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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 2016-03-31, filed 2016-05-13, with 252 holding rows worth $13,142,263,000.

Accession
0001085146-16-003726
Filed
2016-05-13
Accepted by EDGAR
acceptance time not in the bulk data set
Ingested
Source
SEC quarterly data set

Original filing

13F report for Q1 2016

A holdings report, 252 entries on the cover page, a total value of $13,142,263,000 stated on the cover page (in dollars after the unit check, H1), rows summing to $13,142,263,000 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 Inc037833100COM3,456,335$376,706,000thousands by filing date
JAZZ PHARMACEUTICALS PLC SHS USDG50871105Stock2,039,289$266,229,000thousands by filing date
UNITED AIRLS HLDGS INC COM910047109Stock3,884,438$232,522,000thousands by filing date
META PLATFORMS INC CL A30303M102COM1,923,963$219,524,000thousands by filing date
STERIS PLCG84720104SHS USD2,970,499$211,054,000thousands by filing date
CONSTELLATION BRANDS INC CL A21036P108Stock1,394,473$210,691,000thousands by filing date
PALO ALTO NETWORKS INC697435105COM1,278,956$208,649,000thousands by filing date
Alphabet Inc. Reg. Shares A02079K305COM270,210$206,143,000thousands by filing date
Alphabet Inc. Reg. Shares C02079K107COM270,669$201,635,000thousands by filing date
Bristol-Myers Squibb Company110122108COM3,120,695$199,350,000thousands by filing date
Microsoft Corp594918104COM3,500,217$193,317,000thousands by filing date
CHARTER COMMUNICATION - A16117M305COM951,483$192,609,000thousands by filing date
CELGENE CORP151020104COM1,883,835$188,553,000thousands by filing date
Visa Inc92826C839COM2,399,575$183,519,000thousands by filing date
Dow Chemical Company260543103COM3,589,378$182,556,000thousands by filing date
DOLLAR TREE INC COM256746108Stock2,029,197$167,328,000thousands by filing date
Home Depot, Inc437076102COM1,135,960$151,571,000thousands by filing date
TJX Companies Inc872540109COM1,920,137$150,443,000thousands by filing date
Salesforce.com, Inc79466L302COM2,034,172$150,183,000thousands by filing date
ServiceNow,Inc.81762P102COM2,432,535$148,822,000thousands by filing date
NEWELL BRANDS INC COM651229106Stock3,270,648$144,857,000thousands by filing date
NIELSEN HOLDINGS PLCG6518L108SHS EUR2,727,975$143,655,000thousands by filing date
TWENTY FIRST CENTY FOX INC90130A101CL A5,140,489$143,317,000thousands by filing date
TEVA PHARMACEUTICAL INDS LTD SPONSORED ADS881624209ADR2,660,541$142,366,000thousands by filing date
Lockheed Martin Corporation539830109COM632,910$140,190,000thousands by filing date
Union Pacific Corporation907818108COM1,672,779$133,070,000thousands by filing date
KROGER CO COM501044101Stock3,463,494$132,479,000thousands by filing date
LAM RESEARCH CORP512807108COM1,570,509$129,724,000thousands by filing date
BAXTER INTL INC071813109COM3,147,015$129,279,000thousands by filing date
COCA COLA ENTERPRISES INC NE19122T109COM2,468,165$125,235,000thousands by filing date
BROADCOM LTDY09827109SHS809,403$125,053,000thousands by filing date
Amazon.com, Inc023135106COM209,050$124,100,000thousands by filing date
CELANESE CORP DEL COM150870103Stock1,893,435$124,020,000thousands by filing date
Costco Wholesale Corporation22160K105COM771,845$121,627,000thousands by filing date
