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Amphastar Pharma (NQ: AMPH )

48.31 +2.22 (+4.82%)
Streaming Delayed Price Updated: 4:00 PM EST, Nov 8, 2024 Add to My Watchlist
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Historical Prices

Month:
Year:
Range:
Date Open High Low Close Volume Change (%)
May 29, 2015 14.93 15.40 14.88 15.34 676,307 +0.21(+1.39%)
May 28, 2015 15.09 15.14 14.94 15.13 232,610 +0.02(+0.13%)
May 27, 2015 14.82 15.12 14.67 15.11 245,169 +0.32(+2.16%)
May 26, 2015 14.71 14.93 14.61 14.79 180,225 -0.01(-0.07%)
May 22, 2015 14.62 14.80 14.80 14.80 86,900 +0.13(+0.89%)
May 21, 2015 14.83 15.00 14.61 14.67 92,494 -0.12(-0.81%)
May 20, 2015 14.91 14.91 14.76 14.79 114,806 -0.10(-0.67%)
May 19, 2015 15.00 15.12 14.77 14.89 162,232 -0.25(-1.65%)
May 18, 2015 15.19 15.40 15.02 15.14 316,356 -0.13(-0.85%)
May 15, 2015 15.38 15.48 14.65 15.27 308,202 -0.14(-0.91%)
May 14, 2015 15.00 15.45 14.83 15.41 228,759 +0.20(+1.31%)
May 13, 2015 14.50 15.24 14.50 15.21 291,700 +0.81(+5.63%)
May 12, 2015 14.50 14.71 14.36 14.40 79,603 -0.22(-1.50%)
May 11, 2015 13.95 14.71 13.95 14.62 638,369 +0.72(+5.18%)
May 08, 2015 13.86 14.21 13.71 13.90 150,138 +0.10(+0.72%)
May 07, 2015 13.80 14.04 13.65 13.80 71,266 +0.00(+0.00%)
May 06, 2015 14.12 14.15 13.55 13.80 146,672 -0.32(-2.27%)
May 05, 2015 14.57 14.65 13.99 14.12 134,963 -0.49(-3.35%)
May 04, 2015 14.55 14.78 14.40 14.61 126,897 +0.01(+0.07%)
May 01, 2015 14.58 14.75 14.40 14.60 141,408 +0.14(+0.97%)
Apr 30, 2015 14.95 15.00 14.45 14.46 240,944 -0.59(-3.92%)
Apr 29, 2015 14.90 15.07 14.80 15.05 179,169 +0.09(+0.60%)
Apr 28, 2015 15.07 15.15 14.70 14.96 130,223 -0.07(-0.47%)
Apr 27, 2015 15.33 15.35 14.80 15.03 157,552 -0.22(-1.44%)
Apr 24, 2015 15.29 15.45 15.17 15.25 162,298 -0.04(-0.26%)
Apr 23, 2015 15.03 15.30 14.94 15.29 63,512 +0.21(+1.39%)
Apr 22, 2015 15.18 15.28 15.02 15.08 258,213 -0.13(-0.85%)
Apr 21, 2015 15.10 15.25 14.95 15.21 94,032 +0.11(+0.73%)
Apr 20, 2015 15.15 15.22 14.84 15.10 126,070 -0.01(-0.07%)
Apr 17, 2015 15.22 15.25 14.91 15.11 104,836 -0.20(-1.31%)
Apr 16, 2015 15.20 15.39 14.83 15.31 152,939 +0.03(+0.20%)
Apr 15, 2015 15.30 15.46 15.12 15.28 73,410 +0.06(+0.39%)
Apr 14, 2015 15.48 15.48 15.09 15.22 50,287 -0.02(-0.13%)
Apr 13, 2015 15.37 15.53 15.16 15.24 69,885 -0.10(-0.65%)
