B
ERKSHIRE
H
ATHAWAY
INC.
2011 Annual Report (PDF file)
2011 SEC Form 10-K (PDF file)
2011 Financial Statement XBRL files
brka-20111231.xml
brka-20111231.xsd
brka-20111231_cal.xml
brka-20111231_def.xml
brka-20111231_lab.xml
brka-20111231_pre.xml
SEC XBRL Web Page