HOWLEY W NICHOLAS (Chief Executive Officer) sold 32.0% of their position (10.13K shares) of TRANSDIGM GROUP INC on the open market

Open‑market sale worth $12.32M — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 12 sales

HOWLEY W NICHOLAS

Filed: 7/21/2026ACC: 0001352573-26-000012

InsiderHOWLEY W NICHOLASCIK 1352573

→

IssuerTRANSDIGM GROUP INCCIK 1260221

DirectorOfficer· Chief Executive Officer

Since Nov 2018

-10.13K

Net shares

Net seller

$12.32M

Total sold

Open market trades

0B · 12S

Total transactions

10.13K acquired · 20.26K disposed

Non-Derivative Transactions13

Common Stock

Indirect

M · Option Exercise

+10.13K

Price / share

$66.47

Trade value

$673.47K

% of position

47.0%

7/20/2026

21.55K→31.68K

Common Stock

Indirect

S · Sale

−570.00

Price / share

$1.21K

Trade value

$689.88K

% of position

1.8%

7/20/2026

31.68K→31.11K

Common Stock

Indirect

S · Sale

−240.00

Price / share

$1.21K

Trade value

$290.75K

% of position

0.8%

7/20/2026

31.11K→30.87K

Common Stock

Indirect

S · Sale

−1.72K

Price / share

$1.21K

Trade value

$2.09M

% of position

5.6%

7/20/2026

30.87K→29.15K

Common Stock

Indirect

S · Sale

−1.44K

Price / share

$1.21K

Trade value

$1.74M

% of position

4.9%

7/20/2026

29.15K→27.71K

Common Stock

Indirect

S · Sale

−1.56K

Price / share

$1.21K

Trade value

$1.90M

% of position

5.6%

7/20/2026

27.71K→26.15K

Common Stock

Indirect

S · Sale

−260.00

Price / share

$1.22K

Trade value

$316.06K

% of position

1.0%

7/20/2026

26.15K→25.89K

Common Stock

Indirect

S · Sale

−603.00

Price / share

$1.22K

Trade value

$733.86K

% of position

2.3%

7/20/2026

25.89K→25.29K

Common Stock

Indirect

S · Sale

−1.46K

Price / share

$1.22K

Trade value

$1.78M

% of position

5.8%

7/20/2026

25.29K→23.83K

Common Stock

Indirect

S · Sale

−1.24K

Price / share

$1.22K

Trade value

$1.52M

% of position

5.2%

7/20/2026

23.83K→22.58K

Common Stock

Indirect

S · Sale

−130.00

Price / share

$1.22K

Trade value

$158.67K

% of position

0.6%

7/20/2026

22.58K→22.45K

Common Stock

Indirect

S · Sale

−465.00

Price / share

$1.22K

Trade value

$568.38K

% of position

2.1%

7/20/2026

22.45K→21.99K

Common Stock

Indirect

S · Sale

−440.00

Price / share

$1.22K

Trade value

$538.62K

% of position

2.0%

7/20/2026

21.99K→21.55K

Total

Net shares

+0.00

Net value

-$11.65M

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock Indirect	7/20/2026	M · Option Exercise	+10.13K	$66.47	$673.47K	47.0%	21.55K	31.68K
Common Stock Indirect	7/20/2026	S · Sale	−570.00	$1.21K	$689.88K	1.8%	31.68K	31.11K
Common Stock Indirect	7/20/2026	S · Sale	−240.00	$1.21K	$290.75K	0.8%	31.11K	30.87K
Common Stock Indirect	7/20/2026	S · Sale	−1.72K	$1.21K	$2.09M	5.6%	30.87K	29.15K
Common Stock Indirect	7/20/2026	S · Sale	−1.44K	$1.21K	$1.74M	4.9%	29.15K	27.71K
Common Stock Indirect	7/20/2026	S · Sale	−1.56K	$1.21K	$1.90M	5.6%	27.71K	26.15K
Common Stock Indirect	7/20/2026	S · Sale	−260.00	$1.22K	$316.06K	1.0%	26.15K	25.89K
Common Stock Indirect	7/20/2026	S · Sale	−603.00	$1.22K	$733.86K	2.3%	25.89K	25.29K
Common Stock Indirect	7/20/2026	S · Sale	−1.46K	$1.22K	$1.78M	5.8%	25.29K	23.83K
Common Stock Indirect	7/20/2026	S · Sale	−1.24K	$1.22K	$1.52M	5.2%	23.83K	22.58K
Common Stock Indirect	7/20/2026	S · Sale	−130.00	$1.22K	$158.67K	0.6%	22.58K	22.45K
Common Stock Indirect	7/20/2026	S · Sale	−465.00	$1.22K	$568.38K	2.1%	22.45K	21.99K
Common Stock Indirect	7/20/2026	S · Sale	−440.00	$1.22K	$538.62K	2.0%	21.99K	21.55K
Total			+0.00		-$11.65M

Derivative Transactions1

Stock Option

Indirect

M · Option Exercise

Converts to

Common Stock

10.13K shares

−10.13K

Strike price

66.47

Held after

11.83K

Exercisable

—

7/20/2026

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Stock Option Indirect	Common Stock10.13K shares	7/20/2026	M · Option Exercise	−10.13K	66.47	—	11.83K