TDG

TransDigm Group INC

Latest Form 4:Sale$12.5MbyHowley W Nicholas (Director) · filed Aug 19, 2026

TransDigm Group INC (TDG) has 47 SEC Form 4 filings (500 transaction rows) in the rolling window, disclosed by 6 distinct insiders. Most recent filing: Aug 19, 2026.

The most active filer is Director Stein Kevin M with 10 filings. Insiders have net sold $117.5M over the trailing 6 months.

  • Industry:Aerospace & Defense
  • CEO:Michael J. Lisman
  • Employees:16,500
  • HQ:Cleveland, OH, US
  • IPO:2006-03-15

Insider Buying

$1.2M

reported purchases (SEC code P)

Insider Selling

$437.0M

reported sales (SEC code S)

Unique Insiders

6

in the rolling window

Market Cap

$65.6B

latest known value

Source
Sale$12.5MAug 19SEC ↗
Sale$4.8MAug 18SEC ↗
Sale$12.3MJul 21SEC ↗
Sale$4.7MJul 17SEC ↗
Sale$13.4MJun 22SEC ↗
Sale$5.0MJun 16SEC ↗
Sale$12.0MMay 19SEC ↗
Sale$4.5MMay 18SEC ↗
Sale$12.8MApr 21SEC ↗
Sale$5.0MApr 16SEC ↗
Sale$12.3MMar 19SEC ↗
Sale$4.9MMar 17SEC ↗
Purchase$1KFeb 27SEC ↗
Howley W NicholasFirst in 3 months
Sale$13.3MFeb 20SEC ↗
Sale$5.0MFeb 18SEC ↗
Purchase$1.2MFeb 9SEC ↗
Sale$68.5MFeb 3SEC ↗
Sale$415KFeb 3SEC ↗
Sale$5.6MJan 16SEC ↗
Sale$10.7MJan 16SEC ↗
Sale$24.4MJan 9SEC ↗
Sale$34.3MJan 6SEC ↗
Sale$385KJan 5SEC ↗
Sale$5.0MDec 16SEC ↗
Sale$6.1MDec 11SEC ↗
Sale$121.5MDec 9SEC ↗
Sale$23.9MDec 5SEC ↗
Sale$392KDec 2SEC ↗
Sale$6.2MDec 1SEC ↗
Sale$5.7MNov 26SEC ↗
Sale$41KNov 26SEC ↗
Sale$313KNov 24SEC ↗
Sale$891KNov 21SEC ↗

Congress trading TDG

See timeline →
  • DRep. April DelaneyPurchase$1,001 - $15,0002026-07-28
  • RSen. Alan ArmstrongPurchase$1,001 - $15,0002026-03-27
  • DRep. April DelaneyPurchase$1,001 - $15,0002026-04-17
  • DRep. April DelaneyPurchase$1,001 - $15,0002026-04-15
  • DRep. April DelaneyPurchase$1,001 - $15,0002026-04-20
  • DRep. April DelaneyPurchase$15,001 - $50,0002026-04-16

STOCK Act disclosures are filed up to 45 days after the trade. Amount is a disclosed range, not an exact figure.

Related companies

TransDigm Group INC is in the Manufacturing sector.