Here's What's Been Going On With Relypsa By: Benzinga via Benzinga December 24, 2015 at 10:06 AM EST On Thursday morning, Relypsa Inc (NASDAQ: RLYP) activist OrbiMed cut its stake from 19 percent to 17.75 percent, which has followed ... Read More >> Related Stocks: Astrazeneca Plc ADR Sanofi-Aventis S.A. ADR