Comcast Advertising Executive and Leadership Team

July, 2026

Leadership Overview

Comcast Advertising has 5 executives leading key functions including finance, operations, sales, and strategy.

Driven by advanced advertising solutions, Comcast Advertising provides sophisticated technology and campaign management for television and digital video, impacting media companies, agencies, and advertisers nationwide.

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
  • Local Sales Account Executive & President, Two Time 's Club Winner (2023 & 2024) - Leslie Libby
  • President, Comcast Advertising - James Rooke
  • John Wimmenauer - Chief Financial Officer

    John Wimmenauer, the Chief Financial Officer at Comcast Advertising, directs all financial operations and strategic fiscal planning. Overseeing budgeting, forecasting, and financial reporting, Wimmenauer ensures robust financial health and supports the company's growth objectives. This leadership role involves managing investment strategies and optimizing resource allocation across the advertising technology and sales divisions. By analyzing market trends and financial performance, John Wimmenauer drives profitability and sustains the company's competitive edge in the television and digital video advertising sectors. The Chief Financial Officer's oversight extends to ensuring compliance with all financial regulations and reporting requirements, thereby safeguarding the company's fiscal integrity and stakeholder confidence.
    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 key financial functions and contributes to strategic fiscal direction. Seminara's responsibilities include overseeing financial planning and analysis, ensuring fiscal discipline, and supporting the company's objectives in advanced advertising solutions. This position involves close collaboration with executive leadership to drive financial performance and manage resources effectively across the organization. By providing critical financial insights, Karen Seminara aids in the strategic deployment of capital for technology development and market expansion. The Senior VP & Chief Financial Officer's expertise is vital for maintaining financial stability and enabling Comcast Advertising's continued innovation in television and digital video advertising.

    Gina Mingioni - Chief Operating Officer, Comcast Advertising

    Gina Mingioni, the Chief Operating Officer, Comcast Advertising at Comcast Advertising, executes operational strategies to enhance efficiency and service delivery. Overseeing daily business activities and streamlining workflows, Mingioni ensures the seamless integration of advanced advertising solutions for media companies, agencies, and advertisers. This critical role involves managing cross-functional teams and optimizing processes for programmatic ad technology, audience targeting, and cross-platform campaign management. By driving operational excellence, Gina Mingioni directly supports the company's mission to provide cutting-edge advertising technology. The Chief Operating Officer's focus remains on scaling operations and maintaining high standards of performance across all business units, ensuring Comcast Advertising remains a leader in the evolving media landscape.

    Leslie Libby - Local Sales Account Executive & President, Two Time 's Club Winner (2023 & 2024)

    Leslie Libby, the Local Sales Account Executive & President, Two Time 's Club Winner (2023 & 2024) at Comcast Advertising, drives revenue growth through dedicated client engagement and sales leadership. Libby's role focuses on cultivating strong relationships with local advertisers and agencies, ensuring their needs are met with Comcast Advertising's advanced solutions. This position involves developing and executing tailored sales strategies that leverage programmatic ad technology and audience targeting capabilities. By consistently exceeding sales targets, as evidenced by the 's Club wins, Leslie Libby demonstrates exceptional performance in the competitive advertising market. The Local Sales Account Executive's commitment to client success directly contributes to the company's market penetration and revenue generation in key local markets.

    James Rooke - President, Comcast Advertising

    James Rooke, the President, Comcast Advertising at Comcast Advertising, directs the overall strategic vision and operational execution of the company's advertising technology and sales divisions. Rooke's leadership guides the development and deployment of advanced solutions for television and digital video, encompassing programmatic ad technology, audience targeting, and cross-platform campaign management. This executive role involves fostering innovation, driving market growth, and ensuring Comcast Advertising remains at the forefront of the industry. By collaborating with key stakeholders and leading diverse teams, James Rooke champions the company's mission to deliver impactful advertising experiences for media companies, agencies, and advertisers. The President's strategic oversight is crucial for navigating the evolving media landscape and maximizing the company's influence and revenue.
    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 5 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, Local Sales Account Executive & President, Two Time 's Club Winner (2023 & 2024), President, Comcast Advertising.