Dark

AMPH
Amphastar Pharmaceuticals, Inc.
stock NASDAQ

At Close

Jul 29, 2026 3:59:53 PM EDT

20.58USD+2.159%(+0.43)321,672

0.00Bid 0.00Ask 0.00Spread

Pre-market

0.00USD-100.000%(-20.15)0

After-hours

Jul 29, 2026 4:37:30 PM EDT

19.44USD-5.550%(-1.14)329

OverviewOptionsHistoricalExchangesShortsMore

Date (EDT)	Open	High	Low	Close	Change	Volume	Change Since
2026-07-29	20.2400	20.7000	19.985000	20.5800	+2.134%	321,673	0.000%
2026-07-28	19.3800	20.2700	19.380000	20.1500	+5.057%	390,837	+2.134%
2026-07-27	18.9700	19.3100	18.960000	19.1800	+2.457%	285,920	+7.299%
2026-07-24	18.9000	19.1200	18.500000	18.7200	-0.795%	445,685	+9.936%
2026-07-23	19.0800	19.3400	18.730000	18.8700	-2.228%	650,431	+9.062%
2026-07-22	19.7100	19.9500	19.200000	19.3000	-1.480%	409,242	+6.632%
2026-07-21	19.4200	19.8900	19.420000	19.5900	-0.204%	621,074	+5.054%
2026-07-20	19.7800	19.9100	19.517600	19.6300	-0.582%	437,416	+4.840%
2026-07-17	19.8400	20.3500	19.630000	19.7450	-0.579%	338,457	+4.229%
2026-07-16	19.4000	20.1400	19.400000	19.8600	+2.371%	416,861	+3.625%
2026-07-15	18.8700	19.5000	18.830000	19.4000	+3.164%	356,090	+6.082%
2026-07-14	19.1000	19.3850	18.455000	18.8050	-2.514%	321,518	+9.439%
2026-07-13	19.0000	19.6800	18.950000	19.2900	+3.045%	384,540	+6.687%
2026-07-10	18.9700	19.1500	18.605000	18.7200	-1.577%	311,051	+9.936%
2026-07-09	18.8600	19.1300	18.610100	19.0200	+0.742%	446,629	+8.202%
2026-07-08	19.9600	19.9600	18.520000	18.8800	-5.976%	438,665	+9.004%
2026-07-07	20.0600	20.2800	19.740000	20.0800	+2.397%	449,984	+2.490%
2026-07-06	19.4800	20.0050	19.080000	19.6100	-0.153%	313,782	+4.946%
2026-07-02	20.3500	20.3500	19.630000	19.6400	-2.289%	315,754	+4.786%
2026-07-01	20.3200	20.5350	19.905000	20.1000	-0.396%	422,007	+2.388%
2026-06-30	20.7100	20.7100	19.860000	20.1800	-2.559%	400,207	+1.982%
2026-06-29	21.1200	21.2350	19.660000	20.7100	-4.913%	727,089	-0.628%
2026-06-26	21.0100	21.8050	20.880000	21.7800	+3.517%	623,978	-5.510%
2026-06-25	21.0000	22.0000	20.790000	21.0400	+0.095%	481,265	-2.186%
2026-06-24	19.7700	21.0900	19.770000	21.0200	+7.629%	701,214	-2.093%
2026-06-23	18.6100	19.5800	18.500000	19.5300	+6.547%	660,872	+5.376%
2026-06-22	18.8000	18.8950	18.220000	18.3300	-2.552%	767,439	+12.275%
2026-06-18	19.5100	19.6600	18.700000	18.8100	-3.091%	1,327,603	+9.410%
2026-06-17	19.9400	20.2600	19.150000	19.4100	-2.756%	1,008,517	+6.028%
2026-06-16	19.9100	20.4050	19.615000	19.9600	+1.268%	724,209	+3.106%
2026-06-15	20.1100	20.2850	19.590000	19.7100	-1.891%	528,513	+4.414%
2026-06-12	19.9000	20.5500	19.900000	20.0900	-2.143%	377,789	+2.439%
2026-06-11	20.1500	20.6450	20.100000	20.5300	+1.183%	463,563	+0.244%
2026-06-10	20.2100	20.7700	19.985000	20.2900	+0.645%	405,165	+1.429%
2026-06-09	19.5300	20.2700	19.530000	20.1600	+3.971%	506,257	+2.083%
2026-06-08	19.7500	19.8450	19.335000	19.3900	-1.773%	558,990	+6.137%
2026-06-05	18.8600	20.1420	18.850000	19.7400	+5.561%	750,284	+4.255%
2026-06-04	18.2800	18.8950	18.280000	18.7000	+3.201%	459,232	+10.053%
2026-06-03	18.2600	18.3600	17.730000	18.1200	-1.789%	509,338	+13.576%
2026-06-02	18.3600	18.6700	18.100000	18.4500	+0.163%	810,643	+11.545%
2026-06-01	18.6300	19.0100	18.220000	18.4200	-2.281%	569,686	+11.726%
2026-05-29	19.2800	19.4600	18.550000	18.8500	-2.332%	849,068	+9.178%
2026-05-28	19.0400	19.5500	19.015000	19.3000	+1.047%	621,219	+6.632%
