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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 東京中小企業投資育成 | 2,966 8.17% | 2,966 8.65% | 2,966 9.48% | 2,966 9.48% | 2,966 9.44% | 2,966 9.26% | 2,966 9.24% | 2,966 9.43% | 2,966 9.58% | 2,966 10.06% |
| 日本マスタートラスト信託銀行 | 1,202 3.31% | 1,288 3.76% | 1,181 3.78% | 1,365 4.36% | 847 2.7% | 910 2.84% | 2,630 8.19% | 2,537 8.06% | 2,440 7.88% | 2,411 8.17% |
| みずほ銀行 | 1,335 3.68% | 1,200 3.5% | 1,200 3.84% | 1,200 3.84% | 1,200 3.82% | 1,200 3.75% | 1,200 3.74% | 1,200 3.81% | 1,200 3.88% | 1,200 4.07% |
| 日本生命保険相互会社 | 969 2.67% | 969 2.83% | 969 3.1% | 969 3.1% | 969 3.09% | 969 3.03% | 969 3.02% | 969 3.08% | 969 3.13% | 969 3.29% |
| 川崎 景介 | 829 2.29% | 829 2.42% | 829 2.65% | 829 2.65% | 829 2.64% | 829 2.59% | 829 2.58% | 829 2.64% | 829 2.68% | 829 2.81% |
| オイレス東日本共栄会 | 677 1.87% | 674 1.97% | 646 2.06% | 642 2.05% | 689 2.19% | 709 2.21% | 753 2.35% | 776 2.47% | 807 2.61% | 812 2.75% |
| オイレス従業員持株会 | 708 1.95% | 580 1.69% | 556 1.77% | 590 1.84% | 650 2.03% | 702 2.23% | 707 2.29% | 727 2.47% | ||
| 川崎 景太 | 721 1.99% | 721 2.1% | 721 2.3% | 721 2.3% | 721 2.29% | 721 2.25% | 721 2.25% | 721 2.29% | 721 2.33% | 721 2.44% |
| 群栄化学工業 | 528 1.68% | 528 1.68% | 528 1.71% | 528 1.79% | ||||||
| 三菱UFJ銀行 | 567 1.81% | 567 1.81% | 567 1.77% | 567 1.8% | 387 1.25% | 387 1.31% | ||||
| 日本カストディ銀行 | 691 2.16% | 540 1.68% | ||||||||
| STATE STREET LONDON CARE OF STATE STREET BANK AND TRUST, BOSTON SSBTC A/C UK LONDON BRANCH CLIENTS- UNITED KINGDOM | 660 2.06% | |||||||||
| 日本トラスティ・サービス信託銀行 | 1,453 4% | 1,412 4.12% | 1,035 3.31% | 586 1.87% | ||||||
| NORTHERN TRUST CO. RE NVI01 | 762 2.22% | 784 2.5% | ||||||||
| 三菱東京UFJ銀行 | 567 1.81% | |||||||||
| RBC ISB S/A DUB NON RESIDENT -TREATY RATE- | 590 1.63% | |||||||||
| 計 | 11,453 31.55% | 11,401 33.26% | 10,901 34.83% | 10,897 34.81% | 9,876 31.43% | 10,250 31.98% | 11,829 36.84% | 11,798 37.49% | 11,558 37.34% | 11,554 39.16% |