19.61
price down icon0.15%   -0.03
after-market After Hours: 19.61
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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 July 06, 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 194.00% to $19.61 now.
  • The 52-week high stock price for AMPH is $31.26, representing a 59.43% increase from the current share price, occurred on September 02, 2025.
  • The 52-week low stock price for AMPH is $16.64, indicating a -15.12% 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:
Date High Low High - Low Volume % Change
Jul 06, 2026 $20.00 $19.08 $0.925 313,781.0 -0.15%
Jul 02, 2026 $20.35 $19.63 $0.72 315,753.0 -2.29%
Jul 01, 2026 $20.54 $19.91 $0.63 422,006.0 -0.40%
Jun 30, 2026 $20.71 $19.86 $0.85 400,207.0 -2.56%
Jun 29, 2026 $21.23 $19.66 $1.57 727,053.0 -4.91%
Jun 26, 2026 $21.80 $20.88 $0.925 623,975.0 +3.52%
Jun 25, 2026 $22.00 $20.79 $1.21 481,265.0 +0.10%
Jun 24, 2026 $21.09 $19.77 $1.32 701,032.0 +7.63%
Jun 23, 2026 $19.58 $18.50 $1.08 660,867.0 +6.55%
Jun 22, 2026 $18.89 $18.22 $0.675 767,365.0 -2.55%
Jun 18, 2026 $19.66 $18.70 $0.96 1,327,567.0 -3.09%
Jun 17, 2026 $20.26 $19.15 $1.11 1,008,517.0 -2.76%
Jun 16, 2026 $20.41 $19.61 $0.79 724,186.0 +1.27%
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%

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
Jul, 2026 $20.54 $19.08 $1.46 1,365,321.0 -2.82%
Jun, 2026 $22.00 $17.73 $4.27 13,246,542.0 +7.06%
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%
$55.14
price up icon 1.03%
RDY RDY
$14.36
price down icon 0.14%
$25.13
price up icon 0.52%
$174.10
price down icon 0.09%
$16.80
price up icon 0.60%
$547.25
price down icon 1.56%
Cap:     |  Volume (24h):