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WESTFIELD CAPITAL MANAGEMENT CO LLC
- As of  06/09/24, 01:44:24 AM:   185 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 MEDICINES CO CRME 100.0% view
B 2019-09-04 13:59:51.0 MEDICINES CO CRME 13.27% view
S 2018-05-02 07:51:52.0 Cardiome Pharma Corp CRME 12.62% view
S 2017-12-07 18:32:24.0 Cardiome Pharma Corp CRME 14.59% view
S 2017-08-08 11:23:17.0 HEXCEL CORP HXL 0.0% view
S 2017-04-07 18:31:30.0 MERRIMACK PHARMACEUTICALS INC MACK 0.0% view
B 2017-04-07 15:21:54.0 Cardiome Pharma Corp CRME 7.0% view
S 2017-02-10 10:51:58.0 RUSH ENTERPRISES INC ARIA 2.55% view
S 2017-02-10 10:50:27.0 XPO Logistics SPN 0.0% view
S 2017-02-10 10:48:15.0 PTC THERAPEUTICS AMAG 0.0% view
B 2016-09-09 16:49:27.0 Cardiome Pharma Corp WMGI 2.19% view
B 2016-02-10 17:00:44.0 PTC THERAPEUTICS PTCT 5.46% view
S 2016-02-09 20:05:19.0 ARIAD PHARMACEUTICALS INC AMAG 5.26% view
S 2016-02-09 20:03:32.0 Cardiome Pharma Corp MWIV 0.0% view
S 2016-02-05 17:06:13.0 DYNAVAX TECHNOLOGIES CORP AEGR 0.0% view
B 2015-11-09 12:05:00.0 Cardiome Pharma Corp CRME 16.4% view
B 2015-08-07 16:12:26.0 Cardiome Pharma Corp CRME 16.01% view
B 2015-06-09 17:17:40.0 Cardiome Pharma Corp CRME 13.34% view
B 2015-03-06 13:08:54.0 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 ARTHROCARE CORP ARTC 9.4% view
B 2015-02-09 19:47:43.0 Aegerion Pharmaceuticals AEGR 9.69% view
B 2014-11-07 19:38:38.0 Aegerion Pharmaceuticals AEGR 11.76% view
S 2014-07-09 18:30:55.0 ARTHROCARE CORP ARTC 9.4% view
S 2014-02-07 10:20:45.0 TILLY TLYS 0.0% view
S 2014-02-07 09:18:29.0 STEWART ENTERPRISES INC STEI 0.0% view
S 2014-02-07 09:16:32.0 XPO Logistics XPO 3.73% view
S 2014-02-07 09:14:32.0 Huron Consulting Group Inc HURN 3.08% view
S 2014-02-07 09:10:56.0 ELAN CORP PLC n/a 0.0% view
S 2014-02-07 09:05:14.0 ATMI INC ALXN 0.0% view
B 42.85% 2013-11-07 16:10:20.0 ARTHROCARE CORP ARTC 10.52% view
B 50.47% 2013-02-08 10:40:26.0 XPO Logistics XPO 7.77% view
S 2013-02-08 10:17:22.0 FXCM Inc FXCM 4.63% view
B 36.82% 2013-02-08 10:04:51.0 ARTHROCARE CORP ARTC 8.81% view
S 2013-02-08 09:51:57.0 TITAN INTERNATIONAL INC TWI 3.97% view
B 93.38% 2013-02-08 09:31:06.0 Huron Consulting Group Inc HURN 5.72% view
B 51.88% 2012-03-27 11:03:02.0 STEWART ENTERPRISES INC 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 ATMI 5.71% view
S 2012-03-27 09:50:56.0 SUN HEALTHCARE GROUP INC SUNH 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
B -10.04% 2012-02-13 10:36:24.0 DIONEX CORP DNEX 5.49% view
B 93.52% 2012-02-13 10:22:32.0 TITAN INTERNATIONAL INC TWI 5.48% view
B 21.26% 2012-02-13 10:12:23.0 FXCM Inc ARTC 6.93% view
B -70.70% 2011-12-09 13:08:48.0 METABOLIX MBLX 10.56% view
B -67.23% 2011-07-08 15:43:01.0 METABOLIX MBLX 11.5% view
S 2011-05-10 11:23:49.0 SANTARUS INC SNTS 8.27% view
S 2011-02-11 12:17:07.0 ACI WORLDWIDE ADLR 0.0% view
S 2011-02-11 09:57:36.0 EXTERRAN HOLDINGS INC HIBB 4.03% view
S 2011-02-11 09:52:32.0 MEDICINES CO NCI 0.0% view
S 2011-02-11 09:47:37.0 RBC Bearings INC ROLL 0.0% view
S 2011-02-11 09:42:41.0 STEWART ENTERPRISES INC SUNH 4.39% view
S 2010-12-08 09:09:40.0 SKILLED HEALTHCARE GROUP INC n/a 14.18% view
S 2010-08-09 16:02:51.0 SKILLED HEALTHCARE GROUP INC WAB 0.0% view
B 54.13% 2010-02-11 07:32:19.0 SUN HEALTHCARE GROUP INC STEI 5.66% view
