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ARNA - As of  04/30/25, 10:31:20 AM:   120 Insider Transactions.

Sector: Healthcare    Industry: Biotechnology
Prev Close:$1.62  Avg Vol(3m): 1,722,360  P/E: 0.00  EPS: -0.44

Email this page to a friend.    Insider Transactions for ARNA

Buy/Sell* Filed Date Subject Symbol Acquirer Pct Owned Details
B 2020-04-09 17:15:26.0 ARENA PHARMACEUTICALS INC ARNA BlackRock Inc 10.1% view
S 2020-02-14 16:05:06.0 ARENA PHARMACEUTICALS INC ARNA Partner Fund Management 2.2% view
S 2020-02-12 08:02:54.0 ARENA PHARMACEUTICALS INC ARNA VANGUARD GROUP INC 9.09% view
B 2020-02-05 11:25:54.0 ARENA PHARMACEUTICALS INC ARNA BlackRock Inc 9.8% view
S 2020-01-27 15:11:25.0 ARENA PHARMACEUTICALS INC ARNA WELLINGTON MANAGEMENT GROUP LLP 9.33% view
B 2019-02-14 17:22:39.0 ARENA PHARMACEUTICALS INC ARNA Partner Fund Management 6.2% view
B 2019-02-11 09:32:49.0 ARENA PHARMACEUTICALS INC ARNA VANGUARD GROUP INC 9.49% view
B 2019-02-04 10:07:42.0 ARENA PHARMACEUTICALS INC ARNA BlackRock Inc 9.7% view
B 2019-01-10 09:37:00.0 ARENA PHARMACEUTICALS INC ARNA WELLINGTON MANAGEMENT GROUP LLP 10.02% view
S 2018-11-13 10:38:27.0 ARENA PHARMACEUTICALS INC ARNA FMR LLC 4.918% view
B 2018-08-27 16:03:47.0 ARENA PHARMACEUTICALS INC ARNA Partner Fund Management 5.2% view
B 2018-04-10 10:11:50.0 ARENA PHARMACEUTICALS INC ARNA FMR LLC 10.92% view
S 2018-02-14 16:54:48.0 ARENA PHARMACEUTICALS INC ARNA GREAT POINT PARTNERS LLC 3.0% view
B 2018-02-13 09:33:24.0 ARENA PHARMACEUTICALS INC ARNA FMR LLC 8.188% view
B 2018-02-12 08:28:47.0 ARENA PHARMACEUTICALS INC ARNA VANGUARD GROUP INC 8.16% view
S 2018-02-08 11:53:55.0 ARENA PHARMACEUTICALS INC ARNA WELLINGTON MANAGEMENT GROUP LLP 9.2% view
B 2018-01-29 16:40:50.0 ARENA PHARMACEUTICALS INC ARNA BlackRock Inc 7.9% view
B 2017-04-28 16:00:26.0 ARENA PHARMACEUTICALS INC ARNA GREAT POINT PARTNERS LLC 9.75% view
S 2017-02-14 10:45:34.0 ARENA PHARMACEUTICALS INC ARNA FMR LLC 2.46% view
B 2017-02-09 13:05:21.0 ARENA PHARMACEUTICALS INC ARNA VANGUARD GROUP INC 7.8% view
B 2017-01-19 17:24:22.0 ARENA PHARMACEUTICALS INC ARNA BlackRock Inc 7.8% view
B 2016-02-12 08:54:29.0 ARENA PHARMACEUTICALS INC ARNA FMR LLC 5.824% view
S 2016-02-11 10:59:28.0 ARENA PHARMACEUTICALS INC ARNA WELLINGTON MANAGEMENT GROUP LLP 10.32% view
B 2016-02-10 14:45:20.0 ARENA PHARMACEUTICALS INC ARNA VANGUARD GROUP INC 7.07% view
S 2016-01-25 13:46:48.0 ARENA PHARMACEUTICALS INC ARNA BlackRock Inc 6.6% view
S 2015-02-12 10:38:15.0 ARENA PHARMACEUTICALS INC ARNA WELLINGTON MANAGEMENT GROUP LLP 13.22% view
S 2015-02-10 11:48:00.0 ARENA PHARMACEUTICALS INC ARNA VANGUARD GROUP INC 6.31% view
B 2015-01-29 14:20:32.0 ARENA PHARMACEUTICALS INC ARNA BlackRock Inc 6.9% view
B 2014-02-14 09:19:45.0 ARENA PHARMACEUTICALS INC ARNA WELLINGTON MANAGEMENT CO LLP 13.74% view
B 2014-02-11 08:52:05.0 ARENA PHARMACEUTICALS INC ARNA VANGUARD GROUP INC 6.38% view
B 2013-04-10 12:36:56.0 ARENA PHARMACEUTICALS INC ARNA WELLINGTON MANAGEMENT CO LLP 10.24% view
B 2013-02-22 10:37:46.0 ARENA PHARMACEUTICALS INC ARNA VANGUARD GROUP INC 5.85% view
S 2013-02-14 15:39:23.0 ARENA PHARMACEUTICALS INC ARNA Flynn James E 3.44% view
B 2013-02-14 12:13:55.0 ARENA PHARMACEUTICALS INC ARNA WELLINGTON MANAGEMENT CO LLP 8.4% view
B 2013-02-13 11:08:56.0 ARENA PHARMACEUTICALS INC ARNA VANGUARD GROUP INC 5.37% view
S 2013-02-08 16:18:25.0 ARENA PHARMACEUTICALS INC ARNA BlackRock Inc 5.92% view
S 2012-02-14 10:41:55.0 ARENA PHARMACEUTICALS INC ARNA WELLINGTON MANAGEMENT CO LLP 5.55% view
B 2012-02-13 10:21:28.0 ARENA PHARMACEUTICALS INC ARNA BlackRock Inc 7.19% view
S 2011-12-12 14:10:24.0 ARENA PHARMACEUTICALS INC ARNA WELLINGTON MANAGEMENT CO LLP 6.25% view
S 2011-02-14 13:45:02.0 ARENA PHARMACEUTICALS INC ARNA WELLINGTON MANAGEMENT CO LLP 11.9% view
