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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 日本基礎技術取引先持株会 | 1,812 5.87% | 1,964 6.37% | 2,081 7.6% | 2,197 8.17% | 2,372 9.01% | 2,493 10.53% | 2,485 11.62% | 2,585 12.92% | 2,683 13.39% | 2,693 13.98% |
| 日本国土開発 | 1,032 3.35% | 1,032 3.35% | 1,032 3.77% | 1,032 3.84% | 1,032 3.92% | 1,032 4.36% | 1,032 4.82% | 1,032 5.16% | 1,032 5.15% | 1,032 5.36% |
| りそな銀行 | 771 2.5% | 771 2.5% | 771 2.81% | 771 2.87% | 771 2.93% | 771 3.25% | 771 3.6% | 771 3.85% | 771 3.85% | 771 4% |
| 日本基礎技術従業員持株会 | 762 2.47% | 778 2.52% | 797 2.91% | 816 3.04% | 835 3.17% | 863 3.65% | 835 3.9% | 829 4.14% | 838 4.19% | 769 3.99% |
| 北陸銀行 | 746 2.42% | 746 2.42% | 746 2.72% | 746 2.77% | 746 2.83% | 746 3.15% | 746 3.48% | 746 3.73% | 746 3.72% | 746 3.87% |
| 東陽商事 | 634 2.06% | 634 2.06% | 634 2.31% | 684 2.55% | 684 2.6% | 684 2.89% | 684 3.2% | 684 3.42% | 684 3.42% | 684 3.55% |
| 日本生命保険相互会社 | 507 1.65% | 507 1.65% | 507 1.85% | 507 1.89% | 507 1.93% | 507 2.14% | 507 2.37% | 507 2.54% | 507 2.53% | 507 2.63% |
| 前川 貞夫 | 387 1.81% | 387 1.94% | 387 1.93% | 387 2.01% | ||||||
| 丸全昭和運輸 | 346 1.8% | |||||||||
| 三菱UFJ信託銀行 | 346 1.46% | 346 1.73% | 346 1.73% | 346 1.8% | ||||||
| 日本マスタートラスト信託銀行 | 954 3.09% | 1,373 4.45% | 1,904 6.95% | 2,376 8.83% | 2,074 7.88% | 1,428 6.03% | 2,037 9.52% | 1,069 5.34% | 612 3.06% | |
| 日本カストディ銀行 | 594 2.51% | 460 2.15% | ||||||||
| 日本トラスティ・サービス信託銀行 | 1,117 3.62% | 648 2.1% | 477 1.74% | 487 1.81% | 450 1.71% | |||||
| 日本基礎技術 | 2,589 8.4% | 2,590 8.4% | ||||||||
| 計 | 10,927 35.43% | 11,046 35.81% | 9,566 34.96% | 10,324 38.38% | 10,309 39.14% | 9,469 40% | 9,947 46.47% | 8,959 44.77% | 8,610 42.97% | 8,284 42.99% |