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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 日本製鉄 | 2,035 33.67% | 2,035 33.67% | 2,035 33.67% | 2,035 33.67% | 2,035 33.67% | 2,035 33.67% | ||||
| 伊藤忠丸紅鉄鋼 | 295 4.84% | 295 4.84% | 295 4.88% | 295 4.88% | 295 4.88% | 295 4.88% | 452 7.49% | 452 7.49% | 452 7.49% | 452 7.49% |
| 村岡克彦 | 203 3.34% | 203 3.34% | 243 4.03% | 264 4.38% | 362 6% | 342 5.66% | 232 3.84% | 227 3.77% | 272 4.51% | 275 4.56% |
| 日鉄物産 | 250 4.14% | 250 4.14% | 250 4.14% | 250 4.14% | 250 4.14% | 250 4.14% | ||||
| サンユウ従業員持株会 | 229 3.76% | 233 3.83% | 153 2.54% | 158 2.63% | 163 2.71% | 174 2.89% | 174 2.88% | 189 3.13% | 179 2.96% | 188 3.11% |
| 永田麻里 | 187 3.08% | 187 3.08% | 187 3.1% | 187 3.1% | 187 3.1% | 187 3.1% | 187 3.1% | 187 3.1% | 187 3.1% | 187 3.1% |
| 佐藤商事 | 180 2.96% | 180 2.96% | 180 2.98% | 180 2.98% | 180 2.98% | 180 2.98% | 180 2.98% | 180 2.98% | 180 2.98% | 180 2.98% |
| 柏木伸夫 | 135 2.23% | 135 2.23% | 135 2.25% | 135 2.25% | 135 2.25% | 135 2.25% | 135 2.25% | 135 2.25% | 135 2.25% | 135 2.25% |
| 高島庄二郎 | 90 1.5% | 90 1.5% | 90 1.5% | 90 1.5% | ||||||
| INTERACTIVE BROKERSLLC | 69 1.14% | |||||||||
| INTERACTIVE BROKERS LLC | 71 1.18% | |||||||||
| りそな銀行 | 110 1.81% | 110 1.82% | 110 1.82% | 110 1.82% | 110 1.82% | 110 1.82% | 110 1.82% | |||
| メタルワン | 315 5.17% | 315 5.17% | 315 5.21% | 315 5.21% | 315 5.21% | 315 5.21% | ||||
| 新日鐵住金 | 2,035 33.41% | 2,035 33.41% | 2,035 33.67% | 2,035 33.67% | ||||||
| 日鉄住金物産 | 250 4.1% | 250 4.1% | 250 4.14% | 250 4.14% | ||||||
| 日本証券金融 | 119 1.96% | |||||||||
| 計 | 3,950 64.86% | 3,945 64.77% | 3,905 64.61% | 3,931 65.05% | 4,035 66.76% | 4,025 66.6% | 3,848 63.67% | 3,859 63.85% | 3,854 63.77% | 3,864 63.94% |