STIFEL, NICOLAUS & COMPANY, INC was ordered to pay over $1.5 million to three clients by a Financial Industry Regulatory Authority (FINRA) arbitration panel.  These three clients alleged that Stifel, Nicolaus & Co failed to properly supervise their broker, KENNETH DAVID BLUMBERG (KENNETH BLUMBERG) CRD#: 1585520, who they claim allegedly over-concentrated his clients into biotechnology […]