivative groups also match underlying security, exercise price, exercise/expiration dates and footnote references. Reported rows are retained; P/S price lots can be grouped. Post-transaction balances are never summed.