2026-05-27	19.3100	19.3350	18.500000	19.1000	+1.542%	501,592	+7.749%
2026-05-26	18.4500	19.1200	18.450000	18.8100	+2.173%	670,766	+9.410%
2026-05-22	18.2500	18.4400	17.930000	18.4100	+1.377%	485,197	+11.787%
2026-05-21	18.0700	18.3700	17.755000	18.1600	+0.442%	1,656,977	+13.326%
2026-05-20	17.8100	18.1850	17.700000	18.0800	+1.459%	868,757	+13.827%
2026-05-19	17.2800	17.9125	17.000000	17.8200	+3.605%	725,147	+15.488%
2026-05-18	16.7000	17.3100	16.645000	17.2000	+1.956%	866,027	+19.651%
2026-05-15	17.2700	17.5300	16.755000	16.8700	-2.486%	679,289	+21.992%
2026-05-14	17.8100	18.0829	17.260000	17.3000	-5.568%	739,074	+18.960%
2026-05-13	17.5000	18.5650	17.430000	18.3200	+4.686%	971,190	+12.336%
2026-05-12	18.4100	18.5800	17.260000	17.5000	-5.149%	1,219,604	+17.600%
2026-05-11	19.1300	19.4100	18.330000	18.4500	-2.895%	1,359,764	+11.545%
2026-05-08	18.5750	19.5250	18.280000	19.0000	-20.932%	1,983,804	+8.316%
2026-05-07	24.0100	24.3450	23.870000	24.0300	+0.544%	373,521	-14.357%
2026-05-06	23.5000	24.1500	23.500000	23.9000	+2.180%	392,763	-13.891%
2026-05-05	22.8500	23.4600	22.750000	23.3900	+2.858%	366,945	-12.014%
2026-05-04	21.8200	23.2200	21.715000	22.7400	+3.931%	487,140	-9.499%
2026-05-01	21.9800	22.2600	21.635000	21.8800	-0.364%	353,190	-5.941%
2026-04-30	21.6300	22.3600	21.570000	21.9600	+1.526%	407,243	-6.284%
2026-04-29	21.5000	21.8600	21.480000	21.6300	-0.871%	266,941	-4.854%
2026-04-28	21.7100	22.0400	21.560000	21.8200	+0.785%	281,226	-5.683%
2026-04-27	21.4700	22.0600	21.460000	21.6500	+1.121%	329,513	-4.942%
2026-04-24	21.0500	21.6000	20.770000	21.4100	+1.904%	429,703	-3.877%
2026-04-23	20.9900	21.2300	20.765000	21.0100	+0.095%	302,590	-2.047%
2026-04-22	21.4000	21.5900	20.765000	20.9900	-1.037%	410,802	-1.953%
2026-04-21	22.3800	22.6600	21.100000	21.2100	-7.461%	684,192	-2.970%
2026-04-20	22.6700	23.2600	22.540100	22.9200	+0.175%	542,349	-10.209%
2026-04-17	22.1800	23.0000	21.980000	22.8800	+4.906%	537,833	-10.052%
2026-04-16	21.6700	22.0150	21.410000	21.8100	+0.600%	361,313	-5.640%
2026-04-15	21.3800	21.7600	21.190000	21.6800	+1.403%	389,357	-5.074%
2026-04-14	21.3600	21.6950	21.115000	21.3800	+0.094%	343,451	-3.742%
2026-04-13	20.1700	21.4800	20.170000	21.3600	+4.860%	577,874	-3.652%
2026-04-10	20.9800	21.1000	20.140000	20.3700	-2.396%	354,458	+1.031%
2026-04-09	20.3200	21.1899	20.320000	20.8700	+2.304%	519,217	-1.390%
2026-04-08	20.6800	21.0680	20.175000	20.4000	-0.875%	613,466	+0.882%
2026-04-07	20.3900	20.8100	20.260000	20.5800	0.000%	351,464	0.000%
2026-04-06	20.4500	20.7300	20.040000	20.5800	+0.636%	344,067	0.000%
2026-04-02	19.9500	20.6550	19.875000	20.4500	+1.038%	390,454	+0.636%
2026-04-01	19.7400	20.3100	19.680000	20.2400	+3.318%	677,388	+1.680%
2026-03-31	19.5300	20.0000	19.270000	19.5900	+1.925%	534,427	+5.054%
2026-03-30	19.1500	19.6700	19.070000	19.2200	+1.105%	410,715	+7.076%
2026-03-27	19.3700	19.6350	18.920000	19.0100	-2.663%	346,016	+8.259%
2026-03-26	19.5000	19.8000	18.979600	19.5300	-0.204%	363,470	+5.376%
2026-03-25	19.4500	19.9591	19.385000	19.5700	+1.768%	317,564	+5.161%
2026-03-24	19.1000	19.5700	18.980000	19.2300	0.000%	367,781	+7.020%
2026-03-23	20.0350	20.0800	19.230000	19.2300	-1.385%	414,859	+7.020%
2026-03-20	19.5600	19.7600	19.150000	19.5000	-0.205%	1,133,341	+5.538%
