Michael Heinz

MICHAEL HEINZ has over 20 years of experience representing companies in a broad range of capital markets transactions, mergers and acquisitions and corporate governance matters, with a particular focus on public companies in the healthcare, financial services, industrials, and technology sectors.

Mike regularly represents issuers, underwriters, and investors in all types of public and private securities transactions, including high-yield and investment grade debt securities, initial public offerings (IPOs), secondary equity offerings, ATM programs, tender offers, exchange offers, and PIPE transactions. Mike has significant experience in transactions involving special purpose acquisition companies (SPACs) and serves as global co-leader of Sidley’s SPACs practice (which was recognized by Chambers USA in their 2024 and 2025 rankings).

Mike was named a BTI Client Service All-Star in 2022, which comprises lawyers whom world-leading corporate counsel recognize as service leaders. Mike has also been recognized by Legal 500 in Capital Markets: Debt and Equity Offerings and named as a “Rising Star” by Super Lawyers (2013–2019) and member of “The International A-List 2024” by India Business Law Journal.

In addition to his transactional work, Mike regularly advises publicly traded companies on a broad range of corporate and securities law matters, including SEC disclosure matters, Sarbanes-Oxley Act compliance, corporate governance best practices, fiduciary duties, stock exchange requirements and Rule 144 issues.

Representative capital markets transactions include:

• IPOs of Ardent Health, American Addiction Centers, American Commercial Lines, Bridgewater Bancshares, Century Communities, Houston Wire & Cable and Thermon Group Holdings.
• SPAC business combinations and initial listings of Banzai International, Blaize, Blue Bird, Bridger Aerospace, Canoo, Daseke, Faraday Future, MP Materials, Namib Minerals, NRC Group Holdings, Porch Group and Roadzen.
• High-yield debt offerings by Apergy, Affinity Interactive, Ardent Health Partners, Beacon Roofing Supply, Catamaran, CITGO, Commercial Metals, DaVita, Herc Holdings, OneMain/Springleaf Finance and Thermon Group Holdings.
• Investment grade debt, preferred equity and convertible notes offerings by Allscripts, Baxter International, Caterpillar, Commonwealth Edison (ComEd), Conagra Brands, eBay, Harley-Davidson, Inc., Harley-Davidson Financial Services, IDEX, Jones Lang LaSalle, MP Materials, Porch Group, TD Ameritrade, Tyson Foods and Wintrust Financial.
• Follow-on and secondary common stock offerings by Baxalta, Beacon Roofing Supply, Bridger Aerospace, Catamaran, Dean Foods, HealthStream, MP Materials, OneMain, Surgalign, Thermon Group Holdings, Ulta Salon and Washington Trust Bancorp.

Notable M&A transactions include representing the following:

• Catamaran in its US$13 billion sale to UnitedHealth and US$4.4 billion acquisition of Catalyst Health Solutions.
• Chicago Stock Exchange in its sale to Intercontinental Exchange, the parent company of the New York Stock Exchange (NYSE).
• Recall Holdings in its US$2.6 billion cross-border sale to Iron Mountain.
• Bill Me Later in its sale to eBay.

• American Bar Association
• New York State Bar Association
• National MS Society, Greater Delaware Valley Chapter