Johns Manville Announces New President for Insulation Systems Business
17.6.2020 20:31:00 EEST | Business Wire | Press release
Johns Manville (JM), a global building and specialty products manufacturer and a Berkshire Hathaway company, announced today that Greg Clarke will become President of the company’s Insulation Systems business, effective Sept. 1, 2020.
This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20200617005677/en/
Greg Clarke (Photo: Business Wire)
Clarke will succeed Bob Wamboldt, who will be JM’s next President and CEO. Mary Rhinehart, the company’s current Chairman, President and CEO, will retain the role of Chairman.
“Greg is a trusted business partner and a critical member of JM’s leadership team,” Rhinehart said. “He brings a broad base of JM knowledge and experience to this new role and we are confident our Insulation Systems business will continue to succeed under his leadership.”
Clarke was named JM’s Senior Vice President and Chief Financial Officer when he rejoined the company in 2013. In this role, he led JM’s finance organization, global procurement and logistics operations, and corporate development activities. He previously worked for Johns Manville from 1997 to 2002 and was Vice President and General Manager of the company’s Building Insulation and Commercial & Industrial Insulation divisions.
“Greg and I have worked well together over the last seven years, and I look forward to continuing this relationship as he transitions into his new role,” Wamboldt said.
Before returning to Johns Manville, Clarke was Chief Financial Officer and a Director at AeroGrow International Inc., an early-stage consumer products company, and President and CEO at Ankmar, LLC, a building products company. Earlier in his career, he held finance leadership and strategic planning roles at PepsiCo Inc. and The Coleman Company Inc.
“I’m excited about the opportunity to get back to our Insulation Systems business,” Clarke said. “We have an outstanding team and a strong market presence with the most complete line of insulation solutions for commercial, residential, OEM and industrial applications. I know there is a compelling future ahead for the business and I look forward to helping to achieve that vision.”
Clarke earned a bachelor’s degree in economics from Amherst College and an MBA from Columbia University Graduate School of Business. He serves on the AeroGrow Board of Directors and is a member of the Board of Alumni and Friends of the Leeds School of Business at the University of Colorado. He and his family live in Denver.
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/20200617005677/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
Union of Kansai Governments: Kansai Deep Tech Ecosystem Gains Global Visibility31.3.2026 03:00:00 EEST | Press release
The Union of Kansai Governments has refreshed the Kansai Startup Ecosystem portal, strengthening the region’s global communication platform for startups and deep tech. At the same time, the “DeepTech Frontier Kansai” website has also been updated, further enhancing international visibility for Kansai’s rapidly growing deep tech ecosystem. Kansai’s startup ecosystem has demonstrated steady growth in recent years. The ecosystem’s total value expanded from USD 2.68 billion in 2023 to USD 3.23 billion in 2025. In addition, Kansai rose 20 places in the Global Startup Ecosystem Ranking (GSER) published by Startup Genome, climbing from 99th in 2023 to 79th in 2025, and early-stage funding reached USD 124 million. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20260330459051/en/ Kansai’s Strength in Deep Tech Kansai represents a rare ecosystem where fundamental research and industrial application coexist in close geographic proximity,
Klarna Payments Now Available at B-Parts, Europe's Largest Automotive Parts Website30.3.2026 22:51:00 EEST | Press release
Klarna, the global digital bank and flexible payments provider, is joining forces with B-Parts, a leading online retailer of used and original car parts, to offer consumers greater flexibility, convenience, choice and control at the point of payments, with no interest or hidden fees. Through Klarna’s interest-free installment payments, B-Parts customers will benefit from greater flexibility and control over their finances. Klarna also ensures a secure shopping experience thanks to its buyer protection scheme, as well as a range of features such as cashback and deals. "We continue to grow locally, with an increasing number of brands across different sectors recognising the enormous advantage of offering their customers more payment options, those that make for a more convenient and seamless checkout experience," explains Inês Fiúza Marques, Country Manager of Klarna in Portugal. "It's fantastic to have B-Parts on board, and it shows just how broadly our solutions are being embraced." Ma
Office of His Highness Sheikh Hamdan Bin Ahmed Al Maktoum Holdings & Gatbits IT Infrastructure Announce Launch of GTBS Digital Ecosystem; Mainnet Set for April 202630.3.2026 21:30:00 EEST | Press release
The Office of His Highness Sheikh Hamdan Bin Ahmed Al Maktoum Holdings, in collaboration with Gatbits IT Infrastructure, has officially announced the launch of the GTBS Digital Ecosystem, marking a significant step forward in the global Web3 space. The announcement follows the successful launch of the native GTBS Coin on December 25, with the ecosystem’s mainnet scheduled to go live in April 2026. GTBS represents a full-stack Web3 ecosystem integrating blockchain, artificial intelligence, decentralized finance (DeFi), entertainment, gaming, media, and cloud infrastructure into a unified platform. Built on the philosophy of “All Commitment On Time,” the ecosystem focuses on delivering reliability, scalability, and real-world utility. Designed as a comprehensive digital infrastructure, GTBS goes beyond standalone crypto platforms by offering an integrated environment for users, developers, creators, and enterprises. Its proprietary Layer-1 blockchain powers seamless interaction across se
Yubico Appoints Poupak Modirassari Enbom as Chief Marketing Officer to Accelerate Global Momentum and Drive Market Leadership30.3.2026 16:00:00 EEST | Press release
Yubico (NASDAQ STOCKHOLM: YUBICO), the creator of the most secure passkeys and a leading provider of hardware authentication security keys, today announced the appointment of Poupak Enbom as Chief Marketing Officer (CMO). This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20260330278027/en/ Enbom joins Yubico at a pivotal moment as organizations worldwide accelerate the shift to phishing-resistant authentication and modern identity security in the age of AI. “We’re excited to welcome Poupak to Yubico,” said Jerrod Chong, acting chief executive officer, Yubico. “As the threat landscape evolves with AI-driven attacks and increasing automation, organizations are rethinking how they secure digital identities of both humans and AI agents at scale. She brings a unique combination of technical depth, global leadership, and customer-first mindset that will help us continue to expand our impact and support our customers and partners around
HistoSonics Treats First Patients Evaluating the Edison® Histotripsy System for the Treatment of Benign Prostatic Hyperplasia (BPH)30.3.2026 15:00:00 EEST | Press release
HistoSonics, the developer of the Edison® Histotripsy System and novel histotripsy therapy platform, today announced the successful treatments of the first patients in WOLVERINE, a prospective feasibility trial evaluating the Edison® Histotripsy System for the treatment of benign prostatic hyperplasia (BPH) at Prince of Wales Hospital in Hong Kong, a teaching hospital for The Chinese University of Hong Kong. The Edison System is a novel, non-invasive, image guided platform that uses the mechanical properties of focused ultrasound, called histotripsy, to destroy unwanted tissue without the need for invasive procedures, and with potentially fewer side effects than traditional, invasive therapies. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20260330349844/en/ HistoSonics Non-Invasive Edison Histotripsy System. Image credit: HistoSonics WOLVERINE is a prospective, multi-center, single-arm feasibility trial designed to evaluate
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