David Leinwand’s practice focuses on merger and acquisition transactions.

He has represented a broad array of buyers and sellers, as well as their financial advisors, in a wide variety of public and private deals. In particular, David has significant experience advising private equity firms in their acquisitions and dispositions. He also provides advice regarding governance matters and the fiduciary duties of officers and directors to corporations and their boards.

Over the past few years, David has worked on a number of high-profile deals involving companies in a range of industries, including consumer products and retail, energy, financial services, information technology, and pharmaceuticals and biotechnology.

David joined the firm in 1992 and became a partner in 2000.

Notable Experiences

  • Warburg Pincus in its acquisitions of:

    • Bausch & Lomb
    • CityMD
    • CROSSMARK Holdings
    • Duravant
    • Electronic Funds Source
    • Endurance International Group
    • Gabriel Brothers
    • Guardsmark
    • Hygiena
    • Labstat
    • Sotera Health
    • Sterigenics
    • Universal Services of America
    • Wencor Group
  • Warburg Pincus in the recapitalization of iNRCORE.

  • Warburg Pincus and Advent International in their $4.25 billion acquisition of BioPharma Solutions.

  • Tech Data in its $6 billion sale to Apollo Global Management and its $2.6 billion acquisition of Tech Solutions from Avnet.

  • McCormick & Co. in its $4.2 billion acquisition of Reckitt Benckiser’s food business.

  • Allied Universal, a Warburg Pincus and Wendel portfolio company, in its $1 billion acquisition of U.S. Security Associates.

  • Warburg Pincus and Universal Services of America in the merger of Universal Services with AlliedBarton Security Services.

  • Warburg Pincus and Electronics Funds Source in the $1.5 billion sale of EFS to WEX.

  • Endurance International Group in its acquisitions of Constant Contact for $1.1 billion, HostGator, and the websites business of Intuit.

  • Duravant in its acquisition of Key Technology.

  • Consolidated Precision Products, a Warburg Pincus company, in its acquisition of Selmet.

  • GFL Environmental in its $5.125 billion sale to BC Partners and Ontario Teachers’ Pension Plan.

  • Hygiena in its acquisition of DuPont’s global food safety diagnostic business.

  • GT Nexus in its $675 million acquisition by Infor.

  • OpenText in its $1.165 billion acquisition of GXS Group and its acquisition of Actuate.

  • Benvolio Group in its acquisition of a minority investment in Flywheel Sports.

  • Neiman Marcus, TPG Capital, and Warburg Pincus in the $6 billion sale of Neiman Marcus to Ares Management and the Canada Pension Plan Investment Board, which The American Lawyer named its 2014 “Global M&A Deal of the Year: Canada.” David previously represented TPG and Warburg Pincus in their acquisition of Neiman Marcus.

  • Bausch & Lomb and Warburg Pincus in the $8.7 billion sale of Bausch & Lomb to Valeant Pharmaceuticals.

  • ABB in its $1 billion acquisition of Power-One and in its $1 billion acquisition of Ventyx.

  • TPG in its $1.7 billion acquisition and recapitalization of Savers.

  • Biomet in its acquisition of the global trauma business of DePuy Orthopaedics.

  • DSM in its $1.087 billion acquisition of Martek Biosciences.

  • Nortel Networks in the sale of its global enterprise solutions business to Avaya.

  • Barclays Capital in the purchase of Lehman Brothers’ U.S. and Canadian investment banking and capital markets businesses and its Manhattan headquarters.

  • The shareholders of J. & W. Seligman in the sale of the company to Ameriprise.

  • Financial advisors in M&A transactions, including Citigroup Global Markets and the Raine Group.

See More


March 2024: “Delaware Court of Chancery Invalidates Common Provisions in Stockholder Agreements,” Cleary M&A and Corporate Governance Watch blog (with Matthew P. Salerno, David Lopez, Adam Fleisher, Adam Brenneman, John A. Kupiec, and Mark E. McDonald)

October 2023: ”DOJ New Safe Harbor Policy for Voluntary Self-Disclosures in M&A,” Cleary Gottlieb Alert Memorandum (with Lisa Vicens, Rahul Mukhi, Abena Mainoo, David A. Last, Samuel Chang, and Cristina Mendez) 

October 2022: “The Change Healthcare Decision and Implications for Private Equity Sponsors,” Cleary Gottlieb Alert Memorandum (with David I. Gelfand, Daniel P. Culley, Matthew P. Salerno, and John A. Kupiec) 

2012: “Judge and Banker—Valuation Analyses in the Delaware Courts,” 116 Penn State Law Review 957 (with William A. Groll)

April 2012: “The El Paso/Kinder Morgan Opinion: Further Delaware Guidance on Investment Banker Sell-Side Conflicts,” The M&A Lawyer (with Victor I. Lewkow and Ethan A. Klingsberg)

February/March 2008: “Stresses on the New LBO Deal Architecture,” Pratt’s Journal of Bankruptcy Law