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PALO ALTO INVESTORS LP
- As of  06/05/24, 01:19:19 AM:   111 Insider Transactions.

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Buy/Sell* 1 Yr Return** Filed Date Subject Symbol Pct Owned Details
S 2020-02-14 15:16:07.0 AMAG PHARMACEUTICALS INC AMAG 9.55% view
S 2015-02-17 20:47:37.0 RIGEL PHARMACEUTICALS INC RIGL 5.9% view
S 2015-02-17 20:35:30.0 ABIOMED INC ABMD 6.02% view
B -22.08% 2014-10-07 20:55:00.0 RIGEL PHARMACEUTICALS INC RIGL 6.0% view
S 2014-02-14 17:25:09.0 Vanda Pharmaceuticals Inc VNDA 9.8% view
B 52.74% 2014-02-14 17:23:07.0 SEQUENOM INC SQNM 8.1% view
B 36.08% 2014-02-14 17:20:07.0 AUXILIUM PHARMACEUTICALS INC AUXL 9.9% view
S 2014-02-14 17:17:51.0 AMAG PHARMACEUTICALS INC AMAG 8.1% view
B 114.61% 2014-02-14 17:15:09.0 ABIOMED INC ABMD 6.8% view
B 14.30% 2013-11-12 13:04:44.0 AUXILIUM PHARMACEUTICALS INC AUXL 8.9% view
S 2013-07-30 16:02:47.0 ALIMERA SCIENCES INC ALIM 32.6% view
B 237.53% 2013-02-14 16:10:07.0 Vanda Pharmaceuticals Inc VNDA 5.1% view
B -46.77% 2013-02-14 15:56:19.0 SEQUENOM INC SQNM 6.5% view
B 58.22% 2013-02-14 15:55:17.0 BROADVISION INC BVSN 12.0% view
S 2013-02-14 15:53:23.0 AMICUS THERAPEUTICS INC FOLD 10.5% view
B 51.30% 2012-10-11 16:30:08.0 AMAG PHARMACEUTICALS INC AMAG 8.6% view
S 2012-04-05 16:52:13.0 VIROPHARMA INC VPHM 5.7% view
B -12.87% 2012-02-13 15:42:54.0 AUXILIUM PHARMACEUTICALS INC AUXL 6.4% view
S 2012-02-13 15:34:55.0 AMAG PHARMACEUTICALS INC AMAG 6.5% view
B -7.76% 2012-02-13 15:27:49.0 SEQUENOM INC SQNM 5.4% view
S 2012-02-13 15:10:28.0 NORTHERN OIL & GAS NOG 0.6% view
S 2012-02-13 15:03:03.0 interclick ICKL 0.0% view
S 2012-02-13 14:50:20.0 CERAGON NETWORKS LTD n/a 0.1% view
S 2012-02-13 14:40:40.0 AMAG PHARMACEUTICALS INC AMAG 7.8% view
S 2011-10-11 16:51:41.0 BROADVISION INC BVSN 6.4% view
S 2011-09-14 16:55:08.0 AMICUS THERAPEUTICS INC FOLD 17.25% view
S 2011-08-25 14:35:58.0 VIROPHARMA INC VPHM 6.3% view
B 84.48% 2011-02-11 14:05:53.0 STAAR SURGICAL CO STAA 7.0% view
S 2011-02-11 14:03:13.0 NORTHERN OIL & GAS NOG 1.6% view
S 2011-02-11 14:00:21.0 MOMENTA PHARMACEUTICALS INC MNTA 6.7% view
S 2011-02-11 13:55:01.0 CERAGON NETWORKS LTD n/a 6.1% view
B 4.52% 2011-02-11 13:51:29.0 AMICUS THERAPEUTICS INC FOLD 24.3% view
B 4.53% 2011-01-26 17:25:14.0 AMAG PHARMACEUTICALS INC AMAG 14.9% view
B 21.50% 2010-12-23 17:11:46.0 AMAG PHARMACEUTICALS INC AMAG 10.29% view
B 16.22% 2010-12-06 17:09:35.0 AMAG PHARMACEUTICALS INC AMAG 9.29% view
