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WESTFIELD CAPITAL MANAGEMENT CO LP
- As of  04/28/24, 10:40:27 PM:   190 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
B 2020-01-07 08:36:53.0 Correvio Pharma Corp CRME 100.0% view
S 2019-04-05 08:25:07.0 Correvio Pharma Corp CRME 12.21% view
B 2019-02-07 07:03:51.0 Correvio Pharma Corp CRME 13.27% view
S 2018-05-02 07:51:52.0 Cardiome Pharma Corp CRME 12.62% view
S 2017-12-07 18:32:24.0 Cardiome Pharma Corp CRME 14.59% view
S 2017-08-08 11:23:17.0 HEXCEL CORP HXL 0.0% view
S 2017-04-07 18:31:30.0 MERRIMACK PHARMACEUTICALS 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
S 2016-02-09 20:05:19.0 AMAG PHARMACEUTICALS INC AMAG 5.26% view
S 2016-02-09 20:03:32.0 MWI Veterinary Supply MWIV 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 Cardiome Pharma Corp WMGI 5.4% view
B 2015-02-09 19:57:08.0 Nuance Communications MWIV 6.24% view
B 2015-02-09 19:51:01.0 DYNAVAX TECHNOLOGIES CORP ARTC 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 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 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 TWI 5.65% view
S 2012-03-27 10:54:49.0 STEWART ENTERPRISES INC STEI 3.43% view
B -0.52% 2012-03-27 10:40:53.0 METABOLIX MBLX 6.06% view
S 2012-03-27 10:25:52.0 ATMI INC ATMI 6.88% view
B 29.47% 2012-02-13 11:03:07.0 SUN HEALTHCARE GROUP INC SUNH 7.32% view
S 2012-02-13 10:55:49.0 SANTARUS INC SNTS 8.14% view
S 2012-02-13 10:47:58.0 ORTHOFIX INTERNATIONAL N V OFIX 1.0% view
S 2012-02-13 10:40:18.0 HIBBETT SPORTS INC HIBB 0.0% view
B -10.04% 2012-02-13 10:31:55.0 DIONEX CORP DNEX 5.49% view
B 93.52% 2012-02-13 10:22:32.0 TITAN INTERNATIONAL INC TSO 5.48% view
B 21.26% 2012-02-13 10:12:23.0 FXCM Inc FXCM 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 SKILLED HEALTHCARE GROUP INC SNTS 8.27% view
S 2011-02-11 12:17:07.0 ACI WORLDWIDE ADLR 0.0% view
S 2011-02-11 09:57:36.0 EXTERRAN HOLDINGS INC EXH 4.3% view
S 2011-02-11 09:52:32.0 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 STEWART ENTERPRISES INC STEI 6.76% view
S 2010-12-08 09:09:40.0 SANTARUS INC SNTS 14.18% view
S 2010-08-09 16:02:51.0 SKILLED HEALTHCARE GROUP INC n/a 0.0% view
B 54.13% 2010-02-11 07:32:19.0 SUN HEALTHCARE GROUP INC SUNH 5.66% view
S 2010-02-11 07:29:10.0 SKILLSOFT PUBLIC LIMITED CO SKIL 0.47% view
S 2010-02-11 07:26:03.0 OSI PHARMACEUTICALS INC NCI 4.85% view
B 44.53% 2010-02-11 07:22:30.0 MEDICINES CO HIBB 5.57% view
B 14.31% 2010-02-11 07:17:49.0 GENTIVA HEALTH SERVICES INC EXH 6.26% view
S 2010-02-11 07:13:17.0 EAST WEST BANCORP INC COCO 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 ADLR 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 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 SKIL 6.63% view
S 2009-02-04 09:37:57.0 SRA INTERNATIONAL INC SRX 4.84% 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 GTIV 4.1% 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 LAXN 3.48% view
S 2008-01-10 09:19:25.0 ACI WORLDWIDE ACIW 0.0% view
B 2008-01-10 09:17:48.0 MGI PHARMA INC MOGN 0.0% view
S 2008-01-10 09:16:27.0 NAVIGANT CONSULTING INC NCI 0.0% view
B -21.34% 2008-01-10 09:15:17.0 CORINTHIAN COLLEGES INC COCO 0.0% view
