| 7D | +4.5% |
| 1M | +8.7% |
| 3M | +24.1% |
| 6M | -25.0% |
| YTD | -20.3% |
| 1Y | -28.5% |
Amphastar Pharmaceuticals is a publicly traded American speciality pharmaceutical company. It was incorporated in May 2004 and primarily develops, manufactures, and sells inhalation and intranasal products.