{
  "schema_version": "1.0.0",
  "ticker": "MAH",
  "company_name": "Macmahon Holdings Limited",
  "cutoff_date": "2026-10-31",
  "reviewed_at": "2026-10-31",
  "coverage_note": "The 20-account register is dated 11 August 2026; a later director notice and substantial-holder cessation are separately dated. Amman’s row is based on its dated registered holding, not an independently dated substantial notice.",
  "register": {
    "as_of_date": "2026-08-11",
    "issued_shares": 2154985818,
    "source_ids": [
      "annual-2026"
    ],
    "holders": [
      {
        "holder_id": "mah-register-01",
        "name": "Amman Mineral Contractors (Singapore) Pte Ltd",
        "classification": "direct_holder",
        "shares": 954064924,
        "percentage": 44.27,
        "percentage_basis": "issued_shares",
        "as_of_date": "2026-08-11",
        "investor_id": null,
        "identity_note": null,
        "source_ids": [
          "annual-2026"
        ],
        "notes": []
      },
      {
        "holder_id": "mah-register-02",
        "name": "HSBC Custody Nominees (Australia) Limited",
        "classification": "nominee_custodian",
        "shares": 321267247,
        "percentage": 14.91,
        "percentage_basis": "issued_shares",
        "as_of_date": "2026-08-11",
        "investor_id": null,
        "identity_note": null,
        "source_ids": [
          "annual-2026"
        ],
        "notes": []
      },
      {
        "holder_id": "mah-register-03",
        "name": "Citicorp Nominees Pty Limited",
        "classification": "nominee_custodian",
        "shares": 316818588,
        "percentage": 14.7,
        "percentage_basis": "issued_shares",
        "as_of_date": "2026-08-11",
        "investor_id": null,
        "identity_note": null,
        "source_ids": [
          "annual-2026"
        ],
        "notes": []
      },
      {
        "holder_id": "mah-register-04",
        "name": "J P Morgan Nominees Australia Pty Limited",
        "classification": "nominee_custodian",
        "shares": 190419881,
        "percentage": 8.84,
        "percentage_basis": "issued_shares",
        "as_of_date": "2026-08-11",
        "investor_id": null,
        "identity_note": null,
        "source_ids": [
          "annual-2026"
        ],
        "notes": []
      },
      {
        "holder_id": "mah-register-05",
        "name": "HSBC Custody Nominees (Australia) Limited (Ntcomnwlth Super Corp A/C)",
        "classification": "nominee_custodian",
        "shares": 33465877,
        "percentage": 1.55,
        "percentage_basis": "issued_shares",
        "as_of_date": "2026-08-11",
        "investor_id": null,
        "identity_note": null,
        "source_ids": [
          "annual-2026"
        ],
        "notes": []
      },
      {
        "holder_id": "mah-register-06",
        "name": "BNP Paribas Noms Pty Ltd",
        "classification": "nominee_custodian",
        "shares": 19677057,
        "percentage": 0.91,
        "percentage_basis": "issued_shares",
        "as_of_date": "2026-08-11",
        "investor_id": null,
        "identity_note": null,
        "source_ids": [
          "annual-2026"
        ],
        "notes": []
      },
      {
        "holder_id": "mah-register-07",
        "name": "UBS Nominees Pty Ltd",
        "classification": "nominee_custodian",
        "shares": 15174410,
        "percentage": 0.7,
        "percentage_basis": "issued_shares",
        "as_of_date": "2026-08-11",
        "investor_id": null,
        "identity_note": null,
        "source_ids": [
          "annual-2026"
        ],
        "notes": []
      },
      {
        "holder_id": "mah-register-08",
        "name": "Mr Nicholas Barry Debenham",
        "classification": "direct_holder",
        "shares": 14290000,
        "percentage": 0.66,
        "percentage_basis": "issued_shares",
        "as_of_date": "2026-08-11",
        "investor_id": null,
        "identity_note": null,
        "source_ids": [
          "annual-2026"
        ],
        "notes": []
      },
      {
        "holder_id": "mah-register-09",
        "name": "BNP Paribas Nominees Pty Ltd (Agency Lending A/C)",
        "classification": "nominee_custodian",
        "shares": 14282294,
        "percentage": 0.66,
        "percentage_basis": "issued_shares",
        "as_of_date": "2026-08-11",
        "investor_id": null,
        "identity_note": null,
        "source_ids": [
          "annual-2026"
        ],
        "notes": []
      },
      {
        "holder_id": "mah-register-10",
        "name": "CPU Share Plans Pty Ltd",
        "classification": "nominee_custodian",
        "shares": 12082814,
        "percentage": 0.56,
        "percentage_basis": "issued_shares",
        "as_of_date": "2026-08-11",
        "investor_id": null,
        "identity_note": null,
        "source_ids": [
          "annual-2026"
        ],
        "notes": []
      },
