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Amphastar Pharmaceuticals (AMPH)
NASDAQ:AMPH
US Market
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Amphastar Pharmaceuticals (AMPH) Historical Prices

435 Followers
Time Period
1Y
Events
Historical Prices
Historical Prices
Rows:
50
Date
Open
High
Low
Close
Adj Close
% Change
Volume
Relative Volume
Sep 04, 2026
23.47
23.74
23.07
23.18
23.18
-2.77%
650,129
1.39
Sep 03, 2026
23.88
23.92
23.04
23.84
23.84
+0.42%
432,319
0.91
Sep 02, 2026
23.05
23.83
23.03
23.74
23.74
+3.40%
456,779
0.97
Sep 01, 2026
22.59
23.05
22.59
22.96
22.96
+1.91%
349,055
0.73
Aug 31, 2026
21.86
22.65
21.52
22.53
22.53
+2.36%
274,025
0.57
Aug 28, 2026
21.88
22.15
21.69
22.01
22.01
+0.59%
224,528
0.46
Aug 27, 2026
21.69
21.97
21.63
21.88
21.88
-0.64%
259,787
0.52
Aug 26, 2026
21.86
22.44
21.72
22.02
22.02
+0.18%
395,610
0.79
Aug 25, 2026
21.50
22.07
21.41
21.98
21.98
+2.14%
283,773
0.56
Aug 24, 2026
21.60
21.81
21.26
21.52
21.52
-0.37%
210,263
0.41
Aug 21, 2026
21.64
22.20
21.44
21.60
21.60
-0.37%
376,558
0.73
Aug 20, 2026
21.38
21.76
21.24
21.68
21.68
-0.28%
338,696
0.63
Aug 19, 2026
21.64
21.99
21.15
21.74
21.74
+1.87%
410,771
0.76
Aug 18, 2026
21.11
21.59
21.08
21.34
21.34
+2.30%
411,802
0.75
Aug 17, 2026
20.90
21.23
20.77
20.86
20.86
-0.24%
533,504
0.96
Aug 14, 2026
20.02
21.07
19.89
20.91
20.91
+3.62%
305,681
0.55
Aug 13, 2026
20.18
20.27
19.84
20.18
20.18
+1.00%
526,116
0.93
Aug 12, 2026
20.16
20.22
19.61
19.98
19.98
-2.15%
343,843
0.60
Aug 11, 2026
20.00
20.57
20.00
20.42
20.42
+0.54%
570,493
0.98
Aug 10, 2026
20.74
20.90
19.55
20.31
20.31
-2.26%
645,749
1.09
Aug 07, 2026
22.48
22.65
20.40
20.78
20.78
+4.90%
1,300,994
2.15
Aug 06, 2026
20.22
20.25
19.60
19.81
19.81
-2.12%
527,333
0.87
Aug 05, 2026
20.06
20.28
19.88
20.24
20.24
+1.71%
351,618
0.58
Aug 04, 2026
20.11
20.38
19.86
19.90
19.90
-1.58%
481,647
0.80
Aug 03, 2026
20.11
20.46
19.70
20.22
20.22
+1.40%
413,179
0.69
Jul 31, 2026
20.35
20.41
19.67
19.94
19.94
-2.16%
367,629
0.61
Jul 30, 2026
20.31
20.53
19.95
20.38
20.38
-0.97%
355,683
0.59
Jul 29, 2026
20.24
20.70
19.99
20.58
20.58
+2.13%
321,673
0.53
Jul 28, 2026
19.38
20.27
19.38
20.15
20.15
+5.06%
390,836
0.65
Jul 27, 2026
18.97
19.31
18.96
19.18
19.18
+2.46%
285,917
0.48
Jul 24, 2026
18.90
19.12
18.50
18.72
18.72
-0.79%
445,684
0.74
Jul 23, 2026
19.08
19.34
18.73
18.87
18.87
-2.23%
650,430
1.09
Jul 22, 2026
19.71
19.95
19.20
19.30
19.30
-1.48%
409,242
0.69
Jul 21, 2026
19.42
19.89
19.42
19.59
19.59
-0.20%
620,355
1.04
Jul 20, 2026
19.78
19.91
19.52
19.63
19.63
-0.58%
437,416
0.73
Jul 17, 2026
19.84
20.35
19.63
19.75
19.75
-0.58%
338,457
0.56
Jul 16, 2026
19.40
20.14
19.40
19.86
19.86
+2.37%
416,861
0.69
Jul 15, 2026
18.87
19.50
18.83
19.40
19.40
+3.16%
356,089
0.59
Jul 14, 2026
19.10
19.39
18.41
18.81
18.81
-2.51%
334,748
0.56
Jul 13, 2026
19.00
19.68
18.95
19.29
19.29
+3.04%
384,479
0.64
Jul 10, 2026
18.97
19.15
18.61
18.72
18.72
-1.58%
311,051
0.51
Jul 09, 2026
18.86
19.13
18.61
19.02
19.02
+0.74%
446,628
0.74
Jul 08, 2026
19.96
19.96
18.52
18.88
18.88
-5.98%
438,664
0.72
Jul 07, 2026
20.06
20.28
19.74
20.08
20.08
+2.40%
449,984
0.74
Jul 06, 2026
19.48
20.01
19.08
19.61
19.61
-0.15%
313,781
0.52
Jul 03, 2026
20.35
20.35
19.63
19.64
19.64
0.00%
0
0.00
Jul 02, 2026
20.35
20.35
19.63
19.64
19.64
-2.29%
315,753
0.52
Jul 01, 2026
20.32
20.54
19.91
20.10
20.10
-0.40%
422,109
0.69
Jun 30, 2026
20.71
20.71
19.86
20.18
20.18
-2.56%
400,207
0.65
Jun 29, 2026
21.12
21.24
19.66
20.71
20.71
-4.91%
727,053
1.19
Rows:
50