|
（単位：千株）
|
2016/03
|
2017/03
|
2018/03
|
2019/03
|
2020/06
|
2021/03
|
2022/03
|
2023/03
|
2024/03
|
2025/03
|
|
井上 弘之
|
|
|
|
|
27.84%
|
27.84%
|
27.84%
|
27.84%
|
27.84%
|
27.84%
|
|
セイホク
|
|
|
|
|
10.09%
|
10.09%
|
10.09%
|
10.09%
|
9.94%
|
9.94%
|
|
T・B・H
|
|
|
|
|
8.8%
|
8.8%
|
8.8%
|
8.8%
|
8.8%
|
8.8%
|
|
吉岡 裕之
|
|
|
|
|
4.37%
|
5%
|
5%
|
5.59%
|
6.1%
|
6.28%
|
|
日本マスタートラスト信託銀行
|
|
|
|
|
3.06%
|
3.06%
|
3.06%
|
3.06%
|
3.06%
|
3.06%
|
|
JKホールディングス
|
|
|
|
|
2.91%
|
2.91%
|
2.91%
|
2.91%
|
2.91%
|
2.91%
|
|
小林 誠
|
|
|
|
|
-
|
-
|
-
|
-
|
-
|
2.82%
|
|
三勇床工事
|
|
|
|
|
-
|
-
|
-
|
-
|
2.25%
|
2.37%
|
|
吉野石膏
|
|
|
|
|
2.2%
|
2.2%
|
2.2%
|
2.2%
|
2.2%
|
2.2%
|
|
三菱UFJ銀行
|
|
|
|
|
1.86%
|
1.86%
|
1.86%
|
1.86%
|
-
|
1.86%
|
|
GMOクリック証券
|
|
|
|
|
-
|
-
|
-
|
-
|
2.71%
|
-
|
|
楽天証券
|
|
|
|
|
-
|
-
|
-
|
-
|
2.17%
|
-
|
|
吉野 勝秀
|
|
|
|
|
-
|
-
|
-
|
1.89%
|
-
|
-
|
|
東京ボード工業従業員持株会
|
|
|
|
|
2.66%
|
2.53%
|
2.63%
|
1.86%
|
-
|
-
|
|
みずほ銀行
|
|
|
|
|
1.86%
|
1.86%
|
1.86%
|
-
|
-
|
-
|
|
三菱東京UFJ銀行
|
|
|
|
|
-
|
-
|
-
|
-
|
-
|
-
|
|
高橋 新
|
|
|
|
|
-
|
-
|
-
|
-
|
-
|
-
|
|
鈴木 吉助
|
|
|
|
|
-
|
-
|
-
|
-
|
-
|
-
|
|
計
|
|
|
|
|
65.71%
|
66.21%
|
66.32%
|
66.17%
|
68.04%
|
68.13%
|