      {
        "holder_id": "mah-register-11",
        "name": "Precision Opportunities Fund Ltd",
        "classification": "direct_holder",
        "shares": 12000000,
        "percentage": 0.56,
        "percentage_basis": "issued_shares",
        "as_of_date": "2026-08-11",
        "investor_id": null,
        "identity_note": null,
        "source_ids": [
          "annual-2026"
        ],
        "notes": []
      },
      {
        "holder_id": "mah-register-12",
        "name": "Mr Amarjit Singh and Mrs Jaswant Kaur",
        "classification": "direct_holder",
        "shares": 6200000,
        "percentage": 0.29,
        "percentage_basis": "issued_shares",
        "as_of_date": "2026-08-11",
        "investor_id": null,
        "identity_note": null,
        "source_ids": [
          "annual-2026"
        ],
        "notes": []
      },
      {
        "holder_id": "mah-register-13",
        "name": "Mr Paulus Gerardus Brouwer and Mr Remy Paulus Brouwer",
        "classification": "direct_holder",
        "shares": 5600000,
        "percentage": 0.26,
        "percentage_basis": "issued_shares",
        "as_of_date": "2026-08-11",
        "investor_id": null,
        "identity_note": null,
        "source_ids": [
          "annual-2026"
        ],
        "notes": []
      },
      {
        "holder_id": "mah-register-14",
        "name": "BNP Paribas Noms Pty Ltd (Global Markets)",
        "classification": "nominee_custodian",
        "shares": 4869717,
        "percentage": 0.23,
        "percentage_basis": "issued_shares",
        "as_of_date": "2026-08-11",
        "investor_id": null,
        "identity_note": null,
        "source_ids": [
          "annual-2026"
        ],
        "notes": []
      },
      {
        "holder_id": "mah-register-15",
        "name": "Thorney International Pty Ltd",
        "classification": "direct_holder",
        "shares": 3574952,
        "percentage": 0.17,
        "percentage_basis": "issued_shares",
        "as_of_date": "2026-08-11",
        "investor_id": null,
        "identity_note": null,
        "source_ids": [
          "annual-2026"
        ],
        "notes": []
      },
      {
        "holder_id": "mah-register-16",
        "name": "BNP Paribas Nominees Pty Ltd",
        "classification": "nominee_custodian",
        "shares": 3509565,
        "percentage": 0.16,
        "percentage_basis": "issued_shares",
        "as_of_date": "2026-08-11",
        "investor_id": null,
        "identity_note": null,
        "source_ids": [
          "annual-2026"
        ],
        "notes": []
      },
      {
        "holder_id": "mah-register-17",
        "name": "Certane Ct Pty Ltd",
        "classification": "nominee_custodian",
        "shares": 3501316,
        "percentage": 0.16,
        "percentage_basis": "issued_shares",
        "as_of_date": "2026-08-11",
        "investor_id": null,
        "identity_note": null,
        "source_ids": [
          "annual-2026"
        ],
        "notes": []
      },
      {
        "holder_id": "mah-register-18",
        "name": "Mr Keith Harold Hickox",
        "classification": "direct_holder",
        "shares": 3000000,
        "percentage": 0.14,
        "percentage_basis": "issued_shares",
        "as_of_date": "2026-08-11",
        "investor_id": null,
        "identity_note": null,
        "source_ids": [
          "annual-2026"
        ],
        "notes": []
      },
      {
        "holder_id": "mah-register-19",
        "name": "Researched Investments Pty Ltd",
        "classification": "direct_holder",
        "shares": 3000000,
        "percentage": 0.14,
        "percentage_basis": "issued_shares",
        "as_of_date": "2026-08-11",
        "investor_id": null,
        "identity_note": null,
        "source_ids": [
          "annual-2026"
        ],
        "notes": []
      },
      {
        "holder_id": "mah-register-20",
        "name": "Warbont Nominees Pty Ltd",
        "classification": "nominee_custodian",
        "shares": 2892714,
        "percentage": 0.13,
        "percentage_basis": "issued_shares",
        "as_of_date": "2026-08-11",
        "investor_id": null,
        "identity_note": null,
        "source_ids": [
          "annual-2026"
        ],
        "notes": []
      }
    ]
  },
  "substantial_holders": [
    {
      "holder_id": "amman",
      "name": "Amman Mineral Contractors (Singapore) Pte Ltd",
      "classification": "direct_holder",
      "shares": 954064924,
      "percentage": 44.27,
      "percentage_basis": "issued_shares",
      "as_of_date": "2026-08-11",
      "investor_id": null,
      "identity_note": null,
      "source_ids": [
        "annual-2026"
      ],
      "notes": [
        "The issuer reports this holding as a registered account at 11 August 2026. It also names Amman as a substantial holder but the date of the underlying substantial notice was not established."
