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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 三菱重工業 | 1,990 31.31% | 1,990 31.31% | 398 31.38% | 398 31.38% | 398 31.38% | 1,990.1 31.38% | 1,990.1 31.38% | 1,990.1 31.31% | 1,990.1 31.27% | 1,990.1 31.22% |
| 菱友社員持株会 | 1,587 24.97% | 1,613 25.39% | 311.1 24.53% | 303.8 23.95% | 300 23.65% | 1,510.7 23.82% | 1,496 23.59% | 1,518.7 23.89% | 1,491.8 23.44% | 1,393.9 21.87% |
| 光通信 | 46.8 3.69% | 46.8 3.69% | 46.2 3.64% | 565 8.91% | 474.8 7.49% | 474.8 7.47% | 474.8 7.46% | 373.5 5.86% | ||
| 三菱電機 | 283 4.45% | 283 4.45% | 56.6 4.46% | 56.6 4.46% | 56.6 4.46% | 283 4.46% | 283 4.46% | 283 4.45% | 283 4.45% | 283 4.44% |
| 加藤 眞人 | 190 2.98% | 190 2.98% | 38 3% | 38 3% | 38 3% | 190 3% | 190 3% | 190 2.99% | 190 2.98% | 190 2.98% |
| 三菱UFJ銀行 | 31 2.44% | 31 2.44% | 155 2.44% | 155 2.44% | 155 2.44% | 155 2.44% | 155 2.43% | |||
| 石塚 文代 | 69 1.08% | 13.8 1.09% | 13.8 1.09% | 13.8 1.09% | 69 1.09% | 70 1.1% | 70 1.1% | 70 1.1% | 70 1.1% | |
| 日本マスタートラスト信託銀行 | 64.5 1.01% | |||||||||
| 明治安田生命保険相互会社 | 56.5 0.89% | 56.5 0.89% | 56.5 0.89% | 56.5 0.89% | 56.5 0.89% | |||||
| ダイヤモンドオフィスサービス | 56.5 0.89% | 56.5 0.89% | 56.5 0.89% | 56.5 0.89% | 56.5 0.89% | |||||
| エスアイエル | 95.3 1.5% | 95.3 1.5% | 88.6 1.39% | |||||||
| 東京海上日動火災保険 | 75 1.18% | 75 1.18% | 15 1.19% | 15 1.19% | 15 1.19% | 75.2 1.19% | 75.2 1.19% | |||
| ブロードピーク | 50.9 4.01% | 59.7 4.71% | ||||||||
| 吉田 知広 | 59 0.92% | 154 2.42% | 33.8 2.66% | 13.9 1.1% | ||||||
| 高本 俊一 | 16.4 1.29% | |||||||||
| 三菱東京UFJ銀行 | 155 2.43% | 155 2.43% | 31 2.44% | |||||||
| 稲葉 正作 | 25.4 2% | |||||||||
| 成川 武彦 | 58 0.91% | 82 1.29% | ||||||||
| 佐藤 宏樹 | 80 1.25% | |||||||||
| 三菱自動車工業 | 250 3.94% | |||||||||
| 岩塚 文代 | 69 1.08% | |||||||||
| 計 | 4,717 74.23% | 4,692 73.83% | 969.6 76.43% | 970.4 76.5% | 972.3 76.65% | 4,951 78.06% | 4,942.4 77.92% | 4,889.9 76.93% | 4,856.3 76.3% | 4,633 72.69% |