Clear Street has tapped industry veteran Mark Daniels as its new head of platform sales in New York, a move that adds another heavyweight to the fast-growing U.S. prime broker’s senior bench.Daniels, who confirmed the appointment on social media, brings more than two decades of experience in prime brokerage and clearing. He most recently led prime clearing at Marex, the London-based commodities and financial markets group that has been broadening its clearing franchise since its 2024 Nasdaq listing.Before M ...