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 | 567 2% | 787 2.8% | 1,007 3.7% | 1,445 5.4% | 2,314 8.6% | 2,416 9% | 2,631 9.8% | 3,020 11.2% | ||
| 公益財団法人原田記念財団 | 2,810 9.4% | 2,810 9.4% | 2,810 10.2% | 2,810 10.2% | 2,810 10.4% | 2,810 10.5% | 2,810 10.5% | 2,810 10.5% | 2,810 10.5% | 2,810 10.4% |
| 日本カストディ銀行 | 2,059 7.7% | 2,193 8.2% | 2,288 8.5% | 1,994 7.4% | 2,724 10.1% | |||||
| りそな銀行 | 1,286 4.3% | 1,286 4.3% | 1,286 4.7% | 1,286 4.7% | 1,286 4.8% | 1,286 4.8% | 1,286 4.8% | 1,286 4.8% | 1,286 4.8% | 1,286 4.8% |
| 三井住友銀行 | 1,266 4.2% | 1,266 4.2% | 1,266 4.6% | 1,266 4.6% | 1,266 4.7% | 1,266 4.7% | 1,266 4.7% | 1,266 4.7% | 1,266 4.7% | 970 3.6% |
| タクマ | 628 2.3% | 869 3.2% | 869 3.2% | 943 3.5% | 943 3.5% | |||||
| 酉島製作所従業員持株会 | 615 2.3% | 691 2.5% | 756 2.8% | 749 2.8% | 733 2.7% | |||||
| 第一生命保険 | 657 2.4% | 657 2.4% | ||||||||
| 栗本鐵工所 | 652 2.1% | 652 2.1% | 652 2.3% | 652 2.3% | 652 2.4% | 652 2.4% | 652 2.4% | 652 2.4% | 652 2.4% | 652 2.4% |
| 日阪製作所 | 619 2% | 619 2% | 619 2.2% | 619 2.2% | 619 2.3% | 619 2.3% | 619 2.3% | 619 2.3% | 619 2.3% | 619 2.3% |
| 三菱UFJ銀行 | 666 2.4% | 666 2.5% | 666 2.4% | 666 2.4% | 666 2.4% | |||||
| 日本トラスティ・サービス信託銀行 | 1,121 3.7% | 1,479 4.9% | 1,850 6.7% | 1,986 7.2% | 1,984 7.4% | |||||
| GOLDMAN,SACHS＆ CO.REG | 1,964 6.5% | 1,964 7.1% | 1,964 7.1% | 1,465 5.4% | ||||||
| THE BANK OF NEW YORK-JASDECT REATY ACCOUNT | 572 1.9% | 572 2% | 572 2% | 572 2.1% | ||||||
| 三菱東京UFJ銀行 | 1,266 4.2% | 1,060 3.5% | 966 3.5% | |||||||
| 三精テクノロジーズ | 551 1.8% | 551 1.8% | ||||||||
| GOLDMAN， SACHS ＆ CO． REG | 1,965 6.5% | |||||||||
| THE BANK OF NEW YORKーJASDECTREATY ACCOUNT | 565 1.8% | |||||||||
| 計 | 12,104 40.4% | 12,263 41% | 12,555 45.9% | 12,612 46% | 12,332 45.6% | 12,050 45.1% | 13,370 49.9% | 13,632 51% | 13,611 50.9% | 14,420 53.8% |