大株主の所有状況（株式数、持株比率）
[{"name":"中国砿業株式会社","value":249000,"percentage":"11.49"},{"name":"丸尾 治男","value":160000,"percentage":"7.39"},{"name":"山陽化学産業株式会社","value":114000,"percentage":"5.26"},{"name":"丸尾 政雄","value":92000,"percentage":"4.25"},{"name":"丸尾 直子","value":54000,"percentage":"2.52"},{"name":"中西電機工業株式会社","value":54000,"percentage":"2.52"},{"name":"損害保険ジャパン株式会社","value":53000,"percentage":"2.48"},{"name":"株式会社三井住友銀行","value":46000,"percentage":"2.15"},{"name":"丸尾カルシウム従業員持株会","value":46000,"percentage":"2.14"},{"name":"今井 一史","value":44000,"percentage":"2.06"}]
上位10株主の持株比率合計は42.26%です。
所有者別構成（単元数、持株比率）
[{"name":"個人その他","value":15453,"percentage":"65.8"},{"name":"その他の法人","value":5623,"percentage":"23.94"},{"name":"金融機関","value":1807,"percentage":"7.69"},{"name":"個人以外","value":0,"percentage":"2.34"},{"name":"金融商品取引業者","value":53,"percentage":"0.23"}]