market folly

Warren Buffett's Berkshire Hathaway has filed a 13G on shares of DaVita (DVA).  Per the filing, they have disclosed a 10.8% ownership stake in the company with 10,197,569 shares. 

This is more of a formality as their position remains unchanged from when we detailed Berkshire's recent Form 4 filing where they disclosed they had purchased more shares in late September. 

This just goes to show why you should track all SEC filings instead of just focusing on the 13G's and 13F's.  The Form 4 was filed last week and already disclosed everything this 13G does a week later. The 13G was required due to portfolio activity on September 21st.

Hedge Funds Own DVA Too

As we mentioned when Berkshire was buying DaVita late last month, this portfolio activity is most likely attributed to new manager Ted Weschler.  DVA was one of his big holdings at his previous hedge fund.

Also, our premium newsletter flagged that DVA was a consensus buy among hedge funds back in August.  Other top holders of shares at the end of Q2 included Viking Global, Lone Pine Capital, Pennant Capital, and more.

Per Google Finance, DaVita is "a provider of dialysis services in the United States for patients suffering from chronic kidney failure, also known as end stage renal disease (ESRD)."