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WESTFIELD CAPITAL MANAGEMENT CO LLC
- As of  06/14/24, 06:33:13 PM:   164 Insider Transactions.

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Buy/Sell* 1 Yr Return** Filed Date Subject Symbol Pct Owned Details
S 2020-01-07 11:41:54.0 MEDICINES CO CRME 100.0% view
B 2019-04-05 08:25:07.0 Correvio Pharma Corp MDCO 6.23% view
S 2018-07-03 14:07:18.0 Cardiome Pharma Corp CRME 11.9% view
S 2018-03-02 16:29:41.0 Cardiome Pharma Corp CRME 13.74% view
S 2017-08-08 11:23:17.0 Cardiome Pharma Corp HXL 0.0% view
S 2017-04-07 18:31:30.0 MERRIMACK PHARMACEUTICALS INC MACK 0.0% view
S 2017-02-10 10:52:48.0 MERRIMACK PHARMACEUTICALS INC MACK 7.0% view
S 2017-02-10 10:50:55.0 ARIAD PHARMACEUTICALS INC XPO 0.0% view
S 2017-02-10 10:48:15.0 PTC THERAPEUTICS PTCT 0.0% view
B 2016-09-09 16:49:27.0 Wright Medical Group N WMGI 2.19% view
B 2016-02-10 16:59:58.0 PTC THERAPEUTICS PTCT 6.28% view
S 2016-02-09 20:05:19.0 ARIAD PHARMACEUTICALS INC AMAG 5.26% view
S 2016-02-09 20:03:32.0 MWI Veterinary Supply MWIV 0.0% view
S 2016-02-05 17:06:13.0 Aegerion Pharmaceuticals AEGR 0.0% view
S 2015-11-09 12:05:00.0 Cardiome Pharma Corp CRME 16.4% view
B 2015-07-10 17:50:12.0 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 19:57:08.0 Nuance Communications NUAN 6.24% view
B 2015-02-09 19:51:01.0 DYNAVAX TECHNOLOGIES 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 0.0% view
S 2014-02-07 09:22:18.0 TILLY TWI 0.0% view
S 2014-02-07 09:16:32.0 PALOMAR MEDICAL TECHNOLOGIES LLC PMTI 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 ALEXION PHARMACEUTICALS INC ALXN 0.0% view
S 2013-11-07 16:10:20.0 ARTHROCARE CORP ARTC 10.52% view
B -20.04% 2013-02-08 10:20:11.0 XPO Logistics TLYS 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 ATMI INC ATMI 3.97% view
B 93.38% 2013-02-08 09:31:06.0 Huron Consulting Group Inc HURN 5.72% view
B 104.26% 2012-03-27 11:08:29.0 TESORO CORP TSO 5.65% view
S 2012-03-27 10:54:49.0 ORTHOFIX INTERNATIONAL N V OFIX 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 SANTARUS INC SNTS 0.0% view
S 2012-02-13 10:52:01.0 ORTHOFIX INTERNATIONAL N V OFIX 1.0% view
S 2012-02-13 10:40:18.0 HIBBETT SPORTS INC EXH 0.0% view
B -10.04% 2012-02-13 10:31:55.0 DIONEX CORP ATMI 5.49% view
B 93.52% 2012-02-13 10:22:32.0 TESORO CORP TSO 5.48% view
B 21.26% 2012-02-13 10:12:23.0 ARTHROCARE CORP ARTC 6.93% view
S 2011-12-09 13:08:48.0 METABOLIX MBLX 10.56% view
S 2011-06-10 09:42:06.0 METABOLIX MBLX 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 EXTERRAN HOLDINGS INC EXH 4.3% 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 SUN HEALTHCARE GROUP INC SUNH 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 SUN HEALTHCARE GROUP INC SUNH 5.19% view
S 2010-02-11 07:30:18.0 SKILLSOFT PUBLIC LIMITED CO SKIL 4.15% view
S 2010-02-11 07:27:15.0 NAVIGANT CONSULTING INC NCI 4.85% view
S 2010-02-11 07:22:30.0 HIBBETT SPORTS INC HIBB 5.57% view
S 2010-02-11 07:15:47.0 EXTERRAN HOLDINGS 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 10.5% view
B 2009-06-09 11:33:28.0 SANTARUS INC SNTS 13.86% view
S 2009-02-04 09:44:58.0 ATMI INC NUAN 4.49% view
S 2009-02-04 09:42:50.0 SKILLSOFT PUBLIC LIMITED CO SKIL 6.5% view
S 2009-02-04 09:39:27.0 SRA INTERNATIONAL INC SRX 0.0% view
S 2009-02-04 09:37:30.0 CARDIONET INC BEAT 5.51% view
S 2009-02-04 09:27:55.0 OSI PHARMACEUTICALS INC OSIP 0.0% view
B -4.63% 2009-02-04 09:21:25.0 GENTIVA HEALTH SERVICES INC n/a 4.1% view
B 5.61% 2009-02-04 09:16:39.0 PALOMAR MEDICAL TECHNOLOGIES INC ATU 6.24% view
B -32.44% 2009-02-04 09:13:54.0 ACI WORLDWIDE 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
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 09:17:48.0 Wengen Alberta n/a 0.0% view
S 2008-01-10 09:16:27.0 GREENBRIER COMPANIES INC GBX 0.0% view
B -81.68% 2008-01-10 09:15:17.0 MEDCO HEALTH SOLUTIONS INC MHS 0.0% view
