Amphastar Pharmaceuticals Inc. (AMPH)
NASDAQ · Healthcare
Amphastar Pharmaceuticals Inc. Stock Price History 2012–2025
Amphastar Pharmaceuticals Inc.
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Historical daily closing price for Amphastar Pharmaceuticals Inc. since 2014, adjusted for splits and dividends. The latest closing stock price for Amphastar Pharmaceuticals Inc. as of June 10, 2026 is 20.29.
- The all-time high Amphastar Pharmaceuticals Inc. stock closing price was 65.00 on August 8, 2023.
- The Amphastar Pharmaceuticals Inc. 52-week high stock price is 30.81, which is 51.8% above the current share price.
- The Amphastar Pharmaceuticals Inc. 52-week low stock price is 16.87, which is 16.9% below the current share price.
- The average Amphastar Pharmaceuticals Inc. stock price for the last 52 weeks is 24.33.
Annual Close Price
YEAR-END CLOSE · USD
ANNUAL % CHANGE · %
| Year | Average | Year Open | Year High | Year Low | Year Close | Annual % Change |
|---|---|---|---|---|---|---|
| 2026 | 22.56 | 26.46 | 29.40 | 16.87 | 20.29 | -24.23% |
| 2025 | 27.02 | 36.36 | 38.48 | 20.62 | 26.78 | -27.88% |
| 2024 | 45.62 | 62.29 | 63.45 | 36.84 | 37.13 | -39.97% |
| 2023 | 46.11 | 28.20 | 65.00 | 27.99 | 61.85 | +120.74% |
| 2022 | 31.43 | 23.07 | 42.29 | 22.96 | 28.02 | +20.31% |
| 2021 | 19.38 | 20.14 | 23.29 | 17.11 | 23.29 | +15.81% |
| 2020 | 18.84 | 19.35 | 22.46 | 12.66 | 20.11 | +4.25% |
| 2019 | 20.81 | 19.76 | 25.28 | 17.07 | 19.29 | -3.07% |
| 2018 | 18.45 | 19.17 | 22.51 | 14.63 | 19.90 | +3.43% |
| 2017 | 16.68 | 18.50 | 19.75 | 12.20 | 19.24 | +4.45% |
| 2016 | 15.91 | 13.70 | 21.55 | 10.53 | 18.42 | +29.44% |
Amphastar Pharmaceuticals Inc. Stock Price History — FAQ
Amphastar Pharmaceuticals Inc. (AMPH) stock price history over the last 14 years — annual and quarterly figures with year-over-year growth and charts.
Where can I see AMPH's stock price history history?
The chart and table above show Amphastar Pharmaceuticals Inc.'s stock price history by year and by quarter, including the growth rate.