NEW YORK--(BUSINESS WIRE)--Liquidnet, the global institutional trading network, today announced that Chris Dennis has joined the company as Head of US Fixed Income Sales. Chris will be responsible for sales and strategy as Liquidnet builds out its high yield and investment grade trading platform scheduled to launch this quarter. Based in New York, he reports directly to Liquidnet’s Head of Fixed Income Constantinos Antoniades. “Our network of the world’s leading asset managers owns the majority