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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 古河電気工業 | 18,781 57.26% | 18,781 57.26% | 18,781 57.3% | 18,781.2 57.3% | 18,781.2 57.3% | 18,781.2 57.3% | 18,781.2 57.3% | 18,781.2 57.3% | 18,781.2 57.3% | 18,781.2 57.3% |
| 日本マスタートラスト信託銀行 | 230 0.7% | 409.3 1.25% | 620.8 1.89% | 495.8 1.51% | 1,328.3 4.05% | 1,570.7 4.79% | 1,588.1 4.85% | 1,765.4 5.39% | ||
| BNY GCM CLIENT ACCOUNT JPRD AC ISG | 201.4 0.61% | 1,298.7 3.96% | ||||||||
| JP JPMSE LUX RE UBS AG LONDON BRANCH EQ CO | 827.7 2.53% | |||||||||
| JP JPMSE LUX RE NOMURA INT PLC 1 EQ CO | 771.6 2.35% | |||||||||
| 古河電池取引先持株会 | 497 1.52% | 516 1.57% | 524 1.6% | 531 1.62% | 549 1.67% | 531.9 1.62% | 522.6 1.59% | 530.7 1.62% | 552.6 1.69% | 542.4 1.65% |
| NOMURA INTERNATIONAL PLC A／C JAPAN FLOW | 534.4 1.63% | |||||||||
| MSIP CLIENT SECURITIES | 377.7 1.15% | 379.9 1.16% | 488.4 1.49% | |||||||
| 朝日生命保険相互会社 | 352 1.07% | 352 1.07% | 352 1.07% | 352 1.07% | 352 1.07% | 352 1.07% | 352 1.07% | 352 1.07% | 352 1.07% | 352 1.07% |
| 日本カストディ銀行 | 219.5 0.67% | 299 0.91% | 474.8 1.45% | 314.7 0.96% | ||||||
| UBS AG LONDON A/C IPB SEGREGATED CLIENT ACCOUNT | 607 1.85% | 509 1.55% | 514 1.57% | 250 0.76% | ||||||
| 米原恭淳 | 208 0.63% | 196.2 0.6% | ||||||||
| SBI証券 | 164.5 0.5% | |||||||||
| 田中龍平 | 1,000 3.05% | 1,000 3.05% | ||||||||
| 林田郁夫 | 202 0.62% | |||||||||
| GOLDMAN SACHS INTERNATIONAL | 200.7 0.61% | |||||||||
| 米田明夫 | 246 0.75% | |||||||||
| NOMURA PB NOMINEES LIMITED OMNIBUS－MARGIN | 231.3 0.71% | |||||||||
| 東邦銀行 | 230 0.7% | 230 0.7% | 230 0.7% | 230 0.7% | 230 0.7% | 230 0.7% | ||||
| 東京海上日動火災保険 | 220 0.67% | 220 0.67% | 220 0.67% | 220 0.67% | ||||||
| 富士電機 | 220 0.67% | 220 0.67% | 220 0.67% | 220 0.67% | ||||||
| 米田 明夫 | 223 0.68% | 246 0.75% | ||||||||
| 損害保険ジャパン | 237 0.72% | |||||||||
| 日本トラスティ・サービス信託銀行 | 266 0.81% | 272 0.83% | 269.2 0.82% | 291.5 0.89% | ||||||
| 日野自動車 | 330 1.01% | 330 1.01% | 330 1.01% | 330 1.01% | 330 1.01% | |||||
| 損害保険ジャパン日本興亜 | 337 1.03% | 337 1.03% | 337 1.03% | 237 0.72% | 237 0.72% | |||||
| トヨタ自動車 | 550 1.68% | 550 1.68% | 550 1.68% | 550 1.68% | ||||||
| クレディ・スイス証券 | 483.1 1.47% | |||||||||
| 富士通 | 220 0.67% | 220 0.67% | ||||||||
| 日本トラスティ・サービス信託 銀行 | 289 0.88% | |||||||||
| 計 | 22,344 68.12% | 22,390 68.26% | 22,551 68.8% | 22,220.8 67.79% | 22,084.7 67.36% | 21,533.4 65.68% | 23,131.4 70.56% | 23,522 71.76% | 22,940.7 69.99% | 25,676.6 78.34% |