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TransDigm Group TDG

TransDigm Group is the 197th largest S&P 500 company by market cap, worth $61.1 billion. 12 directors have filed with the SEC in the last 12 months (who counts), 1 of them an executive. 4 other officers are on file. At 30 Jun 2026, Capital Group was its largest institutional holder, with 22.5% of the company.

CEO
Michael Lisman
Sector
Industrials
Sub-industry
Aerospace & Defense
Headquarters
Cleveland, Ohio
Founded
1993
More
Wikipedia
Market cap
$61.1B
197th largest, 23 Oct 2026 close
Revenue
$8.8B
Fiscal year 2025
Price to sales
6.9
Market cap over revenue
Employees
16,500
10-K, 30 Sep 2025
Market cap per employee
$3.7M
Market cap over employees
Connections
0
S&P 500 companies sharing a director or officer

Largest institutional holders

Each fund group's share of TransDigm Group. Where a company has several share classes, the share is of its total value.

13F filings for the quarter to 30 Jun 2026

These five hold 51.0% of TransDigm Group.

Source: SEC Form 13F data sets, SEC XBRL shares outstanding 路 All holders

Board and officers

Roles filed up to 30 Sep 2026

NameTitle
Directors (12)
Michael LismanPresident & CEOLast filed 9 Feb 2026President & CEO
David BarrDirectorDirector
Jane M. CroninDirectorDirector
Michael GraffDirectorDirector
Sean P. HennessyDirectorDirector
W. Nicholas HowleyDirectorDirector
Irina Igorevna KrasikDirectorDirector
Gary E. McCulloughDirectorDirector
Peter PalmerDirectorDirector
Michele SantanaDirectorDirector
Robert J. SmallDirectorDirector
Kevin M. SteinDirectorLast filed 3 Feb 2026Director
Officers (4)
Sarah WynneChief Financial OfficerLast filed 6 Feb 2026Chief Financial Officer
Patrick Joseph MurphyCo-Chief Operating OfficerLast filed 25 Feb 2026Co-Chief Operating Officer
Joel ReissCo-Chief Operating OfficerLast filed 16 Sep 2026Co-Chief Operating Officer
Armani VadieeGC, CCO, SecretaryLast filed 6 Nov 2025GC, CCO, Secretary

Source: SEC insider filings (Forms 3, 4 and 5), TransDigm Group's Form 4 filings 路 All directors and officers

TransDigm Group's market cap since December 2008

Weekly, up to 23 Oct 2026

Show equal percentage changes as equal steps.
201020122014201620182020202220242026$61.1B

Source: Yahoo Finance closing prices, SEC XBRL shares outstanding

Workforce

Headcount at 30 Sep 2025

Employees
16,500
As of September 30, 2025, we had approximately 16,500 full-time, part-time and temporary employees.
TransDigm Group Form 10-K

Source: TransDigm Group Form 10-K

Insider trades

Open-market buys and sales by directors and officers. Grants, option exercises and shares withheld for tax are left out.

Trades from 30 Sep 2025 to 30 Sep 2026

Directors and officers sold $497 million of stock in 40 sales and bought $3.8 million in 3 purchases in the 12 months to 30 Sep 2026.

DatePersonTitleTypeSharesValue
15 Sep 2026SaleJoel ReissCo-Chief Operating OfficerCo-Chief Operating OfficerSale3,900$4.3M
18 Aug 2026SaleW. Nicholas HowleyDirectorDirectorSale10,132$13M
17 Aug 2026SaleJoel ReissCo-Chief Operating OfficerCo-Chief Operating OfficerSale3,900$4.8M
20 Jul 2026SaleW. Nicholas HowleyDirectorDirectorSale10,132$12M
15 Jul 2026SaleJoel ReissCo-Chief Operating OfficerCo-Chief Operating OfficerSale3,900$4.7M
18 Jun 2026SaleW. Nicholas HowleyDirectorDirectorSale30,396$40M
15 Jun 2026SaleJoel ReissCo-Chief Operating OfficerCo-Chief Operating OfficerSale3,900$5.0M
18 May 2026SaleW. Nicholas HowleyDirectorDirectorSale10,132$12M
15 May 2026SaleJoel ReissCo-Chief Operating OfficerCo-Chief Operating OfficerSale3,900$4.5M
20 Apr 2026SaleW. Nicholas HowleyDirectorDirectorSale10,132$13M

Showing 10 of 43 trades

Source: SEC insider transactions data sets, TransDigm Group's Form 4 filings

Trades by members of Congress and officials

Trades members of Congress and senior executive branch officials disclosed, including their families'. Amounts are filed as ranges.

Trades from 20 Oct 2023 to 20 Oct 2026

10 people disclosed 30 purchases and 20 sales of TransDigm Group stock since October 2023.

DateMember or officialTypeAmount
28 Aug 2026Donald J Trump (President)President 路 SoldSale$15,001 to $50,000$15K to $50K
25 Aug 2026April McClain Delaney (House, D-MD)House, D-MD 路 SoldSale$100,001 to $250,000$100K to $250K
28 Jul 2026April McClain Delaney (House, D-MD)House, D-MD 路 BoughtPurchase$1,001 to $15,000$1K to $15K
22 May 2026April McClain Delaney (House, D-MD)House, D-MD 路 BoughtPurchase$1,001 to $15,000$1K to $15K
21 May 2026April McClain Delaney (House, D-MD)House, D-MD 路 BoughtPurchase$1,001 to $15,000$1K to $15K
18 May 2026Donald J Trump (President)President 路 SoldSale$100,001 to $250,000$100K to $250K
18 May 2026Donald J Trump (President)President 路 SoldSale$1,001 to $15,000$1K to $15K
13 May 2026April McClain Delaney (House, D-MD)House, D-MD 路 BoughtPurchase$1,001 to $15,000$1K to $15K
8 May 2026April McClain Delaney (House, D-MD)House, D-MD 路 BoughtPurchase$1,001 to $15,000$1K to $15K
7 May 2026April McClain Delaney (House, D-MD)House, D-MD 路 BoughtPurchase$1,001 to $15,000$1K to $15K

Showing 10 of 50 trades

Source: House, Senate and OGE disclosures via the Congress trading monitor

Not on file: no director or officer shared with another S&P 500 company and no WARN layoff notices under its own name since October 2023.