大株主
| （単位：千株） | 2015/12 | 2016/12 | 2017/12 | 2018/12 | 2019/12 | 2020/12 | 2021/12 | 2022/12 | 2023/12 | 2024/12 |
|---|---|---|---|---|---|---|---|---|---|---|
| トルク | 5,293 10.86% | 5,386 11.18% | 5,386 11.45% | 5,386 11.59% | 5,386 11.57% | |||||
| 日本マスタートラスト信託銀行 | 1,822 3.38% | 1,271 2.36% | 1,707 3.17% | 2,456 4.92% | 2,023 4.05% | 1,716 3.52% | 4,831 10.03% | 3,983 8.47% | 4,162 8.96% | 4,612 9.91% |
| みずほ銀行 | 2,547 4.73% | 2,490 4.63% | 2,490 4.63% | 2,490 4.98% | 2,490 4.98% | 2,435 4.99% | 2,428 5.04% | 2,360 5.02% | 2,311 4.97% | 2,311 4.96% |
| 三菱UFJ銀行 | 2,165 4.33% | 2,165 4.33% | 2,165 4.44% | 2,165 4.49% | 2,165 4.6% | 2,165 4.66% | 2,165 4.65% | |||
| 日本生命保険相互会社 | 1,388 2.58% | 1,388 2.58% | 1,388 2.58% | 1,388 2.78% | 1,388 2.78% | 1,388 2.84% | 1,388 2.88% | 1,388 2.95% | 1,388 2.98% | 1,388 2.98% |
| 日本カストディ銀行 | 1,237 2.53% | 1,534 3.18% | 1,410 2.99% | 1,423 3.06% | 1,332 2.86% | |||||
| 岡部 和子 | 1,004 1.86% | 1,004 1.86% | 1,004 1.86% | 1,004 2.01% | 1,004 2.01% | 1,004 2.06% | 1,004 2.08% | 1,004 2.13% | 1,004 2.16% | 1,004 2.15% |
| 第一生命保険 | 870 1.61% | 870 1.61% | 870 1.61% | 870 1.74% | 870 1.74% | 870 1.78% | 870 1.8% | 870 1.85% | 870 1.87% | 870 1.87% |
| 岡部協力会社持株会 | 756 1.55% | 744 1.54% | 701 1.49% | 731 1.57% | 704 1.51% | |||||
| 岡部特約店持株会 | 638 1.37% | 678 1.45% | ||||||||
| エムエム建材 | 600 1.24% | 600 1.27% | ||||||||
| SMBC日興証券 | 1,014 2.08% | |||||||||
| 小林産業 | 5,421 10.07% | 5,293 9.84% | 5,293 9.84% | 5,293 10.6% | 5,293 10.6% | |||||
| 日本トラスティ・サービス信託銀行 | 978 1.81% | 850 1.58% | 1,580 2.93% | 902 1.8% | 943 1.88% | |||||
| GOVERNMENT OF NORWAY | 876 1.63% | 894 1.79% | 882 1.76% | |||||||
| 三菱東京UFJ銀行 | 2,165 4.02% | 2,165 4.02% | 2,165 4.02% | |||||||
| 東京海上日動火災保険 | 909 1.69% | 909 1.69% | 909 1.69% | |||||||
| NORTHERN TRUST CO. RE-HCR00 | 828 1.54% | |||||||||
| 計 | 17,936 33.34% | 17,315 32.19% | 18,286 33.99% | 18,659 37.37% | 18,331 36.71% | 17,883 36.69% | 20,953 43.52% | 19,871 42.26% | 20,082 43.23% | 20,455 43.97% |