SMALL ROBERT J 4

What Happened
Robert J. Small, a director of TransDigm Group Inc. (TDG), made an open-market purchase of 1 share of TransDigm common stock on February 25, 2026 at $1,285.00 per share, for a total reported purchase value of $1,285. This is a purchase (a buy), but the size is de minimis — a single share.

Key Details

• Transaction date: 2026-02-25; Filing date: 2026-02-27 (filed within two business days; timely).
• Transaction type/code: Open-market purchase (P).
• Price and value: 1 share × $1,285.00 = $1,285.00.
• Shares owned after transaction: Not specified in the provided filing details.
• Notable footnote (F1): The purchase was matchable under Section 16(b) with a sale of 1 share by an entity in which Small has a pecuniary interest at $1,335.72. Small paid the issuer the difference between the sale and purchase prices for that one share (difference = $50.72), consistent with short-swing profit rules.
• Other footnotes (F2–F4): Describe shares held by funds, managed accounts, and family trusts where Small may be deemed to have shared voting/dispositive power but disclaims beneficial ownership except for any pecuniary interest.

Context

• A single-share open-market purchase is immaterial economically and provides limited signal about the insider’s view; purchases are generally more informative than sales, but this trade is tiny.
• Footnote F1 indicates the filing also addresses a matched transaction under Section 16(b) and the required payment to the issuer, not an independent investment decision.
• The filing distinguishes between personal holdings and securities held by entities/ trusts where Small may be associated but disclaims beneficial ownership; such disclosures are common for directors involved with investment vehicles.