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Amphastar Pharma (NQ: AMPH )

41.11 +0.28 (+0.69%)
Streaming Delayed Price Updated: 4:00 PM EDT, Apr 26, 2024 Add to My Watchlist
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Historical Prices

Month:
Year:
Range:
Date Open High Low Close Volume Change (%)
Apr 26, 2024 40.77 41.42 40.50 41.11 263,601 +0.28(+0.69%)
Apr 25, 2024 40.85 41.07 40.39 40.83 236,143 -0.17(-0.41%)
Apr 24, 2024 40.70 41.20 40.43 41.00 218,270 +0.09(+0.22%)
Apr 23, 2024 40.29 41.08 40.29 40.91 210,158 +0.74(+1.84%)
Apr 22, 2024 40.31 40.75 39.93 40.17 345,088 +0.16(+0.40%)
Apr 19, 2024 38.52 40.06 38.48 40.01 410,104 +1.36(+3.52%)
Apr 18, 2024 40.02 40.02 38.43 38.65 329,460 -1.40(-3.50%)
Apr 17, 2024 41.23 41.65 39.82 40.05 494,599 -0.85(-2.08%)
Apr 16, 2024 40.58 41.43 40.41 40.90 305,212 +0.12(+0.29%)
Apr 15, 2024 39.80 40.90 39.31 40.78 403,717 +1.16(+2.93%)
Apr 12, 2024 40.01 40.17 38.95 39.62 392,144 -0.53(-1.32%)
Apr 11, 2024 40.35 40.49 39.81 40.15 375,519 +0.10(+0.25%)
Apr 10, 2024 40.08 40.49 39.64 40.05 419,814 -0.85(-2.08%)
Apr 09, 2024 41.17 41.23 40.68 40.90 279,728 -0.15(-0.37%)
Apr 08, 2024 41.96 42.16 41.01 41.05 230,925 -0.74(-1.77%)
Apr 05, 2024 41.34 42.01 41.01 41.79 369,048 +0.27(+0.65%)
Apr 04, 2024 42.40 42.47 41.29 41.52 314,992 -0.42(-1.00%)
Apr 03, 2024 42.20 42.40 41.57 41.94 280,304 -0.38(-0.90%)
Apr 02, 2024 43.11 43.15 42.07 42.32 421,282 -1.12(-2.58%)
Apr 01, 2024 43.97 43.97 43.11 43.44 312,339 -0.47(-1.07%)
Mar 28, 2024 43.76 44.83 43.76 43.91 453,253 +0.39(+0.90%)
Mar 27, 2024 43.54 43.87 43.05 43.52 419,338 +0.31(+0.72%)
Mar 26, 2024 43.98 43.98 42.84 43.21 365,308 -0.42(-0.96%)
Mar 25, 2024 44.04 44.32 43.61 43.63 285,586 -0.07(-0.16%)
Mar 22, 2024 44.45 44.47 43.45 43.70 310,944 -0.83(-1.86%)
Mar 21, 2024 44.28 44.62 43.70 44.53 315,274 +0.50(+1.14%)
Mar 20, 2024 44.61 44.89 44.00 44.03 316,846 -0.54(-1.21%)
Mar 19, 2024 42.78 44.68 42.75 44.57 411,632 +1.72(+4.01%)
Mar 18, 2024 43.05 43.40 42.27 42.85 322,993 -0.20(-0.46%)
Mar 15, 2024 43.16 43.76 42.80 43.05 751,136 -0.14(-0.32%)
Mar 14, 2024 43.37 43.52 42.95 43.19 447,240 -0.36(-0.83%)
Mar 13, 2024 44.01 44.32 43.26 43.55 434,060 -0.60(-1.36%)
Mar 12, 2024 43.82 44.23 43.17 44.15 524,307 +0.34(+0.78%)
Mar 11, 2024 45.46 45.58 43.75 43.81 569,683 -1.86(-4.07%)
Mar 08, 2024 46.53 47.05 45.42 45.67 427,528 -1.09(-2.33%)
Mar 07, 2024 45.08 47.07 45.00 46.76 459,537 +0.45(+0.97%)
Mar 06, 2024 48.00 48.00 45.77 46.31 510,911 -1.02(-2.16%)
