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Who

W. Nicholas Howley

Director

Company insider

Files Form 4 as: Exec. Chairman of the Board, Transdigm Group; Director, Perimeter Solutions, SA; Director, Polypore International.

In numbers

Trades disclosed
3,904
Buys
7
Sells
238
Bought
$5.0M
Sold
$1.5B
Companies
3
Companies where not an officer
2
First trade
20 Mar 2006
Last trade
18 Sep 2026
Last filed
21 Sep 2026

Companies traded

Where they are an officer
TDG Transdigm GroupDirector, Officer · Aerospace & Defense · last 18 Sep 20267 buys · 233 sells
Everywhere else they filed: board seats, 10% stakes, other companies
PRM Perimeter Solutions, SADirector · Chemicals · last 23 Apr 20260 buys · 0 sells
Polypore InternationalDirector · last 10 Aug 20120 buys · 5 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
30Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
18 Sep 2026filed 21 Sep 2026TDG Transdigm GroupAerospace & DefenseSEC FORM 4 Code A$137K126 at $1,085.00filing
18 Sep 2026filed 21 Sep 2026TDG Transdigm GroupAerospace & DefenseSEC FORM 4 Code A$137K126 at $1,085.00filing
18 Aug 2026filed 19 Aug 2026TDG Transdigm GroupAerospace & DefenseSEC FORM 4 Code M$673K10,132 at $66.47filing
18 Aug 2026filed 19 Aug 2026TDG Transdigm GroupAerospace & DefenseSEC FORM 4 Sold$173K140 at $1,236.12filing
18 Aug 2026filed 19 Aug 2026TDG Transdigm GroupAerospace & DefenseSEC FORM 4 Sold$309K250 at $1,236.89filing
18 Aug 2026filed 19 Aug 2026TDG Transdigm GroupAerospace & DefenseSEC FORM 4 Sold$644K520 at $1,238.08filing
18 Aug 2026filed 19 Aug 2026TDG Transdigm GroupAerospace & DefenseSEC FORM 4 Sold$4.9M3,980 at $1,239.17filing
18 Aug 2026filed 19 Aug 2026TDG Transdigm GroupAerospace & DefenseSEC FORM 4 Sold$1.6M1,313 at $1,240.42filing
18 Aug 2026filed 19 Aug 2026TDG Transdigm GroupAerospace & DefenseSEC FORM 4 Sold$236K190 at $1,241.14filing
18 Aug 2026filed 19 Aug 2026TDG Transdigm Groupoption or derivative · Aerospace & DefenseSEC FORM 4 Code M—10,132 at $0.00filing
18 Aug 2026filed 19 Aug 2026TDG Transdigm GroupAerospace & DefenseSEC FORM 4 Sold$250K204 at $1,225.60filing
18 Aug 2026filed 19 Aug 2026TDG Transdigm GroupAerospace & DefenseSEC FORM 4 Sold$86K70 at $1,227.62filing
18 Aug 2026filed 19 Aug 2026TDG Transdigm Groupoption or derivative · Aerospace & DefenseSEC FORM 4 Code M—10,132 at $0.00filing
18 Aug 2026filed 19 Aug 2026TDG Transdigm GroupAerospace & DefenseSEC FORM 4 Sold$356K290 at $1,229.09filing
18 Aug 2026filed 19 Aug 2026TDG Transdigm GroupAerospace & DefenseSEC FORM 4 Sold$701K570 at $1,230.02filing
18 Aug 2026filed 19 Aug 2026TDG Transdigm GroupAerospace & DefenseSEC FORM 4 Sold$1.0M830 at $1,231.12filing
18 Aug 2026filed 19 Aug 2026TDG Transdigm GroupAerospace & DefenseSEC FORM 4 Sold$1.3M1,055 at $1,232.01filing
18 Aug 2026filed 19 Aug 2026TDG Transdigm GroupAerospace & DefenseSEC FORM 4 Sold$555K450 at $1,233.30filing
18 Aug 2026filed 19 Aug 2026TDG Transdigm GroupAerospace & DefenseSEC FORM 4 Sold$333K270 at $1,234.69filing
18 Aug 2026filed 19 Aug 2026TDG Transdigm GroupAerospace & DefenseSEC FORM 4 Code M$673K10,132 at $66.47filing

The newest 500 lines are listed; the numbers count every line.

News

AIRO Group (NASDAQ:AIRO) versus Transdigm Group (NYSE:TDG) Financial ComparisonTDG · themarketsdaily.com · 16 Oct 2026Reviewing Transdigm Group (NYSE:TDG) & Bombardier (OTCMKTS:BDRBF)TDG · dailypolitical.com · 13 Oct 2026

0 headlines in the last 90 days name W. Nicholas Howley; 2 articles from the last 14 days about the 1 company they traded most, at most three about any one of them.

Sectors

Industrials240
Not placed5

Buys in green, sells in red, by the company’s sector.

Related people

Joel ReissCo-Chief Operating Officer · Co-Chief Operating Officer at TransDigm Group, filing Form 4 there in the last year
Robert J. SmallDirector · Director at TransDigm Group, filing Form 4 there in the last year
David BarrDirector · Director at TransDigm Group, filing Form 4 there in the last year
Michael GraffDirector · Director at TransDigm Group, filing Form 4 there in the last year
Peter PalmerDirector · Director at TransDigm Group, filing Form 4 there in the last year
Donald J. TrumpPresident · Also traded TDG in the last 90 days
April McClain DelaneyRepresentative, MD-06 · Also traded TDG in the last 90 days