Protagonist Therapeutics, Inc. (PTGX)

Protagonist Therapeutics Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Feb 6, 2026	82.11	85.05	81.55	84.49	84.49	4.74%	812,792
Feb 5, 2026	83.62	85.43	80.20	80.67	80.67	-3.16%	457,064
Feb 4, 2026	85.59	85.60	81.00	83.30	83.30	-2.68%	1,077,544
Feb 3, 2026	83.09	86.10	82.88	85.59	85.59	3.06%	769,376
Feb 2, 2026	81.80	84.55	81.14	83.05	83.05	1.53%	1,273,115
Jan 30, 2026	79.77	82.56	78.75	81.80	81.80	2.60%	1,174,011
Jan 29, 2026	81.39	82.49	77.70	79.73	79.73	-2.48%	952,527
Jan 28, 2026	82.45	83.69	80.00	81.76	81.76	-1.59%	776,734
Jan 27, 2026	82.00	83.87	82.00	83.08	83.08	0.95%	507,153
Jan 26, 2026	82.53	84.32	81.94	82.30	82.30	-0.96%	474,019
Jan 23, 2026	84.62	85.50	82.67	83.10	83.10	-1.99%	569,261
Jan 22, 2026	82.83	85.20	80.65	84.79	84.79	1.07%	609,099
Jan 21, 2026	82.51	83.96	80.27	83.89	83.89	0.56%	1,086,072
Jan 20, 2026	81.16	83.63	79.87	83.42	83.42	1.74%	901,339
Jan 16, 2026	84.51	84.67	81.47	81.99	81.99	-3.26%	664,933
Jan 15, 2026	84.60	87.44	84.33	84.75	84.75	-0.56%	839,322
Jan 14, 2026	80.85	85.30	80.47	85.23	85.23	4.76%	1,052,669
Jan 13, 2026	79.88	82.74	79.64	81.36	81.36	1.38%	799,008
Jan 12, 2026	79.49	81.09	78.75	80.25	80.25	0.04%	739,820
Jan 9, 2026	80.20	81.40	79.38	80.22	80.22	0.02%	983,627
Jan 8, 2026	81.05	82.14	79.22	80.20	80.20	-2.60%	1,487,973
Jan 7, 2026	82.25	82.69	79.18	82.34	82.34	0.09%	1,220,452
Jan 6, 2026	83.25	85.00	81.67	82.27	82.27	-2.27%	731,149
Jan 5, 2026	87.53	87.53	82.92	84.18	84.18	-3.44%	1,028,183
Jan 2, 2026	86.54	88.16	85.19	87.18	87.18	-0.18%	751,665
Dec 31, 2025	87.32	88.23	85.98	87.34	87.34	0.09%	615,725
Dec 30, 2025	87.94	88.32	86.12	87.26	87.26	-0.76%	343,984
Dec 29, 2025	88.66	89.10	87.30	87.93	87.93	-0.96%	373,123
Dec 26, 2025	88.78	89.61	87.47	88.78	88.78	-0.07%	390,105
Dec 24, 2025	88.53	89.47	87.47	88.84	88.84	0.12%	154,063
Dec 23, 2025	87.27	90.00	87.27	88.73	88.73	1.51%	329,131
Dec 22, 2025	85.33	88.13	84.88	87.41	87.41	1.58%	661,134
Dec 19, 2025	86.58	87.73	84.81	86.05	86.05	0.30%	1,736,461
Dec 18, 2025	89.35	90.02	84.11	85.79	85.79	-3.97%	2,227,544
Dec 17, 2025	91.41	92.54	88.38	89.34	89.34	-2.40%	821,795
Dec 16, 2025	93.93	94.54	90.18	91.54	91.54	-3.43%	881,124
Dec 15, 2025	95.41	96.54	94.17	94.79	94.79	-0.59%	959,980
Dec 12, 2025	92.72	95.39	91.70	95.35	95.35	3.36%	1,287,130
Dec 11, 2025	92.01	93.07	91.07	92.25	92.25	0.95%	800,761
Dec 10, 2025	88.56	91.96	88.34	91.38	91.38	3.18%	1,308,400
Dec 9, 2025	89.73	92.80	88.30	88.56	88.56	-1.87%	1,440,173
Dec 8, 2025	90.94	91.89	89.51	90.25	90.25	0.67%	1,455,768
Dec 5, 2025	87.96	90.18	87.54	89.65	89.65	2.66%	1,473,127
Dec 4, 2025	86.07	88.10	85.13	87.33	87.33	1.46%	736,770
Dec 3, 2025	85.43	87.10	84.73	86.07	86.07	1.68%	715,548
Dec 2, 2025	85.75	86.39	83.52	84.65	84.65	-1.16%	992,805
Dec 1, 2025	89.61	89.85	85.00	85.64	85.64	-4.84%	999,816
Nov 28, 2025	90.00	90.46	88.78	90.00	90.00	-0.08%	337,396
Nov 26, 2025	90.00	90.85	89.50	90.07	90.07	0.23%	1,205,233
Nov 25, 2025	88.46	89.88	87.76	89.86	89.86	2.47%	911,005

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