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WESTFIELD CAPITAL MANAGEMENT CO LLC
- As of  06/09/24, 08:58:37 PM:   210 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
S 2015-10-08 19:45:22.0 Cardiome Pharma Corp CRME 16.4% 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 10.33% view
B 2015-02-09 19:59:17.0 WRIGHT MEDICAL GROUP INC WMGI 5.4% view
B 2015-02-09 19:57:08.0 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 19:47:43.0 Cardiome Pharma Corp CRME 9.21% view
S 2015-02-09 19:37:49.0 Aegerion Pharmaceuticals AEGR 8.58% view
B 2014-10-07 21:29:50.0 Aegerion Pharmaceuticals AEGR 10.88% view
S 2014-03-10 17:03:05.0 ARTHROCARE CORP ARTC 0.0% view
S 2014-02-07 09:22:18.0 TILLY TWI 0.0% view
S 2014-02-07 09:18:10.0 STEWART ENTERPRISES INC PMTI 0.0% view
S 2014-02-07 09:16:05.0 XPO Logistics HURN 0.0% view
S 2014-02-07 09:12:44.0 Huron Consulting Group Inc FXCM 0.0% view
S 2014-02-07 09:07:31.0 ELAN CORP PLC ATMI 0.0% view
B 2014-02-07 09:00:13.0 ALEXION PHARMACEUTICALS INC ARTC 11.16% view
S 2013-05-06 09:00:12.0 ARTHROCARE CORP n/a 1.0% view
B -20.04% 2013-02-08 10:20:11.0 XPO Logistics XPO 5.6% view
S 2013-02-08 10:10:39.0 FXCM Inc TSO 4.35% view
S 2013-02-08 09:54:38.0 ARTHROCARE CORP ATMI 2.37% view
S 2013-02-08 09:31:47.0 TITAN INTERNATIONAL INC MBLX 1.0% view
S 2013-02-08 09:30:48.0 Huron Consulting Group Inc HURN 5.14% view
B 51.88% 2012-03-27 11:03:02.0 TESORO CORP STEI 7.63% view
S 2012-03-27 10:45:53.0 ORTHOFIX INTERNATIONAL N V MBLX 7.91% view
B -2.53% 2012-03-27 10:31:12.0 FXCM Inc FXCM 5.71% view
S 2012-03-27 09:50:56.0 ARTHROCARE CORP ARTC 1.0% view
S 2012-02-13 10:59:28.0 STEWART ENTERPRISES INC SNTS 0.0% view
S 2012-02-13 10:52:01.0 METABOLIX OFIX 3.5% view
S 2012-02-13 10:44:17.0 IMMUCOR INC HIBB 0.0% view
S 2012-02-13 10:36:24.0 EXTERRAN HOLDINGS INC DNEX 0.0% view
B 6.92% 2012-02-13 10:27:20.0 ATMI INC ATMI 5.16% view
B 27.48% 2012-02-13 10:16:42.0 TESORO CORP FXCM 5.38% view
S 2012-02-13 10:06:01.0 ARTHROCARE CORP MBLX 8.7% view
S 2011-07-08 15:45:57.0 METABOLIX MBLX 9.34% view
S 2011-06-10 09:42:06.0 SKILLED HEALTHCARE GROUP INC n/a 4.5% view
S 2011-03-09 12:47:58.0 SANTARUS INC ACIW 0.0% view
S 2011-02-11 09:59:55.0 ADOLOR CORP EXH 4.3% view
S 2011-02-11 09:55:13.0 HIBBETT SPORTS INC HIBB 0.0% view
B 39.35% 2011-02-11 09:49:32.0 NAVIGANT CONSULTING INC OFIX 5.02% view
B -14.01% 2011-02-11 09:45:15.0 RBC Bearings INC STEI 6.76% view
S 2011-02-11 09:40:45.0 SUN HEALTHCARE GROUP INC SNTS 10.58% view
B 2010-10-08 09:25:07.0 SKILLED HEALTHCARE GROUP INC n/a 16.63% view
B 2010-02-11 07:34:23.0 WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORP SUNH 5.19% view
S 2010-02-11 07:30:18.0 STEWART ENTERPRISES INC STEI 4.15% view
S 2010-02-11 07:27:15.0 RBC Bearings INC ROLL 4.91% view
