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WESTFIELD CAPITAL MANAGEMENT CO LLC
- As of  05/27/24, 10:31:06 PM:   182 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 SITIME Corp SITM 5.09% view
S 2020-01-07 08:38:17.0 MEDICINES CO MDCO 1.71% view
B 2020-01-07 08:36:53.0 Correvio Pharma Corp CRME 100.0% view
S 2019-09-04 13:59:51.0 Correvio Pharma Corp CRME 9.69% view
S 2019-04-05 08:25:07.0 MEDICINES CO PTCT 0.0% view
B 2016-09-09 16:49:27.0 RUSH ENTERPRISES INC RUSHB 5.38% view
B 2016-02-10 16:59:16.0 MERRIMACK PHARMACEUTICALS INC ARIA 5.01% view
S 2016-02-09 20:04:33.0 Cardiome Pharma Corp 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 15.13% view
B 2015-04-08 16:19:04.0 Cardiome Pharma Corp CRME 10.33% 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 STEWART ENTERPRISES INC PMTI 0.0% view
S 2014-02-07 09:16:05.0 XPO Logistics HURN 0.0% view
S 2014-02-07 09:12:44.0 FXCM Inc FXCM 0.0% view
S 2014-02-07 09:07:31.0 ELAN CORP PLC ATMI 0.0% view
B 2014-02-07 09:00:13.0 ALEXION PHARMACEUTICALS INC ARTC 11.16% view
S 2013-05-06 09:00:12.0 ARTHROCARE CORP n/a 1.0% view
B -20.04% 2013-02-08 10:20:11.0 XPO Logistics XPO 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 2.37% view
S 2013-02-08 09:31:47.0 METABOLIX MBLX 1.0% view
S 2013-02-08 09:30:48.0 TITAN INTERNATIONAL INC TWI 5.14% 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 METABOLIX MBLX 7.91% view
B -2.53% 2012-03-27 10:31:12.0 ATMI 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 3.5% view
S 2012-02-13 10:44:17.0 HIBBETT SPORTS 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 ATMI 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 HIBBETT SPORTS INC MDCO 0.0% view
B 39.35% 2011-02-11 09:49:32.0 NAVIGANT CONSULTING INC OFIX 5.02% view
B -14.01% 2011-02-11 09:45:15.0 RBC Bearings INC STEI 6.76% view
S 2011-02-11 09:40:45.0 SUN HEALTHCARE GROUP INC SNTS 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 WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORP 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 OSI PHARMACEUTICALS INC OSIP 4.91% view
S 2010-02-11 07:24:07.0 MEDICINES CO MDCO 2.11% view
S 2010-02-11 07:20:08.0 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 07:11:46.0 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 ACTUANT CORP SNTS 12.95% view
S 2009-10-09 07:04:59.0 ADOLOR CORP adlr 8.97% view
S 2009-08-04 13:01:50.0 ADOLOR CORP adlr 11.61% view
B -40.95% 2009-04-09 07:56:38.0 SANTARUS INC mdco 5.32% view
S 2009-02-04 09:44:58.0 ATMI INC NUAN 4.49% view
S 2009-02-04 09:42:50.0 GEHL CO SKIL 6.5% view
S 2009-02-04 09:39:27.0 RBC Bearings INC SRX 0.0% view
B -73.80% 2009-02-04 09:37:30.0 ALEXION PHARMACEUTICALS INC BEAT 5.51% view
S 2009-02-04 09:29:26.0 POWER INTEGRATIONS INC OSIP 6.4% view
S 2009-02-04 09:25:26.0 GENTIVA HEALTH SERVICES INC GTIV 2.55% view
B -4.63% 2009-02-04 09:19:23.0 NAVIGANT CONSULTING INC NCI 5.0% view
B 5.61% 2009-02-04 09:16:39.0 ACTUANT CORP ATU 6.24% view
B -32.44% 2009-02-04 09:13:54.0 CORINTHIAN COLLEGES INC 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
S 2009-01-09 09:02:51.0 Vanda Pharmaceuticals Inc VNDA 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
S 2008-01-10 09:15:31.0 GREENBRIER COMPANIES INC GBX 0.0% view
B -21.34% 2008-01-10 09:15:17.0 MEDCO HEALTH SOLUTIONS INC MHS 0.0% view
B 2008-01-10 09:13:15.0 ELAN CORP PLC n/a 5.1% view
S 2008-01-10 09:11:26.0 APOGEE ENTERPRISES INC ATU 5.87% view
B -20.02% 2008-01-10 09:09:25.0 Fidelity National Information Services FIS 0.0% view
S 2008-01-10 09:06:25.0 GEHL CO VNDA 8.56% view
B -66.80% 2008-01-10 09:04:45.0 INTERLINE BRANDS hxl 0.24% view
S 2008-01-10 09:03:25.0 MANOR CARE INC GTIV 5.05% view
S 2008-01-10 09:00:17.0 PALOMAR MEDICAL TECHNOLOGIES INC STEI 4.7% view
B 2008-01-10 08:58:47.0 Nuance Communications n/a 0.0% view
S 2008-01-10 08:55:54.0 SKILLSOFT PUBLIC LIMITED CO ROLL 7.58% view
B -53.07% 2008-01-10 08:52:01.0 SCHAWK INC ATMI 7.88% view
B -57.45% 2008-01-07 06:08:42.0 ADOLOR CORP adlr 18.86% view
B -58.51% 2007-12-06 08:59:57.0 ADOLOR CORP adlr 14.69% view
B -92.64% 2007-09-10 08:46:40.0 Vanda Pharmaceuticals Inc VNDA 11.86% view
B 24.35% 2007-08-09 08:51:05.0 ADOLOR CORP adlr 13.02% view
S 2007-04-12 11:36:56.0 SANTARUS INC SNTS 14.36% view
B 76.37% 2006-12-07 11:30:40.0 RBC Bearings INC ROLL 10.68% 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 -23.04% 2006-02-13 00:00:00.0 GREENBRIER COMPANIES INC GBX 5.38% view
B 23.25% 2006-02-13 00:00:00.0 SUPERIOR ENERGY SERVICES INC SPN 1.64% view
B 38.53% 2006-02-13 00:00:00.0 STEWART ENTERPRISES 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 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 LECG CORP 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 HCR 4.4% view
S 2006-02-10 00:00:00.0 RSA SECURITY 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
S 2006-02-10 00:00:00.0 RADIO ONE INC ROIA 0.0% view
B -13.74% 2005-04-04 00:00:00.0 EXAR CORP EXAR 6.77% 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 POLYMEDICA CORP 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
S 2005-02-14 00:00:00.0 CONCUR TECHNOLOGIES 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 7.05% view
S 2005-02-14 00:00:00.0 DELTA & PINE LAND CO CPWM 11.52% view
S 2005-02-14 00:00:00.0 ADVANCED DIGITAL INFORMATION CORP APOL 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 TRANSACTION SYSTEMS ARCHITECTS INC WCN 6.25% view
B -29.05% 2005-02-14 00:00:00.0 GUITAR CENTER INC ROIA 5.0% view
S 2005-01-10 00:00:00.0 LIONBRIDGE TECHNOLOGIES INC 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 ARMOR HOLDINGS INC AIQ 3.0% 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 SRX 5.3% view
B 54.27% 2004-07-27 00:00:00.0 SEACOR HOLDINGS INC CKH 6.68% 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 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 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 STERICYCLE 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 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 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 10.9% view
B 72.30% 2004-06-10 00:00:00.0 ARMOR HOLDINGS 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.