TDG is doing a special dividend. It was in the most recent earning announcement:
CLEVELAND, Aug. 9, 2022 /PRNewswire/ – TransDigm Group Incorporated (NYSE: TDG), a leading global designer, producer and supplier of highly engineered aircraft components, today reported results for the third quarter ended July 2, 2022. The Company also announced that its Board of Directors has authorized and declared a special cash dividend of $18.50 on each outstanding share of common stock and cash dividend equivalent payments under options granted under its stock options plans. The record date for the special dividend is August 19, 2022, and the payment date for the dividend is August 26, 2022.

For whatever reason it is not on the dividend section of the investor relations page, and these special dividends that TDG pays out often get missed. FYI