OCC Executive and Leadership Team

June, 2026

Leadership Overview

OCC has 10 executives leading key functions including strategy, finance, technology, operations, and market development.

Driven by robust risk management, OCC provides essential central counterparty clearing and settlement services, underpinning the stability and efficiency of the derivatives markets.

Leadership Roles at OCC

  • Chief Executive Officer - Andrej Bolkovic
  • Chief Financial Officer - Frank Larocca
  • Deputy Chief Financial Officer & Controller - Scott Martyn
  • Chief Operating Officer - Daniel Busby
  • President - Nikolas Otteson
  • Chapter President - Gary Denison
  • Chief Information Officer - Raymond Tamayo
  • Chief of Staff - Rebecca Porterfield
  • Chief Technology Officer - Ric Olympia
  • Principal, Office of the Chief Information Officer - Heather Mosny
  • Andrej Bolkovic - Chief Executive Officer

    Andrej Bolkovic, the Chief Executive Officer at OCC, directs the overall strategic vision and operational execution for the organization. This leadership role involves guiding the company's expansion into new markets and ensuring robust risk management frameworks are in place to support the derivatives industry. Bolkovic oversees the integration of advanced technologies to enhance clearing and settlement processes, directly impacting market efficiency and participant confidence. The Chief Executive Officer's responsibilities extend to fostering key relationships with regulatory bodies and industry stakeholders, ensuring OCC's continued role as a vital financial market utility. Andrej Bolkovic drives the company's commitment to innovation and operational excellence, maintaining OCC's position as a trusted central counterparty.

    Frank Larocca - Chief Financial Officer

    Frank Larocca, the Chief Financial Officer at OCC, manages all financial operations, including accounting, treasury, and financial planning and analysis. This executive directs the company's capital structure and ensures financial resilience, critical for a central counterparty. Larocca oversees the development and implementation of financial strategies that support OCC's mission of providing secure clearing and settlement services. The Chief Financial Officer's purview includes managing relationships with financial institutions and investors, ensuring transparency and adherence to regulatory financial standards. Frank Larocca's leadership ensures the financial integrity of OCC, enabling the company to effectively manage risk and support the stability of the derivatives markets.

    Scott Martyn - Deputy Chief Financial Officer & Controller

    Scott Martyn, the Deputy Chief Financial Officer & Controller at OCC, supports the Chief Financial Officer in managing the company's financial health and reporting integrity. This role involves overseeing accounting operations, financial controls, and regulatory financial reporting, ensuring accuracy and compliance. Martyn directs the internal control environment, safeguarding assets and ensuring the reliability of financial statements. The Deputy Chief Financial Officer & Controller's responsibilities include managing the financial close process, developing financial policies, and supporting audits. Scott Martyn's meticulous oversight of financial functions is critical to maintaining OCC's financial transparency and stability as a central counterparty.

    Daniel Busby - Chief Operating Officer

    Daniel Busby, the Chief Operating Officer at OCC, directs the day-to-day operational activities essential for the company's clearing and settlement functions. This leadership position involves overseeing the efficiency and effectiveness of critical business processes, ensuring seamless execution of market operations. Busby manages the operational risk framework, implementing controls to mitigate potential disruptions and maintain market integrity. The Chief Operating Officer's responsibilities include optimizing resource allocation, driving operational excellence, and ensuring compliance with industry regulations across all operational units. Daniel Busby's strategic management of operations is fundamental to OCC's ability to provide reliable and secure services to its participants.
    Daniel Busby

    Nikolas Otteson - President

    Nikolas Otteson, the President at OCC, holds a significant leadership position overseeing key strategic areas and driving organizational growth. This executive directs the development and implementation of business strategies aimed at expanding OCC's market reach and enhancing its service offerings. Otteson leads initiatives focused on operational efficiency and innovation, ensuring the company remains competitive in the financial services sector. The President's responsibilities include fostering strong relationships with industry partners and stakeholders, advocating for the company's mission. Nikolas Otteson's leadership is instrumental in guiding OCC's strategic direction and ensuring its continued success in providing essential clearing and settlement services.

