|
（単位：千株）
|
2016/03
|
2017/03
|
2018/03
|
2019/03
|
2020/03
|
2021/03
|
2022/03
|
2023/03
|
2024/03
|
2025/03
|
|
シグマ
|
|
|
|
|
17.63%
|
17.63%
|
17.63%
|
17.63%
|
17.63%
|
17.63%
|
|
石橋 健藏
|
|
|
|
|
12.91%
|
12.91%
|
12.91%
|
12.91%
|
12.91%
|
12.91%
|
|
公益財団法人石橋奨学会
|
|
|
|
|
9.1%
|
9.1%
|
9.1%
|
9.1%
|
9.1%
|
9.1%
|
|
朝日生命保険相互会社
|
|
|
|
|
7.01%
|
7.01%
|
7.01%
|
6.99%
|
6.99%
|
6.99%
|
|
昭和化学工業取引先持株会
|
|
|
|
|
3.46%
|
3.73%
|
4.05%
|
4.11%
|
4.36%
|
4.65%
|
|
白山工業
|
|
|
|
|
3.88%
|
3.88%
|
3.69%
|
3.69%
|
3.11%
|
3.11%
|
|
三井住友銀行
|
|
|
|
|
3.55%
|
3.55%
|
3.3%
|
3.09%
|
3.09%
|
3.09%
|
|
石橋 敬子
|
|
|
|
|
2.88%
|
2.88%
|
2.88%
|
2.88%
|
2.88%
|
2.88%
|
|
北沢産業
|
|
|
|
|
2.32%
|
2.32%
|
2.32%
|
2.32%
|
2.32%
|
2.32%
|
|
北陸銀行
|
|
|
|
|
-
|
-
|
-
|
2.1%
|
2.1%
|
2.1%
|
|
みずほ銀行
|
|
|
|
|
3.01%
|
3.01%
|
2.7%
|
2.1%
|
2.1%
|
2.1%
|
|
石橋 俊一郎
|
|
|
|
|
-
|
-
|
-
|
-
|
-
|
-
|
|
東興パーライト工業
|
|
|
|
|
-
|
-
|
-
|
-
|
-
|
-
|
|
計
|
|
|
|
|
65.74%
|
66.01%
|
65.58%
|
66.92%
|
66.6%
|
66.88%
|