| Date | Title | |
|---|---|---|
| 27 Apr 2020 | Interim CFO announcement | |
| 23 Apr 2020 | Change of Director's Interest Notice | |
| 22 Apr 2020 | Sigma Board Announcement | |
| 09 Apr 2020 | Annual Review to shareholders | |
| 09 Apr 2020 | Annual Report to shareholders | |
| 09 Apr 2020 | Notice of Annual General Meeting/Proxy Form | |
| 01 Apr 2020 | Becoming a substantial holder | |
| 31 Mar 2020 | Change of Director's Interest Notice | |
| 30 Mar 2020 | Change of Director's Interest Notice | |
| 30 Mar 2020 | Appointment of Interim Chief Financial Officer |