Johns Manville Announces New CEO, Chairman Transition
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/
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.
View source version on businesswire.com: https://www.businesswire.com/news/home/20200617005674/en/
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
Mainstay Medical Announces Coverage Recommendation from the International Society for the Advancement of Spine Surgery (ISASS) for ReActiv811.12.2025 15:30:00 EET | Press release
Mainstay Medical Holdings plc today announced that the International Society for the Advancement of Spine Surgery (ISASS) has issued recommendations and coverage criteria for the use of restorative neurostimulation for the treatment of chronic mechanical low back pain associated with multifidus muscle dysfunction. ReActiv8® restorative neurostimulation is the only therapy approved in the United States, Europe and Australia for this indication. The Statement, which affirms ISASS’ support for coverage by payers of implantable restorative neurostimulation in appropriately selected patients, was published in the December issue of the International Journal of Spine Surgery and can be accessed here: https://www.ijssurgery.com/content/early/2025/12/10/8833. The Statement reflects the growing body of clinical evidence supporting the use of ReActiv8, as well as recent developments in diagnostic coding and reimbursement pathways since ISASS’ 2023 Statement on Restorative Neurostimulation for Chr
SLB Enters Collaboration Agreement to Accelerate New Digital Solutions11.12.2025 15:28:00 EET | Press release
Global energy technology company SLB (NYSE: SLB) signed a strategic collaboration agreement with Shell to develop digital and AI solutions that drive measurable performance and efficiency gains across upstream operations for the company and the wider industry. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20251211832051/en/ The collaboration has the ambition to develop agentic AI-powered solutions that will accelerate and amplify the capabilities of technical experts and decision makers. The aim is to develop and deploy an open data and AI infrastructure that unifies data and workflows across subsurface, well construction and production in a secure digital environment, using SLB’s Lumi™ data and AI platform. The collaboration has the ambition to develop agentic AI-powered solutions that will accelerate and amplify the capabilities of technical experts and decision makers. The aim is to develop and deploy an open data and AI i
Tahoe Therapeutics Selects Parse Biosciences’ GigaLab to Generate 300 Million Single Cell Profiles for Large-Scale Perturbation Atlas11.12.2025 15:00:00 EET | Press release
Parse Biosciences, a leading provider of accessible and scalable single cell sequencing solutions, today announced that Tahoe Therapeutics has selected Parse’s GigaLab to generate data for its upcoming 300M cell project. Tahoe will use its proprietary Mosaic technology to generate samples consisting of 300M cells from large arrays of disease models, genetically or chemically perturbed. Under this agreement, Parse will apply its Evercode™ chemistry and high-throughput automation to these samples to deliver the largest perturbation-focused single cell dataset ever produced. Parse’s GigaLab, designed specifically for million- to hundred-million-cell projects, has rapidly become an industry benchmark for large-scale, reproducible single cell data generation. The facility integrates high-capacity liquid handling, standardized workflows, and end-to-end QC to enable dataset sizes previously unattainable for most research organizations. The Tahoe project represents one of the largest sequencin
Xsight Labs X2 Switch to Enable Next-Generation Starlink Satellites and Deliver Gigabit Connectivity11.12.2025 15:00:00 EET | Press release
Xsight Labs, an innovator in high-performance connectivity silicon, today announced that Starlink, the world’s most advanced satellite constellation in low-Earth orbit, delivering broadband, will leverage the Xsight X2 Programmable Ethernet switch to serve as the high-speed networking core for its next-generation Starlink V3 satellites. Each V3 Starlink satellite is designed to deliver more than 1 terabit per second (Tbps) of fronthaul throughput, more than 10× the capacity delivered by Starlink V2 Mini satellites, and about 160 gigabits per second (Gbps) of uplink capacity. Starlink’s global broadband service depends on processing and routing large volumes of real-time data, including inter-satellite optical link traffic, orbital mesh routing decisions, adaptive beam steering, and the high-throughput downlink required to serve its customers. The X2 delivers 12.8 Tbps of switching capacity using state-of-the-art 100G SerDes and TSMC’s N5 process, providing a power-efficient, ultra-low-
Payments Leaders Unprepared for 2026 Disruption, Warns ACI Worldwide11.12.2025 14:36:00 EET | Press release
Most global payments leaders lack a clear roadmap to navigate the seismic changes coming in 2026 , according to the latest Top Ten Payments Predictions from ACI Worldwide (NASDAQ: ACIW), an original innovator in global payments technology. With AI-driven intelligence, next-gen authentication, new regulatory frameworks, and soaring demand for instant, embedded, and secure payments, the industry is entering an era of structural disruption. However, ACI’s recent report Payments in Transition: Leadership in an era of transformation reveals that only 36% of payments executives have a clear long-term modernization roadmap, leaving many without a strategic vision for transformation. “In 2026, payments disruption won’t be incremental—it will be structural,” said Philip Bruno, Chief Strategy and Growth Officer at ACI Worldwide. “Real-time is now the baseline, digital assets are entering regulated ecosystems, and AI is transforming every layer of the value chain. Our research is a clear warning:
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
