TransDigm Group (NYSE: TDG) insider plans Rule 144 sale of 37,690 shares

Rhea-AI Filing Summary

TransDigm Group (TDG) insiders filed to sell common stock under Rule 144. A total of 37,690 common shares are listed for potential sale on 08/07/2026 through Morgan Stanley Smith Barney LLC Executive Financial Services, following an exercise of stock options for cash. The filing also notes a prior 10b5-1 sale of 250 common shares on 06/25/2026 by The Fortuna Trust, with reported proceeds of $340,005.90.

Key Figures

Shares to be sold: 37,690 shares Sale date: 08/07/2026 Recent 10b5-1 sale shares: 250 shares +1 more

4 metrics

Shares to be sold 37,690 shares Common stock listed for potential Rule 144 sale on 08/07/2026

Sale date 08/07/2026 Date for planned Rule 144 sale of 37,690 common shares

Recent 10b5-1 sale shares 250 shares 10b5-1 sale for The Fortuna Trust on 06/25/2026

Recent 10b5-1 sale proceeds $340,005.90 Proceeds from 250-share sale on 06/25/2026

Key Terms

Rule 144, 10b5-1, Exercise of Stock Options, common shares

4 terms

Rule 144 regulatory

"insiders filed to sell common stock under Rule 144"

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

10b5-1 regulatory

"10b5-1 sale of 250 TDG common shares on 06/25/2026"

A 10b5-1 plan is a pre-set schedule that lets company insiders buy or sell shares according to written instructions made when they do not possess material, nonpublic information. Think of it as a timed automatic payment for stock trades: it helps insiders avoid accusations of trading on secret information and gives outside investors a clearer signal about whether sales are routine or potentially informative about the company’s prospects.

Exercise of Stock Options financial

"08/07/2026 | Exercise of Stock Options | Issuer"

common shares financial

"37,690 common shares are listed for potential sale"

Common shares are the basic units of ownership in a company that give holders a claim on profits and a right to vote on key matters, like electing the board. Think of them as membership cards in a club: they let you share in successes and losses, but in a bankruptcy or liquidation they are paid after creditors and preferred shareholders, so their value can swing more and matters for assessing risk and potential return.

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

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Available on EDGAR 08/07/2026 - 04:38 PM Accepted by SEC EDGAR 08/07/2026 - 04:37 PM Learn about SEC filing dates

FAQ

What amount of TDG common stock is planned for sale under this Rule 144 filing?

The filing covers 37,690 common shares of TransDigm Group planned for potential sale on 08/07/2026 after a cash exercise of stock options, using Morgan Stanley Smith Barney LLC Executive Financial Services as the broker.

What is the nature of the TDG shares being sold in this Rule 144 notice?

The planned sale involves common shares acquired through the exercise of stock options. The options are indicated as exercised for cash, and the resulting 37,690 shares are listed as securities to be sold on 08/07/2026.

Which broker is handling the planned TDG Rule 144 stock sale?

The transaction is listed through Morgan Stanley Smith Barney LLC Executive Financial Services, located at 1 New York Plaza, 8th Floor, New York, NY 10004, acting as the broker for the 37,690 TDG common shares.

What recent TDG stock sales are disclosed for the past three months?

The filing discloses a 10b5-1 sale of 250 TDG common shares on 06/25/2026 for The Fortuna Trust, with reported proceeds of $340,005.90, in addition to the newly listed planned sale.

What is the trading market listed for the TDG common shares in this Rule 144 filing?

The common shares referenced in the filing are listed on the NYSE. The Rule 144 notice covers 37,690 TDG common shares to be sold on 08/07/2026 through the New York Stock Exchange.

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	37690	47567418.30	55276525	08/07/2026	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	08/07/2026	Exercise of Stock Options	Issuer			37690	08/07/2026	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	06/25/2026	250	340005.90

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)