Idemitsu Kosan
5019.TOil & Coal Products
Major holders (5%+) · 2
| Holder | Stake |
|---|---|
| Nissho Kosan Co., LTD. | 8.95% |
| Idemitsu Museum of Arts | 7.32% |
Each holder's own ratio from its most recent large-shareholding report.
Former and minor holders (below 5%) · 13
| Nomura Asset Management Co., Ltd. | 4.47% |
| Showa Kosan Co., Ltd. | 2.03% |
| Nikko Asset Management Co., Ltd. | 1.86% |
| Sumitomo Mitsui Trust Asset Management Co., Ltd. | 1.66% |
| ZEN Co., Ltd. | 1.46% |
| ENN Co., Ltd. | 1.44% |
| MI Power Co., Ltd. | 1.03% |
| Sumitomo Mitsui Trust Bank, Limited | 0.74% |
| Masakazu Idemitsu | 0.67% |
| Chieko Idemitsu | 0.39% |
| NOMURA INTERNATIONAL PLC | 0.07% |
| Nomura Securities Co., Ltd. | 0.04% |
| Aramco Overseas Company B.V. | 0.00% |
Ownership history · 72
| Holder | Ratio | Change |
|---|---|---|
| Nomura Securities Co., Ltd.2026-08-06 | 0.04% | -0.86pp |
| NOMURA INTERNATIONAL PLC2026-08-06 | 0.07% | +0.10pp |
| Nomura Asset Management Co., Ltd.2026-08-06 | 4.47% | -0.13pp |
| Chieko Idemitsu2026-06-09 | 0.39% | no change |
| MI Power Co., Ltd.2026-06-09 | 1.03% | +0.06pp |
| ENN Co., Ltd.2026-06-09 | 1.44% | +0.07pp |
| ZEN Co., Ltd.2026-06-09 | 1.46% | +0.08pp |
| Showa Kosan Co., Ltd.2026-06-09 | 2.03% | +0.10pp |
| Nissho Kosan Co., LTD.2026-06-09 | 8.95% | no change |
| Chieko Idemitsu2026-05-28 · amended | 0.39% | new |
| Nissho Kosan Co., LTD.2026-05-28 · amended | 8.95% | +0.45pp |
| MI Power Co., Ltd.2026-01-08 | 0.97% | no change |
| ENN Co., Ltd.2026-01-08 | 1.37% | no change |
| ZEN Co., Ltd.2026-01-08 | 1.38% | no change |
| Showa Kosan Co., Ltd.2026-01-08 | 1.93% | no change |
| Nissho Kosan Co., LTD.2026-01-08 | 8.50% | no change |
| MI Power Co., Ltd.2025-12-22 · amended | 0.97% | no change |
| ENN Co., Ltd.2025-12-22 · amended | 1.37% | +0.75pp |
| ZEN Co., Ltd.2025-12-22 · amended | 1.38% | +0.66pp |
| Showa Kosan Co., Ltd.2025-12-22 · amended | 1.93% | no change |
Each holder in 5% reports, joint holders included. Purpose is classified from the filed text.