REISS JOEL (Co-Chief Operating Officer) sold 52.0% of their position (3.90K shares) of TRANSDIGM GROUP INC on the open market

Open‑market sale worth $4.98M — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 18 sales

REISS JOEL

Filed: 6/16/2026ACC: 0001656109-26-000003

InsiderREISS JOELCIK 1656109

→

IssuerTRANSDIGM GROUP INCCIK 1260221

Officer· Co-Chief Operating Officer

Since Feb 2026

-3.90K

Net shares

Net seller

$4.98M

Total sold

Open market trades

0B · 18S

Total transactions

3.90K acquired · 7.80K disposed

Non-Derivative Transactions19

Common Stock

Direct

M · Option Exercise

+3.90K

Price / share

$284.97

Trade value

$1.11M

% of position

108.3%

6/15/2026

3.60K→7.50K

Common Stock

Direct

S · Sale

−32.00

Price / share

$1.27K

Trade value

$40.60K

% of position

0.4%

6/15/2026

7.50K→7.47K

Common Stock

Direct

S · Sale

−58.00

Price / share

$1.27K

Trade value

$73.66K

% of position

0.8%

6/15/2026

7.47K→7.41K

Common Stock

Direct

S · Sale

−146.00

Price / share

$1.27K

Trade value

$185.61K

% of position

2.0%

6/15/2026

7.41K→7.26K

Common Stock

Direct

S · Sale

−174.00

Price / share

$1.27K

Trade value

$221.39K

% of position

2.4%

6/15/2026

7.26K→7.09K

Common Stock

Direct

S · Sale

−300.00

Price / share

$1.27K

Trade value

$382K

% of position

4.2%

6/15/2026

7.09K→6.79K

Common Stock

Direct

S · Sale

−600.00

Price / share

$1.27K

Trade value

$764.61K

% of position

8.8%

6/15/2026

6.79K→6.19K

Common Stock

Direct

S · Sale

−502.00

Price / share

$1.28K

Trade value

$640.23K

% of position

8.1%

6/15/2026

6.19K→5.69K

Common Stock

Direct

S · Sale

−428.00

Price / share

$1.28K

Trade value

$546.31K

% of position

7.5%

6/15/2026

5.69K→5.26K

Common Stock

Direct

S · Sale

−494.00

Price / share

$1.28K

Trade value

$631.05K

% of position

9.4%

6/15/2026

5.26K→4.77K

Common Stock

Direct

S · Sale

−316.00

Price / share

$1.28K

Trade value

$404.02K

% of position

6.6%

6/15/2026

4.77K→4.45K

Common Stock

Direct

S · Sale

−158.00

Price / share

$1.28K

Trade value

$202.17K

% of position

3.6%

6/15/2026

4.45K→4.29K

Common Stock

Direct

S · Sale

−152.00

Price / share

$1.28K

Trade value

$194.64K

% of position

3.5%

6/15/2026

4.29K→4.14K

Common Stock

Direct

S · Sale

−150.00

Price / share

$1.28K

Trade value

$192.28K

% of position

3.6%

6/15/2026

4.14K→3.99K

Common Stock

Direct

S · Sale

−90.00

Price / share

$1.28K

Trade value

$115.43K

% of position

2.3%

6/15/2026

3.99K→3.90K

Common Stock

Direct

S · Sale

−136.00

Price / share

$1.28K

Trade value

$174.59K

% of position

3.5%

6/15/2026

3.90K→3.76K

Common Stock

Direct

S · Sale

−74.00

Price / share

$1.29K

Trade value

$95.09K

% of position

2.0%

6/15/2026

3.76K→3.69K

Common Stock

Direct

S · Sale

−60.00

Price / share

$1.29K

Trade value

$77.15K

% of position

1.6%

6/15/2026

3.69K→3.63K

Common Stock

Direct

S · Sale

−30.00

Price / share

$1.29K

Trade value

$38.63K

% of position

0.8%

6/15/2026

3.63K→3.60K

Total

Net shares

+0.00

Net value

-$3.87M

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock Direct	6/15/2026	M · Option Exercise	+3.90K	$284.97	$1.11M	108.3%	3.60K	7.50K
Common Stock Direct	6/15/2026	S · Sale	−32.00	$1.27K	$40.60K	0.4%	7.50K	7.47K
Common Stock Direct	6/15/2026	S · Sale	−58.00	$1.27K	$73.66K	0.8%	7.47K	7.41K
Common Stock Direct	6/15/2026	S · Sale	−146.00	$1.27K	$185.61K	2.0%	7.41K	7.26K
Common Stock Direct	6/15/2026	S · Sale	−174.00	$1.27K	$221.39K	2.4%	7.26K	7.09K
Common Stock Direct	6/15/2026	S · Sale	−300.00	$1.27K	$382K	4.2%	7.09K	6.79K
Common Stock Direct	6/15/2026	S · Sale	−600.00	$1.27K	$764.61K	8.8%	6.79K	6.19K
Common Stock Direct	6/15/2026	S · Sale	−502.00	$1.28K	$640.23K	8.1%	6.19K	5.69K
Common Stock Direct	6/15/2026	S · Sale	−428.00	$1.28K	$546.31K	7.5%	5.69K	5.26K
Common Stock Direct	6/15/2026	S · Sale	−494.00	$1.28K	$631.05K	9.4%	5.26K	4.77K
Common Stock Direct	6/15/2026	S · Sale	−316.00	$1.28K	$404.02K	6.6%	4.77K	4.45K
Common Stock Direct	6/15/2026	S · Sale	−158.00	$1.28K	$202.17K	3.6%	4.45K	4.29K
Common Stock Direct	6/15/2026	S · Sale	−152.00	$1.28K	$194.64K	3.5%	4.29K	4.14K
Common Stock Direct	6/15/2026	S · Sale	−150.00	$1.28K	$192.28K	3.6%	4.14K	3.99K
Common Stock Direct	6/15/2026	S · Sale	−90.00	$1.28K	$115.43K	2.3%	3.99K	3.90K
Common Stock Direct	6/15/2026	S · Sale	−136.00	$1.28K	$174.59K	3.5%	3.90K	3.76K
Common Stock Direct	6/15/2026	S · Sale	−74.00	$1.29K	$95.09K	2.0%	3.76K	3.69K
Common Stock Direct	6/15/2026	S · Sale	−60.00	$1.29K	$77.15K	1.6%	3.69K	3.63K
Common Stock Direct	6/15/2026	S · Sale	−30.00	$1.29K	$38.63K	0.8%	3.63K	3.60K
Total			+0.00		-$3.87M

Derivative Transactions1

Stock Option

Direct

M · Option Exercise

Converts to

Common Stock

3.90K shares

−3.90K

Strike price

284.97

Held after

15.80K

Exercisable

—

6/15/2026

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Stock Option Direct	Common Stock3.90K shares	6/15/2026	M · Option Exercise	−3.90K	284.97	—	15.80K