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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 2019-12-31, filed 2020-02-13, with 231 holding rows worth $14,042,622,000.

Accession
0001085146-20-000663
Filed
2020-02-13
Accepted by EDGAR
acceptance time not in the bulk data set
Ingested
Source
SEC quarterly data set

Original filing

13F report for Q4 2019

A holdings report, 231 entries on the cover page, a total value of $14,042,622,000 stated on the cover page (in dollars after the unit check, H1), rows summing to $14,042,622,000 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 Inc037833100COM1,402,494$411,842,000thousands by filing date
Alphabet Inc. Reg. Shares A02079K305COM260,977$349,550,000thousands by filing date
Amazon.com, Inc023135106COM171,997$317,823,000thousands by filing date
Microsoft Corp594918104COM1,964,186$309,752,000thousands by filing date
META PLATFORMS INC CL A30303M102COM1,292,534$265,293,000thousands by filing date
Visa Inc92826C839COM1,329,824$249,874,000thousands by filing date
TRANSDIGM GROUP INC COM893641100Stock434,524$243,333,000thousands by filing date
ServiceNow,Inc.81762P102COM792,976$223,873,000thousands by filing date
FIDELITY NATL INFORMATION SVCS COM31620M106Stock1,602,744$222,926,000thousands by filing date
TELEDYNE TECHNOLOGIES INC COM879360105Stock633,228$219,439,000thousands by filing date
SPLUNK INC848637104COM1,344,429$201,355,000thousands by filing date
Salesforce.com, Inc79466L302COM1,125,401$183,035,000thousands by filing date
INGERSOLL-RAND PLCG47791101SHS1,360,059$180,779,000thousands by filing date
METTLER TOLEDO INTERNATIONAL COM592688105Stock221,218$175,488,000thousands by filing date
ASCENDIS PHARMA A/S DKK 1.0 AD04351P101SPONSORED ADR1,260,756$175,396,000thousands by filing date
BIO RAD LABS INC090572207CL A460,629$170,447,000thousands by filing date
Home Depot, Inc437076102COM769,504$168,044,000thousands by filing date
AMETEK INC COM031100100Stock1,626,569$162,234,000thousands by filing date
MARATHON PETE CORP COM56585A102Stock2,669,780$160,854,000thousands by filing date
GLOBAL PMTS INC37940X102COM876,744$160,058,000thousands by filing date
Vertex Pharmaceuticals Incorporated92532F100COM717,668$157,133,000thousands by filing date
L3HARRIS TECHNOLOGIES INC COM502431109Stock754,494$149,292,000thousands by filing date
Thermo Fisher Scientific Inc.883556102COM457,299$148,563,000thousands by filing date
Applied Materials,Inc.038222105COM2,345,060$143,142,000thousands by filing date
S&P Global,Inc.78409V104COM494,162$134,931,000thousands by filing date
ELDORADO RESORTS INC28470R102COM2,249,305$134,149,000thousands by filing date
DEXCOM INC COM252131107Stock612,124$133,896,000thousands by filing date
CHARTER COMMUNICATIONS INC N16119P108COM265,860$128,963,000thousands by filing date
Boston Scientific Corporation101137107COM2,618,634$118,415,000thousands by filing date
ILLINOIS TOOL WKS INC452308109COM653,954$117,470,000thousands by filing date
ICON PUB LTD CO SHSG4705A100Stock679,761$117,075,000thousands by filing date
Caterpillar Inc.149123101COM788,043$116,378,000thousands by filing date
MEDICINES CO584688105COM1,368,720$116,259,000thousands by filing date
LPL FINL HLDGS INC COM50212V100Stock1,251,728$115,472,000thousands by filing date
TRANSUNION COM89400J107Stock1,346,729$115,293,000thousands by filing date
BLACKSTONE INC09260D107COM2,004,520$112,133,000thousands by filing date
FORTINET INC COM34959E109Stock1,049,021$111,993,000thousands by filing date
GALLAGHER ARTHUR J & CO COM363576109Stock1,174,661$111,863,000thousands by filing date
Broadcom Inc.11135F101COM352,348$111,349,000thousands by filing date
BROOKFIELD ASSET MANAGEMENT IN112585104CL A LTD VT SH1,871,919$108,197,000thousands by filing date
