Insider tradingForm 4

TransDigm Group INC (TDG) Insider Trading

4 open-market trades reported since Aug 18, 2026: 0 purchases worth $0 and 4 sales worth $26.3M.

By insider

Insider	Role	Buys	Bought	Sells	Sold	Latest
Joel Reiss	COO	0	$0	3	$13.7M	Oct 16, 2026
W. Nicholas Howley	Director	0	$0	1	$12.5M	Aug 19, 2026

TDG insider trades
Filed	Traded	Insider	Role	Type	Shares	Price ($)	Value	Holding	Filing
Oct 16	Oct 15	Joel ReissCOO	COO	▼ SELL10b5-1	4,100	1128.04	$4.62M	−37%	Form 4 ↗
Sep 16	Sep 15	Joel ReissCOO	COO	▼ SELL10b5-1	3,900	1094.58	$4.27M	−39%	Form 4 ↗
Aug 19	Aug 18	W. Nicholas HowleyDirector	Director (ind.)	▼ SELL10b5-1	10,132	1236.28	$12.5M	−27%	Form 4 ↗
Aug 18	Aug 17	Joel ReissCOO	COO	▼ SELL10b5-1	3,900	1238.76	$4.83M	−47%	Form 4 ↗

Source: SEC Form 4 filings, retrieved Oct 28, 2026. How we read filings