AppNexus Expands, Extends Lease at 28 & 40 West 23rd Street
NEW YORK—AppNexus has signed a long-term, 220,000-sq.-ft. leaseexpansion and extension at 28 & 40 West 23rd Street. Colliers International’s Andrew Roos, vice chairman, leads the leasing efforts at the property on behalf of its owners, which include the Cohen, Roos and Carmel families. Michael Cohen, president of Colliers International Tri-State, also represented the leasing efforts