TransDigm Group (NYSE: TDG) holder files Form 144 to sell 17,526 shares

Rhea-AI Filing Summary

A shareholder has filed a notice of proposed sale of 17,526 shares of common stock under Rule 144. The shares are to be sold through Morgan Stanley Smith Barney LLC on the NYSE, with an indicated aggregate market value of $23,438,045.58, compared with 56,318,584 shares of the same class reported as outstanding. The seller acquired these 17,526 shares on 12/04/2025 through a cash exercise of stock options on that date.

Over the past three months, the person for whose account the securities are to be sold, identified in multiple entries as The Fortuna Trust U/T/A DTD 06/01/2018, has already sold several blocks of common stock under a Rule 10b5-1 plan, including 7,191 shares on 11/18/2025 for $9,791,047.47 and 4,592 shares on 11/28/2025 for $6,248,486.61. By signing the notice, the seller represents that they do not know of any undisclosed material adverse information about the issuer’s current or prospective operations.

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	17526	23438045.58	56318584	12/04/2025	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	12/04/2025	Exercise of Stock Options	Issuer			17526	12/04/2025	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
10b5-1 Sales for THE FORTUNA TRUST U/T/A DTD 06/01/2018 1350 Euclid Avenue, Suite 1600 Cleveland OH 44115	Common	11/28/2025	4592	6248486.61
10b5-1 Sales for THE FORTUNA TRUST U/T/A DTD 06/01/2018 1350 Euclid Avenue, Suite 1600 Cleveland OH 44115	Common	11/26/2025	30	40801.80
10b5-1 Sales for THE FORTUNA TRUST U/T/A DTD 06/01/2018 1350 Euclid Avenue, Suite 1600 Cleveland OH 44115	Common	11/25/2025	4187	5696739.37
10b5-1 Sales for THE FORTUNA TRUST U/T/A DTD 06/01/2018 1350 Euclid Avenue, Suite 1600 Cleveland OH 44115	Common	11/21/2025	230	312871.20
10b5-1 Sales for THE FORTUNA TRUST U/T/A DTD 06/01/2018 1350 Euclid Avenue, Suite 1600 Cleveland OH 44115	Common	11/20/2025	1104	1502423.47
10b5-1 Sales for THE FORTUNA TRUST U/T/A DTD 06/01/2018 1350 Euclid Avenue, Suite 1600 Cleveland OH 44115	Common	11/18/2025	7191	9791047.47
10b5-1 Sales for THE FORTUNA TRUST U/T/A DTD 06/01/2018 1350 Euclid Avenue, Suite 1600 Cleveland OH 44115	Common	10/27/2025	700	952000.00

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does this Form 144 filing for TDG disclose?

The filing discloses that a shareholder plans to sell 17,526 shares of common stock under Rule 144 through Morgan Stanley Smith Barney LLC on the NYSE, with an aggregate market value of $23,438,045.58.

How were the 17,526 TDG shares in this Form 144 acquired?

The 17,526 common shares covered by the notice were acquired on 12/04/2025 via an exercise of stock options, paid for in cash on the same date.

How many TDG shares are reported as outstanding in this Form 144?

The notice reports that there are 56,318,584 shares of the same class of common stock outstanding at the time of the filing.

What prior TDG stock sales are listed for the seller in the past 3 months?

The filing lists several prior common stock sales for The Fortuna Trust U/T/A DTD 06/01/2018 under a 10b5-1 plan, including 7,191 shares sold on 11/18/2025 for $9,791,047.47 and 4,592 shares sold on 11/28/2025 for $6,248,486.61.

What representation does the seller make in this TDG Form 144 notice?

By signing, the seller represents that they do not know any material adverse information about the issuer’s current or prospective operations that has not been publicly disclosed.

Is a Rule 10b5-1 trading plan referenced in this TDG Form 144?

Yes. The section on securities sold during the past three months describes the transactions as 10b5-1 sales for The Fortuna Trust U/T/A DTD 06/01/2018, indicating they were made under a pre-established trading plan.