Deirdre’s practice focuses on capital markets, M&A transactions and corporate finance. She has experience working with international and Swiss companies, investment banks and private equity firms in a range of equity, debt and M&A transactions, including IPOs, rights offerings, public and private acquisitions and corporate financing arrangements.


Recent matters in which Deirdre has acted as counsel include the representation of:

  • NEC Corporation in its CHF 2.05 billion acquisition of Avaloq Group AG in 2020

  • EFG International in its agreement to transfer around CHF 1.2 billion of client assets to Banca dello Stato del Cantone Ticino in 2020

  • Credit Suisse, J.P. Morgan, UBS and other members of the bank syndicate in connection with the IPO of SoftwareONE on SIX Swiss Exchange with a market capitalization of CHF 2.8 billion in 2019

  • Stadler Rail AG in its IPO on SIX Swiss Exchange with an offer size of CHF 1.5 billion and a market capitalization of CHF 3.8 billion in 2019

  • Actelion Ltd in connection with the $30 billion public tender offer by Johnson & Johnson for the shares of Actelion and the simultaneous demerger and listing of Idorsia Ltd in 2017

  • New York State Bar
  • IBA International Bar Association

Market Perception

  • Deirdre Ní Annracháin is a key team member and has a very high level of responsiveness at all times.

    Legal 500 2020