大株主の所有状況（株式数、持株比率）
[{"name":"ケイエスケイケイ株式会社","value":3980000,"percentage":"36.62"},{"name":"日本マスタートラスト信託銀行 株式会社(信託口)","value":856000,"percentage":"7.88"},{"name":"株式会社日本カストディ銀行（信託口）","value":225000,"percentage":"2.08"},{"name":"SMBC日興証券株式会社","value":221000,"percentage":"2.04"},{"name":"河端 真一","value":204000,"percentage":"1.88"},{"name":"BBH FOR FIDELITY LOW-PRICED STOCK FUND (PRINCIPAL ALL SECTOR SUBPORTFOLIO) （常任代理人 株式会社三菱UFJ銀行）","value":183000,"percentage":"1.69"},{"name":"野村信託銀行株式会社（投信口）","value":108000,"percentage":"0.99"},{"name":"ヨシダ トモヒロ","value":62000,"percentage":"0.58"},{"name":"水野 愛","value":58000,"percentage":"0.54"},{"name":"学究社役員持株会","value":58000,"percentage":"0.54"}]
上位10株主の持株比率合計は54.84%です。
所有者別構成（単元数、持株比率）
[{"name":"個人その他","value":41174,"percentage":"38.68"},{"name":"その他の法人","value":40530,"percentage":"38.08"},{"name":"金融機関","value":12767,"percentage":"11.99"},{"name":"個人以外","value":0,"percentage":"7.64"},{"name":"金融商品取引業者","value":3743,"percentage":"3.52"},{"name":"個人","value":0,"percentage":"0.09"}]