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Donal is a partner in the Asset Management Department at Matheson.

He practices financial services law and advises many of the world’s leading financial institutions, investment banks and asset management companies carrying on business through Irish domiciled investment funds and Irish domiciled management companies.

Donal has widespread experience in the establishment, authorisation and operation of all types of investment funds in Ireland, including UCITS and non-UCITS across the full range of strategies, including plain vanilla strategies, hedge fund strategies, structured UCITS, fund of funds, money market funds and exchange traded funds (“ETFs”).

He also has significant experience in the provision of regulatory and compliance matters for fund service providers.

Donal has particular experience in relation to advising ETFs and the re-domiciliation of investment funds, in particular cross border mergers of funds under UCITS IV.

He has extensive experience in respect of the authorisation of management companies seeking approval in Ireland under both the UCITS Directive and Alternative Investment Fund Managers Directive (“AIFMD”).

Donal is a member of the Irish Funds Packaged Retail Investments Product Regulation working group.

Experience and Education

Donal has advised:

  • on the establishment and operation of major ETF platforms.
  • on numerous cross border mergers including one of the first UCITS ETF mergers in Europe.
  • in respect of the authorisation of management companies seeking approval in Ireland under both the UCITS Directive and AIFMD.
  • both UCITS management companies and AIFMs on their passporting applications to be appointed as the management company to other EU domiciled investment funds.
  • on the cross-border aspects of Irish domiciled investment funds marketing and entering both European and non-European markets.
  • assisted clients prepare for reviews by the Central Bank of Ireland notably so-called “PRISM” reviews which have become increasingly common.
  • Ongoing advisory and compliance work with some of the world’s largest asset managers.
  • University of Limerick, Bachelor of Arts in Law and Accounting
  • Admitted as a solicitor in Ireland

News and Insights

Insights
10/09/2025

Ireland Moves to Enhance its AIF Regime in Anticipation of AIFMD 2.0

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Insights
10/09/2025

Central Bank of Ireland Consults on Changes to UCITS Rules

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Insights
21/07/2025

ESMA Reports on Outcome of CSA on Sustainability Disclosures

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Insights
21/07/2025

ESMA Proposes Look-Through for UCITS Investments

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Insights
29/04/2025

AIFMD 2.0: Draft Rules on Loan Origination & Liquidity Management Tools

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Insights
29/04/2025

Developments Impacting the Supervision of Investment Funds

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Insights
29/04/2025

CSRD and the Omnibus Proposal – Implications for Fund Managers

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Insights
29/04/2025

CBI Clarifies Rules on Alternative Investment Funds Acting as Guarantors

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Accolades

“Donal O’Byrne – unbelievably hard working and caring about his clients.”

Investment Funds: The European Legal 500

2025

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