[Form 4] TransDigm Group INC Insider Trading Activity

Rhea-AI Filing Summary

TransDigm Group Inc. (TDG)11/21/2025, as shown on this Form 4. The transaction, coded "G" for gift, was at a reported price of $0 per share.

After this transaction, Graff directly owns 1,653 TransDigm common shares. He also reports indirect ownership of 5,096 shares held by The 2012 Carol Ostrow GST Trust created by his spouse for their children, and 7,000 shares held by certain other trusts created for the benefit of their children, for which he serves as trustee.

11/25/2025 - 04:15 PM

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Graff Michael

(Last) (First) (Middle)

102 PRINCE STREET

FLOOR 5

(Street)

NEW YORK NY 10012

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
TransDigm Group INC [ TDG ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
11/21/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	11/21/2025		G		340	D	$0	1,653	D
Common Stock								5,096	I	By trust(1)
Common Stock								7,000	I	By trusts(2)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. These shares are held by The 2012 Carol Ostrow GST Trust created by the reporting person's spouse for the benefit of their children.

2. 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.

	/s/ Rachel L. Quinlan as attorney in fact for Michael Graff	11/25/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did TransDigm (TDG) disclose in this Form 4 filing?

The filing reports that director Michael Graff made a gift of 340 shares of TransDigm Group Inc. common stock on 11/21/2025, coded "G" for gift.

How many TransDigm (TDG) shares does Michael Graff now own directly?

Following the reported gift, Michael Graff directly owns 1,653 shares of TransDigm common stock.

What indirect TransDigm (TDG) share holdings are reported for Michael Graff?

He reports 5,096 shares held by The 2012 Carol Ostrow GST Trust and 7,000 shares held by other trusts created for his children, where he serves as trustee.

What is the transaction code used in this TransDigm (TDG) Form 4?

The transaction is coded "G", which indicates a gift of TransDigm common stock.

Did this Form 4 report any derivative securities for TransDigm (TDG)?

No derivative securities are listed in Table II; only common stock positions are reported in this excerpt.

Who signed the TransDigm (TDG) Form 4 for Michael Graff?

The Form 4 is signed by Rachel L. Quinlan as attorney-in-fact for Michael Graff, dated 11/25/2025.