Protagenic Therapeutics Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
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
Aug 12, 2026	0.36	0.36	0.36	0.36	0.36	12.50%	324
Aug 11, 2026	0.30	0.32	0.30	0.32	0.32	-8.57%	4,740
Aug 10, 2026	0.27	0.41	0.27	0.35	0.35	13.09%	48,215
Aug 7, 2026	0.31	0.31	0.31	0.31	0.31	40.68%	118
Aug 6, 2026	0.25	0.25	0.22	0.22	0.22	-14.99%	4,001
Aug 5, 2026	0.25	0.26	0.25	0.26	0.26	23.24%	9,028
Aug 4, 2026	0.18	0.21	0.18	0.21	0.21	14.54%	2,574
Aug 3, 2026	0.21	0.21	0.14	0.18	0.18	1.86%	353
Jul 31, 2026	0.18	0.18	0.18	0.18	0.18	8.02%	2,778
Jul 30, 2026	0.14	0.19	0.14	0.17	0.17	29.98%	28,225
Jul 29, 2026	0.14	0.14	0.13	0.13	0.13	-8.43%	523
Jul 28, 2026	0.25	0.25	0.14	0.14	0.14	-36.19%	34,316
Jul 27, 2026	0.24	0.29	0.14	0.22	0.22	1.76%	41,593
Jul 21, 2026	0.18	0.29	0.18	0.22	0.22	-17.17%	2,267
Jul 13, 2026	0.26	0.26	0.26	0.26	0.26	0.12%	324
Jul 10, 2026	0.14	0.26	0.14	0.26	0.26	18.18%	7,542
Jul 9, 2026	0.17	0.22	0.17	0.22	0.22	15.79%	34,113
Jul 8, 2026	0.18	0.20	0.18	0.19	0.19	-5.00%	4,102
Jul 7, 2026	0.22	0.22	0.20	0.20	0.20	-9.87%	8,871
Jul 6, 2026	0.23	0.23	0.22	0.22	0.22	-3.52%	2,528
Jul 2, 2026	0.45	0.45	0.20	0.23	0.23	-34.29%	102,510
Jul 1, 2026	0.36	0.39	0.35	0.35	0.35	-10.74%	1,998
Jun 29, 2026	0.41	0.41	0.37	0.39	0.39	8.95%	11,051