 EAST RUTHERFORD, NJ, Aug. 12, 2021 GLOBE NEWSWIRE -- MamaMancinis Holdings, Inc. NASDAQ: MMMB, a marketer of specialty pre-prepared, frozen and refrigerated food products, announced that management will participate in a virtual closing bell ceremony at the Nasdaq Stock Market today, August 12, 2021 in celebration of listing its common shares on the Nasdaq Capital Market on July 15, 2021. 