Look up what dividend farming is. That will give you many more facts where ERBB is headed. That why ERBB has so many share. Spin off companies will buy out of the A/S and O/S to move share to there new publicly traded company. They will also pay ERBB share holders a dividend. Look at Phillip Morris when it was one company and spun off Kraft first they turned around and spun of phillip Morris intl. ERBB long and strong and that how I know about dividend farming cause I have own pm stock for 20 years.