Investors apparently complained about securities broker Mark Allen Herding [CRD: 2239357, Phoenix, Arizona], based on disclosures on Financial Industry Regulatory Authority (FINRA) BrokerCheck. Herding worked for Cambridge Investment Research Inc. from October 19, 2012, to February 14, 2018, and Cambridge Investment Research Advisors Inc. from November 15, 2012, to February 14, 2018. Since January 31, […]