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by Legal Desire
31 July 2026

Sidley Represents BOX Exchange in US$2.3 Billion Strategic Combination With MEMX

Advising firms

Deal team

18 lawyers named
LawyerFirmSeniorityPracticeOffice
Matthew Stoker Lead Sidley Not stated M&A and Private Equity Not stated
Mike Heinz Lead Sidley Not stated M&A and Private Equity Not stated
Andrew Blake Lead Sidley Not stated Securities Enforcement and Regulatory Not stated
David Petron Lead Sidley Not stated Securities Enforcement and Regulatory Not stated
Jeff Wysong Sidley Not stated M&A and Private Equity Not stated
Jerome Hughes Sidley Not stated M&A and Private Equity Not stated
Danielle Sismour Sidley Not stated M&A and Private Equity Not stated
Brad McGee Sidley Not stated M&A and Private Equity Not stated
Andrew Brown Sidley Not stated M&A and Private Equity Not stated
Joe McGowan Sidley Not stated M&A and Private Equity Not stated
Caterina Faya Sidley Not stated M&A and Private Equity Not stated
Jim Ducayet Sidley Not stated Securities and Shareholder Litigation Not stated
Steven Sexton Sidley Not stated Securities and Shareholder Litigation Not stated
Charles A. Sommers Sidley Not stated Securities Enforcement and Regulatory Not stated
Michael Ogershok Sidley Not stated Securities Enforcement and Regulatory Not stated
Christian E. Pilhofer Sidley Not stated Employee Benefits and Executive Compensation Not stated
Terri Reuter Sidley Not stated Labor, Employment and Immigration Not stated
Jonathan Westreich Sidley Not stated Tax Not stated

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Stated terms

Stated value
USD 2.30bn (US$2.3 billion)
What the figure measures
Total transaction value
Client
BOX Exchange, LLCSell-side
Counterparties
Members Exchange (MEMX) (Buy-side)
TMX Group Limited (Investor)