"Researchers who hold at least three grants from the National Institutes of Health (NIH) make up a growing portion of its grantees, according to a new study. White men predominate among these “super” principal investigators (PIs), with women and Black researchers much less likely to be part of this elite group."

https://www.science.org/content/article/women-black-researchers-less-likely-hold-multiple-nih-grants