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WESTFIELD CAPITAL MANAGEMENT CO LLC
- As of  04/30/24, 04:56:51 AM:   184 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 Correvio Pharma Corp CRME 100.0% view
B 2019-04-05 08:25:07.0 MEDICINES CO 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
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 MERRIMACK PHARMACEUTICALS INC MACK 0.0% view
B 2017-02-10 10:52:48.0 Cardiome Pharma Corp 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 SPN 0.0% view
S 2017-02-10 10:47:41.0 AMAG PHARMACEUTICALS INC CRME 17.01% view
B 2016-02-10 17:01:29.0 Wright Medical Group N RUSHB 5.38% view
B 2016-02-10 16:59:58.0 PTC THERAPEUTICS MACK 6.28% view
S 2016-02-09 20:05:19.0 ARIAD PHARMACEUTICALS INC ARIA 5.26% view
S 2016-02-09 20:03:32.0 Cardiome Pharma Corp CRME 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 TITAN INTERNATIONAL INC STEI 0.0% view
S 2014-02-07 09:16:32.0 PALOMAR MEDICAL TECHNOLOGIES LLC 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 FXCM Inc 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
S 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 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 ATMI 5.71% view
S 2012-03-27 09:50:56.0 ARTHROCARE CORP 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
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 TITAN INTERNATIONAL INC TWI 5.16% view
B 27.48% 2012-02-13 10:16:42.0 FXCM Inc FXCM 5.38% view
S 2012-02-13 10:06:01.0 METABOLIX 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 ACI WORLDWIDE ACIW 0.0% view
S 2011-02-11 09:59:55.0 EXTERRAN HOLDINGS INC EXH 4.3% view
S 2011-02-11 09:55:13.0 MEDICINES CO MDCO 0.0% view
B 39.35% 2011-02-11 09:49:32.0 NAVIGANT CONSULTING INC OFIX 5.02% view
S 2011-02-11 09:45:15.0 STEWART ENTERPRISES INC STEI 4.39% view
S 2010-12-08 09:09:40.0 SANTARUS INC n/a 14.18% view
B -49.62% 2010-08-09 16:02:51.0 SKILLED HEALTHCARE GROUP INC WAB 0.0% 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 OSIP 4.91% view
S 2010-02-11 07:24:07.0 NAVIGANT CONSULTING INC MDCO 2.11% view
S 2010-02-11 07:20:08.0 HIBBETT SPORTS INC GTIV n/a view
S 2010-02-11 07:15:47.0 EXTERRAN HOLDINGS INC EWBC 0.0% view
S 2010-02-11 07:11:46.0 CORINTHIAN COLLEGES INC BEAT n/a 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 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 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 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 NCI 4.61% view
S 2009-02-04 09:14:54.0 ACTUANT CORP ATU 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 SNTS 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
S 2008-01-10 09:19:25.0 ACI WORLDWIDE asvi 0.0% view
B 2008-01-10 09:17:48.0 MGI PHARMA INC n/a 0.0% view
S 2008-01-10 09:16:27.0 NAVIGANT CONSULTING INC GBX 0.0% view
B -21.34% 2008-01-10 09:15:17.0 CORINTHIAN COLLEGES INC MHS 0.0% view
B 2008-01-10 09:13:15.0 VALASSIS COMMUNICATIONS INC n/a 5.1% view
S 2008-01-10 09:11:26.0 ACTUANT CORP ATU 5.87% view
B -20.02% 2008-01-10 09:09:25.0 OSI PHARMACEUTICALS INC FIS 0.0% view
S 2008-01-10 09:06:25.0 Vanda Pharmaceuticals Inc VNDA 8.56% view
B 2008-01-10 09:04:45.0 HEXCEL CORP hxl 12.0% view
S 2008-01-10 09:02:47.0 GENTIVA HEALTH SERVICES INC GTIV 5.62% 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 RBC Bearings INC ROLL 2.68% view
B -32.33% 2008-01-10 08:51:44.0 ATMI INC ATMI 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 2006-02-14 00:00:00.0 BIOSOURCE INTERNATIONAL INC QUIN 0.0% view
S 2006-02-14 00:00:00.0 Nuance Communications SWBT 0.0% view
B -23.04% 2006-02-13 00:00:00.0 GEHL CO GEHL 5.38% view
