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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 2019-06-30, filed 2019-08-13, with 243 holding rows worth $13,283,077,000.

Accession
0001085146-19-002214
Filed
2019-08-13
Accepted by EDGAR
acceptance time not in the bulk data set
Ingested
Source
SEC quarterly data set

Original filing

13F report for Q2 2019

A holdings report, 243 entries on the cover page, a total value of $13,283,077,000 stated on the cover page (in dollars after the unit check, H1), rows summing to $13,283,077,000 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
Amazon.com, Inc023135106COM189,159$358,197,000thousands by filing date
Apple Inc037833100COM1,712,069$338,853,000thousands by filing date
Microsoft Corp594918104COM2,056,122$275,438,000thousands by filing date
Visa Inc92826C839COM1,490,102$258,607,000thousands by filing date
ServiceNow,Inc.81762P102COM856,270$235,106,000thousands by filing date
META PLATFORMS INC CL A30303M102COM1,175,421$226,856,000thousands by filing date
Home Depot, Inc437076102COM972,866$202,327,000thousands by filing date
METTLER TOLEDO INTERNATIONAL COM592688105Stock237,642$199,619,000thousands by filing date
INGERSOLL-RAND PLCG47791101SHS1,538,527$194,885,000thousands by filing date
Alphabet Inc. Reg. Shares C02079K107COM173,024$187,023,000thousands by filing date
AMETEK INC COM031100100Stock2,043,271$185,611,000thousands by filing date
Salesforce.com, Inc79466L302COM1,161,370$176,215,000thousands by filing date
TELEDYNE TECHNOLOGIES INC COM879360105Stock642,288$175,903,000thousands by filing date
MEDICINES CO584688105COM4,647,008$169,476,000thousands by filing date
MARATHON PETE CORP COM56585A102Stock3,023,974$168,980,000thousands by filing date
THE COOPER COMPANIES216648402COM NEW480,811$161,980,000thousands by filing date
Alphabet Inc. Reg. Shares A02079K305COM137,694$149,095,000thousands by filing date
Boeing Company097023105COM407,326$148,271,000thousands by filing date
Vertex Pharmaceuticals Incorporated92532F100COM791,320$145,112,000thousands by filing date
Netflix, Inc64110L106COM377,998$138,846,000thousands by filing date
MARRIOTT INTL INC NEW CL A571903202Stock957,706$134,357,000thousands by filing date
Thermo Fisher Scientific Inc.883556102COM454,091$133,357,000thousands by filing date
Walt Disney Co254687106COM913,570$127,571,000thousands by filing date
WORLDPAY INC981558109CL A1,039,370$127,375,000thousands by filing date
Adobe Inc00724F101COM428,287$126,195,000thousands by filing date
Progressive Corporation743315103COM1,552,708$124,108,000thousands by filing date
STERIS PLC SHS USDG8473T100Stock813,999$121,188,000thousands by filing date
CHARTER COMMUNICATIONS INC N16119P108COM303,275$119,848,000thousands by filing date
S&P Global,Inc.78409V104COM522,403$118,998,000thousands by filing date
Union Pacific Corporation907818108COM679,974$114,990,000thousands by filing date
LENNOX INTL INC COM526107107Stock416,789$114,617,000thousands by filing date
BIO RAD LABS INC090572207CL A359,612$112,411,000thousands by filing date
ASCENDIS PHARMA A/S DKK 1.0 AD04351P101SPONSORED ADR971,752$111,897,000thousands by filing date
GALLAGHER ARTHUR J & CO COM363576109Stock1,276,897$111,843,000thousands by filing date
