Bank OZK Executive and Leadership Team

October, 2026

Leadership Overview

Bank OZK has 10 executives leading key functions including corporate strategy, financial oversight, commercial lending, and regional market expansion.

Focused on delivering comprehensive retail and commercial banking solutions, Bank OZK maintains a commitment to financial stability and diverse lending products that support economic growth across various sectors.

Leadership Roles at Bank OZK

  • Chairman & Chief Executive Officer - George Gleason
  • President & Chief Executive Officer - Robert Marziano
  • Chief Financial Officer - Tim Hicks
  • Division President, Homebuilder Finance - Randy Whitaker
  • President, Market, Commercial Banking (Houston) - Neil Ridgley
  • President, Commercial Banking, Florida - Jeremy Fioravanti
  • Division President (Austin, SAN Antonio) - Gregory Garner
  • Managing Director - Greg Berg
  • Managing Director - Jack Gracheck
  • Managing Director - Lucas Posson
  • George Gleason - Chairman & Chief Executive Officer

    George Gleason, the Chairman & Chief Executive Officer at Bank OZK, directs the overarching corporate strategy and long-term vision for the institution. Overseeing the entire organizational structure, the Chairman & Chief Executive Officer ensures alignment between retail banking operations and commercial lending objectives. This leadership role involves managing complex capital allocation and maintaining rigorous risk management standards across all business units. By fostering a culture of disciplined growth, George Gleason directly impacts the market position of the firm. Ultimately, Gleason secures the financial health of the organization while navigating the evolving landscape of the banking industry to provide consistent value to shareholders and clients alike.
    George Gleason

    Robert Marziano - President & Chief Executive Officer

    Robert Marziano, the President & Chief Executive Officer at Bank OZK, executes daily operational mandates and drives the implementation of core banking initiatives. Managing the integration of deposit products and lending services, the President & Chief Executive Officer optimizes internal processes to enhance service delivery. This role requires constant coordination with department heads to ensure that business purpose loans and consumer accounts meet regulatory requirements. Through the application of strategic oversight, Robert Marziano strengthens the operational efficiency of the bank. Marziano maintains a focus on scaling the institution's reach while upholding the high standards of service that define the company's reputation in the competitive financial sector.

    Tim Hicks - Chief Financial Officer

    Tim Hicks, the Chief Financial Officer at Bank OZK, directs the financial planning, reporting, and treasury functions of the organization. Overseeing the balance sheet and capital management strategies, the Chief Financial Officer ensures that the bank maintains sufficient liquidity to support its extensive lending operations. This role involves communicating financial performance to the Board and investors while managing the firm's tax and regulatory reporting obligations. By implementing advanced financial modeling, Tim Hicks provides the data-driven insights necessary for strategic decision-making across the executive team. Hicks maintains a focus on optimizing the cost of funds and maximizing net interest margins, thereby securing the long-term profitability and stability of the institution.

    Randy Whitaker - Division President, Homebuilder Finance

    Randy Whitaker, the Division President, Homebuilder Finance at Bank OZK, leads the strategic expansion of lending services tailored to the residential construction industry. Overseeing a portfolio of affordable housing and homebuilder loans, the Division President, Homebuilder Finance ensures that the bank provides critical capital for large-scale development projects. This role involves assessing market demand for new housing and managing the risk associated with construction cycles. By fostering relationships with major developers, Randy Whitaker drives the growth of the bank's real estate lending division. Whitaker maintains a focus on project viability and credit discipline, ensuring that the institution remains a primary partner for builders across the national market.

    Neil Ridgley - President, Market, Commercial Banking (Houston)

    Neil Ridgley, the President, Market, Commercial Banking (Houston) at Bank OZK, directs all commercial banking activities within the Houston metropolitan area. Overseeing the local team of relationship managers, the President, Market, Commercial Banking (Houston) ensures that businesses receive tailored deposit and lending solutions. This leadership role involves identifying regional growth opportunities and expanding the bank's presence in the competitive Texas market. By leveraging deep local market knowledge, Neil Ridgley drives the acquisition of new commercial clients and the retention of existing accounts. Ridgley coordinates with corporate leadership to align regional performance with the bank's broader objectives, ensuring that the Houston market contributes significantly to the overall success of the institution.