MasterCard, Inc57636Q104COM1,274,944$120,482,000thousands by filing date
SYNCHRONYFINL87165B103STOK4,174,392$119,638,000thousands by filing date
THE COOPER COMPANIES216648402COM NEW736,645$113,421,000thousands by filing date
VALERO ENERGY CORP COM91913Y100Stock1,745,697$111,969,000thousands by filing date
JARDEN CORP471109108COM1,878,843$110,758,000thousands by filing date
Starbucks Corporation855244109COM1,813,676$108,276,000thousands by filing date
LENNOX INTL INC COM526107107Stock779,973$105,445,000thousands by filing date
PRICELINE GRP INC741503403COM NEW81,218$104,687,000thousands by filing date
TRANSDIGM GROUP INC COM893641100Stock449,767$99,102,000thousands by filing date
United Parcel Service,Inc. Class B911312106COM925,472$97,610,000thousands by filing date
BIOGEN INC COM09062X103Stock372,468$96,961,000thousands by filing date
VAIL RESORTS INC COM91879Q109Stock715,136$95,614,000thousands by filing date
Thermo Fisher Scientific Inc.883556102COM662,396$93,789,000thousands by filing date
EQUINIX INC COM29444U700REIT271,746$89,869,000thousands by filing date
METTLER TOLEDO INTERNATIONAL COM592688105Stock255,614$88,125,000thousands by filing date
COSTAR GROUP INC COM22160N109Stock439,420$82,686,000thousands by filing date
Danaher Corporation235851102COM858,341$81,422,000thousands by filing date
ARAMARK COM03852U106Stock2,383,320$78,936,000thousands by filing date
ICON PUB LTD CO SHSG4705A100Stock1,037,225$77,896,000thousands by filing date
COGNIZANT TECHNOLOGY SOLUTIONS CL A192446102Stock1,242,160$77,883,000thousands by filing date
DENTSPLY SIRONA INC24906P109COM1,263,530$77,871,000thousands by filing date
ASSURANT INC COM04621X108Stock987,652$76,197,000thousands by filing date
ALIGN TECHNOLOGY INC COM016255101Stock1,022,993$74,361,000thousands by filing date
IHS INC451734107CL A598,606$74,323,000thousands by filing date
Charles Schwab Corp808513105COM2,637,965$73,916,000thousands by filing date
BANKUNITED INC06652K103COM2,112,665$72,760,000thousands by filing date
ARIAD PHARMACEUTICALS INC04033A100COM11,104,978$70,961,000thousands by filing date
Citigroup Inc.172967424COM1,698,383$70,907,000thousands by filing date
MSCI INC COM55354G100Stock938,239$69,505,000thousands by filing date
MERRIMACK PHARMACEUTICALS IN590328100COM8,127,022$68,023,000thousands by filing date
AFFILIATED MANAGERS GROUP COM008252108Stock418,483$67,962,000thousands by filing date
FORTINET INC COM34959E109Stock2,194,762$67,226,000thousands by filing date
MIDDLEBYCORP596278101STOK609,592$65,086,000thousands by filing date
SPLUNK INC848637104COM1,320,672$64,620,000thousands by filing date
QUEST DIAGNOSTICS INC COM74834L100Stock872,599$62,347,000thousands by filing date
TESORO CORP881609101COM710,220$61,086,000thousands by filing date
EAST WEST BANCORP INC COM27579R104Stock1,874,216$60,875,000thousands by filing date
VULCAN MATLS CO COM929160109Stock575,211$60,725,000thousands by filing date
SIX FLAGS ENTERTAINMENT CORP83001A102COM1,091,963$60,593,000thousands by filing date
RED HAT INC756577102COM810,849$60,416,000thousands by filing date
NEXSTAR MEDIA GROUP INC COMMON STOCK65336K103Stock1,323,673$58,599,000thousands by filing date
IMPERVA INC45321L100COM1,115,883$56,352,000thousands by filing date
MANPOWERGROUP INC WIS COM56418H100Stock690,389$56,211,000thousands by filing date
ULTA BEAUTY INC COM90384S303Stock287,868$55,772,000thousands by filing date
