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TDG - Transdigm Group Inc

Insider Sale by Reiss Joel (Co-COO)

1 Month
After Trade
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Trade Summary

2 days ago, Reiss Joel, serving as Co-COO at Transdigm Group Inc (TDG), sold 3,900 shares at $1,280.46 per share, for a total transaction value of $4,993,787.00. Following this transaction, Reiss Joel now holds 3,600 shares of TDG.

This sale represents a 52.00% decrease in Reiss Joel's stake in the company. This is considered a high-conviction trade given the significant change in ownership.

The trade was executed on Wednesday, April 15, 2026 and publicly disclosed via SEC Form 4 filing on Thursday, April 16, 2026, 1 day after the trade was made.

Transdigm Group Inc operates in the INDUSTRIALS sector, specifically within the AEROSPACE & DEFENSE industry. Insider selling activity in this sector can provide valuable signals about industry trends and company-specific developments.

Reiss Joel

Co-COO

Joel Reiss is a Co-Chief Operating Officer at TransDigm Group Inc. (TDG), appointed to this role in May 2023.[[2]](https://www.transdigm.com/transdigm-overview/leadership/) Prior to this, he served as Executive Vice President at TransDigm from 2015 to 2023, President of Hartwell Corporation from 2012 to 2015, President of Skurka Aerospace from 2010 to 2012, and Director of Operations at Adams Rite Aerospace.[[2]](https://www.transdigm.com/transdigm-overview/leadership/) Reiss, aged 55 and based in Yorba Linda, CA, holds a BS in Industrial Engineering and an MS in Industrial Engineering.[[5]](https://rocketreach.co/joel-reiss-email_6638164)[[6]](https://www.morningstar.com/stocks/xnys/tdg/executive) He has engaged in recent insider trading activities, including selling shares worth $3.8 million on October 20, 2025, after exercising stock options, leaving him with direct ownership of 3,600 shares,[[1]](https://www.investing.com/news/insider-trading-news/reiss-joel-cochief-operating-officer-sells-38m-in-transdigm-tdg-93CH-4300283) and additional transactions on September 22, 2025.[[3]](https://www.ainvest.com/news/transdigm-group-joel-reiss-buys-3000-shares-sells-4000-1279-15-share-2509/)

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Trade Price

$1,280.46

Quantity

3,900

Total Value

$4,993,787.00

Shares Owned

3,600

Trade Date

Wednesday, April 15, 2026

2 days ago

SEC Filing Date

Thursday, April 16, 2026

Filed 1 day after trade

INDUSTRIALSAEROSPACE & DEFENSE

About Transdigm Group Inc

Company Overview

No company information available
View news mentioning TDG

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