CONSTELLATION BRANDS INC CL A21036P108Stock563,778$111,030,000thousands by filing date
TRANSDIGM GROUP INC COM893641100Stock223,960$108,352,000thousands by filing date
ILLINOIS TOOL WKS INC452308109COM690,169$104,084,000thousands by filing date
T-Mobile US,Inc.872590104COM1,390,705$103,107,000thousands by filing date
ICON PUB LTD CO SHSG4705A100Stock659,490$101,542,000thousands by filing date
Caterpillar Inc.149123101COM744,104$101,414,000thousands by filing date
PAYPALHLDGSINC70450Y103STOK882,413$101,001,000thousands by filing date
Bristol-Myers Squibb Company110122108COM2,192,718$99,440,000thousands by filing date
Bank of America Corp060505104COM3,427,007$99,383,000thousands by filing date
TRANSUNION COM89400J107Stock1,331,468$97,876,000thousands by filing date
TOTAL SYS SVCS INC891906109COM711,688$91,288,000thousands by filing date
AVERY DENNISON CORP COM053611109Stock775,566$89,717,000thousands by filing date
ULTA BEAUTY INC COM90384S303Stock253,268$87,856,000thousands by filing date
ZENDESK INC98936J101COM982,224$87,447,000thousands by filing date
ON SEMICONDUCTOR CORP COM682189105Stock4,101,364$82,889,000thousands by filing date
Broadcom Inc.11135F101COM287,011$82,619,000thousands by filing date
HILTON WORLDWIDE HLDGS INC COM43300A203Stock815,547$79,712,000thousands by filing date
FORTINET INC COM34959E109Stock1,037,045$79,676,000thousands by filing date
Walmart Inc.931142103COM718,749$79,415,000thousands by filing date
Applied Materials,Inc.038222105COM1,753,698$78,759,000thousands by filing date
NICE LTD SPONSORED ADR653656108ADR573,311$78,544,000thousands by filing date
HUNT J B TRANS SVCS INC COM445658107Stock845,329$77,272,000thousands by filing date
EOG RES INC COM26875P101Stock821,057$76,490,000thousands by filing date
PIONEER NATURAL RESOURCES CO723787107COM495,128$76,180,000thousands by filing date
BROOKFIELD ASSET MANAGEMENT IN112585104CL A LTD VT SH1,578,599$75,425,000thousands by filing date
TOPBUILD COR COM89055F103Stock909,408$75,263,000thousands by filing date
Analog Devices,Inc.032654105COM664,057$74,952,000thousands by filing date
UnitedHealth Group Inc91324P102COM303,123$73,965,000thousands by filing date
BLACK KNIGHT INC COM09215C105Stock1,226,767$73,790,000thousands by filing date
SPLUNK INC848637104COM571,187$71,827,000thousands by filing date
IHS MARKIT LTDG47567105SHS1,089,644$69,432,000thousands by filing date
ELDORADO RESORTS INC28470R102COM1,470,451$67,744,000thousands by filing date
ESSENT GROUP LTD COMG3198U102Stock1,385,880$65,123,000thousands by filing date
Qualcomm Incorporated747525103COM850,251$64,679,000thousands by filing date
SBA COMMUNICATIONS CORP CL A78410G104REIT287,511$64,644,000thousands by filing date
SS&C TECH HLDGS COM78467J100Stock1,121,608$64,616,000thousands by filing date
IDEXX LABS INC COM45168D104Stock232,800$64,097,000thousands by filing date
TWILIO INC CL A90138F102Stock467,002$63,676,000thousands by filing date
FLEETCOR TECHNOLOGIES INC339041105COM224,550$63,065,000thousands by filing date
HAEMONETICS CORP MASS COM405024100Stock520,178$62,598,000thousands by filing date
AUTODESK INC COM052769106Stock372,600$60,697,000thousands by filing date
MADISON SQUARE GRDN SPRT CORP CL A55825T103Stock209,068$58,526,000thousands by filing date
