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WESTFIELD CAPITAL MANAGEMENT CO LP
- As of  09/22/24, 07:49:29 PM:   185 Insider Transactions.

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Buy/Sell* 1 Yr Return** Filed Date Subject Symbol Pct Owned Details
S 2020-01-07 08:38:17.0 MEDICINES CO 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 Huron Consulting Group Inc 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 ARIAD PHARMACEUTICALS 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 10:48:15.0 AMAG PHARMACEUTICALS INC AMAG 0.0% view
B 2016-09-09 16:49:27.0 Wright Medical Group N WMGI 2.19% view
B 2016-02-10 17:00:44.0 PTC THERAPEUTICS PTCT 5.46% view
B 2016-02-10 16:59:16.0 MERRIMACK PHARMACEUTICALS INC ARIA 5.01% view
B 2016-02-09 20:04:33.0 AMAG PHARMACEUTICALS INC CRME 20.09% 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 2015-04-08 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 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 STEWART ENTERPRISES 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 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 XPO Logistics XPO 7.77% view
S 2013-02-08 10:10:39.0 FXCM Inc FXCM 4.63% view
B 36.82% 2013-02-08 10:04:51.0 TESORO CORP ARTC 8.81% view
S 2013-02-08 09:51:57.0 ATMI INC TWI 3.97% view
B 93.38% 2013-02-08 09:31:06.0 METABOLIX HURN 5.72% view
B 104.26% 2012-03-27 11:08:29.0 TITAN INTERNATIONAL INC TSO 5.65% view
S 2012-03-27 10:54:49.0 STEWART ENTERPRISES INC OFIX 3.43% view
B -0.52% 2012-03-27 10:40:53.0 METABOLIX 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 10:44:17.0 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 ATMI INC TWI 5.16% view
B 27.48% 2012-02-13 10:16:42.0 TESORO CORP FXCM 5.38% view
S 2012-02-13 10:06:01.0 ARTHROCARE CORP 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 METABOLIX n/a 4.5% view
S 2011-03-09 12:47:58.0 SANTARUS INC SNTS 0.0% view
S 2011-02-11 09:59:55.0 ADOLOR CORP EXH 4.3% view
S 2011-02-11 09:55:13.0 HIBBETT SPORTS INC HIBB 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 STEWART ENTERPRISES INC STEI 6.76% view
S 2011-02-11 09:40:45.0 SANTARUS 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 SUN HEALTHCARE GROUP INC SUNH 5.19% view
S 2010-02-11 07:30:18.0 STEWART ENTERPRISES INC SKIL 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 EXH 0.0% view
S 2010-02-11 07:11:46.0 CORINTHIAN COLLEGES INC COCO 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 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 SRA INTERNATIONAL INC SRX 0.0% view
B -73.80% 2009-02-04 09:37:30.0 CARDIONET 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 Wengen Alberta NCI 0.0% view
B 17.72% 2008-01-10 09:15:17.0 CORINTHIAN COLLEGES INC COCO 4.97% view
B 2008-01-10 09:13:15.0 VALASSIS COMMUNICATIONS INC VCI 0.0% view
S 2008-01-10 09:11:26.0 APOGEE ENTERPRISES INC APOG 5.87% view
B -20.02% 2008-01-10 09:09:25.0 OSI PHARMACEUTICALS INC OSIP 0.0% view
S 2008-01-10 09:06:25.0 GEHL CO GEHL 8.56% view
B -66.80% 2008-01-10 09:04:45.0 INTERLINE BRANDS IBI 5.49% view
S 2008-01-10 09:03:25.0 MANOR CARE INC HCR 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 ATMI 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 Nuance Communications SWBT 0.0% view
B -23.04% 2006-02-13 00:00:00.0 GEHL CO 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 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 VSEA 2.59% 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 ACTUANT CORP ATU 7.76% view
S 2006-02-10 00:00:00.0 NAVIGANT CONSULTING INC NCI 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 ADVANCED MAGNETICS 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 COST PLUS INC CPWM 0.0% 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 WNC 7.34% 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 ENTRAVISION COMMUNICATIONS CORP EVC 0.0% view
B 2005-02-14 00:00:00.0 BIOSOURCE INTERNATIONAL INC BIOI 5.82% view
B 70.30% 2005-02-14 00:00:00.0 WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORP WAB 5.77% view
B -25.32% 2005-02-14 00:00:00.0 WABASH NATIONAL CORP WNC 6.25% view
S 2005-02-14 00:00:00.0 SRA INTERNATIONAL INC NDC 0.0% view
B -9.41% 2005-02-14 00:00:00.0 LIONBRIDGE TECHNOLOGIES INC XPRT 8.1% view
S 2005-02-14 00:00:00.0 WILSON GREATBATCH TECHNOLOGIES INC QUIN 11.26% view
S 2005-02-14 00:00:00.0 POLYMEDICA CORP NCI 7.03% view
B -19.39% 2005-02-14 00:00:00.0 SEMTECH CORP KEA 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 ATMI INC ATMI 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 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
B 30.65% 2005-02-14 00:00:00.0 TRANSACTION SYSTEMS ARCHITECTS INC TSAI 5.91% view
S 2005-02-14 00:00:00.0 GUITAR CENTER INC GTRC 0.0% view
S 2005-02-14 00:00:00.0 RADIO ONE INC LIOX 0.0% view
B 65.28% 2004-10-08 00:00:00.0 VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES INC VSEA 6.18% 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 AIQ 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 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 CROSS COUNTRY HEALTHCARE INC CCRN 7.17% view
B 41.71% 2004-07-27 00:00:00.0 W WHQ 8.69% view
B 85.70% 2004-07-27 00:00:00.0 W WHQ 10.06% 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 QUINTON CARDIOLOGY SYSTEMS INC SMTC 5.56% view
B 45.01% 2004-07-27 00:00:00.0 KEANE INC KEA 7.18% view
B 13.26% 2004-07-27 00:00:00.0 PHILADELPHIA CONSOLIDATED HOLDING CORP PHLY 6.83% view
B 25.49% 2004-07-27 00:00:00.0 SOUTHWEST BANCORP OF TEXAS INC SWBT 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 WRIGHT MEDICAL GROUP 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 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 CV THERAPEUTICS INC CVTX 0.0% view
B -39.54% 2004-07-21 00:00:00.0 CV THERAPEUTICS 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.