Reiss Joel

Reiss Joel, co-chief operating officer at TransDigm Group (TDG), has filed 284 Form 4 transactions, every one of them a sale. The total sell value is $67.35 million, with zero open-market purchases and zero acquisitions of any kind. The recent activity is concentrated on a single day, September 15, 2026, when Joel filed 24 sell transactions and one option exercise. The exercise, coded M, is mechanical and worth $1.11 million, while the sales range from $5,526 to $419,025, with the largest individual sale at $419,025 and a cluster of seven-figure combined volume across the day. The pattern is unambiguous: Joel is a seller, and a heavy one. His recent 24 sales on TDG total roughly $3.4 million, and the absence of any P-coded open-market purchases in the entire record means he has not added a single share with his own money. The sales are all coded S, indicating open-market dispositions, and they are spread across many small to mid-sized lots, which is typical of a scheduled sell-down rather than a single block trade. The option exercise adds shares, but those are immediately offset by the sales, so the net effect is a reduction in his direct holdings. There is no buying bias anywhere in the data. Joel has never used a P code, and his only non-sale transactions are the mechanical M exercise and, presumably, the automatic F and G codes that appear in the broader record. The dollar values are consistent with a senior executive monetizing equity compensation, not with any signal about TransDigm's prospects. The last date on file, September 15, 2026, shows 24 sales and one exercise, all in TDG, and the total sell value of $67.35 million is the entire story.