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13F-HR filed by WESTFIELD CAPITAL MANAGEMENT CO LP

WESTFIELD CAPITAL MANAGEMENT CO LP filed this 13F-HR for the quarter ended 2017-06-30, filed 2017-08-11, with 249 holding rows worth $11,732,060,000.

Accession
0001085146-17-001754
Filed
2017-08-11
Accepted by EDGAR
acceptance time not in the bulk data set
Ingested
Source
SEC quarterly data set

Original filing

13F report for Q2 2017

A holdings report, 249 entries on the cover page, a total value of $11,732,060,000 stated on the cover page (in dollars after the unit check, H1), rows summing to $11,732,060,000 with VALUE read as thousands by filing date, 13F file number 028-10220. The quarter's positions are built on this report. The resolved quarter.

The information table after summing rows of one CUSIP and put or call (H4), with the CUSIP and issuer name as filed. Values in dollars after the unit check (method).

Issuer as filedCUSIPClassAmountValueValue read asType
Apple Inc037833100COM2,158,847$310,917,000thousands by filing date
META PLATFORMS INC CL A30303M102COM1,504,566$227,159,000thousands by filing date
JAZZ PHARMACEUTICALS PLC SHS USDG50871105Stock1,323,264$205,768,000thousands by filing date
Amazon.com, Inc023135106COM207,116$200,488,000thousands by filing date
Microsoft Corp594918104COM2,829,175$195,015,000thousands by filing date
STERIS PLCG84720104SHS USD2,236,352$182,263,000thousands by filing date
CELGENE CORP151020104COM1,314,826$170,756,000thousands by filing date
Alphabet Inc. Reg. Shares C02079K107COM184,788$167,922,000thousands by filing date
Visa Inc92826C839COM1,732,648$162,488,000thousands by filing date
Alphabet Inc. Reg. Shares A02079K305COM172,486$160,357,000thousands by filing date
AMETEK INC COM031100100Stock2,598,320$157,380,000thousands by filing date
MARRIOTT INTL INC NEW CL A571903202Stock1,513,680$151,837,000thousands by filing date
CONSTELLATION BRANDS INC CL A21036P108Stock772,954$149,744,000thousands by filing date
NEWELL BRANDS INC COM651229106Stock2,737,839$146,803,000thousands by filing date
Home Depot, Inc437076102COM872,101$133,780,000thousands by filing date
UnitedHealth Group Inc91324P102COM710,226$131,690,000thousands by filing date
Dow Chemical Company260543103COM2,039,836$128,652,000thousands by filing date
Salesforce.com, Inc79466L302COM1,432,955$124,094,000thousands by filing date
Walt Disney Co254687106COM1,166,661$123,958,000thousands by filing date
Abbott Laboratories002824100COM2,529,199$122,944,000thousands by filing date
ServiceNow,Inc.81762P102COM1,047,200$111,003,000thousands by filing date
METTLER TOLEDO INTERNATIONAL COM592688105Stock188,444$110,907,000thousands by filing date
DELPHI AUTOMOTIVE PLCG27823106COMMON STOCK-FO1,258,826$110,336,000thousands by filing date
CHARTER COMMUNICATIONS INC N16119P108COM326,370$109,938,000thousands by filing date
Eli Lilly and Company532457108COM1,328,180$109,309,000thousands by filing date
THE COOPER COMPANIES216648402COM NEW430,879$103,161,000thousands by filing date
Philip Morris International Inc.718172109COM877,301$103,039,000thousands by filing date
McDonalds Corporation580135101COM668,037$102,317,000thousands by filing date
UNITED AIRLS HLDGS INC COM910047109Stock1,358,476$102,225,000thousands by filing date
INGERSOLL-RAND PLCG47791101SHS1,104,382$100,929,000thousands by filing date
