Daniel Petherick, former managing director and head of equity derivative flow sales for Europe, Middle East and Africa (EMEA) at Citigroup in London, has joined Société Générale as head of European flow derivatives sales, also in London. A spokesperson at SG told SRP that Petherick joined on December 1 in a newly created role to cover European flow derivatives sales. He reports to Peter McGahan, deputy head of global equity flow. Petherick joins from Citi where he spent five years as head of E