IMO 9336402
The vessel GRIMSTAD was selected as Vessel Spotlight due to its ranking of #20 among 3,201 monitored vessels, with key 90-day metrics including 75 loiter events and 240 zone dwell events. The top operating zones included the Norwegian Sea Surveillance Zone, Malta/Hurd's Bank STS Zone, and the Central Atlantic Monitoring Zone. The vessel was detected in the vicinity of terminal zones, but no direct terminal visits were recorded during this period. These metrics are based on AIS-derived behavioral indicators.
Vessel information
Movement & AIS Track
The vessel GRIMSTAD was detected in the Norwegian Sea Surveillance Zone (155 events) and the Malta/Hurd's Bank STS Zone (139 events) most frequently, with zone dwell and loitering events recorded in both areas. Additionally, the vessel was detected in the vicinity of the discovered_019 zone (136 events) and several other zones with fewer events. No direct terminal visits were recorded during this period, and there were no terminal zone detections.
| Zone | Events | Types | First Seen | Last Seen |
|---|---|---|---|---|
| Norwegian Sea Surveillance Zone | 155 | zone_dwell: 80, loiter: 75 | Jun 21, 2026 | Aug 1, 2026 |
| Malta/Hurd's Bank STS Zone | 139 | zone_dwell: 80, loiter: 59 | Mar 19, 2026 | Jul 18, 2026 |
| discovered_019 | 136 | zone_dwell: 77, loiter: 59 | Mar 19, 2026 | Mar 31, 2026 |
| Central Atlantic Monitoring Zone | 19 | zone_dwell: 19 | May 18, 2026 | Jul 10, 2026 |
| Strait of Gibraltar Surveillance Zone | 18 | zone_dwell: 18 | Apr 18, 2026 | May 16, 2026 |
| Southern Öresund Surveillance Zone | 15 | zone_dwell: 15 | Jul 7, 2026 | Jul 9, 2026 |
| Barents Sea Surveillance Zone | 11 | zone_dwell: 11 | Jun 12, 2026 | Jun 17, 2026 |
| Ceuta/Gibraltar STS Zone | 10 | zone_dwell: 10 | Jul 7, 2026 | Jul 9, 2026 |
| Unknown Maritime Surveillance Zone | 9 | zone_dwell: 9 | May 20, 2026 | Jul 25, 2026 |
| discovered_002 | 9 | zone_dwell: 9 | May 21, 2026 | Jun 12, 2026 |
| Danish Straits/Skagerrak | 8 | zone_dwell: 8 | Jul 28, 2026 | Jul 28, 2026 |
| Central Mediterranean Monitoring Zone | 8 | zone_dwell: 8 | May 17, 2026 | Jun 21, 2026 |
| Southern Öresund Monitoring Zone | 7 | zone_dwell: 7 | Jun 20, 2026 | Jul 25, 2026 |
| Northwest Iberian Sea Monitoring Zone | 7 | zone_dwell: 7 | Jun 18, 2026 | Jun 18, 2026 |
| Malacca Strait Sanctioned Vessel Zone | 6 | zone_dwell: 6 | Jul 25, 2026 | Jul 26, 2026 |
Ownership & Management
GRIMSTAD SHIPPING CO LTD appears to be the vessel-owning or vessel-holding entity associated with the tanker GRIMSTAD, which is managed by World Tankers Management Pte Ltd in Singapore. Publicly available sources tie the vessel to a Singapore-based tanker management platform founded by the Haji-Ioannou family and focused on tanker ship management.
⚠ Red Flags
- Corporate structure for GRIMSTAD SHIPPING CO LTD is not publicly clear
- The company is linked to a single vessel name in available sources, limiting transparency
- Address is tied to a ship-management office that may host multiple maritime entities
World Tankers Management Pte Ltd is a Singapore-based tanker ship-management company established in 1993 and associated with the Haji-Ioannou family. Public sources describe it as providing commercial, technical, and ISM management for tanker vessels, with a focus on product/chemical tanker operations.
⚠ Red Flags
- Address appears to be a shared office location used by maritime companies
- Public sources show minor address variation between #10-308 and #10-313 at the same building
- Fleet data is inconsistent across sources, with some listing 14 vessels and others describing smaller subsets
Media Mentions
- GRIMSTAD, Crude Oil Tanker - IMO 9336402 - VesselFinderVesselFinder
- GRIMSTAD - Tanker / Aframax (LR 2) - Maritime OptimaMaritime Optima
- GRIMSTAD - Crude Oil Tanker (IMO: 9336402, MMSI: 309518000)MyShipTracking
- GRIMSTAD Crude Oil Tanker, IMO 9336402, MMSI 309518000, Call Sign C6WG9Maritime Database
- Grimstad - Vessels | GardGard
- GRIMSTAD Tanker (MMSI: 309518000, IMO: 9336402)Ships25
- GRIMSTAD, Crude oil tanker, IMO 9336402 | Vessel detailsBalticShipping
- GRIMSTAD Tanker Ship - IMO 9336402 / MMSI 309518000MagicPort
- GRIMSTAD imo: 9336402 mmsi: 309518000Boat-Agent
- Grimstad - Tankship, IMO 9336402, MMSI 309518000VesselTracker
- Find vessel Grimstad, IMO: 9336402 MMSIShipinfo.net
- GRIMSTAD Current Position IMO 9336402, Crude Oil TankerMarineVesselTraffic
Classification & Safety
Disclaimer
This vessel profile is compiled from publicly available information sources including maritime databases, government sanctions lists, and AIS position data. Information may be incomplete, delayed, or contain inaccuracies.
This content is for informational purposes only and does not constitute legal, financial, or compliance advice. FleetLeaks makes no warranties regarding the accuracy or completeness of the information presented. Users should independently verify all information before making decisions.
Data Scope & Currency
This dossier reflects automated analysis of publicly available data sources as of August 20, 2026 (UTC). FleetLeaks does not assert intent or wrongdoing. Observations are derived from AIS behavioral signals, registry records, and other open sources, each subject to inherent latency and reporting limitations.
Data Refresh
This dossier can be re-generated using the same automated pipeline with the most current available data. A refresh re-executes the standard selection, enrichment, and analysis process and does not alter methodology or thresholds. To request a refreshed version of this dossier, please contact us. A nominal fee may apply to cover compute and data access costs.
Generated: 2026-08-20T10:02:03.636164Z