Leadership Donald CallaghanManaging Partner Office: 480-935-2134 Cell: 215-919-3116 dcallaghan@gsisus.com See More Curt ThompsonManaging Partner Office: 480-935-2136 Cell: 480-216-9788 cthompson@gsisus.com See More Nick BotticelliChief Investment Strategist Cell: 224-688-0110 nbotticelli@gsisus.com See More Matt Underwood, CFA®, CAIA®Director of Research & Portfolio Management Office: 480-935-2210 Cell: 480-536-2097 munderwood@gsisus.com See More Dan ChesinDirector of Operations Office: 480-935-2137 dchesin@gsisus.com