MCLEAN, VA--(Marketwired - May 26, 2015) - Freddie Mac (OTCQB: FMCC) today announced its intention to sell its fourth Structured Agency Credit Risk (STACRŽ) debt notes offering this year of $425.6 million, pending market conditions. Through STACR, Freddie Mac transfers a portion of its credit risk on certain groups of loans to private investors.