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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 2016-06-30, filed 2016-08-12, with 257 holding rows worth $12,120,551,000.

Accession
0001085146-16-004272
Filed
2016-08-12
Accepted by EDGAR
acceptance time not in the bulk data set
Ingested
Source
SEC quarterly data set

Original filing

13F report for Q2 2016

A holdings report, 257 entries on the cover page, a total value of $12,120,551,000 stated on the cover page (in dollars after the unit check, H1), rows summing to $12,120,551,000 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 Inc037833100COM2,901,345$277,369,000thousands by filing date
JAZZ PHARMACEUTICALS PLC SHS USDG50871105Stock1,784,762$252,205,000thousands by filing date
Microsoft Corp594918104COM4,778,678$244,525,000thousands by filing date
CHARTER COMMUNICATIONS INC N16119P108COM923,824$211,223,000thousands by filing date
STERIS PLCG84720104SHS USD3,035,201$208,670,000thousands by filing date
CONSTELLATION BRANDS INC CL A21036P108Stock1,235,277$204,315,000thousands by filing date
Bristol-Myers Squibb Company110122108COM2,719,547$200,023,000thousands by filing date
META PLATFORMS INC CL A30303M102COM1,640,768$187,507,000thousands by filing date
NEWELL BRANDS INC COM651229106Stock3,482,069$169,124,000thousands by filing date
Alphabet Inc. Reg. Shares A02079K305COM237,572$167,139,000thousands by filing date
Alphabet Inc. Reg. Shares C02079K107COM238,174$164,840,000thousands by filing date
CELGENE CORP151020104COM1,620,873$159,867,000thousands by filing date
Visa Inc92826C839COM2,112,297$156,669,000thousands by filing date
Dow Chemical Company260543103COM3,121,845$155,187,000thousands by filing date
TEVA PHARMACEUTICAL INDS LTD SPONSORED ADS881624209ADR2,946,519$148,004,000thousands by filing date
Lockheed Martin Corporation539830109COM575,235$142,756,000thousands by filing date
Salesforce.com, Inc79466L302COM1,740,751$138,233,000thousands by filing date
Danaher Corporation235851102COM1,349,211$136,270,000thousands by filing date
UNITED AIRLS HLDGS INC COM910047109Stock3,313,048$135,967,000thousands by filing date
THE COOPER COMPANIES216648402COM NEW785,363$134,745,000thousands by filing date
DOLLAR TREE INC COM256746108Stock1,401,140$132,043,000thousands by filing date
PALO ALTO NETWORKS INC697435105COM1,066,805$130,833,000thousands by filing date
Amazon.com, Inc023135106COM179,719$128,611,000thousands by filing date
TJX Companies Inc872540109COM1,663,588$128,479,000thousands by filing date
NIELSEN HOLDINGS PLCG6518L108SHS EUR2,438,945$126,752,000thousands by filing date
Union Pacific Corporation907818108COM1,442,860$125,890,000thousands by filing date
Home Depot, Inc437076102COM981,562$125,336,000thousands by filing date
TWENTY FIRST CENTY FOX INC90130A101CL A4,617,995$124,917,000thousands by filing date
CELANESE CORP DEL COM150870103Stock1,849,316$121,038,000thousands by filing date
ServiceNow,Inc.81762P102COM1,659,951$110,221,000thousands by filing date
United Parcel Service,Inc. Class B911312106COM1,021,174$110,001,000thousands by filing date
MARRIOTT INTL INC NEW CL A571903202Stock1,633,056$108,533,000thousands by filing date
PRICELINE GRP INC741503403COM NEW84,643$105,669,000thousands by filing date
KROGER CO COM501044101Stock2,841,154$104,526,000thousands by filing date
LENNOX INTL INC COM526107107Stock716,127$102,120,000thousands by filing date
MasterCard, Inc57636Q104COM1,091,748$96,139,000thousands by filing date
VAIL RESORTS INC COM91879Q109Stock675,901$93,430,000thousands by filing date
CME Group Inc. Class A12572Q105COM958,218$93,330,000thousands by filing date
EQUINIX INC COM29444U700REIT240,655$93,309,000thousands by filing date
