NYSE:TDG

Transdigm Group Stock Insider Trading

Industrials > Aerospace & Defense

Buy TDG

*Your capital is at risk

$1,295.90

-32.41 (-2.44%)

At Close: Jun 22, 2026

TransDigm Group Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be negative at -95.63. In total, the insiders bought 56.13K and sold 28.06K 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)	-95.63
● Buy	56.13K shares
● Sell	28.06K shares
8% Buy Activity Negligible or No Correlation
Sell Signal High Confidence Dec 09, 2025 Analysis Breakdown: Strongly supported by a very low Insider Power Score of -95.63. Confidence increased due to high data reliability score of 80. Supported by overwhelming sell-side pressure (8% buys).

Historical Insider Trades

Date	Type	Person	Role	Amount
May 18, 2026 Sell	Common Stock S-Sale	Howley W Nicholas Director	Director	110 Value: $128.2K
May 18, 2026 Sell	Common Stock S-Sale	Howley W Nicholas Director	Director	80 Value: $92.8K
May 18, 2026 Sell	Common Stock S-Sale	Howley W Nicholas Director	Director	40 Value: $45.8K
May 18, 2026 Sell	Common Stock S-Sale	Howley W Nicholas Director	Director	60 Value: $68.8K
May 18, 2026 Buy	Stock Option M-Exempt	Howley W Nicholas Director	Director	10 132 Value: $673.5K
May 18, 2026 Buy	Common Stock M-Exempt	Howley W Nicholas Director	Director	10 132 Value: $673.5K
May 18, 2026 Sell	Common Stock S-Sale	Howley W Nicholas Director	Director	80 Value: $92.0K
May 18, 2026 Sell	Common Stock S-Sale	Howley W Nicholas Director	Director	50 Value: $58.1K
May 18, 2026 Sell	Common Stock S-Sale	Howley W Nicholas Director	Director	23 Value: $26.8K
May 18, 2026 Sell	Common Stock S-Sale	Howley W Nicholas Director	Director	60 Value: $70.2K
May 18, 2026 Sell	Common Stock S-Sale	Howley W Nicholas Director	Director	685 Value: $804.3K
May 18, 2026 Sell	Common Stock S-Sale	Howley W Nicholas Director	Director	313 Value: $368.1K
May 18, 2026 Sell	Common Stock S-Sale	Howley W Nicholas Director	Director	140 Value: $164.9K
May 18, 2026 Sell	Common Stock S-Sale	Howley W Nicholas Director	Director	437 Value: $516.1K
May 18, 2026 Sell	Common Stock S-Sale	Howley W Nicholas Director	Director	290 Value: $343.0K
May 18, 2026 Sell	Common Stock S-Sale	Howley W Nicholas Director	Director	1 075 Value: $1.27M
May 18, 2026 Sell	Common Stock S-Sale	Howley W Nicholas Director	Director	272 Value: $322.9K
May 18, 2026 Sell	Common Stock S-Sale	Howley W Nicholas Director	Director	3 801 Value: $4.52M
May 18, 2026 Sell	Common Stock S-Sale	Howley W Nicholas Director	Director	132 Value: $157.0K
May 18, 2026 Sell	Common Stock S-Sale	Howley W Nicholas Director	Director	586 Value: $683.9K
May 18, 2026 Sell	Common Stock S-Sale	Howley W Nicholas Director	Director	463 Value: $540.9K
May 15, 2026 Sell	Common Stock S-Sale	Reiss Joel Co-chief Operating Officer	C-Suite Officer	45 Value: $52.1K
May 15, 2026 Sell	Common Stock S-Sale	Reiss Joel Co-chief Operating Officer	C-Suite Officer	76 Value: $88.5K
May 15, 2026 Sell	Common Stock S-Sale	Reiss Joel Co-chief Operating Officer	C-Suite Officer	110 Value: $127.9K
May 15, 2026 Sell	Common Stock S-Sale	Reiss Joel Co-chief Operating Officer	C-Suite Officer	151 Value: $173.9K

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