Johns Manville Announces New CEO, Chairman Transition
17.6.2020 20:30:00 EEST | Business Wire | Press release
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
Incyte’s Pivotal frontMIND Trial Showed Tafasitamab (Monjuvi ® /Minjuvi ® ) Combination Significantly Prolonged Progression-free Survival, Reducing the Risk of Disease Progression or Death by 25% in Patients with Previously Untreated, High-risk DLBCL30.5.2026 15:00:00 EEST | Press release
Incyte (Nasdaq:INCY) today announced positive results from the pivotal Phase 3 frontMIND trial evaluating the efficacy and safety of tafasitamab (Monjuvi®/Minjuvi®), a humanized Fc-modified cytolytic CD19-targeting monoclonal antibody, and lenalidomide added to R-CHOP (rituximab, cyclophosphamide, doxorubicin, vincristine and prednisone; Tafa-Len-R-CHOP) versus R-CHOP alone as a first-line treatment for adults with previously untreated diffuse large B-cell lymphoma (DLBCL) or high-grade B-cell lymphoma (HGBL). Eligible patients had an International Prognostic Index (IPI) score of 3-5, or, for patients ≤60 years of age, an age-adjusted IPI (aaIPI) of 2-3. The oral presentation of these data is taking place at the 2026 American Society of Clinical Oncology (ASCO) Annual Meeting being held May 29 – June 2, 2026, in Chicago (Abstract #LBA7000. Session: Oral Abstract Session – Hematologic Malignancies – Lymphoma and Chronic Lymphocytic Leukemia. May 30, 4:00 – 7:00 p.m. ET [3:00 – 6:00 p.m.
Fortegra Completes Acquisition by DB Insurance29.5.2026 23:30:00 EEST | Press release
The Fortegra Group, Inc. ("Fortegra"), a global specialty insurance company, today announced the completion of its acquisition by DB Insurance Co., Ltd. ("DB"), one of Korea's leading property and casualty insurers. The transaction, announced on September 26, 2025, received all required regulatory and stockholder approvals. Fortegra will operate independently, maintaining its existing leadership team, distribution relationships, and underwriting discipline. Agents, distribution partners, and customers will continue to experience the service excellence that has defined the Fortegra experience. Richard Kahlbaugh, Chairman and CEO of Fortegra, said: "Every company eventually changes ownership. That is the nature of business. The closing of this acquisition is a starting point. As part of DB Insurance, Fortegra is positioned to expand our business geographically, enhance our capabilities and deepen our market presence in the US, Europe, the United Kingdom and Asia. Together, DB Insurance a
SINOVAC Receives Nasdaq Notification Regarding Late Filing of 2025 Annual Report29.5.2026 23:01:00 EEST | Press release
Sinovac Biotech Ltd. (Nasdaq: SVA) (“SINOVAC” or the “Company”), a leading provider of biopharmaceutical products in China, today announced that it received a notification letter dated May 20, 2026 (the “Notification Letter”), from Nasdaq Listing Qualifications (“Nasdaq”) stating that as of May 8, 2026, the Company had regained compliance with the periodic filing and interim financial requirements in Nasdaq Listing Rules 5250(c)(1) (the “Periodic Filing Rule”) and 5250(c)(2), as required by the Panel’s decision dated January 21, 2026. As previously disclosed on January 22, 2026, under the Panel’s decision, SINOVAC was required to, on or before May 11, 2026, demonstrate compliance with such Nasdaq Listing Rules by completing filings of its annual report for the year ended December 31, 2024, on Form 20-F and an interim balance sheet and income statement as of the end of its second quarter of 2025 on Form 6-K. The Company timely completed such filings as required by the Panel’s decision.
From Network Automation to Agentic NetOps: NetBrain Sets the Standard for Deploying AI in Network Operations29.5.2026 16:00:00 EEST | Press release
NetBrain Technologies, Inc. today announced major new platform features that advance Agentic NetOps from an emerging category to operational reality. NetBrain's clients are already deploying agents that are diagnosing and remediating issues across complex multi-vendor enterprise networks. These new features further extend the platform with new agent tooling, cross-domain context, and open interfaces for the broader agentic enterprise. Early customer outcomes show the magnitude of the shift: A leading health insurer used NetBrain's Deep Diagnosis agent to diagnose and resolve a weeks old VPN connectivity issue in under five minutes. A large manufacturer resolved a critical device issue with a single prompt, isolating the root cause across the network path in under 20 minutes, saving hundreds of hours of engineer time, shrinking MTTR by more than 95%. A global telecommunications firm found NetBrain's context-grounded agents outperformed a stand-alone frontier LLM on a persistent firewall
Adtran resolves long-running patent litigation, reinforcing commitment to defend innovation29.5.2026 15:00:00 EEST | Press release
Adtran today announced it has resolved a patent litigation matter, resulting in a full settlement and dismissal of all claims with prejudice. The case, initiated in 2020 by a non-practicing entity asserting five patents, was transferred to the US District Court for the Northern District of Alabama in 2021 following a successful motion by Adtran. Adtran subsequently filed counterclaims, including bad-faith patent assertion under Alabama statutory law. The settlement includes payment to Adtran to resolve its counterclaims. Terms of the agreement remain confidential. “This outcome reflects a disciplined and consistent approach to protecting our innovation and our customers,” said Justin Ferguson, SVP and general counsel at Adtran. “We take all claims seriously, but we will not hesitate to defend ourselves when assertions lack merit. Situations like this place unnecessary strain on technology providers and divert resources from advancing networks and services. By advancing our counterclaim
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