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":509000,"percentage":"15.1"},{"name":"村 岡 克 彦","value":359000,"percentage":"10.7"},{"name":"株式会社湊組","value":271000,"percentage":"8.1"},{"name":"株式会社埼玉りそな銀行","value":157000,"percentage":"4.7"},{"name":"石 田 龍 山","value":154000,"percentage":"4.6"},{"name":"株式会社山本本店","value":107000,"percentage":"3.2"},{"name":"日東紡績株式会社","value":100000,"percentage":"3.0"},{"name":"清 水 長 助","value":67000,"percentage":"2.0"},{"name":"新報国マテリアル取引先持株会","value":49000,"percentage":"1.4"},{"name":"新報国マテリアル従業員持株会","value":44000,"percentage":"1.3"}]
上位10株主の持株比率合計は54.1%です。
所有者別構成（単元数、持株比率）
[{"name":"個人その他","value":21440,"percentage":"61.22"},{"name":"その他の法人","value":10806,"percentage":"30.85"},{"name":"金融機関","value":1734,"percentage":"4.95"},{"name":"金融商品取引業者","value":826,"percentage":"2.36"},{"name":"個人以外","value":0,"percentage":"0.59"},{"name":"個人","value":0,"percentage":"0.03"}]