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 $11.96M — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 25 sales

HOWLEY W NICHOLAS

Filed: 5/19/2026ACC: 0001352573-26-000007

InsiderHOWLEY W NICHOLASCIK 1352573

→

IssuerTRANSDIGM GROUP INCCIK 1260221

DirectorOfficer· Chief Executive Officer

Since Nov 2018

-10.13K

Net shares

Net seller

$11.96M

Total sold

Open market trades

0B · 25S

Total transactions

10.13K acquired · 20.26K disposed

Non-Derivative Transactions26

Common Stock

Indirect

M · Option Exercise

+10.13K

Price / share

$66.47

Trade value

$673.47K

% of position

47.0%

5/18/2026

21.55K→31.68K

Common Stock

Indirect

S · Sale

−40.00

Price / share

$1.15K

Trade value

$45.81K

% of position

0.1%

5/18/2026

31.68K→31.64K

Common Stock

Indirect

S · Sale

−60.00

Price / share

$1.15K

Trade value

$68.79K

% of position

0.2%

5/18/2026

31.64K→31.58K

Common Stock

Indirect

S · Sale

−80.00

Price / share

$1.15K

Trade value

$92.01K

% of position

0.3%

5/18/2026

31.58K→31.50K

Common Stock

Indirect

S · Sale

−80.00

Price / share

$1.16K

Trade value

$92.80K

% of position

0.3%

5/18/2026

31.50K→31.42K

Common Stock

Indirect

S · Sale

−50.00

Price / share

$1.16K

Trade value

$58.15K

% of position

0.2%

5/18/2026

31.42K→31.37K

Common Stock

Indirect

S · Sale

−23.00

Price / share

$1.16K

Trade value

$26.77K

% of position

0.1%

5/18/2026

31.37K→31.35K

Common Stock

Indirect

S · Sale

−110.00

Price / share

$1.17K

Trade value

$128.21K

% of position

0.4%

5/18/2026

31.35K→31.24K

Common Stock

Indirect

S · Sale

−586.00

Price / share

$1.17K

Trade value

$683.89K

% of position

1.9%

5/18/2026

31.24K→30.65K

Common Stock

Indirect

S · Sale

−463.00

Price / share

$1.17K

Trade value

$540.93K

% of position

1.5%

5/18/2026

30.65K→30.19K

Common Stock

Indirect

S · Sale

−390.00

Price / share

$1.17K

Trade value

$456K

% of position

1.3%

5/18/2026

30.19K→29.80K

Common Stock

Indirect

S · Sale

−60.00

Price / share

$1.17K

Trade value

$70.22K

% of position

0.2%

5/18/2026

29.80K→29.74K

Common Stock

Indirect

S · Sale

−220.00

Price / share

$1.17K

Trade value

$257.91K

% of position

0.7%

5/18/2026

29.74K→29.52K

Common Stock

Indirect

S · Sale

−685.00

Price / share

$1.17K

Trade value

$804.30K

% of position

2.3%

5/18/2026

29.52K→28.83K

Common Stock

Indirect

S · Sale

−313.00

Price / share

$1.18K

Trade value

$368.07K

% of position

1.1%

5/18/2026

28.83K→28.52K

Common Stock

Indirect

S · Sale

−40.00

Price / share

$1.18K

Trade value

$47.07K

% of position

0.1%

5/18/2026

28.52K→28.48K

Common Stock

Indirect

S · Sale

−140.00

Price / share

$1.18K

Trade value

$164.94K

% of position

0.5%

5/18/2026

28.48K→28.34K

Common Stock

Indirect

S · Sale

−250.00

Price / share

$1.18K

Trade value

$294.92K

% of position

0.9%

5/18/2026

28.34K→28.09K

Common Stock

Indirect

S · Sale

−437.00

Price / share

$1.18K

Trade value

$516.08K

% of position

1.6%

5/18/2026

28.09K→27.65K

Common Stock

Indirect

S · Sale

−290.00

Price / share

$1.18K

Trade value

$343.01K

% of position

1.0%

5/18/2026

27.65K→27.36K

Common Stock

Indirect

S · Sale

−87.00

Price / share

$1.18K

Trade value

$103K

% of position

0.3%

5/18/2026