Apr 10, 2015 15.02 15.38 14.67 15.34 168,040 +0.35(+2.33%)
Apr 09, 2015 15.11 16.28 14.85 14.99 593,031 -0.10(-0.66%)
Apr 08, 2015 14.87 15.21 14.87 15.09 142,287 +0.24(+1.62%)
Apr 07, 2015 15.09 15.24 14.83 14.85 113,149 -0.20(-1.33%)
Apr 06, 2015 14.91 15.18 14.80 15.05 110,180 +0.10(+0.67%)
Apr 02, 2015 14.98 14.95 14.95 14.95 78,200 -0.07(-0.47%)
Apr 01, 2015 14.88 15.21 14.52 15.02 212,199 +0.06(+0.40%)
Mar 31, 2015 14.96 15.26 14.72 14.96 109,382 +0.00(+0.00%)
Mar 30, 2015 15.47 15.49 14.93 14.96 149,626 -0.47(-3.05%)
Mar 27, 2015 15.01 15.48 14.95 15.43 205,276 +0.48(+3.21%)
Mar 26, 2015 14.57 15.22 14.40 14.95 295,363 +0.53(+3.68%)
Mar 25, 2015 15.50 15.53 14.21 14.42 620,572 -0.91(-5.94%)
Mar 24, 2015 15.20 15.50 14.98 15.33 579,944 -0.03(-0.20%)
Mar 23, 2015 14.64 15.38 14.57 15.36 231,554 +0.62(+4.21%)
Mar 20, 2015 14.43 14.93 14.36 14.74 707,096 +0.30(+2.08%)
Mar 19, 2015 14.76 15.13 14.41 14.44 355,285 -0.38(-2.56%)
Mar 18, 2015 15.00 15.02 14.55 14.82 307,396 -0.33(-2.18%)
Mar 17, 2015 15.30 15.39 14.90 15.15 216,365 -0.12(-0.79%)
Mar 16, 2015 15.47 15.79 15.12 15.27 165,754 -0.24(-1.55%)
Mar 13, 2015 15.50 15.75 15.03 15.51 334,770 +0.05(+0.32%)
Mar 12, 2015 14.97 15.47 14.87 15.46 259,363 +0.60(+4.04%)
Mar 11, 2015 14.95 15.00 14.72 14.86 227,377 -0.13(-0.87%)
Mar 10, 2015 14.91 15.02 14.40 14.99 367,533 +0.02(+0.13%)
Mar 09, 2015 14.68 15.00 14.51 14.97 225,662 +0.19(+1.29%)
Mar 06, 2015 14.52 14.85 14.44 14.78 122,707 +0.28(+1.93%)
Mar 05, 2015 14.58 14.70 14.56 14.50 144,694 +0.01(+0.07%)
Mar 04, 2015 14.01 14.56 13.91 14.49 298,693 +0.47(+3.35%)
Mar 03, 2015 14.08 14.16 13.85 14.02 97,242 -0.02(-0.14%)
Mar 02, 2015 13.93 14.12 13.91 14.04 157,741 +0.04(+0.29%)
Feb 27, 2015 13.79 14.35 13.66 14.00 240,134 +0.15(+1.08%)
Feb 26, 2015 13.63 13.85 13.44 13.85 93,796 +0.21(+1.54%)
Feb 25, 2015 13.70 13.72 13.33 13.64 79,210 +0.04(+0.29%)
Feb 24, 2015 13.55 13.74 13.38 13.60 125,200 +0.05(+0.37%)
Feb 23, 2015 12.80 13.95 12.75 13.55 461,649 +0.70(+5.45%)
Feb 20, 2015 12.80 12.88 12.70 12.85 87,892 -0.01(-0.08%)
Feb 19, 2015 12.81 12.95 12.72 12.86 128,096 +0.12(+0.94%)
Feb 18, 2015 12.80 12.84 12.56 12.74 70,457 -0.09(-0.70%)
Feb 17, 2015 12.70 12.95 12.65 12.83 113,693 +0.07(+0.55%)
Feb 13, 2015 12.70 12.76 12.76 12.76 83,500 +0.02(+0.16%)
Feb 12, 2015 12.91 12.94 12.51 12.74 97,132 -0.16(-1.24%)