BLUEPRINT MEDICINES CORP09627Y109COM612,380$57,766,000thousands by filing date
EVERPURE INC CL A74624M102Stock3,772,827$57,611,000thousands by filing date
TRACTOR SUPPLY CO COM892356106Stock524,639$57,081,000thousands by filing date
FAIR ISAAC CORP COM303250104Stock178,341$56,003,000thousands by filing date
CONAGRA FOODS INC205887102COM2,106,329$55,860,000thousands by filing date
WOODWARD INC COM980745103Stock490,039$55,453,000thousands by filing date
LUMENTUM HLDGS INC COM55024U109Stock1,027,148$54,860,000thousands by filing date
NIKE,Inc. Class B654106103COM653,307$54,845,000thousands by filing date
Micron Technology,Inc.595112103COM1,418,588$54,743,000thousands by filing date
FIVE BELOW INC COM33829M101Stock454,896$54,597,000thousands by filing date
LPL FINL HLDGS INC COM50212V100Stock664,359$54,192,000thousands by filing date
HEICO CORP NEW422806208CL A519,389$53,689,000thousands by filing date
LULULEMON ATHLETICA INC550021109COM296,422$53,418,000thousands by filing date
RPM INTL INC COM749685103Stock853,148$52,136,000thousands by filing date
HARRIS CORP INC413875105COM271,575$51,363,000thousands by filing date
FLOWSERVE CORP34354P105COM963,108$50,746,000thousands by filing date
ROSS STORES INC COM778296103Stock508,891$50,441,000thousands by filing date
ACCELERON PHARMA INC00434H108COM1,220,161$50,124,000thousands by filing date
PROOFPOINT INC743424103COM413,364$49,707,000thousands by filing date
SPIRIT RLTY CAP INC NEW NPV84860W300COM NEW1,162,327$49,585,000thousands by filing date
FIDELITY NATL INFORMATION SVCS COM31620M106Stock397,761$48,797,000thousands by filing date
PALO ALTO NETWORKS INC697435105COM238,769$48,652,000thousands by filing date
QUEST DIAGNOSTICS INC COM74834L100Stock472,751$48,131,000thousands by filing date
SUMMIT MATERIALS INC CLASS A86614U100CL A2,468,009$47,509,000thousands by filing date
PBF ENERGY INC69318G106CL A1,511,991$47,325,000thousands by filing date
MICROCHIP TECHNOLOGY INC. COM595017104Stock528,624$45,832,000thousands by filing date
ADVANCE AUTO PARTS INC00751Y106COM294,274$45,359,000thousands by filing date
COSTAR GROUP INC COM22160N109Stock81,494$45,153,000thousands by filing date
LAM RESEARCH CORP512807108COM238,505$44,801,000thousands by filing date
REALPAGE INC75606N109COM750,917$44,191,000thousands by filing date
QTS RLTY TR INC74736A103COM CL A943,955$43,592,000thousands by filing date
RAYMOND JAMES FINL INC COM754730109Stock507,212$42,885,000thousands by filing date
KEMPER CORP COM488401100Stock495,420$42,750,000thousands by filing date
GUIDEWIRE SOFTWARE INC COM40171V100Stock412,661$41,836,000thousands by filing date
AVNET INC COM053807103Stock921,010$41,694,000thousands by filing date
FISERV INC337738108COM456,776$41,640,000thousands by filing date
SAREPTA THERAPEUTICS INC803607100COM273,857$41,613,000thousands by filing date
WPX ENERGY INC98212B103COM3,594,836$41,377,000thousands by filing date
YUM CHINA HLDGS INC98850P109COM884,346$40,857,000thousands by filing date
GODADDY INC CL A380237107Stock560,344$39,308,000thousands by filing date
ROGERS CORP COM775133101Stock225,020$38,834,000thousands by filing date
DIAMONDBACK ENERGY INC COM25278X109Stock354,702$38,652,000thousands by filing date
