BGCP is trying to buy another CRE firm. It seems obvious from the last failed attempt to add another company, after adding two others that their goal is to exit the securities business, as they do not have enough money for both. Sell your stock now, and we will sue them later. This is outrageous, making this transition on the backs of shareholders, as well as disenfranchising employees who are in the securities business with a dead stock.
Read a little about changes in regulations and the declining volume in trading. BGCP is being "exited from" the securities business whether they (or you) like it or not. Going into CRE is an attempt to survive. Good luck on your lawsuit. You will get bupkes. Nada. Zilch.