[144] TransDigm Group INC SEC Filing

Rhea-AI Filing Summary

Form 144 Notice for TransDigm Group Inc (TDG) shows a proposed sale of 9,000 shares of common stock$11,484,613.00. The shares were acquired by the seller via an option exercise on 11/08/2017 (65,000 shares acquired) and the planned sale date is listed as 08/20/2025 with payment noted as cash. The filing also discloses three recent sales by the same person during the past three months—3,000 shares on 05/20/2025, 06/20/2025 and 07/21/2025—with gross proceeds of $4,303,050.00, $4,272,803.00 and $4,793,579.00 respectively. The filer affirms no undisclosed material adverse information and signs under Rule 144 attestation requirements.

Positive

• Clear regulatory disclosure: The filer submitted a Rule 144 notice providing required details of the proposed sale.
• Broker disclosed: Stifel Nicolaus & Company is named as the broker for the transaction.
• Acquisition history provided: The filing shows the shares were acquired via option exercise on 11/08/2017, aiding transparency.

Negative

• Sizeable proposed sale: 9,000 shares with an aggregate market value of $11,484,613.00 may be viewed negatively by some investors.
• Recent prior sales: The filer sold 3,000 shares in each of the past three months, with combined gross proceeds of about $13,369,432.00, indicating ongoing insider liquidation.

Insights

Financial Analyst

TL;DR: Routine Rule 144 sale notice showing planned disposal of 9,000 TDG shares, following prior small tranche sales.

The filing documents a proposed sale of 9,000 common shares with an aggregate market value of $11.48 million through Stifel Nicolaus, consistent with a registered person's use of Rule 144 to liquidate previously acquired option shares. The shares were acquired via option exercise in 2017 and payment for the planned sale is cash. The three disclosed sales in the prior three months total 9,000 shares with combined gross proceeds of about $13.37 million, indicating ongoing staged dispositions rather than a single large block sale. From a financial analysis perspective, this is informative about insider liquidity but does not, by itself, change company fundamentals.

Corporate Governance Expert

TL;DR: Significant insider sales recorded recently; investors may note timing and magnitude though the filing is a standard disclosure.

The notice is a formal compliance disclosure for a proposed sale under Rule 144. It identifies the seller's past three monthly sales and a new planned sale of 9,000 shares valued at $11.48 million. Such sequential sales by an insider or affiliated person are material to governance transparency because they reveal monetization of equity holdings. The filing includes the required attestation that no undisclosed material adverse information exists. The disclosure is complete for its purpose but flags meaningful insider liquidity.

09/22/2025 - 04:08 PM

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 Stock	Stifel Nicolaus & Company Inc 501 N Broadway St. Louis MO 63102	9000	11484613.00	56350285	08/20/2025	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 Stock	11/08/2017	Option Exercise	Issuer			65000	08/22/2025	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
Joel Reiss 1301 East 9th Street Cleveland OH 44114	Common Stock	07/21/2025	3000	4793579.00
Joel Reiss 1301 East 9th Street Cleveland OH 44114	Common Stock	06/20/2025	3000	4272803.00
Joel Reiss 1301 East 9th Street Cleveland OH 44114	Common Stock	05/20/2025	3000	4303050.00

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 the TDG Form 144 disclose about the proposed sale?

The Form 144 discloses a proposed sale of 9,000 shares of TransDigm Group common stock through Stifel Nicolaus with an aggregate market value of $11,484,613.00 and an approximate sale date of 08/20/2025.

How and when were the shares being sold on Form 144 originally acquired?

The filing states the shares were acquired by option exercise on 11/08/2017, showing the acquisition method and original date.

Has the filer sold TDG shares recently?

Yes. The filing lists three sales by the same person in the past three months: 3,000 shares on 05/20/2025 (gross proceeds $4,303,050), 3,000 on 06/20/2025 (gross proceeds $4,272,803), and 3,000 on 07/21/2025 (gross proceeds $4,793,579).

Who is the broker handling the proposed sale?

The broker named on the Form 144 is Stifel Nicolaus & Company Inc located at 501 N Broadway, St. Louis, MO.

Does the filer attest to material information in the Form 144?

Yes. The filer represents by signing the notice that they do not know any material adverse information about the issuer that has not been publicly disclosed.