Reata Pharmaceuticals (NASDAQ:RETA – Get Free Report) was downgraded by Guggenheim from a “buy” rating to a “neutral” rating in a note issued to investors on Friday, FlyOnTheWall reports. RETA has been the subject of several other reports. Stifel Nicolaus lowered Reata Pharmaceuticals from a “buy” rating to a “hold” rating in a report on […]