Business Why Warren Buffett Changed His Mind On Fannie Mae And Freddie Mac Augusto Rossi - Sep 30, 2019, 11:19 am 0 Federal National Mortgage Association (OTCMKTS:FNMA) (Fannie Mae) and Federal Home Loan Mortgage Corp (OTCMKTS:FMCC) (Freddie Mac) were one of the companies that