Feb 11, 2015 12.91 13.05 12.71 12.90 77,069 -0.08(-0.62%)
Feb 10, 2015 13.04 13.19 12.86 12.98 147,965 -0.05(-0.38%)
Feb 09, 2015 12.63 13.30 12.63 13.03 243,739 +0.28(+2.20%)
Feb 06, 2015 12.87 12.98 12.56 12.75 193,725 -0.15(-1.16%)
Feb 05, 2015 12.88 12.97 12.78 12.90 138,445 +0.10(+0.78%)
Feb 04, 2015 12.26 12.85 12.18 12.80 324,849 +0.43(+3.48%)
Feb 03, 2015 12.51 12.62 12.10 12.37 135,641 -0.12(-0.96%)
Feb 02, 2015 12.11 12.54 12.11 12.49 194,127 +0.36(+2.97%)
Jan 30, 2015 12.42 12.60 12.04 12.13 206,817 -0.38(-3.04%)
Jan 29, 2015 12.22 12.52 12.07 12.51 36,602 +0.30(+2.46%)
Jan 28, 2015 12.44 12.46 12.08 12.21 65,629 -0.26(-2.09%)
Jan 27, 2015 12.21 12.65 12.21 12.47 149,444 +0.23(+1.88%)
Jan 26, 2015 11.87 12.59 11.74 12.24 172,144 +0.47(+3.99%)
Jan 23, 2015 11.71 11.82 11.60 11.77 148,422 +0.04(+0.34%)
Jan 22, 2015 11.79 11.81 11.51 11.73 122,937 +0.03(+0.26%)
Jan 21, 2015 11.65 11.81 11.60 11.70 130,827 -0.20(-1.68%)
Jan 20, 2015 11.97 11.97 11.51 11.90 73,812 -0.02(-0.17%)
Jan 16, 2015 11.26 12.00 11.12 11.92 164,966 +0.61(+5.39%)
Jan 15, 2015 11.96 11.99 11.28 11.31 163,553 -0.68(-5.67%)
Jan 14, 2015 11.74 12.02 11.72 11.99 79,106 +0.14(+1.18%)
Jan 13, 2015 12.05 12.10 11.65 11.85 132,147 -0.15(-1.25%)
Jan 12, 2015 12.03 12.23 11.50 12.00 198,019 +0.02(+0.17%)
Jan 09, 2015 12.32 12.32 11.88 11.98 175,450 -0.27(-2.20%)
Jan 08, 2015 12.85 12.85 12.16 12.25 265,591 -0.53(-4.15%)
Jan 07, 2015 11.87 12.88 11.85 12.78 474,494 +0.97(+8.21%)
Jan 06, 2015 11.91 12.06 11.42 11.81 194,681 -0.02(-0.17%)
Jan 05, 2015 11.75 12.18 11.75 11.83 226,362 -0.01(-0.08%)
Jan 02, 2015 11.67 11.87 11.50 11.84 127,095 +0.23(+1.98%)
Dec 31, 2014 11.58 11.61 11.61 11.61 100,500 +0.10(+0.87%)
Dec 30, 2014 11.64 11.75 11.43 11.51 66,037 -0.21(-1.79%)
Dec 29, 2014 11.84 11.86 11.54 11.72 61,151 -0.12(-1.01%)
Dec 26, 2014 11.75 11.98 11.38 11.84 127,286 +0.10(+0.85%)
Dec 24, 2014 11.75 11.74 11.74 11.74 73,500 -0.09(-0.76%)
Dec 23, 2014 12.18 12.21 11.80 11.83 110,915 -0.37(-3.03%)
Dec 22, 2014 12.09 12.40 11.84 12.20 199,584 +0.16(+1.33%)
Dec 19, 2014 11.86 12.15 11.61 12.04 1,255,448 +0.14(+1.18%)
Dec 18, 2014 12.00 12.00 11.66 11.90 191,365 -0.04(-0.34%)
Dec 17, 2014 11.25 11.97 11.25 11.94 149,648 +0.66(+5.85%)
Dec 16, 2014 10.89 11.65 10.87 11.28 143,687 +0.25(+2.27%)
Dec 15, 2014 11.82 11.86 10.75 11.03 269,046 -0.70(-5.97%)
