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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 2019-09-30, filed 2019-11-08, with 234 holding rows worth $12,488,835,000.

Accession
0001085146-19-002801
Filed
2019-11-08
Accepted by EDGAR
acceptance time not in the bulk data set
Ingested
Source
SEC quarterly data set

Original filing

13F report for Q3 2019

A holdings report, 234 entries on the cover page, a total value of $12,488,835,000 stated on the cover page (in dollars after the unit check, H1), rows summing to $12,488,835,000 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
MEDICINES CO584688105COM6,468,402$323,420,000thousands by filing date
Microsoft Corp594918104COM2,262,099$314,500,000thousands by filing date
Apple Inc037833100COM1,390,886$311,517,000thousands by filing date
Amazon.com, Inc023135106COM175,561$304,758,000thousands by filing date
Alphabet Inc. Reg. Shares A02079K305COM229,334$280,049,000thousands by filing date
Visa Inc92826C839COM1,365,133$234,817,000thousands by filing date
META PLATFORMS INC CL A30303M102COM1,305,621$232,505,000thousands by filing date
TELEDYNE TECHNOLOGIES INC COM879360105Stock654,085$210,609,000thousands by filing date
FIDELITY NATL INFORMATION SVCS COM31620M106Stock1,581,476$209,957,000thousands by filing date
ServiceNow,Inc.81762P102COM743,894$188,837,000thousands by filing date
Home Depot, Inc437076102COM798,456$185,258,000thousands by filing date
INGERSOLL-RAND PLCG47791101SHS1,400,105$172,507,000thousands by filing date
Salesforce.com, Inc79466L302COM1,130,739$167,847,000thousands by filing date
MARATHON PETE CORP COM56585A102Stock2,739,997$166,455,000thousands by filing date
AMETEK INC COM031100100Stock1,797,857$165,079,000thousands by filing date
L3HARRIS TECHNOLOGIES INC COM502431109Stock772,420$161,158,000thousands by filing date
METTLER TOLEDO INTERNATIONAL COM592688105Stock225,663$158,957,000thousands by filing date
Vertex Pharmaceuticals Incorporated92532F100COM932,748$158,026,000thousands by filing date
CHARTER COMMUNICATIONS INC N16119P108COM358,607$147,789,000thousands by filing date
GLOBAL PMTS INC37940X102COM898,516$142,864,000thousands by filing date
BIO RAD LABS INC090572207CL A411,912$137,060,000thousands by filing date
Thermo Fisher Scientific Inc.883556102COM467,476$136,162,000thousands by filing date
ILLINOIS TOOL WKS INC452308109COM787,021$123,161,000thousands by filing date
S&P Global,Inc.78409V104COM484,879$118,786,000thousands by filing date
TRANSDIGM GROUP INC COM893641100Stock226,591$117,979,000thousands by filing date
THE COOPER COMPANIES216648402COM NEW381,437$113,287,000thousands by filing date
ASCENDIS PHARMA A/S DKK 1.0 AD04351P101SPONSORED ADR1,124,054$108,269,000thousands by filing date
BROOKFIELD ASSET MANAGEMENT IN112585104CL A LTD VT SH2,024,096$107,459,000thousands by filing date
Adobe Inc00724F101COM385,086$106,380,000thousands by filing date
CONSTELLATION BRANDS INC CL A21036P108Stock501,956$104,045,000thousands by filing date
TRANSUNION COM89400J107Stock1,274,873$103,405,000thousands by filing date
Applied Materials,Inc.038222105COM2,035,706$101,582,000thousands by filing date
STERIS PLC SHS USDG8473T100Stock698,993$100,997,000thousands by filing date
GALLAGHER ARTHUR J & CO COM363576109Stock1,122,585$100,550,000thousands by filing date
MARRIOTT INTL INC NEW CL A571903202Stock802,404$99,795,000thousands by filing date
ALEXANDRIA REAL ESTATE EQ INC COM015271109REIT634,635$97,759,000thousands by filing date
ICON PUB LTD CO SHSG4705A100Stock657,146$96,824,000thousands by filing date
T-Mobile US,Inc.872590104COM1,219,802$96,084,000thousands by filing date
Broadcom Inc.11135F101COM347,320$95,885,000thousands by filing date
SPLUNK INC848637104COM796,417$93,866,000thousands by filing date
