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WESTFIELD CAPITAL MANAGEMENT CO LLC
- As of  06/15/24, 01:06:25 PM:   174 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 MDCO 1.71% view
S 2019-09-04 13:59:51.0 Correvio Pharma Corp CRME 12.21% view
S 2019-02-07 07:03:51.0 Cardiome Pharma Corp CRME 11.9% view
S 2018-03-02 16:29:41.0 Cardiome Pharma Corp CRME 13.74% view
S 2017-09-07 16:19:59.0 Cardiome Pharma Corp CRME 0.0% view
S 2017-04-07 18:31:30.0 Huron Consulting Group Inc MACK 0.0% view
S 2017-04-07 15:21:54.0 Cardiome Pharma Corp CRME 15.93% view
S 2017-02-10 10:52:26.0 RUSH ENTERPRISES INC RUSHB 2.78% view
S 2017-02-10 10:50:55.0 XPO Logistics XPO 0.0% view
S 2017-02-10 10:49:24.0 PTC THERAPEUTICS 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
B 2016-02-09 20:05:19.0 AMAG PHARMACEUTICALS INC AMAG 5.26% view
S 2016-02-05 17:06:59.0 MWI Veterinary Supply DVAX 0.0% view
B 2016-02-05 17:05:25.0 Aegerion Pharmaceuticals CRME 18.67% view
S 2015-10-08 19:45:22.0 Cardiome Pharma Corp CRME 14.96% view
B 2015-07-10 17:50:12.0 Cardiome Pharma Corp CRME 15.13% view
B 2015-03-06 13:08:54.0 Cardiome Pharma Corp WMGI 5.4% view
B 2015-02-09 19:57:08.0 Nuance Communications NUAN 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 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 TITAN INTERNATIONAL INC TWI 0.0% view
S 2014-02-07 09:18:10.0 PALOMAR MEDICAL TECHNOLOGIES LLC PMTI 0.0% view
S 2014-02-07 09:14:32.0 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 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 XPO 7.77% view
S 2013-02-08 10:10:39.0 FXCM Inc FXCM 4.35% view
S 2013-02-08 09:54:38.0 ATMI INC ATMI 2.37% view
S 2013-02-08 09:31:47.0 METABOLIX MBLX 1.0% view
S 2012-03-27 11:08:29.0 TITAN INTERNATIONAL INC TWI 5.14% view
S 2012-03-27 11:03:02.0 STEWART ENTERPRISES INC STEI 7.63% view
B -0.52% 2012-03-27 10:40:53.0 METABOLIX MBLX 7.91% view
S 2012-03-27 10:25:52.0 ATMI INC 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 SANTARUS INC 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 ATMI INC 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 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
S 2011-02-11 09:47:37.0 ORTHOFIX INTERNATIONAL N V OFIX 0.0% view
S 2011-02-11 09:42:41.0 SUN HEALTHCARE GROUP INC SUNH 4.39% view
B 2010-12-08 09:09:40.0 SKILLED HEALTHCARE GROUP INC n/a 14.18% view
B -49.62% 2010-02-11 07:34:23.0 WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORP 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 OSI PHARMACEUTICALS INC OSIP 4.91% view
S 2010-02-11 07:24:07.0 NAVIGANT CONSULTING INC MDCO 2.11% view
S 2010-02-11 07:17:49.0 GENTIVA HEALTH SERVICES INC GTIV n/a view
S 2010-02-11 07:15:47.0 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 SKILLED HEALTHCARE GROUP INC n/a 12.6% view
S 2009-09-09 07:42:56.0 ADOLOR CORP adlr 10.5% view
B -40.95% 2009-04-09 07:56:38.0 SANTARUS INC SNTS 13.86% view
S 2009-02-04 09:44:58.0 ATMI INC ATMI 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 RBC Bearings INC SRX 0.0% 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 OSIP 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 15.54% view
S 2009-01-09 09:02:51.0 ADOLOR CORP adlr 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 ACI WORLDWIDE ACIW 6.68% view
B 2008-01-10 09:18:47.0 MGI PHARMA INC MOGN 0.0% view
S 2008-01-10 09:17:12.0 NAVIGANT CONSULTING INC NCI 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 -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
S 2008-01-10 09:00:17.0 STEWART ENTERPRISES INC STEI 4.7% view
B 2008-01-10 08:58:47.0 CHANGS P F CHINA BISTRO INC n/a 0.0% view
B 43.11% 2008-01-10 08:55:54.0 RBC Bearings INC ROLL 7.58% 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 2006-06-02 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 GEHL CO GEHL 7.21% view
B 23.25% 2006-02-13 00:00:00.0 James River Coal CO JRCC 5.66% 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 IMMUCOR INC BLUD 5.48% view
B 45.52% 2006-02-13 00:00:00.0 PALOMAR MEDICAL TECHNOLOGIES INC PMTI 5.31% view
B 17.63% 2006-02-13 00:00:00.0 OSI PHARMACEUTICALS INC OSIP 7.86% view
S 2006-02-10 00:00:00.0 EXAR CORP EXAR 0.0% 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 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 CONCUR TECHNOLOGIES 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 0.0% view
S 2006-02-10 00:00:00.0 RADIO ONE INC ROIA 0.0% view
B 33.28% 2005-04-04 00:00:00.0 EXAR CORP EXAR 6.77% view
S 2005-02-14 00:00:00.0 FLEETWOOD ENTERPRISES INC AH 0.0% view
B -55.71% 2005-02-14 00:00:00.0 ENTRAVISION COMMUNICATIONS CORP WHQ 0.0% view
B 37.25% 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 0.199% view
S 2005-02-14 00:00:00.0 WABASH NATIONAL CORP SRX 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 SEMTECH CORP SMTC 6.86% view
B 2005-02-14 00:00:00.0 SCANSOFT INC SSFT 6.56% view
B 9.27% 2005-02-14 00:00:00.0 ATMI INC ATMI 9.67% view
S 2005-02-14 00:00:00.0 SOUTHWEST BANCORP OF TEXAS INC SWBT 7.39% view
B 15.30% 2005-02-14 00:00:00.0 INFORMATION HOLDINGS 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 WRIGHT MEDICAL GROUP INC WMGI 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 TSAI 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 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 WILSON GREATBATCH TECHNOLOGIES INC GB 3.0% view
B 2.52% 2004-08-12 00:00:00.0 NAVIGANT CONSULTING INC NCI 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 ENTRAVISION COMMUNICATIONS CORP EVC 7.17% 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 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 6.83% view
B 2004-07-27 00:00:00.0 FORRESTER RESEARCH 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 8.80% 2004-07-27 00:00:00.0 LAUREATE EDUCATION slvn 6.0% view
B -51.96% 2004-07-27 00:00:00.0 EAST WEST BANCORP INC EWBC 4.8% view
B 56.97% 2004-07-27 00:00:00.0 THERMA WAVE INC GTRC 8.38% view
B 21.75% 2004-07-27 00:00:00.0 CROSS COUNTRY HEALTHCARE INC CCRN 0.0% view
B 2004-07-26 00:00:00.0 CROSS COUNTRY HEALTHCARE INC CCRN n/a view
B 44.44% 2004-07-21 00:00:00.0 ATLANTIC COAST AIRLINES HOLDINGS INC ARDM 0.0% view
B 93.24% 2004-07-21 00:00:00.0 ADVANCED NEUROMODULATION SYSTEMS INC CVTX 0.0% view
B 11.82% 2004-06-14 00:00:00.0 LIONBRIDGE TECHNOLOGIES INC LIOX 10.39% 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 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.