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Cooper Warner

Cooper Warner

Director, Mergers & Acquisitions

Chicago skyline

About Cooper

Cooper Warner is a director in the M&A group for William Blair based in the firm’s Chicago office. Cooper leads public company coverage and execution for businesses positioned in the technology and tech enabled services sectors. He has more than 13 years of experience advising public and private companies on matters involving M&A, activism defense/stakeholder engagement, business separations, corporate strategy, capital structure, and capital allocation. Prior to William Blair, Cooper worked at several investment banks in both Chicago and New York, including Rothschild and Lazard.

Notable Transactions

  • $1,300,000,000

    have agreed to acquire

    Pending

  • $2,500,000,000

    has agreed to be acquired by

    Pending

  • $3,300,000,000

    has been acquired by

    October 2025

  • Not Disclosed

    portfolio companies of Battery Ventures

    have merged

    June 2025

  • $145,000,000

    has been acquired by

    March 2025

  • $162,000,000

    Special Committee of the Board

    has been acquired by

    November 2024

  • $200,000,000

    has acquired

    October 2024

  • CAD$250,000,000

    has acquired

    May 2024

  • $630,000,000

    has merged with

    April 2024

    William Blair & Company acted as the exclusive financial advisor to Powerfleet (Nasdaq: PWFL) in connection with its pending all-stock merger with MiX Telematics (NYSE: MIXT; JSE: MIX).

    Read more
  • Not Disclosed

    has agreed to divest its
    subsidiary BankCard USA to

    Pending

  • $670,000,000

    Hospitals and Large Physician Practices Business

    has been acquired by

    May 2022

  • $360,000,000

    has been acquired by

    April 2022

  • Rigorous pursuit of your success. Every transaction. Every time.

    Our investment bankers are 100 percent committed to your organization’s sustained success. By drawing on our deep industry and product experience as well as our dedicated global resources, we provide advisory and financing services that allow you to capitalize on today’s opportunities and anticipate tomorrow’s challenges.

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    Mergers & Acquisitions

    Publicly traded and privately held companies around the globe count on our M&A Advisory Group for comprehensive financial advisory services and expert guidance. We serve buyers and sellers by providing in-depth financial and strategic analysis, identifying optimal potential transaction partners, developing creative deal structures, and negotiating complex transaction terms.

    Our long record, leadership position in the middle market, and high level of transaction activity enable us to clear the market globally in search of the best transaction partners. Our bankers are true experts in your industry and understand the competitive landscape and deal environment facing our clients.

    More about our M&A expertise
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    About William Blair

    William Blair is a premier global partnership with expertise in investment banking, investment management, and private wealth management. We provide advisory services, strategies, and solutions to meet our clients’ evolving needs. As an independent and employee-owned firm, together with our strategic partners, we operate in more than 20 offices worldwide.*

    • 1935

      Year William Blair was founded

    • 2,000+

      Employees worldwide

    • 145 billion+

      Client assets

    • 90 Years

      Independent and employee-owned

    • 20+

      Offices worldwide

    • 650+

      Companies under coverage

    As of June 30, 2025
    *Includes strategic partnerships with Allier Capital, BDA Partners, and Poalim Capital Markets.

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