2026-03-19	19.1000	19.8200	19.060000	19.5400	+2.842%	583,123	+5.322%
2026-03-18	19.2100	19.4700	18.970000	19.0000	-2.614%	650,426	+8.316%
2026-03-17	19.4800	19.9950	19.475000	19.5100	+0.515%	635,572	+5.484%
2026-03-16	18.9300	19.4600	18.650000	19.4100	+6.766%	737,991	+6.028%
2026-03-13	18.2300	18.4600	17.805000	18.1800	+0.028%	604,648	+13.201%
2026-03-12	18.5750	18.5750	17.030000	18.1750	-3.170%	901,683	+13.232%
2026-03-11	18.9100	19.5000	18.522000	18.7700	-0.740%	548,286	+9.643%
2026-03-10	19.2100	19.5700	18.840000	18.9100	-1.562%	527,204	+8.831%
2026-03-09	18.9700	19.3700	18.520000	19.2100	-0.672%	687,764	+7.132%
2026-03-06	20.0500	20.0800	18.935000	19.3400	-5.382%	753,758	+6.412%
2026-03-05	19.6700	20.6000	19.540000	20.4400	+2.405%	726,358	+0.685%
2026-03-04	19.9700	20.2000	19.560000	19.9600	+0.656%	594,999	+3.106%
2026-03-03	20.3500	21.0700	19.810000	19.8300	-5.616%	740,835	+3.782%
2026-03-02	20.3000	21.1400	19.950000	21.0100	+3.856%	1,261,286	-2.047%
2026-02-27	22.4400	23.2650	19.830000	20.2300	-23.632%	1,965,708	+1.730%
2026-02-26	28.0000	28.1740	26.270000	26.4900	-5.291%	816,456	-22.310%
2026-02-25	27.7300	27.9900	27.030000	27.9700	+1.084%	415,987	-26.421%
2026-02-24	27.6500	28.3700	27.420000	27.6700	+0.436%	478,145	-25.623%
2026-02-23	28.4200	28.7500	27.190000	27.5500	-3.435%	496,697	-25.299%
2026-02-20	28.5800	28.9750	28.030000	28.5300	-0.035%	508,412	-27.865%
2026-02-19	28.5600	28.7100	28.420000	28.5400	-0.419%	340,481	-27.891%
2026-02-18	28.4500	29.1550	28.360000	28.6600	+0.738%	325,919	-28.193%
2026-02-17	28.6500	29.2300	28.390000	28.4500	-0.175%	316,867	-27.663%
2026-02-13	27.8200	29.0000	27.760000	28.5000	+3.448%	268,690	-27.789%
2026-02-12	28.6200	28.6200	27.240000	27.5500	-3.638%	437,438	-25.299%
2026-02-11	28.6200	29.0900	28.480000	28.5900	+0.070%	236,616	-28.017%
2026-02-10	28.7500	28.9200	28.490000	28.5700	-0.140%	182,569	-27.966%
2026-02-09	29.0800	29.2000	28.370000	28.6100	-2.221%	285,022	-28.067%
2026-02-06	28.6100	29.4600	28.610000	29.2600	+2.200%	343,842	-29.665%
2026-02-05	28.4500	29.2199	28.450000	28.6300	+0.070%	288,034	-28.117%
2026-02-04	28.7900	29.3700	28.560000	28.6100	+1.310%	378,845	-28.067%
2026-02-03	27.5700	28.2800	27.060000	28.2400	+1.146%	506,290	-27.125%
2026-02-02	26.3600	28.1300	26.340000	27.9200	+5.398%	444,060	-26.289%
2026-01-30	26.1500	26.6000	26.040000	26.4900	+1.300%	294,470	-22.310%
2026-01-29	26.1000	26.4300	25.800000	26.1500	+0.115%	184,370	-21.300%
2026-01-28	26.4500	26.4500	25.860000	26.1200	-0.495%	209,032	-21.210%
2026-01-27	26.3900	26.5800	25.810000	26.2500	-1.316%	264,506	-21.600%
2026-01-26	25.9200	26.7100	25.633600	26.6000	+2.623%	316,150	-22.632%
2026-01-23	26.0300	26.3700	25.810100	25.9200	-0.861%	269,462	-20.602%
2026-01-22	26.2500	26.9200	26.100000	26.1450	-0.286%	233,271	-21.285%
2026-01-21	25.9600	26.5900	25.930000	26.2200	+1.040%	251,521	-21.510%
2026-01-20	25.6200	26.7499	25.470000	25.9500	-0.460%	282,605	-20.694%
2026-01-16	25.9400	26.2300	25.420000	26.0700	+0.269%	286,949	-21.059%
2026-01-15	27.6500	27.6900	25.940000	26.0000	-6.340%	584,060	-20.846%
2026-01-14	28.8000	29.1950	27.610000	27.7600	-3.978%	472,419	-25.865%
2026-01-13	29.1600	29.3800	28.400100	28.9100	-1.667%	345,619	-28.814%
2026-01-12	28.0500	29.5200	27.310000	29.4000	+5.984%	455,860	-30.000%
2026-01-09	27.7100	28.0200	27.430000	27.7400	0.000%	244,646	-25.811%