STERIS PLC SHS USDG8473T100Stock706,691$107,714,000thousands by filing date
Union Pacific Corporation907818108COM577,834$104,467,000thousands by filing date
NOVARTIS AG SPONSORED ADR66987V109ADR1,095,518$103,735,000thousands by filing date
HUNT J B TRANS SVCS INC COM445658107Stock887,374$103,628,000thousands by filing date
ALEXANDRIA REAL ESTATE EQ INC COM015271109REIT631,843$102,093,000thousands by filing date
Bristol-Myers Squibb Company110122108COM1,517,630$97,417,000thousands by filing date
NCR VOYIX CORPORATION62886E108COM2,753,407$96,810,000thousands by filing date
NICE LTD SPONSORED ADR653656108ADR589,500$91,461,000thousands by filing date
HILTON WORLDWIDE HLDGS INC COM43300A203Stock823,135$91,294,000thousands by filing date
CONSTELLATION BRANDS INC CL A21036P108Stock474,801$90,093,000thousands by filing date
T-Mobile US,Inc.872590104COM1,130,641$88,665,000thousands by filing date
TREX CO INC89531P105COM970,040$87,187,000thousands by filing date
IDEXX LABS INC COM45168D104Stock333,740$87,150,000thousands by filing date
CARTERS INC146229109COM791,046$86,493,000thousands by filing date
TOPBUILD COR COM89055F103Stock838,020$86,383,000thousands by filing date
PAYPALHLDGSINC70450Y103STOK797,570$86,273,000thousands by filing date
ZENDESK INC98936J101COM1,121,783$85,962,000thousands by filing date
NVIDIA Corp67066G104COM358,504$84,356,000thousands by filing date
MICROCHIP TECHNOLOGY INC. COM595017104Stock802,304$84,017,000thousands by filing date
Citigroup Inc.172967424COM1,016,443$81,204,000thousands by filing date
BRIXMOR PPTY GROUP INC11120U105COM3,629,476$78,433,000thousands by filing date
WILLIS TOWERS WATSON PLC LTD SHSG96629103Stock381,167$76,973,000thousands by filing date
PIONEER NATURAL RESOURCES CO723787107COM503,034$76,144,000thousands by filing date
FAIR ISAAC CORP COM303250104Stock203,190$76,131,000thousands by filing date
FIVE BELOW INC COM33829M101Stock588,394$75,232,000thousands by filing date
LINCOLN ELEC HLDGS INC533900106COM737,073$71,297,000thousands by filing date
RPM INTL INC COM749685103Stock923,552$70,892,000thousands by filing date
Walmart Inc.931142103COM590,522$70,178,000thousands by filing date
HAEMONETICS CORP MASS COM405024100Stock606,074$69,638,000thousands by filing date
MASIMO CORP COM574795100Stock435,825$68,886,000thousands by filing date
WEX INC96208T104COM322,564$67,564,000thousands by filing date
ULTA BEAUTY INC COM90384S303Stock263,758$66,768,000thousands by filing date
PBF ENERGY INC69318G106CL A2,125,061$66,663,000thousands by filing date
OPTIMUM COMMUNICATIONS INC02156K103CL A2,409,869$65,886,000thousands by filing date
FLOWSERVE CORP34354P105COM1,310,200$65,209,000thousands by filing date
COGNIZANT TECHNOLOGY SOLUTIONS CL A192446102Stock1,037,911$64,371,000thousands by filing date
PALO ALTO NETWORKS INC697435105COM277,254$64,115,000thousands by filing date
THE COOPER COMPANIES216648402COM NEW199,337$64,045,000thousands by filing date
FISERV INC337738108COM542,690$62,751,000thousands by filing date
MADISON SQUARE GRDN SPRT CORP CL A55825T103Stock212,982$62,657,000thousands by filing date
BLUEPRINT MEDICINES CORP09627Y109COM770,636$61,736,000thousands by filing date
ACCELERON PHARMA INC00434H108COM1,150,819$61,016,000thousands by filing date
SIGNATURE BANK82669G104COM444,486$60,721,000thousands by filing date
WORKDAY INC CL A98138H101Stock368,268$60,562,000thousands by filing date
TIMKEN CO887389104COM1,063,771$59,901,000thousands by filing date
WOODWARD INC COM980745103Stock503,887$59,680,000thousands by filing date
ROSS STORES INC COM778296103Stock511,233$59,518,000thousands by filing date
Walt Disney Co254687106COM409,045$59,160,000thousands by filing date
