大株主の所有状況（株式数、持株比率）
[{"name":"日本製鉄株式会社","value":11674000,"percentage":"24.82"},{"name":"日亜興産株式会社","value":3575000,"percentage":"7.6"},{"name":"日亜鋼業取引先持株会","value":3157000,"percentage":"6.71"},{"name":"株式会社日本カストディ銀行（信託口）","value":2092000,"percentage":"4.45"},{"name":"株式会社池田泉州銀行","value":2040000,"percentage":"4.34"},{"name":"株式会社三菱UFJ銀行","value":1845000,"percentage":"3.92"},{"name":"日亜鋼業従業員持株会","value":1350000,"percentage":"2.87"},{"name":"BBH BOSTON FOR NOMURA JAPAN SMALLER CAPITALIZATION FUND 620065（常任代理人 株式会社みずほ銀行決済営業部）","value":1153000,"percentage":"2.45"},{"name":"BBH FOR BBHTSIL NOMURA FUNDS IRELAND － JAPAN SMALL CAP EQUITY FUND（常任代理人 株式会社三菱UFJ銀行決済事業部）","value":1102000,"percentage":"2.34"},{"name":"株式会社みなと銀行","value":1008000,"percentage":"2.14"}]
上位10株主の持株比率合計は61.64%です。
所有者別構成（単元数、持株比率）
[{"name":"その他の法人","value":225845,"percentage":"43.6"},{"name":"個人その他","value":162585,"percentage":"31.4"},{"name":"金融機関","value":87146,"percentage":"16.8"},{"name":"個人以外","value":0,"percentage":"7.1"},{"name":"金融商品取引業者","value":4305,"percentage":"0.8"},{"name":"個人","value":0,"percentage":"0.0"}]