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 | 14,612 8.26% | 15,471 8.74% | 16,780 9.91% | 19,974 11.8% | 20,732 12.24% | 22,936 13.54% | 35,530 20.96% | 33,516 19.76% | 30,898 18.22% | 31,467 18.55% |
| 日本カストディ銀行 | 2,741 1.62% | 12,494 7.37% | 13,349 7.87% | 12,526 7.38% | 16,561 9.76% | |||||
| 明治安田生命保険相互会社 | 10,358 5.85% | 10,358 5.85% | 10,358 6.12% | 10,358 6.12% | 10,358 6.12% | 10,358 6.11% | 10,358 6.11% | 10,358 6.11% | 10,358 6.11% | 10,358 6.11% |
| 日本生命保険相互会社 | 5,393 3.05% | 5,393 3.05% | 4,314 2.55% | 5,393 3.19% | 5,393 3.18% | 5,393 3.18% | 5,393 3.18% | 5,393 3.18% | 5,393 3.18% | 5,393 3.18% |
| 野村信託銀行 | 2,974 1.68% | 2,911 1.65% | 2,737 1.62% | 2,865 1.69% | 2,667 1.57% | 2,658 1.57% | 3,356 1.98% | |||
| TOTO持株会 | 2,467 1.39% | 2,577 1.52% | 2,805 1.65% | 3,022 1.78% | 3,214 1.89% | |||||
| 三菱UFJ銀行 | 3,087 1.82% | 3,087 1.82% | 3,087 1.82% | 3,087 1.82% | 3,087 1.82% | 3,087 1.82% | 3,087 1.82% | |||
| STATE STREET BANK AND TRUST COMPANY | 4,114 2.32% | 4,469 2.64% | 4,686 2.77% | 4,321 2.55% | 3,038 1.79% | |||||
| 日本特殊陶業 | 2,547 1.44% | 2,547 1.5% | 2,229 1.31% | 1,910 1.13% | ||||||
| JP MORGAN CHASE BANK | 1,899 1.12% | |||||||||
| STATE STREET BANK WEST CLIENT － TREATY | 2,636 1.55% | 2,696 1.59% | ||||||||
| 日本碍子 | 2,071 1.22% | |||||||||
| 積水ハウス | 2,671 1.51% | 2,671 1.51% | 2,671 1.58% | 2,671 1.58% | 2,671 1.58% | 2,671 1.58% | ||||
| THE BANK OF NEW YORK MELLON LIMITED | 2,784 1.64% | 2,750 1.62% | 2,533 1.49% | |||||||
| BBH FOR FIDELITY CONTRAFUND | 2,889 1.71% | 2,851 1.68% | 3,290 1.94% | 3,120 1.84% | ||||||
| 日本トラスティ・サービス信託銀行 | 10,600 5.99% | 2,826 1.6% | 2,769 1.64% | 2,919 1.72% | 2,911 1.72% | |||||
| 三菱東京UFJ銀行 | 3,087 1.74% | 3,087 1.74% | 3,087 1.82% | |||||||
| TOTO | 7,838 4.43% | 7,828 4.42% | ||||||||
| 計 | 62,552 35.34% | 65,577 37.05% | 62,036 36.65% | 65,309 38.57% | 67,275 39.72% | 68,113 40.2% | 80,650 47.57% | 78,899 46.52% | 74,942 44.18% | 80,288 47.32% |