 EAST RUTHERFORD, NJ, April 18, 2022 GLOBE NEWSWIRE -- MamaMancinis Holdings, Inc. NASDAQ: MMMB, a marketer and distributor of specialty pre-prepared all-natural foods, today announced that management will participate in the Planet MicroCap Showcase 2022 in Las Vegas, Nevada and the LD Micro Invitational XII in Westlake Village, California. 