Item 5. MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES

Market Information

Our common stock is traded on the New York Stock Exchange, or NYSE, under the ticker symbol “TDG.”

Holders

As of October 16, 2025, there were 27 stockholders of record of our common stock and approximately 908,000 beneficial stockholders, which includes an estimated number of stockholders who have their shares held in their accounts by banks and brokers.

Special Dividends

On August 20, 2025, the Company's Board of Directors authorized and declared a special cash dividend of $90.00 on each outstanding share of common stock and cash dividend equivalent payments on eligible vested options outstanding under its stock option plans. The total cash payment, funded by a combination of $5,000 million in new senior secured and unsecured debt and existing cash on hand, related to the special dividend and dividend equivalents was approximately $5,232 million in September 2025.

Any future declaration of special cash dividends on our common stock will be at the discretion of our Board of Directors and will depend upon our results of operations, earnings, capital requirements, financial condition, future prospects, contractual restrictions under the Second Amended and Restated Credit Agreement dated as of June 4, 2014 (the “Credit Agreement”) and indentures governing the Notes, the availability of surplus under Delaware law and other factors deemed relevant by our Board of Directors. TD Group is a holding company and conducts all of its operations through direct and indirect subsidiaries. Unless TD Group receives dividends, distributions, advances, transfers of funds or other payments from our subsidiaries, TD Group will be unable to pay any dividends on our common stock in the future. The ability of any subsidiaries to take any of the foregoing actions is limited by the terms of our term loans and indentures and may be limited by future debt or other agreements that we may enter into.

Performance Graph

Set forth below is a line graph comparing the cumulative total return of a hypothetical investment in the shares of common stock of TD Group with the cumulative total return of a hypothetical investment in each of the S&P 500 Index and the S&P Aerospace & Defense Select Industry Index. An investment of $100 (with reinvestment of all dividends) is assumed to have been made in our common stock and in each of the indexes on September 30, 2020, and its relative performance is tracked through September 30, 2025.

The following performance graph and related information shall not be deemed “soliciting material” nor to be “filed” with the SEC, nor shall such information be incorporated by reference into any future filings under the Securities Act of 1933 or the Securities Exchange Act of 1934, each as amended, except to the extent we specifically incorporate it by reference into such filing.

COMPARISON OF 5 YEAR CUMULATIVE TOTAL RETURN*

Among TransDigm Group Inc., the S&P 500 Index and S&P Aerospace & Defense Select Industry Index

*$100 invested on 9/30/2020 in stock or index, including reinvestment of dividends.

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Purchases of Equity Securities by the Issuer or Affiliated Purchaser

No purchases of equity securities were made during the fourth quarter of fiscal 2025. Refer to Note 14, “Stock Repurchase Program,” in the notes to the consolidated financial statements for information on the Company’s stock repurchase program.