Protagonist Therapeutics, Inc. (PTGX)

Protagonist Therapeutics Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Jan 16, 2026	84.51	84.67	81.47	81.99	81.99	-3.26%	664,930
Jan 15, 2026	84.60	87.44	84.33	84.75	84.75	-0.56%	821,469
Jan 14, 2026	80.85	85.30	80.47	85.23	85.23	4.76%	1,052,650
Jan 13, 2026	79.88	82.74	79.64	81.36	81.36	1.38%	799,006
Jan 12, 2026	79.49	81.09	78.75	80.25	80.25	0.04%	739,777
Jan 9, 2026	80.20	81.40	79.38	80.22	80.22	0.02%	983,312
Jan 8, 2026	81.05	82.14	79.22	80.20	80.20	-2.60%	1,487,725
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
Nov 24, 2025	86.59	88.34	85.71	87.69	87.69	2.68%	872,354
Nov 21, 2025	84.24	86.67	83.64	85.40	85.40	1.43%	907,207
Nov 20, 2025	86.36	86.95	84.00	84.20	84.20	-1.09%	789,596
Nov 19, 2025	84.54	86.65	84.45	85.13	85.13	0.88%	989,454
Nov 18, 2025	84.77	86.36	83.79	84.39	84.39	-0.45%	778,785
Nov 17, 2025	82.79	85.45	82.79	84.77	84.77	0.19%	794,796
Nov 14, 2025	82.18	85.90	82.06	84.61	84.61	1.65%	755,426
Nov 13, 2025	84.84	86.02	83.17	83.24	83.24	-1.90%	711,767
Nov 12, 2025	85.41	86.90	84.50	84.85	84.85	-0.83%	1,361,095
Nov 11, 2025	83.52	86.00	83.00	85.56	85.56	2.80%	952,798
Nov 10, 2025	80.58	84.84	79.56	83.23	83.23	4.64%	1,161,463
Nov 7, 2025	80.12	80.75	76.70	79.54	79.54	-0.30%	882,432
Nov 6, 2025	77.07	79.92	77.00	79.78	79.78	2.44%	1,139,569
Nov 5, 2025	76.50	78.12	75.55	77.88	77.88	1.80%	622,953

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