SecuritiesandExchangeActof1934againstShearson,Hammill&Co.,Inc.("Shearson")complaining,in substance,thatShearson,aninvestmentbankertoTidalMarineInternationalCorp.("TidalMarine"),cameinto possessionofmaterialadverseinformationaboutTidalMarine,andneverthelesspromotedthesaleofTidal Marinestocktobrokeragecustomers,including...