Lightbridge mourns loss of Executive Chairman Ambassador Thomas Graham Jr
News provided byLightbridge Corporation · 2 min read
RESTON, Va., Sept. 04, 2026 /CourierPR/ -- Lightbridge Corporation, a firm at the forefront of nuclear fuel technology, mourned the loss of its esteemed former Executive Chairman, Ambassador Thomas Graham Jr. (ret.), who passed away at the age of 92. Graham's tenure with the company spanned nearly two decades, leaving an indelible mark on its history and direction.
Ambassador Graham's career was marked by his pivotal role in international arms control and nuclear non-proliferation policy. A graduate of Princeton University and Harvard Law School, he served as a senior U.S. diplomat from 1970 to 1997, participating in major negotiations such as the Strategic Arms Limitation Talks, the START I and START II Treaties, and the Comprehensive Test Ban Treaty. His contributions were further highlighted by his 15-year tenure as general counsel of the U.S. Arms Control and Disarmament Agency and his service as its Acting Director in 1993. Appointed by President Bill Clinton, Graham was Special Representative for Arms Control, Non-Proliferation, and Disarmament from 1994 to 1997, playing a crucial role in securing the permanent extension of the Nuclear Non-Proliferation Treaty in 1995.
In 2009, Graham joined Lightbridge as Executive Chairman, a position he held until 2024. His vision for the company centered on the belief that advanced nuclear fuel technology could enhance the economic and safety aspects of nuclear power while simultaneously strengthening proliferation resistance. This perspective was reflected in his work beyond the boardroom. As an appointee to the United Arab Emirates' International Advisory Board on nuclear energy from 2009 to 2016, Graham continued to advocate for the non-proliferation and expansion of civil nuclear energy. His contributions were also seen in the co-authorship of the book "Seeing the Light: The Case for Nuclear Power in the 21st Century" and his role as Co-Chairman of the Atlantic Council's Nuclear Energy and National Security Coalition.
Seth Grae, Chairman and CEO of Lightbridge Corporation, expressed his deep admiration for Graham's legacy. "Tom’s name on our board did something no business plan could: it signaled to governments, regulators, and investors that a company working on nuclear fuel takes non-proliferation seriously," Grae stated. "He spent his last two decades arguing that the same seriousness could make nuclear energy larger, not smaller. He asked hard questions at every board meeting I attended, and Lightbridge is a better, more credible company for it."
Graham was named Chairman Emeritus of Lightbridge in 2024, a testament to his continued influence even in retirement. His family was informed of his passing, and the company extended its deepest condolences to them.