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WESTFIELD CAPITAL MANAGEMENT CO LLC
- As of  04/30/24, 06:14:50 AM:   191 Insider Transactions.

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Buy/Sell* 1 Yr Return** Filed Date Subject Symbol Pct Owned Details
B 2020-01-07 11:41:54.0 SITIME Corp SITM 5.09% view
S 2020-01-07 08:38:17.0 MEDICINES CO MDCO 1.71% view
B 2020-01-07 08:36:53.0 Correvio Pharma Corp CRME 100.0% view
S 2019-09-04 13:59:51.0 Correvio Pharma Corp CRME 9.69% view
S 2019-04-05 08:25:07.0 Correvio Pharma Corp CRME 12.21% view
B 2019-02-07 07:03:51.0 MEDICINES CO MDCO 6.23% view
B 2018-07-03 14:07:18.0 Correvio Pharma Corp CRME 13.27% view
S 2018-05-02 07:51:52.0 Cardiome Pharma Corp CRME 11.9% view
S 2018-03-02 16:29:41.0 Cardiome Pharma Corp CRME 12.62% view
S 2017-12-07 18:32:24.0 Cardiome Pharma Corp CRME 13.74% view
S 2017-09-07 16:19:59.0 Cardiome Pharma Corp CRME 14.59% view
B 2017-08-08 11:23:17.0 Cardiome Pharma Corp CRME 16.75% view
S 2017-08-03 15:55:56.0 HEXCEL CORP HXL 0.0% view
B 2017-04-07 18:31:30.0 Huron Consulting Group Inc HURN 0.0% view
S 2017-04-07 15:22:45.0 MERRIMACK PHARMACEUTICALS INC MACK 0.0% view
S 2017-04-07 15:21:54.0 ARIAD PHARMACEUTICALS INC ARIA 0.0% view
S 2017-02-10 10:52:48.0 Cardiome Pharma Corp CRME 15.93% view
B 2017-02-10 10:52:26.0 MERRIMACK PHARMACEUTICALS INC MACK 7.0% view
S 2017-02-10 10:51:58.0 RUSH ENTERPRISES INC RUSHB 2.78% view
S 2017-02-10 10:50:55.0 ARIAD PHARMACEUTICALS INC ARIA 2.55% view
S 2017-02-10 10:50:27.0 XPO Logistics XPO 0.0% view
S 2017-02-10 10:49:24.0 SUPERIOR ENERGY SERVICES INC SPN 0.0% view
S 2017-02-10 10:48:15.0 PTC THERAPEUTICS PTCT 0.0% view
S 2017-02-10 10:47:41.0 AMAG PHARMACEUTICALS INC AMAG 0.0% view
S 2016-09-09 16:49:27.0 Cardiome Pharma Corp CRME 17.01% view
B 2016-02-10 17:01:29.0 Wright Medical Group N WMGI 2.19% view
B 2016-02-10 17:00:44.0 RUSH ENTERPRISES INC RUSHB 5.38% view
B 2016-02-10 16:59:58.0 PTC THERAPEUTICS PTCT 5.46% view
B 2016-02-10 16:59:16.0 MERRIMACK PHARMACEUTICALS INC MACK 6.28% view
B 2016-02-09 20:05:19.0 ARIAD PHARMACEUTICALS INC ARIA 5.01% view
S 2016-02-09 20:04:33.0 AMAG PHARMACEUTICALS INC AMAG 5.26% view
B 2016-02-09 20:03:32.0 Cardiome Pharma Corp CRME 20.09% view
S 2016-02-05 17:06:59.0 MWI Veterinary Supply MWIV 0.0% view
S 2016-02-05 17:06:13.0 DYNAVAX TECHNOLOGIES CORP DVAX 0.0% view
