Home Latest Filings Latest Buys Latest Sells Institutions Derivatives Hot Buys Data Screener Email Alerts Insider Charts
WESTFIELD CAPITAL MANAGEMENT CO LP
- As of  04/30/24, 04:09:54 PM:   198 Insider Transactions.

Email this page to a friend.
Buy/Sell* 1 Yr Return** Filed Date Subject Symbol Pct Owned Details
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 Correvio Pharma Corp CRME 12.21% view
B 2019-02-07 07:03:51.0 MEDICINES CO MDCO 6.23% view
B 2018-07-03 14:07:18.0 Correvio Pharma Corp CRME 13.27% view
S 2018-05-02 07:51:52.0 Cardiome Pharma Corp CRME 11.9% view
S 2018-03-02 16:29:41.0 Cardiome Pharma Corp CRME 12.62% view
S 2017-12-07 18:32:24.0 Cardiome Pharma Corp CRME 13.74% view
S 2017-09-07 16:19:59.0 Cardiome Pharma Corp CRME 14.59% view
B 2017-08-08 11:23:17.0 Cardiome Pharma Corp CRME 16.75% view
S 2017-08-03 15:55:56.0 HEXCEL CORP HXL 0.0% view
B 2017-04-07 18:31:30.0 Huron Consulting Group Inc HURN 0.0% view
S 2017-04-07 15:22:45.0 MERRIMACK PHARMACEUTICALS INC MACK 0.0% view
S 2017-04-07 15:21:54.0 ARIAD PHARMACEUTICALS INC ARIA 0.0% view
B 2017-02-10 10:52:26.0 MERRIMACK PHARMACEUTICALS INC MACK 7.0% view
S 2017-02-10 10:51:58.0 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 SUPERIOR ENERGY SERVICES INC SPN 0.0% view
S 2017-02-10 10:47:41.0 AMAG PHARMACEUTICALS INC AMAG 0.0% view
B 2016-02-10 17:01:29.0 Wright Medical Group N WMGI 2.19% view
B 2016-02-10 16:59:58.0 PTC THERAPEUTICS PTCT 5.46% view
S 2016-02-09 20:05:19.0 ARIAD PHARMACEUTICALS INC ARIA 5.01% view
S 2016-02-09 20:03:32.0 Cardiome Pharma Corp CRME 20.09% view
S 2016-02-05 17:06:13.0 DYNAVAX TECHNOLOGIES CORP DVAX 0.0% view
B 2015-11-09 12:05:00.0 Cardiome Pharma Corp CRME 18.67% view
B 2015-08-07 16:12:26.0 Cardiome Pharma Corp CRME 14.96% view
B 2015-06-09 17:17:40.0 Cardiome Pharma Corp CRME 15.13% view
B 2015-03-06 13:08:54.0 Cardiome Pharma Corp CRME 10.33% view
B 2015-02-09 19:57:08.0 Nuance Communications NUAN 6.24% view
B 2015-02-09 19:51:01.0 DYNAVAX TECHNOLOGIES CORP DVAX 9.4% view
B 2015-02-09 19:47:43.0 Cardiome Pharma Corp 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 Aegerion Pharmaceuticals ARTC 9.4% view
S 2014-02-07 10:20:45.0 ORTHOFIX INTERNATIONAL N V OFIX 0.0% view
S 2014-02-07 09:18:29.0 TITAN INTERNATIONAL INC TWI 0.0% view
S 2014-02-07 09:16:32.0 PALOMAR MEDICAL TECHNOLOGIES LLC PMTI 0.0% view
S 2014-02-07 09:14:32.0 Huron Consulting Group Inc HURN 0.0% 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 ATMI 0.0% view
B 42.85% 2013-11-07 16:10:20.0 ARTHROCARE CORP ARTC 11.16% view
B 50.47% 2013-02-08 10:40:26.0 SKILLED HEALTHCARE GROUP INC n/a 7.77% view
S 2013-02-08 10:17:22.0 TILLY TLYS 4.63% view
B 36.82% 2013-02-08 10:04:51.0 TESORO CORP TSO 8.81% view
S 2013-02-08 09:51:57.0 ATMI INC ATMI 3.97% view
B 93.38% 2013-02-08 09:31:06.0 METABOLIX MBLX 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 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 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 HIBBETT SPORTS INC HIBB 0.0% view
S 2012-02-13 10:36:24.0 DIONEX CORP 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 MBLX 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 ADLR 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 NCI 5.02% view
B -23.80% 2011-02-11 09:45:15.0 RBC Bearings INC ROLL 0.0% view
S 2011-02-11 09:40:45.0 SUN HEALTHCARE GROUP INC SUNH 4.39% view
S 2010-10-08 09:25:07.0 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 5.66% view
S 2010-02-11 07:27:15.0 RBC Bearings INC ROLL 0.47% view
S 2010-02-11 07:24:07.0 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 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 adlr 13.86% view
S 2009-02-04 09:45:58.0 MEDICINES CO mdco 5.32% view
S 2009-02-04 09:43:58.0 Nuance Communications NUAN 4.49% view
S 2009-02-04 09:40:57.0 SKILLSOFT PUBLIC LIMITED CO SKIL 6.5% view
S 2009-02-04 09:37:57.0 SRA INTERNATIONAL INC SRX 0.0% view
S 2009-02-04 09:34:56.0 CARDIONET INC BEAT 5.51% view
S 2009-02-04 09:27:55.0 OSI PHARMACEUTICALS INC OSIP 6.4% view
B 2009-02-04 09:21:25.0 GENTIVA HEALTH SERVICES INC GTIV 2.55% view
