Business Wire

Johns Manville Announces New CEO, Chairman Transition

Share

Johns Manville (JM), a global building and specialty products manufacturer and a Berkshire Hathaway company, announced today that Bob Wamboldt will become President and CEO on Sept. 1, 2020. Mary Rhinehart, the company’s current Chairman, President and CEO, will retain the role of Chairman.

This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20200617005674/en/

To view this piece of content from mms.businesswire.com, please give your consent at the top of this page.

Mary Rhinehart (Photo: Business Wire)

Wamboldt joined Johns Manville in 2003 and became President of JM’s Insulation Systems business in February 2017. He earlier led the Engineered Products North America and Roofing Systems businesses at JM. Wamboldt is also Chairman of the North American Insulation Manufacturers Association and previously served as president of the Asphalt Roofing Manufacturers Association.

“I have been privileged to lead each of our businesses and learn first-hand the strength of the Johns Manville customer relationships, products, technologies and people,” Wamboldt said. “I look forward to working with the JM team and our customers to make the company even stronger in the global markets we serve. I also want to thank Mary for her leadership and guidance over the years and know I will benefit from her continued support as Chairman.”

Before joining Johns Manville, Wamboldt worked 16 years at PPG Industries Inc., where he held a variety of positions in the company’s Fiber Glass and Coatings divisions. He earned a bachelor’s degree in chemistry from Lehigh University. He and his wife live in Denver.

Rhinehart became Johns Manville’s President and CEO in 2012 and assumed the additional role of Chairman in 2014. Before becoming President and CEO, she was the company’s Chief Financial Officer for eight years. During her more than 40 years with Johns Manville, she also held leadership roles in treasury, supply chain, M&A and human resources, and she managed several of the company’s business units.

“I am immensely proud of JM’s employees and all we have accomplished together,” Rhinehart said. “Johns Manville is an important part of my life, and its continued success is my top priority as we transition to new leadership. I am pleased to hand the company over to such an accomplished JM executive as Bob and am confident he and our 8,000 employees around the world will continue to build on JM’s 162-year track record of success.”

Johns Manville became a Berkshire Hathaway company in February 2001.

“Bob’s business acumen, broad base of experience, and extensive industry knowledge make him the natural successor to Mary as CEO,” said Greg Abel, Berkshire Hathaway’s Vice Chairman. “I also want to extend my gratitude to Mary for her dedication and commitment to JM over her entire career. Under her leadership as CEO, JM delivered exceptional performance, successfully expanded its market presence, and made sound, strategic investments to position the company for success well into the future.”

Warren Buffett, Chairman and CEO of Berkshire Hathaway, added: “Mary was everything we had hoped to find in a CEO.”

About Johns Manville

Johns Manville, a Berkshire Hathaway company (NYSE: BRK.A, BRK.B), is a leading manufacturer and marketer of premium-quality building and specialty products. In business since 1858, the Denver-based company has annual sales over $3 billion and holds leadership positions in all of the key markets that it serves. Johns Manville employs 8,000 people and operates 46 manufacturing facilities in North America, Europe and China. Additional information can be found at www.jm.com.

To view this piece of content from cts.businesswire.com, please give your consent at the top of this page.

Contact information

Eric Brown, +1-303-809-2853
eric.brown@jm.com

About Business Wire

For more than 50 years, Business Wire has been the global leader in press release distribution and regulatory disclosure.

Subscribe to releases from Business Wire

Subscribe to all the latest releases from Business Wire by registering your e-mail address below. You can unsubscribe at any time.

Latest releases from Business Wire

Hanshow and the University of Cambridge Launch Joint Research on Augmented Intelligent Hybrid Wireless Technology25.12.2025 13:34:00 EET | Press release

Hanshow, a global leader in electronic shelf labels (ESL) and digital store solutions, has entered into a multi-year research collaboration with the University of Cambridge, one of the world’s most prestigious academic institutions. The partnership will focus on joint research and innovation in next-generation intelligent hybrid wireless technologies, marking an important milestone in Hanshow’s continued investment in core technologies and long-term innovation. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20251225988816/en/ This collaboration leverages the University of Cambridge’s deep expertise in fundamental wireless technology research, alongside Hanshow’s extensive industry experience, to further strengthen multi-protocol integration capabilities and expand scalable applications across diverse retail scenarios. Guided by shared principles of innovation, collaboration, openness, and knowledge sharing, the two parties aim

