Simon Dove will become head of liquidity strategy for EMEA at Instinet after four years with Tower Research Capital Europe.
In launching the service, the platform will allow for the simultaneous exchange of cash and securities between broker-dealers to settle US listed-equities trades.
Instinet acquired BlockCross from State Street in 2017 and will roll out the block trading platform across Europe.
Instinet reaches beyond equities to incorporate foreign exchange through launch of new agency trading business.
Winners of this year's awards will be announced on 21 November during the Leaders in Trading 2019 ceremony.
Seema Arora joins Instinet after 10 years with Kepler Cheuvreux and has previously worked at JP Morgan.
David Fellah will head up quantitative trading strategy research and execution consulting at Instinet, after just over a year at ITG.
When it comes to seeking liquidity under MiFID II, a survey of senior traders has found that periodic auctions and conditional order types are the most useful.
Jonathan Kellner appointed as chief executive of newly-formed exchange effective immediately.