大株主の所有状況（株式数、持株比率）
[{"name":"日本マスタートラスト信託銀行株式会社（信託口）","value":2018000,"percentage":"10.5"},{"name":"株式会社日本カストディ銀行（信託口）","value":1534000,"percentage":"7.97"},{"name":"長野計器取引先持株会","value":1482000,"percentage":"7.71"},{"name":"エア・ウォーター株式会社","value":1402000,"percentage":"7.29"},{"name":"株式会社八十二銀行","value":789000,"percentage":"4.1"},{"name":"日本酸素ホールディングス株式会社","value":700000,"percentage":"3.64"},{"name":"宮下 茂","value":578000,"percentage":"3.0"},{"name":"ニデックインスツルメンツ株式会社","value":521000,"percentage":"2.71"},{"name":"八十二キャピタル株式会社","value":506000,"percentage":"2.63"},{"name":"戸谷 直樹","value":451000,"percentage":"2.35"}]
上位10株主の持株比率合計は51.9%です。
所有者別構成（単元数、持株比率）
[{"name":"個人その他","value":78827,"percentage":"40.64"},{"name":"金融機関","value":50807,"percentage":"26.2"},{"name":"その他の法人","value":50046,"percentage":"25.8"},{"name":"個人以外","value":0,"percentage":"4.61"},{"name":"金融商品取引業者","value":5313,"percentage":"2.74"},{"name":"個人","value":0,"percentage":"0.01"}]