2026-01-08	27.4000	28.3400	27.230000	27.7400	+1.500%	304,492	-25.811%
2026-01-07	27.8300	28.2800	27.150000	27.3300	-1.050%	342,666	-24.698%
2026-01-06	26.5300	27.7500	26.511000	27.6200	+3.368%	300,067	-25.489%
2026-01-05	26.2100	27.4500	26.110000	26.7200	+0.983%	419,181	-22.979%
2026-01-02	26.9100	26.9300	26.020000	26.4600	-1.195%	405,969	-22.222%
2025-12-31	27.0600	27.0600	26.640000	26.7800	-0.815%	218,279	-23.152%
2025-12-30	26.7500	27.1600	26.730000	27.0000	+0.784%	251,517	-23.778%
2025-12-29	27.0000	27.2250	26.770000	26.7900	-1.217%	220,491	-23.180%
2025-12-26	26.7700	27.1700	26.553600	27.1200	+1.156%	229,035	-24.115%
2025-12-24	26.4500	27.1150	26.440000	26.8100	+1.361%	175,168	-23.238%
2025-12-23	27.2400	27.2600	26.255000	26.4500	-3.184%	333,344	-22.193%
2025-12-22	26.5000	27.4400	26.345000	27.3200	+2.707%	507,332	-24.671%
2025-12-19	26.4000	26.8000	26.330000	26.6000	+0.377%	812,109	-22.632%
2025-12-18	26.0400	26.6200	25.920000	26.5000	+1.649%	340,800	-22.340%
2025-12-17	25.6000	26.5200	25.470000	26.0700	+1.796%	389,864	-21.059%
2025-12-16	26.1800	26.3100	25.160000	25.6100	-2.661%	499,486	-19.641%
2025-12-15	25.7800	26.5000	25.560000	26.3100	+4.116%	472,896	-21.779%
2025-12-12	26.1300	26.1300	25.200000	25.2700	-2.432%	341,410	-18.560%
2025-12-11	25.8100	25.9400	25.470000	25.9000	+0.739%	284,940	-20.541%
2025-12-10	25.6400	25.9100	25.220000	25.7100	+0.234%	483,522	-19.953%
2025-12-09	25.9700	26.3900	25.560000	25.6500	-1.384%	414,104	-19.766%
2025-12-08	26.8100	26.8450	25.950000	26.0100	-2.839%	300,935	-20.877%
2025-12-05	27.1500	27.4700	26.685000	26.7700	-1.400%	323,533	-23.123%
2025-12-04	27.5800	27.8388	26.970000	27.1500	-1.559%	404,953	-24.199%
2025-12-03	26.8600	27.8200	26.750000	27.5800	+3.412%	317,346	-25.381%
2025-12-02	27.4600	27.6200	26.230000	26.6700	-2.842%	456,357	-22.835%
2025-12-01	27.4400	27.8200	27.300000	27.4500	-0.903%	355,915	-25.027%
2025-11-28	27.4700	27.7800	27.370000	27.7000	+1.243%	208,313	-25.704%
2025-11-26	27.4400	27.8300	27.233700	27.3600	-1.192%	410,857	-24.781%
2025-11-25	27.0000	27.7600	26.900000	27.6900	+3.669%	375,514	-25.677%
2025-11-24	25.9600	26.7900	25.815000	26.7100	+2.691%	349,465	-22.950%
2025-11-21	25.4500	26.5300	25.400000	26.0100	+2.563%	392,921	-20.877%
2025-11-20	25.5400	26.0093	24.920000	25.3600	-0.039%	355,832	-18.849%
2025-11-19	25.8100	26.2800	25.130000	25.3700	-2.046%	524,386	-18.881%
2025-11-18	25.8200	26.5700	25.390000	25.9000	-0.461%	484,851	-20.541%
2025-11-17	26.0400	26.5400	25.690000	26.0200	-0.153%	417,693	-20.907%
2025-11-14	26.1500	26.4700	25.900000	26.0600	-1.176%	294,122	-21.028%
2025-11-13	27.6600	27.8599	26.000000	26.3700	-5.246%	488,815	-21.957%
2025-11-12	27.1600	29.0000	27.120000	27.8300	+2.467%	685,779	-26.051%
2025-11-11	26.0000	27.2100	26.000000	27.1600	+3.982%	541,178	-24.227%
2025-11-10	24.0300	26.8300	23.811800	26.1200	+8.697%	826,318	-21.210%
2025-11-07	26.1500	27.4000	23.670000	24.0300	-0.825%	809,392	-14.357%
2025-11-06	25.4100	25.5300	24.150000	24.2300	-4.267%	767,419	-15.064%
2025-11-05	25.0700	25.6500	25.070000	25.3100	+0.198%	335,208	-18.688%
2025-11-04	25.2000	25.3999	24.926000	25.2600	-0.158%	416,494	-18.527%
2025-11-03	25.3000	25.8543	24.900000	25.3000	-0.784%	361,693	-18.656%
2025-10-31	24.3600	25.6000	24.240000	25.5000	+3.406%	552,330	-19.294%
