Amphastar Pharmaceuticals Inc (AMPH)
NASDAQ:AMPH
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Time Period
1Y
Events
Historical Prices
Rows:
Jun 18, 2026
19.51
19.66
18.70
18.81
18.81
-3.09%
1,327,567
2.27
Jun 17, 2026
19.94
20.26
19.15
19.41
19.41
-2.76%
1,008,517
1.74
Jun 16, 2026
19.91
20.41
19.62
19.96
19.96
+1.27%
724,204
1.26
Jun 15, 2026
20.11
20.29
19.59
19.71
19.71
-1.89%
528,512
0.91
Jun 12, 2026
19.90
20.55
19.90
20.09
20.09
-2.14%
377,788
0.65
Jun 11, 2026
20.15
20.65
20.10
20.53
20.53
+1.18%
463,562
0.79
Jun 10, 2026
20.21
20.77
19.99
20.29
20.29
+0.64%
405,165
0.68
Jun 09, 2026
19.53
20.27
19.53
20.16
20.16
+3.97%
506,256
0.85
Jun 08, 2026
19.75
19.85
19.34
19.39
19.39
-1.77%
558,989
0.94
Jun 05, 2026
18.86
20.14
18.85
19.74
19.74
+5.56%
750,284
1.26
Jun 04, 2026
18.28
18.90
18.28
18.70
18.70
+3.20%
459,231
0.77
Jun 03, 2026
18.26
18.36
17.73
18.12
18.12
-1.79%
509,338
0.85
Jun 02, 2026
18.36
18.67
18.10
18.45
18.45
+0.16%
810,643
1.35
Jun 01, 2026
18.63
19.01
18.22
18.42
18.42
-2.28%
569,685
0.95
May 29, 2026
19.28
19.46
18.55
18.85
18.85
-2.33%
849,067
1.40
May 28, 2026
19.04
19.55
19.02
19.30
19.30
+1.05%
621,218
0.99
May 27, 2026
19.31
19.34
18.50
19.10
19.10
+1.54%
501,594
0.79
May 26, 2026
18.45
19.12
18.45
18.81
18.81
+2.17%
670,766
1.06
May 22, 2026
18.25
18.44
17.93
18.41
18.41
+1.38%
485,197
0.77
May 21, 2026
18.07
18.37
17.76
18.16
18.16
+0.44%
1,656,978
2.71
May 20, 2026
17.81
18.19
17.70
18.08
18.08
+1.46%
868,756
1.43
May 19, 2026
17.28
17.91
17.00
17.82
17.82
+3.60%
725,146
1.21
May 18, 2026
16.70
17.31
16.65
17.20
17.20
+1.96%
866,027
1.47
May 15, 2026
17.27
17.53
16.76
16.87
16.87
-2.49%
679,289
1.16
May 14, 2026
17.81
18.08
17.26
17.30
17.30
-5.57%
739,074
1.29
May 13, 2026
17.50
18.57
17.43
18.32
18.32
+4.69%
971,189
1.73
May 12, 2026
18.41
18.58
17.26
17.50
17.50
-5.15%
1,219,603
2.22
May 11, 2026
19.13
19.41
18.33
18.45
18.45
-2.89%
1,359,559
2.56
May 08, 2026
18.58
19.53
18.28
19.00
19.00
-20.93%
1,983,804
3.94
May 07, 2026
24.01
24.35
23.87
24.03
24.03
+0.54%
373,521
0.74
May 06, 2026
23.50
24.15
23.50
23.90
23.90
+2.18%
392,763
0.78
May 05, 2026
22.85
23.46
22.75
23.39
23.39
+2.86%
366,945
0.73
May 04, 2026
21.82
23.22
21.72
22.74
22.74
+3.93%
487,139
0.98
May 01, 2026
21.98
22.26
21.64
21.88
21.88
-0.36%
353,190
0.71
Apr 30, 2026
21.63
22.36
21.57
21.96
21.96
+1.53%
407,242
0.81
Apr 29, 2026
21.50
21.86
21.48
21.63
21.63
-0.87%
268,688
0.54
Apr 28, 2026
21.71
22.04
21.56
21.82
21.82
+0.79%
281,225
0.56
Apr 27, 2026
21.47
22.06
21.46
21.65
21.65
+1.12%
329,613
0.66
Apr 24, 2026
21.05
21.60
20.77
21.41
21.41
+1.90%
429,703
0.87
Apr 23, 2026
20.99
21.23
20.77
21.01
21.01
+0.10%
302,590
0.61
Apr 22, 2026
21.40
21.59
20.77
20.99
20.99
-1.04%
410,802
0.83
Apr 21, 2026
22.38
22.66
21.10
21.21
21.21
-7.46%
684,196
1.41
Apr 20, 2026
22.67
23.26
22.54
22.92
22.92
+0.17%
542,349
1.13
Apr 17, 2026
22.18
23.00
21.98
22.88
22.88
+4.91%
537,832
1.13
Apr 16, 2026
21.67
22.02
21.41
21.81
21.81
+0.60%
361,313
0.77
Apr 15, 2026
21.38
21.76
21.19
21.68
21.68
+1.40%
389,357
0.83
Apr 14, 2026
21.36
21.70
21.12
21.38
21.38
+0.09%
343,451
0.72
Apr 13, 2026
20.17
21.48
20.17
21.36
21.36
+4.86%
577,873
1.22
Apr 10, 2026
20.98
21.10
20.14
20.37
20.37
-2.40%
354,467
0.75
Apr 09, 2026
20.32
21.19
20.32
20.87
20.87
+2.30%
519,316
1.10
Rows: