Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH) Q4 2021 Earnings Conference Call March 10, 2022 5:00 PM ET Company Participants Dan Dischner - VP, Corporate Communications Bill Peters - CFO Tony Marrs - SVP, Regulatory Affairs and Clinical Operations Conference Call Participants David Amsellem - Piper Sandler Elliot Wilbur - Raymond James Jacob Hughes - Wells Fargo Serge Belanger - Needham & Company Tim Chiang - Northland Securities David Steinberg - Jefferies Operator Greetings and welcome to the Amphastar P ...