B -30.68% 2008-01-10 09:12:48.0 ELAN CORP PLC 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 VNDA 8.56% view
B -66.80% 2008-01-10 09:04:45.0 HEXCEL CORP hxl 0.24% view
S 2008-01-10 09:03:25.0 GENTIVA HEALTH SERVICES INC GTIV 5.05% view
B -37.32% 2008-01-10 08:58:49.0 STEWART ENTERPRISES INC STEI 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 SCHAWK INC SGK 2.68% view
B -57.45% 2008-01-07 06:08:42.0 SANTARUS INC adlr 18.86% view
B -58.51% 2007-12-06 08:59:57.0 ADOLOR CORP adlr 14.69% 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 ADOLOR CORP PMTI 10.08% view
B 76.37% 2007-04-12 11:36:28.0 ADOLOR CORP adlr 11.35% view
S 2006-02-14 00:00:00.0 QUINTON CARDIOLOGY SYSTEMS INC QUIN 0.0% view
S 2006-02-14 00:00:00.0 AMEGY BANCORPORATION SWBT 0.0% view
B -84.21% 2006-02-13 00:00:00.0 GREENBRIER COMPANIES INC GBX 5.38% 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 P F CHANGS CHINA BISTRO INC PFCB 6.02% view
B 2006-02-13 00:00:00.0 LAUREATE EDUCATION slvn 2.84% view
B 17.63% 2006-02-13 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn 6.05% view
S 2006-02-10 00:00:00.0 VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES INC FLE 0.0% view
S 2006-02-10 00:00:00.0 WABASH NATIONAL CORP WNC 0.0% view
S 2006-02-10 00:00:00.0 LECG CORP XPRT 1.39% view
S 2006-02-10 00:00:00.0 ACTUANT CORP ATU 7.01% 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 CONCUR TECHNOLOGIES INC CNQR 4.4% view
S 2006-02-10 00:00:00.0 ADVANCED MEDICAL OPTICS INC RSAS 0.0% view
S 2006-02-10 00:00:00.0 COST PLUS INC CPWM 0.0% view
S 2006-02-10 00:00:00.0 WRIGHT MEDICAL GROUP INC WMGI 0.0% view
B 26.98% 2006-02-10 00:00:00.0 RADIO ONE INC ROIA 0.0% 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 W WHQ 0.0% view
B 2005-02-14 00:00:00.0 BIOSOURCE INTERNATIONAL INC BIOI 5.82% view
S 2005-02-14 00:00:00.0 WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORP WAB 5.77% view
S 2005-02-14 00:00:00.0 WABASH NATIONAL CORP WNC 6.38% view
S 2005-02-14 00:00:00.0 NDCHEALTH CORP LIOX 0.0% view
S 2005-02-14 00:00:00.0 WILSON GREATBATCH TECHNOLOGIES INC GB 0.0% view
S 2005-02-14 00:00:00.0 POLYMEDICA CORP PLMD 10.55% view
B -19.39% 2005-02-14 00:00:00.0 SEMTECH CORP SMTC 7.38% view
S 2005-02-14 00:00:00.0 SCANSOFT INC PHLY 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 0.0% view
B 2005-02-14 00:00:00.0 MANOR CARE INC AVO 6.41% view
S 2005-02-14 00:00:00.0 POWER INTEGRATIONS INC POWI 7.05% view
S 2005-02-14 00:00:00.0 COST PLUS INC CPWM 11.52% view
S 2005-02-14 00:00:00.0 APOLLO GROUP INC APOL 7.3% view
S 2005-02-14 00:00:00.0 EAST WEST BANCORP INC EWBC 6.08% 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 RADIO ONE INC ROIA 5.0% view
S 2005-01-10 00:00:00.0 POLYMEDICA CORP PLMD 10.0% view
S 2004-08-12 00:00:00.0 VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES INC VSEA 7.76% 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 WILSON GREATBATCH TECHNOLOGIES INC GB 5.48% view
B 2.52% 2004-08-12 00:00:00.0 NAVIGANT CONSULTING INC NCI 8.21% 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 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 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 45.01% 2004-07-27 00:00:00.0 KEANE INC KEA 6.58% view
B 13.26% 2004-07-27 00:00:00.0 PHILADELPHIA CONSOLIDATED HOLDING CORP FORR 0.0% 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 SELECT MEDICAL CORP SEM 0.0% view
B 18.45% 2004-07-27 00:00:00.0 RSA SECURITY INC RSAS 5.67% view
B -11.76% 2004-07-27 00:00:00.0 POWER INTEGRATIONS INC POWI 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 7.86% view
B -36.72% 2004-07-27 00:00:00.0 THERMA WAVE INC twav 0.0% view
B 56.97% 2004-07-27 00:00:00.0 GUITAR CENTER INC GTRC 6.55% 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 ADVANCED NEUROMODULATION SYSTEMS INC 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 9.98% view
B -4.44% 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.