B 2011-02-10 16:18:22.0 ARENA PHARMACEUTICALS INC ARNA BB BIOTECH AG 0.0% view
S 2011-02-10 09:54:24.0 ARENA PHARMACEUTICALS INC ARNA OPPENHEIMER FUNDS INC 0.0% view
B 2011-02-02 16:10:17.0 ARENA PHARMACEUTICALS INC ARNA BlackRock Inc 6.22% view
S 2010-04-09 12:53:46.0 ARENA PHARMACEUTICALS INC ARNA FEDERATED INVESTORS INC 3.47% view
B 2010-02-16 16:09:40.0 ARENA PHARMACEUTICALS INC ARNA HBM BIOVENTURES AG 100.0% view
S 2010-02-12 14:39:38.0 ARENA PHARMACEUTICALS INC ARNA Flynn James E 9.98% view
S 2010-02-01 15:23:51.0 ARENA PHARMACEUTICALS INC ARNA OPPENHEIMER FUNDS INC 6.47% view
B 2010-01-29 14:12:56.0 ARENA PHARMACEUTICALS INC ARNA BlackRock Inc 6.09% view
S 2010-01-11 09:32:33.0 ARENA PHARMACEUTICALS INC ARNA FEDERATED INVESTORS INC 8.81% view
S 2009-09-11 09:38:12.0 ARENA PHARMACEUTICALS INC ARNA FEDERATED INVESTORS INC 14.88% view
B 2009-08-10 11:56:58.0 ARENA PHARMACEUTICALS INC ARNA FEDERATED INVESTORS INC 17.49% view
B 2009-07-07 10:09:10.0 ARENA PHARMACEUTICALS INC ARNA Flynn James E 9.98% view
S 2009-02-09 10:00:27.0 ARENA PHARMACEUTICALS INC ARNA TCW GROUP INC 4.9% view
B 2009-01-23 18:13:38.0 ARENA PHARMACEUTICALS INC ARNA OPPENHEIMER FUNDS INC 8.31% view
S 2009-01-15 19:44:25.0 ARENA PHARMACEUTICALS INC ARNA COLUMBIA WANGER ASSET MANAGEMENT LP 5.0% view
B 2008-10-07 20:07:08.0 ARENA PHARMACEUTICALS INC ARNA Bank of New York Mellon CORP 5.22% view
B 2008-10-07 19:54:44.0 ARENA PHARMACEUTICALS INC ARNA Bank of New York Mellon CORP 10.41% view
B 2008-08-11 14:07:45.0 ARENA PHARMACEUTICALS INC ARNA FEDERATED INVESTORS INC 10.67% view
B 2008-02-14 12:04:51.0 ARENA PHARMACEUTICALS INC ARNA WELLINGTON MANAGEMENT CO LLP 13.62% view
S 2008-02-14 11:27:18.0 ARENA PHARMACEUTICALS INC ARNA Flynn James E 8.25% view
B 2008-02-13 10:39:35.0 ARENA PHARMACEUTICALS INC ARNA FEDERATED INVESTORS INC 5.73% view
S 2008-02-04 14:59:12.0 ARENA PHARMACEUTICALS INC ARNA OPPENHEIMER FUNDS INC 4.41% view
B 2008-01-22 16:08:11.0 ARENA PHARMACEUTICALS INC ARNA COLUMBIA WANGER ASSET MANAGEMENT LP 5.06% view
S 2007-12-10 12:26:25.0 ARENA PHARMACEUTICALS INC ARNA FMR LLC n/a view
B 2007-10-23 17:16:25.0 ARENA PHARMACEUTICALS INC ARNA Flynn James E 9.83% view
B 2007-03-12 14:09:11.0 ARENA PHARMACEUTICALS INC ARNA WELLINGTON MANAGEMENT CO LLP 10.53% view
S 2007-02-14 16:28:38.0 ARENA PHARMACEUTICALS INC ARNA FMR CORP n/a view
B 2007-02-14 11:06:34.0 ARENA PHARMACEUTICALS INC ARNA WELLINGTON MANAGEMENT CO LLP 9.91% view
S 2007-02-12 17:12:01.0 ARENA PHARMACEUTICALS INC ARNA TCW GROUP INC 7.0% view
S 2007-02-05 17:35:07.0 ARENA PHARMACEUTICALS INC ARNA OPPENHEIMER FUNDS INC 9.07% view
B 2007-02-02 16:33:12.0 ARENA PHARMACEUTICALS INC ARNA Flynn James E 5.92% view
S 2006-11-15 13:11:00.0 ARENA PHARMACEUTICALS INC ARNA OPPENHEIMER FUNDS INC 9.75% view
B 2006-11-08 14:01:28.0 ARENA PHARMACEUTICALS INC ARNA OPPENHEIMER FUNDS INC 10.48% view
B 2006-04-07 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA TABUTEAU HERRIOT 100.0% view
B 2006-02-14 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA FMR CORP n/a view
B 2006-02-14 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA WELLINGTON MANAGEMENT CO LLP 8.32% view
B 2006-02-13 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA TCW GROUP INC 8.0% view
S 2006-02-06 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA DIMENSIONAL FUND ADVISORS INC 4.74% view
S 2005-11-10 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA PERRY CORP 2.6% view
S 2005-09-21 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA ACCIPITER CAPITAL MANAGEMENT 0.0% view
B 2005-02-14 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA TCW GROUP INC 7.4% view
S 2005-02-09 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA PERRY CORP 10.58% view
