TransDigm Group Ownership & Insider Activity

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TransDigm Group (TDG) institutional and insider ownership, recent insider transactions and ownership breakdown.

Insiders own 0.6% of shares outstanding. Institutional investors hold 84.5%.

Shares Outstanding

55.277M

Shares Float

41.362M

Insider Shares Owned

346.714K

Insider % Owned

0.6%

Institutional Shares Held

46.732M

Institutional % Held

84.5%

Ownership Breakdown

Net Insider Activity by Month

TransDigm Group Insider Transactions (Last 6 Months)

Date	Insider	Title	Type	Shares	Price	Value
Oct 15, 2026	Joel Reiss	CO-CHIEF OPERATING OFFICER	SELL-OPTIONS	—	$706.50	$3.5M
Sep 15, 2026	Joel Reiss	CO-CHIEF OPERATING OFFICER	SELL-OPTIONS	—	$689.78	$3.2M
Aug 18, 2026	W. Nicholas Howley	—	SELL-OPTIONS	—	$651.37	$11.9M
Aug 17, 2026	Joel Reiss	CO-CHIEF OPERATING OFFICER	SELL-OPTIONS	—	$761.86	$3.7M
Jul 20, 2026	W. Nicholas Howley	—	SELL-OPTIONS	—	$641.27	$11.6M
Jul 15, 2026	Joel Reiss	CO-CHIEF OPERATING OFFICER	SELL	414.000	$1231.11	$510K
Jul 15, 2026	Joel Reiss	CO-CHIEF OPERATING OFFICER	SELL-OPTIONS	414.000	$750.59	$3.1M
Jun 18, 2026	W. Nicholas Howley	—	SELL-OPTIONS	—	$693.01	$12.7M
Jun 18, 2026	W. Nicholas Howley	—	SELL-OPTIONS	—	$693.01	$12.7M
Jun 18, 2026	W. Nicholas Howley	—	SELL-OPTIONS	—	$693.01	$12.7M
Jun 15, 2026	Joel Reiss	CO-CHIEF OPERATING OFFICER	SELL-OPTIONS	—	$780.88	$3.9M
May 18, 2026	W. Nicholas Howley	—	SELL-OPTIONS	—	$623.64	$11.3M
May 15, 2026	Joel Reiss	CO-CHIEF OPERATING OFFICER	SELL-OPTIONS	—	$719.53	$3.4M

Date	Member	Party	Chamber	Action	Amount
Aug 25, 2026	April McClain Delaney	D	House	Sale	$100,001 - $250,000
Jul 28, 2026	April McClain Delaney	D	House	Purchase	$1,001 - $15,000
May 22, 2026	April McClain Delaney	D	House	Purchase	$1,001 - $15,000
May 21, 2026	April McClain Delaney	D	House	Purchase	$1,001 - $15,000
May 13, 2026	April McClain Delaney	D	House	Purchase	$1,001 - $15,000
May 8, 2026	April McClain Delaney	D	House	Purchase	$1,001 - $15,000
May 7, 2026	April McClain Delaney	D	House	Purchase	$1,001 - $15,000
Apr 29, 2026	April McClain Delaney	D	House	Purchase	$1,001 - $15,000
Apr 20, 2026	April McClain Delaney	D	House	Purchase	$1,001 - $15,000
Apr 17, 2026	April McClain Delaney	D	House	Purchase	$1,001 - $15,000
Apr 16, 2026	April McClain Delaney	D	House	Purchase	$15,001 - $50,000
Apr 15, 2026	April McClain Delaney	D	House	Purchase	$1,001 - $15,000
Mar 27, 2026	Alan Armstrong	R	Senate	Purchase	$1,001 - $15,000
Mar 25, 2026	Gilbert Ray Cisneros	D	House	Sale (Partial)	$1,001 - $15,000
Mar 16, 2026	Gilbert Ray Cisneros	D	House	Purchase	$1,001 - $15,000
Jan 30, 2026	Gilbert Ray Cisneros	D	House	Purchase	$1,001 - $15,000
Dec 24, 2025	Gilbert Ray Cisneros	D	House	Sale (Partial)	$1,001 - $15,000
Nov 18, 2025	Gilbert Ray Cisneros	D	House	Purchase	$1,001 - $15,000
Oct 17, 2025	Gilbert Ray Cisneros	D	House	Purchase	$1,001 - $15,000
Sep 23, 2025	Val Hoyle	D	House	Sale	$1,001 - $15,000