Among Tokyo Electric Power Co.'s biggest shareholders, only one has increased its holdings since the disaster at the Fukushima No. 1 nuclear plant: Its employees.

The Tokyo Electric Employee Shareholding Association became the fifth-biggest stakeholder in Tepco, with 30.1 million shares, up 35.6 percent, as of Sept. 30, securities reports to the Tokyo Stock Exchange show. The association was ranked eighth on Sept. 30 of last year.

Three other large shareholders cut their stakes, including Japan Trustee Services Bank Ltd., which dropped to sixth, and Master Trust Bank of Japan Ltd. to seventh. Five, including Sumitomo Mitsui Banking Corp., left their stakes unchanged.