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19.61
0.36%
-0.0972
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 June 16, 2026, is $19.61.
- 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 194.04% to $19.61 now.
- The 52-week high stock price for AMPH is $31.26, representing a 59.41% increase from the current share price, occurred on September 02, 2025.
- The 52-week low stock price for AMPH is $16.64, indicating a -15.13% decrease from the current share price, occurred on May 18, 2026.
- The closing price of Amphastar Pharmaceuticals Inc (AMPH) stock in the beginning of 2025 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 |
|---|---|---|---|---|---|
| Jun 16, 2026 | $20.41 | $19.63 | $0.775 | 105,980.0 | -0.41% |
| Jun 15, 2026 | $20.29 | $19.59 | $0.695 | 528,512.0 | -1.89% |
| Jun 12, 2026 | $20.55 | $19.90 | $0.65 | 377,788.0 | -2.14% |
| Jun 11, 2026 | $20.64 | $20.10 | $0.545 | 463,541.0 | +1.18% |
| Jun 10, 2026 | $20.77 | $19.98 | $0.785 | 405,165.0 | +0.64% |
| Jun 09, 2026 | $20.27 | $19.53 | $0.74 | 506,256.0 | +3.97% |
| Jun 08, 2026 | $19.84 | $19.34 | $0.51 | 446,465.0 | -1.77% |
| Jun 05, 2026 | $20.14 | $18.85 | $1.29 | 748,136.0 | +5.56% |
| Jun 04, 2026 | $18.89 | $18.28 | $0.615 | 459,231.0 | +3.20% |
| Jun 03, 2026 | $18.36 | $17.73 | $0.63 | 509,269.0 | -1.79% |
| Jun 02, 2026 | $18.67 | $18.10 | $0.57 | 810,460.0 | +0.16% |
| Jun 01, 2026 | $19.01 | $18.22 | $0.79 | 569,685.0 | -2.28% |
| May 29, 2026 | $19.46 | $18.55 | $0.91 | 848,896.0 | -2.33% |
| May 28, 2026 | $19.55 | $19.02 | $0.535 | 621,213.0 | +1.05% |
| May 27, 2026 | $19.34 | $18.50 | $0.835 | 497,077.0 | +1.54% |
| May 26, 2026 | $19.12 | $18.45 | $0.67 | 670,766.0 | +2.17% |
| May 22, 2026 | $18.44 | $17.93 | $0.51 | 485,174.0 | +1.38% |
| May 21, 2026 | $18.37 | $17.75 | $0.615 | 1,656,969.0 | +0.44% |
| May 20, 2026 | $18.18 | $17.70 | $0.485 | 868,756.0 | +1.46% |
| May 19, 2026 | $17.91 | $17.00 | $0.9125 | 725,146.0 | +3.60% |
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 2026
| Month | High | Low | High - Low | Volume | % Change |
|---|---|---|---|---|---|
| Jun, 2026 | $20.77 | $17.73 | $3.04 | 5,930,488.0 | +4.14% |
| May, 2026 | $24.34 | $16.64 | $7.70 | 16,106,035.0 | -14.16% |
| Apr, 2026 | $23.26 | $19.68 | $3.58 | 9,083,801.0 | +12.10% |
| Mar, 2026 | $21.14 | $17.03 | $4.11 | 13,831,742.0 | -3.16% |
| Feb, 2026 | $29.46 | $19.83 | $9.63 | 9,033,886.0 | -23.63% |
| Jan, 2026 | $29.52 | $25.42 | $4.10 | 6,297,265.0 | -1.08% |
Amphastar Pharmaceuticals Inc Stock (AMPH) Price History 2025
| Month | High | Low | High - Low | Volume | % Change |
|---|---|---|---|---|---|
| Dec, 2025 | $27.84 | $25.16 | $2.68 | 7,597,226.0 | -2.53% |
| 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% |
6.96%
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