Buffett's Berkshire Hathaway now controls more than 11 percent of the stock of kidney dialysis firm DaVita Inc.
Warren Buffett's Berkshire Hathaway now controls more than 11 percent of the stock of kidney dialysis firm DaVita Inc.
Berkshire filed documents with the Securities and Exchange Commission last week showing it owned nearly 11 million DaVita shares. DaVita runs nearly 2,000 outpatient dialysis clinics.
