Mortgage lenders sold a total of $121.87 billion of loans that were originated by mortgage brokers and correspondents to Fannie Mae, Freddie Mac and Ginnie Mae during the first quarter of 2015, according to a new Inside Mortgage Trends analysis of loan-level mortgage-backed securities disclosures by the agencies. Third-party originated volume was up just 1.7 percent from the fourth quarter, while total issuance of agency MBS rose slightly more, by 3.7 percent ... [Includes one data chart]