COGNIZANT TECHNOLOGY SOLUTIONS CL A192446102Stock607,347$38,500,000thousands by filing date
INTEGRA LIFESCIENCES HLDGS C457985208COM NEW669,817$37,409,000thousands by filing date
DEXCOM INC COM252131107Stock246,680$36,963,000thousands by filing date
NCR VOYIX CORPORATION62886E108COM1,184,401$36,835,000thousands by filing date
BERRY GLOBAL GROUP INC08579W103COM696,307$36,619,000thousands by filing date
SUN CMNTYS INC COM866674104REIT276,545$35,450,000thousands by filing date
MSCI INC COM55354G100Stock146,946$35,089,000thousands by filing date
SIGNATURE BANK82669G104COM288,860$34,906,000thousands by filing date
GRACE W R & CO DEL NEW COM38388F108Stock450,536$34,290,000thousands by filing date
TREX CO INC89531P105COM477,104$34,208,000thousands by filing date
EXACT SCIENCES CORP COM30063P105Stock281,730$33,255,000thousands by filing date
ROCKWELL AUTOMATION INC COM773903109Stock201,478$33,008,000thousands by filing date
NEWMARK GROUP INC65158N102CL A3,643,445$32,718,000thousands by filing date
STRATEGIC ED INC COM86272C103Stock182,781$32,535,000thousands by filing date
COHERENT INC192479103COM237,624$32,405,000thousands by filing date
BLOCK INC CL A852234103Stock441,850$32,047,000thousands by filing date
INTERXION HOLDING N.VN47279109SHS419,255$31,901,000thousands by filing date
ALNYLAM PHARMACEUTICALS INC COM02043Q107Stock436,033$31,639,000thousands by filing date
BURLINGTON STORES INC COM122017106Stock184,273$31,354,000thousands by filing date
BRIGHT HORIZONS FAM SOL IN DEL COM109194100Stock205,953$31,072,000thousands by filing date
V F CORP COM918204108Stock346,707$30,285,000thousands by filing date
INGEVITY CORP COM45688C107Stock283,955$29,864,000thousands by filing date
LINCOLN ELEC HLDGS INC533900106COM359,081$29,560,000thousands by filing date
RUSH ENTERPRISES INC CL A781846209Stock804,535$29,382,000thousands by filing date
XILINX INC983919101COM248,888$29,349,000thousands by filing date
SVB FINANCIAL GROUP78486Q101COM128,971$28,966,000thousands by filing date
MASIMO CORP COM574795100Stock187,977$27,975,000thousands by filing date
INTERSECT ENT INC46071F103COM1,214,025$27,631,000thousands by filing date
WEX INC96208T104COM132,458$27,565,000thousands by filing date
ENVESTNET INC29404K106COM400,630$27,391,000thousands by filing date
CYRUSONE INC23283R100COM474,468$27,386,000thousands by filing date
ENTEGRIS INC COM29362U104Stock716,591$26,743,000thousands by filing date
PERFORMANCE FOOD GROUP CO COM71377A103Stock664,184$26,587,000thousands by filing date
IRONWOOD PHARMACEUTICALS INC46333X108COMMON STOCK2,392,774$26,177,000thousands by filing date
CHARLES RIV LABS INTL INC159864107COM182,179$25,851,000thousands by filing date
RYDER SYS INC COM783549108Stock441,197$25,722,000thousands by filing date
MSA SAFETY INC COM553498106Stock243,764$25,690,000thousands by filing date
VIAVI SOLUTIONS INC925550105COM1,826,829$24,279,000thousands by filing date
GRAND CANYON ED INC COM38526M106Stock206,760$24,195,000thousands by filing date
WNS HOLDINGS LTD92932M101SPON ADR408,545$24,186,000thousands by filing date
8X8 INC282914100COMMON STOCK998,091$24,054,000thousands by filing date
AGIOS PHARMACEUTICALS INC00847X104COM479,750$23,930,000thousands by filing date