GRACE W R & CO DEL NEW COM38388F108Stock780,833$55,580,000thousands by filing date
VANTIV INC92210H105CL A1,020,849$55,003,000thousands by filing date
EASTMAN CHEM CO COM277432100Stock760,083$54,901,000thousands by filing date
ZEBRA TECHNOLOGIES CORPORATION CL A989207105Stock771,253$53,216,000thousands by filing date
CBRE GROUP INC CL A12504L109Stock1,842,423$53,099,000thousands by filing date
BREAD FINANCIAL HOLDINGS INC018581108COM238,937$52,566,000thousands by filing date
NEUROCRINE BIOSCIENCES INC64125C109COM1,318,500$52,147,000thousands by filing date
LIBERTY INTERACTIVE CORP53071M104INT COM SER A2,057,946$51,963,000thousands by filing date
SABRE CORP COM78573M104Stock1,707,335$49,376,000thousands by filing date
LULULEMON ATHLETICA INC550021109COM718,221$48,631,000thousands by filing date
SNAP ON INC COM833034101Stock307,081$48,209,000thousands by filing date
BORGWARNER INC COM099724106Stock1,240,913$47,651,000thousands by filing date
TEAM HEALTH HOLDINGS INC87817A107COMMON STOCK1,123,898$46,990,000thousands by filing date
POLYONE CORP73179P106COM1,535,717$46,455,000thousands by filing date
QLIK TECHNOLOGIES INC74733T105COM1,600,116$46,275,000thousands by filing date
SCOTTS MIRACLE-GRO CO810186106CL A631,697$45,969,000thousands by filing date
TOTAL SYS SVCS INC891906109COM959,281$45,643,000thousands by filing date
WRIGHT MED GROUP N VN96617118ORD SHS2,641,419$43,848,000thousands by filing date
SONIC CORP835451105COM1,219,018$42,861,000thousands by filing date
BRIGHT HORIZONS FAM SOL IN DEL COM109194100Stock642,895$41,647,000thousands by filing date
TELEFLEX INCORPORATED879369106COM263,475$41,368,000thousands by filing date
ALLEGIANT TRAVEL CO01748X102COM232,034$41,316,000thousands by filing date
SCRIPPS NETWORKS INTERACT IN811065101CL A COM628,335$41,156,000thousands by filing date
FORTUNE BRANDS INNOVATIONS INC COM34964C106Stock729,503$40,881,000thousands by filing date
HD SUPPLY HLDGS INC40416M105COM1,231,747$40,734,000thousands by filing date
WATSCO INC COM942622200Stock299,903$40,409,000thousands by filing date
CROWN CASTLE INC COM22822V101REIT466,097$40,317,000thousands by filing date
ON SEMICONDUCTOR CORP COM682189105Stock4,181,285$40,099,000thousands by filing date
THE ULTIMATE SOFTWARE GROUP IN90385D107COM205,409$39,747,000thousands by filing date
INTEGRA LIFESCIENCES HLDGS C457985208COM NEW570,355$38,419,000thousands by filing date
BRUNSWICK CORP117043109COM794,691$38,129,000thousands by filing date
ARRIS INTL INC SHSG0551A103SHS1,652,892$37,884,000thousands by filing date
BROADSOFT INC11133B409COM922,524$37,224,000thousands by filing date
DOLLAR GEN CORP COM256677105Stock433,205$37,082,000thousands by filing date
BAKER HUGHES INC057224107COM838,486$36,751,000thousands by filing date
PACIRA BIOSCIENCES INC COM695127100Stock693,054$36,718,000thousands by filing date
KNOLL INC498904200COM NEW1,675,293$36,270,000thousands by filing date
CHEMTURA CORP163893209COM NEW1,359,455$35,890,000thousands by filing date
RAYMOND JAMES FINL INC COM754730109Stock737,354$35,105,000thousands by filing date
ELECTRONICS FOR IMAGING INC286082102COM826,310$35,027,000thousands by filing date
SMITH A O CORP COM831865209Stock458,390$34,980,000thousands by filing date
MASIMO CORP COM574795100Stock828,904$34,681,000thousands by filing date
