![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>)
John Kostoyannis
Directeur/Membre du Conseil chez
STEALTHGAS INC.
Fortune : 471 358 $ au 31/05/2026
Profil
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.
Détentions connues dans des sociétés publiques
| Société | Date | Nombre d'actions | Valorisation | Date de valorisation |
|---|---|---|---|---|
STEALTHGAS INC. 0,11% | 01/04/2026 | 41 796 ( 0,11% ) | 383 687 $ | 31/05/2026 |
| 15/04/2026 | 15 969 ( 0,04% ) | 81 602 $ | 31/05/2026 | |
| 15/04/2026 | 235 ( 0,03% ) | 6 069 $ | 31/05/2026 |
Postes actifs de John Kostoyannis
| Sociétés | Poste | Début |
|---|---|---|
| STEALTHGAS INC. | Directeur/Membre du Conseil | 01/10/2010 |
| IMPERIAL PETROLEUM INC. | Directeur/Membre du Conseil | 01/11/2021 |
| C3IS INC. | Directeur/Membre du Conseil | 01/06/2023 |
Allied Shipbrokinc, Inc.
 Allied Shipbrokinc, Inc. Marine ShippingTransportation Provides deep sea freight transportation services | Directeur Général | - |
Hellenic Shipbrokers Association | Corporate Officer/Principal | - |
Formation de John Kostoyannis
Expériences
Fonctions occupées
Actives
Inactives
Sociétés cotées
Entreprise privées
Relations
16
Relations au 1er degré
6
Entreprises liées au 1er degré
Homme
Femme
Administrateurs
Exécutifs
Sociétés liées
| Entreprise privées | 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 |
