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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 三菱電機 | 812 23.2% | 812 23.2% | 812 23.21% | 812 23.21% | 812 23.21% | 812 23.21% | 812 23.21% | 812 23.21% | 812 23.21% | 812 23.21% |
| ニシオカ | 800 22.87% | 800 22.87% | 800 22.87% | 800 22.87% | 800 22.87% | |||||
| 西菱電機従業員持株会 | 136.2 3.89% | 119.1 3.4% | 129.3 3.69% | 143.5 4.1% | 149.1 4.26% | 164.9 4.71% | 170.9 4.88% | 182.7 5.22% | 188.1 5.38% | 193 5.52% |
| コンセプト | 60 1.71% | 70 2% | 90 2.57% | 136.3 3.89% | 157 4.48% | 178.5 5.1% | 180 5.15% | 180 5.15% | 180 5.15% | |
| 西岡 伸明 | 614 17.54% | 614 17.54% | 614 17.55% | 614 17.55% | 614 17.55% | 94 2.68% | 94 2.68% | 104 2.97% | 104 2.97% | 104 2.97% |
| 海山 智 | 41.1 1.17% | 81 2.31% | 84 2.4% | 84 2.4% | 84 2.4% | 84 2.4% | ||||
| 西井 希伊 | 43.8 1.25% | 48 1.37% | 49.4 1.41% | |||||||
| 三菱UFJ銀行 | 83 2.37% | 83 2.37% | 83 2.37% | 80.8 2.31% | 68.3 1.95% | 48 1.37% | 48 1.37% | |||
| 三井住友銀行 | 48 1.37% | 48 1.37% | 48 1.37% | 48 1.37% | 48 1.37% | 48 1.37% | 48 1.37% | 48 1.37% | 48 1.37% | 48 1.37% |
| アトム電子 | 42 1.2% | 43.9 1.25% | ||||||||
| 吉田 政功 | 43.3 1.23% | 44.7 1.27% | 43.9 1.25% | 45.7 1.3% | 46.6 1.33% | 46.7 1.33% | ||||
| 三菱UFJ信託銀行 | 59 1.68% | 59 1.68% | 59 1.68% | 59 1.68% | 59 1.68% | 59 1.68% | 54.3 1.55% | |||
| 西岡 孝 | 280 8% | 280 8% | 280 8% | 280 8% | 280 8% | |||||
| 松井証券 | 46.3 1.32% | |||||||||
| 三菱東京UFJ銀行 | 83 2.37% | 83 2.37% | 83 2.37% | |||||||
| 秦 康明 | 41 1.17% | 41 1.17% | 41 1.17% | |||||||
| 後呂 勝博 | 40 1.14% | 40 1.14% | ||||||||
| 西岡 迪子 | 34 0.97% | |||||||||
| 計 | 2,147.2 61.35% | 2,156.1 61.6% | 2,179.6 62.3% | 2,215.3 63.33% | 2,271.6 64.94% | 2,344.6 67.02% | 2,369.1 67.72% | 2,369.5 67.74% | 2,354.1 67.3% | 2,362.3 67.53% |