Supernus Pharmaceuticals, Inc. (SUPN) NASDAQ

Currency In USD

SUPN Historical Return

If you invested $1000 in Supernus Pharmaceuticals, Inc. (SUPN) 10 years ago, it would be worth $1,848.78 as of September 11, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $1,550.39, while $1000 invested 1 year ago would be worth $893.48. This corresponds to total returns of 84.88%, 55.04%, -10.65%, respectively, with annualized returns of 6.34%, 9.17%, -10.65%.

Custom investment amounts or purchase dates can also be explored using the Stoculator calculator. Past performance does not guarantee future results.

SUPN Historical Data

Date Range:

Date	Open	Close	Adj Close	High	Low	Volume
September 10, 2026	41.84	41.69	41.69	42.55	41.11	726,748
September 09, 2026	42.17	42.07	42.07	42.59	41.5	580,125
September 08, 2026	43.56	42.43	42.43	43.56	42.32	428,151
September 04, 2026	43.66	43.53	43.53	44.11	43.43	444,196
September 03, 2026	44.56	43.97	43.97	44.56	43.16	390,319
September 02, 2026	44.42	44.03	44.03	45.05	43.67	445,940
September 01, 2026	44.35	43.74	43.74	44.75	43.53	757,780
August 31, 2026	43.82	44.21	44.21	44.37	42.84	535,722
August 28, 2026	43.95	43.73	43.73	44.34	43.12	487,775
August 27, 2026	44.87	44.19	44.19	45.04	43.89	464,946
August 26, 2026	45.11	44.88	44.88	45.43	44.5	499,683
August 25, 2026	45.37	45.36	45.36	45.86	44.23	496,055
August 24, 2026	45.6	45.11	45.11	45.86	44.82	495,504
August 21, 2026	47.71	45.85	45.85	47.82	45.79	748,892
August 20, 2026	47.86	47.45	47.45	48.26	46.93	646,851
August 19, 2026	49.5	48.54	48.54	49.82	48.51	797,223
August 18, 2026	48.8	49.03	49.03	49.57	48.54	592,237
August 17, 2026	47.66	48.27	48.27	48.66	47.66	528,629
August 14, 2026	46.7	48.27	48.27	48.39	46.57	309,182
August 13, 2026	47.74	47.15	47.15	48.18	46.87	645,327
August 12, 2026	47.15	47.87	47.87	47.92	46.26	634,900
August 11, 2026	47.01	46.88	46.88	48.61	46.77	669,683
August 10, 2026	47.11	47.07	47.07	47.72	46.47	739,644
August 07, 2026	47	47.64	47.64	47.88	46.43	695,164
August 06, 2026	47.82	46.76	46.76	48.4	46.55	1.34M
August 05, 2026	42.95	46.91	46.91	47.89	42.91	1.67M
August 04, 2026	46.23	43.25	43.25	46.58	42.63	3.71M
August 03, 2026	50.45	46	46	52.5	44.17	4.52M
July 31, 2026	45.19	44.63	44.63	45.67	44.35	572,074
July 30, 2026	46.3	45.61	45.61	46.77	45.5	466,933
July 29, 2026	47.6	46.57	46.57	48	46.08	522,131
July 28, 2026	47.78	47.73	47.73	48.45	46.77	538,195
July 27, 2026	46.56	46.98	46.98	48.08	45.84	523,012
July 23, 2026	46.41	47.19	47.19	47.54	46.07	463,336
July 22, 2026	47.87	46.94	46.94	48.13	46.79	430,059
July 21, 2026	47	47.87	47.87	48.02	46.39	450,288
July 20, 2026	48.09	47.42	47.42	48.79	47.3	618,820
July 17, 2026	48.15	48.04	48.04	49.06	47.9	439,397
July 16, 2026	47.53	48.21	48.21	48.3	47.24	593,351
July 15, 2026	46.81	47.73	47.73	47.74	46.2	500,530
July 14, 2026	46.89	46.66	46.66	47.57	46.09	824,025
July 13, 2026	48.09	47.35	47.35	48.24	46.91	685,265
July 10, 2026	48.8	48.46	48.46	48.8	47.39	1.13M
July 09, 2026	50.82	48.75	48.75	51.37	47.88	1.3M
July 08, 2026	47.85	50.44	50.44	50.62	47.55	1.43M
July 07, 2026	47.74	47.94	47.94	48.34	47.04	1.02M
July 06, 2026	47.62	47.24	47.24	48.12	46.76	878,465
July 02, 2026	47.49	48.05	48.05	48.11	46.97	969,031
July 01, 2026	46.98	47.41	47.41	47.62	45.99	902,155
June 30, 2026	46.64	46.51	46.51	47.08	46	679,966
June 29, 2026	46.49	46.8	46.8	46.85	45.8	941,113
June 26, 2026	44.75	46.84	46.84	47.13	44.75	3.34M
June 25, 2026	44.94	44.75	44.75	45.46	44.49	697,624
June 24, 2026	44.55	45.14	45.14	45.5	44.12	759,648
June 23, 2026	44.69	44.48	44.48	45.5	44.44	526,311
June 22, 2026	44.5	44.48	44.48	45	44.09	513,636
June 18, 2026	44.07	44.38	44.38	44.58	43.54	1.1M
June 17, 2026	43.37	43.58	43.58	44.01	42.5	541,919
June 16, 2026	44.09	43.58	43.58	44.26	42.45	720,112
June 15, 2026	44.36	43.86	43.86	44.44	42.74	901,382