WNS HOLDINGS LTD92932M101SPON ADR884,831$58,532,000thousands by filing date
CATALENT INC USD 0.01148806102COM1,038,521$58,469,000thousands by filing date
QUEST DIAGNOSTICS INC COM74834L100Stock528,429$56,431,000thousands by filing date
TAKE-TWO INTERACTIVE SOFTWARE COM874054109Stock460,331$56,358,000thousands by filing date
8X8 INC282914100COMMON STOCK3,070,399$56,188,000thousands by filing date
IAC INTERACTIVECORP44919P508COM224,453$55,913,000thousands by filing date
ESSENT GROUP LTD COMG3198U102Stock1,051,190$54,651,000thousands by filing date
SBA COMMUNICATIONS CORP CL A78410G104REIT226,153$54,501,000thousands by filing date
IHS MARKIT LTDG47567105SHS717,231$54,043,000thousands by filing date
PAPA JOHNS INTL INC698813102COM838,896$52,976,000thousands by filing date
EOG RES INC COM26875P101Stock630,630$52,822,000thousands by filing date
TWILIO INC CL A90138F102Stock512,543$50,373,000thousands by filing date
WPX ENERGY INC98212B103COM3,639,744$50,010,000thousands by filing date
TRADEWEB MKTS INC CL A892672106Stock1,078,245$49,977,000thousands by filing date
V F CORP COM918204108Stock497,883$49,619,000thousands by filing date
HUBSPOTINC443573100STOK311,627$49,393,000thousands by filing date
FLEETCOR TECHNOLOGIES INC339041105COM170,664$49,103,000thousands by filing date
XILINX INC983919101COM483,847$47,306,000thousands by filing date
SS&C TECH HLDGS COM78467J100Stock758,140$46,550,000thousands by filing date
MSCI INC COM55354G100Stock175,036$45,191,000thousands by filing date
BLACK KNIGHT INC COM09215C105Stock697,104$44,949,000thousands by filing date
ON SEMICONDUCTOR CORP COM682189105Stock1,794,694$43,755,000thousands by filing date
BIOMARIN PHARMACEUTICAL INC09061G101COM517,450$43,750,000thousands by filing date
RUSH ENTERPRISES INC CL A781846209Stock939,378$43,681,000thousands by filing date
YUM CHINA HLDGS INC98850P109COM903,415$43,373,000thousands by filing date
ORION S.A.L72967109COM2,207,849$42,611,000thousands by filing date
SAREPTA THERAPEUTICS INC803607100COM326,278$42,103,000thousands by filing date
KBHOME48666K109COM1,211,291$41,511,000thousands by filing date
DIAMONDBACK ENERGY INC COM25278X109Stock445,505$41,370,000thousands by filing date
ROCKWELL AUTOMATION INC COM773903109Stock203,208$41,184,000thousands by filing date
MIMECAST LIMITEDG14838109ORD SHS948,357$41,140,000thousands by filing date
REALPAGE INC75606N109COM762,333$40,975,000thousands by filing date
PROOFPOINT INC743424103COM347,202$39,852,000thousands by filing date
LUMENTUM HLDGS INC COM55024U109Stock500,205$39,666,000thousands by filing date
CERIDIAN HCM HLDG INC15677J108COM546,889$37,123,000thousands by filing date
BURLINGTON STORES INC COM122017106Stock159,516$36,374,000thousands by filing date
EXPEDIA GROUP INC COM NEW30212P303Stock330,597$35,751,000thousands by filing date
GUIDEWIRE SOFTWARE INC COM40171V100Stock321,479$35,289,000thousands by filing date
PERFORMANCE FOOD GROUP CO COM71377A103Stock676,716$34,837,000thousands by filing date
MERITOR INC59001K100COMMON STOCK1,329,241$34,813,000thousands by filing date
CHARLES RIV LABS INTL INC159864107COM226,656$34,624,000thousands by filing date
BERRY GLOBAL GROUP INC08579W103COM713,570$33,887,000thousands by filing date
PACIRA BIOSCIENCES INC COM695127100Stock741,389$33,585,000thousands by filing date
NEXSTAR MEDIA GROUP INC COMMON STOCK65336K103Stock278,963$32,708,000thousands by filing date
IRONWOOD PHARMACEUTICALS INC46333X108COMMON STOCK2,437,096$32,438,000thousands by filing date
GRACE W R & CO DEL NEW COM38388F108Stock458,111$31,999,000thousands by filing date
D R HORTON INC COM23331A109Stock574,452$30,302,000thousands by filing date
COSTAR GROUP INC COM22160N109Stock50,096$29,972,000thousands by filing date