Caterpillar Inc.149123101COM741,006$93,596,000thousands by filing date
HUNT J B TRANS SVCS INC COM445658107Stock844,002$93,389,000thousands by filing date
TOPBUILD COR COM89055F103Stock923,136$89,018,000thousands by filing date
Union Pacific Corporation907818108COM542,837$87,929,000thousands by filing date
TREX CO INC89531P105COM955,488$86,883,000thousands by filing date
DEXCOM INC COM252131107Stock581,453$86,776,000thousands by filing date
BLACKSTONE INC09260D107COM1,763,111$86,110,000thousands by filing date
Bristol-Myers Squibb Company110122108COM1,674,853$84,932,000thousands by filing date
NICE LTD SPONSORED ADR653656108ADR568,083$81,690,000thousands by filing date
Cisco Systems,Inc.17275R102COM1,645,021$81,280,000thousands by filing date
Walt Disney Co254687106COM621,515$80,996,000thousands by filing date
IDEXX LABS INC COM45168D104Stock295,127$80,254,000thousands by filing date
Boston Scientific Corporation101137107COM1,971,434$80,218,000thousands by filing date
FORTINET INC COM34959E109Stock999,989$76,759,000thousands by filing date
Walmart Inc.931142103COM629,758$74,740,000thousands by filing date
Progressive Corporation743315103COM954,837$73,761,000thousands by filing date
LPL FINL HLDGS INC COM50212V100Stock883,940$72,395,000thousands by filing date
ON SEMICONDUCTOR CORP COM682189105Stock3,767,480$72,373,000thousands by filing date
HILTON WORLDWIDE HLDGS INC COM43300A203Stock770,568$71,748,000thousands by filing date
PAYPALHLDGSINC70450Y103STOK665,171$68,905,000thousands by filing date
ZENDESK INC98936J101COM938,686$68,411,000thousands by filing date
ESSENT GROUP LTD COMG3198U102Stock1,432,232$68,274,000thousands by filing date
BLACK KNIGHT INC COM09215C105Stock1,078,374$65,846,000thousands by filing date
OPTIMUM COMMUNICATIONS INC02156K103CL A2,277,376$65,315,000thousands by filing date
ULTA BEAUTY INC COM90384S303Stock256,337$64,251,000thousands by filing date
WEX INC96208T104COM316,992$64,055,000thousands by filing date
SPIRIT RLTY CAP INC NEW NPV84860W300COM NEW1,336,446$63,962,000thousands by filing date
FIVE BELOW INC COM33829M101Stock503,962$63,550,000thousands by filing date
WOODWARD INC COM980745103Stock583,368$62,905,000thousands by filing date
BLUEPRINT MEDICINES CORP09627Y109COM846,959$62,226,000thousands by filing date
HAEMONETICS CORP MASS COM405024100Stock491,083$61,945,000thousands by filing date
FAIR ISAAC CORP COM303250104Stock200,871$60,968,000thousands by filing date
FLEETCOR TECHNOLOGIES INC339041105COM212,306$60,885,000thousands by filing date
LULULEMON ATHLETICA INC550021109COM313,959$60,447,000thousands by filing date
LINCOLN ELEC HLDGS INC533900106COM687,879$59,680,000thousands by filing date
IHS MARKIT LTDG47567105SHS870,236$58,201,000thousands by filing date
EVERPURE INC CL A74624M102Stock3,343,154$56,633,000thousands by filing date
PIONEER NATURAL RESOURCES CO723787107COM448,224$56,373,000thousands by filing date
PBF ENERGY INC69318G106CL A2,066,779$56,196,000thousands by filing date
MADISON SQUARE GRDN SPRT CORP CL A55825T103Stock209,261$55,144,000thousands by filing date
ELDORADO RESORTS INC28470R102COM1,360,859$54,257,000thousands by filing date
PROOFPOINT INC743424103COM414,827$53,533,000thousands by filing date
FISERV INC337738108COM508,284$52,653,000thousands by filing date
ROSS STORES INC COM778296103Stock478,713$52,587,000thousands by filing date
EOG RES INC COM26875P101Stock703,935$52,246,000thousands by filing date
AUTODESK INC COM052769106Stock352,437$52,055,000thousands by filing date
QUEST DIAGNOSTICS INC COM74834L100Stock465,479$49,820,000thousands by filing date
ACCELERON PHARMA INC00434H108COM1,237,031$48,875,000thousands by filing date
RPM INTL INC COM749685103Stock679,773$46,775,000thousands by filing date
