Michael Graff - 18 Sep 2026 Form 4 Insider Report for TransDigm Group INC (TDG)

Reporting relationship: Director
Issuer ticker: TDG
Reported as of: 18 Sep 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 21 Sep 2026, 16:10:23 UTC
Prior SEC filing: 23 Mar 2026
Source filing: View source filing
Reporting owner signature: /s/ Rachel L. Quinlan as attorney in fact for Michael Graff

Key filing fact

Michael Graff filed Form 4 for TransDigm Group INC (TDG) on 21 Sep 2026.

Key facts

This page summarizes Michael Graff's Form 4 filing for TransDigm Group INC (TDG).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 21 Sep 2026, 16:10.

Change

Previous filing in this sequence was filed on 23 Mar 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001299926 Primary reporting owner

Graff Michael

Relationship: Director
Address: 102 PRINCE STREET, FLOOR 5, NEW YORK
Signature: /s/ Rachel L. Quinlan as attorney in fact for Michael Graff
Signature date: 21 Sep 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

TDG transaction

Common Stock

Award

Transaction value
Shares: +34
Change %: +2%
Price: $1085.00^*
Shares after: 1,717
Date: 18 Sep 2026
Ownership: Direct
Footnotes: F1

TDG holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 5,096
Date: 18 Sep 2026
Ownership: By Trust
Footnotes: F2

TDG holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 7,000
Date: 18 Sep 2026
Ownership: By trusts
Footnotes: F3

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote F1

Receipt of stock in lieu of payment of semi-annual director fee, based on fair market value in accordance with the Director Share Plan.

Footnote F2

The shares reported in Column Five are held by The 2012 Carol Ostrow GST Trust created by the reporting person's spouse for the benefit of their children (the "Spouse Trust").

Footnote F3

These shares are held by certain trusts created for the benefit of the reporting person's children and for which the reporting person is trustee.