Protagenic Therapeutics Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Nov 5, 2026	0.63	0.63	0.63	0.63	0.63	-	147
Nov 4, 2026	0.63	0.63	0.63	0.63	0.63	-3.08%	139
Nov 3, 2026	0.65	0.65	0.65	0.65	0.65	4.84%	1,121
Nov 2, 2026	0.62	0.62	0.62	0.62	0.62	-2.81%	1,006
Oct 30, 2026	0.64	0.64	0.64	0.64	0.64	-1.20%	2,663
Oct 29, 2026	0.65	0.65	0.64	0.65	0.65	-1.18%	1,740
Oct 27, 2026	0.65	0.65	0.65	0.65	0.65	0.86%	101
Oct 26, 2026	0.72	0.72	0.65	0.65	0.65	-10.02%	3,466
Oct 23, 2026	0.72	0.72	0.72	0.72	0.72	-2.05%	897
Oct 22, 2026	0.74	0.74	0.74	0.74	0.74	2.08%	522
Oct 21, 2026	0.72	0.72	0.72	0.72	0.72	-4.00%	104
Oct 19, 2026	0.76	0.76	0.75	0.75	0.75	-	1,262
Oct 15, 2026	0.75	0.75	0.75	0.75	0.75	-6.25%	161
Oct 14, 2026	0.80	0.80	0.80	0.80	0.80	-0.74%	763
Oct 13, 2026	0.81	0.81	0.81	0.81	0.81	-	1,055
Oct 12, 2026	0.75	0.81	0.75	0.81	0.81	4.68%	1,020
Oct 6, 2026	0.79	0.79	0.77	0.77	0.77	-0.50%	1,963
Oct 2, 2026	0.78	0.78	0.77	0.77	0.77	-0.78%	1,202
Oct 1, 2026	0.80	0.80	0.78	0.78	0.78	-3.70%	5,651
Sep 30, 2026	0.83	0.83	0.81	0.81	0.81	0.27%	905
Sep 29, 2026	0.82	0.82	0.81	0.81	0.81	3.56%	1,244
Sep 28, 2026	0.77	0.78	0.77	0.78	0.78	0.79%	304
Sep 25, 2026	0.81	0.81	0.77	0.77	0.77	-5.20%	4,131
Sep 24, 2026	0.82	0.82	0.82	0.82	0.82	-5.07%	1,303
Sep 23, 2026	0.87	0.87	0.86	0.86	0.86	-	2,428
Sep 22, 2026	0.87	0.88	0.86	0.86	0.86	-5.08%	835
Sep 21, 2026	0.91	0.93	0.91	0.91	0.91	-0.89%	3,379
Sep 18, 2026	0.73	0.91	0.73	0.91	0.91	25.43%	33,536
Sep 17, 2026	0.77	0.77	0.73	0.73	0.73	-13.24%	10,254
Sep 16, 2026	0.77	0.84	0.77	0.84	0.84	6.33%	3,260
Sep 15, 2026	0.81	0.81	0.79	0.79	0.79	-4.82%	11,355
Sep 14, 2026	0.81	0.85	0.81	0.83	0.83	-4.73%	6,679
Sep 11, 2026	0.81	0.87	0.81	0.87	0.87	-	429
Sep 10, 2026	0.90	0.90	0.81	0.87	0.87	-5.30%	3,111
Sep 9, 2026	0.91	0.94	0.85	0.92	0.92	-10.32%	28,099
Sep 8, 2026	1.00	1.09	0.90	1.03	1.03	-3.22%	25,817
Sep 4, 2026	0.95	1.06	0.95	1.06	1.06	6.00%	1,682
Sep 3, 2026	1.02	1.02	0.95	1.00	1.00	-4.76%	10,691
Sep 2, 2026	1.19	1.19	1.05	1.05	1.05	-11.76%	17,737
Sep 1, 2026	1.23	1.24	1.13	1.19	1.19	-0.83%	26,153
Aug 31, 2026	1.11	1.23	1.11	1.20	1.20	22.44%	30,102
Aug 28, 2026	0.94	1.11	0.94	0.98	0.98	4.81%	45,786
Aug 27, 2026	0.85	0.94	0.77	0.94	0.94	5.06%	36,629
Aug 26, 2026	0.95	1.01	0.86	0.89	0.89	-6.31%	17,998
Aug 25, 2026	1.18	1.20	0.85	0.95	0.95	-12.84%	43,438
Aug 24, 2026	0.85	1.32	0.85	1.09	1.09	36.06%	115,555
Aug 21, 2026	0.65	0.91	0.63	0.80	0.80	33.52%	140,562
Aug 20, 2026	0.40	0.61	0.40	0.60	0.60	71.43%	40,660
Aug 19, 2026	0.34	0.37	0.34	0.35	0.35	-2.78%	4,103
Aug 14, 2026	0.36	0.36	0.32	0.36	0.36	-	2,477