| 12/08/25 | 10:31:04 | 12 Aug 2025 | | Holding(s) in Company | RNS |
| 12/08/25 | 07:00:06 | 12 Aug 2025 | | Transaction in Own Shares | RNS |
| 11/08/25 | 07:00:03 | 11 Aug 2025 | | Share Repurchase Programme | RNS |
| 08/08/25 | 17:00:00 | 8 Aug 2025 | | Holding(s) in Company | RNS |
| 07/08/25 | 07:00:11 | 7 Aug 2025 | | 2025 half year results | RNS |
| 26/06/25 | 07:01:00 | 26 Jun 2025 | | Serco appoints Keith Williams as Board Chair | RNS |
| 26/06/25 | 07:00:08 | 26 Jun 2025 | | Serco pre-close trading update | RNS |
| 30/05/25 | 09:30:01 | 30 May 2025 | | Block listing Interim Review | RNS |
| 27/05/25 | 07:00:12 | 27 May 2025 | | Serco completes acquisition of MTS | RNS |
| 15/05/25 | 07:00:06 | 15 May 2025 | | Serco awarded Maritime Services contracts | RNS |
| 13/05/25 | 13:00:01 | 13 May 2025 | | Director/PDMR Shareholding | RNS |
| 09/05/25 | 15:00:00 | 9 May 2025 | | Director/PDMR Shareholding | RNS |
| 24/04/25 | 12:18:09 | 24 Apr 2025 | | Result of AGM and Director Declaration | RNS |
| 09/04/25 | 17:00:01 | 9 Apr 2025 | | Director/PDMR Shareholding | RNS |
| 07/04/25 | 17:10:00 | 7 Apr 2025 | | Director/PDMR Shareholding | RNS |
| 31/03/25 | 14:21:58 | 31 Mar 2025 | | Director/PDMR Shareholding | RNS |
| 21/03/25 | 18:00:00 | 21 Mar 2025 | | Director/PDMR Shareholding | RNS |
| 20/03/25 | 15:30:33 | 20 Mar 2025 | | Publication of the 2024 ARA and 2025 Notice of AGM | RNS |
| 17/03/25 | 17:00:00 | 17 Mar 2025 | | Holding(s) in Company | RNS |
| 17/03/25 | 17:00:00 | 17 Mar 2025 | | Holding(s) in Company | RNS |
| 14/03/25 | 16:30:01 | 14 Mar 2025 | | Holding(s) in Company | RNS |
| 10/03/25 | 17:00:00 | 10 Mar 2025 | | Holding(s) in Company | RNS |
| 03/03/25 | 10:15:01 | 3 Mar 2025 | | Director Declaration | RNS |
| 27/02/25 | 12:00:00 | 27 Feb 2025 | | Annual Financial Report & Publication of 2024 ARA | RNS |
| 27/02/25 | 07:00:09 | 27 Feb 2025 | | 2024 Final Results | RNS |
| 06/02/25 | 16:00:00 | 6 Feb 2025 | | Serco awarded landmark AFRS contract | RNS |
| 30/01/25 | 07:00:07 | 30 Jan 2025 | | Serco acquires leading US defence business | RNS |
| 20/01/25 | 15:00:00 | 20 Jan 2025 | | Holding(s) in Company | RNS |
| 16/01/25 | 18:20:00 | 16 Jan 2025 | | Holding(s) in Company | RNS |
| 15/01/25 | 07:22:51 | 15 Jan 2025 | | Serco wins $247m US Army contract | RNS |
| 13/01/25 | 07:00:06 | 13 Jan 2025 | | Chief Executive retirement | RNS |
| 09/01/25 | 18:20:00 | 9 Jan 2025 | | Holding(s) in Company | RNS |
| 06/01/25 | 18:00:00 | 6 Jan 2025 | | Holding(s) in Company | RNS |
| 31/12/24 | 10:00:00 | 31 Dec 2024 | | Total Voting Rights | RNS |
| 20/12/24 | 15:07:50 | 20 Dec 2024 | | Cancellation of Treasury Shares | RNS |
| 19/12/24 | 12:00:00 | 19 Dec 2024 | | Holding(s) in Company | RNS |
| 19/12/24 | 07:00:06 | 19 Dec 2024 | | Trading statement for 2024 & outlook for 2025 | RNS |
| 29/11/24 | 18:15:00 | 29 Nov 2024 | | Transaction in Own Shares and Total Voting Rights | RNS |
| 29/11/24 | 16:00:00 | 29 Nov 2024 | | Block listing Interim Review | RNS |
| 29/11/24 | 07:00:02 | 29 Nov 2024 | | Transaction in Own Shares | RNS |
| 28/11/24 | 07:00:03 | 28 Nov 2024 | | Transaction in Own Shares | RNS |
| 27/11/24 | 07:00:04 | 27 Nov 2024 | | Transaction in Own Shares | RNS |
| 26/11/24 | 07:00:04 | 26 Nov 2024 | | Transaction in Own Shares | RNS |
| 25/11/24 | 07:00:02 | 25 Nov 2024 | | Transaction in Own Shares | RNS |
| 22/11/24 | 07:00:03 | 22 Nov 2024 | | Transaction in Own Shares | RNS |
| 21/11/24 | 07:00:01 | 21 Nov 2024 | | Transaction in Own Shares | RNS |
| 20/11/24 | 07:00:03 | 20 Nov 2024 | | Transaction in Own Shares | RNS |
| 19/11/24 | 07:00:04 | 19 Nov 2024 | | Transaction in Own Shares | RNS |
| 18/11/24 | 07:00:02 | 18 Nov 2024 | | Transaction in Own Shares | RNS |
| 15/11/24 | 07:00:02 | 15 Nov 2024 | | Transaction in Own Shares | RNS |
