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Amphastar Pharmaceuticals, Inc. (AMPH)
NASDAQ: AMPH · Real-Time Price · USD
24.34
+0.23 (0.95%)
At close: May 12, 2025, 4:00 PM
24.34
0.00 (0.00%)
After-hours: May 12, 2025, 7:07 PM EDT

Amphastar Pharmaceuticals Stock Price History

Historical Data

DateOpenHighLowCloseAdj. CloseChangeVolume
May 12, 202524.0524.5723.6024.3424.340.95%563,773
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
Apr 15, 202524.2624.9223.3923.5023.50-3.77%779,954
Apr 14, 202524.5524.7723.9424.4224.421.08%523,512
Apr 11, 202523.7324.2223.3524.1624.162.72%482,794
Apr 10, 202524.9925.0122.7423.5223.52-6.78%840,599
Apr 9, 202523.3625.5123.3625.2325.236.23%1,011,359
Apr 8, 202525.4725.6623.7223.7523.75-5.00%972,673
Apr 7, 202525.7225.9524.7125.0025.00-6.05%1,290,496
Apr 4, 202526.3427.0226.1426.6126.61-2.31%699,446
Apr 3, 202527.6728.0626.8827.2427.24-2.01%605,671
Apr 2, 202527.9928.2927.0227.8027.80-1.73%717,778
Apr 1, 202528.8629.2728.1728.2928.29-2.41%785,073
Mar 31, 202528.2229.1828.0128.9928.991.97%547,881
Mar 28, 202528.4528.7128.2328.4328.43-0.25%386,852
Mar 27, 202528.3728.7528.2628.5028.500.46%457,511
Mar 26, 202528.4028.8328.0228.3728.37-0.07%437,895
Mar 25, 202528.5028.6627.8028.3928.39-0.25%713,226
Mar 24, 202528.5028.6528.0728.4628.460.60%538,425
Mar 21, 202527.6628.4427.6628.2928.291.36%1,478,691
Mar 20, 202527.7228.3827.6927.9127.910.18%406,990
Mar 19, 202527.4027.8727.0927.8627.861.83%471,499
Mar 18, 202527.5027.8127.2227.3627.36-1.19%602,473
Mar 17, 202526.6827.9826.6827.6927.693.86%648,301
Mar 14, 202526.2226.7626.1426.6626.661.60%500,925
Mar 13, 202526.3426.8625.8926.2426.24-0.15%467,567
Mar 12, 202527.3527.5526.2226.2826.28-3.84%700,518
Mar 11, 202528.4028.4027.2527.3327.33-3.80%515,760
Mar 10, 202528.6429.3428.2228.4128.41-1.39%536,987
Mar 7, 202528.1429.3728.0828.8128.811.73%544,259
Mar 6, 202527.8028.4927.2628.3228.320.93%721,266
Mar 5, 202527.5228.0627.0428.0628.061.59%632,357
Mar 4, 202527.2128.2427.0027.6227.620.36%803,214
Mar 3, 202528.5129.1026.9827.5227.52-3.20%999,415