S 2016-02-05 17:05:25.0 Aegerion Pharmaceuticals AEGR 0.0% view
B 2015-11-09 12:05:00.0 Cardiome Pharma Corp CRME 18.67% view
B 2015-10-08 19:45:22.0 Cardiome Pharma Corp CRME 16.4% view
S 2015-08-07 16:12:26.0 Cardiome Pharma Corp CRME 14.96% view
B 2015-07-10 17:50:12.0 Cardiome Pharma Corp CRME 16.01% view
B 2015-06-09 17:17:40.0 Cardiome Pharma Corp CRME 15.13% view
B 2015-04-08 16:19:04.0 Cardiome Pharma Corp CRME 13.34% view
B 2015-03-06 13:08:54.0 Cardiome Pharma Corp CRME 10.33% view
B 2015-02-09 19:59:17.0 WRIGHT MEDICAL GROUP INC WMGI 5.4% view
S 2015-02-09 19:57:08.0 Nuance Communications NUAN 0.0% view
B 2015-02-09 19:54:32.0 MWI Veterinary Supply MWIV 6.24% view
B 2015-02-09 19:51:01.0 DYNAVAX TECHNOLOGIES CORP DVAX 6.45% view
B 2015-02-09 19:48:10.0 ARTHROCARE CORP ARTC 9.4% view
B 2015-02-09 19:47:43.0 Cardiome Pharma Corp CRME 9.21% view
B 2015-02-09 19:37:49.0 Aegerion Pharmaceuticals AEGR 9.69% view
S 2014-11-07 19:38:38.0 Aegerion Pharmaceuticals AEGR 8.58% view
B 2014-10-07 21:29:50.0 Aegerion Pharmaceuticals AEGR 11.76% view
B 2014-07-09 18:30:55.0 Aegerion Pharmaceuticals AEGR 10.88% view
S 2014-03-10 17:03:05.0 ARTHROCARE CORP ARTC 9.4% view
S 2014-02-07 10:20:45.0 ORTHOFIX INTERNATIONAL N V OFIX 0.0% view
S 2014-02-07 09:22:18.0 TILLY TLYS 0.0% view
S 2014-02-07 09:18:29.0 TITAN INTERNATIONAL INC TWI 0.0% view
S 2014-02-07 09:18:10.0 STEWART ENTERPRISES INC STEI 0.0% view
S 2014-02-07 09:16:32.0 PALOMAR MEDICAL TECHNOLOGIES LLC PMTI 0.0% view
S 2014-02-07 09:16:05.0 XPO Logistics XPO 3.73% view
S 2014-02-07 09:14:32.0 Huron Consulting Group Inc HURN 0.0% view
S 2014-02-07 09:12:44.0 Huron Consulting Group Inc HURN 3.08% view
S 2014-02-07 09:10:56.0 FXCM Inc FXCM 0.0% view
S 2014-02-07 09:07:31.0 ELAN CORP PLC n/a 0.0% view
S 2014-02-07 09:05:14.0 ATMI INC ATMI 0.0% view
S 2014-02-07 09:00:13.0 ALEXION PHARMACEUTICALS INC ALXN 0.0% view
B 2013-11-07 16:10:20.0 ARTHROCARE CORP ARTC 11.16% view
B 42.85% 2013-05-06 09:00:12.0 ARTHROCARE CORP ARTC 10.52% view
S 2013-02-08 10:40:26.0 SKILLED HEALTHCARE GROUP INC n/a 1.0% view
B 50.47% 2013-02-08 10:20:11.0 XPO Logistics XPO 7.77% view
B -20.04% 2013-02-08 10:17:22.0 TILLY TLYS 5.6% view
S 2013-02-08 10:10:39.0 FXCM Inc FXCM 4.63% view
S 2013-02-08 10:04:51.0 TESORO CORP TSO 4.35% view
B 36.82% 2013-02-08 09:54:38.0 ARTHROCARE CORP ARTC 8.81% view
S 2013-02-08 09:51:57.0 ATMI INC ATMI 2.37% view