27.36K→27.28K

Common Stock

Indirect

S · Sale

−1.07K

Price / share

$1.19K

Trade value

$1.27M

% of position

3.9%

5/18/2026

27.28K→26.20K

Common Stock

Indirect

S · Sale

−448.00

Price / share

$1.19K

Trade value

$531.32K

% of position

1.7%

5/18/2026

26.20K→25.75K

Common Stock

Indirect

S · Sale

−272.00

Price / share

$1.19K

Trade value

$322.89K

% of position

1.1%

5/18/2026

25.75K→25.48K

Common Stock

Indirect

S · Sale

−3.80K

Price / share

$1.19K

Trade value

$4.52M

% of position

14.9%

5/18/2026

25.48K→21.68K

Common Stock

Indirect

S · Sale

−132.00

Price / share

$1.19K

Trade value

$156.95K

% of position

0.6%

5/18/2026

21.68K→21.55K

Total

Net shares

+0.00

Net value

-$11.29M

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock Indirect	5/18/2026	M · Option Exercise	+10.13K	$66.47	$673.47K	47.0%	21.55K	31.68K
Common Stock Indirect	5/18/2026	S · Sale	−40.00	$1.15K	$45.81K	0.1%	31.68K	31.64K
Common Stock Indirect	5/18/2026	S · Sale	−60.00	$1.15K	$68.79K	0.2%	31.64K	31.58K
Common Stock Indirect	5/18/2026	S · Sale	−80.00	$1.15K	$92.01K	0.3%	31.58K	31.50K
Common Stock Indirect	5/18/2026	S · Sale	−80.00	$1.16K	$92.80K	0.3%	31.50K	31.42K
Common Stock Indirect	5/18/2026	S · Sale	−50.00	$1.16K	$58.15K	0.2%	31.42K	31.37K
Common Stock Indirect	5/18/2026	S · Sale	−23.00	$1.16K	$26.77K	0.1%	31.37K	31.35K
Common Stock Indirect	5/18/2026	S · Sale	−110.00	$1.17K	$128.21K	0.4%	31.35K	31.24K
Common Stock Indirect	5/18/2026	S · Sale	−586.00	$1.17K	$683.89K	1.9%	31.24K	30.65K
Common Stock Indirect	5/18/2026	S · Sale	−463.00	$1.17K	$540.93K	1.5%	30.65K	30.19K
Common Stock Indirect	5/18/2026	S · Sale	−390.00	$1.17K	$456K	1.3%	30.19K	29.80K
Common Stock Indirect	5/18/2026	S · Sale	−60.00	$1.17K	$70.22K	0.2%	29.80K	29.74K
Common Stock Indirect	5/18/2026	S · Sale	−220.00	$1.17K	$257.91K	0.7%	29.74K	29.52K
Common Stock Indirect	5/18/2026	S · Sale	−685.00	$1.17K	$804.30K	2.3%	29.52K	28.83K
Common Stock Indirect	5/18/2026	S · Sale	−313.00	$1.18K	$368.07K	1.1%	28.83K	28.52K
Common Stock Indirect	5/18/2026	S · Sale	−40.00	$1.18K	$47.07K	0.1%	28.52K	28.48K
Common Stock Indirect	5/18/2026	S · Sale	−140.00	$1.18K	$164.94K	0.5%	28.48K	28.34K
Common Stock Indirect	5/18/2026	S · Sale	−250.00	$1.18K	$294.92K	0.9%	28.34K	28.09K
Common Stock Indirect	5/18/2026	S · Sale	−437.00	$1.18K	$516.08K	1.6%	28.09K	27.65K
Common Stock Indirect	5/18/2026	S · Sale	−290.00	$1.18K	$343.01K	1.0%	27.65K	27.36K
Common Stock Indirect	5/18/2026	S · Sale	−87.00	$1.18K	$103K	0.3%	27.36K	27.28K
Common Stock Indirect	5/18/2026	S · Sale	−1.07K	$1.19K	$1.27M	3.9%	27.28K	26.20K
Common Stock Indirect	5/18/2026	S · Sale	−448.00	$1.19K	$531.32K	1.7%	26.20K	25.75K
Common Stock Indirect	5/18/2026	S · Sale	−272.00	$1.19K	$322.89K	1.1%	25.75K	25.48K
Common Stock Indirect	5/18/2026	S · Sale	−3.80K	$1.19K	$4.52M	14.9%	25.48K	21.68K
Common Stock Indirect	5/18/2026	S · Sale	−132.00	$1.19K	$156.95K	0.6%	21.68K	21.55K
Total			+0.00		-$11.29M

Derivative Transactions1

Stock Option

Indirect

M · Option Exercise

Converts to

Common Stock

10.13K shares

−10.13K

Strike price

66.47

Held after

32.10K

Exercisable

—

5/18/2026

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Stock Option Indirect	Common Stock10.13K shares	5/18/2026	M · Option Exercise	−10.13K	66.47	—	32.10K