InsidersTradesSigma
Track the TransDigm Group INC share price and the full directors' dealings record of the company, a publicly traded company based in United States. Shares are listed on the US market, under the supervision of SEC (Form 4). Operating in the Defense & Aerospace sector, TransDigm Group INC has recorded 421 insider filings. Market capitalisation: €69.5bn. The latest transaction was disclosed on 18 August 2026 (Levée d'options). Among the most active insiders: Reiss Joel. All data is free.
TransDigm Group INC has reported a total of 83 insider trading declarations in the past 90 days. The total amount of shares sold is approximately 64,909,950 euros, with no shares bought. The top insider by total amount sold is Howley W Nicholas, a Director, with sales totaling approximately 57,757,407.83 euros from 29 declarations. Another significant insider is Reiss Joel, Co-Chief Operating Officer, who has sold approximately 10,253,663.50 euros worth of shares across 54 declarations. Key recent transactions include a proposed sale by Howley W Nicholas on June 18, 2026, amounting to approximately 35,003,664.68 euros, and several sales on July 21, 2026, totaling smaller amounts. Reiss Joel also reported a transaction on July 17, 2026, involving options.
Auto-generated summary, refreshed daily.Updated today
421
Insider Decl.
n/a
Thresholds
€8m
13 ops.
Buy Volume
€205m
126 ops.
Sell Volume
Analyst consensus: bullish or bearish?
Analysts rate TransDigm Group INC Buy (bullish), based on 19 analysts. Average price target: US$1,522.79.
28Σ signal
This score ranks the purchase within its own market. No market currently meets the historical allocation criteria, so signals remain watch-only. Not investment advice.
Fundamental score
Ranked 15,302 of 29,055 companies
50.5
score / 100
Value43
Quality59
FCF yld2.8%
Earn yld2.9%
EV/EBITDA20.8x
ROE·
Gross mgn60%
Net mgn21%
Debt/EBITDA6.6x
Pillars2/3
Transparent value + quality ranking, distinct from the insider signal.
Sigma AI Analysis
Fundamental view, insider signal, bull and bear case, synthesis.
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Last declaration on 18 August 2026
Declarations421 total
3,900 shares@ US$284.97Common StockSEC:0001656109-26-000007:0
140 shares@ US$1,232.816Common StockSEC:0001656109-26-000007:1
260 shares@ US$1,233.8684Common StockSEC:0001656109-26-000007:2
327 shares@ US$1,234.9279Common StockSEC:0001656109-26-000007:3
373 shares@ US$1,235.8581Common StockSEC:0001656109-26-000007:4
671 shares@ US$1,236.799Common StockSEC:0001656109-26-000007:5
499 shares@ US$1,237.868Common StockSEC:0001656109-26-000007:6
340 shares@ US$1,238.8357Common StockSEC:0001656109-26-000007:7
400 shares@ US$1,239.9924Common StockSEC:0001656109-26-000007:8
120 shares@ US$1,240.778Common StockSEC:0001656109-26-000007:9
112 shares@ US$1,242.2834Common StockSEC:0001656109-26-000007:10
138 shares@ US$1,243.026Common StockSEC:0001656109-26-000007:11
100 shares@ US$1,243.91Common StockSEC:0001656109-26-000007:12
145 shares@ US$1,245.2852Common StockSEC:0001656109-26-000007:13
37 shares@ US$1,245.897Common StockSEC:0001656109-26-000007:14
48 shares@ US$1,247.3063Common StockSEC:0001656109-26-000007:15
60 shares@ US$1,248.2583Common StockSEC:0001656109-26-000007:16
20 shares@ US$1,250.823Common StockSEC:0001656109-26-000007:17
80 shares@ US$1,252.1149Common StockSEC:0001656109-26-000007:18
30 shares@ US$1,253.082Common StockSEC:0001656109-26-000007:19
1,437 shares@ US$1,213.87970.0026% mcap1.0% of flowCommon StockSEC:0001352573-26-000012:4
260 shares@ US$1,215.61540.0005% mcap0.2% of flowCommon StockSEC:0001352573-26-000012:6
130 shares@ US$1,220.56620.0002% mcap0.1% of flowCommon StockSEC:0001352573-26-000012:10
465 shares@ US$1,222.31820.0008% mcap0.3% of flowCommon StockSEC:0001352573-26-000012:11
10,132 shares@ US$66.470.0010% mcap0.4% of flowCommon StockSEC:0001352573-26-000012:0
25 of 421 declarations
About TransDigm Group INC
TransDigm Group Inc. (ticker: TDG) is a leading aerospace and defense components company listed on the NYSE in the United States. Headquartered in Cleveland, Ohio, the group designs, manufactures, and supplies highly engineered component parts, systems, and subsystems used on commercial and military aircraft worldwide. Its business model is built around proprietary products with significant aftermarket exposure, a combination that typically supports attractive pricing power, recurring service demand, and resilient profitability through the cycle. TransDigm was founded in 1993 and has expanded primarily through a disciplined acquisition strategy; the company says it has acquired more than 100 businesses since formation. The company’s product portfolio is broad and mission-critical. It includes passenger seatbelts and airbags, cockpit security systems, parachutes, actuators, controls, pumps, valves, switches, relay panels, cockpit displays, fuel and proximity sensing systems, structural health monitoring solutions, and many other aircraft components. Management emphasizes that TransDigm products are found on nearly every commercial and military aircraft in service today, which underscores the company’s deep penetration across both civil aviation and defense platforms. TransDigm operates through independently managed business units, allowing local autonomy while maintaining a common focus on value-based pricing, productivity gains, and profitable new business development. From a competitive standpoint, TransDigm stands out because it focuses on proprietary, often hard-to-substitute parts that can remain installed and supported for many years. That creates a favorable mix of OEM and aftermarket revenue, with aftermarket typically offering higher margin potential and more stable demand. The company also positions itself as a value-creation platform with a private-equity-like mindset, but with the liquidity and governance framework of a public company. Recent activity has remained strategically important. In fiscal 2025, TransDigm completed the acquisition of Servotronics, a designer and manufacturer of servo controls and advanced technology components for aerospace and defense applications. After fiscal year-end, the company completed the acquisition of Simmonds Precision Products from RTX, adding fuel and proximity sensing as well as structural health monitoring capabilities. TransDigm also repurchased shares and issued $5.0 billion of new debt in August 2025, highlighting its continued willingness to use capital markets to support acquisitions and shareholder returns. For investors, TDG remains a high-quality U.S. industrial and defense exposure with global reach, strong aftermarket characteristics, and a proven acquisition-led growth model.