TAKE-TWO INTERACTIVE SOFTWARE COM874054109Stock371,975$46,623,000thousands by filing date
MICROCHIP TECHNOLOGY INC. COM595017104Stock501,723$46,615,000thousands by filing date
REALPAGE INC75606N109COM740,891$46,572,000thousands by filing date
PALO ALTO NETWORKS INC697435105COM225,880$46,041,000thousands by filing date
HEICO CORP NEW422806208CL A467,200$45,463,000thousands by filing date
TWILIO INC CL A90138F102Stock413,348$45,452,000thousands by filing date
COGNIZANT TECHNOLOGY SOLUTIONS CL A192446102Stock753,613$45,416,000thousands by filing date
FLOWSERVE CORP34354P105COM966,528$45,147,000thousands by filing date
8X8 INC282914100COMMON STOCK2,139,452$44,329,000thousands by filing date
SBA COMMUNICATIONS CORP CL A78410G104REIT182,413$43,989,000thousands by filing date
QTS RLTY TR INC74736A103COM CL A836,581$43,009,000thousands by filing date
GUIDEWIRE SOFTWARE INC COM40171V100Stock406,798$42,868,000thousands by filing date
NCR VOYIX CORPORATION62886E108COM1,352,719$42,692,000thousands by filing date
SUMMIT MATERIALS INC CLASS A86614U100CL A1,848,819$41,044,000thousands by filing date
D R HORTON INC COM23331A109Stock739,829$38,996,000thousands by filing date
YUM CHINA HLDGS INC98850P109COM844,172$38,351,000thousands by filing date
WPX ENERGY INC98212B103COM3,616,070$38,294,000thousands by filing date
INTERXION HOLDING N.VN47279109SHS465,598$37,928,000thousands by filing date
RUSH ENTERPRISES INC CL A781846209Stock958,754$36,989,000thousands by filing date
SS&C TECH HLDGS COM78467J100Stock711,338$36,684,000thousands by filing date
V F CORP COM918204108Stock412,199$36,682,000thousands by filing date
SUN CMNTYS INC COM866674104REIT246,662$36,617,000thousands by filing date
MSCI INC COM55354G100Stock165,191$35,970,000thousands by filing date
COHERENT INC192479103COM233,040$35,823,000thousands by filing date
ORION S.A.L72967109COM2,092,346$34,963,000thousands by filing date
IAC INTERACTIVECORP44919P508COM159,993$34,874,000thousands by filing date
COSTAR GROUP INC COM22160N109Stock57,752$34,258,000thousands by filing date
KNOWLES CORP COM49926D109Stock1,673,052$34,030,000thousands by filing date
MASIMO CORP COM574795100Stock221,445$32,949,000thousands by filing date
SIGNATURE BANK82669G104COM266,013$31,714,000thousands by filing date
ROCKWELL AUTOMATION INC COM773903109Stock190,195$31,344,000thousands by filing date
DIAMONDBACK ENERGY INC COM25278X109Stock346,337$31,139,000thousands by filing date
BURLINGTON STORES INC COM122017106Stock154,913$30,955,000thousands by filing date
HUBSPOTINC443573100STOK201,118$30,491,000thousands by filing date
PERFORMANCE FOOD GROUP CO COM71377A103Stock655,537$30,161,000thousands by filing date
GRACE W R & CO DEL NEW COM38388F108Stock444,050$29,645,000thousands by filing date
CHARLES RIV LABS INTL INC159864107COM219,658$29,076,000thousands by filing date
TIMKEN CO887389104COM656,689$28,573,000thousands by filing date
LAM RESEARCH CORP512807108COM123,034$28,434,000thousands by filing date
CABOT MICROELECTRONICS CORP12709P103COM198,104$27,974,000thousands by filing date
ENTEGRIS INC COM29362U104Stock575,740$27,094,000thousands by filing date
FIDELITY NATIONAL FINANCIAL31620R303FNF GROUP COM604,673$26,854,000thousands by filing date
FIRSTCASH HOLDINGS INC.33767D105Common Stock285,922$26,210,000thousands by filing date
CERIDIAN HCM HLDG INC15677J108COM530,376$26,185,000thousands by filing date
PAPA JOHNS INTL INC698813102COM491,420$25,726,000thousands by filing date
STRATEGIC ED INC COM86272C103Stock187,466$25,473,000thousands by filing date
ARISTA NETWORKS INC040413106COM106,420$25,426,000thousands by filing date
FMC CORP COM NEW302491303Stock289,554$25,388,000thousands by filing date
KEMPER CORP COM488401100Stock323,931$25,250,000thousands by filing date
