PRTRX Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change
Feb 5, 2026	15.12	15.12	15.12	15.12	15.12	-1.43%
Feb 4, 2026	15.34	15.34	15.34	15.34	15.34	-0.07%
Feb 3, 2026	15.35	15.35	15.35	15.35	15.35	-0.84%
Feb 2, 2026	15.48	15.48	15.48	15.48	15.48	0.39%
Jan 30, 2026	15.42	15.42	15.42	15.42	15.42	-0.71%
Jan 29, 2026	15.53	15.53	15.53	15.53	15.53	-0.32%
Jan 28, 2026	15.58	15.58	15.58	15.58	15.58	-0.38%
Jan 27, 2026	15.64	15.64	15.64	15.64	15.64	0.45%
Jan 26, 2026	15.57	15.57	15.57	15.57	15.57	0.26%
Jan 23, 2026	15.53	15.53	15.53	15.53	15.53	0.06%
Jan 22, 2026	15.52	15.52	15.52	15.52	15.52	0.39%
Jan 21, 2026	15.46	15.46	15.46	15.46	15.46	1.11%
Jan 20, 2026	15.29	15.29	15.29	15.29	15.29	-1.99%
Jan 16, 2026	15.60	15.60	15.60	15.60	15.60	-0.19%
Jan 15, 2026	15.63	15.63	15.63	15.63	15.63	0.26%
Jan 14, 2026	15.59	15.59	15.59	15.59	15.59	-0.32%
Jan 13, 2026	15.64	15.64	15.64	15.64	15.64	-0.51%
Jan 12, 2026	15.72	15.72	15.72	15.72	15.72	0.19%
Jan 9, 2026	15.69	15.69	15.69	15.69	15.69	0.51%
Jan 8, 2026	15.61	15.61	15.61	15.61	15.61	-0.26%
Jan 7, 2026	15.65	15.65	15.65	15.65	15.65	-0.38%
Jan 6, 2026	15.71	15.71	15.71	15.71	15.71	0.83%
Jan 5, 2026	15.58	15.58	15.58	15.58	15.58	0.52%
Jan 2, 2026	15.50	15.50	15.50	15.50	15.50	0.52%
Dec 31, 2025	15.42	15.42	15.42	15.42	15.42	-0.64%
Dec 30, 2025	15.52	15.52	15.52	15.52	15.52	-3.06%
Dec 29, 2025	15.53	15.53	15.53	16.01	15.53	-0.25%
Dec 26, 2025	15.57	15.57	15.57	16.05	15.57	0.12%
Dec 24, 2025	15.55	15.55	15.55	16.03	15.55	0.19%
Dec 23, 2025	15.52	15.52	15.52	16.00	15.52	0.25%
Dec 22, 2025	15.48	15.48	15.48	15.96	15.48	0.50%
Dec 19, 2025	15.40	15.40	15.40	15.88	15.40	0.51%
Dec 18, 2025	15.33	15.33	15.33	15.80	15.33	0.64%
Dec 17, 2025	15.23	15.23	15.23	15.70	15.23	-1.01%
Dec 16, 2025	15.39	15.39	15.39	15.86	15.38	-0.13%
Dec 15, 2025	15.40	15.40	15.40	15.88	15.40	-0.19%
Dec 12, 2025	15.43	15.43	15.43	15.91	15.43	-1.24%
Dec 11, 2025	15.63	15.63	15.63	16.11	15.63	0.50%
Dec 10, 2025	15.55	15.55	15.55	16.03	15.55	0.94%
Dec 9, 2025	15.40	15.40	15.40	15.88	15.40	-0.13%
Dec 8, 2025	15.42	15.42	15.42	15.90	15.42	-0.50%
Dec 5, 2025	15.50	15.50	15.50	15.98	15.50	0.13%
Dec 4, 2025	15.48	15.48	15.48	15.96	15.48	-0.13%
Dec 3, 2025	15.50	15.50	15.50	15.98	15.50	0.31%
Dec 2, 2025	15.45	15.45	15.45	15.93	15.45	0.25%
Dec 1, 2025	15.41	15.41	15.41	15.89	15.41	-0.31%
Nov 28, 2025	15.46	15.46	15.46	15.94	15.46	0.38%
Nov 26, 2025	15.40	15.40	15.40	15.88	15.40	0.76%
Nov 25, 2025	15.29	15.29	15.29	15.76	15.29	1.22%
Nov 24, 2025	15.10	15.10	15.10	15.57	15.10	1.04%