Dec 12, 2014 11.59 12.08 11.59 11.73 158,590 +0.02(+0.17%)
Dec 11, 2014 11.90 11.99 11.63 11.71 87,916 -0.20(-1.68%)
Dec 10, 2014 11.98 12.06 11.77 11.91 123,348 -0.12(-1.00%)
Dec 09, 2014 12.21 12.32 11.98 12.03 326,081 -0.36(-2.91%)
Dec 08, 2014 12.15 12.46 11.77 12.39 147,531 +0.26(+2.14%)
Dec 05, 2014 11.77 12.20 11.52 12.13 120,936 +0.29(+2.45%)
Dec 04, 2014 11.37 11.99 11.33 11.84 116,974 +0.41(+3.59%)
Dec 03, 2014 11.00 11.57 10.93 11.43 130,811 +0.43(+3.91%)
Dec 02, 2014 10.83 11.69 10.80 11.00 330,621 +0.12(+1.10%)
Dec 01, 2014 10.50 10.90 10.39 10.88 89,495 +0.45(+4.31%)
Nov 28, 2014 10.67 10.74 10.43 10.43 37,645 -0.18(-1.70%)
Nov 26, 2014 10.60 10.61 10.61 10.61 80,900 -0.01(-0.09%)
Nov 25, 2014 10.58 10.72 10.46 10.62 72,859 +0.02(+0.19%)
Nov 24, 2014 10.55 10.77 10.51 10.60 24,383 +0.04(+0.38%)
Nov 21, 2014 10.58 10.71 10.40 10.56 64,186 +0.08(+0.76%)
Nov 20, 2014 10.17 10.48 10.13 10.48 52,136 +0.27(+2.64%)
Nov 19, 2014 10.28 10.49 10.14 10.21 58,577 -0.16(-1.54%)
Nov 18, 2014 10.31 10.40 9.880 10.37 150,905 +0.05(+0.48%)
Nov 17, 2014 10.28 10.49 10.22 10.32 123,497 +0.07(+0.68%)
Nov 14, 2014 10.81 10.81 10.17 10.25 62,351 -0.38(-3.57%)
Nov 13, 2014 11.77 11.77 10.36 10.63 293,022 +0.58(+5.77%)
Nov 12, 2014 9.900 10.19 9.830 10.05 120,464 +0.12(+1.21%)
Nov 11, 2014 10.00 10.03 9.759 9.930 216,841 -0.10(-1.00%)
Nov 10, 2014 10.11 10.24 9.970 10.03 76,094 -0.06(-0.59%)
Nov 07, 2014 10.12 10.27 9.900 10.09 30,073 -0.08(-0.79%)
Nov 06, 2014 9.920 10.40 9.920 10.17 51,337 +0.22(+2.21%)
Nov 05, 2014 9.950 10.26 9.800 9.950 86,508 -0.05(-0.50%)
Nov 04, 2014 10.00 10.18 9.860 10.00 27,228 +0.00(+0.00%)
Nov 03, 2014 10.20 10.44 9.980 10.00 58,697 -0.14(-1.38%)
Oct 31, 2014 10.08 10.28 9.920 10.14 63,587 +0.20(+2.01%)
Oct 30, 2014 9.970 10.20 9.860 9.940 38,104 -0.02(-0.20%)
Oct 29, 2014 10.18 10.18 9.880 9.960 113,381 -0.25(-2.45%)
Oct 28, 2014 10.15 10.54 10.00 10.21 96,243 +0.07(+0.69%)
Oct 27, 2014 10.06 10.26 10.07 10.14 105,517 +0.07(+0.70%)
Oct 24, 2014 10.11 10.18 10.00 10.07 42,125 -0.02(-0.20%)
Oct 23, 2014 10.22 10.22 10.00 10.09 53,961 -0.08(-0.79%)
Oct 22, 2014 10.27 10.28 10.00 10.17 65,409 -0.05(-0.49%)
Oct 21, 2014 10.37 10.59 10.12 10.22 55,042 -0.09(-0.87%)
Oct 20, 2014 10.40 10.86 10.20 10.31 74,943 -0.08(-0.77%)
Oct 17, 2014 11.00 11.00 10.34 10.39 80,820 -0.58(-5.29%)
