Fed gives final approval needed for Santander-Webster merger
Banco Santander said the U.S. Federal Reserve approved its $12.3 billion merger with Webster Financial, after approvals from the ECB and the Office of the Comptroller of the Currency. The deal would make Santander the U.S. 19th-largest bank, with $253.6 billion in assets, and is expected to close Aug. 20, 2026. Webster has about $86 billion in assets.
How this was made

The 30-second read
Why it matters
The Fed’s approval removes the final regulatory barrier, increasing deal completion probability and potentially reducing the acquirer’s merger spread and uncertainty premium.
Market read
Regulatory clearance is a concrete catalyst for merger certainty, with the article also providing a specific expected closing date (Aug. 20, 2026).
What to watch
The article does not quantify expected cost synergies, capital impacts, or integration milestones, which could dominate valuation after the regulatory hurdle is cleared.
Background
Santander’s U.S. expansion has included prior acquisitions of Sovereign Bank, with Webster Financial now the next major step.
Ticker impact
Banco Santander received final Fed approval to buy Webster Financial, clearing the last regulatory hurdle for the $12.3B merger.
Likely supportive for SAN on deal-completion probability, with follow-through tied to remaining closing mechanics and integration expectations.
The article states the Fed approval eliminates the last regulatory hurdle and cites an expected Aug. 20 close date, which directly affects deal certainty and risk premium.
Market effects
Large bank M&A clearance can improve sentiment around consolidation and regulatory throughput for other pending deals.
Strengthens Santander’s Northeast U.S. footprint via Webster’s branch network and deposit base.
Cross-border regulatory sequencing (ECB then OCC then Fed) highlights continued openness to European bank expansion into the U.S.
Counterpoint
Even with Fed approval, closing can still slip due to deal mechanics, litigation, or market conditions, so the stock reaction may fade if execution risk reappears.
Key entities
- acquirerBanco Santander
Spanish banking group receiving Fed approval to acquire Webster Financial for $12.3B.
- targetWebster Financial
Northeast regional bank being acquired by Santander; expected to close Aug. 20, 2026.
- regulatorFederal Reserve Board
Provided the final approval needed to clear the last regulatory hurdle for the merger.
- regulatorEuropean Central Bank
Signed off on the deal two weeks earlier, preceding the Fed approval.
- regulatorOffice of the Comptroller of the Currency
Gave green light in mid-June, earlier than the Fed’s final approval.




