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PRTA - As of  04/30/25, 10:11:44 AM:   77 Insider Transactions.

Sector: Healthcare    Industry: Biotechnology
Prev Close:$44.37  Avg Vol(3m): 463,483  P/E: 0.00  EPS: -2.91

Email this page to a friend.    Insider Transactions for PRTA

Buy/Sell* Filed Date Subject Symbol Acquirer Pct Owned Details
B 2020-02-14 16:20:41.0 Prothena Corp plc PRTA GREAT POINT PARTNERS LLC 5.27% view
B 2020-02-14 12:00:26.0 Prothena Corp plc PRTA ORBIMED ADVISORS LLC 5.74% view
B 2020-02-05 12:16:07.0 Prothena Corp plc PRTA BlackRock Inc 8.6% view
S 2020-01-28 11:34:42.0 Prothena Corp plc PRTA WELLINGTON MANAGEMENT GROUP LLP 2.44% view
B 2019-12-13 17:30:06.0 Prothena Corp plc PRTA EcoR1 Capital 23.6% view
S 2019-09-09 16:33:01.0 Prothena Corp plc PRTA Woodford Investment Management Ltd 0.0% view
S 2019-09-09 16:29:45.0 Prothena Corp plc PRTA LF Woodford Equity Income Fund 0.0% view
B 2019-08-26 15:53:13.0 Prothena Corp plc PRTA EcoR1 Capital 23.6% view
B 2019-08-05 16:10:03.0 Prothena Corp plc PRTA GREAT POINT PARTNERS LLC 5.18% view
S 2019-07-09 14:59:09.0 Prothena Corp plc PRTA Woodford Investment Management Ltd 22.0% view
S 2019-07-09 14:56:00.0 Prothena Corp plc PRTA Woodford Patient Capital Trust Plc 0.0% view
S 2019-03-11 16:15:40.0 Prothena Corp plc PRTA SCOPIA CAPITAL MANAGEMENT LP 4.7% view
S 2019-02-14 15:37:14.0 Prothena Corp plc PRTA Woodford Investment Management Ltd 29.9% view
S 2019-02-14 15:21:55.0 Prothena Corp plc PRTA LF Woodford Equity Income Fund 19.9% view
S 2019-02-14 15:11:07.0 Prothena Corp plc PRTA Woodford Patient Capital Trust Plc 6.2% view
S 2019-02-13 12:02:30.0 Prothena Corp plc PRTA FMR LLC 12.318% view
S 2019-02-12 09:34:54.0 Prothena Corp plc PRTA WELLINGTON MANAGEMENT GROUP LLP 5.37% view
B 2019-02-06 15:16:55.0 Prothena Corp plc PRTA BlackRock Inc 8.4% view
S 2019-01-31 15:26:41.0 Prothena Corp plc PRTA VANGUARD SPECIALIZED FUNDS 2.3% view
B 2019-01-10 16:14:31.0 Prothena Corp plc PRTA SCOPIA CAPITAL MANAGEMENT LP 11.6% view
S 2018-05-10 09:02:22.0 Prothena Corp plc PRTA PRICE T ROWE ASSOCIATES INC 3.8% view
B 2018-02-13 17:10:44.0 Prothena Corp plc PRTA Woodford Investment Management Ltd 30.0% view
B 2018-02-13 17:04:33.0 Prothena Corp plc PRTA Woodford Patient Capital Trust 6.6% view
B 2018-02-13 16:59:14.0 Prothena Corp plc PRTA CF Woodford Equity Income Fund 20.0% view
B 2018-02-13 09:43:19.0 Prothena Corp plc PRTA FMR LLC 14.999% view
S 2018-02-08 11:10:35.0 Prothena Corp plc PRTA WELLINGTON MANAGEMENT GROUP LLP 8.38% view
S 2018-02-02 07:54:50.0 Prothena Corp plc PRTA VANGUARD SPECIALIZED FUNDS 5.59% view
B 2018-01-30 15:46:11.0 Prothena Corp plc PRTA BlackRock Inc 7.7% view
B 2018-01-10 16:14:01.0 Prothena Corp plc PRTA PRICE T ROWE ASSOCIATES INC 15.8% view
B 2017-02-14 17:05:10.0 Prothena Corp plc PRTA CF Woodford Equity Income Fund 19.9% view
B 2017-02-14 11:45:23.0 Prothena Corp plc PRTA FMR LLC 14.999% view
B 2017-02-13 08:45:50.0 Prothena Corp plc PRTA VANGUARD SPECIALIZED FUNDS 6.23% view
B 2017-02-10 15:41:03.0 Prothena Corp plc PRTA PRICE T ROWE ASSOCIATES INC 10.5% view
B 2017-02-09 10:57:01.0 Prothena Corp plc PRTA WELLINGTON MANAGEMENT GROUP LLP 8.75% view
S 2017-02-07 12:17:01.0 Prothena Corp plc PRTA PRICE T ROWE ASSOCIATES INC 9.6% view
B 2017-01-25 17:23:28.0 Prothena Corp plc PRTA BlackRock Inc 7.6% view
B 2016-12-12 10:55:42.0 Prothena Corp plc PRTA PRICE T ROWE ASSOCIATES INC 10.1% view