S 2010-02-11 07:24:07.0 NAVIGANT CONSULTING INC NCI 4.85% view
S 2010-02-11 07:20:08.0 HIBBETT SPORTS INC HIBB n/a view
S 2010-02-11 07:15:47.0 EAST WEST BANCORP INC EWBC 0.0% view
S 2010-02-11 07:11:46.0 CARDIONET INC BEAT n/a view
S 2010-02-11 07:07:36.0 ADOLOR CORP ADLR 8.07% view
S 2010-02-11 07:03:38.0 SANTARUS INC SNTS 12.95% view
S 2009-10-09 07:04:59.0 ADOLOR CORP adlr 8.97% view
S 2009-08-04 13:01:50.0 ADOLOR CORP adlr 11.61% view
B -40.95% 2009-04-09 07:56:38.0 SANTARUS INC mdco 5.32% view
S 2009-02-04 09:44:58.0 ATMI INC NUAN 4.49% view
S 2009-02-04 09:42:50.0 GEHL CO SKIL 6.5% view
S 2009-02-04 09:39:27.0 RBC Bearings INC ROLL 6.63% view
B -73.80% 2009-02-04 09:37:30.0 ALEXION PHARMACEUTICALS INC LAXN 5.51% view
S 2009-02-04 09:29:26.0 POWER INTEGRATIONS INC OSIP 6.4% view
S 2009-02-04 09:25:26.0 GENTIVA HEALTH SERVICES INC GTIV 2.55% view
B -4.63% 2009-02-04 09:19:23.0 NAVIGANT CONSULTING INC NCI 5.0% view
B 5.61% 2009-02-04 09:16:39.0 ACTUANT CORP ATU 6.24% view
B -32.44% 2009-02-04 09:13:54.0 CORINTHIAN COLLEGES INC COCO 5.23% view
S 2009-02-04 09:10:53.0 SCHAWK INC SGK 0.0% view
S 2009-02-04 09:07:24.0 SANTARUS INC SNTS 15.54% view
S 2009-01-09 09:02:51.0 ADOLOR CORP VNDA 0.0% view
B 2008-07-03 08:46:02.0 ALEXION PHARMACEUTICALS INC LAXN 7.65% view
B 9.92% 2008-01-10 09:19:28.0 DIONEX CORP ACIW 6.68% view
B 2008-01-10 09:18:47.0 ASV INC MOGN 0.0% view
S 2008-01-10 09:17:12.0 Wengen Alberta NCI 0.0% view
B 17.72% 2008-01-10 09:15:31.0 GREENBRIER COMPANIES INC COCO 4.97% view
B -81.68% 2008-01-10 09:13:28.0 MEDCO HEALTH SOLUTIONS INC VCI 0.0% view
B -30.68% 2008-01-10 09:12:48.0 APOGEE ENTERPRISES INC APOG 5.79% view
B -12.94% 2008-01-10 09:10:04.0 OSI PHARMACEUTICALS INC OSIP 8.22% view
S 2008-01-10 09:08:08.0 GEHL CO GEHL 0.07% view
B -54.71% 2008-01-10 09:06:09.0 Vanda Pharmaceuticals Inc IBI 5.49% view
B 2008-01-10 09:04:02.0 HEXCEL CORP HCR 12.0% view
S 2008-01-10 09:02:47.0 GENTIVA HEALTH SERVICES INC PMTI 5.62% view
B -37.32% 2008-01-10 08:58:49.0 STEWART ENTERPRISES INC NUAN 5.27% view
B -21.95% 2008-01-10 08:56:23.0 CHANGS P F CHINA BISTRO INC SKIL 7.45% view
B -33.59% 2008-01-10 08:52:23.0 RBC Bearings INC SGK 2.68% view
B -32.33% 2008-01-10 08:51:44.0 ATMI INC SNTS 16.44% view
S 2008-01-07 06:08:41.0 ADOLOR CORP VNDA 9.43% view
B -16.84% 2007-12-06 08:58:26.0 ADOLOR CORP adlr 13.65% view
B -92.92% 2007-09-10 08:45:54.0 Vanda Pharmaceuticals Inc VNDA 10.01% view
B -63.62% 2007-05-09 07:57:22.0 PALOMAR MEDICAL TECHNOLOGIES INC PMTI 10.08% view
B -42.96% 2007-04-12 11:36:28.0 ADOLOR CORP adlr 11.35% view
S 2006-06-02 00:00:00.0 RBC Bearings INC BIOI 0.0% view
S 2006-02-14 00:00:00.0 QUINTON CARDIOLOGY SYSTEMS INC SSFT 4.07% view
B -0.11% 2006-02-14 00:00:00.0 AMEGY BANCORPORATION GEHL 7.21% view
