大株主
| （単位：千株） | 2016/02 | 2017/02 | 2018/02 | 2019/02 | 2020/02 | 2021/02 | 2022/02 | 2023/02 | 2024/02 | 2025/02 |
|---|---|---|---|---|---|---|---|---|---|---|
| 東洋鉄工 | 3,619 25.11% | 3,704 25.7% | 367 25.49% | 367 28.95% | 367 28.36% | 367 28.36% | 367 28.36% | 367 28.36% | 367 28.36% | 367 28.36% |
| 太平洋セメント | 1,713 11.88% | 1,713 11.88% | 171 11.88% | 171 13.5% | 171 13.22% | 171 13.22% | 171 13.22% | 171 13.22% | 171 13.22% | 171 13.22% |
| トーヨーアサノ取引先持株会 | 18 1.31% | 25 1.97% | 35 2.71% | 46 3.61% | 58 4.51% | 71 5.54% | 78 6.08% | 88 6.85% | ||
| 静岡銀行 | 559 3.88% | 559 3.88% | 55 3.88% | 55 4.41% | 55 4.32% | 55 4.32% | 55 4.32% | 55 4.32% | 55 4.32% | 55 4.32% |
| 高周波熱錬 | 40 2.79% | 40 3.17% | 40 3.1% | 40 3.1% | 40 3.1% | 40 3.1% | 40 3.1% | 40 3.1% | ||
| 三京化成 | 27 2.08% | 27 2.08% | 27 2.08% | 27 2.08% | 27 2.08% | 27 2.08% | ||||
| 丸幸商事 | 25 1.93% | 25 1.93% | ||||||||
| 植松 昭子 | 431 2.99% | 431 2.99% | 29 2.02% | 24 1.9% | 24 1.86% | 24 1.86% | 24 1.86% | 24 1.86% | 24 1.86% | 24 1.86% |
| 鈴木 和見 | 10 0.77% | |||||||||
| 世良 彰裕 | 10 0.8% | |||||||||
| 皆見 重徳 | 10 0.83% | |||||||||
| 櫻田 美弥子 | 8 0.69% | |||||||||
| スルガ銀行 | 437 3.03% | 437 3.03% | 43 3.03% | 43 3.44% | 31 2.46% | 31 2.46% | 31 2.46% | 31 2.46% | ||
| 宇田 肇 | 140 0.97% | 158 1.09% | 14 1.13% | 21 1.65% | 23 1.78% | 23 1.81% | ||||
| 山本 忠男 | 23 1.79% | 18 1.44% | ||||||||
| 和田 克英 | 12 0.97% | 13 1.07% | ||||||||
| 大西貴利子 | 20 1.58% | |||||||||
| 日本証券金融 | 13 1.08% | |||||||||
| 第一生命保険 | 122 0.84% | 12 0.96% | ||||||||
| 齋藤 廣一 | 200 1.38% | 200 1.38% | 20 1.38% | |||||||
| SBI証券 | 15 1.04% | |||||||||
| 五十畑輝夫 | 158 1.09% | 158 1.09% | 15 1.09% | |||||||
| 楽天証券 | 171 1.18% | |||||||||
| 高橋 正弘 | 123 0.85% | |||||||||
| 植松 眞 | 171 1.18% | |||||||||
| 計 | 7,551 52.41% | 7,655 53.13% | 777 53.96% | 773 60.97% | 780 60.22% | 800 61.75% | 822 63.49% | 831 64.21% | 809 62.48% | 820 63.31% |