B 23.25% 2006-02-13 00:00:00.0 James River Coal CO SPN 1.64% view
B 38.53% 2006-02-13 00:00:00.0 GENTIVA HEALTH SERVICES INC STEI 5.11% view
B 6.65% 2006-02-13 00:00:00.0 ASV INC BLUD 5.48% view
B 45.52% 2006-02-13 00:00:00.0 P F CHANGS CHINA BISTRO INC PMTI 5.31% view
B 15.09% 2006-02-13 00:00:00.0 OSI PHARMACEUTICALS INC OSIP 7.86% view
S 2006-02-13 00:00:00.0 EXAR CORP EXAR 0.0% view
S 2006-02-10 00:00:00.0 FLEETWOOD ENTERPRISES 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 SRA INTERNATIONAL INC XPRT 1.39% view
B -10.33% 2006-02-10 00:00:00.0 ACTUANT CORP ATU 7.01% view
S 2006-02-10 00:00:00.0 NAVIGANT CONSULTING INC NCI 5.84% view
S 2006-02-10 00:00:00.0 KEANE INC KEA 0.0% view
S 2006-02-10 00:00:00.0 ADVANCED MAGNETICS INC AVM 5.62% 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 ADIC 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 EXAR CORP EXAR 7.72% view
B 15.48% 2005-02-14 00:00:00.0 FLEETWOOD ENTERPRISES INC FLE 6.58% view
S 2005-02-14 00:00:00.0 ENTRAVISION COMMUNICATIONS CORP EVC 0.0% view
B -8.53% 2005-02-14 00:00:00.0 SANTARUS INC SNTS 14.36% view
B 37.25% 2005-02-14 00:00:00.0 ACTUATE CORP ACTU 9.02% view
S 2005-02-14 00:00:00.0 SUPERIOR ENERGY SERVICES INC SPN 0.199% view
S 2005-02-14 00:00:00.0 SRA INTERNATIONAL INC SRX 6.38% view
S 2005-02-14 00:00:00.0 LIONBRIDGE TECHNOLOGIES INC LIOX 0.0% view
S 2005-02-14 00:00:00.0 WILSON GREATBATCH TECHNOLOGIES INC 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 SEMTECH CORP SMTC 6.86% view
B 2005-02-14 00:00:00.0 KEANE INC SSFT 6.56% view
B 9.27% 2005-02-14 00:00:00.0 PHILADELPHIA CONSOLIDATED HOLDING CORP ATMI 9.67% view
S 2005-02-14 00:00:00.0 SOUTHWEST BANCORP OF TEXAS INC SWBT 7.39% view
S 2005-02-14 00:00:00.0 INFORMATION HOLDINGS INC IHI 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 RSA SECURITY INC RSAS 0.174% view
S 2005-02-14 00:00:00.0 DELTA & PINE LAND CO DLP 11.52% 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 slvn 0.09% view
S 2005-02-14 00:00:00.0 EAST WEST BANCORP INC LF 0.0% view
S 2005-02-14 00:00:00.0 WASTE CONNECTIONS 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
B 65.28% 2004-08-12 00:00:00.0 VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES INC VSEA 7.76% view
B 25.15% 2004-08-12 00:00:00.0 ARMOR HOLDINGS INC AH 10.7% view
B 75.24% 2004-08-12 00:00:00.0 ALLIANCE IMAGING INC AIQ 3.0% view
B 2004-08-12 00:00:00.0 NDCHEALTH CORP 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 -26.29% 2004-08-12 00:00:00.0 APOLLO GROUP INC APOL 5.33% 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 SNTS 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 SUPERIOR ENERGY SERVICES INC SPN 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 -40.73% 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 13.99% view
B -16.30% 2004-07-27 00:00:00.0 SEMTECH CORP SMTC 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 FORRESTER RESEARCH INC FORR 7.5% 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 -26.81% 2004-07-27 00:00:00.0 SELECT MEDICAL CORP 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 -36.72% 2004-07-27 00:00:00.0 UCBH HOLDINGS 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 2004-07-26 00:00:00.0 CROSS COUNTRY HEALTHCARE INC acai 0.0% view
B 44.44% 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 0.0% view
B -39.54% 2004-07-21 00:00:00.0 LIONBRIDGE TECHNOLOGIES INC LIOX 10.39% view
B 11.82% 2004-06-10 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 10.9% view
B 72.30% 2004-06-10 00:00:00.0 COST PLUS INC AH 10.0% 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.