
Corporate M&A
Corporate Governance
Capital Markets
Technology
Healthcare
Shareholder Activism
Gary D. Gerstman is a Partner at Sidley Austin, based in Chicago, Illinois. With over 25 years of experience, he specializes in mergers and acquisitions, corporate governance, and capital markets transactions, particularly within the technology and healthcare sectors. Gary has been recognized by IFLR1000 for his work in M&A and regularly advises NYSE and NASDAQ issuers on corporate governance and SEC disclosure matters. He has worked with prominent companies such as Aon plc, CDW Corporation, eBay Inc., and PayPal Holdings, Inc. Gary also serves as a liaison to the NACD Chicago Chapter and is a frequent speaker at NACD events.
Public Company M&A Transactions
Private Company M&A Transactions
Strategic Investments and Joint Ventures
Technology and Healthcare Alliances

- Waltz Health merged with EVERSANA as part of a merger on not available. - Deal value was 3600000000 (source: AI Estimation) Sector: Healthcare; Location: USA. - On the seller side, not available advised, led by Gary Gerstman, Jeff Wysong, Jessica Day, Suzanna Lewis, Samantha Hughes, Suresh Advani, Alice Qin, Gregory Marrs, Christian Pilhofer, Alexandra Peterson, Lindsay Fisher-McFarland, Donielle McCutcheon, Teresa Reuter, Mary Marks, Alyssa Hartley.
Aug 26 2025
4B
M&A

Partner
1992 – Unknown

- Ryan Specialty acquired the target/assets from Velocity Risk Underwriters, LLC in a acquisition on not available. - Deal value was 525000000 Sector: Insurance; Location: USA. - On the acquirer side, not available advised, led by Matthew D. Stoker, Gary D. Gerstman, Dustin B. Page, Adam Runcorn, Fran S. Gray, Reed M. Kreger, Scott A. Gregus, Brad I. McGee, Juan Arendse, Maggie E. Jokinen, Andrew Lecky, Ryan Martin, Christian E. Pilhofer, Tom Topping, Madeline Clasen, Andrew R. Holland, James Phythian-Adams, Christophe H. Burusco, Michael D. Devins, Scott J.F. Goldstein, K.C. Nipper, Hannie Syeda, Riley E. Arnold, Saranda Vitia Rickett, Robert W. Maneke, Cathryn Le Regulski, Peter McCorkell, Rebecca Stuart, Alex Down, Sara E. Salmonson, Ash Nagdev, Sasha Hondagneu-Messner, Kiana Boroumand, Elizabeth K. McCloy, Brandon Bryer, Suresh T. Advani, Jennifer Waclawik, E. Kyle Barnett, Dusan Clark.
Jan 08 2025
525M
M&A
Aug 2

2 min