TransDigm director receives 113-share stock award

Howley W Nicholas reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Howley W Nicholas reported acquisition or exercise transactions in this Form 4 filing.

TransDigm Group director W. Nicholas Howley received 113 shares of Common Stock as a grant on March 20, 2026. The shares were issued at a fair market value of $1,214.66 per share, in lieu of a semi-annual director fee under the Director Share Plan.

After this award, Howley holds 113 shares directly. He also has indirect beneficial holdings of 8,262 shares through The Howley Family Foundation and 21,547.513 shares through the W. Nicholas Howley Family Trust u/a/d 4/23/99, as reported in this filing.

Insider Trade Summary

Grant/Award: 113 shares

Grant/Award 3 txns

Insider Howley W Nicholas

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	113	$1,214.66	$137K
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 113 shares (Direct); Common Stock — 8,262 shares (Indirect, The Howley Family Foundation); Common Stock — 21,547.513 shares (Indirect, W. Nicholas Howley Family Trust u/a/d 4/23/99)

Footnotes (1)

1. 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.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did TDG director W. Nicholas Howley report?

Director W. Nicholas Howley reported receiving 113 TransDigm Group Common Stock shares as a grant. The award represents stock received instead of a semi-annual director fee, issued under the company’s Director Share Plan based on the shares’ fair market value on the grant date.

At what price was the TransDigm (TDG) director share grant valued?

The 113-share grant to director W. Nicholas Howley was valued at $1,214.66 per share. This value reflects the fair market price used to convert his semi-annual director fee into stock under TransDigm’s Director Share Plan on the March 20, 2026 grant date.

How many TransDigm (TDG) shares does W. Nicholas Howley hold directly after this filing?

Following the reported grant, W. Nicholas Howley directly holds 113 shares of TransDigm Common Stock. These shares result entirely from the March 20, 2026 stock award received in lieu of his semi-annual director fee under the company’s Director Share Plan.

What indirect TransDigm (TDG) holdings are reported for W. Nicholas Howley?

The filing shows 8,262 shares held indirectly through The Howley Family Foundation and 21,547.513 shares held indirectly through the W. Nicholas Howley Family Trust u/a/d 4/23/99. These positions are reported as indirect beneficial ownership of TransDigm Common Stock.

Was the TDG share transaction by W. Nicholas Howley a market purchase or a grant?

The transaction was a grant, not a market purchase. Howley received 113 TransDigm shares as stock in lieu of cash for his semi-annual director fee, determined at fair market value under the company’s Director Share Plan.

What does the footnote in the TDG Form 4 for W. Nicholas Howley explain?

The footnote explains that the shares were received as stock instead of cash for a semi-annual director fee. The grant’s value was based on the shares’ fair market value, consistent with the terms of TransDigm’s Director Share Plan for directors.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 03/23/2026 - 04:09 PM EDT Learn about SEC filing dates

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).

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^*

Howley W Nicholas

(Last) (First) (Middle)

1350 EUCLID AVE

SUITE 1600

(Street)

CLEVELAND OHIO 44115

(City) (State) (Zip)

UNITED STATES

(Country)

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)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/20/2026

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

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

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

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	03/20/2026		A		113(1)	A	$1,214.66	113	D
Common Stock								8,262	I	The Howley Family Foundation
Common Stock								21,547.513	I	W. Nicholas Howley Family Trust u/a/d 4/23/99

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

	/s/ Rachel Quinlan as attorney in fact for W. Nicholas Howley	03/23/2026
	** 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.
* Form 4: SEC 1474 (03-26)