![John Mark Hemmann](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 Mark Hemmann
Directeur/Membre du Conseil chez
GRAND GROUP INVESTMENT PLC
Profil
John Mark Hemmann is the founder of Akkadian Investment Management LLC.
Mr. Hemmann is an Independent Non-Executive Director at Grand Group Investment Plc.
Former jobs include Director-Capital Markets at WestLB AG (London) and Independent Director at ESG, Inc. from 2024 to 2026.
Education includes undergraduate studies at Pomona College and graduate studies including an MBA at George Washington University.
Postes actifs de John Mark Hemmann
| Sociétés | Poste | Début |
|---|---|---|
| GRAND GROUP INVESTMENT PLC | Directeur/Membre du Conseil | - |
Anciens postes connus de John Mark Hemmann
| Sociétés | Poste | Fin |
|---|---|---|
| ESG INC. | Directeur/Membre du Conseil | 31/03/2026 |
Akkadian Investment Management LLC | Fondateur | - |
WestLB AG (London)
 WestLB AG (London) Investment Banks/BrokersFinance Provides brokerage services | Corporate Officer/Principal | - |
Formation de John Mark Hemmann
Expériences
Fonctions occupées
Actives
Inactives
Sociétés cotées
Entreprise privées
Relations
3
Relations au 1er degré
6
Entreprises liées au 1er degré
Homme
Femme
Administrateurs
Exécutifs
Sociétés liées
| Entreprise privées | 6 |
|---|---|
Pomona College
 Pomona College Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
George Washington University
 George Washington University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
WestLB AG (London)
WestLB AG (London) Investment Banks/BrokersFinance Provides brokerage services | Finance |
Grand Group Investment Plc
 Grand Group Investment Plc Investment ManagersFinance Identifies, acquires, and invests in small to medium-sized companies | Finance |
Akkadian Investment Management LLC | |
Plasma Innovative, Inc.
 Plasma Innovative, Inc. Packaged SoftwareTechnology Services Operates as a cold plasma application company | Technology Services |
