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Amphastar Pharmaceuticals, Inc. (AMPH)
NASDAQ: AMPH · Real-Time Price · USD
23.08
-0.10 (-0.43%)
At close: Jun 27, 2025, 4:00 PM
23.38
+0.30 (1.30%)
After-hours: Jun 27, 2025, 5:27 PM EDT

Amphastar Pharmaceuticals Stock Price History

Historical Data

DateOpenHighLowCloseAdj. CloseChangeVolume
Jun 27, 202523.3223.4222.8623.0823.08-0.43%1,270,233
Jun 26, 202523.6023.7723.0323.1823.18-1.15%517,512
Jun 25, 202524.5124.5323.3123.4523.45-4.60%426,886
Jun 24, 202524.8325.0424.5324.5824.58-0.41%395,482
Jun 23, 202524.5024.7524.4024.6824.680.49%409,110
Jun 20, 202525.6725.8524.3524.5624.56-3.08%672,733
Jun 18, 202525.5825.8025.2625.3425.34-1.05%393,981
Jun 17, 202525.7826.0625.5425.6125.61-1.42%399,985
Jun 16, 202525.9626.0325.5925.9825.980.62%366,128
Jun 13, 202525.9326.2725.7025.8225.82-2.34%402,502
Jun 12, 202526.0826.5025.7726.4426.441.50%506,968
Jun 11, 202526.9427.0426.0226.0526.05-3.23%528,236
Jun 10, 202526.7627.4026.7026.9226.921.13%624,899
Jun 9, 202526.1726.8626.1026.6226.622.42%514,539
Jun 6, 202525.7626.0225.5325.9925.991.84%359,174
Jun 5, 202525.9025.9125.1925.5225.52-1.31%555,176
Jun 4, 202526.0126.5725.7625.8625.86-0.58%395,494
Jun 3, 202525.3926.1725.1326.0126.012.48%526,276
Jun 2, 202525.6126.0525.2625.3825.38-1.28%656,459
May 30, 202525.5925.9225.1525.7125.710.27%460,917
May 29, 202525.3925.7925.1825.6425.641.50%524,701
May 28, 202525.5125.6925.1225.2625.26-1.06%476,426
May 27, 202524.8625.7224.8125.5325.534.33%532,528
May 23, 202523.7424.4923.7424.4724.471.12%548,566
May 22, 202524.0024.3923.9324.2024.200.17%360,874
May 21, 202524.8124.8424.1524.1624.16-3.63%341,435
May 20, 202524.8325.2424.6725.0725.071.13%482,087
May 19, 202524.6424.9324.4324.7924.79-0.28%359,141
May 16, 202524.3224.9024.2024.8624.862.22%510,675
May 15, 202523.4124.7023.2024.3224.324.38%667,744
May 14, 202523.8823.9723.2723.3023.30-2.43%578,020
May 13, 202524.2124.4223.7723.8823.88-1.89%444,961
May 12, 202524.0524.5723.6024.3424.340.95%563,807
May 9, 202524.5425.0323.3024.1124.11-2.19%790,224
May 8, 202524.5925.3623.6824.6524.650.90%751,566
May 7, 202524.0324.6123.9524.4324.432.35%819,850
May 6, 202524.9525.0423.6923.8723.87-4.98%751,946
May 5, 202524.4625.3724.3425.1225.122.53%681,271
May 2, 202524.4124.6924.1924.5024.502.60%674,104
May 1, 202524.1924.5423.7623.8823.88-2.17%562,396
Apr 30, 202524.4424.5223.9124.4124.41-0.37%460,186
Apr 29, 202524.3524.6124.1924.5024.500.37%296,382
Apr 28, 202524.2824.4724.1224.4124.410.91%355,520
Apr 25, 202523.9724.2523.6324.1924.190.50%235,287
Apr 24, 202523.5824.1523.3524.0724.072.16%388,155
Apr 23, 202524.4024.6923.4623.5623.56-1.55%317,446
Apr 22, 202523.7124.0123.1723.9323.931.83%524,820
Apr 21, 202523.2123.5922.8423.5023.500.64%486,542
Apr 17, 202523.0823.6223.0823.3523.351.57%735,039
Apr 16, 202523.6223.7422.6422.9922.99-2.17%904,628