David Mangan


David is a partner in our Corporate team, practising in the areas of equity capital markets and securities law.

During 2016 to 2019, David headed the New York office of Mason Hayes & Curran.

David is also a member of our Capital Markets team and advises listed and unlisted corporate clients and financial advisers on public company transactions, debt and equity offerings, share buybacks, reorganisations and corporate finance.


  • Capital markets
  • Mergers and acquisitions
  • Corporate governance
  • Private equity

Representative Matters

  • Represented Global Shares plc on a significant investment from Motive Partners, a US-headquartered private equity fund.
  • Acted for la Caisse de dépôt et placement du Québec (CDPQ) on its acquisition of a 25% interest in One51 plc and a subsequent shareholder- approved swap-up transaction and listing of IPL Plastics, Inc. on the Toronto Stock Exchange.
  • Led the team representing Kneat Solutions Limited in its reverse takeover by, Inc. with a view to gaining a listed holding company on the TSXV market of the Toronto Stock Exchange. 


Legal 500, 2019

Clients praise David for being “responsive and helpful”.

Speaking Engagements & Teaching

David lectures regularly on topics in company law and securities law to a wide variety of audiences.

  • LinkedIn

Areas of Expertise

Equity Capital Markets Company Law Corporate Governance & Compliance Corporate Law Mergers & Acquisitions

Professional Memberships

The Law Society of Ireland

The Law Society of England and Wales


Trinity College Dublin, BA, Business Economics and Social Studies

Columbia University, MA, Political Science