TransDigm Group (NYSE: TDG) Co-COO reports option exercise and stock sale

Rhea-AI Filing Summary

TransDigm Group Inc. insider transaction: A company officer serving as Co‑Chief Operating Officer reported an option exercise and related stock sale. On 12/01/2025, the insider exercised a stock option to acquire 290 shares of TransDigm common stock at an exercise price of $269.42 per share, then on the same date sold 290 shares of common stock at a price of $1,351.06 per share.

After these transactions, the insider directly beneficially owned 1,055 shares of TransDigm common stock and 1,740 stock options. The filing was made as a Form 4 by one reporting person, reflecting routine insider equity activity.

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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

X

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^*

Murphy Patrick Joseph

(Last) (First) (Middle)

1350 EUCLID AVE

SUITE 1600

(Street)

CLEVELAND OH 44115

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Co-Chief Operating Officer

3. Date of Earliest Transaction (Month/Day/Year)
12/01/2025

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	12/01/2025		M		290	A	$269.42	1,345	D
Common Stock	12/01/2025		S		290	D	$1,351.06	1,055	D

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
Stock Option	$269.42	12/01/2025		M			290	09/30/2020	11/10/2026	Common Stock	290	$0	1,740	D

Explanation of Responses:

	/s/ Rachel L. Quinlan as attorney in fact for Patrick J. Murphy	12/02/2025
	** 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 insider transaction did TransDigm Group Inc. (TDG) report on this Form 4?

An officer reported exercising a stock option for 290 shares of TransDigm common stock at an exercise price of $269.42 per share and selling 290 shares of common stock at a price of $1,351.06 per share, both on 12/01/2025.

How many TransDigm (TDG) shares does the insider own after the reported Form 4 transaction?

Following the reported activity, the insider directly beneficially owned 1,055 shares of TransDigm common stock.

What stock options does the TransDigm (TDG) insider hold after this Form 4 filing?

After the transaction, the insider held 1,740 stock options, including options with an exercise price of $269.42 per share that were initially exercisable on 09/30/2020 and expire on 11/10/2026.

What roles does the reporting person have at TransDigm Group Inc. (TDG)?

The reporting person is identified as an Officer of TransDigm Group Inc., serving as Co‑Chief Operating Officer.

Is this TransDigm (TDG) Form 4 filed by one or multiple reporting persons?

The document indicates that the Form 4 is filed by one reporting person rather than by more than one reporting person.

What type of securities are involved in this TransDigm (TDG) Form 4?

The filing covers TransDigm common stock and a stock option that is exercisable into TransDigm common stock.