ALNYLAM PHARMACEUTICALS INC COM02043Q107Stock249,009$28,678,000thousands by filing date
INTERSECT ENT INC46071F103COM1,127,665$28,079,000thousands by filing date
REATA PHARMACEUTICALS INC75615P103CL A136,365$27,877,000thousands by filing date
ZYNGA INC.98986T108CL A4,429,428$27,108,000thousands by filing date
EAST WEST BANCORP INC COM27579R104Stock542,970$26,443,000thousands by filing date
NUANCE COMMUNICATIONS INC67020Y100COM1,439,418$25,665,000thousands by filing date
MSA SAFETY INC COM553498106Stock195,392$24,690,000thousands by filing date
KNOWLES CORP COM49926D109Stock1,150,977$24,343,000thousands by filing date
Apollo Global Management Inc03768E105COM CL A509,116$24,290,000thousands by filing date
FMC CORP COM NEW302491303Stock241,106$24,067,000thousands by filing date
TELADOC HEALTH INC87918A105COM286,581$23,993,000thousands by filing date
KEYCORP COM493267108Stock1,177,709$23,837,000thousands by filing date
CYRUSONE INC23283R100COM362,605$23,725,000thousands by filing date
WESTERN ALLIANCE BANCORP COM957638109Stock413,623$23,577,000thousands by filing date
MKS INC. COM55306N104Stock211,735$23,293,000thousands by filing date
LULULEMON ATHLETICA INC550021109COM100,290$23,234,000thousands by filing date
INTEGRA LIFESCIENCES HLDGS C457985208COM NEW391,899$22,840,000thousands by filing date
VIAVI SOLUTIONS INC925550105COM1,508,871$22,633,000thousands by filing date
CABOT MICROELECTRONICS CORP12709P103COM155,997$22,513,000thousands by filing date
BRIGHT HORIZONS FAM SOL IN DEL COM109194100Stock149,664$22,493,000thousands by filing date
HAMILTON LANE INC407497106CL A370,743$22,096,000thousands by filing date
OLD DOMINION FREIGHT LINE INC COM679580100Stock115,040$21,832,000thousands by filing date
ADVANCED ENERGY INDS COM007973100Stock293,223$20,877,000thousands by filing date
REPLIGEN CORP COM759916109Stock224,884$20,802,000thousands by filing date
ROGERS CORP COM775133101Stock166,349$20,749,000thousands by filing date
RYDER SYS INC COM783549108Stock366,257$19,891,000thousands by filing date
BOTTOMLINE TECH INC DEL101388106COM362,940$19,454,000thousands by filing date
ACI WORLDWIDE INC COM004498101Stock511,192$19,367,000thousands by filing date
FIRST HAWAIIAN INC32051X108COM668,206$19,278,000thousands by filing date
NMI HLDGS INC629209305COM562,139$18,652,000thousands by filing date
SITIME CORP COM82982T106Stock728,497$18,577,000thousands by filing date
PALOMAR HLDGS INC COM69753M105Stock367,373$18,549,000thousands by filing date
ROCKET PHARMACEUTICALS INC77313F106COM797,596$18,153,000thousands by filing date
INSPERITY INC45778Q107COM210,376$18,101,000thousands by filing date
PAYLOCITY HLDG CORP COM70438V106Stock149,081$18,012,000thousands by filing date
SAGE THERAPEUTICS INC78667J108COM247,209$17,846,000thousands by filing date
SPIRIT RLTY CAP INC NEW NPV84860W300COM NEW359,638$17,687,000thousands by filing date
WORLD WRESTLING ENTMT INC98156Q108CL A230,065$14,924,000thousands by filing date
FIRSTCASH HOLDINGS INC.33767D105Common Stock179,236$14,452,000thousands by filing date
DOLLAR TREE INC COM256746108Stock148,303$13,948,000thousands by filing date
MOMENTA PHARMACEUTICALS INC60877T100COM703,653$13,883,000thousands by filing date
FATE THERAPEUTICS INC31189P102COM704,843$13,794,000thousands by filing date
JPMorgan Chase & Co46625H100COM97,380$13,575,000thousands by filing date
GROCERY OUTLET HLDG CORP COM39874R101Stock414,960$13,465,000thousands by filing date
AVERY DENNISON CORP COM053611109Stock96,905$12,677,000thousands by filing date
APELLIS PHARMACEUTICALS INC03753U106COM395,490$12,110,000thousands by filing date
Abbott Laboratories002824100COM129,988$11,291,000thousands by filing date
REPAY HLDGS CORP76029L100COM CL A749,283$10,977,000thousands by filing date
