Last year, Atlantic Union and Olney-based Sandy Spring Bank announced that they had entered into a definitive merger agreement for Atlantic Union to acquire Sandy Spring in an all-stock transaction valued at approximately $1.6 billion. The acquisition was completed on April 1, 2025, creating the largest regional bank headquartered in the lower Mid-Atlantic.
On October 14, 2025, Atlantic Union Bank announced that it has completed the full integration of Sandy Spring Bank’s branches and operations, officially unifying the institutions under the Atlantic Union Bank name. Signage at the Sandy Spring bank headquarters has also officially been changed over.
Founded in 1868, Sandy Spring was headquartered in Olney, Maryland, and had $14.4 billion in assets, $11.7 billion in total deposits, and $11.5 billion in total loans as of September 30, 2024. The combined company now has total assets of $39.2 billion, total deposits of $32.0 billion, and gross loans of $29.8 billion, based on financial data from the same period. The merger expanded Atlantic Union’s Mid-Atlantic banking footprint through 53 new branch locations and nearly doubled its wealth management business, adding more than $6.5 billion in assets under management.
“Following our detailed merger integration playbook used to seek to ensure a smooth transition, our teammates have worked diligently on the data conversion and systems integration of Sandy Spring since the merger announcement last fall,” said Maria Tedesco, President and Chief Operating Officer of Atlantic Union Bank. “Not only does this successful integration result in a unified bank presence across Virginia, Maryland, North Carolina and Washington D.C., but also helps us build on our commitment to provide the conveniences, services and products that are most important to our customers.”
Atlantic Union Bank received regulatory approval for the Sandy Spring merger in February 2025 and completed the acquisition two months later. The integration marks a significant step in strengthening Atlantic Union’s presence in Maryland and solidifying its role as the leading regional bank in the lower Mid-Atlantic.
As part of the merger, Atlantic Union Bank has committed to a $9.5 billion Community Impact Plan aimed at strengthening economic growth and financial access across the communities it serves.
