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2026-11-06
◂ Monitor HRN ASX

Horizon Gold Limited

DFS Unfunded Developer · Gold · Australia Rating locked: sign in to view v6.2
Last 2026-11-06
A$1.135
1D
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1M
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YTD
—
1Y
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Upside
Locked: sign in to view
Mkt cap
A$221.5M
EV
A$197.5M
Cash
A$24M
Debt
A$0
2 newer ASX announcements not yet reflected in this valuation

People, delivery and responsibility

Management background checks

Evidence through 2026-10-09

Research assessment

Executive team

Rating locked: sign in to viewTeam rating and score are available to subscribers

Evidence coverage has been deepened with dated issuer filings and selected independent records. Career claims remain mostly issuer-reported, and open-web adverse checks are limited in scope; findings are attributed to individuals only where sources establish that link.

Decision-relevant facts

Material summary

Individual involvement and employer context shown separately

Scott Williamson

Managing Director, Chief Executive Officer

Current
Personal SuccessIssuer Reported · Medium materiality

Relevant professional background and qualifications

Issuer appointment release says 20+ years in mining engineering and corporate roles and identifies prior employers Blackstone Minerals, Resolute Mining and others.

Individual involvement documented · This is an issuer-published career summary; it is not independent verification of every claimed contribution.

Appointment of new CEO and MD · announcement summary
GovernanceIssuer Reported · Medium materiality

CEO appointment and board-to-exploration transition are dated

Horizon announced Williamson as CEO/MD effective 2 Feb 2026 and said Leigh Ryan would resign as director that date and transition to GM Exploration; Ryan had served as MD since Dec 2020. Williamson was also a NED of Leeuwin Metals and Corazon Mining, and his Blackstone resignation was effective 31 Jan 2026.

Individual involvement documented · This is a dated issuer disclosure; it documents role changes and concurrent directorships, not a governance breach.

Evidence gaps · 3
  • Independent verification of the complete career chronology, education and professional memberships is not established by the sources reviewed.
  • No comprehensive regulator, court, safety, environment or litigation-record review was completed; absence of a finding here is not a clearance.
  • Individual contribution to employer outcomes and concurrent board interests require additional source-level verification.

Full background report

Scott Williamson

Managing Director, Chief Executive Officer

Career chronology

Personal achievements

Relevant professional background and qualifications

Previous career / current appointment; exact periods only where stated · issuer reported · medium materiality

Issuer appointment release says 20+ years in mining engineering and corporate roles and identifies prior employers Blackstone Minerals, Resolute Mining and others.

Attribution: Individual involvement documented. This is an issuer-published career summary; it is not independent verification of every claimed contribution.

Relevance: The disclosed roles and qualifications bear on the executive’s managing director, chief executive officer responsibilities.

Appointment of new CEO and MD (announcement summary)

Governance and interests

CEO appointment and board-to-exploration transition are dated

30 Jan–2 Feb 2026 · issuer reported · medium materiality

Horizon announced Williamson as CEO/MD effective 2 Feb 2026 and said Leigh Ryan would resign as director that date and transition to GM Exploration; Ryan had served as MD since Dec 2020. Williamson was also a NED of Leeuwin Metals and Corazon Mining, and his Blackstone resignation was effective 31 Jan 2026.

Attribution: Individual involvement documented. This is a dated issuer disclosure; it documents role changes and concurrent directorships, not a governance breach.

Relevance: Clarifies current responsibility and transition overlap.

Appointment of new Chief Executive Officer and Managing Director (p.1 lines 6–34)

Suitability for the current role

Current role relevance is supported at title level

At evidence cutoff · analyst inference · medium materiality

Analyst inference: the disclosed current title indicates experience relevant to the assigned function. The record reviewed does not establish individual delivery outcomes or independently verify credentials beyond the cited issuer disclosure.

Attribution: Responsibility not applicable. This is an analytical role-fit judgment, not a claim of proven performance.

Relevance: Current role scope is directly relevant to team composition; evidence of delivery remains limited.

Appointment of new CEO and MD (30 January 2026 CEO appointment announcement summary.)

Evidence gaps

  • Independent verification of the complete career chronology, education and professional memberships is not established by the sources reviewed.

  • No comprehensive regulator, court, safety, environment or litigation-record review was completed; absence of a finding here is not a clearance.

  • Individual contribution to employer outcomes and concurrent board interests require additional source-level verification.

Leigh Ryan

General Manager – Exploration

Current
Personal SuccessIssuer Reported · Medium materiality

Relevant professional background and qualifications

Appointed MD in 2020; moved to General Manager – Exploration effective 2 February 2026.

Individual involvement documented · This is an issuer-published career summary; it is not independent verification of every claimed contribution.

