Investors apparently complained about securities broker Sonia Maria Attkiss (also known as Sonia Tron) [CRD: 2936806, Westport, Connecticut], based on disclosures on FINRA BrokerCheck. Evidently, Sonia Attkiss has been registered with UBS Financial Services Inc. since November 20, 2015, and works out of the firm’s offices in New York, New York, and Westport, Connecticut. Read […]