B -84.21% 2006-02-13 00:00:00.0 GREENBRIER COMPANIES INC JRCC 5.66% view
B 24.41% 2006-02-13 00:00:00.0 SUPERIOR ENERGY SERVICES INC GTIV 9.67% view
B -45.64% 2006-02-13 00:00:00.0 STEWART ENTERPRISES INC STEI 9.77% view
B -19.85% 2006-02-13 00:00:00.0 IMMUCOR INC BLUD 6.02% view
B 2006-02-13 00:00:00.0 PALOMAR MEDICAL TECHNOLOGIES INC slvn 2.84% view
B 17.63% 2006-02-13 00:00:00.0 OSI PHARMACEUTICALS INC OSIP 6.05% view
S 2006-02-10 00:00:00.0 EXAR CORP VSEA 2.59% view
S 2006-02-10 00:00:00.0 FLEETWOOD ENTERPRISES INC WAB 0.28% view
S 2006-02-10 00:00:00.0 WABASH NATIONAL CORP SRX 4.38% view
B 34.76% 2006-02-10 00:00:00.0 LECG CORP SKIL 7.22% view
S 2006-02-10 00:00:00.0 ACTUANT CORP PLMD 7.76% view
S 2006-02-10 00:00:00.0 NAVIGANT CONSULTING INC SMTC 0.0% view
S 2006-02-10 00:00:00.0 ATMI INC ATMI 6.33% view
S 2006-02-10 00:00:00.0 ADVANCED MAGNETICS INC CNQR 0.54% view
S 2006-02-10 00:00:00.0 MANOR CARE INC AVO 3.61% view
S 2006-02-10 00:00:00.0 RSA SECURITY INC POWI 5.58% view
S 2006-02-10 00:00:00.0 COST PLUS INC CPWM 4.58% view
S 2006-02-10 00:00:00.0 WRIGHT MEDICAL GROUP INC WMGI 0.0% view
B -20.06% 2006-02-10 00:00:00.0 RADIO ONE INC ROIA 7.34% view
B 33.28% 2005-02-14 00:00:00.0 VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES INC VSEA 7.72% view
S 2005-02-14 00:00:00.0 ARMOR HOLDINGS INC AH 0.0% view
S 2005-02-14 00:00:00.0 W WHQ 0.0% view
B 2005-02-14 00:00:00.0 BIOSOURCE INTERNATIONAL INC BIOI 5.82% view
B 70.30% 2005-02-14 00:00:00.0 ACTUATE CORP WAB 5.77% view
B -25.32% 2005-02-14 00:00:00.0 SUPERIOR ENERGY SERVICES INC WNC 6.25% view
S 2005-02-14 00:00:00.0 SRA INTERNATIONAL INC NDC 0.0% view
B -9.41% 2005-02-14 00:00:00.0 LIONBRIDGE TECHNOLOGIES INC XPRT 8.1% view
S 2005-02-14 00:00:00.0 WILSON GREATBATCH TECHNOLOGIES INC QUIN 11.26% view
S 2005-02-14 00:00:00.0 POLYMEDICA CORP NCI 7.03% view
B -19.39% 2005-02-14 00:00:00.0 SEMTECH CORP KEA 7.38% view
S 2005-02-14 00:00:00.0 SCANSOFT INC SSFT 0.0% view
B 2005-02-14 00:00:00.0 ADVANCED MAGNETICS INC AVM 6.31% view
S 2005-02-14 00:00:00.0 CONCUR TECHNOLOGIES INC CNQR 10.55% view
B 15.30% 2005-02-14 00:00:00.0 MANOR CARE INC HCR 5.55% view
S 2005-02-14 00:00:00.0 RSA SECURITY INC RSAS 0.174% view
B -18.29% 2005-02-14 00:00:00.0 DELTA & PINE LAND CO DLP 5.86% view
B 2005-02-14 00:00:00.0 ADVANCED DIGITAL INFORMATION CORP ADIC 7.31% view
S 2005-02-14 00:00:00.0 APOLLO GROUP INC WMGI 7.3% view
S 2005-02-14 00:00:00.0 LAUREATE EDUCATION EWBC 6.08% view
B 30.65% 2005-02-14 00:00:00.0 LEAPFROG ENTERPRISES INC TSAI 5.91% view
S 2005-02-14 00:00:00.0 WASTE CONNECTIONS INC GTRC 0.0% view
S 2005-02-14 00:00:00.0 RADIO ONE INC ROIA 0.0% view
B 65.28% 2004-10-08 00:00:00.0 POLYMEDICA CORP VSEA 6.18% view