Mar 05, 2024 47.36 47.80 46.44 47.33 517,509 +0.65(+1.39%)
Mar 04, 2024 46.47 46.96 45.48 46.68 658,375 +0.46(+1.00%)
Mar 01, 2024 47.08 47.08 45.17 46.22 1,132,652 -0.35(-0.75%)
Feb 29, 2024 49.81 50.35 44.58 46.57 1,798,099 -8.17(-14.93%)
Feb 28, 2024 55.95 55.95 53.96 54.74 376,709 -0.70(-1.26%)
Feb 27, 2024 55.85 56.38 55.06 55.44 501,891 +0.35(+0.64%)
Feb 26, 2024 53.41 55.69 53.39 55.09 368,100 +1.68(+3.15%)
Feb 23, 2024 52.30 53.55 51.91 53.41 289,060 +1.50(+2.89%)
Feb 22, 2024 51.34 52.38 51.26 51.91 431,321 +0.66(+1.29%)
Feb 21, 2024 52.16 52.82 51.08 51.25 469,000 -1.20(-2.29%)
Feb 20, 2024 53.59 53.59 51.70 52.45 422,890 -1.61(-2.98%)
Feb 16, 2024 55.40 55.58 53.67 54.06 348,757 -1.45(-2.61%)
Feb 15, 2024 55.00 55.61 54.04 55.51 376,925 +0.58(+1.06%)
Feb 14, 2024 55.24 55.88 54.80 54.93 241,991 +0.18(+0.33%)
Feb 13, 2024 54.86 55.85 54.27 54.75 358,320 -1.27(-2.27%)
Feb 12, 2024 55.91 56.45 55.38 56.02 325,128 +0.41(+0.74%)
Feb 09, 2024 55.07 56.12 54.70 55.61 354,517 +1.01(+1.85%)
Feb 08, 2024 53.09 54.72 52.79 54.60 376,970 +1.64(+3.10%)
Feb 07, 2024 52.40 53.45 52.13 52.96 319,487 +0.47(+0.90%)
Feb 06, 2024 52.24 52.72 51.26 52.49 590,446 +0.14(+0.27%)
Feb 05, 2024 52.47 53.03 52.06 52.35 361,562 -0.45(-0.85%)
Feb 02, 2024 53.10 53.41 52.25 52.80 402,359 -0.69(-1.29%)
Feb 01, 2024 53.56 53.68 52.01 53.49 392,147 +0.13(+0.24%)
Jan 31, 2024 55.14 55.28 53.32 53.36 367,093 -1.58(-2.88%)
Jan 30, 2024 55.40 55.51 54.16 54.94 384,078 -0.45(-0.81%)
Jan 29, 2024 54.49 55.55 53.82 55.39 1,156,505 +1.51(+2.80%)
Jan 26, 2024 54.09 54.60 53.40 53.88 538,289 +0.64(+1.20%)
Jan 25, 2024 55.59 55.86 52.93 53.24 361,036 -1.98(-3.59%)
Jan 24, 2024 56.02 56.13 55.00 55.22 210,840 -0.23(-0.41%)
Jan 23, 2024 56.19 56.77 55.25 55.45 201,949 -0.47(-0.84%)
Jan 22, 2024 55.52 56.57 55.23 55.92 289,724 +0.88(+1.60%)
Jan 19, 2024 56.70 56.88 54.11 55.04 438,636 -1.39(-2.46%)
Jan 18, 2024 56.44 56.45 55.30 56.43 308,071 +0.29(+0.52%)
Jan 17, 2024 55.02 56.37 54.91 56.14 345,526 +0.64(+1.15%)
Jan 16, 2024 54.00 55.77 53.81 55.50 417,936 +1.29(+2.38%)
Jan 12, 2024 54.28 54.80 53.53 54.21 605,982 +0.18(+0.33%)
Jan 11, 2024 54.60 54.64 52.33 54.03 719,930 -0.79(-1.44%)
Jan 10, 2024 56.97 57.25 53.58 54.82 1,212,100 -2.00(-3.52%)
Jan 09, 2024 58.64 58.64 56.07 56.82 624,910 -2.63(-4.42%)
Jan 08, 2024 63.31 63.96 56.42 59.45 964,979 -3.29(-5.24%)
Jan 05, 2024 63.45 65.92 62.45 62.74 613,978 -0.71(-1.12%)
Jan 04, 2024 61.66 64.42 61.50 63.45 541,775 +2.41(+3.95%)
Jan 03, 2024 62.26 63.15 60.86 61.04 524,722 -1.25(-2.01%)