      ],
      "caveat": "The 11 August figure is the dated register holding; later changes below the disclosure threshold may not be visible."
    }
  ],
  "other_investors": [
    {
      "holder_id": "finnegan",
      "name": "Michael John Finnegan",
      "classification": "direct_holder",
      "shares": 134511,
      "percentage": null,
      "percentage_basis": "issued_shares",
      "as_of_date": "2026-09-16",
      "investor_id": null,
      "identity_note": null,
      "source_ids": [
        "finnegan-2026"
      ],
      "notes": [
        "Director notice also reports 300,000 ordinary shares held by spouse and 19,085,779 shares held by the employee share ownership plan trustee; these are not added to direct shares. Performance rights are excluded."
      ]
    },
    {
      "holder_id": "paradice",
      "name": "Paradice Investment Management Pty Ltd",
      "classification": "reporting_group",
      "shares": null,
      "percentage": null,
      "percentage_basis": "issued_shares",
      "as_of_date": "2026-10-12",
      "investor_id": null,
      "identity_note": null,
      "source_ids": [
        "paradice-cease-2026"
      ],
      "notes": [
        "Ceased to be a substantial holder on 12 October 2026; the notice does not establish zero shares or an explicitly reported remaining balance."
      ]
    }
  ],
  "sources": [
    {
      "source_id": "annual-2026",
      "title": "2026 annual report",
      "publisher": "Macmahon / ASX",
      "url": "https://asx.api.markitdigital.com/asx-research/1.0/file/2924-03122009-6A1338897",
      "publication_date": "2026-08-18",
      "accessed_date": "2026-10-31",
      "locator": "ASX additional information, top 20; local downloads/MAH/2026/2026-08-18_Macmahon Annual Report 2026_15cff51fa7ce55e3.pdf",
      "detail": "Ordinary share register as at 11 August 2026; 2,154,985,818 issued shares."
    },
    {
      "source_id": "paradice-2026",
      "title": "Form 604: Paradice",
      "publisher": "Macmahon / ASX",
      "url": "https://asx.api.markitdigital.com/asx-research/1.0/file/2924-03134197-6A1343248",
      "publication_date": "2026-09-10",
      "accessed_date": "2026-10-31",
      "locator": "Pages 1–5, visually reviewed; local downloads/MAH/2026/2026-09-10_Change in substantial holding_ccf82dfd347c5a7b.pdf",
      "detail": "138,687,059 votes and 6.4356% on 8 September 2026; superseded by cessation."
    },
    {
      "source_id": "paradice-cease-2026",
      "title": "Form 605: Paradice",
      "publisher": "Macmahon / ASX",
      "url": "https://asx.api.markitdigital.com/asx-research/1.0/file/2924-03148370-6A1349229",
      "publication_date": "2026-10-14",
      "accessed_date": "2026-10-31",
      "locator": "Pages 1–3, visually reviewed; local downloads/MAH/2026/2026-10-14_Ceasing to be a substantial holder_e89be849ccdeb33f.pdf",
      "detail": "Paradice ceased being substantial on 12 October 2026. Cessation does not imply zero ownership."
    },
    {
      "source_id": "finnegan-2026",
      "title": "Appendix 3Y: Michael Finnegan",
      "publisher": "Macmahon / ASX",
      "url": "https://asx.api.markitdigital.com/asx-research/1.0/file/2924-03137640-6A1344695",
      "publication_date": "2026-09-21",
      "accessed_date": "2026-10-31",
      "locator": "Pages 1–2; local downloads/MAH/2026/2026-09-21_Change of Director's Interest Notice - Michael Finnegan_efcdb031d6fc3d7a.pdf",
      "detail": "Director’s direct ordinary-share holding after 16 September 2026 change; separate trust and spouse interests described."
    }
  ],
  "limitations": [
    "The 20 registered accounts total 1,939,691,356 shares and 90.01% of issued shares on 11 August 2026. Nominee and custody accounts do not disclose underlying beneficial owners.",
    "Paradice ceased being a substantial holder on 12 October 2026; it is excluded from the substantial group. The 605 notice does not establish a zero remaining holding.",
    "Amman’s underlying substantial-holder notice and its measurement date were not located; the separately documented 11 August register holding is shown on an issued-share basis.",
    "Finnegan’s trustee shares are not equated with his personal economic ownership; spouse and unvested rights are not added to his direct holding.",
    "Registered accounts, director disclosures, and reporting-group interests can overlap; do not sum these views. All historical positions may have changed."
  ]
}