Berkshire Hathaway INC (BRK-B) SEC Filings — 2007 0 SEC filings for Berkshire Hathaway INC (BRK-B) in 2007. FilingsNo filings found for BRK-B in 2007. ExploreAll BRK-B Filings · BRK-B 2006 · BRK-B 2008 · All 2007 Filings