Protagonist Therapeutics, Inc. (PTGX)

Protagonist Therapeutics Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Apr 30, 2026	99.00	99.76	97.20	98.97	98.97	0.46%	575,916
Apr 29, 2026	100.27	100.35	98.11	98.52	98.52	-2.66%	576,697
Apr 28, 2026	99.50	102.47	97.79	101.21	101.21	2.74%	663,207
Apr 27, 2026	100.44	103.42	98.31	98.51	98.51	-1.49%	994,861
Apr 24, 2026	102.54	105.94	98.91	100.00	100.00	-2.55%	778,708
Apr 23, 2026	106.34	106.98	102.26	102.62	102.62	-2.78%	651,593
Apr 22, 2026	106.43	107.00	103.93	105.55	105.55	-0.32%	345,935
Apr 21, 2026	104.94	106.45	103.64	105.89	105.89	0.40%	494,947
Apr 20, 2026	105.47	106.46	104.00	105.47	105.47	-0.48%	540,470
Apr 17, 2026	105.57	106.90	103.51	105.98	105.98	2.17%	1,006,314
Apr 16, 2026	103.59	104.53	102.46	103.73	103.73	-1.62%	417,822
Apr 15, 2026	105.96	106.66	103.02	105.44	105.44	0.69%	770,162
Apr 14, 2026	97.58	104.97	97.58	104.72	104.72	7.33%	849,466
Apr 13, 2026	98.61	101.04	95.40	97.57	97.57	-1.26%	1,088,562
Apr 10, 2026	104.28	104.28	98.40	98.82	98.82	-5.06%	577,290
Apr 9, 2026	101.45	105.11	101.45	104.09	104.09	1.95%	699,455
Apr 8, 2026	104.28	105.88	101.62	102.09	102.09	-1.60%	819,198
Apr 7, 2026	103.43	103.96	101.31	103.75	103.75	0.84%	785,703
Apr 6, 2026	103.72	104.46	101.84	102.89	102.89	-0.86%	528,510
Apr 2, 2026	101.59	104.31	101.59	103.78	103.78	0.11%	601,602
Apr 1, 2026	105.51	107.84	102.70	103.67	103.67	-1.64%	583,867
Mar 31, 2026	101.23	105.99	101.06	105.40	105.40	5.54%	944,904
Mar 30, 2026	99.04	102.76	98.08	99.87	99.87	0.91%	884,399
Mar 27, 2026	101.27	101.92	97.89	98.97	98.97	-3.13%	785,508
Mar 26, 2026	103.25	105.69	102.01	102.17	102.17	-2.05%	1,045,276
Mar 25, 2026	99.42	105.00	97.16	104.31	104.31	3.90%	812,176
Mar 24, 2026	97.16	100.98	97.16	100.39	100.39	1.88%	940,176
Mar 23, 2026	100.00	102.06	98.15	98.54	98.54	-0.33%	925,423
Mar 20, 2026	101.47	101.80	97.83	98.87	98.87	-2.76%	2,029,217
Mar 19, 2026	98.45	105.69	98.35	101.68	101.68	4.73%	1,919,749
Mar 18, 2026	97.04	99.50	90.58	97.09	97.09	-0.14%	1,981,543
Mar 17, 2026	96.70	99.31	96.43	97.23	97.23	0.50%	799,232
Mar 16, 2026	93.28	97.08	92.61	96.75	96.75	4.75%	695,757
Mar 13, 2026	96.91	98.30	90.92	92.36	92.36	-3.21%	896,180
Mar 12, 2026	95.01	96.39	93.67	95.42	95.42	-1.10%	750,591
Mar 11, 2026	96.84	98.32	95.97	96.48	96.48	-0.59%	788,741
Mar 10, 2026	96.02	98.21	95.40	97.05	97.05	0.40%	856,024
Mar 9, 2026	91.14	97.54	91.14	96.66	96.66	4.96%	727,214
Mar 6, 2026	89.96	92.97	87.82	92.09	92.09	0.74%	572,368
Mar 5, 2026	94.54	94.54	90.35	91.41	91.41	-3.61%	677,477
Mar 4, 2026	91.94	95.43	91.03	94.83	94.83	3.87%	782,718
Mar 3, 2026	92.56	93.51	90.02	91.30	91.30	-3.12%	529,537
Mar 2, 2026	92.08	94.89	90.99	94.24	94.24	2.35%	942,703
Feb 27, 2026	88.18	92.23	87.15	92.08	92.08	4.17%	936,969
Feb 26, 2026	87.50	88.83	85.60	88.39	88.39	1.48%	706,162
Feb 25, 2026	87.50	88.46	86.26	87.10	87.10	-0.33%	285,861
Feb 24, 2026	86.72	89.59	86.00	87.39	87.39	0.92%	668,518
Feb 23, 2026	82.32	86.85	77.00	86.59	86.59	4.63%	710,805
Feb 20, 2026	83.26	83.69	80.72	82.76	82.76	-0.40%	577,977
Feb 19, 2026	81.88	83.22	80.59	83.09	83.09	0.12%	384,567

Stock Analysis Pro

Upgrade now for unlimited access to all data and tools.

Market Newsletter

Get a daily email with the top market news in bullet point format.