S 2013-02-08 09:31:47.0 TITAN INTERNATIONAL INC TWI 3.97% view
S 2013-02-08 09:31:06.0 METABOLIX MBLX 1.0% view
B 93.38% 2013-02-08 09:30:48.0 Huron Consulting Group Inc HURN 5.72% view
S 2012-03-27 11:08:29.0 TITAN INTERNATIONAL INC TWI 5.14% view
B 104.26% 2012-03-27 11:03:02.0 TESORO CORP TSO 5.65% view
B 51.88% 2012-03-27 10:54:49.0 STEWART ENTERPRISES INC STEI 7.63% view
S 2012-03-27 10:45:53.0 ORTHOFIX INTERNATIONAL N V OFIX 3.43% view
S 2012-03-27 10:40:53.0 METABOLIX MBLX 7.91% view
B -0.52% 2012-03-27 10:31:12.0 FXCM Inc FXCM 6.06% view
B -2.53% 2012-03-27 10:25:52.0 ATMI INC ATMI 5.71% view
S 2012-03-27 09:50:56.0 ARTHROCARE CORP ARTC 6.88% view
S 2012-02-13 11:03:07.0 SUN HEALTHCARE GROUP INC SUNH 1.0% view
B 29.47% 2012-02-13 10:59:28.0 STEWART ENTERPRISES INC STEI 7.32% view
S 2012-02-13 10:55:49.0 SANTARUS INC SNTS 0.0% view
S 2012-02-13 10:52:01.0 METABOLIX MBLX 8.14% view
S 2012-02-13 10:47:58.0 ORTHOFIX INTERNATIONAL N V OFIX 3.5% view
S 2012-02-13 10:44:17.0 IMMUCOR INC BLUD 1.0% view
S 2012-02-13 10:40:18.0 HIBBETT SPORTS INC HIBB 0.0% view
S 2012-02-13 10:36:24.0 EXTERRAN HOLDINGS INC EXH 0.0% view
S 2012-02-13 10:31:55.0 DIONEX CORP DNEX 0.0% view
B -10.04% 2012-02-13 10:27:20.0 ATMI INC ATMI 5.49% view
B 6.92% 2012-02-13 10:22:32.0 TITAN INTERNATIONAL INC TWI 5.16% view
B 93.52% 2012-02-13 10:16:42.0 TESORO CORP TSO 5.48% view
B 27.48% 2012-02-13 10:12:23.0 FXCM Inc FXCM 5.38% view
B 21.26% 2012-02-13 10:06:01.0 ARTHROCARE CORP ARTC 6.93% view
S 2011-12-09 13:08:48.0 METABOLIX MBLX 8.7% view
B -70.70% 2011-07-08 15:45:57.0 METABOLIX MBLX 10.56% view
S 2011-07-08 15:43:01.0 METABOLIX MBLX 9.34% view
B -67.23% 2011-06-10 09:42:06.0 METABOLIX MBLX 11.5% view
S 2011-05-10 11:23:49.0 SKILLED HEALTHCARE GROUP INC n/a 4.5% view
S 2011-03-09 12:47:58.0 SANTARUS INC SNTS 8.27% view
S 2011-02-11 12:17:07.0 ACI WORLDWIDE ACIW 0.0% view
S 2011-02-11 09:59:55.0 ADOLOR CORP ADLR 0.0% view
S 2011-02-11 09:57:36.0 EXTERRAN HOLDINGS INC EXH 4.3% view
S 2011-02-11 09:55:13.0 HIBBETT SPORTS INC HIBB 4.03% view
S 2011-02-11 09:52:32.0 MEDICINES CO MDCO 0.0% view
S 2011-02-11 09:49:32.0 NAVIGANT CONSULTING INC NCI 0.0% view
B 39.35% 2011-02-11 09:47:37.0 ORTHOFIX INTERNATIONAL N V OFIX 5.02% view
S 2011-02-11 09:45:15.0 RBC Bearings INC ROLL 0.0% view
B -14.01% 2011-02-11 09:42:41.0 STEWART ENTERPRISES INC STEI 6.76% view
S 2011-02-11 09:40:45.0 SUN HEALTHCARE GROUP INC SUNH 4.39% view