TESORO CORP881609101COM1,053,329$98,592,000thousands by filing date
Charles Schwab Corp808513105COM2,279,960$97,947,000thousands by filing date
Intercontinental Exchange,Inc.45866F104COM1,475,206$97,246,000thousands by filing date
Adobe Inc00724F101COM683,707$96,704,000thousands by filing date
VAIL RESORTS INC COM91879Q109Stock476,482$96,645,000thousands by filing date
Danaher Corporation235851102COM1,118,349$94,377,000thousands by filing date
TRANSDIGM GROUP INC COM893641100Stock343,619$92,389,000thousands by filing date
SIX FLAGS ENTERTAINMENT CORP83001A102COM1,546,615$92,194,000thousands by filing date
BIOGEN INC COM09062X103Stock320,679$87,019,000thousands by filing date
SUMMIT MATERIALS INC CLASS A86614U100CL A2,989,486$86,306,000thousands by filing date
CELANESE CORP DEL COM150870103Stock907,976$86,203,000thousands by filing date
PAYPALHLDGSINC70450Y103STOK1,590,698$85,373,000thousands by filing date
ALEXANDRIA REAL ESTATE EQ INC COM015271109REIT691,934$83,357,000thousands by filing date
LENNOX INTL INC COM526107107Stock444,147$81,563,000thousands by filing date
LIONS GATE ENTMNT CORP535919500CL B NON VTG3,072,629$80,749,000thousands by filing date
COSTAR GROUP INC COM22160N109Stock303,156$79,912,000thousands by filing date
MICROSEMI CORP595137100COM1,706,865$79,881,000thousands by filing date
MEDICINES CO584688105COM2,031,359$77,212,000thousands by filing date
Progressive Corporation743315103COM1,739,335$76,687,000thousands by filing date
ICON PUB LTD CO SHSG4705A100Stock774,673$75,755,000thousands by filing date
TRANSUNION COM89400J107Stock1,721,762$74,570,000thousands by filing date
Union Pacific Corporation907818108COM684,617$74,562,000thousands by filing date
NEKTAR THERAPEUTICS640268108COM3,773,983$73,781,000thousands by filing date
BROADCOM LTDY09827109SHS308,328$71,856,000thousands by filing date
MasterCard, Inc57636Q104COM590,921$71,767,000thousands by filing date
PRICELINE GRP INC741503403COM NEW38,250$71,547,000thousands by filing date
PINNACLE FOODS INC DEL72348P104COM1,174,363$69,757,000thousands by filing date
TWENTY FIRST CENTY FOX INC90130A101CL A2,432,956$68,950,000thousands by filing date
HILL ROM HLDGS INC431475102COM855,705$68,123,000thousands by filing date
DEXCOM INC COM252131107Stock912,650$66,760,000thousands by filing date
WRIGHT MED GROUP N VN96617118ORD SHS2,425,566$66,679,000thousands by filing date
AVERY DENNISON CORP COM053611109Stock751,791$66,436,000thousands by filing date
INSTALLED BLDG PRODS INC45780R101COM1,252,398$66,314,000thousands by filing date
BERRY GLOBAL GROUP INC08579W103COM1,141,394$65,071,000thousands by filing date
CYRUSONE INC23283R100COM1,160,063$64,674,000thousands by filing date
NEUROCRINE BIOSCIENCES INC64125C109COM1,400,585$64,427,000thousands by filing date
MIDDLEBYCORP596278101STOK516,380$62,745,000thousands by filing date
RED HAT INC756577102COM641,422$61,416,000thousands by filing date
RYDER SYS INC COM783549108Stock844,807$60,809,000thousands by filing date
GALLAGHER ARTHUR J & CO COM363576109Stock1,057,858$60,562,000thousands by filing date
HUNT J B TRANS SVCS INC COM445658107Stock659,243$60,242,000thousands by filing date
Applied Materials,Inc.038222105COM1,437,420$59,380,000thousands by filing date
PACIRA BIOSCIENCES INC COM695127100Stock1,221,340$58,258,000thousands by filing date
COGNIZANT TECHNOLOGY SOLUTIONS CL A192446102Stock868,016$57,636,000thousands by filing date
