Jonathan and his family have been BJ members since 2011. Jonathan is a co-founder of Argentem Creek Partners, an emerging markets-focused asset manager, where he oversees investments in Latin America. Prior to that, he held positions at Black River Asset Management and J.P. Morgan. He has a BA in Economics from the University of Michigan in Ann Arbor and an MA in Political Economy from New York University. Jonathan and his wife, Oriyan, have two daughters, Maya and Rena, who have grown up at BJ.