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26.50
1.65%
0.43
After Hours:
26.50
Amphastar Pharmaceuticals Inc Stock (AMPH) Price History
The historical daily chart and data for Amphastar Pharmaceuticals Inc stock (AMPH), show that the latest closing stock price as of December 18, 2025, is $26.50.
- Amphastar Pharmaceuticals Inc all-time high stock price is $67.66, occurred on August 09, 2023.
- The lowest Amphastar Pharmaceuticals Inc stock price recorded was $6.67 on June 25, 2014. Since then, Amphastar Pharmaceuticals Inc's stock price has risen over 297.30% to $26.50 now.
- The 52-week high stock price for AMPH is $40.74, representing a 53.74% increase from the current share price, occurred on December 20, 2024.
- The 52-week low stock price for AMPH is $20.39, indicating a -23.08% decrease from the current share price, occurred on August 01, 2025.
- The closing price of Amphastar Pharmaceuticals Inc (AMPH) stock in the beginning of 2024 was $23.07. The stock closed the year at $28.02, a gain of over 21.46% for the year.
The table below shows more information about AMPH historical price data:
Daily
Weekly
Monthly
7D
30D
60D
YTD
1Y
| Date | High | Low | High - Low | Volume | % Change |
|---|---|---|---|---|---|
| Dec 18, 2025 | $26.62 | $25.92 | $0.70 | 333,962.0 | +1.65% |
| Dec 17, 2025 | $26.52 | $25.47 | $1.05 | 365,293.0 | +1.80% |
| Dec 16, 2025 | $26.31 | $25.16 | $1.15 | 411,086.0 | -2.66% |
| Dec 15, 2025 | $26.50 | $25.56 | $0.94 | 472,889.0 | +4.12% |
| Dec 12, 2025 | $26.13 | $25.20 | $0.93 | 341,410.0 | -2.43% |
| Dec 11, 2025 | $25.94 | $25.47 | $0.47 | 284,940.0 | +0.74% |
| Dec 10, 2025 | $25.91 | $25.22 | $0.69 | 483,522.0 | +0.23% |
| Dec 09, 2025 | $26.39 | $25.56 | $0.83 | 414,104.0 | -1.38% |
| Dec 08, 2025 | $26.84 | $25.95 | $0.895 | 300,935.0 | -2.84% |
| Dec 05, 2025 | $27.47 | $26.68 | $0.785 | 323,306.0 | -0.89% |
| Dec 04, 2025 | $27.84 | $26.97 | $0.8688 | 266,423.0 | -2.07% |
| Dec 03, 2025 | $27.82 | $26.75 | $1.07 | 317,346.0 | +3.41% |
| Dec 02, 2025 | $27.62 | $26.23 | $1.39 | 456,357.0 | -2.84% |
| Dec 01, 2025 | $27.82 | $27.30 | $0.52 | 355,915.0 | -0.90% |
| Nov 28, 2025 | $27.78 | $27.37 | $0.41 | 208,313.0 | +1.24% |
| Nov 26, 2025 | $27.83 | $27.23 | $0.5963 | 410,569.0 | -1.19% |
| Nov 25, 2025 | $27.76 | $26.90 | $0.86 | 375,501.0 | +3.67% |
| Nov 24, 2025 | $26.79 | $25.82 | $0.975 | 346,484.0 | +2.69% |
| Nov 21, 2025 | $26.53 | $25.40 | $1.13 | 392,910.0 | +2.56% |
| Nov 20, 2025 | $26.01 | $24.92 | $1.09 | 355,779.0 | -0.04% |
| Nov 19, 2025 | $26.28 | $25.13 | $1.15 | 524,386.0 | -2.05% |
Amphastar Pharmaceuticals Inc Stock (AMPH) Year by Year Price History
In this detailed analysis, we present a comprehensive overview of the price movements of Amphastar Pharmaceuticals Inc stock over the years. By exploring the year-by-year data, investors can gain valuable insights into the historical performance and volatility of AMPH shares. From significant milestones and fluctuations to notable trends, this in-depth examination of Amphastar Pharmaceuticals Inc stock price history provides a foundation for understanding how the company's stock has evolved over time.
