大株主の所有状況（株式数、持株比率）
[{"name":"日本電設工業株式会社","value":2395000,"percentage":"14.93"},{"name":"大同信号取引先持株会","value":851000,"percentage":"5.31"},{"name":"朝日生命保険相互会社","value":715000,"percentage":"4.46"},{"name":"株式会社みずほ銀行","value":683000,"percentage":"4.26"},{"name":"日本リーテック株式会社","value":655000,"percentage":"4.09"},{"name":"大同信号従業員持株会","value":606000,"percentage":"3.78"},{"name":"有限会社光パワー","value":598000,"percentage":"3.73"},{"name":"株式会社三井住友銀行","value":588000,"percentage":"3.67"},{"name":"重田 康光","value":531000,"percentage":"3.31"},{"name":"大同信号共済会","value":503000,"percentage":"3.14"}]
上位10株主の持株比率合計は50.68%です。
所有者別構成（単元数、持株比率）
[{"name":"個人その他","value":81794,"percentage":"45.5"},{"name":"その他の法人","value":56691,"percentage":"31.5"},{"name":"金融機関","value":32966,"percentage":"18.3"},{"name":"個人以外","value":0,"percentage":"3.6"},{"name":"金融商品取引業者","value":1324,"percentage":"0.7"},{"name":"政府及び地方公共団体","value":811,"percentage":"0.4"},{"name":"個人","value":0,"percentage":"0.0"}]