Oil & Gas Field Exploration Services
| Institution | Shares | Value | Ownership % | Change | Filing Date |
|---|---|---|---|---|---|
| GRACE & WHITE INC /NY | 702.9K | $4.0M | 2.26% | -76.2K | 2026-06-30 |
| RBF Capital, LLC | 423.8K | $2.0M | 1.36% | -- | 2026-06-30 |
| VANGUARD CAPITAL MANAGEMENT LLC | 156.9K | -- | 0.51% | +43.6K | 2026-06-30 |
| MARSHALL WACE, LLP | 86.8K | -- | 0.28% | +45.8K | 2026-06-30 |
| GEODE CAPITAL MANAGEMENT, LLC | 83.6K | -- | 0.27% | +2.5K | 2026-06-30 |
| Hillsdale Investment Management Inc. | 54.4K | -- | 0.18% | +20.0K | 2026-06-30 |
| US BANCORP \DE\ | 53.4K | -- | 0.17% | -- | 2026-06-30 |
| CITADEL ADVISORS LLC | 40.2K | -- | 0.13% | -6.3K | 2026-06-30 |
| PINNACLE ASSOCIATES LTD | 38.4K | -- | 0.12% | -2.0K | 2026-06-30 |
| GSA CAPITAL PARTNERS LLP | 35.2K | -- | 0.11% | +5.9K | 2026-06-30 |