S 2010-10-12 12:24:32.0 Limelight Networks LLNW 0.1% view
S 2010-09-03 16:56:36.0 GASTAR EXPLORATION LTD GST 5.8% view
B 895.38% 2010-08-31 16:16:14.0 Triangle Petroleum Corp TPLM 15.2% view
S 2010-05-25 16:49:22.0 GASTAR EXPLORATION LTD GST 8.3% view
S 2010-05-04 17:15:54.0 TOREADOR RESOURCES CORP TRGL 7.6% view
B 65.77% 2010-04-13 14:29:36.0 VIROPHARMA INC VPHM 6.5% view
S 2010-02-12 19:32:45.0 SAVIENT PHARMACEUTICALS INC SVNT 5.2% view
B 69.01% 2010-02-12 19:26:23.0 Limelight Networks LLNW 7.1% view
B 80.79% 2010-02-12 19:17:39.0 CYBERONICS INC CYBX 14.2% view
S 2010-02-12 19:12:38.0 CURON MEDICAL INC CRNM 7.8% view
S 2010-02-12 19:03:24.0 CACHE INC CACH 6.0% view
S 2010-02-12 18:58:25.0 BIOMIMETIC THERAPEUTICS BMTI 0.7% view
B 77.07% 2010-02-12 18:51:18.0 AUXILIUM PHARMACEUTICALS INC FOLD 20.5% view
B 10.23% 2010-02-12 18:43:10.0 AMAG PHARMACEUTICALS INC GST 9.4% view
S 2010-01-13 19:44:30.0 GASTAR EXPLORATION LTD GST 9.4% view
S 2009-12-11 17:03:59.0 GASTAR EXPLORATION LTD FOLD 12.0% view
B 5,790.00% 2009-12-01 17:09:36.0 Triangle Petroleum Corp TPLM 21.22% view
B -16.63% 2009-11-09 21:43:36.0 GASTAR EXPLORATION LTD GST 14.8% view
S 2009-09-11 19:03:03.0 CANADIAN SUPERIOR ENERGY INC n/a 9.3% view
S 2009-06-24 16:42:21.0 IDM PHARMA n/a 9.3% view
S 2009-06-02 18:31:41.0 CANADIAN SUPERIOR ENERGY INC n/a 9.3% view
S 2009-05-19 18:19:07.0 IDM PHARMA IDMI 9.3% view
S 2009-04-27 18:42:12.0 NORTHERN OIL & GAS NOG 12.0% view
S 2009-04-06 15:25:52.0 CANADIAN SUPERIOR ENERGY INC n/a 9.3% view
S 2009-03-27 17:24:05.0 Allis Chalmers Energy Inc ALCM 9.3% view
S 2009-03-11 08:51:57.0 CANADIAN SUPERIOR ENERGY INC n/a 9.3% view
B 1,361.11% 2009-02-17 16:04:51.0 GASTAR EXPLORATION LTD GST 12.0% view
S 2009-02-17 14:41:19.0 UNICA CORP TPLM 12.0% view
S 2009-02-17 14:40:10.0 SAVIENT PHARMACEUTICALS INC peet 12.0% view
B 66.24% 2009-02-17 14:39:11.0 MOMENTA PHARMACEUTICALS INC MDVN 12.0% view
B 35.36% 2009-02-17 14:38:13.0 Limelight Networks CYBX 12.0% view
B 2009-02-17 14:37:01.0 CURON MEDICAL INC n/a 12.0% view
S 2009-02-17 14:36:02.0 CACHE INC BVSN 12.0% view
B 0.86% 2009-02-17 14:35:11.0 BIOMIMETIC THERAPEUTICS AUXL 12.0% view
B 2.67% 2009-02-17 14:32:54.0 AMICUS THERAPEUTICS INC FOLD 12.0% view
B 2009-02-17 14:31:19.0 Allis Chalmers Energy Inc n/a 14.0% view
S 2009-02-02 17:37:48.0 TOREADOR RESOURCES CORP TPLM 12.0% view
B -70.97% 2008-11-06 14:08:13.0 CANADIAN SUPERIOR ENERGY INC TPLM 23.9% view
B 2008-09-30 15:16:20.0 CANADIAN SUPERIOR ENERGY INC n/a 10.1% view
B 2008-09-26 18:56:27.0 IDM PHARMA n/a 40.5% view