    Jeremy Fioravanti - President, Commercial Banking, Florida

    Jeremy Fioravanti, the President, Commercial Banking, Florida at Bank OZK, manages the commercial banking operations across the Florida region. Overseeing the delivery of complex financial products, the President, Commercial Banking, Florida ensures that the bank meets the diverse needs of the local business community. This role involves driving business development efforts and managing the credit quality of the regional loan portfolio. By cultivating strong ties with local industry leaders, Jeremy Fioravanti enhances the visibility and influence of the bank in the Florida market. Fioravanti executes strategies that prioritize sustainable growth and client satisfaction, ensuring that the regional operations remain a key driver of the bank's overall commercial success.
    Jeremy Fioravanti

    Gregory Garner - Division President (Austin, SAN Antonio)

    Gregory Garner, the Division President (Austin, SAN Antonio) at Bank OZK, leads the strategic growth of banking services in the Austin and San Antonio markets. Overseeing the expansion of commercial and retail banking footprints, the Division President (Austin, SAN Antonio) ensures that the bank provides high-quality financial solutions to a rapidly growing client base. This leadership role involves managing regional operations and coordinating with corporate teams to implement new product offerings. By focusing on market penetration and client relationship management, Gregory Garner drives the performance of these key Texas markets. Garner maintains a commitment to operational excellence, ensuring that the bank remains a trusted financial partner for businesses and individuals in the region.

    Greg Berg - Managing Director

    Greg Berg, the Managing Director at Bank OZK, architects specialized financing solutions within the commercial and industrial lending portfolio. Overseeing complex credit structures, the Managing Director ensures that business aviation and subscription financing services remain competitive and profitable. This leadership role involves analyzing market trends to identify new opportunities for capital deployment across diverse industries. By managing high-value client relationships, Greg Berg directly contributes to the expansion of the bank's commercial footprint. Berg maintains a rigorous approach to credit quality, ensuring that all lending activities align with the broader risk appetite of the institution while supporting the financial needs of corporate clients.

    Jack Gracheck - Managing Director

    Jack Gracheck, the Managing Director at Bank OZK, drives the development of indirect lending programs, specifically focusing on recreational vehicle and marine financing. Overseeing the performance of these niche portfolios, the Managing Director ensures that underwriting standards remain robust while capturing market share. This role involves collaborating with internal teams to streamline loan processing and improve the customer experience for consumer borrowers. By optimizing the efficiency of these specialized lending channels, Jack Gracheck supports the diversification of the bank's asset base. Gracheck monitors economic indicators to adjust lending strategies, ensuring that the institution remains resilient and responsive to changing consumer demand in the recreational finance market.

    Lucas Posson - Managing Director

    Lucas Posson, the Managing Director at Bank OZK, manages the strategic deployment of government guaranteed and agricultural loan products. Overseeing the lifecycle of these specialized assets, the Managing Director ensures compliance with federal guidelines while expanding access to credit for rural and small business clients. This leadership role involves building partnerships with local stakeholders to identify growth opportunities in the agricultural sector. By refining the credit assessment models for these specific loan types, Lucas Posson enhances the quality of the bank's loan portfolio. Posson drives initiatives that support economic development, ensuring that the institution provides essential financial resources to businesses that form the backbone of the regional economy.

    Explore Leadership Teams in Banking

    Frequently Asked Questions Regarding Bank OZK Top Executives and Leadership Team

    Who leads Bank OZK?
    Bank OZK is led by George Gleason (Chairman & Chief Executive Officer), along with executives such as Robert Marziano (President & Chief Executive Officer) and Tim Hicks (Chief Financial Officer).
    Who is part of Bank OZK’s executive team?
    The executive team of Bank OZK includes leaders such as George Gleason (Chairman & Chief Executive Officer), Robert Marziano (President & Chief Executive Officer), Tim Hicks (Chief Financial Officer) and other senior executives.
    How many executives does Bank OZK have?
    Bank OZK has 10 executives leading key business areas.
    What roles are included in Bank OZK’s leadership team?
    The leadership team of Bank OZK includes roles such as Chairman & Chief Executive Officer, President & Chief Executive Officer, Chief Financial Officer, Division President, Homebuilder Finance, President, Market, Commercial Banking (Houston).