2025-10-30	24.2400	24.8100	24.020000	24.6600	+1.733%	390,822	-16.545%
2025-10-29	24.0100	24.7050	23.900000	24.2400	+0.248%	363,133	-15.099%
2025-10-28	23.9200	24.4500	23.770000	24.1800	+0.582%	264,331	-14.888%
2025-10-27	24.3800	24.5500	23.980000	24.0400	-1.958%	319,227	-14.393%
2025-10-24	24.7200	24.8900	24.460000	24.5200	-0.809%	220,779	-16.069%
2025-10-23	24.5900	24.8700	24.235000	24.7200	+0.816%	309,413	-16.748%
2025-10-22	24.1400	24.8325	23.970000	24.5200	+1.072%	582,786	-16.069%
2025-10-21	23.7300	24.3800	23.730000	24.2600	+2.233%	335,175	-15.169%
2025-10-20	23.7800	24.1000	23.670000	23.7300	-0.210%	255,762	-13.274%
2025-10-17	23.0900	23.8900	23.090000	23.7800	+2.412%	321,594	-13.457%
2025-10-16	23.1300	23.6050	22.940000	23.2200	+0.346%	449,608	-11.370%
2025-10-15	23.8500	24.2000	22.942000	23.1400	-3.018%	504,313	-11.063%
2025-10-14	23.3300	23.9800	23.330000	23.8600	+1.489%	282,166	-13.747%
2025-10-13	23.6900	24.2100	23.420000	23.5100	-0.508%	324,141	-12.463%
2025-10-10	25.0100	25.0235	23.195000	23.6300	-5.366%	607,448	-12.907%
2025-10-09	25.9200	26.1106	24.680000	24.9700	-3.888%	441,557	-17.581%
2025-10-08	26.0000	26.3200	25.570000	25.9800	+0.581%	250,038	-20.785%
2025-10-07	26.4500	26.6750	25.795000	25.8300	-2.822%	390,489	-20.325%
2025-10-06	26.8200	27.0650	26.530000	26.5800	-0.636%	241,845	-22.573%
2025-10-03	26.5100	27.3100	26.460000	26.7500	+0.867%	331,099	-23.065%
2025-10-02	26.8600	27.0300	26.460000	26.5200	-1.741%	288,366	-22.398%
2025-10-01	26.7400	27.3900	26.740000	26.9900	+1.276%	337,099	-23.750%
2025-09-30	26.9300	27.2650	26.470000	26.6500	-1.003%	392,172	-22.777%
2025-09-29	26.8700	27.2100	26.345000	26.9200	+0.261%	513,361	-23.551%
2025-09-26	26.6200	26.9200	26.335000	26.8500	+1.859%	291,264	-23.352%
2025-09-25	26.8800	26.8900	25.950000	26.3600	-1.898%	565,989	-21.927%
2025-09-24	27.4300	27.6210	26.781000	26.8700	-1.970%	302,731	-23.409%
2025-09-23	27.8800	28.2200	27.210000	27.4100	-1.721%	323,932	-24.918%
2025-09-22	27.8800	28.2400	27.610000	27.8900	+0.904%	424,678	-26.210%
2025-09-19	27.3700	27.7700	26.865000	27.6400	+0.729%	1,384,028	-25.543%
2025-09-18	27.0900	27.7000	26.900000	27.4400	+1.705%	458,903	-25.000%
2025-09-17	27.1300	27.9000	26.570000	26.9800	-0.074%	920,934	-23.721%
2025-09-16	27.3000	27.5100	26.870000	27.0000	-0.990%	497,864	-23.778%
2025-09-15	28.0700	28.3900	27.230000	27.2700	-2.815%	422,797	-24.532%
2025-09-12	28.8600	28.8600	27.910000	28.0600	-2.162%	273,671	-26.657%
2025-09-11	28.3600	28.8900	28.360000	28.6800	+0.986%	422,254	-28.243%
2025-09-10	29.1800	29.2600	28.340000	28.4000	-3.171%	309,841	-27.535%
2025-09-09	29.2600	29.4300	28.990000	29.3300	+0.239%	379,382	-29.833%
2025-09-08	29.3000	29.4100	28.490900	29.2600	-0.544%	385,699	-29.665%
2025-09-05	29.0800	29.7800	28.980000	29.4200	+0.788%	414,943	-30.048%
2025-09-04	29.3900	29.5900	28.875000	29.1900	-0.681%	553,530	-29.496%
2025-09-03	30.4900	31.0950	29.285000	29.3900	-4.609%	567,057	-29.976%
2025-09-02	30.8600	31.2641	30.440000	30.8100	+0.621%	414,770	-33.204%
2025-08-29	30.2100	30.8100	30.180000	30.6200	+1.190%	290,925	-32.789%
2025-08-28	30.5000	30.5550	29.860000	30.2600	-0.754%	316,721	-31.989%
2025-08-27	30.1000	30.9450	30.100000	30.4900	+0.494%	326,146	-32.502%
2025-08-26	29.9800	30.8020	29.930000	30.3400	+1.710%	408,475	-32.169%
