The Bill & Melinda Gates Foundation is an American private foundation founded by Bill and Melinda Gates. It is reported as of 2020 to be the second largest charitable foundation in the world, holding $49.8 billion in assets. Bill and Melinda were reported in May 2021 to be in the process of divorcing.

Their statement said "Over the last 27 years, we have raised three incredible children and built a foundation that works all over the world to enable all people to lead healthy, productive lives, We continue to share a belief in that mission and will continue our work together at the foundation, but we no longer believe we can grow together as a couple in the next phase of our lives. "

This question asks if one of Bill or Melinda devotes significant amounts of their philanthropic efforts outside the existing Gates Foundation, such that the resources available to the foundation are meaningfully reduced.