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
Jun 15, 2026 Sell	Common Stock S-Sale	Reiss Joel Co-chief Operating Officer	C-Suite Officer	90 Value: $115.4K
Jun 15, 2026 Sell	Common Stock S-Sale	Reiss Joel Co-chief Operating Officer	C-Suite Officer	150 Value: $192.3K
Jun 15, 2026 Sell	Common Stock S-Sale	Reiss Joel Co-chief Operating Officer	C-Suite Officer	152 Value: $194.6K
Jun 15, 2026 Sell	Common Stock S-Sale	Reiss Joel Co-chief Operating Officer	C-Suite Officer	316 Value: $404.0K
Jun 15, 2026 Sell	Common Stock S-Sale	Reiss Joel Co-chief Operating Officer	C-Suite Officer	32 Value: $40.6K
Jun 15, 2026 Buy	Stock Option M-Exempt	Reiss Joel Co-chief Operating Officer	C-Suite Officer	3 900 Value: $1.11M
Jun 15, 2026 Sell	Common Stock S-Sale	Reiss Joel Co-chief Operating Officer	C-Suite Officer	428 Value: $546.3K
Jun 15, 2026 Sell	Common Stock S-Sale	Reiss Joel Co-chief Operating Officer	C-Suite Officer	300 Value: $382.0K
Jun 15, 2026 Sell	Common Stock S-Sale	Reiss Joel Co-chief Operating Officer	C-Suite Officer	146 Value: $185.6K
Jun 15, 2026 Sell	Common Stock S-Sale	Reiss Joel Co-chief Operating Officer	C-Suite Officer	174 Value: $221.4K
Jun 15, 2026 Sell	Common Stock S-Sale	Reiss Joel Co-chief Operating Officer	C-Suite Officer	600 Value: $764.6K
Jun 15, 2026 Sell	Common Stock S-Sale	Reiss Joel Co-chief Operating Officer	C-Suite Officer	494 Value: $631.1K
Jun 15, 2026 Sell	Common Stock S-Sale	Reiss Joel Co-chief Operating Officer	C-Suite Officer	502 Value: $640.2K
Jun 15, 2026 Buy	Common Stock M-Exempt	Reiss Joel Co-chief Operating Officer	C-Suite Officer	3 900 Value: $1.11M
Jun 15, 2026 Sell	Common Stock S-Sale	Reiss Joel Co-chief Operating Officer	C-Suite Officer	158 Value: $202.2K
Jun 15, 2026 Sell	Common Stock S-Sale	Reiss Joel Co-chief Operating Officer	C-Suite Officer	74 Value: $95.1K
Jun 15, 2026 Sell	Common Stock S-Sale	Reiss Joel Co-chief Operating Officer	C-Suite Officer	60 Value: $77.2K
Jun 15, 2026 Sell	Common Stock S-Sale	Reiss Joel Co-chief Operating Officer	C-Suite Officer	30 Value: $38.6K
Jun 15, 2026 Sell	Common Stock S-Sale	Reiss Joel Co-chief Operating Officer	C-Suite Officer	58 Value: $73.7K
May 18, 2026 Sell	Common Stock S-Sale	Howley W Nicholas Director	Director	448 Value: $531.3K
May 18, 2026 Sell	Common Stock S-Sale	Howley W Nicholas Director	Director	87 Value: $103.0K
May 18, 2026 Sell	Common Stock S-Sale	Howley W Nicholas Director	Director	250 Value: $294.9K
May 18, 2026 Sell	Common Stock S-Sale	Howley W Nicholas Director	Director	40 Value: $47.1K
May 18, 2026 Sell	Common Stock S-Sale	Howley W Nicholas Director	Director	220 Value: $257.9K
May 18, 2026 Sell	Common Stock S-Sale	Howley W Nicholas Director	Director	390 Value: $456.0K

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