Social Development Bank Highlights Strategic Partnerships and Global Initiatives at DeveGo 202524.12.2025 18:27:00 EET | Press release

The Social Development Bank (SDB) hosted the second edition of the Entrepreneurship and Modern Business Practices Forum, “DeveGo 2025”, from 21 to 23 December in Riyadh. Held under the patronage of His Excellency Eng. Ahmed bin Sulaiman Al Rajhi, Minister of Human Resources and Social Development and Chairman of SDB’s Board of Directors, the forum brings together government leaders, global experts, investors, and entrepreneurs to shape the future of entrepreneurship and modern business practices in the Kingdom of Saudi Arabia. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20251224036724/en/ From right to left: Ahmed Al Rajhi, Saudi's Minister of Human Resources and Social Development, H.E. Rebeca Grynspan, Secretary-General of UNCTAD, and Sultan Al Hamidi, CEO of Social Development (Photo: AETOSWire) Opening the forum, Minister Al Rajhi delivered a keynote speech on the growing vibrancy of Saudi Arabia’s entrepreneurial movem

Making Science Unveils ‘AWAKE’: The AI Venture Studio Industrialising Startup Creation and AI-First Innovative Solutions23.12.2025 21:51:00 EET | Press release

Making Science, the global digital acceleration consultancy, today announced the launch of AWAKE Venture Studio. This "AI-first" model represents a new era in systematic innovation, designed to identify, prototype, and scale both internal proprietary solutions and independent AI-native startups with global reach. The launch of AWAKE is motivated by the significant efficiency gains of orders of magnitude that Making Science has already achieved through the internal integration of AI. By applying these methods, the firm has achieved a 2x acceleration in tech feature development reducing time in the deployment of AI Agents. This model has already proven its commercial and innovative power through the acceleration of startups like ad-machina, which has multiplied its value by 10 since joining the Making Science ecosystem. These proven benchmarks serve as the technical foundation for AWAKE’s two interconnected engines, which formalise this efficiency into a repeatable manufacturing process

FDA Clears First Extended Depth of Focus Contact Lens for Presbyopia23.12.2025 19:07:00 EET | Press release

The Cataltheia Group and its U.S. subsidiary, Bruno Vision Care LLC, a leader in eye health innovation, today announced that the U.S. Food and Drug Administration (FDA) has cleared the first and only Daily Disposable Soft (Hydrophilic) Contact Lens for Presbyopia utilizing patented Extended Depth of Focus (EDOF) optical design technology, enabling commercial distribution in the United States. Deseyne® delivers smooth, continuous focus across near, intermediate, and distance vision, providing clear, natural vision without compromise. This performance is enabled by Cataltheia’s patented hyper-refractive central zone, engineered to precisely redirect light in a controlled manner. The result is a clear clinical advantage over the only other available contact lens option for presbyopia, multifocal lenses, which rely on multiple optical zones and often require prolonged visual and cognitive adaptation. “We are proud to offer the first contact lens solution for the world’s aging population th

Aramco Awards SLB Long-Term Contract to Support Kingdom’s Unconventional Gas Production Growth23.12.2025 15:58:00 EET | Press release

Global technology company SLB (NYSE: SLB) has been awarded a five-year contract by Aramco to provide stimulation services for its unconventional gas fields. This award is part of a broader multi-billion contract, supporting one of the largest unconventional gas development programs globally. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20251223074948/en/ The contract encompasses advanced stimulation, well intervention, frac automation, and digital solutions, which are important to unlocking the potential of Saudi Arabia’s unconventional gas resources. The contract encompasses advanced stimulation, well intervention, frac automation, and digital solutions, which are important to unlocking the potential of Saudi Arabia’s unconventional gas resources — a cornerstone of the Kingdom’s strategy to diversify its energy portfolio and support the global energy transition. “This agreement is an important step forward in Aramco’s effor

In our pressroom you can read all our latest releases, find our press contacts, images, documents and other relevant information about us.

Visit our pressroom
World GlobeA line styled icon from Orion Icon Library.HiddenA line styled icon from Orion Icon Library.Eye