Reiss Joel 4/A

What Happened
Joel Reiss, Chief Operating Officer of TransDigm Group Inc. (TDG), reported an exercise/conversion of a derivative (Form 4 code M) resulting in the disposition of 3,900 shares on 2026-07-15. The filing shows a reported per-share price of $0.00 and $0 total proceeds for this transaction. The current filing is an amendment correcting the original Form 4's classification of the transaction from an acquisition to a disposition.

Key Details

• Transaction date: 2026-07-15 (original Form 4 filed 2026-07-16; amended Form 4/A filed 2026-07-21).
• Transaction type/code: Exercise or conversion of derivative (M) with disposal reported.
• Shares disposed: 3,900; reported price: $0.00; reported proceeds: $0.
• Shares owned after transaction: Not specified in the provided amendment.
• Footnote: F1 — This Form 4/A corrects the original 07/16/2026 filing, which mistakenly reported the item as an acquisition ('A') instead of a disposition ('D'); no other changes.
• Timeliness: The original Form 4 was filed on 07/16 (timely after the 07/15 transaction); this document is an amendment filed 07/21 to correct the transaction type.

Context

• Form 4 code M indicates an exercise or conversion of a derivative instrument (e.g., option exercise or conversion of vested units). The $0.00 per-share and $0 total reported mean no cash consideration was recorded on the Form 4; the filing does not state why (e.g., conversion, nominal-price award, or an internal transfer).
• The filing reports a disposition (sale or transfer) of the resulting shares; dispositions can be routine (tax withholding, internal transfers, or sales) and do not by themselves indicate the insider’s long-term view.