大株主の所有状況（株式数、持株比率）
[{"name":"北 村 良 一","value":1429000,"percentage":"15.4"},{"name":"有限会社ケイアンドエム","value":1317000,"percentage":"14.19"},{"name":"北 村 誠","value":624000,"percentage":"6.73"},{"name":"北 村 裕 三","value":487000,"percentage":"5.25"},{"name":"吉野石膏株式会社","value":350000,"percentage":"3.77"},{"name":"北恵社員持株会","value":341000,"percentage":"3.68"},{"name":"株式会社りそな銀行","value":200000,"percentage":"2.15"},{"name":"三菱UFJ信託銀行株式会社","value":188000,"percentage":"2.03"},{"name":"INTERACTIVEBROKERS 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":147000,"percentage":"1.58"},{"name":"日本生命保険相互会社","value":133000,"percentage":"1.44"}]
上位10株主の持株比率合計は56.22%です。
所有者別構成（単元数、持株比率）
[{"name":"個人その他","value":68634,"percentage":"68.66"},{"name":"その他の法人","value":20644,"percentage":"20.65"},{"name":"金融機関","value":8072,"percentage":"8.07"},{"name":"個人以外","value":0,"percentage":"2.43"},{"name":"金融商品取引業者","value":164,"percentage":"0.16"},{"name":"個人","value":0,"percentage":"0.03"}]