Joel Reiss

Co-COO Joel Reiss sold 414 shares at blended $1,231.11 for $509.7K via pre-arranged 10b5-1 plan

Joel Reiss executed 4 separate sales totaling 414 shares for $509,677.61 on 2026-07-15, reducing his holdings from 4,014 to 3,600 shares (-10.3%). The transaction was executed under a pre-arranged 10b5-1 trading plan, meaning the sales were scheduled rather than discretionary. While the current stock price of $1,214.43 sits -25.2% from the 52-week high of $1,623.82 and down -7.8% over the prior 30 days, the transaction timing itself is not a signal of insider judgment—10b5-1 plans operate on fixed schedules independent of market conditions. His prior sales at TDG on 2026-06-15 showed 30-day returns ranging from -3.9% to -3.2%, consistent with broader market weakness in the stock during this period rather than evidence of prescient selling.

Co-COO Joel Reiss sells 3,486 shares of TDG for $4.2M via 29 scheduled 10b5-1 transactions; 4,014 shares remain post-sale.

Joel Reiss, Co-Chief Operating Officer of TransDigm Group, executed 29 separate sales totaling 3,486 shares for $4,239,694.93 on 2026-07-15, reducing his non-derivative holdings from 7,500 shares to 4,014 shares (a 46.5% reduction of pre-transaction holdings). This filing is part of a pre-arranged 10b5-1 trading plan, meaning the sales were scheduled rather than discretionary. Reiss retains 19,700 shares via stock options and a material non-derivative position. The blended average transaction price was $1,216.21, while the current price stands at $1,214.43—a negligible variance. His prior trades at TDG (five sells in June 2026) showed negative 30-day returns ranging from -3.9% to -3.2%, consistent with his cross-ticker track record average 30-day return of -2.4% across 20 prior open-market sells. The stock is currently -25.2% from its 52-week high and down 7.8% over the past 30 days, but TransDigm maintains strong fundamentals with $2.5B in quarterly revenue, $535.0M in net income, and 11.2% annual revenue growth.

Co-COO Joel Reiss sells 3,900 shares ($5.0M) at TransDigm; retains 3,600 post-transaction plus 15,800 stock options

Joel Reiss, Co-Chief Operating Officer, executed 18 separate sales totaling 3,900 shares for $4,979,456.59 at blended average price $1,276.78 on 2026-06-15. This represents a 52.0% reduction of his non-derivative holdings (from 7,500 to 3,600 shares), though he retains 15,800 shares through stock options. The transaction occurred with the stock trading 12.7% higher over 30 days and 12.8% higher over 90 days, within a 52-week range where current price ($1,328.31) sits 18.2% below its high. Across his prior open-market activity at TransDigm (5 recent prior sells on 2026-05-15), the insider's sales have consistently been followed by gains: 30-day returns ranged from +7.7% to +9.0%, though 90-day measurable outcomes are not yet available for those earlier trades. The high transaction volume (18 discrete sales at incrementally rising prices) and the scale of the reduction (half of non-derivative holdings in a single day) warrant monitoring against the company's strong fundamentals: $2.5B quarterly revenue, +11.2% annual growth, $535.0M net income, and $74.3B market cap.

Co-COO Reiss Joel sells 3,900 shares at TDG for $4,500,951.18 via 27 transactions under 10b5-1 plan

Reiss Joel, Co-Chief Operating Officer, executed 27 separate sales totaling 3,900 shares for $4,500,951.18 on 2026-05-15, reducing his holdings from 7,500 shares to 3,600 shares (a -52.0% reduction in his stake). This transaction is part of a pre-arranged 10b5-1 trading plan, meaning it is scheduled rather than discretionary. The blended average price across all transactions was $1,154.09. At the time of filing, the stock was trading at $1182.35, positioned -27.2% from its 52-week high of $1623.82. Historically, across his open-market activity, Reiss Joel's 20 prior sells showed an average 90-day return of -10.1%, and his prior 5 trades at TDG specifically showed 90-day returns ranging from -10.1% to -11.0%.

TransDigm Co-COO Reiss Joel sold 3,900 shares for $4,993,787.08 on 2026-04-15 under 10b5-1 plan.

Reiss Joel, Co-Chief Operating Officer of TransDigm Group, executed 17 separate sales totaling 3,900 shares (3.9K shares) for $4,993,787.08 ($5.0M) at a blended average price of $1,280.46 on 2026-04-15. This transaction reduced his holdings by 52.0%, from 7,500 shares (7.5K shares) pre-transaction to 3,600 shares (3.6K shares) post-transaction, representing a substantial reduction in his stake. The transaction is flagged as part of a pre-arranged 10b5-1 trading plan, meaning it was scheduled in advance rather than a discretionary decision made on the trading date. The multiple price points across the 17 sales (ranging from $1,274.57 to $1,292.66) reflect market execution across the single trading day, a mechanical characteristic of algorithmic or systematic order execution under a prearranged schedule.