FIRSTSERVICE CORP NEW COM33767E202Stock113,195$10,532,000thousands by filing date
ORCHARD THERAPEUTICS PLC68570P101ADR761,947$10,477,000thousands by filing date
MATSON INC COM57686G105Stock245,717$10,025,000thousands by filing date
Texas Instruments Incorporated882508104COM71,555$9,180,000thousands by filing date
Merck & Co.,Inc.58933Y105COM96,954$8,818,000thousands by filing date
TARGET CORP COM87612E106Stock66,945$8,583,000thousands by filing date
Coca-Cola Company191216100COM148,980$8,246,000thousands by filing date
Verizon Communications Inc92343V104COM132,755$8,151,000thousands by filing date
VAIL RESORTS INC COM91879Q109Stock33,580$8,053,000thousands by filing date
CVS Health Corporation126650100COM107,550$7,990,000thousands by filing date
NextEra Energy,Inc.65339F101COM30,105$7,290,000thousands by filing date
ARCHER DANIELS MIDLAND CO COM039483102Stock150,730$6,986,000thousands by filing date
HENRY JACK & ASSOC INC426281101COM46,989$6,845,000thousands by filing date
FIFTH THIRD BANCORP COM316773100Stock211,095$6,489,000thousands by filing date
Progressive Corporation743315103COM85,706$6,204,000thousands by filing date
Alphabet Inc. Reg. Shares C02079K107COM4,141$5,537,000thousands by filing date
Pfizer Inc.717081103COM139,890$5,481,000thousands by filing date
Qualcomm Incorporated747525103COM61,750$5,448,000thousands by filing date
TAIWAN SEMICONDUCTOR MFG874039100SPONSORED ADS92,190$5,356,000thousands by filing date
Starbucks Corporation855244109COM60,265$5,298,000thousands by filing date
Danaher Corporation235851102COM32,737$5,024,000thousands by filing date
FIRST AMERN FINL CORP31847R102COM79,140$4,615,000thousands by filing date
CME Group Inc. Class A12572Q105COM22,599$4,536,000thousands by filing date
RAYMOND JAMES FINL INC COM754730109Stock50,166$4,488,000thousands by filing date
LIVE NATION ENTERTAINMENT INC COM538034109Stock47,350$3,384,000thousands by filing date
INTERXION HOLDING N.VN47279109SHS35,812$3,001,000thousands by filing date
CELANESE CORP DEL COM150870103Stock21,530$2,651,000thousands by filing date
GARTNERINC366651107STOK14,370$2,214,000thousands by filing date
MARTEN TRANSPORT LTD573075108COM98,166$2,110,000thousands by filing date
STRATEGIC ED INC COM86272C103Stock12,260$1,948,000thousands by filing date
HEICO CORP NEW422806208CL A20,362$1,823,000thousands by filing date
ISHARES TR464287648RUS 2000 GRW ETF6,015$1,289,000thousands by filing date
WASTE CONNECTIONS INC COM94106B101Stock12,126$1,101,000thousands by filing date
ISHARESRUSSELL1000GROWTHETF464287614STOK6,041$1,063,000thousands by filing date
VALERO ENERGY CORP COM91913Y100Stock8,080$757,000thousands by filing date
CSX Corporation126408103COM9,530$690,000thousands by filing date
ISHARES CORE S&P U.S. GROWTH ETF464287671ETF10,003$677,000thousands by filing date
NIKE,Inc. Class B654106103COM5,080$515,000thousands by filing date
MOLECULAR TEMPLATES INC608550109COM36,420$509,000thousands by filing date
TANDEM DIABETES CARE INC875372203COM NEW8,520$508,000thousands by filing date
ANAPLAN INC03272L108COM8,390$440,000thousands by filing date
ISHARES RUSSELL MID-CAP GROWTH ETF464287481ETF2,780$424,000thousands by filing date
INGEVITY CORP COM45688C107Stock4,400$384,000thousands by filing date
GREENLIGHT CAPITAL RE LTD AG4095J109COMMON STOCK35,870$363,000thousands by filing date
NXP SEMICONDUCTORS N V COMN6596X109Stock2,200$280,000thousands by filing date
International Business Machines Corporation459200101COM2,000$268,000thousands by filing date
VENTAS INC COM92276F100REIT4,442$256,000thousands by filing date

Amendment chain

FilingRoleFiledAcceptedIngested
13F-HR 0001085146-20-000663this filing2020-02-13acceptance time not in the bulk data set