    Gary Denison - Chapter President

    Gary Denison, the Chapter President at OCC, leads specific regional or functional chapters, driving engagement and strategic alignment within those units. This role involves overseeing chapter operations, fostering member participation, and ensuring the chapter's activities support the broader organizational goals. Denison directs initiatives aimed at enhancing the chapter's impact and visibility within its designated area. The Chapter President's responsibilities include managing chapter resources, coordinating events, and representing the chapter in broader organizational discussions. Gary Denison's leadership ensures the effective functioning and strategic contribution of the chapter to OCC's overall mission.

    Raymond Tamayo - Chief Information Officer

    Raymond Tamayo, the Chief Information Officer at OCC, leads the technology strategy and execution for the organization's critical infrastructure. This role involves overseeing the development and maintenance of secure, scalable, and resilient technology systems that support central counterparty clearing and settlement services. Tamayo directs the cybersecurity initiatives, safeguarding sensitive data and ensuring operational continuity against evolving threats. The Chief Information Officer's responsibilities include driving digital transformation efforts, enhancing system performance, and ensuring compliance with all relevant technology regulations. Raymond Tamayo's expertise ensures OCC's technology platforms meet the demanding requirements of the financial services industry, supporting market integrity and efficiency.

    Rebecca Porterfield - Chief of Staff

    Rebecca Porterfield, the Chief of Staff at OCC, provides strategic support and operational coordination across executive functions. This role involves managing key initiatives, facilitating cross-departmental collaboration, and ensuring alignment with the company's strategic objectives. Porterfield oversees the execution of special projects and drives process improvements to enhance organizational efficiency. The Chief of Staff's responsibilities include preparing executive communications, managing board relations, and ensuring seamless information flow between leadership and operational teams. Rebecca Porterfield's strategic oversight and operational management are crucial for maintaining the effectiveness and agility of OCC's leadership team in supporting its central counterparty functions.

    Ric Olympia - Chief Technology Officer

    Ric Olympia, the Chief Technology Officer at OCC, drives the technological innovation and architecture that underpins OCC's clearing and settlement services. This executive leads the development of cutting-edge technology solutions designed to enhance system performance, scalability, and security. Olympia oversees the research and implementation of emerging technologies, ensuring OCC remains at the forefront of financial technology. The Chief Technology Officer's focus includes architecting robust platforms that support the complex demands of the derivatives market, ensuring reliability and efficiency. Ric Olympia's technical leadership is pivotal in advancing OCC's technological capabilities, reinforcing its role as a secure and efficient central counterparty.

    Heather Mosny - Principal, Office of the Chief Information Officer

    Heather Mosny, the Principal, Office of the Chief Information Officer at OCC, provides critical support and strategic execution within the technology division. This role involves managing key technology initiatives, coordinating project timelines, and ensuring alignment between IT strategy and business objectives. Mosny facilitates communication and collaboration across technology teams, driving efficiency and effective problem-solving. The Principal, Office of the Chief Information Officer's responsibilities include overseeing technology governance, managing vendor relationships, and supporting the implementation of new systems. Heather Mosny's contributions are vital to the successful execution of the Chief Information Officer's vision for OCC's technology infrastructure.

    Explore Leadership Teams in Credit Card Processing

    Frequently Asked Questions Regarding OCC Top Executives and Leadership Team

    Who leads OCC?
    OCC is led by Andrej Bolkovic (Chief Executive Officer), along with executives such as Frank Larocca (Chief Financial Officer) and Scott Martyn (Deputy Chief Financial Officer & Controller).
    Who is part of OCC’s executive team?
    The executive team of OCC includes leaders such as Andrej Bolkovic (Chief Executive Officer), Frank Larocca (Chief Financial Officer), Scott Martyn (Deputy Chief Financial Officer & Controller) and other senior executives.
    How many executives does OCC have?
    OCC has 10 executives leading key business areas.
    What roles are included in OCC’s leadership team?
    The leadership team of OCC includes roles such as Chief Executive Officer, Chief Financial Officer, Deputy Chief Financial Officer & Controller, Chief Operating Officer, President.