Jump to the top of the page
Cooper Warner

Cooper Warner

Director, Mergers & Acquisitions

Chicago skyline

About Cooper

Cooper Warner is a director for William Blair based in the firm's Chicago office. Cooper has more than 10 years of experience advising public and private company clients across a variety of sectors on matters involving M&A, activism defense and stakeholder engagement, business separations, corporate strategy, capital structure, and capital allocation. Prior to joining William Blair, Cooper worked at several investment banks in both Chicago and New York, including Rothschild & Co and Lazard Frères.

Cooper earned his Bachelor of Science in economics with a concentration in finance from Duke University.

Notable Transactions

  • Cascades - sale of majority ownership interest in Reno de Medici to Apollo Global Management
  • Laird Performance Materials - sale to DuPont
  • Sonoco - sale of U.S. Display and Packaging business to Hood Container Corporation
  • Sonoco - sale of European Contract Packaging business to Prairie Industries
  • Archer Daniels Midland Company - acquisition of Neovia
  • Landauer - sale to Fortive Corporation
  • ModernHEALTH - sale to Kroger
  • Acadia Healthcare - acquisition of Priority Group
  • Acadia Healthcare - Acquisition of CRC Health Group
  • Buffalo Wild Wings - activism defense and proxy fight

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.

More about investment banking at William Blair
Aerial view of highway interchange at night

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
William Blair Lobby

About William Blair

William Blair is a premier global boutique 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

  • 1,900+

    Employees worldwide

  • 149 billion+

    Client assets

  • 89 Years

    Independent and employee-owned

  • 20+

    Offices worldwide

  • ~650

    Companies under coverage

As of September 30, 2024
*Includes strategic partnerships with Allier Capital, BDA Partners, and Poalim Capital Markets.

More about William Blair affiliated entities

This content is for informational and educational purposes only and not intended as investment advice or a recommendation to buy or sell any security. Investment advice and recommendations can be provided only after careful consideration of an investor's objectives, guidelines, and restrictions.

Copyright © 2024 William Blair & Company, L.L.C. | Privacy Terms

Are you sure you want to leave?

Information contained on the internet is not subject to William Blair & Company's control or review, and may not be accurate.

For disclosure information, please visit www.williamblair.com/disclosures