理想科学工業JP:6413
時価総額
¥896.4億
PER
17.7倍
印刷機器関連事業では「オルフィス」や「リソグラフ」を展開し、インクジェットヘッド事業や不動産事業、プリントクリエイト事業なども手がける。
大株主
| （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 | 4,941 10.42% | 4,941 10.42% | 4,941 13.47% | 4,941 13.8% | 4,941 14.23% | 4,941 14.23% | 4,941 14.64% | 4,941 14.79% | 4,941 15.04% | 9,883 15.41% |
| 公益財団法人理想教育財団 | 2,661 5.61% | 2,661 5.61% | 2,661 7.25% | 2,661 7.43% | 2,661 7.66% | 2,661 7.66% | 2,661 7.88% | 2,661 7.96% | 2,661 8.1% | 5,323 8.3% |
| 日本マスタートラスト信託銀行 | 858 2.47% | 1,021 2.94% | 2,122 6.29% | 2,268 6.79% | 1,984 6.04% | 3,960 6.17% | ||||
| あかつき興産 | 1,959 4.13% | 1,959 4.13% | 1,959 5.34% | 1,959 5.47% | 1,959 5.64% | 1,959 5.64% | 1,959 5.8% | 1,959 5.86% | 1,959 5.96% | 3,918 6.11% |
| みずほ信託銀行 | 1,567 3.31% | 1,567 3.31% | 1,567 4.27% | 1,567 4.37% | 1,567 4.51% | 1,567 4.51% | 1,567 4.64% | 1,567 4.69% | 1,567 4.77% | 3,135 4.88% |
| 羽山 治 | 1,194 2.52% | 1,194 2.52% | 1,194 3.25% | 1,194 3.33% | 1,194 3.44% | 1,194 3.44% | 1,194 3.53% | 1,194 3.57% | 1,194 3.63% | 2,388 3.72% |
| 羽山 尚 | 1,180 2.49% | 1,180 2.49% | 1,180 3.22% | 1,180 3.29% | 1,180 3.39% | 1,168 3.36% | 1,168 3.46% | 1,168 3.49% | 1,146 3.48% | 2,292 3.57% |
| 羽山 明 | 1,192 2.52% | 1,179 2.49% | 1,155 3.15% | 1,155 3.22% | 1,139 3.28% | 1,101 3.17% | 1,079 3.19% | 1,041 3.11% | 1,041 3.16% | 2,034 3.17% |
| 理想科学工業従業員持株会 | 1,653 3.49% | 1,623 3.43% | 1,563 4.26% | 1,397 3.9% | 1,336 3.85% | 1,348 3.88% | 1,147 3.4% | 1,016 3.04% | 910 2.77% | 1,765 2.75% |
| 伊藤 眞理子 | 1,170 2.47% | 1,134 2.39% | 1,104 3.01% | 1,089 3.04% | 1,059 3.05% | 1,014 2.92% | 984 2.91% | 922 2.76% | 891 2.71% | 1,712 2.66% |
| DAWN | 804 2.19% | 804 2.24% | ||||||||
| 理想科学工業 | 8,518 17.97% | 10,018 21.13% | ||||||||
| 計 | 26,038 54.93% | 27,459 57.92% | 18,131 49.4% | 17,949 50.13% | 17,898 51.56% | 17,978 51.8% | 18,825 55.8% | 18,740 56.1% | 18,297 55.7% | 36,413 56.78% |