NYSE:TDG

Transdigm Group Stock Insider Trading

Industrials > Aerospace & Defense

Buy TDG

*Your capital is at risk

$1,254.38

+4.47 (+0.358%)

At Close: Jul 31, 2026

TransDigm Group Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be negative at -94.37. In total, the insiders bought 80.29K and sold 28.24K TDG shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.

Insider Power (Last 100 transactions)	-94.37
● Buy	80.29K shares
● Sell	28.24K shares
11% Buy Activity Negligible or No Correlation
Sell Signal High Confidence Jul 20, 2026 Analysis Breakdown: Strongly supported by a very low Insider Power Score of -94.37. Confidence increased due to high data reliability score of 80. Supported by overwhelming sell-side pressure (11% buys).

Historical Insider Trades

Date	Type	Person	Role	Amount
Jul 20, 2026 Sell	Common Stock S-Sale	Howley W Nicholas Director	Director	570 Value: $689.9K
Jul 20, 2026 Sell	Common Stock S-Sale	Howley W Nicholas Director	Director	1 720 Value: $2.09M
Jul 20, 2026 Sell	Common Stock S-Sale	Howley W Nicholas Director	Director	260 Value: $316.1K
Jul 20, 2026 Sell	Common Stock S-Sale	Howley W Nicholas Director	Director	1 463 Value: $1.78M
Jul 20, 2026 Sell	Common Stock S-Sale	Howley W Nicholas Director	Director	465 Value: $568.4K
Jul 20, 2026 Buy	Stock Option M-Exempt	Howley W Nicholas Director	Director	10 132 Value: $673.5K
Jul 20, 2026 Sell	Common Stock S-Sale	Howley W Nicholas Director	Director	440 Value: $538.6K
Jul 20, 2026 Sell	Common Stock S-Sale	Howley W Nicholas Director	Director	603 Value: $733.9K
Jul 20, 2026 Sell	Common Stock S-Sale	Howley W Nicholas Director	Director	1 561 Value: $1.90M
Jul 20, 2026 Sell	Common Stock S-Sale	Howley W Nicholas Director	Director	1 437 Value: $1.74M
Jul 20, 2026 Sell	Common Stock S-Sale	Howley W Nicholas Director	Director	240 Value: $290.7K
Jul 20, 2026 Buy	Common Stock M-Exempt	Howley W Nicholas Director	Director	10 132 Value: $673.5K
Jul 20, 2026 Sell	Common Stock S-Sale	Howley W Nicholas Director	Director	130 Value: $158.7K
Jul 20, 2026 Sell	Common Stock S-Sale	Howley W Nicholas Director	Director	1 243 Value: $1.52M
Jul 15, 2026 Buy	Stock Option M-Exempt	Reiss Joel Co-chief Operating Officer	C-Suite Officer	3 900 Value: $1.11M
Jul 15, 2026 Sell	Common Stock S-Sale	Reiss Joel Co-chief Operating Officer	C-Suite Officer	30 Value: $36.2K
Jul 15, 2026 Sell	Common Stock S-Sale	Reiss Joel Co-chief Operating Officer	C-Suite Officer	40 Value: $49.1K
Jul 15, 2026 Sell	Common Stock S-Sale	Reiss Joel Co-chief Operating Officer	C-Suite Officer	90 Value: $110.6K
Jul 15, 2026 Sell	Common Stock S-Sale	Reiss Joel Co-chief Operating Officer	C-Suite Officer	156 Value: $187.2K
Jul 15, 2026 Sell	Common Stock S-Sale	Reiss Joel Co-chief Operating Officer	C-Suite Officer	116 Value: $139.5K
Jul 15, 2026 Sell	Common Stock S-Sale	Reiss Joel Co-chief Operating Officer	C-Suite Officer	110 Value: $133.4K
Jul 15, 2026 Sell	Common Stock S-Sale	Reiss Joel Co-chief Operating Officer	C-Suite Officer	90 Value: $109.0K
Jul 15, 2026 Buy	Stock Option M-Exempt	Reiss Joel Co-chief Operating Officer	C-Suite Officer	3 900 Value: $1.11M
Jul 15, 2026 Sell	Common Stock S-Sale	Reiss Joel Co-chief Operating Officer	C-Suite Officer	170 Value: $206.3K
Jul 15, 2026 Sell	Common Stock S-Sale	Reiss Joel Co-chief Operating Officer	C-Suite Officer	90 Value: $109.7K

About Insider Power

Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.

It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%^* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.

While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.

* October 6th, 2025 - Tested on 5562 stocks

ABOUT TRANSDIGM GROUP INCORPORATED

TransDigm Group Incorporated designs, produces, and supplies aircraft components in the United States and internationally. Its Power & Control segment offers mechanical/electro-mechanical actuators and controls, ignition systems and engine technology, specialized pumps and valves, power conditioning devices, specialized AC/DC electric motors and generators, batteries and chargers, databus and power controls, sensor products, switches and relay pa...

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