By CapitalSnitch Research Desk · updated Oct 11, 2026 · data from SEC filings and official Congress disclosures
It has been a mixed year for TransDigm Group INC insiders: $3.8 million bought by two people and $496.8 million sold by five, so more selling than buying overall.
Biggest single buyer: Lisman Michael, CEO, with roughly $1.2 million. C-suite participation is part of the picture here.
Members of Congress reported 29 trades in TDG over the past two years (seven members). On the institutional side, 1,141 funds reported holding TDG at the end of Q2 2026, and more funds bought than sold. 7 quarters in a row of net selling by insiders. Insiders bought in 2 of the last 7 full quarters.
Are insiders buying or selling TDG stock?
In the last 12 months TransDigm Group INC insiders made open-market purchases worth about $3.8 million and sales worth about $496.8 million. Data comes from SEC Form 4 filings, updated every 30 minutes on CapitalSnitch.
When was the last insider trade in TDG?
The most recent open-market insider trade in TDG was filed on 2026-09-16.
How many institutions own TDG?
1,141 investment managers reported holding TDG in SEC Form 13F filings for Q2 2026.
Has any member of Congress traded TDG?
Yes. Members of Congress reported 29 trades in TDG over the past two years. The full list is free on CapitalSnitch.
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Public-record data for research and education, not investment advice. Insider sales are often pre-planned (10b5-1).
Congress data: Data derived from public disclosures filed under the Ethics in Government Act and the STOCK Act, republished free for public transparency and news reporting. Disclosures may lag the trade by 45 days or more and show amounts only as ranges. This data may not be used for credit rating, loan underwriting, solicitation of money (political, charitable or other), direct-mail or commercial targeting (5 U.S.C. 13107).