TransDigm Group Ownership & Insider Activity

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

Insiders own 0.6% of shares outstanding. Institutional investors hold 89.5%. Over the past 90 days, insiders made 1 sale worth $510K.

Shares Outstanding

55.277M

Shares Float

41.362M

Insider Shares Owned

346.254K

Insider % Owned

0.6%

Institutional Shares Held

49.483M

Institutional % Held

89.5%

Ownership Breakdown

Net Insider Activity by Month

Purchases (90d)

Sales (90d)

$510K total

Net Activity

Net Selling

Net Value (90d)

-$510K

TransDigm Group Insider Transactions (Last 6 Months)

Date	Insider	Title	Type	Shares	Price	Value
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
Apr 20, 2026	W. Nicholas Howley	—	SELL-OPTIONS	—	$658.25	$12.3M
Apr 15, 2026	Joel Reiss	CO-CHIEF OPERATING OFFICER	SELL-OPTIONS	—	$782.71	$3.9M
Mar 18, 2026	W. Nicholas Howley	—	SELL-OPTIONS	—	$631.99	$11.8M
Mar 16, 2026	Joel Reiss	CO-CHIEF OPERATING OFFICER	SELL-OPTIONS	—	$764.34	$3.7M

Date	Member	Party	Chamber	Action	Amount
Jul 28, 2026	April McClain Delaney	D	House	P	$1,001 - $15,000
May 22, 2026	April McClain Delaney	D	House	P	$1,001 - $15,000
May 21, 2026	April McClain Delaney	D	House	P	$1,001 - $15,000
May 13, 2026	April McClain Delaney	D	House	P	$1,001 - $15,000
May 8, 2026	April McClain Delaney	D	House	P	$1,001 - $15,000
May 7, 2026	April McClain Delaney	D	House	P	$1,001 - $15,000
Apr 29, 2026	April McClain Delaney	D	House	P	$1,001 - $15,000
Apr 20, 2026	April McClain Delaney	D	House	P	$1,001 - $15,000
Apr 17, 2026	April McClain Delaney	D	House	P	$1,001 - $15,000
Apr 16, 2026	April McClain Delaney	D	House	P	$15,001 - $50,000
Apr 15, 2026	April McClain Delaney	D	House	P	$1,001 - $15,000
Mar 27, 2026	Alan Armstrong	R	Senate	P	$1,001 - $15,000
Mar 25, 2026	Gilbert Ray Cisneros	D	House	S (Partial)	$1,001 - $15,000
Mar 16, 2026	Gilbert Ray Cisneros	D	House	P	$1,001 - $15,000
Jan 30, 2026	Gilbert Ray Cisneros	D	House	P	$1,001 - $15,000
Dec 24, 2025	Gilbert Ray Cisneros	D	House	S (Partial)	$1,001 - $15,000
Nov 18, 2025	Gilbert Ray Cisneros	D	House	P	$1,001 - $15,000
Oct 17, 2025	Gilbert Ray Cisneros	D	House	P	$1,001 - $15,000
Sep 23, 2025	Val Hoyle	D	House	S	$1,001 - $15,000
May 12, 2025	Jefferson Shreve	R	House	S	$15,001 - $50,000