Cornerstone Building Brands Executive and Leadership Team

July, 2026

Leadership Overview

Cornerstone Building Brands has 10 executives leading key functions including strategy, operations, technology, finance, and human resources.

Driven by innovation, Cornerstone Building Brands manufactures exterior building products for residential and commercial customers, serving new construction and repair markets across North America with a commitment to quality and customer satisfaction.

Leadership Roles at Cornerstone Building Brands

  • Chief Executive Officer - Gunner Smith
  • Chairman, Interim President & Chief Executive Officer - John Krenicki
  • Senior VP, Business Finance & Chief Financial Officer, BU - Jeffery Hayter
  • Senior VP, Finance & Chief Financial Officer, Shelter Solutions - Stephen DeAngelis
  • Executive Vice President & Chief Operating Officer - Robert Burns
  • Chief Technology Officer - Michael Gemza
  • Chief Information Officer - Ram Manukonda
  • Chief Technology Officer & Technology Portfolio Manager - Manuel Ali
  • Executive Vice President & Chief Human Resources Officer - Michael Pulcanio
  • Interim Chief Human Resources Officer - Jennifer Horrocks
  • Gunner Smith - Chief Executive Officer

    Gunner Smith, the Chief Executive Officer at Cornerstone Building Brands, directs the overarching corporate strategy and operational execution. Smith guides the company's expansion across North America, focusing on enhancing market presence in both residential and commercial sectors. This leadership role involves aligning all departments toward achieving key performance indicators and driving sustainable growth. Overseeing the integration of new technologies and market opportunities, Gunner Smith ensures the company maintains its competitive edge in the exterior building products industry. The CEO's mandate includes fostering a culture of innovation and operational excellence, directly impacting the company's financial health and long-term viability. Smith's strategic vision shapes the company's response to market dynamics and customer needs.
    Gunner Smith

    John Krenicki - Chairman, Interim President & Chief Executive Officer

    John Krenicki, the Chairman, Interim President & Chief Executive Officer at Cornerstone Building Brands, provides critical leadership during a transitional period. Krenicki assumes responsibility for guiding the company's strategic direction and ensuring continuity in operations and executive functions. This dual role involves overseeing board activities while also managing day-to-day executive responsibilities. Krenicki's focus includes maintaining stakeholder confidence and driving forward key initiatives that support the company's mission. The Chairman's oversight ensures robust governance, while the interim presidential duties address immediate operational needs. John Krenicki's leadership is pivotal in navigating the company through this phase, ensuring stability and continued progress in the manufacturing of exterior building products.

    Jeffery Hayter - Senior VP, Business Finance & Chief Financial Officer, BU

    Jeffery Hayter, the Senior VP, Business Finance & Chief Financial Officer, BU at Cornerstone Building Brands, directs financial operations and strategic planning for specific business units. Hayter oversees budgeting, forecasting, and financial analysis to ensure profitability and fiscal responsibility across designated segments of the exterior building products business. This role involves close collaboration with operational leaders to drive financial performance and identify opportunities for cost optimization and revenue enhancement. Jeffery Hayter's expertise in business finance is crucial for supporting strategic decision-making and ensuring the financial health of the company's various divisions. The CFO's guidance supports sustainable growth and operational efficiency throughout North America.

    Stephen DeAngelis - Senior VP, Finance & Chief Financial Officer, Shelter Solutions

    Stephen DeAngelis, the Senior VP, Finance & Chief Financial Officer, Shelter Solutions at Cornerstone Building Brands, leads financial strategy and oversight for the Shelter Solutions division. DeAngelis manages financial planning, analysis, and reporting, ensuring the fiscal health and profitability of this key business segment. This position involves driving financial discipline and identifying strategic opportunities for growth within the exterior building products market. Stephen DeAngelis's financial acumen is instrumental in guiding investment decisions and optimizing resource allocation for Shelter Solutions. The CFO's leadership ensures that this division operates efficiently and contributes significantly to the company's overall success across North America.

    Robert Burns - Executive Vice President & Chief Operating Officer

    Robert Burns, the Executive Vice President & Chief Operating Officer at Cornerstone Building Brands, directs the company's extensive operational activities and manufacturing processes. Burns oversees the efficiency and effectiveness of production facilities across North America, ensuring high standards of quality and output for exterior building products. This leadership role involves optimizing supply chain management, implementing lean manufacturing principles, and driving operational excellence throughout the organization. Robert Burns's strategic oversight is critical for meeting market demand and enhancing customer satisfaction. The COO's focus on operational efficiency directly supports the company's profitability and competitive positioning in the industry.