S 2008-08-18 16:08:51.0 SAVIENT PHARMACEUTICALS INC SVNT 6.9% view
B -31.91% 2008-08-11 16:28:27.0 AMAG PHARMACEUTICALS INC FOLD 10.5% view
B -23.96% 2008-05-27 14:58:24.0 TOREADOR RESOURCES CORP FOLD 9.5% view
B -24.00% 2008-05-12 17:04:50.0 UNICA CORP CYBX 11.0% view
B 2008-03-19 15:41:45.0 CYBERONICS INC MDVN 7.8% view
S 2008-02-13 14:51:38.0 CYBERONICS INC CRNM 7.8% view
B -7.01% 2008-02-13 14:51:03.0 COLLAGENEX PHARMACEUTICALS INC AUXL 5.3% view
B -56.55% 2008-02-13 14:50:31.0 AMAG PHARMACEUTICALS INC LLNW 6.7% view
B -9.57% 2008-02-13 14:50:04.0 UNICA CORP peet 12.1% view
S 2008-02-13 14:49:31.0 TOREADOR RESOURCES CORP TPLM 15.3% view
S 2008-02-13 14:48:45.0 MOMENTA PHARMACEUTICALS INC n/a 10.2% view
B -81.97% 2008-02-13 14:48:13.0 FLOTEK INDUSTRIES INC CACH 9.3% view
B 2008-02-13 14:47:42.0 BROADVISION INC BVSN 14.0% view
B -49.59% 2008-02-13 14:47:10.0 GASTAR EXPLORATION LTD GST 11.5% view
S 2008-01-25 18:50:42.0 SAVIENT PHARMACEUTICALS INC SVNT 13.3% view
B 2008-01-10 15:07:07.0 COLLAGENEX PHARMACEUTICALS INC CGPI 8.0% view
S 2007-11-26 17:27:23.0 RESTORATION HARDWARE INC RSTO 11.5% view
S 2007-09-07 18:33:17.0 FLOTEK INDUSTRIES INC FTK 7.8% view
B 2007-09-07 18:32:53.0 RESTORATION HARDWARE INC RSTO 11.6% view
S 2007-07-30 14:18:17.0 ENDEAVOUR INTERNATIONAL CORP END 0.0% view
B -67.55% 2007-03-08 14:30:59.0 Triangle Petroleum Corp TPLM 18.2% view
B 2007-03-08 14:30:42.0 ON TRACK INNOVATIONS LTD n/a 15.5% view
B -12.17% 2007-02-14 15:35:56.0 PEETS COFFEE & TEA INC peet 10.3% view
B -61.40% 2007-02-14 15:35:18.0 TOREADOR RESOURCES CORP TRGL 5.1% view
B -41.16% 2007-02-14 15:34:28.0 MOMENTA PHARMACEUTICALS INC MNTA 6.1% view
B 2007-02-14 15:15:55.0 FORBES MEDI TECH INC n/a 4.1% view
B -31.32% 2007-02-14 15:15:15.0 GASTAR EXPLORATION LTD GST 5.6% view
S 2007-02-14 15:14:40.0 ENDEAVOUR INTERNATIONAL CORP END 8.1% view
S 2007-02-14 15:14:09.0 CANADIAN SUPERIOR ENERGY INC n/a 5.0% view
B -0.57% 2007-02-14 15:13:34.0 Allis Chalmers Energy Inc ALCM 5.5% view
B 4.92% 2006-12-14 14:45:18.0 PEETS COFFEE & TEA INC peet 9.8% view
S 2006-06-21 00:00:00.0 FLOTEK INDUSTRIES INC FTK 10.1% view
B 2006-05-09 00:00:00.0 ADVANCED MAGNETICS INC AVM 4.34% view
B 10.89% 2006-05-08 00:00:00.0 ATP OIL & GAS CORP ATPG 4.0% view
S 2006-05-08 00:00:00.0 ARTHROCARE CORP ARTC 4.57% view
B -8.54% 2006-05-08 00:00:00.0 PACKETEER INC PKTR 6.77% 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.
** Since most institutions are long investors, only returns for long transactions are shown here.