S 2010-02-11 07:29:10.0 SKILLSOFT PUBLIC LIMITED CO ROLL 0.47% view
S 2010-02-11 07:26:03.0 OSI PHARMACEUTICALS INC NCI 4.85% view
B 44.53% 2010-02-11 07:22:30.0 MEDICINES CO HIBB 5.57% view
B 14.31% 2010-02-11 07:17:49.0 GENTIVA HEALTH SERVICES INC GTIV 6.26% view
S 2010-02-11 07:13:17.0 EAST WEST BANCORP INC EWBC 0.0% view
S 2010-02-11 07:09:36.0 CARDIONET INC ATMI 3.55% view
S 2010-02-11 07:05:35.0 ADOLOR CORP ATU 0.0% view
B 2009-11-09 09:58:05.0 SANTARUS INC SNTS 12.6% view
S 2009-09-09 07:42:56.0 ADOLOR CORP adlr 10.5% view
S 2009-06-09 11:33:28.0 ADOLOR CORP adlr 13.86% view
S 2009-02-04 09:45:58.0 MEDICINES CO mdco 6.32% view
S 2009-02-04 09:43:58.0 Nuance Communications NUAN 0.0% view
S 2009-02-04 09:40:57.0 SKILLSOFT PUBLIC LIMITED CO ROLL 6.63% view
S 2009-02-04 09:37:57.0 SRA INTERNATIONAL INC LAXN 4.84% view
S 2009-02-04 09:34:56.0 CARDIONET INC BEAT 0.0% view
S 2009-02-04 09:27:55.0 OSI PHARMACEUTICALS INC VSEA 0.0% view
B 2009-02-04 09:21:25.0 GENTIVA HEALTH SERVICES INC n/a 4.1% view
S 2009-02-04 09:18:39.0 NAVIGANT CONSULTING INC PMTI 4.61% view
S 2009-02-04 09:14:54.0 ACI WORLDWIDE ACIW 3.39% view
S 2009-02-04 09:12:23.0 APOGEE ENTERPRISES INC APOG 0.0% view
S 2009-02-04 09:08:53.0 INTERLINE BRANDS IBI 0.0% view
S 2009-01-09 09:04:11.0 ADOLOR CORP adlr 13.53% view
B 258.91% 2008-08-04 09:14:06.0 Vanda Pharmaceuticals Inc VNDA 10.715% view
B -46.48% 2008-01-10 09:19:29.0 DIONEX CORP DNEX 3.48% view
S 2008-01-10 09:19:25.0 ASV INC asvi 0.0% view
B 2008-01-10 09:17:12.0 Wengen Alberta n/a 0.0% view
B 17.72% 2008-01-10 09:15:31.0 GREENBRIER COMPANIES INC GBX 4.97% view
B -81.68% 2008-01-10 09:13:28.0 MEDCO HEALTH SOLUTIONS INC MHS 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 INTERLINE BRANDS IBI 5.49% view
B 2008-01-10 09:04:02.0 MANOR CARE INC HCR 12.0% view
S 2008-01-10 09:02:47.0 PALOMAR MEDICAL TECHNOLOGIES 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 SANTARUS INC 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 asvi 9.77% view
B -19.85% 2006-02-13 00:00:00.0 IMMUCOR INC PFCB 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 alxn 6.05% view
S 2006-02-10 00:00:00.0 VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES INC VSEA 2.59% view
S 2006-02-10 00:00:00.0 WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORP WAB 0.28% view
S 2006-02-10 00:00:00.0 SRA INTERNATIONAL INC SRX 4.38% view
B 34.76% 2006-02-10 00:00:00.0 SKILLSOFT PUBLIC LIMITED CO SKIL 7.22% view
S 2006-02-10 00:00:00.0 POLYMEDICA CORP PLMD 7.76% view
S 2006-02-10 00:00:00.0 SEMTECH CORP SMTC 0.0% view
S 2006-02-10 00:00:00.0 KEANE 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 ADVANCED MEDICAL OPTICS INC AVO 3.61% view
S 2006-02-10 00:00:00.0 POWER INTEGRATIONS INC POWI 5.58% view
S 2006-02-10 00:00:00.0 ADVANCED DIGITAL INFORMATION CORP ADIC 4.58% view
S 2006-02-10 00:00:00.0 LAUREATE EDUCATION slvn 0.0% view
B -20.06% 2006-02-10 00:00:00.0 RADIO ONE INC WNC 7.34% view
B 33.28% 2005-02-14 00:00:00.0 EXAR CORP VSEA 7.72% view
S 2005-02-14 00:00:00.0 FLEETWOOD ENTERPRISES INC AH 0.0% view
S 2005-02-14 00:00:00.0 ENTRAVISION COMMUNICATIONS CORP WHQ 0.0% view
B 2005-02-14 00:00:00.0 SANTARUS 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 NDCHEALTH CORP NDC 0.0% view
B -9.41% 2005-02-14 00:00:00.0 LECG CORP XPRT 8.1% view
S 2005-02-14 00:00:00.0 QUINTON CARDIOLOGY SYSTEMS INC QUIN 11.26% view
