Berkshire Hathaway INC (BRK-B) SEC Filings — 2009 0 SEC filings for Berkshire Hathaway INC (BRK-B) in 2009. FilingsNo filings found for BRK-B in 2009. ExploreAll BRK-B Filings · BRK-B 2008 · BRK-B 2010 · All 2009 Filings