Company · Ownership research

TransDigm Group INC TDG

CIK 0001260221

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 37 rows; the complete set is available through the API.

Insider filings on file run through Nov 5, 2026.

Insider purchases & sales

Purchased: $3.84M
Sold: $2.03B

Nov 1, 2023 – Nov 5, 2026
Available records · partial months are marked ·

2023, from Nov 1, 202310 of 20 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
Dec 29, 2023	Howley W Nicholas Director	Sale	$24.01M 23,653 shares sold	52.33% sold Trust holding	▾
Dec 22, 2023	Santana Michele Director	Sale	$1.00K 1 shares sold	0.15% sold Direct holding	▾
Dec 15, 2023	Howley W Nicholas Director	Sale	$6.21M 6,296 shares sold	22.61% sold Trust holding	▾
Dec 15, 2023	Reiss Joel Co-Chief Operating Officer	Sale	$2.98M 3,000 shares sold	45.45% sold Direct holding	▾
Dec 13, 2023	Howley W Nicholas Director	Sale	$1.85M 1,821 shares sold	7.79% sold Trust holding	▾
Dec 12, 2023	Lisman Michael Co-Chief Operating Officer	Sale	$11.97M 12,000 shares sold	83.86% sold Trust holding	▾
Dec 12, 2023	SMALL ROBERT J Director	Sale	$18.48M 18,522 shares sold	10.44% sold LLC holding	▾
Nov 22, 2023	HENNESSY SEAN P Director	Sale	$3.54M 3,650 shares sold	9.71% sold Direct holding	▾
Nov 21, 2023	SMALL ROBERT J Director	Sale	$2.17M 2,235 shares sold	1.24% sold LLC holding	▾
Nov 21, 2023	SMALL ROBERT J Director	Sale	$20.34M 20,966 shares sold	2.37% sold Indirect holding	▾

Showing 20 / 20 record groups in 2023. The complete set is available through the API.

TransDigm Group INC · TDG

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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 20 of 20 purchase / sale groups and 30 of 37 other groups; the totals and the monthly series cover the whole window.

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{"action":"list","ticker":"TDG","transaction_code":["P","S"],"transaction_form_type":"4","page_size":20}

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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.