Jan 02, 2024 61.78 62.41 60.08 62.29 428,654 +0.44(+0.71%)
Dec 29, 2023 62.20 62.87 60.85 61.85 448,882 -0.32(-0.51%)
Dec 28, 2023 63.10 63.15 62.10 62.17 342,680 -0.76(-1.21%)
Dec 27, 2023 62.96 63.67 61.62 62.93 306,366 +0.42(+0.67%)
Dec 26, 2023 61.00 63.50 61.00 62.51 647,744 +1.59(+2.61%)
Dec 22, 2023 60.42 61.47 59.94 60.92 314,490 +0.96(+1.60%)
Dec 21, 2023 59.35 59.97 58.62 59.96 203,216 +1.43(+2.44%)
Dec 20, 2023 60.54 60.72 58.53 58.53 305,911 -1.93(-3.19%)
Dec 19, 2023 58.25 60.49 58.24 60.46 377,195 +2.40(+4.13%)
Dec 18, 2023 57.33 58.10 56.68 58.06 341,023 +1.46(+2.58%)
Dec 15, 2023 58.39 58.70 54.06 56.60 926,185 -1.56(-2.68%)
Dec 14, 2023 62.50 62.72 57.24 58.16 801,250 -3.57(-5.78%)
Dec 13, 2023 59.14 62.15 58.64 61.73 870,415 +3.09(+5.27%)
Dec 12, 2023 57.10 58.79 56.20 58.64 439,645 +1.56(+2.73%)
Dec 11, 2023 57.05 58.31 56.60 57.08 285,485 +0.31(+0.55%)
Dec 08, 2023 57.09 57.24 56.10 56.77 238,592 -0.32(-0.56%)
Dec 07, 2023 57.94 58.36 56.06 57.09 311,443 -1.16(-1.99%)
Dec 06, 2023 58.25 59.94 58.13 58.25 395,764 +0.03(+0.05%)
Dec 05, 2023 59.81 59.83 57.45 58.22 485,937 -1.70(-2.84%)
Dec 04, 2023 58.02 61.20 58.00 59.92 757,372 +2.00(+3.45%)
Dec 01, 2023 56.89 58.58 56.12 57.92 457,089 +1.60(+2.84%)
Nov 30, 2023 56.11 57.92 56.00 56.32 405,384 +0.58(+1.04%)
Nov 29, 2023 54.81 56.27 54.42 55.74 396,267 +1.33(+2.44%)
Nov 28, 2023 56.53 56.61 54.38 54.41 282,621 -2.18(-3.85%)
Nov 27, 2023 56.94 57.79 55.64 56.59 654,057 -0.28(-0.49%)
Nov 24, 2023 56.07 57.20 55.52 56.87 99,486 +0.82(+1.46%)
Nov 22, 2023 57.23 57.63 55.78 56.05 282,024 -0.60(-1.06%)
Nov 21, 2023 56.89 58.35 56.49 56.65 384,897 +0.06(+0.11%)
Nov 20, 2023 56.35 56.79 55.14 56.59 371,180 +0.74(+1.32%)
Nov 17, 2023 56.09 56.85 55.51 55.85 444,581 -0.32(-0.57%)
Nov 16, 2023 57.52 57.65 55.40 56.17 368,543 -1.35(-2.35%)
Nov 15, 2023 56.81 58.13 55.34 57.52 524,320 +1.21(+2.15%)
Nov 14, 2023 54.53 56.92 54.16 56.31 1,056,380 +2.76(+5.15%)
Nov 13, 2023 52.87 54.00 51.09 53.55 518,513 +0.99(+1.88%)
Nov 10, 2023 52.00 53.12 50.48 52.56 762,916 +0.15(+0.29%)
Nov 09, 2023 48.01 52.73 47.13 52.41 1,016,962 +6.99(+15.39%)
Nov 08, 2023 46.35 46.66 44.42 45.42 421,725 -0.59(-1.28%)
Nov 07, 2023 46.89 47.34 45.99 46.01 224,856 -0.82(-1.75%)
Nov 06, 2023 46.89 47.79 46.56 46.83 254,004 +0.24(+0.52%)
Nov 03, 2023 46.06 47.09 46.06 46.59 415,156 +1.14(+2.51%)
Nov 02, 2023 45.75 46.08 45.06 45.45 278,811 +0.01(+0.02%)
Nov 01, 2023 45.21 45.75 44.97 45.44 303,141 +0.17(+0.38%)
