Warren Buffett disciple Guy Spier built career on value investing. A rare cancer changed everything
- Posted on June 5, 2026
- By CNBC
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- 1 min read
Warren Buffett disciple Guy Spier built career on value investing. A rare cancer changed everything
After a glioblastoma diagnosis, value investor Guy Spier rethought wealth, time and legacy — and the impact he can have on rare disease research.
