大株主
| （単位：千株） | 2015/12 | 2016/12 | 2017/12 | 2018/12 | 2019/12 | 2020/12 | 2021/12 | 2022/12 | 2023/12 | 2024/12 |
|---|---|---|---|---|---|---|---|---|---|---|
| カネカ | 829 6.6% | 829 6.6% | 829 6.6% | 829 6.61% | 829 6.8% | 829 6.8% | 829 6.8% | 829 6.8% | 829 6.8% | 829 6.8% |
| 日本生命保険相互会社 | 608 4.84% | 608 4.84% | 608 4.84% | 608 4.85% | 608 4.99% | 608 4.99% | 608 4.99% | 608 4.99% | 608 4.99% | 608 4.99% |
| 住友電気工業 | 550 4.38% | 550 4.38% | 550 4.38% | 550 4.39% | 550 4.51% | 550 4.51% | 550 4.51% | 550 4.51% | 550 4.51% | 550 4.51% |
| 三菱UFJ銀行 | 517 4.13% | 517 4.25% | 517 4.25% | 517 4.25% | 517 4.25% | 517 4.25% | 517 4.25% | |||
| オーナンバ取引先持株会 | 490 3.91% | 529 4.22% | 553 4.41% | 357 2.85% | 393 3.23% | 427 3.5% | 440 3.61% | 470 3.86% | 473 3.88% | 485 3.98% |
| 南都銀行 | 480 3.82% | 480 3.82% | 480 3.82% | 480 3.83% | 480 3.94% | 480 3.94% | 480 3.94% | 480 3.94% | 480 3.94% | 480 3.94% |
| 小野哲夫 | 398 3.17% | 400 3.19% | 401 3.2% | 402 3.2% | 404 3.32% | 404 3.32% | 404 3.32% | 404 3.32% | 404 3.32% | 404 3.32% |
| 三井住友銀行 | 391 3.11% | 391 3.11% | 391 3.11% | 391 3.12% | 391 3.21% | 391 3.21% | 391 3.21% | 391 3.21% | 391 3.21% | 391 3.21% |
| デンキョーグループホールディングス | 368 3.02% | 368 3.02% | 368 3.02% | |||||||
| 泉州電業 | 353 2.9% | 353 2.9% | 353 2.9% | 353 2.9% | 353 2.9% | |||||
| 日本カストディ銀行 | 551 4.52% | |||||||||
| 電響社 | 368 2.93% | 368 2.93% | 368 2.93% | 368 2.94% | 368 3.02% | 368 3.02% | 368 3.02% | |||
| 日本モレックス | 450 3.58% | 450 3.58% | 450 3.58% | 450 3.59% | ||||||
| 三菱東京UFJ銀行 | 517 4.12% | 517 4.12% | 517 4.12% | |||||||
| 計 | 5,083 40.48% | 5,123 40.8% | 5,149 41% | 4,954 39.52% | 4,894 40.16% | 4,928 40.44% | 4,942 40.55% | 4,972 40.8% | 5,172 42.45% | 4,986 40.92% |