FORTINET INC COM34959E109Stock1,506,653$56,409,000thousands by filing date
BREAD FINANCIAL HOLDINGS INC018581108COM219,160$56,256,000thousands by filing date
IHS MARKIT LTDG47567105SHS1,249,090$55,010,000thousands by filing date
KLX INC482539103COM1,092,420$54,621,000thousands by filing date
SBA COMMUNICATIONS CORP CL A78410G104REIT399,951$53,953,000thousands by filing date
CIENA CORP COM NEW171779309Stock2,135,095$53,420,000thousands by filing date
S&P Global,Inc.78409V104COM363,265$53,033,000thousands by filing date
MSCI INC COM55354G100Stock512,894$52,823,000thousands by filing date
RAYMOND JAMES FINL INC COM754730109Stock650,759$52,204,000thousands by filing date
JBT MAREL CORPORATION477839104COM529,963$51,936,000thousands by filing date
SCRIPPS NETWORKS INTERACT IN811065101CL A COM758,420$51,808,000thousands by filing date
ACCELERON PHARMA INC00434H108COM1,682,359$51,127,000thousands by filing date
MONSTER BEVERAGE CORP NEW COM61174X109Stock1,015,540$50,452,000thousands by filing date
NICE LTD SPONSORED ADR653656108ADR621,182$48,899,000thousands by filing date
TOTAL SYS SVCS INC891906109COM839,285$48,888,000thousands by filing date
DUNKIN BRANDS GROUP INC265504100COM879,264$48,465,000thousands by filing date
AXALTA COATING SYS LTD COMG0750C108Stock1,504,315$48,198,000thousands by filing date
MGIC INVT CORP WIS COM552848103Stock4,238,647$47,473,000thousands by filing date
NEXSTAR MEDIA GROUP INC COMMON STOCK65336K103Stock776,783$46,452,000thousands by filing date
FLOWSERVE CORP34354P105COM996,599$46,272,000thousands by filing date
CAVIUM INC14964U108COM744,560$46,260,000thousands by filing date
ENVISION HEALTHCARE CORP29414D100COM732,285$45,892,000thousands by filing date
INTEGRA LIFESCIENCES HLDGS C457985208COM NEW794,716$43,320,000thousands by filing date
Micron Technology,Inc.595112103COM1,442,916$43,085,000thousands by filing date
ELDORADO RESORTS INC28470R102COM2,147,812$42,956,000thousands by filing date
BRIGHT HORIZONS FAM SOL IN DEL COM109194100Stock548,446$42,346,000thousands by filing date
VANTIV INC92210H105CL A662,670$41,974,000thousands by filing date
OMNICELL COM COM68213N109Stock959,432$41,352,000thousands by filing date
BUILDERS FIRSTSOURCE INC COM12008R107Stock2,680,194$41,061,000thousands by filing date
QUEST DIAGNOSTICS INC COM74834L100Stock364,909$40,563,000thousands by filing date
ALEXION PHARMACEUTICALS INC015351109COM331,270$40,306,000thousands by filing date
MACQUARIE INFRASTRUCTURE HOLDI55608B105COMMON UNITS513,533$40,261,000thousands by filing date
SUN CMNTYS INC COM866674104REIT455,414$39,935,000thousands by filing date
VALERO ENERGY CORP COM91913Y100Stock579,303$39,080,000thousands by filing date
GRACE W R & CO DEL NEW COM38388F108Stock529,235$38,110,000thousands by filing date
BANK OF N T BUTTERFIELD & SOG0772R208SHS NEW1,117,360$38,102,000thousands by filing date
BMC STK HLDGS INC05591B109COM1,718,041$37,539,000thousands by filing date
SPLUNK INC848637104COM659,427$37,515,000thousands by filing date
CRANE CO224399105COM471,095$37,396,000thousands by filing date
PROTHENA CORP PLC SHSG72800108Stock684,160$37,027,000thousands by filing date
ESSENT GROUP LTD COMG3198U102Stock978,095$36,326,000thousands by filing date
INTERXION HOLDING N.VN47279109SHS785,001$35,937,000thousands by filing date
OLD DOMINION FREIGHT LINE INC COM679580100Stock373,742$35,595,000thousands by filing date