2025-08-25	30.5300	30.5450	29.465000	29.8300	-2.197%	374,384	-31.009%
2025-08-22	29.9800	30.9000	29.980000	30.5000	+2.832%	494,915	-32.525%
2025-08-21	29.5700	30.4200	29.430000	29.6600	+0.135%	491,388	-30.614%
2025-08-20	30.2100	30.3900	29.420000	29.6200	-2.341%	434,164	-30.520%
2025-08-19	29.9300	30.9900	29.845000	30.3300	+1.915%	527,820	-32.146%
2025-08-18	29.8300	30.6499	29.580000	29.7600	-0.235%	433,187	-30.847%
2025-08-15	30.2100	30.6300	29.820000	29.8300	-1.258%	651,993	-31.009%
2025-08-14	30.0300	30.6317	29.639400	30.2100	-0.886%	464,377	-31.877%
2025-08-13	30.4400	31.2300	30.000000	30.4800	+0.428%	1,016,810	-32.480%
2025-08-12	28.1800	30.6300	28.140000	30.3500	+10.928%	1,601,991	-32.191%
2025-08-11	24.7300	27.4100	24.690000	27.3600	+14.910%	1,816,531	-24.781%
2025-08-08	22.2900	24.7000	22.070000	23.8100	+10.130%	1,005,009	-13.566%
2025-08-07	21.1500	21.7400	20.701700	21.6200	+3.842%	705,613	-4.810%
2025-08-06	21.4200	21.6799	20.785000	20.8200	-2.892%	414,589	-1.153%
2025-08-05	21.4400	21.5650	21.180000	21.4400	+0.187%	388,966	-4.011%
2025-08-04	21.1900	21.4300	20.878045	21.4000	+0.896%	463,650	-3.832%
2025-08-01	20.8600	21.2500	20.385000	21.2100	+1.241%	440,154	-2.970%
2025-07-31	21.0600	21.3300	20.770000	20.9500	-1.828%	545,003	-1.766%
2025-07-30	21.7000	21.8400	21.230000	21.3400	-1.523%	304,733	-3.561%
2025-07-29	22.1000	22.1300	21.650000	21.6700	-2.563%	358,966	-5.030%
2025-07-28	22.3700	22.9000	22.060000	22.2400	-0.581%	457,570	-7.464%
2025-07-25	22.4600	22.5000	22.130000	22.3700	-0.622%	329,130	-8.002%
2025-07-24	22.4800	22.6750	22.385000	22.5100	-0.530%	320,091	-8.574%
2025-07-23	21.5300	22.7000	21.510000	22.6300	+5.995%	518,064	-9.059%
2025-07-22	21.2900	21.7000	21.080000	21.3500	+0.755%	469,787	-3.607%
2025-07-21	20.7000	21.2150	20.640000	21.1900	+2.764%	536,090	-2.879%
2025-07-18	21.9200	21.9979	20.430000	20.6200	-4.977%	430,269	-0.194%
2025-07-17	21.2000	21.9200	21.190000	21.7000	+2.022%	407,650	-5.161%
2025-07-16	21.4100	21.6500	21.090000	21.2700	+0.425%	675,721	-3.244%
2025-07-15	22.1100	22.3100	21.160000	21.1800	-3.508%	504,519	-2.833%
2025-07-14	21.7100	22.1200	21.500000	21.9500	+1.339%	504,960	-6.241%
2025-07-11	22.0000	22.1356	21.480000	21.6600	-2.476%	449,086	-4.986%
2025-07-10	22.4400	22.8304	22.200000	22.2100	-1.025%	464,802	-7.339%
2025-07-09	22.7800	22.9400	22.290000	22.4400	-0.708%	371,461	-8.289%
2025-07-08	22.8600	23.3800	22.430000	22.6000	-1.137%	657,360	-8.938%
2025-07-07	23.0600	23.7150	22.800000	22.8600	-1.466%	791,122	-9.974%
2025-07-03	23.6600	23.7700	22.915000	23.2000	-1.612%	221,782	-11.293%
2025-07-02	23.4300	23.7200	23.200000	23.5800	+1.028%	465,368	-12.723%
2025-07-01	22.9400	24.5200	22.890000	23.3400	+1.655%	444,408	-11.825%
2025-06-30	23.1700	23.2487	22.810000	22.9600	-0.520%	396,102	-10.366%
2025-06-27	23.3200	23.4150	22.860100	23.0800	-0.431%	1,270,637	-10.832%
2025-06-26	23.6000	23.7650	23.030000	23.1800	-1.151%	517,512	-11.217%
2025-06-25	24.5100	24.5300	23.310000	23.4500	-4.597%	426,886	-12.239%
2025-06-24	24.8300	25.0399	24.530000	24.5800	-0.405%	395,482	-16.273%
2025-06-23	24.5000	24.7490	24.395000	24.6800	+0.489%	409,110	-16.613%
2025-06-20	25.6700	25.8500	24.350000	24.5600	-3.078%	672,733	-16.205%
2025-06-18	25.5800	25.8000	25.260000	25.3400	-1.054%	393,981	-18.785%
