Alexander Klabin, a former hedge fund manager, completed the investment in Sotheby’s, a broker of fine and decorative art, jewelry, real estate, and collectibles. Financial Services. Financial terms were not disclosed. "Alex shares our vision of expanding the financing solutions we can offer to our clients and leveraging technology more effectively to develop new financial products for collectors. This partnership will enhance our ability to provide clients with state-of-the art capital solutions and responsive and comprehensive client service," Charles F Stewart, Sotheby's CEO. Alexander Klabin completed the investment in Sotheby’s.​ Alexander Klabin, a former hedge fund manager, completed the investment in Sotheby’s, a broker of fine and decorative art, jewelry, real estate, and collectibles. Mr Klabin will serve as Executive Chairman of Sotheby's Financial Services.