Oct 31, 2023 45.45 45.81 45.22 45.27 260,584 +0.09(+0.20%)
Oct 30, 2023 45.30 45.50 44.53 45.18 222,200 +0.54(+1.21%)
Oct 27, 2023 44.80 45.50 44.52 44.64 316,253 -0.30(-0.67%)
Oct 26, 2023 45.14 45.56 44.55 44.94 285,728 -0.12(-0.27%)
Oct 25, 2023 45.28 45.50 44.59 45.06 322,011 -0.29(-0.64%)
Oct 24, 2023 45.21 46.08 45.02 45.35 393,597 +0.63(+1.41%)
Oct 23, 2023 44.49 45.40 44.23 44.72 263,645 +0.23(+0.52%)
Oct 20, 2023 44.97 45.39 44.34 44.49 298,964 -0.34(-0.76%)
Oct 19, 2023 47.05 47.70 44.75 44.83 249,718 -2.37(-5.02%)
Oct 18, 2023 47.59 48.16 46.80 47.20 197,086 -0.84(-1.75%)
Oct 17, 2023 46.29 48.43 46.29 48.04 380,961 +1.57(+3.38%)
Oct 16, 2023 45.86 46.50 45.89 46.47 249,370 +0.71(+1.55%)
Oct 13, 2023 46.68 46.68 45.20 45.76 647,412 -0.40(-0.87%)
Oct 12, 2023 48.50 48.50 46.03 46.16 254,206 -2.30(-4.75%)
Oct 11, 2023 48.10 48.47 47.55 48.46 196,541 +0.50(+1.04%)
Oct 10, 2023 47.78 48.50 47.61 47.96 381,806 +0.41(+0.86%)
Oct 09, 2023 46.80 48.00 46.56 47.55 243,693 +0.36(+0.76%)
Oct 06, 2023 46.36 47.55 46.05 47.19 281,541 +0.62(+1.33%)
Oct 05, 2023 45.93 46.87 45.83 46.57 336,706 +0.68(+1.48%)
Oct 04, 2023 44.89 46.21 44.08 45.89 357,011 +1.02(+2.27%)
Oct 03, 2023 45.42 45.74 43.78 44.87 414,617 -0.87(-1.90%)
Oct 02, 2023 46.10 46.36 45.27 45.74 355,736 -0.25(-0.54%)
Sep 29, 2023 47.53 47.70 45.67 45.99 524,136 -1.31(-2.77%)
Sep 28, 2023 46.61 48.06 46.56 47.30 387,280 +0.80(+1.72%)
Sep 27, 2023 45.80 46.53 45.70 46.50 377,317 +0.99(+2.18%)
Sep 26, 2023 45.74 46.35 45.15 45.51 477,768 -0.37(-0.81%)
Sep 25, 2023 45.48 45.98 45.65 45.88 158,945 +0.37(+0.81%)
Sep 22, 2023 46.12 46.13 45.27 45.51 160,841 -0.15(-0.33%)
Sep 21, 2023 45.71 46.11 44.86 45.66 514,613 -0.54(-1.17%)
Sep 20, 2023 46.44 47.54 46.14 46.20 319,859 +0.16(+0.35%)
Sep 19, 2023 46.25 46.40 45.46 46.04 193,783 -0.19(-0.41%)
Sep 18, 2023 45.88 47.00 45.88 46.23 258,916 +0.46(+1.01%)
Sep 15, 2023 47.00 47.00 45.10 45.77 855,151 -1.30(-2.76%)
Sep 14, 2023 46.68 47.22 46.14 47.07 489,571 +0.77(+1.66%)
Sep 13, 2023 46.70 48.40 46.16 46.30 4,332,309 -0.34(-0.73%)
Sep 12, 2023 47.47 48.12 45.37 46.64 2,086,021 -4.73(-9.21%)
Sep 11, 2023 50.21 51.94 49.87 51.37 289,741 +1.36(+2.72%)
Sep 08, 2023 51.36 51.68 49.80 50.01 254,206 -1.23(-2.40%)
Sep 07, 2023 52.20 52.50 51.16 51.24 250,317 -0.79(-1.52%)
Sep 06, 2023 51.84 52.33 51.20 52.03 278,211 +0.52(+1.01%)
Sep 05, 2023 54.40 54.40 50.70 51.51 474,359 -3.02(-5.54%)
Sep 01, 2023 53.71 55.44 53.71 54.53 214,708 +1.22(+2.29%)
