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

Rhea-AI Filing Summary

TransDigm Group Inc. reported an insider stock transaction by its Co-Chief Operating Officer, Patrick J. Murphy. On 01/02/2026, Murphy exercised a stock option to acquire 290 shares of TransDigm common stock at an exercise price of $269.42 per share. On the same day, he sold 290 shares of common stock at a price of $1,329.03 per share.

After these transactions, Murphy beneficially owned 1,055 shares of TransDigm common stock directly and held 1,450 stock options as derivative securities.

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
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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)
01/02/2026

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	01/02/2026		M		290	A	$269.42	1,345	D
Common Stock	01/02/2026		S		290	D	$1,329.03	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	01/02/2026		M			290	09/30/2020	11/10/2026	Common Stock	290	$0	1,450	D

Explanation of Responses:

	/s/Rachel L. Quinlan as attorney in fact for Patrick J. Murphy	01/05/2026
	** 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 (TDG) disclose in this filing?

The filing discloses that Co-Chief Operating Officer Patrick J. Murphy exercised a stock option for 290 shares of TransDigm Group common stock and sold 290 shares of common stock on 01/02/2026.

At what prices did the TransDigm Group (TDG) insider exercise and sell shares?

Patrick J. Murphy exercised a stock option at an exercise price of $269.42 per share and sold common stock at a price of $1,329.03 per share, both on 01/02/2026.

How many TransDigm Group (TDG) shares does the insider own after the transaction?

Following the reported transactions, Patrick J. Murphy beneficially owned 1,055 shares of TransDigm Group common stock directly.

What derivative securities related to TransDigm Group (TDG) does the insider hold?

Patrick J. Murphy held 1,450 stock options following the reported transaction. One option shown in the filing had an exercise price of $269.42 and related to 290 shares of common stock, with an expiration date of 11/10/2026.

What is Patrick J. Murphy’s role at TransDigm Group (TDG)?

Patrick J. Murphy is identified as an officer of TransDigm Group Inc., serving as Co-Chief Operating Officer.

Was the TransDigm Group (TDG) Form 4 filed by one or multiple reporting persons?

The document states that the Form was filed by one reporting person, referring to Patrick J. Murphy.