Gordon Moore

Lifetime donations: $5 billion
Net worth: $6.5 billion
Generosity Index: 77%
Gordon Moore cofounded Intel in 1968, but these days he is focused on philanthropy. He retired from his corporate positions in 2006, and currently runs the Gordon and Betty Moore Foundation with his wife.
The foundation aims to make an impact in environmental conservation, patient care, science, and the San Francisco community, and has wide-spanning programs that include everything from the Marine Conservation Initiative to the Thirty Meter Telescope.
Source: Wealth-X