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Co-founder, IREN Ltd

William Roberts

William Roberts co-founded IREN in 2018 with his brother Daniel Roberts and is Co-Chief Executive Officer. He holds 3.22% of the ordinary shares and 19.76% of the votes, per the October 2026 proxy.

Role
Co-Chief Executive Officer and director
Company
Nasdaq: IREN
Shares reported
13,189,713 (ordinary shares)
Education
Bachelor of Business (Distinction), University of Technology Sydney.
Stake in IREN Ltd
  • % of main listed class
  • % of votes, where shares carry different votes
  1. William Roberts
    3.22%19.76%

Beneficial ownership as reported, with holdings as of 28 September 2026. Beneficial ownership can include shares obtainable within 60 days.

Career

  1. EarlierHeld roles at Westpac and Brookfield Multiplex.
  2. To 2018Worked at Macquarie Group across debt financing, principal investment and risk management, and co-founded its Digital Assets team.
  3. 2018Co-founded IREN, which started in Bitcoin mining.
  4. September 2025Sold vested options to B. Riley through an associated trust for about $24.5 million.

How to read the stake

The position includes shares held through Awassi Capital Holdings 1 and one B Class share. Each B Class share carries fifteen votes for each fully paid ordinary share its holder owns. Roberts is a Founder Director under the company constitution and is not allocated to a class of directors.

Source: IREN Ltd DEF 14A, filed 13 October 2026. This page covers what those documents state. It is not a full biography.

Other founders of IREN Ltd

Questions

What does William Roberts do at IREN Ltd?

William Roberts co-founded IREN in 2018 with his brother Daniel Roberts and is Co-Chief Executive Officer. He holds 3.22% of the ordinary shares and 19.76% of the votes, per the October 2026 proxy.

Who founded IREN Ltd?

Co-founded in 2018 by brothers Daniel and William Roberts, who now share the chief executive role.

All founders