FINRA Bars MICHAEL CASTILLERO After Unauthorized Trading Allegations Surface Michael Alejandro Castillero (CRD#: 4583917, New York, New York) is an ex Alexander Capital, L.P. securities broker who the Financial Industry Regulatory Authority (“FINRA”) barred for refusing to cooperate while under investigation. Specifically, Castillero submitted a Letter of Acceptance, Waiver and Consent (“AWC”) #: 2018058649501 on […]