Prothena Corporation plc - PRTA - Stock Historical Data & Price

Date Range:

Date	Open	Close	Adj Close	High	Low	Volume
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
September 29, 2025	9.43	9.76	9.76	9.82	9.21	946,535
September 26, 2025	9.29	9.41	9.41	9.46	9.02	715,256
September 25, 2025	9.2	9.36	9.36	9.56	9.04	1.57M
September 24, 2025	8.32	9.32	9.32	9.34	8.3	1.12M
September 23, 2025	8.28	8.31	8.31	8.35	8.14	404,700
September 22, 2025	8.12	8.29	8.29	8.43	8.02	511,942
September 19, 2025	8.2	8.07	8.07	8.23	8.07	910,700
September 18, 2025	8.18	8.18	8.18	8.35	8.05	459,057
September 17, 2025	8.19	8.06	8.06	8.39	8.04	507,619
September 16, 2025	8.12	8.16	8.16	8.36	8.12	362,500
September 15, 2025	8.18	8.16	8.16	8.35	8.1	713,700
September 12, 2025	8.43	8.21	8.21	8.49	8.2	551,100
September 11, 2025	8.24	8.43	8.43	8.5	8.19	711,934
September 10, 2025	8.34	8.31	8.31	8.47	8.2	518,651
September 09, 2025	8.5	8.34	8.34	8.5	8.1	916,203
September 08, 2025	8.52	8.49	8.49	8.62	8.3	586,515
September 05, 2025	8.24	8.55	8.55	8.59	8.21	1.13M
September 04, 2025	8.45	8.21	8.21	8.46	8.11	961,600
September 03, 2025	8.24	8.39	8.39	8.47	8.16	1.21M
September 02, 2025	8.17	8.27	8.27	8.43	8.06	1.05M
August 29, 2025	8.27	8.2	8.2	8.34	8.08	903,119
August 28, 2025	8.22	8.24	8.24	8.58	8.05	1.69M
August 27, 2025	8.36	8.56	8.56	8.73	8.35	1.02M
August 26, 2025	8.35	8.35	8.35	8.56	8.3	1.65M
August 25, 2025	8.76	8.38	8.38	8.79	8.35	613,200
August 22, 2025	8.63	8.77	8.77	8.97	8.52	1.24M
August 21, 2025	8.41	8.56	8.56	8.57	8.32	858,008
August 20, 2025	8.5	8.52	8.52	8.6	8.28	639,200
August 19, 2025	8.51	8.52	8.52	8.7	8.35	829,930
August 18, 2025	8.36	8.53	8.53	8.66	8.3	1.16M
August 15, 2025	8.11	8.25	8.25	8.34	8	1.13M

Prothena Corporation plc (PRTA) NASDAQ