B 2005-02-09 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA DIMENSIONAL FUND ADVISORS INC 7.61% view
B 2005-01-31 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA ACCIPITER CAPITAL MANAGEMENT 1.99% view
B 2004-11-29 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA VERSANT CAPITAL MANAGEMENT LLC 5.7% view
B 2004-08-05 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA BVF PARTNERS L P 100.0% view
S 2004-07-12 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA BVF PARTNERS L P 7.5% view
S 2004-07-02 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA BVF PARTNERS L P 10.9% view
B 2004-02-06 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA DIMENSIONAL FUND ADVISORS INC 6.8% view
S 2004-01-23 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA BVF PARTNERS L P 12.2% view
S 2004-01-02 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA BVF PARTNERS L P 13.3% view
B 2003-12-29 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA PERRY CORP 10.96% view
S 2003-12-16 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA BVF PARTNERS L P 100.0% view
B 2003-10-22 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA BVF PARTNERS L P 100.0% view
S 2003-10-20 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA BVF PARTNERS L P 26.8% view
B 2003-10-09 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA BVF PARTNERS L P 26.8% view
B 2003-02-10 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA PERRY CORP 9.38% view
S 2003-01-21 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA BIOTECHNOLOGY VALUE FUND L P 27.7% view
B 2002-10-18 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA BIOTECHNOLOGY VALUE FUND L P 27.7% view
B 2002-06-13 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA BIOTECHNOLOGY VALUE FUND L P 20.3% view
S 2002-05-07 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA RS INVESTMENT MANAGEMENT CO LLC 2.4% view
B 2002-05-07 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA BIOTECHNOLOGY VALUE FUND L P 18.1% view
B 2002-04-15 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA BIOTECHNOLOGY VALUE FUND L P 11.3% view
B 2002-03-21 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA HBM BIOVENTURES AG 5.82% view
S 2002-03-11 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA TCW GROUP INC 4.8% view
B 2002-02-19 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA BIOTECHNOLOGY VALUE FUND L P 6.1% view
B 2002-02-15 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA RS INVESTMENT MANAGEMENT CO LLC 8.8% view
S 2002-02-14 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA INTERNATIONAL BM BIOMEDICINE HOLDINGS INC 3.75% view
B 2002-02-13 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA EVNIN LUKE 7.52% view
S 2002-02-13 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA MPM CAPITAL LP 7.52% view
S 2002-02-13 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA GADICKE ANSBERT 7.52% view
S 2002-02-13 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA TCW GROUP INC 4.8% view
S 2002-02-06 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA TRIPOS INC 6.9% view
B 2001-02-14 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA INTERNATIONAL BM BIOMEDICINE HOLDINGS INC 8.52% view
B 2001-02-14 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA EVNIN LUKE 0.0% view
B 2001-02-14 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA GADICKE ANSBERT 17.69% view
B 2001-02-14 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA MPM CAPITAL LP 17.69% view
B 2001-02-14 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA TCW GROUP INC 6.8% view
B 2001-02-12 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA TRIPOS INC 9.4% view
B 2000-08-04 00:00:00.0 ARENA PHARMACEUTICALS INC ARNA TRIPOS INC 9.3% 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.