 NEW YORK, May 14, 2021 PRNewswire -- NASDAQ: MDCA MDC Partners Inc. MDC Partners or the Company announced today that Mark Penn, Chairman and CEO, and Frank Lanuto, Chief Financial Officer, will present at two upcoming investor conferences: The 16th Annual Needham Virtual Technology Media Conference on Tuesday, May 18 from 11-11:40 a.m. ET The 2021 Sidoti Virtual Microcap Conference on May 19, 2021 from 10:45-11:15 a.m. 