B 2016-05-20 15:48:43.0 Prothena Corp plc PRTA Woodford Investment Management LLP 27.1% view
B 2016-02-19 16:05:15.0 Prothena Corp plc PRTA Woodford Investment Management LLP 20.2% view
B 2016-02-19 15:54:07.0 Prothena Corp plc PRTA CF Woodford Equity Income Fund 15.7% view
S 2016-02-11 14:22:32.0 Prothena Corp plc PRTA WELLINGTON MANAGEMENT GROUP LLP 7.38% view
S 2016-02-09 08:20:50.0 Prothena Corp plc PRTA VANGUARD SPECIALIZED FUNDS 5.27% view
S 2016-02-08 16:18:25.0 Prothena Corp plc PRTA PRICE T ROWE ASSOCIATES INC 9.8% view
B 2016-01-27 12:24:57.0 Prothena Corp plc PRTA BlackRock Inc 6.5% view
B 2015-10-08 19:03:18.0 Prothena Corp plc PRTA Woodford Investment Management LLP 20.1% view
B 2015-09-09 17:16:45.0 Prothena Corp plc PRTA Woodford Investment Management LLP 18.7% view
B 2015-04-07 17:04:43.0 Prothena Corp plc PRTA CF Woodford Investment Fund 11.0% view
B 2015-02-25 17:41:01.0 Prothena Corp plc PRTA Woodford Investment Management LLP 10.3% view
S 2015-02-17 16:31:05.0 Prothena Corp plc PRTA RA CAPITAL MANAGEMENT 0.0% view
S 2015-02-17 16:10:23.0 Prothena Corp plc PRTA ORBIMED ADVISORS LLC 0.0% view
S 2015-02-17 14:55:34.0 Prothena Corp plc PRTA ADAGE CAPITAL PARTNERS GP LLC 0.0% view
B 2015-02-13 10:30:47.0 Prothena Corp plc PRTA FMR LLC 14.999% view
B 2015-02-12 10:53:44.0 Prothena Corp plc PRTA WELLINGTON MANAGEMENT GROUP LLP 9.16% view
B 2015-02-10 15:16:39.0 Prothena Corp plc PRTA PRICE T ROWE ASSOCIATES INC 12.5% view
B 2015-02-06 08:49:14.0 Prothena Corp plc PRTA VANGUARD SPECIALIZED FUNDS 6.07% view
B 2015-02-02 16:39:08.0 Prothena Corp plc PRTA BlackRock Inc 6.1% view
B 2014-05-02 15:28:06.0 Prothena Corp plc PRTA ADAGE CAPITAL PARTNERS GP LLC 4.73% view
B 2014-03-07 17:11:30.0 Prothena Corp plc PRTA INTEGRATED CORE STRATEGIES 4.94% view
S 2014-02-14 14:00:28.0 Prothena Corp plc PRTA RA CAPITAL MANAGEMENT 7.5% view
S 2014-02-14 09:36:14.0 Prothena Corp plc PRTA WELLINGTON MANAGEMENT CO LLP 6.5% view
B 2014-02-14 06:56:33.0 Prothena Corp plc PRTA FMR LLC 12.597% view
B 2014-02-13 17:27:52.0 Prothena Corp plc PRTA ORBIMED ADVISORS LLC 5.5% view
S 2014-02-12 14:36:55.0 Prothena Corp plc PRTA ADAGE CAPITAL PARTNERS GP LLC 4.41% view
B 2014-02-10 09:37:59.0 Prothena Corp plc PRTA PRICE T ROWE ASSOCIATES INC 10.3% view
B 2014-02-07 15:12:41.0 Prothena Corp plc PRTA PRICE T ROWE ASSOCIATES INC 6.6% view
S 2014-02-04 16:50:08.0 Prothena Corp plc PRTA PERRIGO Co plc 0.0% view
B 2014-01-27 21:28:19.0 Prothena Corp plc n/a PERRIGO Co plc 14.56% view
S 2013-10-10 08:14:48.0 Prothena Corp plc n/a JOHNSON & JOHNSON 1.0% view
B 2013-08-27 12:11:06.0 Prothena Corp plc n/a RA CAPITAL MANAGEMENT 9.3% view
S 2013-08-07 08:52:55.0 Prothena Corp plc n/a WELLINGTON MANAGEMENT CO LLP 8.66% view
B 2013-06-10 11:08:34.0 Prothena Corp plc n/a FMR LLC 11.279% view
B 2013-02-14 14:07:42.0 Prothena Corp plc n/a FMR LLC 9.605% view
S 2013-02-14 12:50:42.0 Prothena Corp plc n/a WELLINGTON MANAGEMENT CO LLP 9.77% view
B 2013-02-13 16:37:39.0 Prothena Corp plc n/a JOHNSON & JOHNSON 14.82% view
B 2013-02-11 14:21:19.0 Prothena Corp plc n/a WELLINGTON MANAGEMENT CO LLP 13.87% view
B 2013-02-01 14:46:48.0 Prothena Corp plc n/a ADAGE CAPITAL PARTNERS GP LLC 5.53% view
B 2012-12-28 16:44:04.0 Prothena Corp plc n/a ELAN CORP PLC 18.0% view
* Institutions do not report transaction buy/sell types directly. To help members better understand the transactions, this column is filled by InsiderCow's best-effort interpretations.