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John is a partner in the Corporate M&A Group and a member of our cross-departmental Healthcare and Life Sciences Group.

John specialises in corporate transactions (both domestic and international) including mergers and acquisitions, shareholder arrangements, equity fundraisings, joint ventures, corporate reorganisations and restructurings, corporate redomiciliations and general commercial matters. He advises leading Irish and multi-national public and private companies on private M&A and public company transactional mandates. John has particular experience in the Life Science and Aviation sectors, having worked on many significant corporate transactions in these sectors in recent years.

Experience and Education

John has advised:

  • Novo Nordisk on a number of matters including (i) its $1.2 billion acquisition of Prothena Corporation plc’s clinical stage antibody PRX004 and broader ATTR amyloidosis programme, housed in Neotope Neuroscience Limited, (ii) a cross border IP restructuring (iii) its acquisition of a pharmaceutical manufacturing facility from Alkermes plc. and (iv) corporate governance and compliance issues;
  • Impulse Dynamics plc on a number of matters, including (i) its corporate redomiciliation form Curaçao to Ireland, (ii) various securities laws and governance issues and (iii) various equity fundraising, including its recent $136 million Series F fundraising round;
  • Zoom Video Communications, Inc on its acquisition of employee communication and engagement platform, Workvivo;
  • Google on its $150 million acquisition of Pointy, an Irish based technology company which has developed a hardware and software technology to help physical retailers get their products discoverable online;
  • Horizon Therapeutics plc on its acquisition of a pharmaceutical manufacturing facility, and its related business, in County Waterford, from EirGen Pharma, an OPKO Health Company, for $65 million;
  • ALAFCO Aviation on the $2.2 billion sale of its aircraft leasing platform, consisting of 73 aircraft, to Macquarie Airfinance Group;
  • Azorra Aviation acquisition of a portion of Nordic Aviation Capital’s aircraft leasing platform, consisting of 37 aircraft, as part of a Chapter 11 bankruptcy process;
  • Towerbrook Capital Partners on its €100m controlling equity investment in CarTrawler, the leading B2B provider of car rental and mobility solutions to the travel industry;
  • Trinity Biotech plc on various matter including (i) the disposal of its Fitzgerald Industries division to Biosynth International, the Swiss based provider of life sciences reagents and CDMO services, (ii) securities law filings and (iii) on on-going governance advices;
  • Amazon on its acquisition of Bay Farms Limited;
  • Aerogen Pharma on a joint venture with Lyomark Pharma GmbH in relation to the development of a combination drug and medical device product;
  • a consortium of investors led by Novo Holdings and Andera Partners SCA on their acquisition of a minority interest in Foundry Innovation & Research 1 Ltd (FIRE1);
  • RA Capital Management on its investment in Whiteswell Limited, an Irish medical device company focused on the treatment of acute decompensated heart failure; and
  • RIVE Private Investment on its acquisition of a controlling interest in the Loxig Aero Group.
  • University College Dublin, Bachelor’s Degree (BCL), 2010
  • Kings College London, Masters of Laws (LLM), 2011
  • Law Society of Ireland, admitted as a solicitor, 2014
  • Chartered Accountants Ireland, Diploma Corporate Finance, 2015

Recent Deal Announcements

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Experience Highlight

29/10/2025

Matheson advises Baghdadi Capital family office on its investment in trade finance provider Teybridge Capital Europe

Experience Highlight

08/10/2025

Matheson advises Ardian Infrastructure on its acquisition of leading energy utility Energia Group

Experience Highlight

15/12/2024

Arctic Wolf Networks, Inc. advised on its acquisition of BlackBerry Ltd

Experience Highlight

30/08/2024

ALAFCO Aviation on the $2.2 billion sale of its aircraft leasing platform, consisting of 73 aircraft, to Macquarie Airfinance Group. 

Experience Highlight

01/05/2024

Novo Nordisk advised on its acquisition of its first manufacturing facility in Ireland

Experience Highlight

17/10/2023

RIVE Private Investment on its acquisition of a controlling interest in the Logix Aero Group.

Experience Highlight

14/05/2023

Zoom Video Communications, Inc advised on its acquisition of Workvivo

Experience Highlight

14/06/2022

Azorra Aviation Acquires NAC Aircraft Portfolio

News and Insights

Insights
09/09/2025

Update on the Upcoming Expiry of the IPHA Medicine Pricing Agreement

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Insights
28/05/2025

Irish FDI Screening Regime – Application to The Life Sciences Sector

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Insights
14/08/2024

Private Mergers and Acquisitions in Ireland: Overview

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News
24/01/2024

Matheson Adds Five New Partners

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‘John Coary – efficient, quick, available, understood quickly what we needed.’

Healthcare and life sciences: The European Legal 500

2024

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