SMITH A O CORP COM831865209Stock628,404$35,398,000thousands by filing date
PROOFPOINT INC743424103COM398,680$34,617,000thousands by filing date
ACLARIS THERAPEUTICS INC COM00461U105Stock1,249,254$33,880,000thousands by filing date
EAST WEST BANCORP INC COM27579R104Stock563,695$33,021,000thousands by filing date
GARTNERINC366651107STOK262,630$32,437,000thousands by filing date
FCB Financial Holdings Inc Cla30255G103COM675,440$32,252,000thousands by filing date
PTC INC COM69370C100Stock573,351$31,603,000thousands by filing date
CYBERARK SOFTWARE LTD SHSM2682V108Stock632,560$31,596,000thousands by filing date
WESTERN ALLIANCE BANCORP COM957638109Stock625,020$30,751,000thousands by filing date
DANA INC235825205COM1,353,996$30,235,000thousands by filing date
MADISON SQUARE GRDN SPRT CORP CL A55825T103Stock152,596$30,046,000thousands by filing date
ZENDESK INC98936J101COM1,064,475$29,571,000thousands by filing date
CLOVIS ONCOLOGY INC189464100COM315,170$29,509,000thousands by filing date
ON SEMICONDUCTOR CORP COM682189105Stock2,068,434$29,041,000thousands by filing date
REALPAGE INC75606N109COM805,363$28,953,000thousands by filing date
WNS HOLDINGS LTD92932M101SPON ADR835,890$28,721,000thousands by filing date
SONIC CORP835451105COM1,056,390$27,984,000thousands by filing date
VULCAN MATLS CO COM929160109Stock220,522$27,936,000thousands by filing date
NCR VOYIX CORPORATION62886E108COM681,268$27,823,000thousands by filing date
UNIVAR INC91336L107COMMON STOCK947,339$27,662,000thousands by filing date
ELECTRONICS FOR IMAGING INC286082102COM575,545$27,269,000thousands by filing date
SOTHEBYS835898107COM507,720$27,249,000thousands by filing date
COMMVAULT SYS INC COM204166102Stock481,669$27,190,000thousands by filing date
INTEGRATED DEVICE TECHNOLOGY INC458118106COMMON STOCK1,047,910$27,026,000thousands by filing date
BOYDGAMINGCORP103304101STOK1,087,200$26,973,000thousands by filing date
RUSH ENTERPRISES INC CL A781846209Stock722,639$26,868,000thousands by filing date
TABLEAU SOFTWARE INC87336U105CL A437,721$26,819,000thousands by filing date
LIBERTY BROADBAND A530307107COMMON STOCK311,320$26,708,000thousands by filing date
CROWN CASTLE INC COM22822V101REIT265,551$26,603,000thousands by filing date
THE ULTIMATE SOFTWARE GROUP IN90385D107COM125,689$26,402,000thousands by filing date
AUTODESK INC COM052769106Stock256,499$25,860,000thousands by filing date
SPIRIT AIRLS INC848577102COM496,256$25,632,000thousands by filing date
PVH CORPORATION COM693656100Stock222,481$25,474,000thousands by filing date
SIGNATURE BANK82669G104COM176,338$25,310,000thousands by filing date
LIVE NATION ENTERTAINMENT INC COM538034109Stock725,855$25,296,000thousands by filing date
FIDELITY NATL INFORMATION SVCS COM31620M106Stock293,900$25,099,000thousands by filing date
MONOLITHIC PWR SYS INC COM609839105Stock259,887$25,053,000thousands by filing date
BRUNSWICK CORP117043109COM397,035$24,906,000thousands by filing date
MGM RESORTS INTERNATIONAL552953101COM791,070$24,753,000thousands by filing date
CARDIOME PHARMA CORP14159U301COM NO PAR5,286,340$23,894,000thousands by filing date
COLUMBIA PROPERTY TRUST INC198287203COM NEW1,037,765$23,225,000thousands by filing date
ACUSHNET HLDGS CORP005098108COM1,132,095$22,461,000thousands by filing date
OREILLY AUTOMOTIVE INC COM67103H107Stock102,435$22,407,000thousands by filing date
