MCCULLOUGH GARY E 4

What Happened

• Gary E. McCullough, a director of TransDigm Group Inc. (TDG), received 37 shares on 2026-03-20 as an award/acquisition. The shares were valued at $1,214.66 each for a total fair-market value of approximately $44,942. This issuance was stock received in lieu of the semi-annual director fee under the company's Director Share Plan (routine compensation, not an open-market purchase or sale).

Key Details

• Transaction date and price: 2026-03-20; 37 shares at $1,214.66 per share (total ~$44,942).
• Transaction code: A (award/acquisition).
• Shares owned after transaction: Not disclosed in this Form 4.
• Footnote: Receipt of stock in lieu of payment of semi-annual director fee, based on fair market value under the Director Share Plan (per footnote F1).
• Filing date/timeliness: Form 4 filed 2026-03-23 — within the typical 2-business-day reporting window for insider transactions.

Context

• This was a routine issuance of shares as director compensation, which generally reflects company pay practices rather than a direct buy/sell decision by the insider. Such awards are common for non-employee directors and do not necessarily indicate insider sentiment about the company's stock price.