 NEW YORK--BUSINESS WIRE--Greenhill Co., Inc. NYSE: GHL, a leading independent investment bank, plans to announce its first quarter 2022 financial results after the market close on Wednesday, April 27, 2022. Greenhill will also host a related conference call beginning at 4:30 p.m. Eastern Time that same day April 27, 2022, accessible via telephone and the internet. Scott L. Bok, Chairman and Chief Executive Officer, will review the Firms first quarter financial results and related m 