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William H. Aaronson


William H. Aaronson

Mergers & Acquisitions
New York

Co-head of Mergers & Acquisitions. Advises clients on public and private M&A transactions, joint ventures, shareholder activism and general corporate matters.

Will is co-head of our Mergers & Acquisitions group. He advises clients on public and private M&A transactions, joint ventures and other corporate partnering arrangements. He also advises companies on corporate governance matters, shareholder activism and general corporate matters.

Experience highlights

  • Advanced Accelerator Applications in its acquisition by Novartis
  • Attunity in its acquisition by Qlik Technologies
  • Bath & Body Works (f/k/a L Brands) in the Victoria’s Secret spinoff
  • Chemtura in its sale to Lanxess
  • Comcast in its:
    • Superior proposal to acquire Sky plc
    • Acquisitions of AT&T Broadband, NBCUniversal, Craftsy, Daily Candy, Fandango and Plaxo
    • Investments in various regional sports networks
  • Emera in its acquisition of TECO Energy
  • FMC Corporation in the separation of its lithium division into a publicly traded company called Livent Corporation
  • Hargray Communications in its sale to Cable One
  • Hexion in its:
    • Sale to American Securities
    • Sale of its epoxy businesses to Westlake Chemical
  • Livent in its investment in Nemaska Lithium
  • Lydall in its acquisition by Unifrax
  • MasterCard International in its:
    • Acquisition of Applied Predictive Technologies
    • Acquisition of the TNS Gateway Services business
  • MDLIVE in its acquisition by Evernorth
  • Millicom in its:
    • Acquisition of Telefónica's assets in Panama and Nicaragua
    • Acquisition of Cable Onda
  • Mitsubishi Tanabe Pharma in its acquisition of NeuroDerm
  • NBCUniversal in its:
    • Acquisition of DreamWorks Animation
    • Combination of Fandango with Flixster and Rotten Tomatoes
    • Acquisition of The Blackstone Group’s 50% interest in the Universal Orlando theme park
    • Sale of its minority interest in A&E
  • NICE Systems in its acquisition of inContact
  • Novo Nordisk in its acquisitions of Dicerna Pharmaceuticals, Emisphere Technologies and Neotope Neuroscience
  • Rentokil Initial in its pending acquisition of Terminix
  • Solvay in its:
    • Acquisitions of Chemlogics and Cytec Industries
    • Divestiture of its Eco Services business
  • SSW Partners in its acquisition of Veoneer with Qualcomm
  • Suez in its acquisition of GE Water & Process Technologies and sale of a minority stake in Suez Water Resources
  • TE Connectivity in its:
    • Acquisitions of ADC Telecommunications, Creganna Medical Group, Deutsch Group SAS, Measurement Specialties and SEACON Group
    • Divestitures of its touch solutions, wireless, integrated products and automotive sensors businesses
  • Technip in its:
    • Merger with FMC Technologies
    • Acquisition of Global Industries
    • Acquisition of Stone & Webster Process Technologies from The Shaw Group
  • Technip Energies in its spinoff from TechnipFMC
  • Virgin Group’s VG Acquisition in its combination with 23andMe
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Chambers USA – Corporate/M&A - New York

BTI Consulting Group – “BTI Client All-Star,” 2016

The New York Times listed Will, along with several other Davis Polk partners, as one of the leading dealmakers on Wall Street under the age of 40 (“Facebook of Wall Street’s Future,” NYT, Oct. 3, 2007).

J.D., Harvard Law School
  • magna cum laude
B.A., Johns Hopkins University
  • Phi Beta Kappa
Professional history
  • Partner, 2003-present
  • Head of Client Development, 2016-2017
  • Associate, 1995-2003
  • Northern California office, 2004-2006
Qualifications and admissions
  • State of California
  • State of New York
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