Amphastar Pharmaceuticals Inc Stock (AMPH) Price History 2025
| Month | High | Low | High - Low | Volume | % Change |
|---|---|---|---|---|---|
| Dec, 2025 | $27.84 | $25.16 | $2.68 | 5,461,450.0 | -4.33% |
| Nov, 2025 | $29.00 | $23.67 | $5.33 | 9,049,007.0 | +8.63% |
| Oct, 2025 | $27.39 | $22.94 | $4.45 | 8,362,746.0 | -4.32% |
| Sep, 2025 | $31.26 | $25.95 | $5.31 | 10,233,521.0 | -12.97% |
| Aug, 2025 | $31.23 | $20.39 | $10.84 | 13,060,640.0 | +46.16% |
| Jul, 2025 | $24.52 | $20.43 | $4.09 | 9,990,721.0 | -8.75% |
| Jun, 2025 | $27.40 | $22.81 | $4.59 | 10,316,734.0 | -10.70% |
| May, 2025 | $25.92 | $23.20 | $2.72 | 11,844,539.0 | +5.33% |
| Apr, 2025 | $29.27 | $22.64 | $6.63 | 13,298,283.0 | -15.80% |
| Mar, 2025 | $29.37 | $25.89 | $3.48 | 12,382,251.0 | +1.97% |
| Feb, 2025 | $34.39 | $27.82 | $6.57 | 10,545,190.0 | -18.47% |
| Jan, 2025 | $39.01 | $34.60 | $4.41 | 11,099,058.0 | -6.09% |
Amphastar Pharmaceuticals Inc Stock (AMPH) Price History 2024
| Month | High | Low | High - Low | Volume | % Change |
|---|---|---|---|---|---|
| Dec, 2024 | $46.11 | $36.80 | $9.31 | 11,753,587.0 | -18.48% |
| Nov, 2024 | $53.95 | $43.09 | $10.86 | 8,864,599.0 | -10.57% |
| Oct, 2024 | $51.84 | $45.50 | $6.34 | 6,181,025.0 | +4.12% |
| Sep, 2024 | $50.62 | $43.60 | $7.02 | 7,247,128.0 | -0.43% |
| Aug, 2024 | $49.30 | $38.42 | $10.88 | 8,332,208.0 | +11.99% |
| Jul, 2024 | $44.25 | $36.56 | $7.69 | 8,991,845.0 | +8.80% |
| Jun, 2024 | $43.49 | $39.53 | $3.96 | 6,654,536.0 | -5.50% |
| May, 2024 | $46.62 | $41.21 | $5.41 | 7,425,781.0 | +2.62% |
| Apr, 2024 | $43.97 | $38.43 | $5.54 | 7,194,165.0 | -6.06% |
| Mar, 2024 | $48.00 | $42.16 | $5.84 | 9,536,304.0 | -5.71% |
| Feb, 2024 | $56.45 | $44.58 | $11.88 | 9,097,171.0 | -12.72% |
| Jan, 2024 | $65.92 | $52.33 | $13.59 | 11,255,123.0 | -13.73% |
Amphastar Pharmaceuticals Inc Stock (AMPH) Price History 2023
| Month | High | Low | High - Low | Volume | % Change |
|---|---|---|---|---|---|
| Dec, 2023 | $63.67 | $54.06 | $9.61 | 9,226,713.0 | +9.82% |
| Nov, 2023 | $58.35 | $44.42 | $13.93 | 9,463,879.0 | +24.41% |
| Oct, 2023 | $48.50 | $43.78 | $4.72 | 6,909,249.0 | -1.57% |
| Sep, 2023 | $55.44 | $44.86 | $10.58 | 12,892,923.0 | -13.73% |
| Aug, 2023 | $67.66 | $51.43 | $16.23 | 8,441,845.0 | -12.16% |
| Jul, 2023 | $63.72 | $54.53 | $9.19 | 7,545,301.0 | +5.60% |
| Jun, 2023 | $58.70 | $44.55 | $14.16 | 11,258,527.0 | +29.52% |
| May, 2023 | $45.50 | $35.69 | $9.81 | 8,573,949.0 | +24.04% |
| Apr, 2023 | $44.15 | $35.62 | $8.53 | 8,031,621.0 | -4.61% |
| Mar, 2023 | $38.22 | $33.61 | $4.61 | 8,754,997.0 | +17.70% |
| Feb, 2023 | $33.13 | $29.91 | $3.22 | 4,105,630.0 | +5.29% |
| Jan, 2023 | $31.28 | $27.58 | $3.70 | 3,984,619.0 | +7.99% |
12.55%
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