大株主の所有状況（株式数、持株比率）
[{"name":"横河電機株式会社","value":442000,"percentage":"13.06"},{"name":"株式会社UH Partners2","value":255000,"percentage":"7.53"},{"name":"光通信株式会社","value":251000,"percentage":"7.44"},{"name":"株式会社UH Partners3","value":248000,"percentage":"7.34"},{"name":"西川 徹","value":241000,"percentage":"7.12"},{"name":"西川計測社員持株会","value":166000,"percentage":"4.92"},{"name":"太平電業株式会社","value":112000,"percentage":"3.31"},{"name":"西川 隆司","value":106000,"percentage":"3.14"},{"name":"ジーエルサイエンス株式会社","value":104000,"percentage":"3.09"},{"name":"株式会社エスアイエル","value":81000,"percentage":"2.41"}]
上位10株主の持株比率合計は59.36%です。
所有者別構成（単元数、持株比率）
[{"name":"その他の法人","value":18853,"percentage":"54.95"},{"name":"個人その他","value":14425,"percentage":"42.04"},{"name":"金融機関","value":915,"percentage":"2.67"},{"name":"個人以外","value":0,"percentage":"0.21"},{"name":"金融商品取引業者","value":43,"percentage":"0.13"},{"name":"個人","value":0,"percentage":"0.0"}]