大株主の所有状況（株式数、持株比率）
[{"name":"㈲ワイ・エム・ジィ","value":453000,"percentage":"34.9"},{"name":"共和工業所取引先持株会","value":115000,"percentage":"8.9"},{"name":"名古屋中小企業投資育成株式会社","value":104000,"percentage":"8.0"},{"name":"共和工業所社員持株会","value":61000,"percentage":"4.7"},{"name":"INTERACTIVE BROKERS LLC（常任代理人インタラクティブ・ブローカーズ証券株式会社）","value":52000,"percentage":"4.0"},{"name":"GOLDMAN SACHS INTERNATIONAL（常任代理人ゴールドマン・サックス証券株式会社）","value":26000,"percentage":"2.0"},{"name":"カネマツ鋼材株式会社","value":15000,"percentage":"1.2"},{"name":"上田運輸株式会社","value":14000,"percentage":"1.1"},{"name":"株式会社商工組合中央金庫","value":13000,"percentage":"1.0"},{"name":"岸 正歳","value":13000,"percentage":"1.0"}]
上位10株主の持株比率合計は66.8%です。
所有者別構成（単元数、持株比率）
[{"name":"その他の法人","value":6144,"percentage":"45.28"},{"name":"個人その他","value":5612,"percentage":"41.36"},{"name":"個人以外","value":0,"percentage":"10.66"},{"name":"金融商品取引業者","value":227,"percentage":"1.67"},{"name":"金融機関","value":135,"percentage":"0.99"},{"name":"個人","value":0,"percentage":"0.03"}]