Paul G. Allen, the younger brother of Microsoft cofounder Bill Gates and a leading tech philanthropist, passed away in October 2018 at age 65. His death followed a public battle with non-Hodgkin lymphoma, which had been diagnosed years earlier and had responded to treatment before ultimately proving terminal.
Allen stepped back from Microsoft in the early 1980s to focus on broader ventures, from aerospace to media, while his giving through the Paul G. Allen Family Foundation shaped global health, conservation, and computing research. Below is a snapshot of key facts about his life, career, and cause of death.
| Category | Detail | Notes |
|---|---|---|
| Full Name | Paul Gardner Allen | Born January 21, 1953 in Seattle, Washington |
| Date of Death | October 15, 2018 | Died in Seattle, Washington |
| Cause of Death | Complications from non-Hodgkin lymphoma | Diagnosed in 2009, initial treatment led to remission, later recurrence |
| Age at Death | 65 | Passed away several years after initial diagnosis |
Early Partnership with Bill Gates and Microsoft Exit
Childhood and College Connection
Allen met Bill Gates at Lakeside School in Seattle, where their shared interest in computers led to early programming projects. This bond formed the foundation for what would become Microsoft in 1975.
Co-founding Role and Health-Driven Departure
Allen was a co-founder of Microsoft, but he left full-time involvement in 1983 due to Hodgkin’s disease, which was later confirmed as non-Hodgkin lymphoma. His departure created space for the company to scale rapidly while he focused on treatment and recovery.
Business Ventures Outside Microsoft
Vulcan Inc. and Aerospace Innovation
Allen founded Vulcan Inc. to manage his business portfolio, which included the aerospace company Scaled Composites. The firm achieved the first privately funded human spaceflight with SpaceShipOne in 2004, advancing commercial spaceflight long before similar efforts became common.
Media, Sports, and Cultural Investments
Through Vulcan, Allen owned the Seattle Seahawks and held stakes in the Portland Trail Blazers. He also backed the Museum of Pop Culture and the Allen Institute for Artificial Intelligence, reflecting his interest in both entertainment and cutting-edge research.
Health Journey and Non-Hodgkin Lymphoma
Initial Diagnosis and Remission
In 2009, Allen was diagnosed with non-Hodgkin lymphoma and underwent chemotherapy, achieving a period of remission. During this time, he scaled back public appearances but remained engaged in strategic philanthropy.
Recurrence and Final Years
The cancer recurred in 2014, prompting further treatment. By 2017, Allen had withdrawn from most business operations. His care team described the disease as advanced but managed with supportive care until his death in 2018.
Philanthropy and Scientific Legacy
Global Health and Conservation Support
The Paul G. Allen Family Foundation directed hundreds of millions toward global health initiatives, wildlife conservation, and climate research. Allen’s giving emphasized measurable outcomes and data-driven approaches.
Allen Institute and AI Research
The Allen Institute for Artificial Intelligence and the Allen Institute for Brain Science became major hubs for open research, providing large public datasets and tools used by scientists worldwide, extending his impact beyond his lifetime.
Key Takeaways on Paul G. Allen’s Life and Impact
- Co-founded Microsoft and helped establish the personal computing revolution before leaving in 1983 due to health concerns.
- Built Vulcan Inc. to pursue aerospace, sports, media, and philanthropic ventures, with a strong emphasis on data and research.
- Diagnosed with non-Hodgkin lymphoma in 2009, achieved initial remission, and faced recurrence while continuing high-impact projects.
- Championed open scientific research through the Allen Institute for AI and brain science, creating lasting public resources.
- Leveraged his wealth toward global health, conservation, and climate initiatives, shaping a legacy beyond technology.
FAQ
Reader questions
What type of cancer did Paul G. Allen have?
Paul G. Allen had non-Hodgkin lymphoma, a form of cancer that begins in the lymphatic system and was first diagnosed in 2009.
When was Paul G. Allen diagnosed and did he ever go into remission?
He was diagnosed in 2009 and initially achieved remission after chemotherapy, though the cancer later returned.
How did Paul G. Allen contribute to science and research after his diagnosis?
Allen increased funding for the Allen Institute for Artificial Intelligence and brain science, focusing on open-access research that advanced neuroscience and AI well into his final years.
What business projects did Paul G. Allen pursue alongside his health challenges?
He maintained involvement in Vulcan Inc., supporting aerospace milestones like SpaceShipOne and ongoing media, sports, and technology investments despite health setbacks.