warren buffett
Warren Buffett.
  • Warren Buffett's Berkshire Hathaway has deployed nearly $90 billion in the past three years.
  • Berkshire's gross spending on stocks hit $107 billion, but it purchased $18 billion on a net basis.
  • Buffett's team also spent $60 billion on buybacks and acquired Alleghany for $12 billion.

Warren Buffett's Berkshire Hathaway has put almost $90 billion to work in the past three years — but still ended 2022 with a nearly $130 billion cash pile, its latest annual report shows.