Ainsley paid $780,000 for the property in Nov. 2000. The 5,356-square-foot house was built in 2006 in the Bridgehampton Bayside neighborhood.
Ms. LoBue is vice president of credit derivatives at Goldman Sachs Group Inc., where she previously served as managing director.
Ms. Ainsley is a merchandising executive who has been vice president of product development at Limited Brands and vice president of design at Jones Apparel Group.
She previously was director of product development at Talbots and at Women's Sportswear.
She received a B.A. in business from Michigan State University.
Ainsley also sold a home at " target="_new">6 Ludlow Green in Bridgehampton in June 2000.
According to BlockShopper.com, there have been 35 home sales in Bridgehampton during the past 12 months, with a median sales price of $2.585 million.
Address: 51 Bridgefield Road
Buyer(s): Robert Lobue and Lindsay Lobue
Seller(s): Barbara Ainsley
Sale date: Mar. 12, 2010