大株主の所有状況（株式数、持株比率）
[{"name":"公益財団法人ウエスコ学術振興財団","value":1942000,"percentage":"14.3"},{"name":"公益財団法人加納美術振興財団","value":1000000,"percentage":"7.37"},{"name":"ウエスコ社員持株会","value":943000,"percentage":"6.95"},{"name":"内藤 征吾","value":385000,"percentage":"2.84"},{"name":"森 一成","value":371000,"percentage":"2.74"},{"name":"住友生命保険相互会社","value":299000,"percentage":"2.2"},{"name":"光通信株式会社","value":287000,"percentage":"2.12"},{"name":"株式会社建設技術研究所","value":180000,"percentage":"1.33"},{"name":"加納 佳世子","value":120000,"percentage":"0.88"},{"name":"ASGJapan株式会社","value":106000,"percentage":"0.79"}]
上位10株主の持株比率合計は41.52%です。
所有者別構成（単元数、持株比率）
[{"name":"個人その他","value":90898,"percentage":"66.42"},{"name":"その他の法人","value":38136,"percentage":"27.87"},{"name":"個人以外","value":0,"percentage":"2.94"},{"name":"金融機関","value":3353,"percentage":"2.45"},{"name":"金融商品取引業者","value":247,"percentage":"0.18"},{"name":"個人","value":0,"percentage":"0.14"}]