Prothena Corporation plc - PRTA - Stock Historical Data & Price

Date Range:

Date	Open	Close	Adj Close	High	Low	Volume
December 23, 2025	9.53	9.49	9.49	9.59	9.29	703,400
December 22, 2025	9.16	9.68	9.68	9.78	9.07	688,017
December 19, 2025	9.38	9.21	9.21	9.56	9.11	4.13M
December 18, 2025	9.46	9.38	9.38	9.67	9.32	547,631
December 17, 2025	9.78	9.43	9.43	9.91	9.39	508,027
December 16, 2025	9.95	9.75	9.75	10.16	9.52	638,928
December 15, 2025	10.37	9.97	9.97	10.5	9.94	852,645
December 12, 2025	10.4	10.36	10.36	10.49	10.2	477,695
December 11, 2025	9.93	10.33	10.33	10.5	9.81	693,400
December 10, 2025	10.28	9.87	9.87	10.32	9.69	961,400
December 09, 2025	10.7	10.32	10.32	10.8	10.23	532,200
December 08, 2025	11.2	10.73	10.73	11.3	10.71	561,900
December 05, 2025	11.18	11.07	11.07	11.48	10.98	434,700
December 04, 2025	11.04	11.16	11.19	11.57	10.95	1.13M
December 03, 2025	10.4	11.17	11.17	11.48	10.31	777,500
December 02, 2025	10.29	10.35	10.35	10.53	10.14	615,124
December 01, 2025	10.98	10.27	10.27	11.13	10.22	648,509
November 28, 2025	10.52	10.75	10.75	10.83	10.46	288,728
November 26, 2025	10.48	10.43	10.43	10.59	10.37	451,420
November 25, 2025	10.5	10.5	10.5	10.62	10.3	515,600
November 24, 2025	10.55	10.4	10.4	10.91	10.29	776,169
November 21, 2025	10.02	10.48	10.48	10.69	9.9	461,200
November 20, 2025	10.12	10.05	10.05	10.51	9.99	460,500
November 19, 2025	10.29	9.99	9.99	10.49	9.97	479,700
November 18, 2025	10.18	10.36	10.36	10.42	9.96	427,945
November 17, 2025	9.94	10.25	10.25	10.32	9.75	827,245
November 14, 2025	10.04	9.93	9.93	10.33	9.93	504,500
November 13, 2025	10.83	10.18	10.18	10.83	10.12	679,600
November 12, 2025	10.36	10.85	10.85	10.9	10.22	686,400
November 11, 2025	10.39	10.48	10.48	10.75	10.14	603,600
November 10, 2025	10.9	10.53	10.53	11.09	10.47	694,728
November 07, 2025	10.49	10.56	10.56	10.96	9.72	928,400
November 06, 2025	10.3	10.08	10.08	10.5	10.02	557,222
November 05, 2025	10.17	10.27	10.27	10.45	10	535,313
November 04, 2025	10.4	10.26	10.26	10.56	10.16	600,351
November 03, 2025	10.76	10.54	10.54	11.17	10.41	612,500
October 31, 2025	10.54	10.75	10.75	10.79	10.4	479,954
October 30, 2025	10.63	10.48	10.48	10.82	10.35	381,500
October 29, 2025	10.6	10.65	10.65	10.8	10.34	596,013
October 28, 2025	11.14	10.54	10.54	11.69	10.4	969,343
October 27, 2025	9.98	10.37	10.37	10.4	9.95	405,387
October 24, 2025	9.8	9.82	9.82	10.02	9.71	362,606
October 23, 2025	9.88	9.75	9.75	9.97	9.72	349,011
October 22, 2025	10.22	9.88	9.88	10.35	9.72	429,435
October 21, 2025	10.37	10.22	10.22	10.61	10.18	289,900
October 20, 2025	10.05	10.37	10.37	10.55	9.96	558,918
October 17, 2025	9.99	9.92	9.92	10.23	9.61	777,390
October 16, 2025	10.76	10.09	10.09	10.9	10.03	624,900
October 15, 2025	10.12	10.66	10.66	10.72	10.12	801,962
October 14, 2025	10.32	10.12	10.12	10.32	10.03	392,100
October 13, 2025	10.03	10.35	10.35	10.35	10	703,200
October 10, 2025	10.34	10.05	10.05	10.45	9.98	734,100
October 09, 2025	10.43	10.3	10.3	10.65	10.28	801,307
October 08, 2025	10.27	10.35	10.35	10.54	10.13	650,937
October 07, 2025	10.12	10.17	10.17	10.37	9.92	1.03M
October 06, 2025	10	9.86	9.86	10.09	9.77	343,503
October 03, 2025	10.02	9.92	9.92	10.16	9.58	852,906
October 02, 2025	9.95	9.99	9.99	10.22	9.85	767,600
October 01, 2025	9.79	9.92	9.92	10.46	9.78	965,862
September 30, 2025	9.73	9.76	9.76	9.85	9.5	989,151

Prothena Corporation plc (PRTA) NASDAQ