MERITOR INC59001K100COMMON STOCK968,200$23,479,000thousands by filing date
CATALENT INC USD 0.01148806102COM431,060$23,368,000thousands by filing date
NUANCE COMMUNICATIONS INC67020Y100COM1,413,776$22,578,000thousands by filing date
ORION S.A.L72967109COM1,040,894$22,286,000thousands by filing date
WOLVERINE WORLD WIDE INC978097103COM800,268$22,039,000thousands by filing date
CERIDIAN HCM HLDG INC15677J108COM432,657$21,719,000thousands by filing date
TIMKEN CO887389104COM420,708$21,599,000thousands by filing date
ACACIA COMMUNICATIONS INC00401C108COM453,914$21,407,000thousands by filing date
TABLEAU SOFTWARE INC87336U105CL A127,018$21,088,000thousands by filing date
FIRST HAWAIIAN INC32051X108COM814,629$21,074,000thousands by filing date
FIDELITY NATIONAL FINANCIAL31620R303FNF GROUP COM520,545$20,978,000thousands by filing date
HAMILTON LANE INC407497106CL A364,517$20,799,000thousands by filing date
RALPH LAUREN CORP751212101CL A179,757$20,419,000thousands by filing date
OLD DOMINION FREIGHT LINE INC COM679580100Stock136,582$20,386,000thousands by filing date
CHILDRENS PL INC NEW168905107COM212,908$20,307,000thousands by filing date
NEW RELIC INC64829B100COMMON STOCK225,054$19,469,000thousands by filing date
AMERICAN EAGLE OUTFITTERS INC COM02553E106Stock1,114,745$18,839,000thousands by filing date
CABOT MICROELECTRONICS CORP12709P103COM170,078$18,722,000thousands by filing date
COVETRUS INC22304C100COM742,350$18,158,000thousands by filing date
FIRSTCASH HOLDINGS INC.33767D105Common Stock179,353$17,939,000thousands by filing date
TELADOC HEALTH INC87918A105COM263,354$17,489,000thousands by filing date
FATE THERAPEUTICS INC31189P102COM858,749$17,433,000thousands by filing date
NEXSTAR MEDIA GROUP INC COMMON STOCK65336K103Stock161,170$16,278,000thousands by filing date
MOMENTA PHARMACEUTICALS INC60877T100COM1,251,779$15,585,000thousands by filing date
ORCHARD THERAPEUTICS PLC68570P101ADR1,044,336$14,610,000thousands by filing date
STRATEGY INC CL A NEW594972408Stock100,810$14,447,000thousands by filing date
WRIGHT MED GROUP N VN96617118ORD SHS480,957$14,342,000thousands by filing date
BANK OF N T BUTTERFIELD & SOG0772R208SHS NEW417,429$14,176,000thousands by filing date
FIBROGEN INC31572Q808COM308,493$13,938,000thousands by filing date
PAYLOCITY HLDG CORP COM70438V106Stock146,375$13,733,000thousands by filing date
MATSON INC COM57686G105Stock313,804$12,191,000thousands by filing date
Abbott Laboratories002824100COM133,047$11,189,000thousands by filing date
SMARTSHEET INC. (CLASS A)83200N103COM CL A216,844$10,495,000thousands by filing date
CORREVIO PHARMA CORP22026V105COM4,825,255$10,423,000thousands by filing date
WORLD WRESTLING ENTMT INC98156Q108CL A135,111$9,756,000thousands by filing date
APELLIS PHARMACEUTICALS INC03753U106COM382,212$9,685,000thousands by filing date
ROCKET PHARMACEUTICALS INC77313F106COM564,132$8,462,000thousands by filing date
Texas Instruments Incorporated882508104COM72,875$8,363,000thousands by filing date
Merck & Co.,Inc.58933Y105COM98,514$8,260,000thousands by filing date
VALERO ENERGY CORP COM91913Y100Stock94,315$8,074,000thousands by filing date
Coca-Cola Company191216100COM151,940$7,737,000thousands by filing date
Verizon Communications Inc92343V104COM134,675$7,694,000thousands by filing date
