He became president of his company in 1963, remaining active until last year, when he stepped down as chairman and chief executive, citing health problems.

Mr. Traub is about to step down as chairman and chief executive next month.

Mr. Hansen stepped down as president and chief executive in 1972.

She is de-personalizing the business, stepping down as chairwoman and chief executive.

Mr. Jones stepped down as chief executive at the end of last year and has not been active in managing the company since then.

Mr. Khodorkovsky stepped down as chief executive after his arrest.

Elias Zinn stepped down as president and chief executive but remains a director.

Patrick Sherwood, 52, is stepping down as president and chief executive, effective at the end of June.

In 1994, the firm laid off half its staff and Gibbons stepped down as chief executive.

A tentative $41 million settlement reached in August that would have required him to step down as chairman and chief executive fell apart recently.