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 | 2,566 17.5% | 2,566 17.5% | 2,566 17.5% | 2,566 17.5% | 2,566 17.6% | 2,566 17.6% | ||||
| 日本マスタートラスト信託銀行 | 4,146 2.42% | 325 1.9% | 434 2.97% | 569 3.9% | 631 4.3% | 747 5.1% | 1,400 9.6% | 1,252 8.6% | 1,304 8.9% | 1,472 10.1% |
| 合鐵取引先持株会 | 4,631 2.7% | 476 2.78% | 496 3.39% | 531 3.6% | 562 3.8% | 609 4.2% | 655 4.5% | 647 4.4% | 662 4.5% | 679 4.6% |
| 共英製鋼 | 5,144 3% | 514 3% | 514 3.52% | 514 3.5% | 514 3.5% | 514 3.5% | 514 3.5% | 514 3.5% | 514 3.5% | 514 3.5% |
| 日本カストディ銀行 | 418 2.9% | 337 2.3% | 462 3.2% | 365 2.5% | 348 2.4% | |||||
| みずほ銀行 | 3,279 1.91% | 327 1.91% | 327 2.24% | 327 2.2% | 327 2.2% | 327 2.2% | 327 2.2% | 270 1.8% | 270 1.8% | 270 1.8% |
| 東京鐵鋼 | 268 1.8% | 268 1.8% | 268 1.8% | 268 1.8% | 268 1.8% | |||||
| STATE STREET BANK AND TRUST COMPANY | 242 1.7% | 223 1.5% | ||||||||
| 日本生命保険相互会社 | 185 1.3% | 185 1.3% | ||||||||
| 合同製鐵グループ社員持株会 | 170 1.2% | |||||||||
| 三井物産 | 7,308 4.26% | 730 4.26% | 730 5% | 730 5% | 730 5% | 730 5% | 730 5% | 730 5% | 730 5% | |
| メタルワン | 6,779 3.95% | 339 1.98% | 339 2.32% | 339 2.3% | 339 2.3% | 339 2.3% | 339 2.3% | 339 2.3% | ||
| 阪和興業 | 205 1.4% | |||||||||
| DFA INTL SMALL CAP VALUE PORTFOLIO | 433 2.53% | 411 2.8% | 390 2.7% | 270 1.8% | 224 1.5% | |||||
| 日本トラスティ・サービス信託銀行 | 4,662 2.72% | 312 1.82% | 438 3% | 543 3.7% | 497 3.4% | |||||
| 新日鐵住金 | 25,669 14.97% | 2,566 14.97% | 2,566 17.54% | 2,566 17.5% | ||||||
| 角田 博 | 682 4.66% | |||||||||
| CBNY DFA INTL SMALL CAP VALUE PORTFOLIO | 4,360 2.54% | |||||||||
| 計 | 72,143 42.08% | 6,554 38.23% | 6,983 47.73% | 7,122 48.7% | 7,070 48.3% | 6,793 46.4% | 7,365 50.4% | 7,258 49.6% | 7,110 48.6% | 6,698 45.8% |