S 2010-12-08 09:09:40.0 SANTARUS INC SNTS 10.58% view
S 2010-10-08 09:25:07.0 SKILLED HEALTHCARE GROUP INC n/a 14.18% view
B 2010-08-09 16:02:51.0 SKILLED HEALTHCARE GROUP INC n/a 16.63% view
S 2010-02-11 07:34:23.0 WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORP WAB 0.0% view
B 2010-02-11 07:32:19.0 SUN HEALTHCARE GROUP INC SUNH 5.19% view
B 54.13% 2010-02-11 07:30:18.0 STEWART ENTERPRISES INC STEI 5.66% view
S 2010-02-11 07:29:10.0 SKILLSOFT PUBLIC LIMITED CO SKIL 4.15% view
S 2010-02-11 07:27:15.0 RBC Bearings INC ROLL 0.47% view
S 2010-02-11 07:26:03.0 OSI PHARMACEUTICALS INC OSIP 4.91% view
S 2010-02-11 07:24:07.0 NAVIGANT CONSULTING INC NCI 4.85% view
S 2010-02-11 07:22:30.0 MEDICINES CO MDCO 2.11% view
B 44.53% 2010-02-11 07:20:08.0 HIBBETT SPORTS INC HIBB 5.57% view
S 2010-02-11 07:17:49.0 GENTIVA HEALTH SERVICES INC GTIV n/a view
B 14.31% 2010-02-11 07:15:47.0 EXTERRAN HOLDINGS INC EXH 6.26% view
S 2010-02-11 07:13:17.0 EAST WEST BANCORP INC EWBC 0.0% view
S 2010-02-11 07:11:46.0 CORINTHIAN COLLEGES INC COCO 0.0% view
S 2010-02-11 07:09:36.0 CARDIONET INC BEAT n/a view
S 2010-02-11 07:07:36.0 ATMI INC ATMI 3.55% view
S 2010-02-11 07:05:35.0 ADOLOR CORP ADLR 8.07% view
S 2010-02-11 07:03:38.0 ACTUANT CORP ATU 0.0% view
S 2009-11-09 09:58:05.0 SANTARUS INC SNTS 12.95% view
B 2009-10-09 07:04:59.0 SKILLED HEALTHCARE GROUP INC n/a 12.6% view
S 2009-09-09 07:42:56.0 ADOLOR CORP adlr 8.97% view
S 2009-08-04 13:01:50.0 ADOLOR CORP adlr 10.5% view
S 2009-06-09 11:33:28.0 ADOLOR CORP adlr 11.61% view
S 2009-04-09 07:56:38.0 SANTARUS INC SNTS 13.86% view
B -40.95% 2009-02-04 09:45:58.0 MEDICINES CO mdco 5.32% view
S 2009-02-04 09:44:58.0 ATMI INC ATMI 6.32% view
S 2009-02-04 09:43:58.0 Nuance Communications NUAN 4.49% view
S 2009-02-04 09:42:50.0 GEHL CO GEHL 0.0% view
S 2009-02-04 09:40:57.0 SKILLSOFT PUBLIC LIMITED CO SKIL 6.5% view
S 2009-02-04 09:39:27.0 RBC Bearings INC ROLL 6.63% view
S 2009-02-04 09:37:57.0 SRA INTERNATIONAL INC SRX 0.0% view
S 2009-02-04 09:37:30.0 ALEXION PHARMACEUTICALS INC LAXN 4.84% view
B -73.80% 2009-02-04 09:34:56.0 CARDIONET INC BEAT 5.51% view
S 2009-02-04 09:29:26.0 POWER INTEGRATIONS INC POWI 0.0% view
S 2009-02-04 09:27:55.0 OSI PHARMACEUTICALS INC OSIP 6.4% view
S 2009-02-04 09:25:26.0 VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES INC VSEA 0.0% view