Aug 31, 2023 54.36 54.55 53.29 53.31 227,663 -1.05(-1.93%)
Aug 30, 2023 53.40 55.44 53.35 54.36 219,117 +0.73(+1.36%)
Aug 29, 2023 53.23 53.92 52.79 53.63 246,012 +0.68(+1.28%)
Aug 28, 2023 53.19 53.81 52.82 52.95 208,021 -0.05(-0.09%)
Aug 25, 2023 53.39 54.10 52.90 53.00 222,716 -0.54(-1.01%)
Aug 24, 2023 54.44 54.84 53.46 53.54 235,034 -0.97(-1.78%)
Aug 23, 2023 54.00 54.93 53.11 54.51 282,850 +1.02(+1.91%)
Aug 22, 2023 53.63 53.85 51.93 53.49 282,329 +0.01(+0.02%)
Aug 21, 2023 52.76 53.93 52.71 53.48 207,652 +0.61(+1.15%)
Aug 18, 2023 52.59 53.49 51.92 52.87 438,685 -0.14(-0.26%)
Aug 17, 2023 55.64 56.05 52.92 53.01 432,191 -3.04(-5.42%)
Aug 16, 2023 57.26 59.52 55.98 56.05 413,458 -1.20(-2.10%)
Aug 15, 2023 54.34 57.64 54.14 57.25 382,904 +3.18(+5.88%)
Aug 14, 2023 54.64 54.82 53.45 54.07 372,589 -0.62(-1.13%)
Aug 11, 2023 53.41 55.41 51.43 54.69 498,986 +1.29(+2.42%)
Aug 10, 2023 62.29 62.47 53.26 53.40 1,184,514 -8.81(-14.16%)
Aug 09, 2023 64.70 67.66 61.32 62.21 902,834 -2.79(-4.29%)
Aug 08, 2023 63.31 65.53 63.00 65.00 437,892 +1.92(+3.04%)
Aug 07, 2023 62.71 63.28 62.05 63.08 315,648 +0.27(+0.43%)
Aug 04, 2023 62.95 63.64 62.52 62.81 203,015 -0.27(-0.43%)
Aug 03, 2023 61.75 63.39 61.62 63.08 221,393 +1.39(+2.25%)
Aug 02, 2023 60.29 62.96 60.29 61.69 258,201 +1.05(+1.73%)
Aug 01, 2023 60.98 60.98 60.16 60.64 252,704 -0.05(-0.08%)
Jul 31, 2023 61.00 61.01 60.08 60.69 240,536 -0.14(-0.23%)
Jul 28, 2023 61.31 61.44 60.64 60.83 265,345 +0.22(+0.36%)
Jul 27, 2023 61.99 61.99 60.34 60.61 293,903 -0.77(-1.25%)
Jul 26, 2023 62.11 62.13 61.12 61.38 176,470 -0.27(-0.44%)
Jul 25, 2023 61.61 62.34 61.07 61.65 329,357 +0.97(+1.60%)
Jul 24, 2023 61.77 62.46 60.37 60.68 298,606 -0.94(-1.53%)
Jul 21, 2023 63.34 63.60 61.08 61.62 589,910 -1.63(-2.58%)
Jul 20, 2023 62.72 63.41 61.65 63.25 424,720 +0.92(+1.48%)
Jul 19, 2023 61.59 63.72 61.59 62.33 611,593 +1.26(+2.06%)
Jul 18, 2023 57.80 63.17 57.71 61.07 838,588 +4.38(+7.73%)
Jul 17, 2023 55.78 56.95 55.58 56.69 274,550 +0.82(+1.47%)
Jul 14, 2023 55.83 57.26 55.52 55.87 299,031 +0.59(+1.07%)
Jul 13, 2023 55.30 56.00 54.73 55.28 452,462 +0.39(+0.71%)
Jul 12, 2023 55.38 55.61 54.66 54.89 320,733 -0.18(-0.33%)
Jul 11, 2023 56.94 57.28 54.53 55.07 492,539 -1.87(-3.28%)
Jul 10, 2023 55.99 57.46 55.93 56.94 255,357 +1.02(+1.82%)
Jul 07, 2023 57.30 57.70 55.81 55.92 401,346 -1.26(-2.20%)
Jul 06, 2023 57.40 58.19 56.42 57.18 398,434 -0.52(-0.90%)
Jul 05, 2023 57.76 58.35 57.10 57.70 350,330 +0.07(+0.12%)
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