| 09/10/2020 | 09:10 | ZDP Share Buy-Back Programme | |
| 30/09/2020 | 15:09 | Interim Results | |
| 06/08/2020 | 16:08 | TR1: Notification of Major Holdings | |
| 03/07/2020 | 12:07 | TR-1: Notification of Major Holdings | |
| 25/06/2020 | 07:06 | Transaction in Own Shares & Total Voting Rights | |
| 17/06/2020 | 07:06 | Transaction in Own Shares & Total Voting Rights | |
| 12/05/2020 | 13:05 | Results of Annual General Meeting | |
| 07/05/2020 | 08:05 | TR-1: Notification of Major Holdings | |
| 07/05/2020 | 08:05 | TR-1: Notification of Major Holdings | |
| 28/04/2020 | 17:04 | Disclosure of rights attached to shares |