MACQUARIE INFRASTRUCTURE HOLDI55608B105COMMON UNITS512,605$34,570,000thousands by filing date
INTERXION HOLDING N.VN47279109SHS980,920$33,920,000thousands by filing date
ZOETIS INC CL A98978V103Stock764,321$33,882,000thousands by filing date
KELLANOVA487836108COM442,585$33,880,000thousands by filing date
BUILDERS FIRSTSOURCE INC COM12008R107Stock3,002,381$33,837,000thousands by filing date
MEDIVATION INC58501N101COM730,823$33,603,000thousands by filing date
SIGNET JEWELERS LTD SHSG81276100Stock266,681$33,076,000thousands by filing date
MICROSEMI CORP595137100COM847,307$32,460,000thousands by filing date
ROBERT HALF INC. COM770323103Stock691,902$32,229,000thousands by filing date
STARWOOD PPTY TR INC COM85571B105REIT1,702,551$32,229,000thousands by filing date
MATSON INC COM57686G105Stock796,329$31,989,000thousands by filing date
FIRST REPUBLIC BANK/SAN FRANCI33616C100COM478,552$31,891,000thousands by filing date
CIENA CORP COM NEW171779309Stock1,674,520$31,849,000thousands by filing date
VERIFONE SYS INC92342Y109COM1,127,352$31,836,000thousands by filing date
JACK IN THE BOX INC466367109COM496,733$31,726,000thousands by filing date
STEELCASE INC-CLASS A858155203CL A2,092,087$31,214,000thousands by filing date
INTERPUBLIC GROUP COS460690100COM1,292,392$29,660,000thousands by filing date
VEEVA SYS INC CL A COM922475108Stock1,159,630$29,037,000thousands by filing date
NAVIGATOR HLDGS LTD SHSY62132108Stock1,794,667$28,984,000thousands by filing date
AGILENT TECHNOLOGIES INC COM00846U101Stock724,374$28,866,000thousands by filing date
INSTALLED BLDG PRODS INC45780R101COM1,084,587$28,861,000thousands by filing date
JBT MAREL CORPORATION477839104COM511,070$28,829,000thousands by filing date
SKYWORKS SOLUTIONS INC COM83088M102Stock369,103$28,753,000thousands by filing date
EXPEDIA GROUP INC COM NEW30212P303Stock266,211$28,703,000thousands by filing date
HURON CONSULTING GROUP INC447462102COM488,669$28,436,000thousands by filing date
MADISON SQUARE GRDN SPRT CORP CL A55825T103Stock170,750$28,406,000thousands by filing date
NICE LTD SPONSORED ADR653656108ADR420,058$27,216,000thousands by filing date
BERRY GLOBAL GROUP INC08579W103COM751,510$27,167,000thousands by filing date
JONES LANG LASALLE INC COM48020Q107Stock231,381$27,146,000thousands by filing date
HEARTLAND PMT SYS INC42235N108COM271,917$26,259,000thousands by filing date
HEXCEL CORP NEW428291108COM561,661$24,550,000thousands by filing date
OIL STS INTL INC678026105COM764,275$24,090,000thousands by filing date
HUNT J B TRANS SVCS INC COM445658107Stock270,392$22,778,000thousands by filing date
NORD ANGLIA EDUCATION INCG6583A102SHS1,085,885$22,684,000thousands by filing date
SPIRIT AIRLS INC848577102COM472,585$22,675,000thousands by filing date
QORVO INC COM74736K101Stock447,320$22,549,000thousands by filing date
COMMSCOPE HLDG CO INC20337X109COM802,162$22,396,000thousands by filing date
RESTORATION HARDWARE HLDGS I761283100COM533,713$22,363,000thousands by filing date
OLD DOMINION FREIGHT LINE INC COM679580100Stock319,850$22,268,000thousands by filing date
RUSH ENTERPRISES INC CL A781846209Stock1,206,534$22,007,000thousands by filing date
MONOLITHIC PWR SYS INC COM609839105Stock338,617$21,550,000thousands by filing date
NXP SEMICONDUCTORS N V COMN6596X109Stock261,352$21,188,000thousands by filing date
