Mark Willis
Mark Willis is a Partner, Treasurer, and General Counsel at Hudson Bay Capital. As Treasurer, he focuses on balance sheet optimization, liquidity management, leverage, and counterparty relationships. As General Counsel, he oversees a team responsible for negotiating financing arrangements, counterparty trading agreements, transactions, and employment matters.
Prior to joining Hudson Bay in 2015, Mr. Willis was at Bank of America Merrill Lynch (BAML), where he held several roles from 2002–2015. He began as Global Counsel to the financing and trading businesses, managing a global team across equity and fixed income divisions focused on regulatory issues, new product development, and trading agreements. In 2009, he became a Managing Director within the Prime Brokerage and Financing businesses, serving as Global Head of Client Solutions, Non-Market Risk, Client Integration, and Product Development. Prior to BAML, he worked as derivatives, trading, and financing counsel at Credit Suisse from 2000–2002 and UBS (formerly PaineWebber) from 1995–2000.
Mr. Willis received a JD from St. John’s University School of Law and a BS in Accounting, magna cum laude, from St. John’s University. He earned his CPA license while working at Ernst & Young in the financial services practice.
Our Leadership
Hudson Bay’s environment reflects leadership and continuity built over more than two decades.
We are an investor-led, cycle-tested firm whose leadership team has navigated multiple market dislocations together. That experience is matched by an environment that values creativity, adaptability, and continuous evolution, preserving institutional knowledge while encouraging innovation.