WNS HOLDINGS LTD92932M101SPON ADR425,536$25,000,000thousands by filing date
INGEVITY CORP COM45688C107Stock290,874$24,678,000thousands by filing date
SAREPTA THERAPEUTICS INC803607100COM320,561$24,145,000thousands by filing date
INTEGRA LIFESCIENCES HLDGS C457985208COM NEW395,377$23,750,000thousands by filing date
NUANCE COMMUNICATIONS INC67020Y100COM1,453,242$23,702,000thousands by filing date
CATALENT INC USD 0.01148806102COM488,640$23,289,000thousands by filing date
BRIGHT HORIZONS FAM SOL IN DEL COM109194100Stock151,203$23,058,000thousands by filing date
OLD DOMINION FREIGHT LINE INC COM679580100Stock134,625$22,882,000thousands by filing date
ALNYLAM PHARMACEUTICALS INC COM02043Q107Stock280,297$22,541,000thousands by filing date
IRONWOOD PHARMACEUTICALS INC46333X108COMMON STOCK2,522,489$21,656,000thousands by filing date
VIAVI SOLUTIONS INC925550105COM1,545,887$21,650,000thousands by filing date
MIMECAST LIMITEDG14838109ORD SHS606,169$21,622,000thousands by filing date
MSA SAFETY INC COM553498106Stock197,523$21,552,000thousands by filing date
ROGERS CORP COM775133101Stock154,397$21,108,000thousands by filing date
COUPA SOFTWARE INCORPORATED22266L106COM162,244$21,022,000thousands by filing date
LUMENTUM HLDGS INC COM55024U109Stock389,479$20,860,000thousands by filing date
SAGE THERAPEUTICS INC78667J108COM146,961$20,617,000thousands by filing date
INTERSECT ENT INC46071F103COM1,196,926$20,360,000thousands by filing date
WESTERN DIGITAL CORP958102105COM340,545$20,310,000thousands by filing date
GRAND CANYON ED INC COM38526M106Stock200,490$19,688,000thousands by filing date
PACIRA BIOSCIENCES INC COM695127100Stock514,929$19,603,000thousands by filing date
RYDER SYS INC COM783549108Stock372,286$19,273,000thousands by filing date
BERRY GLOBAL GROUP INC08579W103COM490,635$19,267,000thousands by filing date
Apollo Global Management Inc03768E105COM CL A490,587$18,554,000thousands by filing date
TELADOC HEALTH INC87918A105COM270,363$18,309,000thousands by filing date
Alphabet Inc. Reg. Shares C02079K107COM14,969$18,247,000thousands by filing date
CYRUSONE INC23283R100COM230,593$18,240,000thousands by filing date
HAMILTON LANE INC407497106CL A317,047$18,059,000thousands by filing date
MERITOR INC59001K100COMMON STOCK954,164$17,652,000thousands by filing date
RMR GROUP INC74967R106CL A383,509$17,442,000thousands by filing date
ZYNGA INC.98986T108CL A2,940,081$17,111,000thousands by filing date
PALOMAR HLDGS INC COM69753M105Stock387,463$15,274,000thousands by filing date
PAYLOCITY HLDG CORP COM70438V106Stock149,639$14,602,000thousands by filing date
SMARTSHEET INC. (CLASS A)83200N103COM CL A399,155$14,382,000thousands by filing date
AMERICAN EAGLE OUTFITTERS INC COM02553E106Stock870,133$14,114,000thousands by filing date
FATE THERAPEUTICS INC31189P102COM905,619$14,064,000thousands by filing date
FIRST HAWAIIAN INC32051X108COM516,760$13,797,000thousands by filing date
ENVESTNET INC29404K106COM234,554$13,299,000thousands by filing date
MATSON INC COM57686G105Stock344,878$12,936,000thousands by filing date
ORCHARD THERAPEUTICS PLC68570P101ADR1,077,111$12,796,000thousands by filing date
MOMENTA PHARMACEUTICALS INC60877T100COM983,216$12,742,000thousands by filing date
TRADEWEB MKTS INC CL A892672106Stock335,643$12,412,000thousands by filing date
FIBROGEN INC31572Q808COM316,045$11,687,000thousands by filing date
AVERY DENNISON CORP COM053611109Stock97,195$11,038,000thousands by filing date
Abbott Laboratories002824100COM130,462$10,916,000thousands by filing date
REPAY HLDGS CORP76029L100COM CL A734,214$9,787,000thousands by filing date
CORREVIO PHARMA CORP22026V105COM4,876,455$9,753,000thousands by filing date
Texas Instruments Incorporated882508104COM71,685$9,265,000thousands by filing date