Oct 16, 2014 10.32 11.11 10.32 10.97 74,475 +0.48(+4.58%)
Oct 15, 2014 10.87 10.92 10.13 10.49 136,727 -0.50(-4.55%)
Oct 14, 2014 11.17 11.17 10.81 10.99 64,272 -0.04(-0.36%)
Oct 13, 2014 10.92 11.10 10.59 11.03 60,013 +0.09(+0.82%)
Oct 10, 2014 10.97 11.22 10.77 10.94 58,475 -0.08(-0.73%)
Oct 09, 2014 11.21 11.22 10.87 11.02 89,444 +0.02(+0.18%)
Oct 08, 2014 10.95 11.10 10.61 11.00 123,576 +0.09(+0.82%)
Oct 07, 2014 11.29 11.35 10.90 10.91 72,822 -0.44(-3.88%)
Oct 06, 2014 11.40 11.63 11.15 11.35 56,399 -0.06(-0.53%)
Oct 03, 2014 11.28 11.63 11.18 11.41 74,279 +0.26(+2.33%)
Oct 02, 2014 11.18 11.42 11.02 11.15 69,417 +0.03(+0.27%)
Oct 01, 2014 11.65 11.67 11.05 11.12 156,829 -0.53(-4.55%)
Sep 30, 2014 12.00 12.00 11.55 11.65 1,106,723 -0.31(-2.59%)
Sep 29, 2014 11.85 12.02 11.48 11.96 139,871 +0.13(+1.10%)
Sep 26, 2014 12.08 12.08 11.68 11.83 102,865 -0.17(-1.42%)
Sep 25, 2014 11.74 12.18 11.52 12.00 106,897 +0.00(+0.00%)
Sep 24, 2014 11.46 12.05 11.31 12.00 105,112 +0.51(+4.44%)
Sep 23, 2014 10.95 11.65 10.86 11.49 66,642 +0.54(+4.93%)
Sep 22, 2014 11.32 11.43 10.51 10.95 106,104 -0.33(-2.93%)
Sep 19, 2014 12.14 12.14 11.00 11.28 291,050 -0.68(-5.69%)
Sep 18, 2014 12.20 12.20 11.82 11.96 51,362 -0.03(-0.25%)
Sep 17, 2014 12.20 12.29 11.99 11.99 71,271 -0.19(-1.56%)
Sep 16, 2014 12.31 12.43 12.00 12.18 182,281 -0.01(-0.08%)
Sep 15, 2014 12.00 12.50 11.95 12.19 110,219 +0.28(+2.35%)
Sep 12, 2014 12.00 12.25 11.87 11.91 75,353 -0.23(-1.89%)
Sep 11, 2014 12.49 12.49 12.00 12.14 79,596 -0.09(-0.74%)
Sep 10, 2014 11.86 12.52 11.86 12.23 198,676 +0.26(+2.17%)
Sep 09, 2014 11.81 12.10 11.81 11.97 50,760 +0.06(+0.50%)
Sep 08, 2014 11.94 12.10 11.80 11.91 85,638 -0.01(-0.08%)
Sep 05, 2014 11.81 12.00 11.57 11.92 151,962 +0.06(+0.51%)
Sep 04, 2014 12.00 12.00 11.81 11.86 75,949 -0.13(-1.08%)
Sep 03, 2014 12.00 12.00 11.82 11.99 57,226 -0.01(-0.08%)
Sep 02, 2014 12.11 12.25 11.81 12.00 115,374 -0.09(-0.74%)
Aug 29, 2014 11.55 12.09 12.09 12.09 155,000 +0.51(+4.40%)
Aug 28, 2014 11.41 11.72 11.39 11.58 50,637 +0.22(+1.94%)
Aug 27, 2014 11.50 11.90 11.33 11.36 107,785 -0.14(-1.22%)
Aug 26, 2014 11.56 12.04 11.52 11.50 154,749 +0.04(+0.35%)
Aug 25, 2014 10.15 11.69 10.06 11.46 183,506 +1.34(+13.24%)
Aug 22, 2014 10.00 10.36 10.00 10.12 64,349 +0.05(+0.50%)
Aug 21, 2014 10.03 10.15 9.844 10.07 41,518 -0.01(-0.10%)
