![John Barker](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>)
Net worth: 968 494 $ as of 29/06/2026
John Robert Mark Barker is Non-Executive Chairman at Gana Media Group Plc since 2024 and Secretary & Director at Ridgecrest Plc since 2024.
Former roles include Chief Executive Officer & Head-International at Liquidnet Europe Ltd., Chairman at Phoenix Games Network Ltd., and Non-Executive Director at Percentile Ltd.
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 19/03/2026 | 417,454,515 ( 2.3% ) | 968 494 $ | 29/06/2026 |
| Companies | Position | Start |
|---|---|---|
| GANA MEDIA GROUP PLC | Chairman | 01/09/2024 |
| RIDGECREST PLC | Director/Board Member | 08/05/2024 |
| Companies | Position | End |
|---|---|---|
Percentile Ltd.
 Percentile Ltd. Packaged SoftwareTechnology Services Provides cloud-based risk and compliance technology services | Director/Board Member | - |
Liquidnet Europe Ltd.
 Liquidnet Europe Ltd. Investment ManagersFinance Provides investment services | Chief Executive Officer | - |
Phoenix Games Network Ltd.
 Phoenix Games Network Ltd. Information Technology ServicesTechnology Services Provides information technology services | Chairman | - |
Active
Inactive
Listed companies
Private companies
| Private companies | 5 |
|---|---|
Gana Media Group Plc
 Gana Media Group Plc Internet RetailRetail Trade Sells mobile devices and content through online and provides data insight and intelligence platform services | Retail Trade |
Liquidnet Europe Ltd.
Liquidnet Europe Ltd. Investment ManagersFinance Provides investment services | Finance |
Ridgecrest Plc
 Ridgecrest Plc Personnel ServicesCommercial Services Provides recruitment and staffing consulting services | Commercial Services |
Percentile Ltd.
Percentile Ltd. Packaged SoftwareTechnology Services Provides cloud-based risk and compliance technology services | Technology Services |
Phoenix Games Network Ltd.
Phoenix Games Network Ltd. Information Technology ServicesTechnology Services Provides information technology services | Technology Services |
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