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PRTA - As of  05/16/24, 01:29:11 AM:   104 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 2020-02-12 12:04:35.0 POWELL INDUSTRIES INC POWL VANGUARD GROUP INC 4.91% view
S 2020-02-12 11:45:24.0 POWELL INDUSTRIES INC POWL DIMENSIONAL FUND ADVISORS LP 8.15% view
S 2020-02-04 12:30:33.0 POWELL INDUSTRIES INC POWL DEPRINCE RACE & ZOLLO INC 0.9% view
B 2019-02-12 06:37:36.0 POWELL INDUSTRIES INC POWL DIMENSIONAL FUND ADVISORS LP 8.32% view
B 2019-01-31 14:08:45.0 POWELL INDUSTRIES INC POWL BlackRock Inc 5.3% view
B 2018-04-06 09:57:52.0 POWELL INDUSTRIES INC POWL BlackRock Inc 7.3% view
B 2018-02-08 11:28:49.0 POWELL INDUSTRIES INC POWL HEARTLAND ADVISORS INC 5.0% view
S 2018-01-23 17:13:59.0 POWELL INDUSTRIES INC POWL FMR LLC 0.0% view
B 2017-10-10 08:55:01.0 POWELL INDUSTRIES INC POWL RUTABAGA CAPITAL MANAGEMENT LLC 0.19% view
B 2017-02-14 11:45:12.0 POWELL INDUSTRIES INC POWL DIMENSIONAL FUND ADVISORS LP 5.98% view
S 2017-01-25 17:23:22.0 POWELL INDUSTRIES INC POWL FRANKLIN RESOURCES INC 0.0% view
B 2016-02-03 13:41:12.0 POWELL INDUSTRIES INC POWL BlackRock Inc 7.5% view
S 2015-08-24 15:02:03.0 POWELL INDUSTRIES INC POWL FMR LLC 7.431% view
S 2015-02-05 13:31:10.0 POWELL INDUSTRIES INC POWL ROYCE & ASSOCIATES LLC 5.1% view
S 2014-02-14 06:55:32.0 POWELL INDUSTRIES INC POWL FMR LLC 6.0% view
B 2014-01-30 11:24:30.0 POWELL INDUSTRIES INC POWL ROYCE & ASSOCIATES LLC 6.91% view
B 2013-02-14 14:08:03.0 POWELL INDUSTRIES INC POWL FRANKLIN RESOURCES INC 7.1% view
S 2013-02-05 10:07:11.0 POWELL INDUSTRIES INC POWL ROYCE & ASSOCIATES LLC 6.17% view
S 2012-07-06 10:29:16.0 POWELL INDUSTRIES INC POWL BlackRock Inc 6.07% view
B 2012-02-09 12:22:53.0 POWELL INDUSTRIES INC POWL FRANKLIN RESOURCES INC 7.0% view
B 2011-02-08 08:50:23.0 POWELL INDUSTRIES INC POWL BlackRock Inc 7.48% view
B 2010-03-09 15:56:54.0 POWELL INDUSTRIES INC POWL ROYCE & ASSOCIATES LLC 10.12% view
S 2009-01-27 13:49:37.0 POWELL INDUSTRIES INC powl ROYCE & ASSOCIATES LLC n/a view
S 2008-02-04 12:48:17.0 POWELL INDUSTRIES INC powl ROYCE & ASSOCIATES LLC 9.95% view
S 2007-02-14 11:22:28.0 POWELL INDUSTRIES INC powl WELLINGTON MANAGEMENT CO LLP 5.09% view
S 2007-02-08 14:16:10.0 POWELL INDUSTRIES INC powl NATIONWIDE TRUST CO FSB 5.0404% view
B 2007-01-12 14:34:29.0 POWELL INDUSTRIES INC powl VAN DEN BERG MANAGEMENT INC 4.93% view
