![John Kostoyannis](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
Fortuna: 471 358 $ al 31/05/2026
John G.
Kostoyannis currently holds the positions of Independent Director at StealthGas, Inc. since 2010, Managing Director & Director at Allied Shipbrokinc, Inc. since 1991, Independent Director at Imperial Petroleum, Inc. since 2021, Independent Non-Executive Director at C3is, Inc. since 2023, and Member of the Hellenic Shipbrokers Association.
Mr. Kostoyannis completed undergraduate studies at London Guildhall University in 1988.
| Empresa | Fecha | Número de acciones | Valoración | Fecha de valoración |
|---|---|---|---|---|
STEALTHGAS INC. 0,11 % | 01/04/2026 | 41.796 ( 0,11 % ) | 383 687 $ | 31/05/2026 |
IMPERIAL PETROLEUM, INC. 0,04 % | 15/04/2026 | 15.969 ( 0,04 % ) | 81 602 $ | 31/05/2026 |
| 15/04/2026 | 235 ( 0,03 % ) | 6 069 $ | 31/05/2026 |
| Empresas | Cargo | Inicio |
|---|---|---|
| STEALTHGAS INC. | Director/Miembro de la Junta | 01/10/2010 |
| IMPERIAL PETROLEUM INC. | Director/Miembro de la Junta | 01/11/2021 |
| C3IS INC. | Director/Miembro de la Junta | 01/06/2023 |
Allied Shipbrokinc, Inc.
 Allied Shipbrokinc, Inc. Marine ShippingTransportation Provides deep sea freight transportation services | Director Ejecutivo | - |
Hellenic Shipbrokers Association | Corporate Officer/Principal | - |
Activas
Inactivas
Empresas cotizadas
Empresas privadas
Relaciones de 1er grado
Empresas vinculadas al 1er grado
Hombre
Mujer
Administradores
Ejecutivos
| Empresas privadas | 6 |
|---|---|
StealthGas, Inc.
 StealthGas, Inc. Marine ShippingTransportation Provides seaborne transportation services to LPG producers and users | Transportation |
London Guildhall University
 London Guildhall University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Allied Shipbrokinc, Inc.
Allied Shipbrokinc, Inc. Marine ShippingTransportation Provides deep sea freight transportation services | Transportation |
Hellenic Shipbrokers Association | |
Imperial Petroleum, Inc.
 Imperial Petroleum, Inc. Marine ShippingTransportation Provides international seaborne transportation services to oil producers, refineries and commodities traders | Transportation |
C3is, Inc.
 C3is, Inc. Marine ShippingTransportation Provides international seaborne transportation services | Transportation |
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