WAGEWORKS INC930427109COM328,380$22,067,000thousands by filing date
WATSCO INC COM942622200Stock142,521$21,977,000thousands by filing date
LAM RESEARCH CORP512807108COM154,911$21,909,000thousands by filing date
MASIMO CORP COM574795100Stock232,084$21,161,000thousands by filing date
EXPEDIA GROUP INC COM NEW30212P303Stock137,125$20,425,000thousands by filing date
FIRST REPUBLIC BANK/SAN FRANCI33616C100COM199,610$19,981,000thousands by filing date
QTS RLTY TR INC74736A103COM CL A381,633$19,971,000thousands by filing date
STAG INDUSTRIAL INC85254J102COM714,886$19,731,000thousands by filing date
PACIFIC PREMIER BANCORP INC69478X105COM533,335$19,680,000thousands by filing date
HAIN CELESTIAL GROUP INC405217100COM499,686$19,398,000thousands by filing date
NEVRO CORP64157F103COM254,140$18,916,000thousands by filing date
KELLANOVA487836108COM271,403$18,852,000thousands by filing date
ZAYO GROUP HLDGS INC COM98919V105Stock609,400$18,830,000thousands by filing date
BIOVERATIV INC09075E100COM312,320$18,792,000thousands by filing date
MILACRON HLDGS CORP59870L106COM1,053,495$18,531,000thousands by filing date
AMERICAN CAMPUS COMMUNITIES024835100COM389,765$18,436,000thousands by filing date
MAXIM INTEGRATED PRODS INC57772K101COM407,542$18,299,000thousands by filing date
TOPBUILD COR COM89055F103Stock336,005$17,832,000thousands by filing date
HEXCEL CORP NEW428291108COM327,094$17,267,000thousands by filing date
BROADSOFT INC11133B409COM395,776$17,038,000thousands by filing date
ORBOTECH LTDM75253100ORD497,377$16,224,000thousands by filing date
MARKETAXESS HLDGS INC57060D108COM79,889$16,066,000thousands by filing date
VIACOM INC92553P201CL B463,920$15,574,000thousands by filing date
FLEETCOR TECHNOLOGIES INC339041105COM107,925$15,564,000thousands by filing date
TELEFONAKTIEBOLAGET LM ERICSS ADR B SEK 10294821608ADR2,138,282$15,331,000thousands by filing date
ALKERMES PLCG01767105SHS262,795$15,234,000thousands by filing date
KAPSTONE PAPER AND PACKAGING C48562P103COM720,600$14,866,000thousands by filing date
UNITI GROUP INC91325V108COM552,760$13,896,000thousands by filing date
MATSON INC COM57686G105Stock456,598$13,716,000thousands by filing date
EURONET WORLDWIDE INC COM298736109Stock155,124$13,553,000thousands by filing date
SKYWORKS SOLUTIONS INC COM83088M102Stock137,725$13,215,000thousands by filing date
IPG PHOTONICS CORP44980X109COM89,170$12,939,000thousands by filing date
MASTEC INC COM576323109Stock267,415$12,074,000thousands by filing date
COMMUNITY USD0.0120369C106COM468,307$11,984,000thousands by filing date
ORBCOMM INC68555P100COM1,052,900$11,898,000thousands by filing date
INPHI CORP45772F107COM346,860$11,897,000thousands by filing date
PALO ALTO NETWORKS INC697435105COM86,754$11,609,000thousands by filing date
CME Group Inc. Class A12572Q105COM90,280$11,307,000thousands by filing date
LUMENTUM HLDGS INC COM55024U109Stock191,805$10,942,000thousands by filing date
DOLLAR TREE INC COM256746108Stock153,610$10,740,000thousands by filing date
CHEGG INC163092109COM844,050$10,373,000thousands by filing date
FULLER H B CO COM359694106Stock202,267$10,338,000thousands by filing date
BIOMARIN PHARMACEUTICAL INC09061G101COM111,610$10,136,000thousands by filing date
HENRY JACK & ASSOC INC426281101COM89,419$9,288,000thousands by filing date
LITHIA MTRS INC COM536797103Stock92,601$8,726,000thousands by filing date
TESARO INC881569107COM56,641$7,922,000thousands by filing date