ZENDESK INC98936J101COM1,008,655$21,111,000thousands by filing date
STARZ85571Q102COM SER A797,185$20,990,000thousands by filing date
GENPACT LIMITED SHSG3922B107Stock760,600$20,681,000thousands by filing date
PROOFPOINT INC743424103COM381,164$20,499,000thousands by filing date
CEB INC125134106COM310,172$20,077,000thousands by filing date
COMMVAULT SYS INC COM204166102Stock455,652$19,670,000thousands by filing date
DIGITAL RLTY TR INC COM253868103REIT219,990$19,467,000thousands by filing date
CHIPOTLEMEXICANGRILLI169656105STOK39,271$18,495,000thousands by filing date
BGC PARTNERS INC05541T101CL A2,012,015$18,209,000thousands by filing date
LITHIA MTRS INC COM536797103Stock199,908$17,458,000thousands by filing date
DAVE & BUSTERS ENTMT INC238337109COM449,400$17,428,000thousands by filing date
WESTERN REFNG INC959319104COM591,960$17,220,000thousands by filing date
CIRRUS LOGIC INC COM172755100Stock469,383$17,090,000thousands by filing date
TEXAS ROADHOUSE INC COM882681109Stock383,505$16,713,000thousands by filing date
BRUKER CORP116794108COM590,627$16,538,000thousands by filing date
CARDIOME PHARMA CORP14159U301COM NO PAR3,968,245$16,230,000thousands by filing date
FLOWSERVE CORP34354P105COM356,215$15,820,000thousands by filing date
Comcast Corp20030N101COM255,270$15,592,000thousands by filing date
CULLEN FROST BANKERS INC COM229899109Stock281,631$15,521,000thousands by filing date
KIRBY CORP497266106COM253,595$15,289,000thousands by filing date
ENDO INTL PLCG30401106SHS528,137$14,867,000thousands by filing date
AMERICAN WOODMARK CORP030506109COM195,608$14,590,000thousands by filing date
CNO FINL GROUP INC12621E103COM814,011$14,587,000thousands by filing date
MICHAEL KORS HLDGS LTDG60754101SHS247,895$14,120,000thousands by filing date
ADTRAN INC00738A106COMMON STOCK677,910$13,707,000thousands by filing date
MARKETAXESS HLDGS INC57060D108COM109,075$13,616,000thousands by filing date
NATIONAL HEALTH INVS INC COM63633D104REIT199,647$13,281,000thousands by filing date
FOUR CORNERS PPTY TR INC35086T109COM667,850$11,988,000thousands by filing date
DEXCOM INC COM252131107Stock169,218$11,492,000thousands by filing date
AMAG PHARMACEUTICALS INC00163U106COM489,105$11,445,000thousands by filing date
MASTEC INC COM576323109Stock541,890$10,968,000thousands by filing date
ALKERMES PLCG01767105SHS304,638$10,416,000thousands by filing date
RAPID7 INC COM753422104Stock759,543$9,927,000thousands by filing date
Tandem Diabetes Care, Inc.875372104COM911,166$7,936,000thousands by filing date
HENRY JACK & ASSOC INC426281101COM92,484$7,821,000thousands by filing date
Cisco Systems,Inc.17275R102COM273,895$7,798,000thousands by filing date
AT&T Inc00206R102COM183,570$7,190,000thousands by filing date
PAYCHEX INC704326107COM128,669$6,949,000thousands by filing date
GENERAL ELEC CO369604103COM217,492$6,914,000thousands by filing date
CLOVIS ONCOLOGY INC189464100COM347,660$6,675,000thousands by filing date
Johnson & Johnson478160104COM58,495$6,329,000thousands by filing date
FLOWERS FOODS INC COM343498101Stock335,823$6,199,000thousands by filing date
Procter & Gamble Co742718109COM73,490$6,049,000thousands by filing date
GIGAMON INC37518B102COM192,441$5,970,000thousands by filing date
KIMBERLY-CLARK CORP COM494368103Stock42,897$5,770,000thousands by filing date