Aug 20, 2014 10.05 10.30 9.800 10.08 64,044 +0.07(+0.70%)
Aug 19, 2014 9.960 10.05 9.760 10.01 101,211 -0.01(-0.10%)
Aug 18, 2014 10.14 10.16 9.950 10.02 42,739 -0.13(-1.28%)
Aug 15, 2014 10.37 10.40 10.09 10.15 158,962 +0.02(+0.20%)
Aug 14, 2014 10.15 10.24 10.04 10.13 47,892 -0.02(-0.20%)
Aug 13, 2014 9.800 10.15 9.600 10.15 197,810 -0.05(-0.49%)
Aug 12, 2014 10.11 10.30 9.800 10.20 92,726 +0.20(+2.00%)
Aug 11, 2014 10.03 10.54 9.990 10.00 191,139 +0.00(+0.00%)
Aug 08, 2014 9.450 10.40 9.450 10.00 194,824 +0.55(+5.82%)
Aug 07, 2014 9.680 9.680 9.049 9.450 165,280 +0.01(+0.11%)
Aug 06, 2014 9.370 9.750 9.020 9.440 210,897 +0.69(+7.89%)
Aug 05, 2014 8.750 8.927 8.710 8.750 38,595 -0.08(-0.91%)
Aug 04, 2014 8.970 9.148 8.770 8.830 24,405 -0.01(-0.11%)
Aug 01, 2014 8.840 9.390 8.760 8.840 38,302 -0.04(-0.45%)
Jul 31, 2014 8.920 9.200 8.760 8.880 30,175 -0.16(-1.77%)
Jul 30, 2014 9.110 9.500 8.920 9.040 83,609 -0.08(-0.88%)
Jul 29, 2014 9.040 9.260 8.920 9.120 82,988 +0.15(+1.67%)
Jul 28, 2014 9.050 9.086 8.900 8.970 46,172 -0.01(-0.11%)
Jul 25, 2014 9.050 9.230 8.920 8.980 131,859 -0.24(-2.60%)
Jul 24, 2014 9.200 9.940 9.050 9.220 116,461 +0.08(+0.88%)
Jul 23, 2014 9.350 9.620 9.050 9.140 112,137 -0.36(-3.79%)
Jul 22, 2014 9.110 10.10 9.110 9.500 264,099 +0.15(+1.60%)
Jul 21, 2014 9.700 9.745 9.020 9.350 105,663 -0.20(-2.09%)
Jul 18, 2014 9.500 9.740 9.250 9.550 95,656 -0.03(-0.31%)
Jul 17, 2014 9.450 9.920 9.220 9.580 31,567 -0.07(-0.73%)
Jul 16, 2014 9.520 9.950 9.500 9.650 216,110 +0.16(+1.69%)
Jul 15, 2014 9.680 9.950 9.380 9.490 170,108 -0.34(-3.46%)
Jul 14, 2014 9.240 10.00 9.240 9.830 75,881 +0.54(+5.81%)
Jul 11, 2014 8.600 9.330 8.600 9.290 79,666 +0.60(+6.90%)
Jul 10, 2014 8.640 9.040 8.500 8.690 88,287 -0.36(-3.98%)
Jul 09, 2014 9.000 9.150 8.720 9.050 25,119 +0.05(+0.56%)
Jul 08, 2014 8.600 9.020 8.450 9.000 96,134 +0.25(+2.86%)
Jul 07, 2014 9.100 9.100 8.450 8.750 102,852 -0.32(-3.53%)
Jul 03, 2014 8.980 9.070 9.070 9.070 29,300 -0.07(-0.77%)
Jul 02, 2014 9.750 9.770 8.320 9.140 618,215 -0.61(-6.26%)
Jul 01, 2014 9.900 10.39 9.490 9.750 204,757 -0.26(-2.60%)
Jun 30, 2014 10.00 10.96 9.750 10.01 183,753 -0.49(-4.67%)
Jun 27, 2014 10.25 10.68 9.960 10.50 395,551 +0.49(+4.90%)
Jun 26, 2014 9.000 11.07 8.800 10.01 1,412,810 +1.26(+14.40%)
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