| 16/09/25 | 07:00:04 | 16 Sept 2025 | | Transaction in Own Shares |
| 15/09/25 | 17:00:01 | 15 Sept 2025 | | Director/PDMR Shareholding |
| 15/09/25 | 07:00:04 | 15 Sept 2025 | | Transaction in Own Shares |
| 12/09/25 | 07:00:07 | 12 Sept 2025 | | Transaction in Own Shares |
| 11/09/25 | 07:00:04 | 11 Sept 2025 | | Transaction in Own Shares |
| 10/09/25 | 07:00:03 | 10 Sept 2025 | | Transaction in Own Shares |
| 09/09/25 | 17:40:01 | 9 Sept 2025 | | Director/PDMR Shareholding |
| 09/09/25 | 07:00:03 | 9 Sept 2025 | | Transaction in Own Shares |
| 08/09/25 | 17:00:00 | 8 Sept 2025 | | Holding(s) in Company |
| 08/09/25 | 07:00:04 | 8 Sept 2025 | | Transaction in Own Shares |
| 05/09/25 | 07:00:02 | 5 Sept 2025 | | Transaction in Own Shares |
| 04/09/25 | 07:00:08 | 4 Sept 2025 | | Transaction in Own Shares |
| 03/09/25 | 07:00:05 | 3 Sept 2025 | | Transaction in Own Shares |
| 02/09/25 | 07:00:04 | 2 Sept 2025 | | Transaction in Own Shares |
| 29/08/25 | 18:19:00 | 29 Aug 2025 | | Transaction in Own Shares and Total Voting Rights |
| 29/08/25 | 07:00:05 | 29 Aug 2025 | | Transaction in Own Shares |
| 28/08/25 | 09:30:01 | 28 Aug 2025 | | Update Statement on 2025 AGM Voting Results |
| 28/08/25 | 07:00:05 | 28 Aug 2025 | | Transaction in Own Shares |
| 27/08/25 | 07:00:05 | 27 Aug 2025 | | Transaction in Own Shares |
| 26/08/25 | 15:00:00 | 26 Aug 2025 | | Director/PDMR Shareholding |
| 26/08/25 | 07:00:08 | 26 Aug 2025 | | Transaction in Own Shares |
| 22/08/25 | 15:00:00 | 22 Aug 2025 | | Statement re shareholder consultation |
| 22/08/25 | 07:00:02 | 22 Aug 2025 | | Transaction in Own Shares |
| 21/08/25 | 07:00:05 | 21 Aug 2025 | | Transaction in Own Shares |
| 20/08/25 | 14:00:00 | 20 Aug 2025 | | Director/PDMR Shareholding |
| 20/08/25 | 07:00:05 | 20 Aug 2025 | | Transaction in Own Shares |
| 19/08/25 | 07:00:05 | 19 Aug 2025 | | Transaction in Own Shares |
| 18/08/25 | 07:00:04 | 18 Aug 2025 | | Transaction in Own Shares |
| 15/08/25 | 07:00:07 | 15 Aug 2025 | | Transaction in Own Shares |
| 14/08/25 | 07:00:06 | 14 Aug 2025 | | Transaction in Own Shares |
| 13/08/25 | 07:00:05 | 13 Aug 2025 | | Transaction in Own Shares |
| 12/08/25 | 16:00:00 | 12 Aug 2025 | | Holding(s) in Company |
| 12/08/25 | 10:31:04 | 12 Aug 2025 | | Holding(s) in Company |
| 12/08/25 | 07:00:06 | 12 Aug 2025 | | Transaction in Own Shares |
| 11/08/25 | 07:00:03 | 11 Aug 2025 | | Share Repurchase Programme |
| 08/08/25 | 17:00:00 | 8 Aug 2025 | | Holding(s) in Company |
| 07/08/25 | 07:00:11 | 7 Aug 2025 | | 2025 half year results |
| 26/06/25 | 07:01:00 | 26 Jun 2025 | | Serco appoints Keith Williams as Board Chair |
| 26/06/25 | 07:00:08 | 26 Jun 2025 | | Serco pre-close trading update |
| 30/05/25 | 09:30:01 | 30 May 2025 | | Block listing Interim Review |
| 27/05/25 | 07:00:12 | 27 May 2025 | | Serco completes acquisition of MTS |
| 15/05/25 | 07:00:06 | 15 May 2025 | | Serco awarded Maritime Services contracts |
| 13/05/25 | 13:00:01 | 13 May 2025 | | Director/PDMR Shareholding |
| 09/05/25 | 15:00:00 | 9 May 2025 | | Director/PDMR Shareholding |
| 24/04/25 | 12:18:09 | 24 Apr 2025 | | Result of AGM and Director Declaration |
| 09/04/25 | 17:00:01 | 9 Apr 2025 | | Director/PDMR Shareholding |
| 07/04/25 | 17:10:00 | 7 Apr 2025 | | Director/PDMR Shareholding |
| 31/03/25 | 14:21:58 | 31 Mar 2025 | | Director/PDMR Shareholding |
| 21/03/25 | 18:00:00 | 21 Mar 2025 | | Director/PDMR Shareholding |
| 20/03/25 | 15:30:33 | 20 Mar 2025 | | Publication of the 2024 ARA and 2025 Notice of AGM |
