Comcast Advertising Executive and Leadership Team

November, 2026

Leadership Overview

Comcast Advertising has 4 executives leading key functions including financial strategy, operational efficiency, and executive leadership.

Focused on advancing television and digital video technology, Comcast Advertising delivers sophisticated programmatic solutions and cross-platform campaign management to empower media companies, agencies, and advertisers across the global marketplace.

Leadership Roles at Comcast Advertising

  • Chief Financial Officer - John Wimmenauer
  • Comcast Advertising Senior VP & Chief Financial Officer - Karen Seminara
  • Chief Operating Officer, Comcast Advertising - Gina Mingioni
  • President, Comcast Advertising - James Rooke
  • John Wimmenauer - Chief Financial Officer

    John Wimmenauer, the Chief Financial Officer at Comcast Advertising, directs all fiscal planning and capital allocation strategies. Overseeing the financial health of the advertising technology division, the Chief Financial Officer ensures rigorous budget management and long-term investment alignment. This leadership role involves analyzing market trends to optimize revenue streams across television and digital video platforms. By implementing robust financial controls, John Wimmenauer directly impacts the scalability of programmatic ad technology. Wimmenauer maintains close collaboration with the executive team to support sustainable growth initiatives. Through precise forecasting and risk assessment, the Chief Financial Officer secures the necessary resources for innovation. Wimmenauer drives the financial architecture required to maintain a competitive edge in the rapidly evolving advertising landscape, ensuring that every dollar invested supports the broader mission of delivering advanced audience targeting solutions to global media partners and advertisers.
    John Wimmenauer

    Karen Seminara - Comcast Advertising Senior VP & Chief Financial Officer

    Karen Seminara, the Comcast Advertising Senior VP & Chief Financial Officer at Comcast Advertising, manages complex financial reporting and corporate governance structures. Overseeing the integration of financial data across the organization, the Comcast Advertising Senior VP & Chief Financial Officer ensures transparency and compliance with industry standards. This leadership role involves evaluating the economic impact of cross-platform campaign management tools. By streamlining internal accounting processes, Karen Seminara directly supports the operational efficiency of the advertising division. Seminara coordinates with external stakeholders to provide clear insights into the fiscal performance of the company. Through strategic oversight of capital expenditures, the Comcast Advertising Senior VP & Chief Financial Officer facilitates the development of new advertising technologies. Seminara drives the financial strategy necessary to sustain market leadership, ensuring that the organization remains agile while navigating the complexities of the modern digital video advertising ecosystem.

    Gina Mingioni - Chief Operating Officer, Comcast Advertising

    Gina Mingioni, the Chief Operating Officer, Comcast Advertising at Comcast Advertising, directs the internal business processes and organizational workflows. Overseeing the execution of programmatic ad technology deployments, the Chief Operating Officer, Comcast Advertising ensures seamless integration between media companies and advertising platforms. This leadership role involves optimizing the delivery of advanced audience targeting solutions to maximize client value. By refining operational procedures, Gina Mingioni directly enhances the speed and reliability of cross-platform campaign management. Mingioni collaborates with technical teams to align product development with market demands. Through the implementation of scalable infrastructure, the Chief Operating Officer, Comcast Advertising supports the expansion of service capabilities. Mingioni drives operational excellence across the organization, ensuring that every internal function contributes to the successful delivery of high-performance advertising solutions for a diverse range of global media partners and advertisers.

    James Rooke - President, Comcast Advertising

    James Rooke, the President, Comcast Advertising at Comcast Advertising, architects the overarching vision and strategic direction for the entire advertising technology division. Overseeing the expansion of programmatic capabilities and cross-platform solutions, the President, Comcast Advertising ensures the company maintains a dominant position in the television and digital video market. This leadership role involves fostering partnerships with major agencies and advertisers to drive industry-wide innovation. By setting the corporate agenda, James Rooke directly influences the development of advanced audience targeting tools. Rooke coordinates with the executive team to ensure that all business units remain focused on delivering superior value to clients. Through the pursuit of new market opportunities, the President, Comcast Advertising facilitates long-term growth and technological advancement. Rooke drives the strategic initiatives that define the future of advertising, ensuring that the organization continues to lead the transformation of the media landscape through cutting-edge technology and data-driven insights.
    James Rooke

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    Frequently Asked Questions Regarding Comcast Advertising Top Executives and Leadership Team

    Who leads Comcast Advertising?
    Comcast Advertising is led by John Wimmenauer (Chief Financial Officer), along with executives such as Karen Seminara (Comcast Advertising Senior VP & Chief Financial Officer) and Gina Mingioni (Chief Operating Officer, Comcast Advertising).
    Who is part of Comcast Advertising’s executive team?
    The executive team of Comcast Advertising includes leaders such as John Wimmenauer (Chief Financial Officer), Karen Seminara (Comcast Advertising Senior VP & Chief Financial Officer), Gina Mingioni (Chief Operating Officer, Comcast Advertising) and other senior executives.
    How many executives does Comcast Advertising have?
    Comcast Advertising has 4 executives leading key business areas.
    What roles are included in Comcast Advertising’s leadership team?
    The leadership team of Comcast Advertising includes roles such as Chief Financial Officer, Comcast Advertising Senior VP & Chief Financial Officer, Chief Operating Officer, Comcast Advertising, President, Comcast Advertising.