A number of the biggest mortgage producers in the primary market posted heavy increases in their delivery of conforming loans to Fannie Mae and Freddie Mac during the third quarter, according to a new ranking and analysis by Inside MBS & ABS. The top five sellers to the government-sponsored enterprises have delivered $333.14 billion of mortgages into Fannie and Freddie pass-through securities through the first nine months of the year. That is just over half,… [One data table included]