Somboun Thao (also known as Som Thao), of Madison, Wisconsin, a stockbroker registered with MML Investors Services LLC, has been barred from associating with any Financial Industry Regulatory Authority (FINRA) member in any capacity because Thao failed to respond to FINRA’s request for information. Letter No. 2022074049801 (February 6, 2023). On November 2, 2022, FINRA…