S 2006-09-18 16:10:03.0 POWELL INDUSTRIES INC powl VAN DEN BERG MANAGEMENT INC 4.93% view
S 2006-02-03 00:00:00.0 POWELL INDUSTRIES INC powl NATIONWIDE TRUST CO FSB 12.03% view
B 2006-01-10 00:00:00.0 POWELL INDUSTRIES INC powl VAN DEN BERG MANAGEMENT INC 5.9% view
S 2005-02-14 00:00:00.0 POWELL INDUSTRIES INC powl ROYCE & ASSOCIATES LLC 12.29% view
S 2005-01-12 00:00:00.0 POWELL INDUSTRIES INC powl FLEETBOSTON FINANCIAL CORP 3.2% view
B 2004-02-12 00:00:00.0 POWELL INDUSTRIES INC powl POWELL BONNIE L 7.776% view
B 2004-02-12 00:00:00.0 POWELL INDUSTRIES INC powl ROYCE & ASSOCIATES LLC 12.33% view
B 2004-01-20 00:00:00.0 POWELL INDUSTRIES INC powl POWELL THOMAS W 28.9% view
B 2003-02-14 00:00:00.0 POWELL INDUSTRIES INC powl WELLINGTON MANAGEMENT CO LLP 6.14% view
B 2003-02-06 00:00:00.0 POWELL INDUSTRIES INC powl ROYCE & ASSOCIATES LLC 12.06% view
B 2002-10-10 00:00:00.0 POWELL INDUSTRIES INC powl ROYCE & ASSOCIATES LLC 11.45% view
S 2002-03-08 00:00:00.0 POWELL INDUSTRIES INC powl FMR CORP n/a view
S 2002-02-14 00:00:00.0 POWELL INDUSTRIES INC powl KLEIN BANK 6.6% view
S 2002-02-12 00:00:00.0 POWELL INDUSTRIES INC powl HEARTLAND ADVISORS INC 0.0% view
B 2001-11-09 00:00:00.0 POWELL INDUSTRIES INC powl KERN CAPITAL MANAGEMENT LLC 10.4% view
S 2001-03-12 00:00:00.0 POWELL INDUSTRIES INC powl ARTISAN PARTNERS LTD PARTNERSHIP n/a view
B 2001-02-14 00:00:00.0 POWELL INDUSTRIES INC powl KLEIN BANK 8.03% view
S 2001-02-09 00:00:00.0 POWELL INDUSTRIES INC powl ARTISAN PARTNERS LTD PARTNERSHIP 7.5% view
S 2000-03-09 00:00:00.0 POWELL INDUSTRIES INC powl ARTISAN PARTNERS LTD PARTNERSHIP n/a view
B 2000-02-14 00:00:00.0 POWELL INDUSTRIES INC powl ARTISAN PARTNERS LTD PARTNERSHIP 6.8% view
B 2000-02-11 00:00:00.0 POWELL INDUSTRIES INC powl WELLINGTON MANAGEMENT CO LLP n/a view
S 2000-02-03 00:00:00.0 POWELL INDUSTRIES INC powl HEARTLAND ADVISORS INC n/a view
B 1999-02-12 00:00:00.0 POWELL INDUSTRIES INC powl KLEIN BANK 8.04% view
B 1999-02-02 00:00:00.0 POWELL INDUSTRIES INC powl HEARTLAND ADVISORS INC n/a view
S 1998-02-11 00:00:00.0 POWELL INDUSTRIES INC powl HEARTLAND ADVISORS INC 8.7% view
S 1997-02-14 00:00:00.0 POWELL INDUSTRIES INC powl HEARTLAND ADVISORS INC 9.7% view
B 1996-02-13 00:00:00.0 POWELL INDUSTRIES INC powl CHARTER BANCSHARES INC 7.75% view
B 1996-02-08 00:00:00.0 POWELL INDUSTRIES INC powl WELLINGTON MANAGEMENT CO 6.53% 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.