Protagenic Therapeutics Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Jun 8, 2026	0.52	0.53	0.52	0.53	0.53	5.28%	491
Jun 5, 2026	0.50	0.50	0.50	0.50	0.50	-	503
Jun 4, 2026	0.53	0.62	0.50	0.50	0.50	-5.66%	6,939
Jun 3, 2026	0.50	0.53	0.50	0.53	0.53	6.00%	559
Jun 2, 2026	0.50	0.55	0.50	0.50	0.50	0.24%	4,227
Jun 1, 2026	0.40	0.55	0.40	0.50	0.50	-8.14%	4,680
May 28, 2026	0.40	0.54	0.40	0.54	0.54	4.26%	2,033
May 27, 2026	0.53	0.53	0.40	0.52	0.52	-4.61%	3,221
May 26, 2026	0.50	0.65	0.43	0.55	0.55	-11.58%	6,421
May 21, 2026	0.62	0.62	0.62	0.62	0.62	-4.99%	238
May 20, 2026	0.45	0.65	0.44	0.65	0.65	-	4,138
May 18, 2026	0.49	0.65	0.49	0.65	0.65	-	433
May 15, 2026	0.65	0.65	0.65	0.65	0.65	-	663
May 14, 2026	0.65	0.65	0.65	0.65	0.65	32.66%	329
May 13, 2026	0.49	0.49	0.49	0.49	0.49	1.24%	400
May 12, 2026	0.65	0.65	0.43	0.48	0.48	-25.55%	34,124
May 11, 2026	0.82	0.90	0.53	0.65	0.65	-17.72%	5,637
May 8, 2026	0.64	0.80	0.62	0.79	0.79	36.21%	7,553
May 7, 2026	0.53	0.60	0.53	0.58	0.58	5.45%	2,868
May 6, 2026	0.53	0.55	0.53	0.55	0.55	2.23%	237
May 5, 2026	0.72	0.72	0.54	0.54	0.54	-25.27%	11,030
May 4, 2026	0.74	0.74	0.72	0.72	0.72	-10.01%	440
May 1, 2026	0.84	0.84	0.80	0.80	0.80	-9.09%	3,350
Apr 30, 2026	0.88	0.88	0.88	0.88	0.88	-0.01%	2,090
Apr 29, 2026	1.08	1.20	0.88	0.88	0.88	-18.51%	11,369
Apr 28, 2026	0.99	1.08	0.95	1.08	1.08	11.22%	32,180
Apr 27, 2026	0.86	1.00	0.86	0.97	0.97	19.88%	35,864
Apr 24, 2026	0.73	0.82	0.73	0.81	0.81	11.91%	21,292
Apr 23, 2026	0.69	0.77	0.67	0.72	0.72	4.93%	13,055
Apr 22, 2026	0.66	0.69	0.66	0.69	0.69	4.52%	3,077
Apr 21, 2026	0.53	0.68	0.53	0.66	0.66	20.02%	14,936
Apr 20, 2026	0.57	0.57	0.53	0.55	0.55	-3.49%	6,302
Apr 17, 2026	0.56	0.57	0.54	0.57	0.57	2.67%	2,423
Apr 16, 2026	0.54	0.56	0.54	0.56	0.56	4.72%	1,666
Apr 15, 2026	0.56	0.57	0.53	0.53	0.53	-5.21%	4,660
Apr 14, 2026	0.55	0.56	0.55	0.56	0.56	1.66%	1,472
Apr 13, 2026	0.59	0.59	0.55	0.55	0.55	-5.98%	5,499
Apr 10, 2026	0.65	0.65	0.59	0.59	0.59	-15.19%	1,407
Apr 8, 2026	0.53	0.70	0.53	0.69	0.69	30.15%	9,451
Apr 7, 2026	0.53	0.70	0.53	0.53	0.53	-	2,631
Apr 6, 2026	0.53	0.53	0.53	0.53	0.53	-	495
Apr 2, 2026	0.57	0.72	0.52	0.53	0.53	-7.03%	7,284
Apr 1, 2026	0.52	0.68	0.52	0.57	0.57	-15.86%	1,311
Mar 31, 2026	0.63	0.73	0.63	0.68	0.68	8.40%	3,561
Mar 30, 2026	0.59	0.68	0.59	0.63	0.63	20.19%	1,464
Mar 27, 2026	0.69	0.74	0.52	0.52	0.52	-30.67%	1,220
Mar 26, 2026	0.50	0.75	0.50	0.75	0.75	7.14%	6,238
Mar 25, 2026	0.72	0.76	0.60	0.70	0.70	-	12,865
Mar 24, 2026	0.70	0.70	0.70	0.70	0.70	-2.78%	354
Mar 23, 2026	0.68	0.72	0.68	0.72	0.72	9.09%	457