Katherine Fielding is an associate in Ropes & Gray's London office.

Experience

  • Eli Lilly in its definitive agreement to acquire Ajax Therapeutics for up to $2.3 billion and on its definitive agreement to acquire Ventyx Biosciences, Inc. for $1.2 billion.
  • Pfizer on its acquisition of Metsera for ~$10 billion, including in defence of a bidding war based on antitrust grounds before multiple agencies. This matter was designated Antitrust Matter of the Year in 2026 by Global Competition Review.
  • Galderma on the antitrust and foreign direct investment aspects of the acquisition by L’Oreal of an increased equity investment in Galderma.
  • EQT on its acquisition of global secondaries firm Coller Capital, in a transaction understood to be the largest-ever secondaries fund manager acquisition.

Areas of Practice

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