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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 日本マスタートラスト信託銀行 | 1,792 2.63% | 1,678 2.53% | 3,318 5.08% | 4,071 6.24% | 3,195 5.12% | 3,503 5.62% | 7,231 11.59% | 6,693 10.73% | 6,527 10.47% | 7,046 11.3% |
| 富国生命保険相互会社 | 4,793 7.02% | 4,793 7.23% | 4,793 7.34% | 4,793 7.34% | 4,793 7.68% | 4,793 7.68% | 4,793 7.68% | 4,793 7.68% | 4,793 7.68% | 4,793 7.68% |
| 日本信号グループ社員持株会 | 3,197 4.68% | 3,397 5.12% | 3,483 5.34% | 3,645 5.58% | 3,587 5.75% | 3,816 6.12% | 4,003 6.42% | 4,027 6.46% | 4,056 6.5% | 4,106 6.58% |
| 日本信号取引先持株会 | 2,833 4.15% | 2,847 4.29% | 2,962 4.54% | 3,035 4.65% | 3,106 4.98% | 3,105 4.98% | 3,191 5.12% | 3,285 5.27% | 3,338 5.35% | 3,403 5.46% |
| みずほ銀行 | 2,640 3.87% | 2,200 3.32% | 2,200 3.37% | 2,200 3.37% | 2,200 3.53% | 2,200 3.53% | 2,200 3.53% | 2,200 3.53% | 2,200 3.53% | 2,200 3.53% |
| 西日本旅客鉄道 | 2,050 3.09% | 2,050 3.14% | 2,050 3.14% | 2,050 3.29% | 2,050 3.29% | 2,050 3.29% | 2,050 3.29% | 2,050 3.29% | 2,050 3.29% | |
| GOVERNMENT OF NORWAY | 1,527 2.34% | 1,785 2.86% | 1,418 2.27% | 1,855 2.98% | 1,828 2.93% | 1,802 2.89% | ||||
| 日本カストディ銀行 | 1,500 2.41% | 1,738 2.79% | 1,988 3.19% | 1,486 2.38% | 1,593 2.55% | |||||
| 三菱UFJ銀行 | 1,372 2.1% | 1,372 2.2% | 1,372 2.2% | 1,372 2.2% | 1,372 2.2% | 1,372 2.2% | 1,372 2.2% | |||
| 東海旅客鉄道 | 902 1.45% | |||||||||
| あいおいニッセイ同和損害保険 | 1,334 2.01% | 1,334 2.04% | 1,334 2.04% | 1,334 2.14% | 1,334 2.14% | 1,334 2.14% | 1,334 2.14% | 1,214 1.95% | ||
| 第一生命保険 | 1,200 1.84% | 1,200 1.92% | ||||||||
| 日本トラスティ・サービス信託銀行 | 2,328 3.41% | 1,266 1.91% | 2,369 3.63% | 3,212 4.92% | 2,768 4.44% | |||||
| 三菱東京UFJ銀行 | 1,372 2.07% | 1,372 2.1% | ||||||||
| J.P. MORGAN BANK LUXEMBOURG S.A. | 1,898 2.78% | |||||||||
| みずほ信託銀行 | 1,517 2.22% | |||||||||
| 資産管理サービス信託銀行 | 1,422 2.08% | |||||||||
| 計 | 25,864 37.88% | 23,042 34.75% | 25,085 38.42% | 27,241 41.73% | 26,194 42% | 25,095 40.24% | 29,115 46.68% | 29,602 47.46% | 28,867 46.28% | 29,270 46.93% |