TransDigm Group Inc. insider Joel Reiss reported additional changes in his ownership of the company’s common stock tied to transactions on July 15, 2026, according to a Form 4 filed July 17. The filing indicates that Reiss had a transaction involving 3,754 shares of TransDigm common stock at $144 per share, a price level consistent with an option exercise or similar insider equity award transaction rather than an open-market purchase at prevailing market prices. The same filing also reports related sales of TransDigm common stock executed at much higher market prices. The sales were reported using weighted-average prices, with shares sold in several price ranges: $1,229.6600 to $1,230.5400 per share, $1,230.8800 to $1,231.4800 per share, and $1,231.9900 to $1,232.8300 per share. The filing states that the reported prices are weighted averages and that Reiss will provide, upon request, the number of shares sold at each exact price within those ranges. The transaction coding reflected in the filing is consistent with an insider equity exercise followed by sales of common stock: the $144-per-share transaction appears to be the acquisition price for shares, while the later sale entries reflect dispositions at market prices above $1,229 per share. The excerpt does not provide a complete post-transaction ownership total or the full share count for each sale line. The filing also notes that this was the second of two Form 4 filings submitted by Reiss for the same transaction because of the 30-line item limit in Table I of Form 4. That means the reported activity should be read together with the first related filing to understand the full size and structure of the transaction. The form was signed on Reiss’s behalf by Rachel L. Quinlan as attorney-in-fact on July 17, 2026.