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 $4.85M — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 19 sales

REISS JOEL

Filed: 3/17/2026ACC: 0001193125-26-110760

InsiderREISS JOELCIK 1656109

→

IssuerTRANSDIGM GROUP INCCIK 1260221

Officer· Co-Chief Operating Officer

Since Feb 2026

-3.90K

Net shares

Net seller

$4.85M

Total sold

Open market trades

0B · 19S

Total transactions

3.90K acquired · 7.80K disposed

Non-Derivative Transactions20

Common Stock

Direct

M · Option Exercise

+3.90K

Price / share

$284.97

Trade value

$1.11M

% of position

108.3%

3/16/2026

3.60K→7.50K

Common Stock

Direct

S · Sale

−20.00

Price / share

$1.22K

Trade value

$24.46K

% of position

0.3%

3/16/2026

7.50K→7.48K

Common Stock

Direct

S · Sale

−70.00

Price / share

$1.23K

Trade value

$86.22K

% of position

0.9%

3/16/2026

7.48K→7.41K

Common Stock

Direct

S · Sale

−60.00

Price / share

$1.23K

Trade value

$73.95K

% of position

0.8%

3/16/2026

7.41K→7.35K

Common Stock

Direct

S · Sale

−50.00

Price / share

$1.23K

Trade value

$61.68K

% of position

0.7%

3/16/2026

7.35K→7.30K

Common Stock

Direct

S · Sale

−40.00

Price / share

$1.24K

Trade value

$49.41K

% of position

0.5%

3/16/2026

7.30K→7.26K

Common Stock

Direct

S · Sale

−56.00

Price / share

$1.24K

Trade value

$69.23K

% of position

0.8%

3/16/2026

7.26K→7.20K

Common Stock

Direct

S · Sale

−134.00

Price / share

$1.24K

Trade value

$165.86K

% of position

1.9%

3/16/2026

7.20K→7.07K

Common Stock

Direct

S · Sale

−160.00

Price / share

$1.24K

Trade value

$198.17K

% of position

2.3%

3/16/2026

7.07K→6.91K

Common Stock

Direct

S · Sale

−260.00

Price / share

$1.24K

Trade value

$322.39K

% of position

3.8%

3/16/2026

6.91K→6.65K

Common Stock

Direct

S · Sale

−420.00

Price / share

$1.24K

Trade value

$521.19K

% of position

6.3%

3/16/2026

6.65K→6.23K

Common Stock

Direct

S · Sale

−320.00

Price / share

$1.24K

Trade value

$397.44K

% of position

5.1%

3/16/2026

6.23K→5.91K

Common Stock

Direct

S · Sale

−350.00

Price / share

$1.24K

Trade value

$435.05K

% of position

5.9%

3/16/2026

5.91K→5.56K

Common Stock

Direct

S · Sale

−120.00

Price / share

$1.24K

Trade value

$149.29K

% of position

2.2%

3/16/2026

5.56K→5.44K

Common Stock

Direct

S · Sale

−90.00

Price / share

$1.25K

Trade value

$112.06K

% of position

1.7%

3/16/2026

5.44K→5.35K

Common Stock

Direct

S · Sale

−227.00

Price / share

$1.25K

Trade value

$282.89K

% of position

4.2%

3/16/2026

5.35K→5.12K

Common Stock

Direct

S · Sale

−531.00

Price / share

$1.25K

Trade value

$662.20K

% of position

10.4%

3/16/2026

5.12K→4.59K

Common Stock

Direct

S · Sale

−490.00

Price / share

$1.25K

Trade value

$611.64K

% of position

10.7%

3/16/2026

4.59K→4.10K

Common Stock

Direct

S · Sale

−315.00

Price / share

$1.25K

Trade value

$393.53K

% of position

7.7%

3/16/2026

4.10K→3.79K

Common Stock

Direct

S · Sale

−187.00

Price / share

$1.25K

Trade value

$233.80K

% of position

4.9%

3/16/2026

3.79K→3.60K

Total

Net shares

+0.00

Net value

-$3.74M

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock Direct	3/16/2026	M · Option Exercise	+3.90K	$284.97	$1.11M	108.3%	3.60K	7.50K
Common Stock Direct	3/16/2026	S · Sale	−20.00	$1.22K	$24.46K	0.3%	7.50K	7.48K
Common Stock Direct	3/16/2026	S · Sale	−70.00	$1.23K	$86.22K	0.9%	7.48K	7.41K
Common Stock Direct	3/16/2026	S · Sale	−60.00	$1.23K	$73.95K	0.8%	7.41K	7.35K
Common Stock Direct	3/16/2026	S · Sale	−50.00	$1.23K	$61.68K	0.7%	7.35K	7.30K
Common Stock Direct	3/16/2026	S · Sale	−40.00	$1.24K	$49.41K	0.5%	7.30K	7.26K
Common Stock Direct	3/16/2026	S · Sale	−56.00	$1.24K	$69.23K	0.8%	7.26K	7.20K
Common Stock Direct	3/16/2026	S · Sale	−134.00	$1.24K	$165.86K	1.9%	7.20K	7.07K
Common Stock Direct	3/16/2026	S · Sale	−160.00	$1.24K	$198.17K	2.3%	7.07K	6.91K
Common Stock Direct	3/16/2026	S · Sale	−260.00	$1.24K	$322.39K	3.8%	6.91K	6.65K
Common Stock Direct	3/16/2026	S · Sale	−420.00	$1.24K	$521.19K	6.3%	6.65K	6.23K
Common Stock Direct	3/16/2026	S · Sale	−320.00	$1.24K	$397.44K	5.1%	6.23K	5.91K
Common Stock Direct	3/16/2026	S · Sale	−350.00	$1.24K	$435.05K	5.9%	5.91K	5.56K
Common Stock Direct	3/16/2026	S · Sale	−120.00	$1.24K	$149.29K	2.2%	5.56K	5.44K
Common Stock Direct	3/16/2026	S · Sale	−90.00	$1.25K	$112.06K	1.7%	5.44K	5.35K
Common Stock Direct	3/16/2026	S · Sale	−227.00	$1.25K	$282.89K	4.2%	5.35K	5.12K
Common Stock Direct	3/16/2026	S · Sale	−531.00	$1.25K	$662.20K	10.4%	5.12K	4.59K
Common Stock Direct	3/16/2026	S · Sale	−490.00	$1.25K	$611.64K	10.7%	4.59K	4.10K
Common Stock Direct	3/16/2026	S · Sale	−315.00	$1.25K	$393.53K	7.7%	4.10K	3.79K
Common Stock Direct	3/16/2026	S · Sale	−187.00	$1.25K	$233.80K	4.9%	3.79K	3.60K
Total			+0.00		-$3.74M

Derivative Transactions1

Stock Option

Direct

M · Option Exercise

Converts to

Common Stock

3.90K shares

−3.90K

Strike price

284.97

Held after

27.50K

Exercisable

—

3/16/2026

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Stock Option Direct	Common Stock3.90K shares	3/16/2026	M · Option Exercise	−3.90K	284.97	—	27.50K