大株主の所有状況（株式数、持株比率）
[{"name":"洞下 英人","value":1186000,"percentage":"15.0"},{"name":"東京中小企業投資育成株式会社","value":720000,"percentage":"9.11"},{"name":"有限会社サンワールド","value":680000,"percentage":"8.6"},{"name":"サンコーテクノ社員持株会","value":311000,"percentage":"3.94"},{"name":"株式会社日本カストディ銀行（信託口）","value":208000,"percentage":"2.63"},{"name":"新井 栄","value":208000,"percentage":"2.63"},{"name":"佐藤 静男","value":191000,"percentage":"2.42"},{"name":"洞下 正人","value":186000,"percentage":"2.35"},{"name":"株式会社みずほ銀行","value":178000,"percentage":"2.25"},{"name":"佐久間 菊子","value":156000,"percentage":"1.97"}]
上位10株主の持株比率合計は50.9%です。
所有者別構成（単元数、持株比率）
[{"name":"個人その他","value":59993,"percentage":"68.67"},{"name":"その他の法人","value":16883,"percentage":"19.33"},{"name":"金融機関","value":5069,"percentage":"5.8"},{"name":"個人以外","value":0,"percentage":"5.22"},{"name":"金融商品取引業者","value":727,"percentage":"0.83"},{"name":"個人","value":0,"percentage":"0.15"}]