Banco Santander Acquired Webster Bank for $12.2 Billion
The deal makes Webster Bank the largest deposit holder in Connecticut for businesses and retail clients.
Updated on Sept. 23, 2026 in Financial Services
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In August 2026, Banco Santander finalized its $12.2 billion acquisition of Webster Bank. This transaction creates a major market player with a combined 24% deposit share in Connecticut.
Why it matters
The merger allows global banking giant Santander to significantly expand its footprint in Connecticut by leveraging the strong local relationships and branch network that fueled Webster Bank's 5% year-over-year deposit growth.
Webster Bank held $42.7 billion in deposits, surpassing Bank of America’s $41.9 billion. The combined entities now control 24% of the Connecticut market, outranking M&T Bank ($19 billion), Chase ($8.9 billion), and Bankwell ($3 billion).
The players
Banco Santander
A global financial institution headquartered in Madrid with significant international scale and resources.
Webster Bank
A regional bank based in Stamford with a deep branch network across Connecticut and a history of organic deposit growth.
Bank of America
A major national financial institution serving as the primary benchmark for bank deposits in the Connecticut market.
The details
The merger unites Webster Bank’s existing 95-branch network in Connecticut with the global scale of Madrid-based Banco Santander. Despite the acquisition, Webster Bank will continue to operate under its existing brand, and Santander has confirmed no current plans to close any of the acquired branch locations.
Timeline
1935: Webster Bank was founded in Waterbury, Connecticut.
2009: Santander acquired Sovereign Bank.
2022: Webster Bank completed its merger with Sterling National Bank.
June 30, 2026: FDIC data reporting date for bank deposits.
August 2026: The acquisition of Webster Bank by Banco Santander closed.
Market Landscape
This deal follows the pattern set by the 2022 merger of Webster Bank and Sterling National Bank, signaling continued consolidation in regional finance. The move shifts the competitive dynamics in Connecticut, pushing the largest player to a global parent structure.
Connecticut businesses should monitor whether branch-level service standards shift under Santander’s global operations. Given the change in parent company, operators should evaluate if their current lending terms and deposit products remain the most competitive available in the state.
The takeaway
The acquisition marks a major change in local banking competition that demands a review of your current institutional banking relationships. Monitor future updates regarding branch availability and potential adjustments to product offerings following the post-merger integration.
Further reading
For more on shifts in the local market, see Financial Services.
Source note: This article includes information reported by CT Insider.
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