| 19 Aug 2026, 22:25 | Change of Director's Interest Notice - Greg Evans | Director Interests | — | 02009 |
| 19 Aug 2026, 22:22 | Change of Directors' Interest Notice - Dharmendra Chandran | Director Interests | — | 02009 |
| 19 Aug 2026, 21:55 | Notification regarding unquoted securities - MAH | Other | — | 06021 |
| 18 Aug 2026, 17:53 | Dividend/Distribution - MAH | Dividends & Distributions | — | 10001, 10002, 10003 |
| 18 Aug 2026, 17:52 | Macmahon Appendix 4G 2026 | Company Administration | — | 03025 |
| 18 Aug 2026, 17:47 | Macmahon Corporate Governance Statement 2026 | Company Administration | — | 03024 |
| 18 Aug 2026, 17:46 | Macmahon Full Year Results Presentation FY26 | Financial Results | MS | 03003, 03026 |
| 18 Aug 2026, 17:46 | Macmahon Delivers Strong Revenue and Earnings in FY26 | Financial Results | MS | 03003, 10003 |
| 18 Aug 2026, 17:46 | Macmahon Annual Report 2026 | Financial Results | — | 03001, 03002, 03011, 03012, 03013, 03020 |
| 18 Aug 2026, 17:46 | Macmahon Appendix 4E FY26 | Financial Results | MS | 03003, 10001, 10002, 10003 |
| 17 Aug 2026, 18:01 | Macmahon Enters Strategic Partnership on Homeground | Mergers & Acquisitions | MS | 07002, 11001 |
| 13 Aug 2026, 18:17 | Macmahon Secures $50m Early Works Contract | Company Update | — | 11001 |
| 12 Aug 2026, 18:15 | Macmahon Selected as Preferred Mining Contractor | Company Update | MS | 11001 |
| 11 Aug 2026, 18:15 | Macmahon Awarded $406m Underground Mining Contract | Company Update | — | 11001 |
| 11 Aug 2026, 04:31 | Change of Directors' Interest Notice - David Gibbs | Director Interests | — | 02009 |
| 7 Aug 2026, 18:21 | 2026 Full Year Results Date and Conference Call Details | Other | — | 03027 |
| 16 July 2026, 18:16 | Change of Director's Interest Notice - Arief Sidarto | Director Interests | — | 02009 |
| 16 July 2026, 18:16 | Change of Director's Interest Notice - Tom Quinn | Director Interests | — | 02009 |
| 16 July 2026, 18:16 | Change of Director's Interest Notice - Suzan Pervan | Director Interests | — | 02009 |
| 16 July 2026, 18:16 | Change of Director's Interest Notice - Greg Evans | Director Interests | — | 02009 |
| 15 July 2026, 18:19 | Macmahon Executes $355m Mt Marion Underground Contract | Company Update | — | 11001 |
| 13 July 2026, 22:33 | Notification regarding unquoted securities - MAH | Other | — | 06021 |
| 23 June 2026, 18:15 | Release from Voluntary Escrow | Securities Administration | — | 06009 |
| 17 June 2026, 22:25 | Investor Presentation - Euroz Hartleys | Presentations | — | 03026 |
| 27 May 2026, 18:21 | Macmahon Awarded Extension at Majestic | Company Update | — | 11001 |
| 1 May 2026, 18:17 | Initial Director's Interest Notice - Arief Sidarto | Director Interests | — | 02008 |
| 29 Apr 2026, 19:21 | Appointment of Non-Executive Director | Company Administration | — | 12001 |
| 21 Apr 2026, 18:40 | TAM: CTPJV SELECTS MACMAHON AS PREFERRED CONTRACTOR | Other | — | — |
| 21 Apr 2026, 18:38 | MGX: CTPJV Selects Preferred Contractor Exploration Decline | Other | — | — |
| 21 Apr 2026, 18:37 | Macmahon Selected Preferred Mining Contractor at Groundrush | Company Update | — | 11001 |
| 3 Apr 2026, 00:32 | Notification of cessation of securities - MAH | Other | — | 06027 |
| 25 Mar 2026, 19:15 | Macmahon Engaged for Restart of Mining at Wonawinta | Company Update | — | 11001 |
| 23 Mar 2026, 19:10 | Macmahon Progresses Engagement for Mining at Mount Carlton | Company Update | — | 11001 |
| 18 Mar 2026, 19:19 | Investor Presentation - Euroz Hartleys Rottnest Conference | Presentations | — | 03026 |
| 17 Mar 2026, 00:39 | Initial Director's Interest Notice - Tom Quinn | Director Interests | — | 02008 |
| 7 Mar 2026, 04:05 | S&P DJI Announces March 2026 Quarterly Rebalance | Other | MS | — |
| 26 Feb 2026, 19:05 | Appointment of Non-Executive Director | Company Administration | — | 12001 |
| 19 Feb 2026, 00:35 | Change of Director's Interest Notice - Greg Evans | Director Interests | — | 02009 |
| 19 Feb 2026, 00:35 | Change of Directors' Interest Notice - Dharmendra Chandran | Director Interests | — | 02009 |
| 18 Feb 2026, 23:40 | Notification regarding unquoted securities - MAH | Other | — | 06021 |
| 17 Feb 2026, 19:08 | Dividend/Distribution - MAH | Dividends & Distributions | — | 10001, 10002, 10003 |
| 17 Feb 2026, 19:02 | Investor Presentation Half Year Results | Financial Results | — | 03004, 03026 |
| 17 Feb 2026, 19:02 | Macmahon Delivers Strong First Half Result | Financial Results | — | 03004, 10003 |
| 17 Feb 2026, 19:02 | Interim Financial Report | Financial Results | — | 03009, 03010, 03015, 03019 |
| 17 Feb 2026, 19:01 | Appendix 4D - Half Year Results | Financial Results | MS | 03004, 10001, 10002, 10003 |
| 12 Feb 2026, 19:11 | 2026 Half Year Results Date and Conference Call Details | Other | — | 03027 |
| 19 Jan 2026, 19:25 | Decmil Awarded $120m Western Hill Bulk Earthworks Contract | Company Update | — | 11001 |
| 7 Jan 2026, 20:15 | Notification of cessation of securities - MAH | Other | — | 06027 |
| 19 Dec 2025, 19:22 | Decmil Awarded $81m Brockman 4 Workshop Expansion Project | Company Update | — | 11001 |
| 17 Dec 2025, 19:36 | Decmil Awarded $51m Windfarm Works | Company Update | — | 11001 |