On this page we presented the AMPH earnings and revenue history archive for Amphastar Pharma, comparing the historical top line revenue performance quarter by quarter, as well as the AMPH earnings per share history. Any self directed investor doing their due diligence on AMPH (or any other given stock) can benefit from researching all of the Amphastar Pharma past earnings and revenue results going backwards in time, and to help you with this Amphastar Pharma earnings history research, on this page we presented each quarter's resulting numbers in both table and graphical form for easy comparison. Studying these numbers can help an investor by providing important context with which to think about AMPH's next earnings report. In your continued research on Amphastar Pharma we hope you will be sure to check out the further links included for earnings surprises as well as next earnings dates for AMPH. Thanks for visiting, and the next time you need to research AMPH earnings history (or the earnings history of another stock), we hope you'll think of our site as your go-to earnings history research resource of choice.