HA Sustainable Infrastructure Capital, Inc. (NYSE: HASI), a leading investor in sustainable infrastructure assets, today announced four executive leadership appointments, effective March 1, 2025.

“I am pleased to announce these management changes, highlighting the contributions of high-performing teammates, each of whom has been with HASI for more than eight years,” said Jeffrey A. Lipson, HASI President & CEO. “Marc, Chuck, Nate, and Michelle embody the vision, expertise, determination, and diligence essential to driving HASI’s resilient business forward. Our deep talent pool continues to be a cornerstone of our success, and I am fully confident that these leaders will thrive in their new roles.”

• Marc T. Pangburn, currently Executive Vice President and Chief Financial Officer, will assume the role of Chief Revenue & Strategy Officer. Mr. Pangburn joined HASI in 2013 and was Co-Chief Investment Officer before serving as CFO for the past two years. During his tenure as CFO, Mr. Pangburn oversaw several transformative developments, including the company’s CarbonCount Holdings LLC (CCH1) co-investment partnership with KKR and HASI’s upgrade to investment grade debt issuer. Marc has played a pivotal role in nearly every aspect of the business and, in his new role, will lead the investment and portfolio teams, as well as strategic transactions, including asset management activities.
• Charles “Chuck” W. Melko, currently Senior Vice President, Chief Accounting Officer and Treasurer will assume the role of Executive Vice President, Chief Financial Officer and Treasurer. Mr. Melko joined HASI in 2016, assumed the role of Chief Accounting Officer in 2017, and incrementally became Treasurer in 2021. During his tenure, Mr. Melko has overseen substantial growth in the complexity of our financial reporting and has successfully overseen numerous bank debt and capital markets transactions.
• Nathaniel “Nate” J. Rose, currently Executive Vice President and Chief Investment Officer, will assume the role of Senior Managing Director, Investments. Since joining HASI in 2000, Mr. Rose has held numerous senior roles and played a pivotal role in the vast majority of transactions closed by the company, contributing to the company’s growth in managed assets to approximately $14 billion. Mr. Rose has expressed his desire to continue at HASI in a reduced role while remaining an integral contributor to the company’s ongoing success.
• Michelle E. Whicher, currently Senior Vice President and Controller, will assume the role of Chief Accounting Officer. Ms. Whicher joined HASI in 2014 and became Controller in 2021. Throughout her tenure with the company, Ms. Whicher has demonstrated exceptional performance in multiple roles, including leading critical accounting and reporting functions during a period of rapid platform growth.