Five Star Bank Executive and Leadership Team

July, 2026

Leadership Overview

Five Star Bank has 6 executives leading key functions including strategy, human resources, finance, commercial real estate, retail banking, and regional operations.

Driven by a commitment to community, Five Star Bank provides comprehensive consumer and commercial banking, investment, and insurance services, solidifying its market presence since 1850.

Leadership Roles at Five Star Bank

  • President and Chief Executive Officer - Martin Birmingham
  • Executive Vice President & Chief Financial Officer & Treasurer - W. Plants
  • Commercial Real Estate Executive & President, Mid-Atlantic - John Mangan
  • Regional President & Executive VP, Retail - John Witkowski
  • Regional President, , NY (Buffalo) - Jason Krempa
  • Chief Human Resources Officer - Laurie Collins
  • Martin Birmingham - President and Chief Executive Officer

    Martin Birmingham, the President and Chief Executive Officer at Five Star Bank, directs the overall strategic vision and operational execution for the institution. Birmingham oversees all facets of the bank's consumer and commercial banking services, investment offerings, and insurance products, ensuring alignment with the company's founding mission. This leadership role involves driving growth initiatives across all business lines and maintaining the bank's strong financial performance. By fostering a culture of integrity and customer focus, Martin Birmingham ensures the bank consistently meets the evolving needs of its clients and stakeholders. The President and Chief Executive Officer's purview extends to regulatory compliance and the cultivation of key industry partnerships, solidifying Five Star Bank's position in the financial services sector.
    Martin Birmingham

    W. Plants - Executive Vice President & Chief Financial Officer & Treasurer

    W. Plants, the Executive Vice President & Chief Financial Officer & Treasurer at Five Star Bank, manages the institution's financial health and fiscal strategy. Plants oversees all financial operations, including accounting, financial planning and analysis, treasury functions, and capital management, ensuring robust financial stewardship. This executive role is pivotal in maintaining the bank's strong balance sheet and profitability, supporting its comprehensive consumer and commercial banking services. By guiding investment strategies and managing liquidity, W. Plants ensures the bank's capacity for sustained growth and operational excellence. The Executive Vice President & Chief Financial Officer & Treasurer also plays a key part in reporting financial performance to stakeholders and regulatory bodies, upholding transparency and trust.
    W. Plants

    John Mangan - Commercial Real Estate Executive & President, Mid-Atlantic

    John Mangan, the Commercial Real Estate Executive & President, Mid-Atlantic at Five Star Bank, spearheads the bank's commercial real estate lending and portfolio management within the Mid-Atlantic region. Mangan directs business development efforts, client relationship management, and risk assessment for commercial real estate transactions, driving significant portfolio growth. This leadership position is crucial for expanding Five Star Bank's footprint and service offerings in key markets. By identifying strategic opportunities and ensuring sound underwriting practices, John Mangan contributes directly to the bank's commercial banking success. The Commercial Real Estate Executive & President, Mid-Atlantic also collaborates with other regional leaders to ensure cohesive market strategies and client service delivery across the bank's operational areas.

    John Witkowski - Regional President & Executive VP, Retail

    John Witkowski, the Regional President & Executive VP, Retail at Five Star Bank, leads the strategic direction and operational performance of the bank's retail banking division. Witkowski oversees branch network management, customer acquisition, and the delivery of consumer banking products and services, ensuring a superior customer experience. This role is fundamental to enhancing customer loyalty and expanding market share within the retail segment. By driving innovation in digital banking solutions and optimizing branch operations, John Witkowski directly supports the bank's mission to provide accessible and comprehensive financial services. The Regional President & Executive VP, Retail also fosters strong relationships with community leaders, reinforcing Five Star Bank's local presence and commitment.

    Jason Krempa - Regional President, , NY (Buffalo)

    Jason Krempa, the Regional President, , NY (Buffalo) at Five Star Bank, directs the bank's strategic initiatives and operational oversight within the Buffalo, New York region. Krempa is responsible for driving market growth, managing key client relationships, and ensuring the effective delivery of all banking services, including consumer and commercial offerings. This executive role is vital for strengthening Five Star Bank's presence and impact in the Western New York market. By cultivating local partnerships and adapting strategies to regional economic conditions, Jason Krempa ensures sustained business development and client satisfaction. The Regional President, , NY (Buffalo) also collaborates closely with other divisional leaders to maintain consistent brand standards and service excellence across the entire organization.

    Laurie Collins - Chief Human Resources Officer

    Laurie Collins, the Chief Human Resources Officer at Five Star Bank, architects the human capital strategy to support the bank's expansion and service delivery. Collins manages all aspects of workforce planning, talent acquisition, employee development, and compensation and benefits programs. This critical function ensures that Five Star Bank attracts and retains top talent essential for delivering exceptional consumer and commercial banking services. By cultivating a positive and productive work environment, Laurie Collins directly impacts employee engagement and retention, which are vital for maintaining high service standards. The Chief Human Resources Officer also champions initiatives that promote diversity and inclusion across the organization, reinforcing the bank's commitment to its community and its people.

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    Frequently Asked Questions Regarding Five Star Bank Top Executives and Leadership Team

    Who leads Five Star Bank?
    Five Star Bank is led by Martin Birmingham (President and Chief Executive Officer), along with executives such as W. Plants (Executive Vice President & Chief Financial Officer & Treasurer) and John Mangan (Commercial Real Estate Executive & President, Mid-Atlantic).
    Who is part of Five Star Bank’s executive team?
    The executive team of Five Star Bank includes leaders such as Martin Birmingham (President and Chief Executive Officer), W. Plants (Executive Vice President & Chief Financial Officer & Treasurer), John Mangan (Commercial Real Estate Executive & President, Mid-Atlantic) and other senior executives.
    How many executives does Five Star Bank have?
    Five Star Bank has 6 executives leading key business areas.
    What roles are included in Five Star Bank’s leadership team?
    The leadership team of Five Star Bank includes roles such as President and Chief Executive Officer, Executive Vice President & Chief Financial Officer & Treasurer, Commercial Real Estate Executive & President, Mid-Atlantic, Regional President & Executive VP, Retail, Regional President, , NY (Buffalo).