TransDigm Group INC (TDG)

About TransDigm Group INC

TransDigm Group INC designs, produces, and supplies highly engineered aircraft components used in commercial and military aircraft worldwide. Its products include aircraft seatbelts, cockpit security systems, parachutes, and specialized aerospace equipment, serving commercial airlines, aircraft manufacturers, defense agencies, and other industrial customers. The company operates through three segments: Power & Control, Airframe, and Non-aviation, providing components for aircraft power systems, airframe applications, and non-aviation markets such as ground transportation and space applications.

Snapshot

Fundamentals are from SEC filings for FY2025, the latest annual period (ended September 30, 2025). P/E and market cap are derived from stored market prices, last retrieved on a rolling basis and typically within the past week.

Peer comparison

Where TransDigm Group’s fundamentals sit among the 684 Industrials companies. Each figure is ranked only against peers that report it, from lowest (left) to highest (right).

TransDigm Group’s operating margin of 47.2% ranks in the 98th percentile of the 605 Industrials companies reporting it. TransDigm Group’s net margin of 23.5% ranks in the 95th percentile of the 645 Industrials companies reporting it. TransDigm Group’s gross margin of 60.1% ranks in the 93rd percentile of the 466 Industrials companies reporting it.

No reported insider purchases (code P) in the last 90 days; 162 insider sales totaling $79.5M. For context, about 14% of companies in the universe saw any reported insider purchase (code P) in the same window. Browse insider activity →

Percentiles describe where a figure sits among sector peers reporting it (100th = highest). They are position within a peer group, not a rating, and not investment advice. Short interest ranking uses days to cover from FINRA Consolidated Short Interest data; FINRA is the owner and source of that data, included at no additional charge.

Institutional ownership

Held by 5 of the superinvestors we track (plus 7 quant / multi-strat books), based on each investor’s most recent 13F; periods vary by investor (newest: Q2 2026).

From quarterly Form 13F filings, which can be up to 45 days delayed. Long US-listed positions only: excludes short positions, options, cash, bonds, and non-US holdings, so this is not a manager’s complete portfolio. Counts are of the investors we track, not all institutions. Not investment advice.

Recent insider activity

Non-derivative buys and sells (codes P/S) reported by officers, directors and 10% owners on SEC Form 4.

Reported non-derivative purchases and sales (codes P/S) — which may be open-market or private; excludes option exercises, grants, and shares withheld for taxes. Dates shown are the trade date; a Form 4 can be filed days to years later. A sale can be routine (e.g. a pre-set 10b5-1 plan), so read individual transactions in context. From SEC Form 4. Not investment advice.

Short interest

Total shares sold short as of each twice-monthly FINRA settlement. Rising short interest means more investors are positioned against the stock; days to cover estimates how many trading days of average volume that position represents.

Source: FINRA Consolidated Short Interest. FINRA is the owner and source of the FINRA-supplied data, which is included at no additional charge for your own personal or professional use; republishing or redistributing it is not permitted. Settlement dates are shown; FINRA publishes each settlement about nine business days later, so the latest figure can be two to four weeks old. Not presented as a percentage of float. No FINRA endorsement of this product is implied. Not investment advice.

Quarterly trend (as reported)

Latest 8 reported quarters, from company XBRL filings on SEC EDGAR.

Company facts

Selected SEC filings

Largest Industrials peers

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