S 2004-08-12 00:00:00.0 VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES INC VSEA 6.19% view
S 2004-08-12 00:00:00.0 ARMOR HOLDINGS INC AH 9.35% view
B 75.24% 2004-08-12 00:00:00.0 ALLIANCE IMAGING INC AIQ 5.38% view
B 2004-08-12 00:00:00.0 NDCHEALTH CORP NDC 8.04% view
B 66.80% 2004-08-12 00:00:00.0 NDCHEALTH CORP NDC 5.48% view
B 3.74% 2004-08-12 00:00:00.0 WILSON GREATBATCH TECHNOLOGIES INC GB 8.21% view
B -26.29% 2004-08-12 00:00:00.0 APOLLO GROUP INC APOL 5.6% view
B 27.15% 2004-08-12 00:00:00.0 WASTE CONNECTIONS INC WCN 6.77% view
S 2004-08-05 00:00:00.0 SANTARUS INC CCRN n/a view
S 2004-07-27 00:00:00.0 CROSS COUNTRY HEALTHCARE INC CCRN 0.0% view
B 19.89% 2004-07-27 00:00:00.0 ENTRAVISION COMMUNICATIONS CORP EVC 5.9% view
B 41.71% 2004-07-27 00:00:00.0 W WHQ 8.97% view
B 85.70% 2004-07-27 00:00:00.0 W WHQ 6.24% view
B -10.46% 2004-07-27 00:00:00.0 SRA INTERNATIONAL INC SRX 7.0% view
B 50.91% 2004-07-27 00:00:00.0 SEACOR HOLDINGS INC CKH 0.0% view
B 54.27% 2004-07-27 00:00:00.0 PSS WORLD MEDICAL INC PSSI 0.0% view
B 2004-07-27 00:00:00.0 QUINTON CARDIOLOGY SYSTEMS INC QUIN 14.16% view
B -1.92% 2004-07-27 00:00:00.0 SEMTECH CORP SMTC 5.56% view
B 45.01% 2004-07-27 00:00:00.0 PHILADELPHIA CONSOLIDATED HOLDING CORP PHLY 7.18% view
B 13.26% 2004-07-27 00:00:00.0 FORRESTER RESEARCH INC FORR 0.0% view
B 25.49% 2004-07-27 00:00:00.0 P F CHANGS CHINA BISTRO INC PFCB 4.8% view
B 12.49% 2004-07-27 00:00:00.0 STERICYCLE INC SRCL 4.6% view
B 2004-07-27 00:00:00.0 INFORMATION HOLDINGS INC IHI 6.2% view
B 2004-07-27 00:00:00.0 SELECT MEDICAL CORP SEM 5.86% view
B 18.45% 2004-07-27 00:00:00.0 POWER INTEGRATIONS INC POWI 9.31% view
B -11.76% 2004-07-27 00:00:00.0 WRIGHT MEDICAL GROUP INC WMGI 7.6% view
B 2004-07-27 00:00:00.0 LAUREATE EDUCATION slvn 6.89% view
B 8.80% 2004-07-27 00:00:00.0 EAST WEST BANCORP INC EWBC 7.23% view
B -51.96% 2004-07-27 00:00:00.0 UCBH HOLDINGS INC UCBH 4.8% view
B 56.97% 2004-07-27 00:00:00.0 GUITAR CENTER INC GTRC 8.38% view
B 21.75% 2004-07-26 00:00:00.0 CROSS COUNTRY HEALTHCARE INC CCRN 0.0% view
B 21.75% 2004-07-26 00:00:00.0 CROSS COUNTRY HEALTHCARE INC CCRN n/a view
B 2004-07-21 00:00:00.0 ATLANTIC COAST AIRLINES HOLDINGS INC acai 5.06% view
B 2004-07-21 00:00:00.0 ARADIGM CORP ARDM 0.0% view
B 93.24% 2004-07-21 00:00:00.0 CV THERAPEUTICS INC CVTX 5.41% view
B 11.82% 2004-06-14 00:00:00.0 LIONBRIDGE TECHNOLOGIES INC LIOX 10.24% view
B -4.44% 2004-06-10 00:00:00.0 POLYMEDICA CORP PLMD 10.69% view
B -24.86% 2004-06-10 00:00:00.0 CONCUR TECHNOLOGIES INC CNQR 8.83% view
B -24.86% 2004-06-10 00:00:00.0 COST PLUS INC CPWM 9.47% view
B 2002-12-05 00:00:00.0 ARMOR HOLDINGS INC QUIN 12.3% 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.
** Since most institutions are long investors, only returns for long transactions are shown here.