大株主の所有状況（株式数、持株比率）
[{"name":"株式会社麻生","value":4971900,"percentage":"38.73"},{"name":"若築建設協力会社持株会","value":1035944,"percentage":"8.07"},{"name":"日本マスタートラスト信託銀行株式会社（信託口）","value":805200,"percentage":"6.27"},{"name":"三井住友信託銀行株式会社","value":527600,"percentage":"4.11"},{"name":"株式会社三井住友銀行","value":315025,"percentage":"2.45"},{"name":"株式会社日本カストディ銀行（信託口）","value":294400,"percentage":"2.29"},{"name":"株式会社千葉銀行","value":292242,"percentage":"2.28"},{"name":"太平電業株式会社","value":290700,"percentage":"2.26"},{"name":"若築建設従業員持株会","value":270699,"percentage":"2.11"},{"name":"公益財団法人石橋奨学会","value":206050,"percentage":"1.61"}]
上位10株主の持株比率合計は70.18%です。
所有者別構成（単元数、持株比率）
[{"name":"その他の法人","value":61747,"percentage":"47.69"},{"name":"個人その他","value":36675,"percentage":"28.32"},{"name":"金融機関","value":26303,"percentage":"20.31"},{"name":"個人以外","value":0,"percentage":"2.98"},{"name":"金融商品取引業者","value":871,"percentage":"0.67"},{"name":"個人","value":0,"percentage":"0.03"}]