Protagenic Therapeutics, Inc. - PTIX - Stock Historical Data & Price

Date Range:

Date	Open	Close	Adj Close	High	Low	Volume
February 20, 2026	0.42	0.42	0.42	0.42	0.42	400
February 19, 2026	0.39	0.47	0.47	0.51	0.35	11,900
February 18, 2026	0.35	0.42	0.42	0.49	0.35	7,700
February 17, 2026	0.4	0.35	0.35	0.4	0.35	2,720
February 13, 2026	0.4	0.4	0.4	0.4	0.4	9,000
February 12, 2026	0.46	0.47	0.47	0.47	0.25	41,800
February 11, 2026	0.42	0.49	0.49	0.49	0.42	12,700
February 10, 2026	0.51	0.38	0.38	0.51	0.36	8,600
February 09, 2026	0.36	0.36	0.36	0.36	0.36	1,595
February 06, 2026	0.4	0.4	0.4	0.41	0.37	17,800
February 05, 2026	0.47	0.4	0.4	0.5	0.4	6,700
February 04, 2026	0.45	0.49	0.49	0.51	0.31	17,800
February 03, 2026	0.47	0.49	0.49	0.49	0.47	14,700
February 02, 2026	0.47	0.49	0.49	0.51	0.47	28,900
January 30, 2026	0.3	0.48	0.48	0.48	0.3	1,400
January 29, 2026	0.42	0.5	0.5	0.5	0.32	3,600
January 28, 2026	0.45	0.36	0.36	0.45	0.36	14,600
January 27, 2026	0.5	0.55	0.55	0.57	0.5	8,600
January 26, 2026	0.45	0.46	0.46	0.57	0.45	22,000
January 23, 2026	0.55	0.57	0.57	0.57	0.44	2,400
January 22, 2026	0.44	0.58	0.58	0.59	0.44	10,900
January 21, 2026	0.5	0.43	0.43	0.57	0.43	6,100
January 20, 2026	0.53	0.5	0.5	0.54	0.41	5,300
January 16, 2026	0.63	0.59	0.59	0.65	0.54	6,400
January 15, 2026	0.59	0.54	0.54	0.59	0.54	2,000
January 14, 2026	0.51	0.54	0.54	0.65	0.51	3,241
January 13, 2026	0.54	0.62	0.62	0.66	0.5	11,200
January 12, 2026	0.62	0.55	0.55	0.65	0.47	22,200
January 09, 2026	0.66	0.62	0.62	0.72	0.59	44,600
January 08, 2026	0.62	0.66	0.66	0.66	0.54	34,400
January 07, 2026	0.55	0.62	0.62	0.72	0.55	83,900
January 06, 2026	0.52	0.54	0.54	0.63	0.52	124,800
January 05, 2026	0.32	0.57	0.57	0.61	0.26	580,900
January 02, 2026	1.26	0.74	0.74	1.27	0.7	1.92M
December 31, 2025	1.36	1.3	1.3	1.48	1.3	74,200
December 30, 2025	1.44	1.36	1.36	1.5	1.32	49,838
December 29, 2025	1.36	1.49	1.49	1.5	1.29	59,731
December 26, 2025	1.14	1.33	1.33	1.35	1.13	67,968
December 24, 2025	1.21	1.15	1.15	1.22	1.12	45,300
December 23, 2025	1.25	1.24	1.24	1.25	1.24	11,235
December 22, 2025	1.18	1.24	1.24	1.26	1.17	60,900
December 19, 2025	1.3	1.19	1.19	1.31	1.19	49,619
December 18, 2025	1.41	1.29	1.29	1.41	1.25	66,402
December 17, 2025	1.48	1.37	1.37	1.52	1.34	56,393
December 16, 2025	1.55	1.52	1.52	1.56	1.48	43,491
December 15, 2025	1.62	1.57	1.57	1.63	1.53	43,346
December 12, 2025	1.56	1.65	1.65	1.68	1.55	114,000
December 11, 2025	1.6	1.58	1.58	1.6	1.54	43,100
December 10, 2025	1.58	1.68	1.68	1.7	1.54	100,135
December 09, 2025	1.61	1.62	1.62	1.65	1.46	564,400
December 08, 2025	1.75	1.65	1.65	1.77	1.52	180,510
December 05, 2025	1.71	1.67	1.67	1.8	1.6	83,542
December 04, 2025	1.76	1.68	1.68	1.81	1.67	124,574
December 03, 2025	1.82	1.8	1.8	1.89	1.73	50,300
December 02, 2025	1.9	1.89	1.89	1.97	1.86	85,513
December 01, 2025	2	1.95	1.95	2.04	1.84	151,757
November 28, 2025	1.91	2.13	2.13	2.13	1.91	128,740
November 26, 2025	2.27	2.23	2.23	2.38	2.23	85,925
November 25, 2025	2.35	2.23	2.23	2.35	2.18	89,505
November 24, 2025	2.12	2.27	2.27	2.35	2.1	113,627

Protagenic Therapeutics, Inc. (PTIX) NASDAQ