WORLD WRESTLING ENTMT INC98156Q108CL A129,065$9,183,000thousands by filing date
ROCKET PHARMACEUTICALS INC77313F106COM786,114$9,158,000thousands by filing date
COVETRUS INC22304C100COM730,716$8,688,000thousands by filing date
Merck & Co.,Inc.58933Y105COM97,284$8,189,000thousands by filing date
Coca-Cola Company191216100COM149,420$8,134,000thousands by filing date
Verizon Communications Inc92343V104COM133,335$8,048,000thousands by filing date
VAIL RESORTS INC COM91879Q109Stock33,641$7,655,000thousands by filing date
JPMorgan Chase & Co46625H100COM64,010$7,533,000thousands by filing date
TARGET CORP COM87612E106Stock67,195$7,184,000thousands by filing date
APELLIS PHARMACEUTICALS INC03753U106COM293,901$7,080,000thousands by filing date
NextEra Energy,Inc.65339F101COM30,193$7,035,000thousands by filing date
HENRY JACK & ASSOC INC426281101COM47,219$6,893,000thousands by filing date
CVS Health Corporation126650100COM107,880$6,804,000thousands by filing date
ARCHER DANIELS MIDLAND CO COM039483102Stock151,189$6,209,000thousands by filing date
FIFTH THIRD BANCORP COM316773100Stock211,870$5,801,000thousands by filing date
CME Group Inc. Class A12572Q105COM25,825$5,458,000thousands by filing date
Starbucks Corporation855244109COM60,481$5,348,000thousands by filing date
Danaher Corporation235851102COM35,518$5,130,000thousands by filing date
DARDEN RESTAURANTS INC COM237194105Stock42,862$5,067,000thousands by filing date
Pfizer Inc.717081103COM140,347$5,043,000thousands by filing date
Qualcomm Incorporated747525103COM61,929$4,724,000thousands by filing date
FIRST AMERN FINL CORP31847R102COM79,379$4,684,000thousands by filing date
RAYMOND JAMES FINL INC COM754730109Stock51,126$4,216,000thousands by filing date
GARTNERINC366651107STOK26,449$3,782,000thousands by filing date
LIVE NATION ENTERTAINMENT INC COM538034109Stock47,350$3,141,000thousands by filing date
CELANESE CORP DEL COM150870103Stock21,530$2,633,000thousands by filing date
GROCERY OUTLET HLDG CORP COM39874R101Stock74,351$2,578,000thousands by filing date
MARTEN TRANSPORT LTD573075108COM98,166$2,040,000thousands by filing date
NEXSTAR MEDIA GROUP INC COMMON STOCK65336K103Stock19,220$1,966,000thousands by filing date
EAST WEST BANCORP INC COM27579R104Stock39,030$1,729,000thousands by filing date
AVNET INC COM053807103Stock36,930$1,643,000thousands by filing date
WASTE CONNECTIONS INC COM94106B101Stock12,126$1,116,000thousands by filing date
VALERO ENERGY CORP COM91913Y100Stock8,080$689,000thousands by filing date
CSX Corporation126408103COM9,530$660,000thousands by filing date
UnitedHealth Group Inc91324P102COM2,845$618,000thousands by filing date
UNIVAR INC91336L107COMMON STOCK27,650$574,000thousands by filing date
BIOGEN INC COM09062X103Stock2,414$562,000thousands by filing date
TANDEM DIABETES CARE INC875372203COM NEW8,454$499,000thousands by filing date
NIKE,Inc. Class B654106103COM5,039$473,000thousands by filing date
BOYDGAMINGCORP103304101STOK18,820$451,000thousands by filing date
CBOE GLOBAL MKTS INC COM12503M108Stock3,400$391,000thousands by filing date
NASDAQ INC COM631103108Stock3,850$382,000thousands by filing date
DUNKIN BRANDS GROUP INC265504100COM4,500$357,000thousands by filing date
VENTAS INC COM92276F100REIT4,442$324,000thousands by filing date
AXONICS INC05465P101COM10,900$293,000thousands by filing date
International Business Machines Corporation459200101COM2,000$291,000thousands by filing date
NXP SEMICONDUCTORS N V COMN6596X109Stock2,170$237,000thousands by filing date
QUOTIENT LTDG73268107SHS24,100$187,000thousands by filing date

Amendment chain

FilingRoleFiledAcceptedIngested
13F-HR 0001085146-19-002801this filing2019-11-08acceptance time not in the bulk data set