ProKidney Corp (NASDAQ:PROK) is one of the best healthcare penny stocks to buy now. On September 8, at the Morgan Stanley 23rd Annual Global Healthcare Conference, the company reiterated its focus on the promising cell therapy, Reparencel. ProKidney Corp (PROK) Touts Reparencel Therapy for Growth yezry/Shutterstock.com The company anticipates top-line results from the cell therapy currently in Phase 3 of the Proactive One study by the second quarter of 2027. Enrollment in the ProAct One study is 50% comp ...