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Castle Creek Capital Acquires FirstSun Capital Bancorp, Parent of Sunflower Bank

FirstSun Capital Bancorp (aka Sunflower Bank, N.A.) acquired by Castle Creek Capital

AcquisitionUSD40,000,000

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FirstSun Capital Bancorp (aka Sunflower Bank, N.A.) logo
Acquired

FirstSun Capital Bancorp (aka Sunflower Bank, N.A.)

Banking

Deal value

USD40,000,000

December 4, 2025

Castle Creek Capital logo
Acquirer

Castle Creek Capital

Financial Services

Castle Creek Capital has acquired FirstSun Capital Bancorp, the holding company for Sunflower Bank, N.A., for $40,000,000. FirstSun Capital Bancorp operates as Sunflower Bank and First National 1870, providing a comprehensive range of relationship-focused financial services including personal, business, and wealth management solutions. The bank, with roots tracing back to 1870 and 1892, emphasizes innovative solutions and localized decision-making to meet customer financial objectives across its expanding footprint.

Castle Creek Capital, a financial investment firm, has undertaken this acquisition as a strategic move to strengthen its presence within the banking sector. The firm's interest in FirstSun Capital Bancorp is aimed at leveraging the bank's established market presence and long-standing customer relationships. This investment is anticipated to provide FirstSun Capital Bancorp with additional resources to enhance its ability to innovate and expand its service offerings across personal, business, and wealth management divisions.

Expected synergies from this acquisition include enhanced operational efficiencies and expanded strategic support for Sunflower Bank, N.A. The integration with a capital firm is poised to accelerate technological advancements and potentially broaden the bank's financial product suite. This combination is designed to support FirstSun Capital Bancorp's enduring commitment to its communities and customers while fostering continued organic and inorganic growth.

This corporate acquisition represents a significant shift in ownership for FirstSun Capital Bancorp. The combined entity is projected to capitalize on FirstSun's deep-rooted community ties and relationship-based banking model, now bolstered by Castle Creek Capital's financial backing and strategic insight. The outlook suggests a strengthened competitive position for the bank in its operational regions, enabling it to better serve its diverse clientele with an expanded capacity for innovation.

Buying signals & intent

Our AI suggests FirstSun Capital Bancorp (aka Sunflower Bank, N.A.) may be interested in:

Core Banking System / Bank Platform
Commercial Lending & Loan Origination Software
Treasury Management Software
Online & Mobile Banking Platform
Payment Processing & Merchant Services
CRM for Financial Services
Fraud Detection & AML Software
Compliance & Regulatory Reporting Solutions

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