Johns Manville Executive and Leadership Team

September, 2026

Leadership Overview

Johns Manville has 6 executives leading key functions including strategy, financial oversight, information technology, insulation systems, roofing systems, and general operations.

Focused on manufacturing excellence, Johns Manville delivers high-performance insulation, roofing materials, and engineered products to global markets while maintaining a commitment to sustainable building solutions.

Leadership Roles at Johns Manville

  • President & Chief Executive Officer - Jonathan (John) Vasuta
  • Chief Financial Officer & Senior VP - Matthew Carabetta
  • President, Insulation Systems - Greg Clarke
  • President, Roofing Systems - Joseph Smith
  • President - Janet Myhre
  • Vice President & Chief Information Officer - John Shellenberger
  • Jonathan (John) Vasuta - President & Chief Executive Officer

    Jonathan (John) Vasuta, the President & Chief Executive Officer at Johns Manville, directs the overarching corporate strategy for the manufacturing of insulation, roofing materials, and engineered products. Overseeing global operations, the President & Chief Executive Officer ensures alignment between production capabilities and market demand across North American and international territories. This leadership role involves constant collaboration with the Board to drive long-term growth and operational efficiency. By optimizing the manufacturing footprint, Jonathan (John) Vasuta directly impacts the competitive positioning of the organization within the building materials sector. Ultimately, Vasuta secures the financial health and innovation pipeline of the company, ensuring that all business units meet rigorous quality standards while expanding market reach through strategic investments in advanced material science and sustainable infrastructure development.
    Jonathan (John) Vasuta

    Matthew Carabetta - Chief Financial Officer & Senior VP

    Matthew Carabetta, the Chief Financial Officer & Senior VP at Johns Manville, manages the fiscal health and capital allocation strategies for the organization. Overseeing financial planning, reporting, and risk management, the Chief Financial Officer & Senior VP ensures that capital investments support the production of insulation and roofing materials. This leadership role involves close coordination with executive peers to maintain robust balance sheets and drive profitability across diverse manufacturing segments. By implementing rigorous cost-control measures, Matthew Carabetta directly impacts the operational efficiency of the company. Ultimately, Carabetta provides the financial transparency and strategic foresight necessary to navigate complex market cycles, ensuring that the organization maintains a strong liquidity position while funding critical research and development initiatives that sustain the long-term growth of the business in the competitive building products industry.
    Matthew Carabetta

    Greg Clarke - President, Insulation Systems

    Greg Clarke, the President, Insulation Systems at Johns Manville, directs the development and distribution of high-performance insulation products for residential and commercial applications. Overseeing the insulation business unit, the President, Insulation Systems ensures that manufacturing processes meet the evolving energy efficiency standards of the building industry. This leadership role involves coordinating with sales and engineering teams to expand market share across North America. By prioritizing product innovation and manufacturing excellence, Greg Clarke directly impacts the revenue growth of the insulation division. Ultimately, Clarke drives the strategic direction of the business unit, ensuring that the company remains a leader in thermal and acoustic insulation solutions while maintaining a focus on sustainable building practices that provide long-term value to customers and stakeholders within the competitive construction materials market.
    Greg Clarke

    Joseph Smith - President, Roofing Systems

    Joseph Smith, the President, Roofing Systems at Johns Manville, manages the production and market strategy for advanced roofing materials and systems. Overseeing the roofing business unit, the President, Roofing Systems ensures that product offerings address the durability and performance requirements of modern commercial and industrial structures. This leadership role involves aligning manufacturing output with regional demand patterns to optimize supply chain performance. By focusing on high-quality roofing solutions, Joseph Smith directly impacts the market reputation and profitability of the roofing division. Ultimately, Smith drives the expansion of the product portfolio, ensuring that the company maintains a competitive edge through continuous improvement in material science and installation efficiency, thereby supporting the broader mission of providing reliable and sustainable building solutions to a diverse global client base.

    Janet Myhre - President

    Janet Myhre, the President at Johns Manville, oversees the strategic execution of specialized business functions and operational initiatives across the organization. Managing cross-functional teams, the President ensures that internal processes align with the broader corporate mission of delivering high-quality engineered products. This leadership role involves facilitating collaboration between departments to improve operational workflows and enhance overall productivity. By driving organizational excellence, Janet Myhre directly impacts the efficiency and effectiveness of the company. Ultimately, Myhre provides the leadership necessary to navigate complex operational challenges, ensuring that the organization remains agile and responsive to market shifts while maintaining a commitment to the high standards of manufacturing and service that define the company in the building materials industry.

    John Shellenberger - Vice President & Chief Information Officer

    John Shellenberger, the Vice President & Chief Information Officer at Johns Manville, architects the digital infrastructure and cybersecurity frameworks supporting the manufacturing of insulation and roofing products. Overseeing enterprise-wide technology systems, the Vice President & Chief Information Officer ensures that data analytics and digital tools enhance production efficiency and supply chain visibility. This leadership role involves integrating advanced software solutions to streamline operations across regional manufacturing facilities. By modernizing the technological landscape, John Shellenberger directly impacts the agility and responsiveness of the company in a fast-paced market. Ultimately, Shellenberger secures the digital assets of the organization, fostering a secure environment that enables seamless collaboration between engineering teams and corporate leadership, thereby driving innovation in the development of high-performance building materials and engineered products for a global customer base.
    John Shellenberger

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    Frequently Asked Questions Regarding Johns Manville Top Executives and Leadership Team

    Who leads Johns Manville?
    Johns Manville is led by Jonathan (John) Vasuta (President & Chief Executive Officer), along with executives such as Matthew Carabetta (Chief Financial Officer & Senior VP) and Greg Clarke (President, Insulation Systems).
    Who is part of Johns Manville’s executive team?
    The executive team of Johns Manville includes leaders such as Jonathan (John) Vasuta (President & Chief Executive Officer), Matthew Carabetta (Chief Financial Officer & Senior VP), Greg Clarke (President, Insulation Systems) and other senior executives.
    How many executives does Johns Manville have?
    Johns Manville has 6 executives leading key business areas.
    What roles are included in Johns Manville’s leadership team?
    The leadership team of Johns Manville includes roles such as President & Chief Executive Officer, Chief Financial Officer & Senior VP, President, Insulation Systems, President, Roofing Systems, President.