2025-06-17	25.7800	26.0600	25.535000	25.6100	-1.424%	399,985	-19.641%
2025-06-16	25.9600	26.0300	25.590000	25.9800	+0.620%	366,128	-20.785%
2025-06-13	25.9300	26.2700	25.700000	25.8200	-2.345%	402,502	-20.294%
2025-06-12	26.0800	26.4950	25.770000	26.4400	+1.497%	506,968	-22.163%
2025-06-11	26.9400	27.0400	26.020000	26.0500	-3.232%	528,236	-20.998%
2025-06-10	26.7600	27.4000	26.700000	26.9200	+1.127%	624,899	-23.551%
2025-06-09	26.1700	26.8600	26.100000	26.6200	+2.424%	514,539	-22.690%
2025-06-06	25.7600	26.0200	25.525000	25.9900	+1.842%	359,174	-20.816%
2025-06-05	25.9000	25.9050	25.190000	25.5200	-1.315%	555,176	-19.357%
2025-06-04	26.0100	26.5700	25.755000	25.8600	-0.577%	395,494	-20.418%
2025-06-03	25.3900	26.1700	25.130000	26.0100	+2.482%	526,276	-20.877%
2025-06-02	25.6100	26.0500	25.260000	25.3800	-1.284%	656,459	-18.913%
2025-05-30	25.5900	25.9200	25.149600	25.7100	+0.273%	460,917	-19.953%
2025-05-29	25.3900	25.7900	25.180000	25.6400	+1.504%	524,701	-19.735%
2025-05-28	25.5100	25.6850	25.120000	25.2600	-1.058%	476,426	-18.527%
2025-05-27	24.8600	25.7200	24.810000	25.5300	+4.332%	532,528	-19.389%
2025-05-23	23.7400	24.4900	23.740000	24.4700	+1.116%	548,566	-15.897%
2025-05-22	24.0000	24.3900	23.930600	24.2000	+0.166%	360,874	-14.959%
2025-05-21	24.8100	24.8350	24.150000	24.1600	-3.630%	341,435	-14.818%
2025-05-20	24.8300	25.2400	24.670000	25.0700	+1.129%	482,087	-17.910%
2025-05-19	24.6400	24.9300	24.430000	24.7900	-0.282%	359,141	-16.983%
2025-05-16	24.3200	24.9000	24.200000	24.8600	+2.220%	510,675	-17.216%
2025-05-15	23.4100	24.7000	23.200100	24.3200	+4.378%	667,744	-15.378%
2025-05-14	23.8800	23.9700	23.265000	23.3000	-2.429%	578,020	-11.674%
2025-05-13	24.2100	24.4192	23.770000	23.8800	-1.890%	444,961	-13.819%
2025-05-12	24.0500	24.5650	23.600000	24.3400	+0.954%	563,807	-15.448%
2025-05-09	24.5400	25.0250	23.300000	24.1100	-2.191%	790,224	-14.641%
2025-05-08	24.5900	25.3600	23.680000	24.6500	+0.901%	751,566	-16.511%
2025-05-07	24.0300	24.6100	23.945000	24.4300	+2.346%	819,850	-15.759%
2025-05-06	24.9500	25.0400	23.690000	23.8700	-4.976%	751,946	-13.783%
2025-05-05	24.4600	25.3650	24.340000	25.1200	+2.531%	681,271	-18.073%
2025-05-02	24.4100	24.6900	24.190000	24.5000	+2.596%	674,104	-16.000%
2025-05-01	24.1900	24.5400	23.760000	23.8800	-2.171%	562,396	-13.819%
2025-04-30	24.4400	24.5150	23.910000	24.4100	-0.367%	460,186	-15.690%
2025-04-29	24.3500	24.6100	24.190000	24.5000	+0.369%	296,382	-16.000%
2025-04-28	24.2800	24.4700	24.120000	24.4100	+0.909%	355,520	-15.690%
2025-04-25	23.9700	24.2500	23.630000	24.1900	+0.499%	235,287	-14.924%
2025-04-24	23.5800	24.1500	23.350000	24.0700	+2.165%	388,155	-14.499%
2025-04-23	24.4000	24.6850	23.460000	23.5600	-1.546%	317,446	-12.649%
2025-04-22	23.7100	24.0100	23.170000	23.9300	+1.830%	524,820	-13.999%
2025-04-21	23.2100	23.5900	22.840000	23.5000	+0.642%	486,542	-12.426%
2025-04-17	23.0800	23.6150	23.080000	23.3500	+1.566%	735,039	-11.863%
2025-04-16	23.6200	23.7430	22.640000	22.9900	-2.170%	904,628	-10.483%
2025-04-15	24.2600	24.9200	23.390000	23.5000	-3.767%	779,954	-12.426%
2025-04-14	24.5500	24.7650	23.940000	24.4200	+1.076%	523,512	-15.725%
2025-04-11	23.7300	24.2150	23.350000	24.1600	+2.721%	482,794	-14.818%
2025-04-10	24.9900	25.0100	22.735000	23.5200	-6.778%	840,599	-12.500%
2025-04-09	23.3600	25.5100	23.360000	25.2300	+6.232%	1,011,359	-18.430%
