TDG TransDigm Group INC Insider Trading

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.

Director W Nicholas Howley sells 10,132 shares at TDG for $13,369,720.12 across 22 transactions on 2026-06-18

Director W. Nicholas Howley executed 22 separate sales totaling 10,132 shares for $13,369,720.12 on 2026-06-18, reducing his non-derivative holdings by 32.0% from 31,679 shares to 21,547 shares. The blended average transaction price was $1,319.55, while the current price stands at $1,295.90, and the stock is currently -20.2% from its 52-week high of $1,623.82. The filing shows derivative holdings of 21,964 shares remain in the W. Nicholas Howley Family Trust, meaning the insider retains a substantial option position alongside his reduced equity stake. His prior sales at TDG showed 30-day returns ranging from +11.3% to +13.5%, but the timing pattern at the 90-day mark across his prior transactions at this ticker remains not yet measurable.

Director W. Nicholas Howley sold 10,132 shares ($13.4M) in 22 separate transactions on 2026-06-18 at prices $1305.19–$1334.72.

On 2026-06-18, Director W. Nicholas Howley executed 22 separate sales totaling 10,132 shares for $13,369,720.12 (blended average price $1,319.55), reducing his non-derivative holdings by 32.0% to 21,547 shares post-transaction. The multi-tranche execution across a narrow price band ($1305.19–$1334.72) is consistent with a systematic or pre-planned liquidation program rather than a reactive market opportunity; the stock currently trades at $1295.90, down 20.2% from its 52-week high of $1623.82. While his cross-ticker track record shows positive 30-day outcomes on average (12.7%), his five prior sales at TDG in early May 2026 (all within a single day, 2026-05-18) ranged from +11.3% to +13.5% in the subsequent 30 days—suggesting those May sales were not early signals of a broad downturn. The June sale occurs while the stock is 6.8% higher over the prior 30 days and 11.4% higher over the prior 90 days. Notably, the insider retains 21,964 shares through derivative holdings (stock options in the W. Nicholas Howley Family Trust), indicating a meaningful residual position despite the substantial non-derivative reduction.

Director W Nicholas Howley sold 10,132 shares at TDG for $13,369,720.12 in 22 transactions on 2026-06-18

W Nicholas Howley, a Director of TransDigm Group, executed 22 separate sales totaling 10,132 shares for $13,369,720.12 on 2026-06-18, reducing his non-derivative holdings from 31,679 to 21,547 shares. The blended average price of $1,319.55 sits near the 52-week high of $1,623.82 and well above the current price of $1,295.90, positioned at -20.2% from the 52-week high. Across his prior TDG trades at this ticker, five recent sales on 2026-05-18 each showed positive 30-day returns (ranging +11.3% to +13.5%), suggesting his prior sales have not preceded stock declines. However, the insider retains derivative holdings of 21,964 shares via the W. Nicholas Howley Family Trust, meaning the non-derivative sale represents a partial reduction rather than a full position exit.

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.

TDG director Howley sells 10,132 shares for $11,964,054.47 on 2026-05-18 via scheduled 10b5-1 plan

Howley W Nicholas, a director at TransDigm Group, executed 25 separate sales totaling 10,132 shares for $11,964,054.47 on 2026-05-18, reducing his holdings by 32.0% from 31,679 to 21,547 shares. The transaction was conducted under a pre-arranged 10b5-1 trading plan, meaning it was scheduled rather than discretionary. His prior sales at TDG (5 trades on 2026-04-20) have shown negative 30-day and 90-day returns ranging from -8.9% to -9.6%, while his cross-ticker track record shows average 90-day returns of -7.5% following sells. With the stock currently trading at $1,182.35 against a 52-week high of $1,623.82 (-27.2%), investors should monitor whether this scheduled reduction reflects prior planning windows or broader positioning, though the 10b5-1 structure limits inference about current conviction.

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%.

Director W Nicholas Howley sells 10,132 shares ($12.8M) at TransDigm via pre-arranged 10b5-1 plan on 2026-04-20

Director W Nicholas Howley executed 11 separate sales totaling 10,132 shares for $12,817,571.62 on 2026-04-20 at a blended average price of $1,265.06, reducing his holdings from 31,679 to 21,547 shares (-32.0% vs pre-transaction holdings). This transaction is part of a pre-arranged 10b5-1 trading plan and therefore scheduled rather than discretionary. The multi-tranche execution across a range of prices ($1,260.34 to $1,271.63) reflects systematic liquidation under the plan's predetermined parameters, not tactical decision-making responsive to market conditions or company developments.

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.