Amphastar Pharmaceuticals Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Mar 28, 2025	28.45	28.71	28.23	28.43	28.43	-0.25%	386,852
Mar 27, 2025	28.37	28.75	28.26	28.50	28.50	0.46%	457,511
Mar 26, 2025	28.40	28.83	28.02	28.37	28.37	-0.07%	437,895
Mar 25, 2025	28.50	28.66	27.80	28.39	28.39	-0.25%	713,226
Mar 24, 2025	28.50	28.65	28.07	28.46	28.46	0.60%	538,425
Mar 21, 2025	27.66	28.44	27.66	28.29	28.29	1.36%	1,478,691
Mar 20, 2025	27.72	28.38	27.69	27.91	27.91	0.18%	406,990
Mar 19, 2025	27.40	27.87	27.09	27.86	27.86	1.83%	471,499
Mar 18, 2025	27.50	27.81	27.22	27.36	27.36	-1.19%	602,473
Mar 17, 2025	26.68	27.98	26.68	27.69	27.69	3.86%	648,301
Mar 14, 2025	26.22	26.76	26.14	26.66	26.66	1.60%	500,925
Mar 13, 2025	26.34	26.86	25.89	26.24	26.24	-0.15%	467,567
Mar 12, 2025	27.35	27.55	26.22	26.28	26.28	-3.84%	700,518
Mar 11, 2025	28.40	28.40	27.25	27.33	27.33	-3.80%	515,760
Mar 10, 2025	28.64	29.34	28.22	28.41	28.41	-1.39%	536,987
Mar 7, 2025	28.14	29.37	28.08	28.81	28.81	1.73%	544,259
Mar 6, 2025	27.80	28.49	27.26	28.32	28.32	0.93%	721,266
Mar 5, 2025	27.52	28.06	27.04	28.06	28.06	1.59%	632,357
Mar 4, 2025	27.21	28.24	27.00	27.62	27.62	0.36%	803,214
Mar 3, 2025	28.51	29.10	26.98	27.52	27.52	-3.20%	999,415
Feb 28, 2025	30.50	31.00	27.82	28.43	28.43	-9.72%	1,792,762
Feb 27, 2025	31.18	31.70	31.00	31.49	31.49	0.90%	606,609
Feb 26, 2025	31.82	32.22	31.08	31.21	31.21	-2.44%	507,966
Feb 25, 2025	32.39	32.56	31.87	31.99	31.99	-0.93%	575,644
Feb 24, 2025	31.23	32.69	31.08	32.29	32.29	3.23%	518,437
Feb 21, 2025	31.55	31.60	30.96	31.28	31.28	-0.06%	523,506
Feb 20, 2025	31.20	31.41	30.95	31.30	31.30	0.29%	550,105
Feb 19, 2025	30.69	31.45	30.65	31.21	31.21	1.50%	661,918
Feb 18, 2025	31.02	31.65	30.34	30.75	30.75	-0.87%	977,847
Feb 14, 2025	31.77	31.90	30.95	31.02	31.02	-2.27%	550,056
Feb 13, 2025	31.95	31.95	31.46	31.74	31.74	-0.25%	316,789
Feb 12, 2025	32.11	32.40	31.75	31.82	31.82	-1.21%	358,757
Feb 11, 2025	32.10	32.25	31.55	32.21	32.21	-	435,624
Feb 10, 2025	32.22	32.48	31.76	32.21	32.21	-0.49%	319,637
Feb 7, 2025	32.71	32.95	32.16	32.37	32.37	-1.28%	311,590
Feb 6, 2025	32.82	33.42	32.60	32.79	32.79	-	349,696
Feb 5, 2025	33.35	33.35	32.50	32.79	32.79	-1.21%	356,053
Feb 4, 2025	32.42	33.76	32.25	33.19	33.19	-0.60%	440,763
Feb 3, 2025	34.08	34.39	32.88	33.39	33.39	-4.24%	611,610
Jan 31, 2025	36.35	36.35	34.75	34.87	34.87	-4.12%	517,933
Jan 30, 2025	36.42	37.04	36.06	36.37	36.37	-0.14%	421,769
Jan 29, 2025	36.92	37.28	36.40	36.42	36.42	-1.89%	425,146
Jan 28, 2025	37.08	37.38	36.53	37.12	37.12	0.03%	444,824
Jan 27, 2025	36.62	37.66	36.48	37.11	37.11	1.67%	421,701
Jan 24, 2025	36.31	36.84	35.79	36.50	36.50	0.30%	588,475
Jan 23, 2025	36.22	36.66	35.84	36.39	36.39	0.69%	350,577
Jan 22, 2025	35.90	36.30	35.56	36.14	36.14	0.31%	358,168
Jan 21, 2025	36.04	36.32	35.46	36.03	36.03	0.92%	474,835
Jan 17, 2025	35.67	35.96	35.27	35.70	35.70	0.11%	410,713
Jan 16, 2025	36.28	36.85	34.60	35.66	35.66	-1.60%	1,060,443