TransDigm (TDG) insider files to sell 15,600 shares after option exercise

Rhea-AI Filing Summary

TransDigm Group insider plans a Rule 144 share sale. A person identified as JOEL B REISS filed to sell 15,600 shares of TransDigm common stock through Morgan Stanley Smith Barney, with an aggregate market value of 20,072,052.00, on or about 02/17/2026 on the NYSE.

The shares were acquired the same day via an exercise of stock options for cash. The notice states there were 56,473,563 common shares outstanding. Over the prior three months, the filer’s 10b5-1 sales included 3,900 shares on 01/15/2026 for gross proceeds of 5,576,694.63 and 3,900 shares on 12/15/2025 for 5,033,033.46.

Insights

Equity markets analyst

Form 144 shows planned insider stock sales alongside option exercise.

The filing outlines a planned sale of 15,600 TransDigm common shares under Rule 144, executed via Morgan Stanley. These shares come from a same-day stock option exercise paid in cash, which is a common way for insiders to realize compensation value.

The document notes 56,473,563 common shares outstanding, giving context for the sale’s scale without quantifying its proportion. It also lists earlier 10b5-1 sales of 3,900 shares each on 12/15/2025 and 01/15/2026 with specified gross proceeds amounts.

Because the transactions follow Rule 144 and, in part, a 10b5-1 framework, they fit standard insider liquidity practices. Future company filings may provide additional detail on any further option exercises or sales, but this notice by itself represents routine administrative disclosure.

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	15600	20072052.00	56473563	02/17/2026	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	02/17/2026	Exercise of Stock Options	Issuer			15600	02/17/2026	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 JOEL B REISS 1350 Euclid Avenue, Suite 1600 Cleveland OH 44115	Common	01/15/2026	3900	5576694.63
10b5-1 Sales for JOEL B REISS 1350 Euclid Avenue, Suite 1600 Cleveland OH 44115	Common	12/15/2025	3900	5033033.46

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 insider transaction does TransDigm (TDG) disclose in this Form 144?

The Form 144 reports a planned sale of 15,600 TransDigm common shares. The shares are to be sold through Morgan Stanley Smith Barney on or about 02/17/2026, following a same-day cash exercise of stock options that delivered the shares being registered for resale.

How many TransDigm (TDG) shares are outstanding in this filing?

The notice states 56,473,563 TransDigm common shares are outstanding. This figure provides context for the 15,600 shares planned for sale under Rule 144, helping investors gauge the relative size of the transaction compared with the company’s total common equity base.

How were the TransDigm (TDG) shares in this Form 144 acquired?

The 15,600 TransDigm shares were acquired by exercising stock options. The filing shows a 02/17/2026 option exercise transaction, with the issuer as the counterparty and cash listed as the nature of payment, immediately preceding the planned sale of those same shares under Rule 144.

What recent 10b5-1 sales by JOEL B REISS in TransDigm (TDG) are disclosed?

The filing lists two recent 10b5-1 TransDigm stock sales. It shows 3,900 common shares sold on 01/15/2026 for gross proceeds of 5,576,694.63 and another 3,900 shares sold on 12/15/2025 for gross proceeds of 5,033,033.46, both attributed to 10b5-1 sales.

Which broker is handling the planned TransDigm (TDG) Rule 144 sale?

Morgan Stanley Smith Barney LLC Executive Financial Services is the broker. The filing lists its address as 1 New York Plaza, 8th Floor, New York, NY 10004 and identifies the NYSE as the securities exchange for the planned 15,600-share sale of TransDigm common stock.

What representation does the TransDigm (TDG) Form 144 filer make about issuer information?

The filer represents they know no undisclosed material adverse information. By signing, the person for whose account the securities are to be sold confirms they are not aware of material adverse information about TransDigm’s current or prospective operations that has not already been publicly disclosed.