 RANCHO CUCAMONGA, Calif., May 27, 2021 GLOBE NEWSWIRE -- Amphastar Pharmaceuticals, Inc. NASDAQ: AMPH announced today that Bill Peters, Executive V.P. and CFO, Dan Dischner, V.P of Corporate Communications, Tony Marrs, Sr. V.P Regulatory Affairs and Clinical Operations, and Jacob Liawatidewi, Executive V.P. Corporate Administration Center and Sales Marketing, will participate in an Analyst-Moderated fireside chat at the Jefferies Virtual Healthcare Conference on Thursday, June 3, 2021 at 2:30 pm Eastern time. 