2025-04-08	25.4700	25.6550	23.720000	23.7500	-5.000%	972,673	-13.347%
2025-04-07	25.7200	25.9450	24.710000	25.0000	-6.050%	1,290,496	-17.680%
2025-04-04	26.3400	27.0200	26.140000	26.6100	-2.313%	699,446	-22.661%
2025-04-03	27.6700	28.0624	26.880000	27.2400	-2.014%	605,671	-24.449%
2025-04-02	27.9900	28.2900	27.020000	27.8000	-1.732%	717,778	-25.971%
2025-04-01	28.8600	29.2680	28.170000	28.2900	-2.415%	785,073	-27.253%
2025-03-31	28.2200	29.1800	28.005000	28.9900	+1.970%	547,881	-29.010%
2025-03-28	28.4500	28.7100	28.225000	28.4300	-0.246%	386,852	-27.612%
2025-03-27	28.3700	28.7500	28.260000	28.5000	+0.458%	457,511	-27.789%
2025-03-26	28.4000	28.8300	28.020000	28.3700	-0.070%	429,394	-27.459%
2025-03-25	28.5000	28.6600	27.800000	28.3900	-0.246%	701,848	-27.510%
2025-03-24	28.5000	28.6450	28.065000	28.4600	+0.601%	531,977	-27.688%
2025-03-21	27.6600	28.4400	27.660000	28.2900	+1.362%	1,407,232	-27.253%
2025-03-20	27.7200	28.3800	27.685000	27.9100	+0.179%	393,486	-26.263%
2025-03-19	27.4000	27.8700	27.090000	27.8600	+1.827%	450,925	-26.131%
2025-03-18	27.5000	27.8100	27.220000	27.3600	-1.192%	593,461	-24.781%
2025-03-17	26.6800	27.9800	26.680000	27.6900	+3.863%	636,417	-25.677%
2025-03-14	26.2200	26.7600	26.139400	26.6600	+1.601%	497,570	-22.806%
2025-03-13	26.3400	26.8600	25.885000	26.2400	-0.152%	466,476	-21.570%
2025-03-12	27.3500	27.5500	26.220000	26.2800	-3.842%	688,695	-21.689%
2025-03-11	28.4000	28.4000	27.251000	27.3300	-3.801%	511,413	-24.698%
2025-03-10	28.6400	29.3400	28.220000	28.4100	-1.388%	532,331	-27.561%
2025-03-07	28.1400	29.3700	28.080000	28.8100	+1.730%	522,500	-28.566%
2025-03-06	27.8000	28.4900	27.260000	28.3200	+0.927%	709,094	-27.331%
2025-03-05	27.5200	28.0600	27.040000	28.0600	+1.593%	607,709	-26.657%
2025-03-04	27.2100	28.2377	27.000000	27.6200	+0.363%	787,131	-25.489%
2025-03-03	28.5100	29.1036	26.980000	27.5200	-3.201%	998,239	-25.218%
2025-02-28	30.5000	31.0000	27.820000	28.4300	-9.717%	1,824,560	-27.612%
2025-02-27	31.1800	31.7000	31.000000	31.4900	+0.897%	595,786	-34.646%
2025-02-26	31.8200	32.2200	31.080000	31.2100	-2.438%	499,567	-34.060%
2025-02-25	32.3900	32.5600	31.870000	31.9900	-0.929%	566,361	-35.667%
2025-02-24	31.2300	32.6900	31.075000	32.2900	+3.229%	503,078	-36.265%
2025-02-21	31.5500	31.6000	30.960000	31.2800	-0.064%	498,766	-34.207%
2025-02-20	31.2000	31.4100	30.950000	31.3000	+0.288%	537,594	-34.249%
2025-02-19	30.6900	31.4500	30.645000	31.2100	+1.496%	607,389	-34.060%
2025-02-18	31.0200	31.6500	30.340000	30.7500	-0.870%	963,143	-33.073%
2025-02-14	31.7700	31.9000	30.950000	31.0200	-2.268%	546,723	-33.656%
2025-02-13	31.9500	31.9500	31.460000	31.7400	-0.251%	308,485	-35.161%
2025-02-12	32.1100	32.4000	31.745000	31.8200	-1.211%	348,733	-35.324%
2025-02-11	32.1000	32.2500	31.550000	32.2100	0.000%	433,818	-36.107%
2025-02-10	32.2200	32.4800	31.760000	32.2100	-0.494%	317,551	-36.107%
2025-02-07	32.7100	32.9500	32.160000	32.3700	-1.281%	297,397	-36.423%
2025-02-06	32.8200	33.4200	32.600000	32.7900	0.000%	343,123	-37.237%

.dark-mode .qrpZfL{ color: white; background-color: #333333; border: 2px solid white; }.light-mode .qrpZfL{ color: #333333; background-color: white; border: 2px solid #333333; }AMPHAmphastar Pharmaceuticals, Inc.stock NASDAQ

AMPH
Amphastar Pharmaceuticals, Inc.
stock NASDAQ