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Josh Birnbaum
Chief Investment Officer (“CIO”)
Josh worked at Goldman Sachs for 15 years in fixed income trading, focusing on mortgage-backed securities and derivatives. Prior to founding Tilden Park, he was a Managing Director at Goldman Sachs serving as co-manager of trading in the Structured Products Group, which trades all securitized products including RMBS, CMBS, ABS and CDOs. During his career at Goldman Sachs, he served as desk head or lead trader across a wide spectrum of mortgage products including: mortgage credit, mortgage derivatives and mortgage passthroughs. Josh earned a B.S. in Economics summa cum laude with a concentration in Finance from the Wharton School at the University of Pennsylvania in 1993.
Jeremy Primer
Head of Research & Chief Risk Officer (“CRO”)
Jeremy worked for 16 years in mortgage research, modeling and strategy roles at major broker-dealers. Prior to co-founding Tilden Park, he and Josh spent over 10 years working closely together on the same team at Goldman Sachs. From 2006 through early 2008, Jeremy was a Vice President and senior mortgage trading strategist at Goldman Sachs. Previously, he was an Executive Director and head of prime and Alt-A mortgage modeling at Morgan Stanley from 2004 to 2006. From 1993 to 2004, he held a variety of roles at Goldman Sachs, including head of mortgage modeling, prepayment strategist and mortgage derivatives desk strategist. Jeremy holds a B.A. in Mathematics magna cum laude from Princeton University and an M.A. in Mathematics from Harvard University.
Sam Alcoff
Chief Operating Officer (“COO”) & Chief Technical Officer (“CTO”)
Before Tilden Park, Sam was a Director in the Technology and Risk Management group at Drake Management where he led the team responsible for generating security level analytics. Prior to Drake, Sam worked with the Distributed Capital Group to develop an innovative FX hedging product. From 1998 to 2005, Sam worked at BlackRock. As a Director in BlackRock Solutions, Sam led the software engineering group where he was responsible for the architecture and development of key trading system applications, interfaces and infrastructure used internally by BlackRock as well as all BlackRock Solutions clients. Sam earned a J.D. from Villanova University School of Law and passed the bar in New York and New Jersey in 1997. Additionally, Sam holds a B.S. in Engineering, concentrated in Computer Science and a B.A. in History and Sociology of Science, both from University of Pennsylvania.
Robert Rossitto, CPA
Chief Financial Officer (“CFO”)
Robert has 14 years of experience in the financial services industry specializing in middle and back office administration for hedge funds, investment managers and mutual funds. Most recently he served as Chief Financial Officer of WCG Management, LP (“WCG”), a multi-billion dollar investment adviser. Prior to WCG, Robert was the Director of Finance and Accounting at Dillon Read Capital Management, LP (“Dillon Read”) where he was responsible for overseeing the administrator and compiling financial statements for investment vehicles under management. Before Dillon Read, Robert worked at Deloitte & Touche where he defined policies, developed processes and implemented technology solutions for many start up and existing advisory clients. Robert earned a M.S. in Finance from Saint Joseph’s University and a B.S. in Accounting from the University of Delaware.