Amphastar Pharmaceuticals, Inc. - AMPH - Stock Historical Data & Price

Date Range:

Date	Open	Close	Adj Close	High	Low	Volume
December 04, 2025	27.58	27.15	27.16	27.84	26.97	393,059
December 03, 2025	26.86	27.58	27.58	27.82	26.75	317,346
December 02, 2025	27.46	26.67	26.67	27.62	26.23	456,400
December 01, 2025	27.44	27.45	27.45	27.82	27.3	355,915
November 28, 2025	27.47	27.7	27.7	27.78	27.37	208,313
November 26, 2025	27.44	27.36	27.36	27.83	27.23	410,900
November 25, 2025	27	27.69	27.69	27.76	26.9	375,514
November 24, 2025	25.96	26.71	26.71	26.79	25.82	347,065
November 21, 2025	25.45	26.01	26.01	26.53	25.4	392,921
November 20, 2025	25.54	25.36	25.36	26.01	24.92	355,832
November 19, 2025	25.81	25.37	25.37	26.28	25.13	524,400
November 18, 2025	25.82	25.9	25.9	26.57	25.39	484,900
November 17, 2025	26.04	26.02	26.02	26.54	25.69	417,700
November 14, 2025	26.15	26.06	26.06	26.47	25.9	294,122
November 13, 2025	27.66	26.37	26.37	27.86	26	488,815
November 12, 2025	27.16	27.83	27.83	29	27.12	685,800
November 11, 2025	26	27.16	27.16	27.21	26	541,200
November 10, 2025	24.03	26.12	26.12	26.83	23.81	826,318
November 07, 2025	26.15	24.03	24.03	27.4	23.67	809,400
November 06, 2025	25.41	24.23	24.23	25.53	24.15	767,419
November 05, 2025	25.07	25.31	25.31	25.65	25.07	335,208
November 04, 2025	25.2	25.26	25.26	25.4	24.93	416,500
November 03, 2025	25.3	25.3	25.3	25.85	24.9	361,700
October 31, 2025	24.36	25.5	25.5	25.6	24.24	552,330
October 30, 2025	24.24	24.66	24.66	24.81	24.02	390,822
October 29, 2025	24.01	24.24	24.24	24.71	23.9	363,133
October 28, 2025	23.92	24.18	24.18	24.45	23.77	264,331
October 27, 2025	24.38	24.04	24.04	24.55	23.98	319,227
October 24, 2025	24.72	24.52	24.52	24.89	24.46	220,800
October 23, 2025	24.59	24.72	24.72	24.87	24.24	309,413
October 22, 2025	24.14	24.52	24.52	24.83	23.97	582,800
October 21, 2025	23.73	24.26	24.26	24.38	23.73	335,200
October 20, 2025	23.78	23.73	23.73	24.1	23.67	255,762
October 17, 2025	23.09	23.78	23.78	23.89	23.09	321,594
October 16, 2025	23.13	23.22	23.22	23.61	22.94	449,608
October 15, 2025	23.85	23.14	23.14	24.2	22.94	504,313
October 14, 2025	23.33	23.86	23.86	23.98	23.33	282,200
October 13, 2025	23.69	23.51	23.51	24.21	23.42	324,141
October 10, 2025	25.01	23.63	23.63	25.02	23.2	607,448
October 09, 2025	25.92	24.97	24.97	26.11	24.68	441,600
October 08, 2025	26	25.98	25.98	26.32	25.57	250,038
October 07, 2025	26.45	25.83	25.83	26.68	25.8	390,500
October 06, 2025	26.82	26.58	26.58	27.07	26.53	241,845
October 03, 2025	26.51	26.75	26.75	27.31	26.46	331,100
October 02, 2025	26.86	26.52	26.52	27.03	26.46	288,400
October 01, 2025	26.74	26.99	26.99	27.39	26.74	337,100
September 30, 2025	26.93	26.65	26.65	27.27	26.47	392,200
September 29, 2025	26.87	26.92	26.92	27.21	26.35	513,400
September 26, 2025	26.62	26.85	26.85	26.92	26.34	291,300
September 25, 2025	26.88	26.36	26.36	26.89	25.95	566,000
September 24, 2025	27.43	26.87	26.87	27.62	26.78	302,731
September 23, 2025	27.88	27.41	27.41	28.22	27.21	323,932
September 22, 2025	27.88	27.89	27.89	28.24	27.61	424,700
September 19, 2025	27.37	27.64	27.64	27.77	26.87	1.38M
September 18, 2025	27.09	27.44	27.44	27.7	26.9	458,903
September 17, 2025	27.13	26.98	26.98	27.9	26.57	920,934
September 16, 2025	27.3	27	27	27.51	26.87	497,900
September 15, 2025	28.07	27.27	27.27	28.39	27.23	422,800
September 12, 2025	28.86	28.06	28.06	28.86	27.91	273,671
September 11, 2025	28.36	28.68	28.68	28.89	28.36	422,300

Amphastar Pharmaceuticals, Inc. (AMPH) NASDAQ