UMB Financial Corporation filed a Form 425 with the SEC on October 27, 2026, disclosing social media posts announcing a definitive agreement to acquire El Dorado Savings Bank, F.S.B., a $2.4 billion institution serving customers in California and Nevada.

Key Highlights

  • Acquisition target: El Dorado Savings Bank, F.S.B., described in the filing as a $2.4 billion bank serving individuals and small businesses across California and Nevada.
  • Branch expansion: The combination would add 35 branches to UMB's existing network, according to the filing.
  • Nevada entry: The filing states the transaction "will be our first step into the Nevada market" for UMB.
  • Combined operating history: The filing notes UMB was founded in 1913 and El Dorado in 1958, totaling "181 combined years" of service.
  • Prior California expansion: Chairman and CEO Mariner Kemper referenced UMB's California presence growing through the HTLF acquisition in 2025.
  • Regulatory approval pending: The filing states UMB is "working toward regulatory approval" and will share updates in coming months.

UMB Financial's Western U.S. Expansion Through the El Dorado Acquisition

According to the Form 425 filing, UMB Financial Corporation (NASDAQ:UMBF) entered into a definitive agreement to acquire El Dorado Savings Bank, F.S.B., which the filing describes as a $2.4 billion bank with operations serving individuals and small businesses in California and Nevada. The filing characterizes the deal as a continuation of UMB's strategy to strengthen its consumer banking presence in the western United States, building on the HTLF acquisition completed in 2025 that previously expanded UMB's California footprint.

The social media posts disclosed in the filing, attributed to UMB's LinkedIn, Facebook, and Instagram channels, state that the transaction "will amplify our consumer presence, adding 35 branches to our network, strengthening our physical and brand reach across the Western U.S." Chairman and CEO Mariner Kemper, quoted in the filing, said that "the region's vibrancy, complementary customer needs and overall business growth opportunities" made California compelling for UMB's next expansion phase. Kemper also noted El Dorado's "reputation, people and expertise" and its "deep commitment to their customers and the communities they serve" as factors in the decision.

The filing includes an extensive cautionary note regarding forward-looking statements, noting that statements about the transaction are subject to risks including the possibility that "the Transaction does not close when expected or at all because required regulatory, stockholder, or other approvals and other conditions to closing are not received or satisfied on a timely basis or at all." The filing identifies additional risk factors such as changes in general economic and market conditions, interest and exchange rates, and the ability to integrate the two businesses effectively. These statements are the company's own and are subject to its cautionary language as presented in the filing.

What Was Disclosed

UMB Financial Corporation filed a Form 425 on October 27, 2026, disclosing social media announcements regarding a definitive agreement to acquire El Dorado Savings Bank, F.S.B., a $2.4 billion institution, with regulatory approval still pending at the time of filing.