Appointment of new CEO and MD · announcement summary
Evidence gaps · 3
  • Independent verification of the complete career chronology, education and professional memberships is not established by the sources reviewed.
  • No comprehensive regulator, court, safety, environment or litigation-record review was completed; absence of a finding here is not a clearance.
  • Individual contribution to employer outcomes and concurrent board interests require additional source-level verification.

Full background report

Leigh Ryan

General Manager – Exploration

Career chronology

  • Current at evidence cutoff: Horizon Gold Limited — General Manager – Exploration. Appointment of new CEO and MD (30 January 2026 CEO appointment announcement summary.)

Personal achievements

Relevant professional background and qualifications

Previous career / current appointment; exact periods only where stated · issuer reported · medium materiality

Appointed MD in 2020; moved to General Manager – Exploration effective 2 February 2026.

Attribution: Individual involvement documented. This is an issuer-published career summary; it is not independent verification of every claimed contribution.

Relevance: The disclosed roles and qualifications bear on the executive’s general manager – exploration responsibilities.

Appointment of new CEO and MD (announcement summary)

Governance and interests

Company disclosed a late director-interest filing

Director-interest notice due after 14 December 2023; disclosed 19 July 2024 · documented · low materiality

In July 2024 Horizon said it had overlooked filing an Appendix 3Y notice for options that expired on 14 December 2023 while Leigh Ryan was Managing Director. The issuer described the breach as a one-off administrative oversight, minor in nature, and not indicative of a systematic governance deficiency; it said improved notification systems were implemented.

Attribution: Role overlaps event; causation unproven. Ryan’s MD tenure overlapped the company-level filing control failure, but the issuer did not attribute personal responsibility to him. No inference of personal misconduct is made.

Relevance: The event bears on disclosure controls under executive oversight but is limited by its disclosed minor, one-off nature and remedial steps.

Appendix 3Y – Change of Director’s Interest Notice (p.1 lines 6–20)

Suitability for the current role

Current role relevance is supported at title level

At evidence cutoff · analyst inference · medium materiality

Analyst inference: the disclosed current title indicates experience relevant to the assigned function. The record reviewed does not establish individual delivery outcomes or independently verify credentials beyond the cited issuer disclosure.

Attribution: Responsibility not applicable. This is an analytical role-fit judgment, not a claim of proven performance.

Relevance: Current role scope is directly relevant to team composition; evidence of delivery remains limited.

Appointment of new CEO and MD (30 January 2026 CEO appointment announcement summary.)

Evidence gaps

  • Independent verification of the complete career chronology, education and professional memberships is not established by the sources reviewed.

  • No comprehensive regulator, court, safety, environment or litigation-record review was completed; absence of a finding here is not a clearance.

  • Individual contribution to employer outcomes and concurrent board interests require additional source-level verification.

Trevor O’Connor

Company Secretary

Current
Role FitAnalyst Inference · Medium materiality

Current role relevance is supported at title level

Analyst inference: the disclosed current title indicates experience relevant to the assigned function. The record reviewed does not establish individual delivery outcomes or independently verify credentials beyond the cited issuer disclosure.

Responsibility not applicable · This is an analytical role-fit judgment, not a claim of proven performance.

Directors and Management · Issuer Directors and Management page, accessed 9 October 2026.
Evidence gaps · 3
  • Independent verification of the complete career chronology, education and professional memberships is not established by the sources reviewed.
  • No comprehensive regulator, court, safety, environment or litigation-record review was completed; absence of a finding here is not a clearance.
  • Individual contribution to employer outcomes and concurrent board interests require additional source-level verification.

Full background report

Trevor O’Connor

Company Secretary

Career chronology

  • Current at evidence cutoff: Horizon Gold Limited — Company Secretary. Directors and Management (Issuer Directors and Management page, accessed 9 October 2026.)

Suitability for the current role

Current role relevance is supported at title level

At evidence cutoff · analyst inference · medium materiality

Analyst inference: the disclosed current title indicates experience relevant to the assigned function. The record reviewed does not establish individual delivery outcomes or independently verify credentials beyond the cited issuer disclosure.

Attribution: Responsibility not applicable. This is an analytical role-fit judgment, not a claim of proven performance.

Relevance: Current role scope is directly relevant to team composition; evidence of delivery remains limited.

Directors and Management (Issuer Directors and Management page, accessed 9 October 2026.)

Evidence gaps

  • Independent verification of the complete career chronology, education and professional memberships is not established by the sources reviewed.

  • No comprehensive regulator, court, safety, environment or litigation-record review was completed; absence of a finding here is not a clearance.

  • Individual contribution to employer outcomes and concurrent board interests require additional source-level verification.