Protagonist Therapeutics, Inc. (PTGX)

NASDAQ: PTGX · Real-Time Price · USD

125.17

+2.59 (2.11%)

At close: Jul 1, 2026, 4:00 PM EDT

124.67

-0.50 (-0.40%)

Pre-market: Jul 2, 2026, 4:32 AM EDT

Protagonist Therapeutics Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Jul 1, 2026	122.96	126.04	122.48	125.17	125.17	2.11%	496,518
Jun 30, 2026	122.04	124.72	119.57	122.58	122.58	0.78%	556,980
Jun 29, 2026	121.34	126.59	118.27	121.63	121.63	-0.21%	740,175
Jun 26, 2026	122.00	123.43	118.31	121.88	121.88	-0.61%	2,545,028
Jun 25, 2026	122.31	126.25	121.48	122.63	122.63	0.39%	1,037,823
Jun 24, 2026	119.38	124.80	118.81	122.15	122.15	2.68%	1,122,424
Jun 23, 2026	114.66	119.85	114.56	118.96	118.96	3.42%	659,283
Jun 22, 2026	113.24	116.57	113.24	115.03	115.03	1.92%	1,193,423
Jun 18, 2026	112.88	114.49	111.17	112.86	112.86	1.27%	1,533,652
Jun 17, 2026	110.84	113.47	110.11	111.44	111.44	0.72%	742,534
Jun 16, 2026	112.83	113.66	108.53	110.64	110.64	-1.62%	504,794
Jun 15, 2026	109.10	112.77	109.10	112.46	112.46	2.44%	536,301
Jun 12, 2026	109.85	111.78	109.60	109.78	109.78	-0.01%	448,850
Jun 11, 2026	106.28	110.82	106.28	109.79	109.79	3.80%	564,250
Jun 10, 2026	105.50	111.45	104.89	105.77	105.77	-0.09%	770,494
Jun 9, 2026	99.76	106.48	98.08	105.87	105.87	8.00%	878,601
Jun 8, 2026	98.95	101.16	96.70	98.03	98.03	0.67%	567,714
Jun 5, 2026	103.14	103.29	96.38	97.38	97.38	-5.26%	887,396
Jun 4, 2026	96.39	103.55	96.14	102.79	102.79	7.74%	658,834
Jun 3, 2026	93.93	95.61	93.00	95.41	95.41	2.34%	579,220
Jun 2, 2026	93.84	97.71	92.75	93.23	93.23	-1.78%	723,588
Jun 1, 2026	97.88	98.50	93.50	94.92	94.92	-4.66%	817,044
May 29, 2026	100.64	102.40	98.84	99.56	99.56	-0.85%	597,778
May 28, 2026	102.74	103.71	99.43	100.41	100.41	-1.76%	551,512
May 27, 2026	100.05	102.49	98.94	102.21	102.21	2.23%	404,793
May 26, 2026	100.03	100.80	97.93	99.98	99.98	0.80%	360,762
May 22, 2026	102.01	102.42	98.89	99.19	99.19	-2.76%	393,915
May 21, 2026	101.13	103.43	98.60	102.01	102.01	1.12%	402,918
May 20, 2026	99.03	101.90	98.37	100.88	100.88	2.55%	371,678
May 19, 2026	100.25	100.26	96.69	98.37	98.37	-2.35%	492,707
May 18, 2026	103.22	104.16	100.58	100.74	100.74	-1.41%	447,230
May 15, 2026	104.22	104.39	101.72	102.18	102.18	-3.19%	560,751
May 14, 2026	104.31	105.72	101.62	105.55	105.55	1.61%	426,527
May 13, 2026	99.58	104.20	98.22	103.88	103.88	3.93%	518,200
May 12, 2026	103.50	103.66	98.36	99.95	99.95	-3.43%	645,725
May 11, 2026	100.14	105.33	99.94	103.50	103.50	4.17%	572,035
May 8, 2026	98.51	100.15	97.00	99.36	99.36	0.52%	505,003
May 7, 2026	103.55	104.68	98.53	98.85	98.85	-4.92%	836,858
May 6, 2026	103.00	105.03	98.95	103.97	103.97	4.80%	989,856
May 5, 2026	100.32	101.37	97.45	99.21	99.21	-0.31%	398,043
May 4, 2026	98.00	101.08	98.00	99.52	99.52	1.17%	457,421
May 1, 2026	99.16	99.47	97.08	98.37	98.37	-0.61%	447,698
Apr 30, 2026	99.00	99.76	97.20	98.97	98.97	0.46%	577,600
Apr 29, 2026	100.27	100.35	98.11	98.52	98.52	-2.66%	576,818
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