NATIONAL STORAGE AFFILIATES TR COM SHS BEN IN637870106REIT329,528$7,615,000thousands by filing date
WESTERN DIGITAL CORP958102105COM75,450$6,685,000thousands by filing date
Cisco Systems,Inc.17275R102COM206,020$6,448,000thousands by filing date
NATURAL GROCERS BY VITAMIN C63888U108COMMON STOCK764,614$6,323,000thousands by filing date
OCCIDENTAL PETE CORP674599105COM97,710$5,850,000thousands by filing date
DELTA AIR LINES INC COM NEW247361702Stock102,205$5,492,000thousands by filing date
MOTOROLA SOLUTIONS INC COM NEW620076307Stock61,870$5,367,000thousands by filing date
Intel Corp458140100COM157,737$5,322,000thousands by filing date
KIMBERLY-CLARK CORP COM494368103Stock40,827$5,271,000thousands by filing date
Thermo Fisher Scientific Inc.883556102COM30,161$5,262,000thousands by filing date
INTERPUBLIC GROUP COS460690100COM209,945$5,165,000thousands by filing date
CLOROX CO DEL189054109COM36,770$4,899,000thousands by filing date
PAYCHEX INC704326107COM84,345$4,803,000thousands by filing date
BOOZ ALLEN HAMILTON HLDG CORP CL A099502106Stock141,670$4,610,000thousands by filing date
BLACK KNIGHT INC09214X100COM108,190$4,430,000thousands by filing date
MICROCHIP TECHNOLOGY INC. COM595017104Stock56,595$4,368,000thousands by filing date
KKR REAL ESTATE FIN TR INC48251K100COM200,565$4,312,000thousands by filing date
Honeywell Technologies438516106COM28,610$3,813,000thousands by filing date
Lockheed Martin Corporation539830109COM13,718$3,808,000thousands by filing date
Comcast Corp20030N101COM89,770$3,494,000thousands by filing date
Chubb LimitedH1467J104COM15,140$2,201,000thousands by filing date
MARTEN TRANSPORT LTD573075108COM59,140$1,620,000thousands by filing date
WASTE CONNECTIONS INC COM94106B101Stock21,336$1,374,000thousands by filing date
Verizon Communications Inc92343V104COM28,660$1,280,000thousands by filing date
CSX Corporation126408103COM15,000$818,000thousands by filing date
LIONS GATE ENTMNT CORP535919401CL A VTG27,795$784,000thousands by filing date
Merck & Co.,Inc.58933Y105COM12,159$779,000thousands by filing date
PRA HEALTH SCIENCES INC69354M108COM6,900$518,000thousands by filing date
TWILIO INC CL A90138F102Stock12,900$376,000thousands by filing date
GENERAL ELEC CO369604103COM13,538$366,000thousands by filing date
STATE STR CORP COM857477103Stock3,840$345,000thousands by filing date
HUDSON TECHNOLOGIES INC444144109COMMON STOCK40,000$338,000thousands by filing date
VENTAS INC COM92276F100REIT4,719$328,000thousands by filing date
UPBOUND GROUP INC COM76009N100Stock27,800$326,000thousands by filing date
Schlumberger Limited806857108COM4,824$318,000thousands by filing date
International Business Machines Corporation459200101COM2,000$308,000thousands by filing date
BAIDU INC SPON ADR REP A056752108ADR1,600$286,000thousands by filing date
GRUBHUB INC400110102COM5,800$253,000thousands by filing date
TRIPADVISOR INC896945201COM6,600$252,000thousands by filing date
CONTRAFECT CORP212326102COM149,600$217,000thousands by filing date
ZYNGA INC.98986T108CL A59,100$215,000thousands by filing date
ARCOS DORADOS HLDGS INCG0457F107SHS CLASS -A -10,370$77,000thousands by filing date
AU OPTRONICS CORP002255107SPONSORED ADR16,900$77,000thousands by filing date

Amendment chain

FilingRoleFiledAcceptedIngested
13F-HR 0001085146-17-001754this filing2017-08-11acceptance time not in the bulk data set