S 2009-02-04 09:21:25.0 GENTIVA HEALTH SERVICES INC GTIV 2.55% view
B 2009-02-04 09:19:23.0 ELAN CORP PLC n/a 4.1% view
B -4.63% 2009-02-04 09:18:39.0 NAVIGANT CONSULTING INC NCI 5.0% view
S 2009-02-04 09:16:39.0 PALOMAR MEDICAL TECHNOLOGIES INC PMTI 4.61% view
B 5.61% 2009-02-04 09:14:54.0 ACTUANT CORP ATU 6.24% view
S 2009-02-04 09:13:54.0 ACI WORLDWIDE ACIW 3.39% view
B -32.44% 2009-02-04 09:12:23.0 CORINTHIAN COLLEGES INC COCO 5.23% view
S 2009-02-04 09:10:53.0 APOGEE ENTERPRISES INC APOG 0.0% view
S 2009-02-04 09:08:53.0 SCHAWK INC SGK 0.0% view
S 2009-02-04 09:07:24.0 INTERLINE BRANDS IBI 0.0% view
S 2009-01-09 09:04:11.0 SANTARUS INC SNTS 15.54% view
S 2009-01-09 09:02:51.0 ADOLOR CORP adlr 13.53% view
S 2008-08-04 09:14:06.0 Vanda Pharmaceuticals Inc VNDA 0.0% view
B 258.91% 2008-07-03 08:46:02.0 Vanda Pharmaceuticals Inc VNDA 10.715% view
B 2008-01-10 09:19:29.0 ALEXION PHARMACEUTICALS INC LAXN 7.65% view
B -46.48% 2008-01-10 09:19:28.0 DIONEX CORP DNEX 3.48% view
B 9.92% 2008-01-10 09:19:25.0 ACI WORLDWIDE ACIW 6.68% view
S 2008-01-10 09:18:47.0 ASV INC asvi 0.0% view
B 2008-01-10 09:17:48.0 MGI PHARMA INC MOGN 0.0% view
B 2008-01-10 09:17:12.0 Wengen Alberta n/a 0.0% view
S 2008-01-10 09:16:27.0 NAVIGANT CONSULTING INC NCI 0.0% view
S 2008-01-10 09:15:31.0 GREENBRIER COMPANIES INC GBX 0.0% view
B 17.72% 2008-01-10 09:15:17.0 CORINTHIAN COLLEGES INC COCO 4.97% view
B -21.34% 2008-01-10 09:13:28.0 MEDCO HEALTH SOLUTIONS INC MHS 0.0% view
B -81.68% 2008-01-10 09:13:15.0 VALASSIS COMMUNICATIONS INC VCI 0.0% view
B 2008-01-10 09:12:48.0 ELAN CORP PLC n/a 5.1% view
B -30.68% 2008-01-10 09:11:26.0 APOGEE ENTERPRISES INC APOG 5.79% view
S 2008-01-10 09:10:04.0 ACTUANT CORP ATU 5.87% view
B -12.94% 2008-01-10 09:09:25.0 OSI PHARMACEUTICALS INC OSIP 8.22% view
B -20.02% 2008-01-10 09:08:08.0 Fidelity National Information Services FIS 0.0% view
S 2008-01-10 09:06:25.0 GEHL CO GEHL 0.07% view
S 2008-01-10 09:06:09.0 Vanda Pharmaceuticals Inc VNDA 8.56% view
B -54.71% 2008-01-10 09:04:45.0 INTERLINE BRANDS IBI 5.49% view
B -66.80% 2008-01-10 09:04:02.0 HEXCEL CORP hxl 0.24% view
B 2008-01-10 09:03:25.0 MANOR CARE INC HCR 12.0% view
S 2008-01-10 09:02:47.0 GENTIVA HEALTH SERVICES INC GTIV 5.05% view
S 2008-01-10 09:00:17.0 PALOMAR MEDICAL TECHNOLOGIES INC PMTI 5.62% view
B 2008-01-10 08:58:49.0 COMMUNITY BANCORP CMTV 5.7% 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.