Protagonist Therapeutics Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Sep 1, 2026	147.75	150.34	144.73	145.92	-	-1.24%	103,837
Aug 31, 2026	143.26	149.30	141.95	147.75	147.75	2.37%	567,238
Aug 28, 2026	147.73	147.95	142.43	144.33	144.33	-3.46%	499,770
Aug 27, 2026	150.35	151.68	147.11	149.50	149.50	-1.32%	381,491
Aug 26, 2026	150.36	152.07	147.69	151.50	151.50	0.60%	335,461
Aug 25, 2026	155.84	157.98	150.09	150.59	150.59	-2.67%	664,522
Aug 24, 2026	154.32	158.08	149.94	154.72	154.72	0.26%	476,085
Aug 21, 2026	152.10	154.95	150.82	154.32	154.32	2.41%	402,517
Aug 20, 2026	152.45	155.25	148.28	150.69	150.69	-2.74%	518,555
Aug 19, 2026	160.81	160.81	154.22	154.94	154.94	-1.53%	778,121
Aug 18, 2026	157.96	160.00	156.81	157.34	157.34	-0.81%	399,547
Aug 17, 2026	155.11	158.95	153.60	158.62	158.62	2.27%	506,941
Aug 14, 2026	150.23	155.53	149.17	155.10	155.10	2.43%	426,255
Aug 13, 2026	153.15	154.99	150.92	151.42	151.42	-0.39%	444,781
Aug 12, 2026	148.21	152.70	147.33	152.01	152.01	2.51%	416,319
Aug 11, 2026	151.88	151.88	147.37	148.29	148.29	-1.14%	306,099
Aug 10, 2026	149.31	151.60	147.40	150.00	150.00	2.83%	545,739
Aug 7, 2026	146.18	147.32	144.44	145.87	145.87	-0.21%	321,055
Aug 6, 2026	145.01	148.00	139.95	146.18	146.18	6.45%	837,503
Aug 5, 2026	137.49	138.08	135.39	137.32	137.32	1.11%	427,530
Aug 4, 2026	133.02	138.05	132.26	135.81	135.81	2.67%	634,671
Aug 3, 2026	135.78	135.98	131.68	132.28	132.28	-3.19%	451,166
Jul 31, 2026	138.36	138.37	131.69	136.64	136.64	-1.44%	548,764
Jul 30, 2026	131.77	138.95	130.63	138.64	138.64	4.24%	556,392
Jul 29, 2026	136.90	137.43	132.72	133.00	133.00	-2.81%	560,653
Jul 28, 2026	136.69	137.00	133.20	136.84	136.84	0.94%	282,383
Jul 27, 2026	136.11	139.92	135.43	135.56	135.56	-0.40%	416,781
Jul 24, 2026	136.11	137.20	133.78	136.11	136.11	0.50%	298,402
Jul 23, 2026	133.79	137.33	132.00	135.43	135.43	-0.01%	605,784
Jul 22, 2026	139.45	139.45	134.42	135.44	135.44	-2.08%	710,439
Jul 21, 2026	133.34	139.72	131.05	138.31	138.31	3.01%	580,567
Jul 20, 2026	141.79	143.29	133.64	134.27	134.27	-4.71%	762,738
Jul 17, 2026	131.37	141.08	131.37	140.91	140.91	6.73%	519,116
Jul 16, 2026	135.21	136.56	131.35	132.02	132.02	-2.54%	602,064
Jul 15, 2026	128.00	139.22	126.97	135.46	135.46	3.19%	836,109
Jul 14, 2026	131.89	131.95	128.68	131.27	131.27	1.06%	564,974
Jul 13, 2026	130.05	131.36	125.32	129.89	129.89	-1.16%	541,071
Jul 10, 2026	137.12	137.12	130.64	131.42	131.42	-4.52%	1,060,849
Jul 9, 2026	139.26	141.10	136.99	137.64	137.64	-1.73%	1,613,332
Jul 8, 2026	139.50	140.95	136.08	140.07	140.07	-0.55%	931,358
Jul 7, 2026	132.59	141.08	130.69	140.85	140.85	7.11%	1,374,383
Jul 6, 2026	131.25	132.79	128.15	131.50	131.50	-0.09%	640,087
Jul 2, 2026	125.89	131.87	125.24	131.62	131.62	5.15%	708,390
Jul 1, 2026	122.96	126.04	122.48	125.17	125.17	2.11%	521,774
Jun 30, 2026	122.04	124.72	119.57	122.58	122.58	0.78%	560,872
Jun 29, 2026	121.34	126.59	118.27	121.63	121.63	-0.21%	741,106
Jun 26, 2026	122.00	123.43	118.31	121.88	121.88	-0.61%	2,593,942
Jun 25, 2026	122.31	126.25	121.48	122.63	122.63	0.39%	1,048,006
Jun 24, 2026	119.38	124.80	118.81	122.15	122.15	2.68%	1,132,431
Jun 23, 2026	114.66	119.85	114.56	118.96	118.96	3.42%	700,455