Coca-Cola Company191216100COM123,940$5,750,000thousands by filing date
DR PEPPER SNAPPLE GROUP INC26138E109COM63,279$5,658,000thousands by filing date
PepsiCo,Inc.713448108COM52,744$5,405,000thousands by filing date
Pfizer Inc.717081103COM170,676$5,059,000thousands by filing date
TARGET CORP COM87612E106Stock57,962$4,769,000thousands by filing date
ARCHER DANIELS MIDLAND CO COM039483102Stock123,200$4,473,000thousands by filing date
Verizon Communications Inc92343V104COM80,955$4,378,000thousands by filing date
ISHARES TR464287648RUS 2000 GRW ETF30,190$4,003,000thousands by filing date
ECOLAB INC COM278865100Stock35,540$3,963,000thousands by filing date
OLIN CORP680665205COM PAR $1205,272$3,566,000thousands by filing date
MUELLER WTR PRODS INC COM SER A624758108Stock282,900$2,795,000thousands by filing date
Boeing Company097023105COM21,670$2,751,000thousands by filing date
3M CO COM88579Y101Stock15,129$2,521,000thousands by filing date
ALLERGAN PLCG0177J108SHS9,369$2,511,000thousands by filing date
COPART INC COM217204106Stock51,815$2,112,000thousands by filing date
CVS Health Corporation126650100COM19,800$2,054,000thousands by filing date
PROTHENA CORP PLC SHSG72800108Stock45,830$1,886,000thousands by filing date
Walt Disney Co254687106COM15,701$1,559,000thousands by filing date
WABCO HLDGS INC92927K102COM12,950$1,385,000thousands by filing date
WILLIAMS SONOMA INC COM969904101Stock23,125$1,266,000thousands by filing date
EXXON MOBIL CORP30231G102COM14,526$1,214,000thousands by filing date
Merck & Co.,Inc.58933Y105COM19,659$1,040,000thousands by filing date
Waste Connections941053100COM14,625$945,000thousands by filing date
NORTHERN TR CORP COM665859104Stock12,096$788,000thousands by filing date
SPDR SERIES TRUST78464A698ST STR SP REGBNK20,050$755,000thousands by filing date
Schlumberger Limited806857108COM8,424$621,000thousands by filing date
BIOTELEMETRY INC090672106COM50,100$585,000thousands by filing date
LINDBLAD EXPEDITIONS HLDGS I535219109COM50,800$505,000thousands by filing date
IDEXX LABS INC COM45168D104Stock6,400$501,000thousands by filing date
AIR PRODS & CHEMS INC009158106COM3,320$478,000thousands by filing date
Medtronic PlcG5960L103COM6,178$463,000thousands by filing date
CABOT CORP127055101COM8,450$408,000thousands by filing date
THE CAMPBELLS COMPANY COM134429109Stock6,000$383,000thousands by filing date
ACADIA PHARMACEUTICALS INC004225108COM13,450$376,000thousands by filing date
SouthState Corp840441109Common Stock5,700$366,000thousands by filing date
International Business Machines Corporation459200101COM2,300$348,000thousands by filing date
Chubb LimitedH1467J104COM2,829$337,000thousands by filing date
ARALEZ PHARMACEUTICALS INC03852X100COM89,000$316,000thousands by filing date
Mondelez International,Inc. Class A609207105COM7,500$301,000thousands by filing date
VENTAS INC COM92276F100REIT4,719$297,000thousands by filing date
ETSY INC29786A106COM32,400$282,000thousands by filing date
BXP INC COM101121101REIT2,200$280,000thousands by filing date
STATE STR CORP COM857477103Stock3,840$225,000thousands by filing date
SEMPRA COM816851109Stock2,000$208,000thousands by filing date
Altria Group Inc02209S103COM3,300$207,000thousands by filing date

Amendment chain

FilingRoleFiledAcceptedIngested
13F-HR 0001085146-16-003726this filing2016-05-13acceptance time not in the bulk data set