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Zuckerberg and Chan pledged 99% of Facebook shares as fortune tops $200 billion

Nov 7, 2026 09:30 (2d ago)

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Mark Zuckerberg and Priscilla Chan committed 99% of their Facebook shares to philanthropy.
99% of Facebook shares were worth about $45 billion when pledged in 2015.
CZI has shifted funding toward AI-enabled biomedical research.