Kayla Z. X. Southworth

Senior Associate

New York

Kayla Southworth is a Senior Associate in the New York office and a member of the M&A and Private Equity Group.

Kayla advises private equity funds, their portfolio companies, and public and private life sciences, technology, and energy companies on domestic and cross-border mergers and acquisitions, minority and majority investments, joint ventures, licenses, royalty and revenue-sharing financings, and other complex transactions. She also has experience advising clients on New York and Delaware corporate, partnership, limited liability company, and non-profit law, including corporate governance and fiduciary duty matters.

Prior to joining Orrick, she was an Antitrust Associate at Davis Polk and a Litigation Associate at Sullivan & Cromwell.

  • Kayla's recent representations include:

    • Sosei Group Corporation, a fully integrated biopharmaceutical company, on its CHF 400 million acquisition of Idorsia’s Japan and APAC (ex-China) pharmaceuticals business
    • Ferring Pharmaceuticals on several M&A and collaboration transactions
    • RapidMiner, a data analytics and machine learning software company, on its acquisition by Altair Engineering, a global leader in computational science and artificial intelligence solutions, for $100 million
    • Catalyst Biosciences, Inc. on the sale of its complement asset portfolio for $60 million in cash
    • Warburg Pincus and its portfolio company Qualifacts on its merger with Credible Behavioral Health and the add-on acquisition of InSync Healthcare Solutions
    • Apex Clean Energy on the sale of a majority stake to funds managed by Ares Management Corporation
    • Aria Energy on its business combination with Archaea Energy and SPAC Rice Acquisition Corporation
    • GCX Mounting Solutions, a family owned, global leader in the design and manufacturing of healthcare-focused, mission-critical equipment mounting and mobility solutions, on its acquisition by private equity funds managed by Audax Private Equity
    • Aptean on its acquisition of Open Systems Adaptable Solutions
    • K12 on its $165 million acquisition of Galvanize
    • Shopify on its $450 million acquisition of 6 River Systems