Berkshire Hathaway INC (BRK-B) SEC Filings — 2001 0 SEC filings for Berkshire Hathaway INC (BRK-B) in 2001. FilingsNo filings found for BRK-B in 2001. ExploreAll BRK-B Filings · BRK-B 2000 · BRK-B 2002 · All 2001 Filings