|
（単位：千株）
|
2016/03
|
2017/03
|
2018/03
|
2019/03
|
2020/03
|
2021/03
|
2022/03
|
2023/03
|
2024/03
|
2025/03
|
|
理想社
|
|
|
|
|
14.23%
|
14.23%
|
14.64%
|
14.79%
|
15.04%
|
15.41%
|
|
公益財団法人理想教育財団
|
|
|
|
|
7.66%
|
7.66%
|
7.88%
|
7.96%
|
8.1%
|
8.3%
|
|
日本マスタートラスト信託銀行
|
|
|
|
|
2.47%
|
2.94%
|
6.29%
|
6.79%
|
6.04%
|
6.17%
|
|
あかつき興産
|
|
|
|
|
5.64%
|
5.64%
|
5.8%
|
5.86%
|
5.96%
|
6.11%
|
|
みずほ信託銀行
|
|
|
|
|
4.51%
|
4.51%
|
4.64%
|
4.69%
|
4.77%
|
4.88%
|
|
羽山 治
|
|
|
|
|
3.44%
|
3.44%
|
3.53%
|
3.57%
|
3.63%
|
3.72%
|
|
羽山 尚
|
|
|
|
|
3.39%
|
3.36%
|
3.46%
|
3.49%
|
3.48%
|
3.57%
|
|
羽山 明
|
|
|
|
|
3.28%
|
3.17%
|
3.19%
|
3.11%
|
3.16%
|
3.17%
|
|
理想科学工業従業員持株会
|
|
|
|
|
3.85%
|
3.88%
|
3.4%
|
3.04%
|
2.77%
|
2.75%
|
|
伊藤 眞理子
|
|
|
|
|
3.05%
|
2.92%
|
2.91%
|
2.76%
|
2.71%
|
2.66%
|
|
DAWN
|
|
|
|
|
-
|
-
|
-
|
-
|
-
|
-
|
|
理想科学工業
|
|
|
|
|
-
|
-
|
-
|
-
|
-
|
-
|
|
計
|
|
|
|
|
51.56%
|
51.8%
|
55.8%
|
56.1%
|
55.7%
|
56.78%
|