Top managers at several major firms apologized to shareholders Thursday over a variety of corporate scandals, including the arrests of former board members.

Some 243 firms, or 14.1 percent of companies listed on the Tokyo Stock Exchange, convened shareholders' meetings during the course of the day.

The managers in question represented firms such as Tokyo Electric Power Co., Nagoya Railroad Co., Daiwa Securities Group Inc., Nikko Cordial Corp. and Duskin Co.