B 2008-01-10 09:13:15.0 VALASSIS COMMUNICATIONS INC VCI 5.1% 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 0.07% 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 PMTI 4.7% view
B 2008-01-10 08:58:47.0 Nuance Communications NUAN 0.0% view
S 2008-01-10 08:55:54.0 SKILLSOFT PUBLIC LIMITED CO SKIL 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 SANTARUS INC adlr 18.86% view
B -58.51% 2007-12-06 08:59:57.0 Vanda Pharmaceuticals Inc adlr 14.69% view
B -92.64% 2007-09-10 08:46:40.0 ADOLOR CORP VNDA 11.86% view
B 24.35% 2007-08-09 08:51:05.0 Vanda Pharmaceuticals Inc VNDA 13.02% view
S 2007-04-12 11:36:56.0 PALOMAR MEDICAL TECHNOLOGIES INC SNTS 14.36% view
B 76.37% 2006-12-07 11:30:40.0 ADOLOR CORP ROLL 10.68% 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 GBX 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 LAUREATE EDUCATION OSIP 7.86% view
S 2006-02-13 00:00:00.0 ALEXION PHARMACEUTICALS INC EXAR 0.0% view
S 2006-02-10 00:00:00.0 VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES INC FLE 0.0% view
S 2006-02-10 00:00:00.0 WESTINGHOUSE AIR BRAKE TECHNOLOGIES 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 SKILLSOFT PUBLIC LIMITED CO ATU 7.01% view
S 2006-02-10 00:00:00.0 POLYMEDICA CORP PLMD 5.84% view
S 2006-02-10 00:00:00.0 SEMTECH CORP KEA 0.0% view
S 2006-02-10 00:00:00.0 ATMI INC AVM 5.62% view
S 2006-02-10 00:00:00.0 CONCUR TECHNOLOGIES INC HCR 4.4% view
S 2006-02-10 00:00:00.0 ADVANCED MEDICAL OPTICS INC RSAS 0.0% view
S 2006-02-10 00:00:00.0 POWER INTEGRATIONS INC CPWM 0.0% 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 LAUREATE EDUCATION ROIA 0.0% view
B -13.74% 2005-04-04 00:00:00.0 WABASH NATIONAL CORP EXAR 6.77% view
B 15.48% 2005-02-14 00:00:00.0 VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES INC FLE 6.58% view
S 2005-02-14 00:00:00.0 ARMOR HOLDINGS INC EVC 0.0% view
B -8.53% 2005-02-14 00:00:00.0 W SNTS 14.36% view
B 37.25% 2005-02-14 00:00:00.0 BIOSOURCE INTERNATIONAL INC ACTU 9.02% view
S 2005-02-14 00:00:00.0 WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORP SPN 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 NAVIGANT CONSULTING INC 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 ADVANCED MAGNETICS 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 POWI 7.05% 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 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 LIOX 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 NCI 5.33% view
B 27.15% 2004-08-12 00:00:00.0 LEAPFROG ENTERPRISES INC LF 9.14% view
B -50.60% 2004-08-12 00:00:00.0 WASTE CONNECTIONS INC WCN 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 CKH 5.3% view
B 54.27% 2004-07-27 00:00:00.0 PSS WORLD MEDICAL INC PSSI 6.68% view
B -40.73% 2004-07-27 00:00:00.0 NMS COMMUNICATIONS CORP NMSS 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 KEANE INC 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 SOUTHWEST BANCORP OF TEXAS 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 SELECT MEDICAL CORP 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 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 THERMA WAVE 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 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 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.