S 2005-02-14 00:00:00.0 NAVIGANT CONSULTING INC 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 PHILADELPHIA CONSOLIDATED HOLDING CORP PHLY 0.0% view
B 2005-02-14 00:00:00.0 ATMI INC AVM 6.31% view
S 2005-02-14 00:00:00.0 SOUTHWEST BANCORP OF TEXAS 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
S 2005-02-14 00:00:00.0 DELTA & PINE LAND CO DLP 5.86% view
S 2005-02-14 00:00:00.0 ADVANCED DIGITAL INFORMATION CORP ADIC 0.0% view
S 2005-02-14 00:00:00.0 WRIGHT MEDICAL GROUP INC WMGI 0.09% view
S 2005-02-14 00:00:00.0 EAST WEST BANCORP INC EWBC 0.0% view
S 2005-02-14 00:00:00.0 TRANSACTION SYSTEMS ARCHITECTS INC WCN 6.25% view
B -29.05% 2005-02-14 00:00:00.0 GUITAR CENTER INC GTRC 5.0% view
S 2005-01-10 00:00:00.0 LIONBRIDGE TECHNOLOGIES INC LIOX 10.0% view
B 65.28% 2004-08-12 00:00:00.0 VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES INC VSEA 6.18% view
B 25.15% 2004-08-12 00:00:00.0 ARMOR HOLDINGS INC AH 6.19% view
B -25.15% 2004-08-12 00:00:00.0 ARMOR HOLDINGS INC AH 9.35% view
B 2004-08-12 00:00:00.0 ALLIANCE IMAGING INC NDC 7.68% view
B 2004-08-12 00:00:00.0 NDCHEALTH CORP NDC 10.5% view
B 66.80% 2004-08-12 00:00:00.0 WILSON GREATBATCH TECHNOLOGIES INC GB 3.0% view
B 2.52% 2004-08-12 00:00:00.0 NAVIGANT CONSULTING INC APOL 5.33% view
B 27.15% 2004-08-12 00:00:00.0 LEAPFROG ENTERPRISES INC WCN 9.14% view
B -50.60% 2004-08-12 00:00:00.0 WASTE CONNECTIONS INC SNTS 10.83% view
S 2004-07-27 00:00:00.0 CROSS COUNTRY HEALTHCARE INC CCRN n/a view
B 19.89% 2004-07-27 00:00:00.0 CROSS COUNTRY HEALTHCARE INC EVC 7.17% view
B 41.71% 2004-07-27 00:00:00.0 ENTRAVISION COMMUNICATIONS CORP WHQ 8.69% view
B 41.71% 2004-07-27 00:00:00.0 W WHQ 10.06% view
B 85.70% 2004-07-27 00:00:00.0 SUPERIOR ENERGY SERVICES INC SPN 6.8% view
B 50.91% 2004-07-27 00:00:00.0 SRA INTERNATIONAL INC CKH 5.3% view
B 54.27% 2004-07-27 00:00:00.0 SEACOR HOLDINGS INC PSSI 6.68% view
B -40.73% 2004-07-27 00:00:00.0 NMS COMMUNICATIONS CORP NMSS 0.0% view
B 2004-07-27 00:00:00.0 QUINTON CARDIOLOGY SYSTEMS INC QUIN 13.99% view
B -16.30% 2004-07-27 00:00:00.0 KEANE INC KEA 6.58% view
B 45.01% 2004-07-27 00:00:00.0 PHILADELPHIA CONSOLIDATED HOLDING CORP PHLY 6.83% view
B 2004-07-27 00:00:00.0 SOUTHWEST BANCORP OF TEXAS INC SWBT 7.5% view
B 25.49% 2004-07-27 00:00:00.0 P F CHANGS CHINA BISTRO INC PFCB 5.84% view
B 2004-07-27 00:00:00.0 INFORMATION HOLDINGS INC IHI 0.0% view
B 2004-07-27 00:00:00.0 INFORMATION HOLDINGS INC SEM 0.0% view
B -26.81% 2004-07-27 00:00:00.0 RSA SECURITY INC RSAS 5.67% view
B 18.45% 2004-07-27 00:00:00.0 POWER INTEGRATIONS INC POWI 6.04% view
B -11.76% 2004-07-27 00:00:00.0 WRIGHT MEDICAL GROUP INC WMGI 6.4% view
B 2004-07-27 00:00:00.0 LAUREATE EDUCATION slvn 6.0% view
B 8.80% 2004-07-27 00:00:00.0 EAST WEST BANCORP INC EWBC 7.86% view
B 56.97% 2004-07-27 00:00:00.0 THERMA WAVE INC twav 0.0% view
B 21.75% 2004-07-27 00:00:00.0 GUITAR CENTER INC GTRC 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 ANSI 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 POLYMEDICA CORP PLMD 10.24% view
B -4.44% 2004-06-10 00:00:00.0 CONCUR TECHNOLOGIES INC CNQR 10.69% view
B -24.86% 2004-06-10 00:00:00.0 COST PLUS INC CPWM 11.67% 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 QUINTON CARDIOLOGY SYSTEMS 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.