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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 第一生命保険 | 6,690 8.64% | 6,690 8.64% | 669 8.66% | 669 8.66% | 669 8.66% | 669 8.66% | 669 8.66% | 669 8.84% | 669 9% | 468 6.32% |
| 三井埠頭 | 348 4.7% | |||||||||
| デイ・シイ | 311 4.21% | |||||||||
| 朝日生命保険相互会社 | 2,667 3.44% | 2,667 3.44% | 266 3.45% | 266 3.45% | 266 3.45% | 266 3.45% | 266 3.45% | 266 3.52% | 266 3.58% | 266 3.6% |
| 東洋埠頭従業員持株会 | 174 2.3% | 196 2.64% | 218 2.94% | |||||||
| 篠川 宏明 | 190 2.46% | 196 2.59% | 208 2.79% | 215 2.9% | ||||||
| 明治安田生命保険相互会社 | 2,078 2.68% | 2,078 2.68% | 207 2.69% | 207 2.69% | 207 2.69% | 207 2.69% | 207 2.69% | 207 2.74% | 207 2.79% | 207 2.8% |
| 太陽生命保険 | 2,006 2.59% | 2,006 2.59% | 200 2.59% | 200 2.59% | 200 2.59% | 200 2.59% | 200 2.59% | 200 2.65% | 197 2.66% | 190 2.57% |
| 三菱UFJ銀行 | 342 4.44% | 342 4.44% | 342 4.44% | 342 4.44% | 342 4.53% | 342 4.61% | 188 2.54% | |||
| みずほ銀行 | 3,428 4.42% | 3,428 4.42% | 342 4.43% | 342 4.44% | 342 4.44% | 342 4.44% | 342 4.44% | 342 4.53% | 342 4.61% | 188 2.54% |
| 日本マスタートラスト信託銀行 | 179 2.32% | 233 3.02% | 285 3.7% | 368 4.77% | 686 8.89% | 521 6.88% | 263 3.54% | |||
| 芝海 | 1,621 2.09% | 1,621 2.09% | 162 2.18% | |||||||
| 東京海上日動火災保険 | 2,150 2.77% | 2,150 2.77% | 215 2.78% | 215 2.78% | 215 2.78% | 215 2.78% | 215 2.78% | 205 2.7% | ||
| 日本カストディ銀行 | 543 7.04% | 237 3.08% | ||||||||
| 山内 正義 | 1,861 2.4% | 179 2.32% | 178 2.31% | 170 2.2% | 169 2.2% | |||||
| 日本トラスティ・サービス信託銀行 | 4,444 5.74% | 5,093 6.58% | 510 6.6% | 498 6.45% | 488 6.32% | |||||
| 三菱東京UFJ銀行 | 3,428 4.42% | 3,428 4.42% | 342 4.43% | |||||||
| 渡邊倉庫 | 1,500 1.93% | |||||||||
| 計 | 30,374 39.24% | 30,662 39.61% | 3,113 40.32% | 3,154 40.85% | 3,188 41.3% | 3,326 43.09% | 3,359 43.51% | 3,126 41.31% | 2,857 38.44% | 2,603 35.18% |