Arrow Financial Corporation announced the completion of its previously announced strategic acquisition of Adirondack Bancorp.
Adirondack Bancorp’s banking subsidiary, Adirondack Bank, was merged with and into Arrow Bank. Arrow Financial Corporation is the parent company of Arrow Bank National Association.
The combined company has approximately $5.4 billion in total assets, $4.8 billion in total deposits, and $4.1 billion in gross loans, based on financial information as of March 31, 2026.
The acquisition expands Arrow Bank’s footprint to 57 branches across northeastern New York and into the Mohawk Valley.
The expanded footprint includes Oneida, Herkimer, and Franklin counties, while strengthening Arrow’s commitment to Essex and Clinton counties.
In connection with the merger closing, Rocco F. Arcuri Sr., former president and CEO of Adirondack, became senior vice president and regional president for Mohawk Valley at Arrow.
Arcuri was also appointed to the Arrow Board of Directors.
Arrow said integration teams will work together over the coming months to support a seamless transition.
Customers will continue to receive personal relationship-based service and local expertise, with additional enhancements and expanded offerings becoming available as integration progresses.
Beginning July 1, customers will start seeing Arrow Bank branding at Adirondack branch locations and in customer communications.
Until banking systems are converted and integrated into Arrow Bank’s platform later in 2026, customers may continue to see the Adirondack Bank name and logo on certain documents, statements, checks, cards, and digital banking platforms during the transition.
Arrow Bank is celebrating its 175th anniversary throughout 2026.
The bank provides online and mobile banking, mortgages, commercial loans, investments, and other financial products.
Arrow Financial Corporation is headquartered in Glens Falls, New York, and provides banking, insurance, and wealth management services across northeastern New York and the Mohawk Valley.
KEY QUOTES:
“Today we proudly welcome Adirondack customers, employees and communities to the Arrow Family of Companies. This strategic acquisition brings together two highly complementary community banks with shared values, strong local roots and a commitment to helping individuals, businesses and communities thrive. Together, we are well-positioned to deliver expanded products, services and expertise while maintaining the personalized, community-focused approach that has defined our banks for generations. As Arrow celebrates its 175th anniversary, this milestone reflects our commitment to thoughtful growth expanding our market presence and creating long-term value.”
David S. DeMarco, President and CEO of Arrow Financial Corporation
“This marks the beginning of an exciting new chapter for our clients, employees and communities. I am proud to continue serving this market as Regional President and look forward to helping our clients benefit from the products, services and expanded resources that Arrow Bank provides while maintaining the local relationships they value most.”
Rocco F. Arcuri Sr., Senior Vice President and Regional President, Mohawk Valley of Arrow
