REISS JOEL (Co-Chief Operating Officer) sold 45.5% of their position (3K shares) of TRANSDIGM GROUP INC on the open market

Open‑market sale worth $4.27M — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 11 sales

REISS JOEL

Filed: 6/20/2025ACC: 0000950170-25-088583

InsiderREISS JOELCIK 1656109

→

IssuerTRANSDIGM GROUP INCCIK 1260221

Officer· Co-Chief Operating Officer

Since Feb 2026

-3K

Net shares

Net seller

$4.27M

Total sold

Open market trades

0B · 11S

Total transactions

3K acquired · 6K disposed

Non-Derivative Transactions12

Common Stock

Direct

M · Option Exercise

+3K

Price / share

$284.97

Trade value

$854.91K

% of position

83.3%

6/20/2025

3.60K→6.60K

Common Stock

Direct

S · Sale

−200.00

Price / share

$1.41K

Trade value

$282.02K

% of position

3.0%

6/20/2025

6.60K→6.40K

Common Stock

Direct

S · Sale

−100.00

Price / share

$1.41K

Trade value

$141.19K

% of position

1.6%

6/20/2025

6.40K→6.30K

Common Stock

Direct

S · Sale

−356.00

Price / share

$1.42K

Trade value

$505.77K

% of position

5.7%

6/20/2025

6.30K→5.94K

Common Stock

Direct

S · Sale

−154.00

Price / share

$1.42K

Trade value

$218.91K

% of position

2.6%

6/20/2025

5.94K→5.79K

Common Stock

Direct

S · Sale

−254.00

Price / share

$1.42K

Trade value

$361.32K

% of position

4.4%

6/20/2025

5.79K→5.54K

Common Stock

Direct

S · Sale

−447.00

Price / share

$1.42K

Trade value

$636.71K

% of position

8.1%

6/20/2025

5.54K→5.09K

Common Stock

Direct

S · Sale

−233.00

Price / share

$1.43K

Trade value

$332.08K

% of position

4.6%

6/20/2025

5.09K→4.86K

Common Stock

Direct

S · Sale

−495.00

Price / share

$1.43K

Trade value

$706.26K

% of position

10.2%

6/20/2025

4.86K→4.36K

Common Stock

Direct

S · Sale

−10.00

Price / share

$1.43K

Trade value

$14.28K

% of position

0.2%

6/20/2025

4.36K→4.35K

Common Stock

Direct

S · Sale

−451.00

Price / share

$1.43K

Trade value

$644.94K

% of position

10.4%

6/20/2025

4.35K→3.90K

Common Stock

Direct

S · Sale

−300.00

Price / share

$1.43K

Trade value

$429.33K

% of position

7.7%

6/20/2025

3.90K→3.60K

Total

Net shares

+0.00

Net value

-$3.42M

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock Direct	6/20/2025	M · Option Exercise	+3K	$284.97	$854.91K	83.3%	3.60K	6.60K
Common Stock Direct	6/20/2025	S · Sale	−200.00	$1.41K	$282.02K	3.0%	6.60K	6.40K
Common Stock Direct	6/20/2025	S · Sale	−100.00	$1.41K	$141.19K	1.6%	6.40K	6.30K
Common Stock Direct	6/20/2025	S · Sale	−356.00	$1.42K	$505.77K	5.7%	6.30K	5.94K
Common Stock Direct	6/20/2025	S · Sale	−154.00	$1.42K	$218.91K	2.6%	5.94K	5.79K
Common Stock Direct	6/20/2025	S · Sale	−254.00	$1.42K	$361.32K	4.4%	5.79K	5.54K
Common Stock Direct	6/20/2025	S · Sale	−447.00	$1.42K	$636.71K	8.1%	5.54K	5.09K
Common Stock Direct	6/20/2025	S · Sale	−233.00	$1.43K	$332.08K	4.6%	5.09K	4.86K
Common Stock Direct	6/20/2025	S · Sale	−495.00	$1.43K	$706.26K	10.2%	4.86K	4.36K
Common Stock Direct	6/20/2025	S · Sale	−10.00	$1.43K	$14.28K	0.2%	4.36K	4.35K
Common Stock Direct	6/20/2025	S · Sale	−451.00	$1.43K	$644.94K	10.4%	4.35K	3.90K
Common Stock Direct	6/20/2025	S · Sale	−300.00	$1.43K	$429.33K	7.7%	3.90K	3.60K
Total			+0.00		-$3.42M

Derivative Transactions1

Stock Option

Direct

M · Option Exercise

Converts to

Common Stock

3K shares

−3K

Strike price

284.97

Held after

59K

Exercisable

—

6/20/2025

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Stock Option Direct	Common Stock3K shares	6/20/2025	M · Option Exercise	−3K	284.97	—	59K