S 2009-02-04 09:18:39.0 NAVIGANT CONSULTING INC NCI 5.0% 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 COCO 0.0% view
S 2009-02-04 09:08:53.0 SCHAWK INC SGK 0.0% view
S 2009-01-09 09:04:11.0 SANTARUS INC SNTS 15.54% 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 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 HEXCEL CORP 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 SGK 7.88% view
B -57.45% 2008-01-07 06:08:42.0 SANTARUS INC SNTS 18.86% view
B -58.51% 2007-12-06 08:59:57.0 Vanda Pharmaceuticals Inc VNDA 14.69% view
B -92.64% 2007-09-10 08:46:40.0 ADOLOR CORP adlr 11.86% view
B 24.35% 2007-08-09 08:51:05.0 Vanda Pharmaceuticals Inc VNDA 10.01% view
S 2007-04-12 11:36:56.0 PALOMAR MEDICAL TECHNOLOGIES INC PMTI 10.08% view
B 76.37% 2006-12-07 11:30:40.0 ADOLOR CORP adlr 11.35% view
S 2006-02-14 00:00:00.0 BIOSOURCE INTERNATIONAL INC BIOI 0.0% view
S 2006-02-14 00:00:00.0 Nuance Communications SSFT 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 JRCC 5.66% view
B 24.41% 2006-02-13 00:00:00.0 GENTIVA HEALTH SERVICES INC GTIV 9.67% view
B -45.64% 2006-02-13 00:00:00.0 ASV 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 PMTI 2.84% view
B 17.63% 2006-02-13 00:00:00.0 OSI PHARMACEUTICALS INC OSIP 6.05% view
S 2006-02-10 00:00:00.0 EXAR CORP EXAR 2.59% 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
B 8.98% 2006-02-10 00:00:00.0 LECG CORP XPRT 1.39% view
S 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 0.0% view
S 2006-02-10 00:00:00.0 KEANE INC KEA 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 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 WNC 7.34% view
B 33.28% 2005-02-14 00:00:00.0 EXAR CORP EXAR 7.72% view
S 2005-02-14 00:00:00.0 FLEETWOOD ENTERPRISES INC FLE 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 SANTARUS INC SNTS 14.36% view
B 37.25% 2005-02-14 00:00:00.0 ACTUATE CORP ACTU 9.02% view
B -44.55% 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
B -9.41% 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 11.26% view
S 2005-02-14 00:00:00.0 POLYMEDICA CORP PLMD 7.03% view
B -19.39% 2005-02-14 00:00:00.0 SEMTECH CORP SMTC 6.86% view
S 2005-02-14 00:00:00.0 SCANSOFT INC SSFT 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 INFORMATION HOLDINGS 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 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 LIONBRIDGE TECHNOLOGIES INC LIOX 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 VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES 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 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 W WHQ 6.24% view
B -10.46% 2004-07-27 00:00:00.0 SUPERIOR ENERGY SERVICES INC SPN 7.0% view
B 50.91% 2004-07-27 00:00:00.0 SEACOR HOLDINGS INC CKH 5.3% view
B 54.27% 2004-07-27 00:00:00.0 PSS WORLD MEDICAL INC PSSI 6.68% view
B 2004-07-27 00:00:00.0 NMS COMMUNICATIONS CORP NMSS 14.16% view
B -1.92% 2004-07-27 00:00:00.0 QUINTON CARDIOLOGY SYSTEMS INC QUIN 5.56% view
B 45.01% 2004-07-27 00:00:00.0 KEANE INC KEA 6.58% view
B 13.26% 2004-07-27 00:00:00.0 PHILADELPHIA CONSOLIDATED HOLDING CORP PHLY 0.0% 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 P F CHANGS CHINA BISTRO INC PFCB 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 RSA SECURITY INC RSAS 9.31% view
B -11.76% 2004-07-27 00:00:00.0 POWER INTEGRATIONS INC POWI 6.04% view
B 2004-07-27 00:00:00.0 WRIGHT MEDICAL GROUP INC WMGI 6.89% view
B 8.80% 2004-07-27 00:00:00.0 LAUREATE EDUCATION slvn 7.23% view
B -51.96% 2004-07-27 00:00:00.0 EAST WEST BANCORP INC EWBC 7.86% view
B 56.97% 2004-07-27 00:00:00.0 THERMA WAVE INC twav 0.0% view
B 21.75% 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 2004-07-21 00:00:00.0 ATLANTIC COAST AIRLINES HOLDINGS INC acai 5.06% view
B 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 5.41% view
B 11.82% 2004-06-14 00:00:00.0 LIONBRIDGE TECHNOLOGIES INC LIOX 10.24% 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 CNQR 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 ARMOR HOLDINGS INC AH 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.