A mixed bag of top-line phase II data prompted stellar stock results for Prokidney Corp. and its chronic kidney disease (CKD) and diabetes therapy, rilparencel. The results came from two arms of the study, each with its own treatment regime. The market heartily took to the results as the company’s stock (NASDAQ:PROK) closed 515% upward at $3.73 per share after starting the day under $1 each.