As of 30 Sep 2025, 1 institutional investors reported holding 2,096,762 shares of Idemitsu Kosan Co Ltd - Common Stock - Foreign.
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q3 | 2,096,762 | $14,405,181 | +$458,648 | $6.87 | 1 |
| 2025 Q2 | 2,030,003 | $12,334,659 | +$1,420,944 | $6.08 | 1 |
| 2025 Q1 | 1,796,149 | $12,609,807 | -$855,602 | $7.02 | 1 |
| 2024 Q4 | 1,918,021 | $12,622,649 | +$12,622,688 | $6.58 | 1 |
| 2023 Q3 | 0 | $0 | -$37,201 | $6.87 | 0 |
| 2023 Q2 | 1,860 | $37,201 | +$2,160 | $20.00 | 1 |
| 2023 Q1 | 1,752 | $38,266 | +$1,179 | $21.84 | 1 |
| 2022 Q4 | 1,698 | $39,720 | +$39,720 | $23.39 | 1 |