TransDigm (TDG) COO Joel Reiss Exercises Options, Sells Shares

What Happened

• Joel Reiss, Chief Operating Officer of TransDigm Group (TDG), exercised 3,900 option-derived shares on 2026-09-15 (code M) at a strike of $284.97 per share (cost $1,111,383). He then sold all 3,900 shares in open-market transactions (code S) across multiple trades that produced aggregate gross proceeds of approximately $4,268,869. Net cash realized before taxes and fees is roughly $3.16M (proceeds minus exercise cost).

Key Details

• Transaction date: 2026-09-15 (Form 4 filed 2026-09-16 — appears timely).
• Exercise: 3,900 shares at $284.97 (total cash paid ~$1,111,383).
• Sales: 3,900 shares sold in multiple blocks at varying prices; reported average prices per block range roughly from $1,082.35 up to $1,119.02. Total gross proceeds ≈ $4,268,869.
• Shares owned after transaction: Not specified in the provided extract of the filing.
• Footnotes: Several footnotes note that reported sale prices are weighted averages for grouped trades and provide per-block price ranges (see filing for exact breakdowns, F1–F25).
• Transaction codes explained: M = exercise/conversion of derivative; S = open-market sale.
• No 10b5‑1 plan, tax‑withholding, or late‑filing indication is shown in the provided details.

Context

• This is effectively a cashless exercise/sell: Reiss exercised options and immediately sold the resulting shares (exercise and sales equal 3,900 shares). Such transactions commonly reflect option-exercise liquidity rather than a directional bet on the stock; they do not, by themselves, indicate management sentiment. For interpretation, note that purchases by insiders generally carry more direct informational weight than routine option exercises followed by sales.