    Michael Gemza - Chief Technology Officer

    Michael Gemza, the Chief Technology Officer at Cornerstone Building Brands, architects the company's technological vision and innovation roadmap. Gemza directs the development and implementation of advanced technologies across all manufacturing and operational processes, enhancing product quality and production efficiency. This role involves overseeing research and development initiatives, ensuring the company stays at the forefront of material science and manufacturing techniques for exterior building products. Michael Gemza's responsibilities extend to managing the company's IT infrastructure and digital transformation efforts, supporting both internal operations and customer-facing platforms. The CTO's strategic guidance is crucial for optimizing supply chains and developing next-generation building solutions that meet evolving market demands.
    Michael Gemza

    Ram Manukonda - Chief Information Officer

    Ram Manukonda, the Chief Information Officer at Cornerstone Building Brands, spearheads the company's information technology strategy and infrastructure. Manukonda oversees the management of all IT systems, ensuring robust cybersecurity measures and data integrity across the organization. This leadership position involves driving digital transformation initiatives that enhance operational efficiency and support business growth in the exterior building products sector. Ram Manukonda's focus includes implementing scalable IT solutions that streamline processes, improve communication, and provide actionable insights from data analytics. The CIO's role is critical in enabling seamless integration of technology across manufacturing, sales, and customer service functions, thereby supporting the company's North American operations.

    Manuel Ali - Chief Technology Officer & Technology Portfolio Manager

    Manuel Ali, the Chief Technology Officer & Technology Portfolio Manager at Cornerstone Building Brands, drives technological innovation and manages the company's technology investments. Ali oversees the strategic allocation of resources towards research, development, and the implementation of cutting-edge technologies that enhance product offerings and manufacturing capabilities. This dual role ensures that technology initiatives align with business objectives, focusing on optimizing operational performance and expanding market reach for exterior building products. Manuel Ali's portfolio management responsibilities include evaluating new technological opportunities and ensuring a strong return on investment. The CTO's vision guides the company's technological evolution, supporting its commitment to quality and customer satisfaction across North America.

    Michael Pulcanio - Executive Vice President & Chief Human Resources Officer

    Michael Pulcanio, the Executive Vice President & Chief Human Resources Officer at Cornerstone Building Brands, leads all human capital strategies and organizational development initiatives. Pulcanio oversees talent acquisition, employee engagement, and workforce planning to support the company's growth across North America. This critical role involves fostering a positive and productive work environment, ensuring compliance with labor laws, and developing programs that enhance employee well-being and professional growth. Michael Pulcanio's leadership ensures that the company has the skilled workforce necessary to excel in the manufacturing of exterior building products. The CHRO's strategic direction is vital for building a cohesive and high-performing team aligned with Cornerstone Building Brands' mission.
    Michael Pulcanio

    Jennifer Horrocks - Interim Chief Human Resources Officer

    Jennifer Horrocks, the Interim Chief Human Resources Officer at Cornerstone Building Brands, provides essential leadership for human resources functions during a transitional period. Horrocks oversees critical HR operations, including talent management, employee relations, and organizational development, ensuring continuity and support for the workforce. This role is vital for maintaining employee morale and productivity across the company's North American operations. Jennifer Horrocks' focus includes implementing HR best practices and supporting strategic initiatives that align with the company's objectives in the exterior building products market. The interim CHRO's dedication ensures that human capital strategies remain robust and supportive of business goals.

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    Frequently Asked Questions Regarding Cornerstone Building Brands Top Executives and Leadership Team

    Who leads Cornerstone Building Brands?
    Cornerstone Building Brands is led by Gunner Smith (Chief Executive Officer), along with executives such as John Krenicki (Chairman, Interim President & Chief Executive Officer) and Jeffery Hayter (Senior VP, Business Finance & Chief Financial Officer, BU).
    Who is part of Cornerstone Building Brands’s executive team?
    The executive team of Cornerstone Building Brands includes leaders such as Gunner Smith (Chief Executive Officer), John Krenicki (Chairman, Interim President & Chief Executive Officer), Jeffery Hayter (Senior VP, Business Finance & Chief Financial Officer, BU) and other senior executives.
    How many executives does Cornerstone Building Brands have?
    Cornerstone Building Brands has 10 executives leading key business areas.
    What roles are included in Cornerstone Building Brands’s leadership team?
    The leadership team of Cornerstone Building Brands includes roles such as Chief Executive Officer, Chairman, Interim President & Chief Executive Officer, Senior VP, Business Finance & Chief Financial Officer, BU, Senior VP, Finance & Chief Financial Officer, Shelter Solutions, Executive Vice President & Chief Operating Officer.