JR

Johannes Risseeuw

Damstra Holdings Limited | Executive Chairman, Executive Director
Mr Risseeuw has experience in corporate strategy, governance, and M&A. Mr Risseeuwcareer includes senior roles at Shell Australia, Questus Energy, and Skilled Group Limited.

Companies and Roles

Company
Title
Tenure
Since
DTC
DTC
Damstra Holdings Limited
  • Executive Chairman
  • Executive Director
10yrs, 6mthApr 2016
SOP
SOP
Synertec Corporation Limited
  • Non-Executive Director
  • Non-Executive Chairman
1yrs, 11mthOct 2024
SDV
SDV
SciDev Ltd
  • Non-Executive Director
1yrs, 6mthApr 2025

Holdings

Company
Last Notice
Direct Shares
Indirect Shares
Options
Convertibles
SOP
SOP
Synertec Corporation Limited
30/06/262,426,2574,019,7004,000,000N/A
SDV
SDV
SciDev Ltd
29/04/26N/A250,000N/AN/A
DTC
DTC
Damstra Holdings Limited
26/02/24N/A19,417,9927,477,895N/A

Transactions

Company
Date
Type
Amount
Price
Value
Notes
SDV
SDV
SciDev Ltd
29/04/26
Buy
100,000$0.996$99,613On-market trade
SOP
SOP
Synertec Corporation Limited
10/04/26
Buy
176,257$0.029$5,111On-market trade
SOP
SOP
Synertec Corporation Limited
08/04/26
Buy
500,000$0.029$14,410On-market trade
SDV
SDV
SciDev Ltd
26/02/26
Buy
80,000$0.239$19,112On-market trade
SDV
SDV
SciDev Ltd
15/12/25
Buy
70,000$0.430$30,100On-market trade