NEW YORK, May 28 (Reuters) - Alan "Ace" Greenberg, the former chief executive of Bear Stearns Cos Inc BSC.N has sold his last remaining shares of the investment bank, according to a Securities and Exchange Commission filing on Wednesday.

Greenberg, who is chairman of the executive committee, sold 15,000 shares at $9.26 per share on Friday. After the sale, Greenberg, who joined the firm in 1949 and served as CEO from 1978 to 1993, no longer held any shares in the bank.

In a separate filing, Bear director Carl Glickman reported the Friday sale of 291,542 shares at $9.30 a share. The sale also cashed out his Bear holdings. (Reporting by Joseph A. Giannone; editing by Jeffrey Benkoe)