How many subsidiaries does TransDigm Group INC file with the SEC?

208, listed in its most recent exhibit 21. They are incorporated across 33 jurisdictions, led by Delaware, Germany, California. That exhibit is filed with the company's annual report and is the company's own list, not an estimate.

Is TransDigm Group INC financially healthy?

TransDigm Group INC scores 6 out of 9 on the Piotroski F-score. Its Altman Z-score puts it in the distress zone. Every test and the numbers behind it are shown above, so the arithmetic is checkable rather than something you have to take on trust.

Who are the largest institutional holders of TransDigm Group INC?

Among the managers tracked here, the biggest positions as of the 2026-Q2 13F filings are BlackRock, Inc. (adding), Capital World Investors (trimming), STATE STREET CORP (adding). Direction is the change in share count against that manager's own previous filing; managers with no prior filing are left out rather than counted as new buyers.

TransDigm Group INC (TDG)

NYSE · Common Stock · Aircraft Parts & Auxiliary Equipment, NEC

One email a week from me: what it filed, which 13F holders added or cut, where its scores stand. Free.

TransDigm Group Incorporated is a global designer, producer and supplier of commercial and military aerospace components

Corporate structure

208 entities across 33 jurisdictions. Read directly from the company’s own 10-K EX-21 filed 2025-11-12 — see the exhibit.

Which other public companies file entities in the same places:

Delaware87 United Kingdom37 New York13 Germany9 California7 Canada6 Mexico6 France5 China4 Sri Lanka3 Singapore3 Washington3

Subsidiaries of TransDigm Group INC as disclosed in its SEC filing
Entity	Jurisdiction	Note
Genesee Properties, LLC	Delaware
Genesee Street, LLC	Delaware
Waterview Pkwy LLC	Delaware
Acme Aerospace, Inc.	Delaware
Adams Rite Aerospace GmbH	Germany
Adams Rite Aerospace, Inc.	California
AeroControlex Group, Inc.	Delaware
Aerosonic LLC	Delaware
Airborne Acquisition, Inc.	Delaware
Airborne Global, Inc.	Delaware
Airborne Holdings, Inc.	Delaware

Financial health

Two standard screens, computed from the XBRL in FY2025 against FY2024. Every test shows the numbers behind it — a score with its inputs hidden is a number you cannot check.

Piotroski F-score

6 / 9

PASSReturn on assets positiveROA 9.1%
PASSOperating cash flow positiveOCF 2.0B
PASSReturn on assets improving6.7% → 9.1%
FAILCash flow exceeds earningsOCF 2.0B vs NI 2.1B
FAILLong-term debt ratio falling95.3% → 127.9% of assets
PASSCurrent ratio improving1.58 → 3.21
FAILNo share dilution58M → 58M shares
PASSGross margin improving58.8% → 60.1%
PASSAsset turnover improving0.31× → 0.39×

Altman Z-score

1.73distress

Bankruptcy-risk screen combining working capital, retained earnings, operating income, market value against liabilities, and asset turnover. Above 2.99 is the safe zone; below 1.81 is distress.

Six-year record

Year	Revenue	Net income	Free cash flow	Gross margin	Shares
FY2020	$5.1B	$699.0M	$1.1B	51.9%	57,300,000
FY2021	$4.8B	$680.0M	$808.0M	52.4%	58,400,000
FY2022	$5.4B	$866.0M	$829.0M	57.1%	58,200,000
FY2023	$6.6B	$1.3B	$1.2B	58.3%	57,200,000
FY2024	$7.9B	$1.7B	$1.9B	58.8%	57,800,000
FY2025

Ownership flow

18 institutions tracked — 8 added, 9 reduced, 1 opened a new position. Index money added 322,684 shares while active managers cut 723,445.

Institutional holders of TransDigm Group INC and their share-count change
Manager	Kind	Shares	Change	Value
Capital World Investors	Active fund	4,274,109	−392,382	$5.7B
BlackRock, Inc.	Index	4,871,505	+270,253	$6.5B
FMR LLC	Active fund	1,091,534	−267,005	$1.5B
JPMORGAN CHASE & CO	Active fund	835,113

Capital returned

What the company actually paid out and bought back, as reported — the record behind any yield figure.

Shares repurchased

2025Q4: $106.0M
2024Q4: $316.0M
2023Q4: $0
2016Q4: $0
2015Q4: $70.8M
2014Q4: $0

Identity

CIK: 0001260221
FIGI: BBG000L8CBX4
SIC: 3728 · Aircraft Parts & Auxiliary Equipment, NEC
Incorporated: DE
Headquarters: CLEVELAND, OH
Founded: 1993-00-00

Ownership

Institutional: 97.5%
Institutions: 1,522
Insiders: 0.4%

Ownership percentages are a vendor aggregate, not a filing — unlike everything else on this page.

Other aircraft parts & auxiliary equipment, nec companies

TransDigm Group INC files under SIC 3728 — all 3 aircraft parts & auxiliary equipment, nec companies compared on assets and F-score.

Loar Holdings Inc.LOAR ASTRONICS CORPATRO

Questions about TransDigm Group INC

How many subsidiaries does TransDigm Group INC file with the SEC?: 208, listed in its most recent exhibit 21. They are incorporated across 33 jurisdictions, led by Delaware, Germany, California. That exhibit is filed with the company's annual report and is the company's own list, not an estimate.
Is TransDigm Group INC financially healthy?: TransDigm Group INC scores 6 out of 9 on the Piotroski F-score. Its Altman Z-score puts it in the distress zone. Every test and the numbers behind it are shown above, so the arithmetic is checkable rather than something you have to take on trust.
Who are the largest institutional holders of TransDigm Group INC?: Among the managers tracked here, the biggest positions as of the 2026-Q2 13F filings are BlackRock, Inc. (adding), Capital World Investors (trimming), STATE STREET CORP (adding). Direction is the change in share count against that manager's own previous filing; managers with no prior filing are left out rather than counted as new buyers.

This page is one panel of the terminal

The structure map above is the Corporate Blueprint, and in the desktop it is interactive — click any entity to re-centre the map on it and walk the ownership chain. It sits alongside the screener, the scorecard and the filings lab on one desk, on your machine.

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Sourced from SEC EDGAR primary filings. Figures are as reported by the company and are not investment advice. Scores are standard published screens computed from those filings; every input is shown above so you can check the arithmetic.