Fiona Adams

Fiona Adams


Fiona Adams is the Managing Shareholder of the London office and the Co-Chair of the Global Corporate Practice. She primarily represents corporate clients, focusing her practice on mergers and acquisitions, and other transactional matters. Her work spans a range of industries, including pharmaceuticals, financial institutions, media and retail. Fiona has broad experience working on large, complex cross-border transactions.

Fiona is highly recommended by both of the leading independent guides to the legal industry. In its 2017 edition, Chambers UK stated that Fiona’s clients find her "commercial and pragmatic” and that she possesses "great skills in drafting, negotiating and co-ordinating complex M&A transactions," while the Legal 500 UK recognised Fiona for her “solution-oriented, proactive” approach in its 2016 edition.


  • Mergers and acquisitions
  • Corporate transactions
  • Joint ventures



  • Advised AstraZeneca plc on its agreement with Grünenthal to divest rights to migraine treatment Zomig in all markets outside Japan.
  • Advised Rentokil Initial plc on its joint venture agreement with Haniel & Cie. Holding Company which created a leading provider of workwear and hygiene services in Europe with combined revenues of c. €1.1bn.
  • Advised AstraZeneca plc on the sale of its small molecule antibiotics business to Pfizer for US$725m.
  • Advised AstraZeneca plc on its agreement with China Medical System Holdings and its associated company Tibet Rhodiola Pharmaceutical Holdings Co., Ltd., to divest Imdur, a mature medicine for the prevention of angina in patients with heart disease for the global market for US$190m.
  • Advised AB Volvo on the sale of its external IT operation and the operation of its IT infrastructure to HCL Technologies for a capital gain corresponding to SEK900m.
  • Advised IHG in the £350 million sale of Intercontinental Park Lane hotel and management agreement back to IHG.
  • Advised AB Volvo on the sale of its North American construction equipment rental business to Platinum Equity for $1.1bn.
  • Advised Rentokil Initial plc on the sale of its Initial Facilities business to Interserve plc for £250m.
  • Advised AB Volvo on the sale of its Volvo Aero aircraft engines business to GKN (Holdings) plc for £700m.
  • Advised Nomura's brokerage services division, Instinet Incorporated, on the divestment of a majority stake in its MarketPrizm business to Colt Telecom.
  • Advised AstraZeneca plc on the sale of AstraTech business to Dentsply for $1.8bn.
  • Advised Rentokil Initial plc on its acquisition of Knightsbridge Guarding Holdings Limited and KGL Business Services Limited.
  • Advised Rentokil Initial plc on its acquisition of the pest, fire and water businesses from Connaught plc (in administration).
  • Advised Rentokil Initial plc on its acquisition of the building services and facilities management division of Managed Support Services plc.
  • Advised Smiths Group plc in relation to its joint venture with Analogic.
  • Advised Healthcor, 3i and senior management of ApaTech Limited in its US$330m sale to global health care company Baxter International Inc.
  • Partner, Mayer Brown, 2000-2009
  • Associate, Mayer Brown, 1991-2000
  • Foreign Associate, New York office of an international law firm, 1997
  • General Counsel, HMV Media Group plc, 2000

Recognition & Leadership

  • Listed, Best Lawyers in the United Kingdom, "Mergers and Acquisitions Law," 2015-2020 
  • Listed, IFLR 1000 United Kingdom, "Leading Lawyers – M&A," 2017-2018
  • Listed, Chambers Global, Corporate/ M&A (UK), 2014-2019
  • Listed, Chambers UK Guide, Corporate/M&A, 2012-2017
  • Listed, The Legal 500 United Kingdom, Corporate and Commercial – M&A: Upper Mid-Market and Premium Deals, 2012-2017


  • B.Sc., De Montfort University, 1989
  • England and Wales