ROYAL CARIBBEAN GROUP COMV7780T103Stock62,810$7,613,000thousands by filing date
JPMorgan Chase & Co46625H100COM65,010$7,268,000thousands by filing date
ALEXANDRIA REAL ESTATE EQ INC COM015271109REIT50,590$7,138,000thousands by filing date
HENRY JACK & ASSOC INC426281101COM47,909$6,416,000thousands by filing date
NextEra Energy,Inc.65339F101COM30,530$6,254,000thousands by filing date
CUMMINS INC COM231021106Stock36,500$6,254,000thousands by filing date
FIFTH THIRD BANCORP COM316773100Stock217,400$6,065,000thousands by filing date
TARGET CORP COM87612E106Stock68,955$5,972,000thousands by filing date
CVS Health Corporation126650100COM109,060$5,943,000thousands by filing date
CME Group Inc. Class A12572Q105COM27,304$5,300,000thousands by filing date
Danaher Corporation235851102COM36,816$5,262,000thousands by filing date
Starbucks Corporation855244109COM61,799$5,181,000thousands by filing date
ARCHER DANIELS MIDLAND CO COM039483102Stock116,134$4,738,000thousands by filing date
GARTNERINC366651107STOK28,804$4,636,000thousands by filing date
LIVE NATION ENTERTAINMENT INC COM538034109Stock47,350$3,137,000thousands by filing date
VAIL RESORTS INC COM91879Q109Stock12,140$2,709,000thousands by filing date
CELANESE CORP DEL COM150870103Stock21,530$2,321,000thousands by filing date
GROCERY OUTLET HLDG CORP COM39874R101Stock64,586$2,124,000thousands by filing date
EAST WEST BANCORP INC COM27579R104Stock39,030$1,825,000thousands by filing date
MARTEN TRANSPORT LTD573075108COM98,166$1,782,000thousands by filing date
WASTE CONNECTIONS INC COM94106B101Stock12,686$1,213,000thousands by filing date
NEKTAR THERAPEUTICS640268108COM25,250$898,000thousands by filing date
CSX Corporation126408103COM9,530$737,000thousands by filing date
UNIVAR INC91336L107COMMON STOCK27,650$609,000thousands by filing date
NXP SEMICONDUCTORS N V COMN6596X109Stock6,091$595,000thousands by filing date
BIOGEN INC COM09062X103Stock2,454$574,000thousands by filing date
TANDEM DIABETES CARE INC875372203COM NEW8,200$529,000thousands by filing date
BOYDGAMINGCORP103304101STOK18,820$507,000thousands by filing date
WEST PHARMACEUTICAL SVSC INC COM955306105Stock3,700$463,000thousands by filing date
AXONICS INC05465P101COM10,900$447,000thousands by filing date
NASDAQ INC COM631103108Stock3,850$370,000thousands by filing date
THUNDER BRIDGE ACQUISITION LG8857R100SHS CLASS A34,300$358,000thousands by filing date
CBOE GLOBAL MKTS INC COM12503M108Stock3,400$352,000thousands by filing date
VENTAS INC COM92276F100REIT4,719$323,000thousands by filing date
Concho Resources Inc.20605P101COM3,100$320,000thousands by filing date
GROUPON INC399473107COMMON STOCK87,700$314,000thousands by filing date
PALOMAR HLDGS INC COM69753M105Stock12,340$297,000thousands by filing date
International Business Machines Corporation459200101COM2,000$276,000thousands by filing date
QUOTIENT LTDG73268107SHS24,100$225,000thousands by filing date
TURNING PT THERAPEUTICS90041T108COM5,500$224,000thousands by filing date
NEON THERAPEUTICS INC64050Y100COM31,400$149,000thousands by filing date

Amendment chain

FilingRoleFiledAcceptedIngested
13F-HR 0001085146-19-002214this filing2019-08-13acceptance time not in the bulk data set