TransDigm Co-COO Reiss Joel sold 3,900 shares for $4,850,431.06 via 19b5-1 plan transactions on 2026-03-16

Reiss Joel, Co-Chief Operating Officer of TransDigm Group, executed 19 separate sales totaling 3,900 shares for $4,850,431.06 on 2026-03-16. This transaction is part of a pre-arranged 10b5-1 trading plan, meaning the sales were scheduled and not discretionary. His post-transaction holdings fell to 3,600 shares from 7,500 shares, representing a net change of sold 3,900 shares (-52.0% vs pre-transaction holdings). The sales occurred across a narrow price range (blended average price of $1,243.70), consistent with an automated execution under a pre-arranged plan rather than a response to market conditions.

Co-COO Reiss Joel sold 3.9K TDG shares for $5.0M on 2026-02-17; -52.0% of pre-transaction holdings remain

Reiss Joel executed 23 separate sales totaling 3,900 shares for $5,046,140.57 at blended average price of $1,293.88, reducing his holdings from 7,500 to 3,600 shares (a -52.0% reduction). The transaction occurred as TDG trades -18.8% from its 52-week high of $1,620.83, within a 52-week range of $1,231.75–$1,620.83, and reflects the stock's 30-day decline of -9.3%. His prior five trades at TDG (all on 2026-01-15, each generating negative 30-day returns ranging from -10.4% to -9.8%) establish a recent pattern of selling into weakness at this ticker. While his cross-ticker track record shows 20 prior sells with average 30-day return of -8.0%, the cumulative effect of this significant position reduction alongside depressed price action relative to recent highs warrants attention to whether the company's fundamentals (P/E of 36.66, annual revenue growth of +11.2%) remain supportive of current valuations.

Co-COO Reiss Joel sold 3.9K shares for $5.6M (blended avg $1,429.92) in 18 separate transactions on 2026-01-15, reducing holdings by 52.0%.

Reiss Joel executed a substantial reduction in his TDG position through 18 separate sales totaling 3,900 shares for $5,576,694.62, with a blended average price of $1,429.92. His post-transaction holdings fell to 3,600 shares from 7,500 shares, representing a -52.0% reduction in his stake. The multi-tranche structure and narrow pricing range ($1,420.38–$1,437.56 across transactions) indicate orderly liquidation rather than panic. His prior five sales at TDG (all on 2025-12-15) showed 30-day returns between +9.4% and +10.5%, consistent with his cross-ticker track record average of +10.2% over 20 prior sells, suggesting a historical pattern of selling into modest near-term strength rather than ahead of significant declines. With TDG trading at $1,450.00 (currently +14.9% in the past 30 days and a P/E of 35.63), this sale occurs in an elevated valuation environment, though without knowing the insider's total liquidity or portfolio strategy, the sale alone does not signal forward-looking concern about the business fundamentals.

Co-COO Reiss Joel sells 3,900 shares for $5,033,033.33 via 26 transactions at TDG on 2025-12-15 under 10b5-1 plan

Reiss Joel, Co-Chief Operating Officer of TransDigm Group, executed 26 separate sales totaling 3,900 shares for $5,033,033.33 on 2025-12-15 via a pre-arranged 10b5-1 trading plan. The sales reduced his holdings from 7,500 shares to 3,600 shares, representing a 52.0% reduction. Because this transaction is part of a scheduled 10b5-1 plan rather than discretionary trading, it reflects predetermined execution rather than a timed decision by the executive. The blended average price across the 26 sales was $1,290.52, though individual transaction prices ranged from $1,282.73 to $1,311.25. Investors should note that 10b5-1 plans are pre-established trading schedules and do not constitute a current signal of insider conviction or concern about valuation at the time of execution.

Co-COO Reiss Joel sold 3,900 shares of TransDigm for $5.2M via pre-arranged 10b5-1 plan

Reiss Joel executed 25 separate sales totaling 3,900 shares for $5,225,987.68 on 2025-11-17, reducing his holdings from 7,500 shares to 3,600 shares (-52.0% vs pre-transaction holdings). This activity is part of a pre-arranged 10b5-1 trading plan and therefore represents a scheduled, non-discretionary transaction rather than an opportunistic trade. The distributed sales across multiple price points (ranging from $1,326.21 to $1,353.92, with a blended average of $1,340.00) reflect systematic execution typical of Rule 10b5-1 compliance frameworks. As a scheduled plan with predetermined terms, this sale carries limited signal value regarding executive sentiment about the company's near-term prospects.