大株主の所有状況（株式数、持株比率）
[{"name":"エム・エヌ・エス株式会社","value":1188000,"percentage":"29.52"},{"name":"西 信 之","value":240000,"percentage":"5.97"},{"name":"西 光 世","value":174000,"percentage":"4.34"},{"name":"協立電機社員持株会","value":140000,"percentage":"3.49"},{"name":"協立電機取引先持株会","value":138000,"percentage":"3.44"},{"name":"株式会社三菱UFJ銀行","value":138000,"percentage":"3.43"},{"name":"西 雅 彦","value":128000,"percentage":"3.2"},{"name":"西 美 弥 子","value":104000,"percentage":"2.6"},{"name":"株式会社静岡銀行（常任代理人 日本マスタートラスト信託銀行株式会社）","value":102000,"percentage":"2.53"},{"name":"横河電機株式会社","value":96000,"percentage":"2.39"}]
上位10株主の持株比率合計は60.91%です。
所有者別構成（単元数、持株比率）
[{"name":"個人その他","value":22081,"percentage":"50.8"},{"name":"その他の法人","value":14167,"percentage":"32.6"},{"name":"金融機関","value":6328,"percentage":"14.5"},{"name":"個人以外","value":0,"percentage":"1.5"},{"name":"金融商品取引業者","value":248,"percentage":"0.6"},{"name":"個人","value":0,"percentage":"0.0"}]