John Staer

TDG

John Staer serves as Director at TransDigm Group Incorporated (TDG). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

1 trades

$7.5K

Total Sells

2 trades

$5.64M

Net Position

Net Seller

$5.64M

Companies Traded

TDG

Active Period

Dec 2021 – Feb 2023

3 total trades

Most Recent

Sell TDG

Feb 14, 2023 · $3.44M

John Staer's Insider Trading at TransDigm Group Incorporated (TDG)

Buys

1 · $7.5K

Sells

2 · $5.64M

Total Shares Bought

Total Shares Sold

8,350

TDG Price Chart

Loading chart...

Date	Type	Shares	Avg Price	Value	Shares After
Feb 14, 2023	Sell	4,700	$731.34	$3.44M	2,191
Sep 8, 2022	Sell	3,650	$604.27	$2.21M	2,841
Dec 2, 2021	Buy	13	$578.32	$7.5K	26

Related Insiders

W Nicholas Howley

Director

TDGSell · Apr 21, 2026

Joel Reiss

officer: Co-Chief Operating Officer

TDGSell · Apr 16, 2026

SMALL ROBERT J

Director

TDGBuy · Feb 27, 2026

Michael Lisman

President & CEO

TDGBuy · Feb 9, 2026

Kevin M Stein

Director

TDGSell · Feb 3, 2026

Patrick Joseph Murphy

Co-Chief Operating Officer

TDGSell · Feb 3, 2026

Michael Graff

Director

TDGSell · Aug 27, 2025

Sarah Wynne

Chief Financial Officer

TDGSell · Jun 13, 2025

Explore More Insider Trading Data

TDG Insider Trading Activity

View all insider trades at TransDigm Group Incorporated

Industrials Sector Insider Trades

See insider activity across industrials stocks

Latest Insider Buys

Most recent insider purchases across all stocks

CEO Stock Purchases

Track CEO buying activity