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WESTFIELD CAPITAL MANAGEMENT CO LLC
- As of  09/22/24, 01:04:40 PM:   187 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
S 2019-09-04 13:59:51.0 Correvio Pharma Corp CRME 12.21% view
S 2019-02-07 07:03:51.0 Correvio Pharma Corp CRME 11.9% view
S 2018-03-02 16:29:41.0 Cardiome Pharma Corp CRME 13.74% view
B 2017-09-07 16:19:59.0 Cardiome Pharma Corp CRME 16.75% view
B 2017-08-03 15:55:56.0 HEXCEL CORP HURN 0.0% view
S 2017-04-07 15:22:45.0 ARIAD PHARMACEUTICALS INC ARIA 0.0% view
B 2017-02-10 10:52:48.0 MERRIMACK PHARMACEUTICALS INC MACK 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 SUPERIOR ENERGY SERVICES INC PTCT 0.0% view
S 2017-02-10 10:47:41.0 Cardiome Pharma Corp CRME 17.01% view
B 2016-02-10 17:01:29.0 RUSH ENTERPRISES INC RUSHB 5.38% view
B 2016-02-10 16:59:58.0 MERRIMACK PHARMACEUTICALS INC MACK 6.28% view
S 2016-02-09 20:05:19.0 AMAG 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
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
S 2015-02-09 19:59:17.0 WRIGHT MEDICAL GROUP INC NUAN 0.0% view
B 2015-02-09 19:54:32.0 MWI Veterinary Supply DVAX 6.45% view
B 2015-02-09 19:48:10.0 ARTHROCARE 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 OFIX 0.0% view
S 2014-02-07 09:22:18.0 TILLY TWI 0.0% view
S 2014-02-07 09:18:10.0 PALOMAR MEDICAL TECHNOLOGIES LLC PMTI 0.0% view
S 2014-02-07 09:16:05.0 Huron Consulting Group Inc HURN 0.0% view
S 2014-02-07 09:12:44.0 FXCM Inc FXCM 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 SKILLED HEALTHCARE GROUP INC 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 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 3.43% view
B -0.52% 2012-03-27 10:40:53.0 FXCM Inc FXCM 6.06% view
S 2012-03-27 10:25:52.0 ARTHROCARE CORP ARTC 6.88% view
B 29.47% 2012-02-13 11:03:07.0 STEWART ENTERPRISES INC STEI 7.32% view
S 2012-02-13 10:55:49.0 METABOLIX MBLX 8.14% view
S 2012-02-13 10:47:58.0 IMMUCOR INC BLUD 1.0% view
S 2012-02-13 10:40:18.0 EXTERRAN HOLDINGS 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
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 ADOLOR CORP ADLR 0.0% view
S 2011-02-11 09:57:36.0 HIBBETT SPORTS 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 ORTHOFIX INTERNATIONAL N V 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 SANTARUS INC n/a 14.18% view
S 2010-08-09 16:02:51.0 WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORP WAB 0.0% view
B 54.13% 2010-02-11 07:32:19.0 STEWART ENTERPRISES INC STEI 5.66% view
S 2010-02-11 07:29:10.0 RBC Bearings INC ROLL 0.47% view
S 2010-02-11 07:26:03.0 NAVIGANT CONSULTING INC NCI 4.85% view
B 44.53% 2010-02-11 07:22:30.0 HIBBETT SPORTS INC HIBB 5.57% view
B 14.31% 2010-02-11 07:17:49.0 EXTERRAN HOLDINGS INC EXH 6.26% view
S 2010-02-11 07:13:17.0 CORINTHIAN COLLEGES INC COCO 0.0% view
S 2010-02-11 07:09:36.0 ATMI INC ATMI 3.55% view
S 2010-02-11 07:05:35.0 ACTUANT CORP ATU 0.0% view
B 2009-11-09 09:58:05.0 SKILLED HEALTHCARE GROUP INC n/a 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 SNTS 13.86% view
S 2009-02-04 09:45:58.0 MEDICINES CO ATMI 6.32% view
S 2009-02-04 09:43:58.0 Nuance Communications GEHL 0.0% view
S 2009-02-04 09:40:57.0 SKILLSOFT PUBLIC LIMITED CO SKIL 6.63% view
S 2009-02-04 09:37:57.0 SRA INTERNATIONAL INC SRX 4.84% view
S 2009-02-04 09:34:56.0 CARDIONET INC POWI 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 ACTUANT CORP ACIW 3.39% view
S 2009-02-04 09:12:23.0 CORINTHIAN COLLEGES INC APOG 0.0% view
S 2009-02-04 09:08:53.0 SCHAWK INC IBI 0.0% view
S 2009-01-09 09:04:11.0 SANTARUS INC 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 ALEXION PHARMACEUTICALS INC DNEX 3.48% view
B 2008-01-10 09:19:25.0 ACI WORLDWIDE asvi 0.0% view
S 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 VCI 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 ACTUANT CORP OSIP 8.22% view
S 2008-01-10 09:08:08.0 Fidelity National Information Services 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 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 Nuance Communications NUAN 5.27% view
B -21.95% 2008-01-10 08:56:23.0 SKILLSOFT PUBLIC LIMITED CO SKIL 7.45% view
B -33.59% 2008-01-10 08:52:23.0 SCHAWK INC SGK 2.68% view
B -32.33% 2008-01-10 08:51:44.0 SANTARUS INC SNTS 16.44% view
S 2008-01-07 06:08:41.0 Vanda Pharmaceuticals Inc 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 BIOSOURCE INTERNATIONAL INC BIOI 0.0% view
S 2006-02-14 00:00:00.0 Nuance Communications 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 ATMI INC ATMI 6.33% view
S 2006-02-10 00:00:00.0 CONCUR TECHNOLOGIES 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 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 WABASH NATIONAL CORP WNC 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
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 LECG CORP GB 0.0% view
B 26.15% 2005-02-14 00:00:00.0 QUINTON CARDIOLOGY SYSTEMS INC PLMD 10.55% view
B -2.66% 2005-02-14 00:00:00.0 NAVIGANT CONSULTING INC SMTC 6.86% view
B 2005-02-14 00:00:00.0 KEANE INC SSFT 6.56% 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 ADVANCED MEDICAL OPTICS INC RSAS 0.174% view
B -18.29% 2005-02-14 00:00:00.0 POWER INTEGRATIONS INC DLP 5.86% view
B 2005-02-14 00:00:00.0 COST PLUS INC 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 WCN 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 VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES INC VSEA 6.18% view
S 2004-08-12 00:00:00.0 ARMOR HOLDINGS INC AH 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 GB 5.48% view
B 3.74% 2004-08-12 00:00:00.0 WILSON GREATBATCH TECHNOLOGIES INC NCI 8.21% view
B -26.29% 2004-08-12 00:00:00.0 APOLLO GROUP INC LF 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 CROSS COUNTRY HEALTHCARE 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 SUPERIOR ENERGY SERVICES 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 NMS COMMUNICATIONS CORP 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 POWER INTEGRATIONS 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% 2004-07-27 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 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 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.