COSTAR GROUP INC COM22160N109Stock426,121$93,176,000thousands by filing date
Costco Wholesale Corporation22160K105COM593,085$93,138,000thousands by filing date
SYNCHRONYFINL87165B103STOK3,583,629$90,594,000thousands by filing date
TRANSDIGM GROUP INC COM893641100Stock335,874$88,567,000thousands by filing date
ASSURANT INC COM04621X108Stock1,006,364$86,859,000thousands by filing date
Thermo Fisher Scientific Inc.883556102COM586,384$86,644,000thousands by filing date
Starbucks Corporation855244109COM1,511,279$86,324,000thousands by filing date
METTLER TOLEDO INTERNATIONAL COM592688105Stock235,478$85,931,000thousands by filing date
ARAMARK COM03852U106Stock2,443,625$81,666,000thousands by filing date
LAM RESEARCH CORP512807108COM943,411$79,303,000thousands by filing date
ARIAD PHARMACEUTICALS INC04033A100COM10,575,638$78,154,000thousands by filing date
LKQ CORP COM501889208Stock2,455,028$77,824,000thousands by filing date
ICON PUB LTD CO SHSG4705A100Stock1,079,645$75,586,000thousands by filing date
ALIGN TECHNOLOGY INC COM016255101Stock892,968$71,929,000thousands by filing date
KELLANOVA487836108COM855,694$69,867,000thousands by filing date
MSCI INC COM55354G100Stock895,159$69,035,000thousands by filing date
GRACE W R & CO DEL NEW COM38388F108Stock935,978$68,523,000thousands by filing date
QUEST DIAGNOSTICS INC COM74834L100Stock834,546$67,940,000thousands by filing date
HD SUPPLY HLDGS INC40416M105COM1,906,698$66,391,000thousands by filing date
ULTA BEAUTY INC COM90384S303Stock271,803$66,222,000thousands by filing date
MIDDLEBYCORP596278101STOK570,199$65,715,000thousands by filing date
IHS INC451734107CL A566,671$65,513,000thousands by filing date
ON SEMICONDUCTOR CORP COM682189105Stock7,253,093$63,972,000thousands by filing date
FORTINET INC COM34959E109Stock1,997,059$63,087,000thousands by filing date
POLYONE CORP73179P106COM1,769,227$62,348,000thousands by filing date
VULCAN MATLS CO COM929160109Stock513,109$61,758,000thousands by filing date
NEXSTAR MEDIA GROUP INC COMMON STOCK65336K103Stock1,283,796$61,083,000thousands by filing date
BROADCOM LTDY09827109SHS385,820$59,956,000thousands by filing date
BIOGEN INC COM09062X103Stock245,663$59,406,000thousands by filing date
AFFILIATED MANAGERS GROUP COM008252108Stock421,088$59,277,000thousands by filing date
NEUROCRINE BIOSCIENCES INC64125C109COM1,275,575$57,975,000thousands by filing date
MICROSEMI CORP595137100COM1,771,088$57,879,000thousands by filing date
Charles Schwab Corp808513105COM2,285,518$57,846,000thousands by filing date
DEXCOM INC COM252131107Stock710,001$56,324,000thousands by filing date
SABRE CORP COM78573M104Stock2,099,585$56,248,000thousands by filing date
ALKERMES PLCG01767105SHS1,272,500$54,997,000thousands by filing date
TRANSUNION COM89400J107Stock1,643,851$54,970,000thousands by filing date
TEAM HEALTH HOLDINGS INC87817A107COMMON STOCK1,323,590$53,830,000thousands by filing date
TOTAL SYS SVCS INC891906109COM1,006,731$53,467,000thousands by filing date
VANTIV INC92210H105CL A935,657$52,958,000thousands by filing date
RED HAT INC756577102COM727,661$52,828,000thousands by filing date
WRIGHT MED GROUP N VN96617118ORD SHS3,025,577$52,554,000thousands by filing date
LIBERTY INTERACTIVE CORP53071M104INT COM SER A2,034,811$51,623,000thousands by filing date
QLIK TECHNOLOGIES INC74733T105COM1,714,038$50,701,000thousands by filing date
BAKER HUGHES INC057224107COM1,122,733$50,669,000thousands by filing date
BAXTER INTL INC071813109COM1,112,610$50,312,000thousands by filing date
ALLEGIANT TRAVEL CO01748X102COM326,617$49,482,000thousands by filing date
MERRIMACK PHARMACEUTICALS IN590328100COM9,074,557$48,912,000thousands by filing date
HALLIBURTON CO COM406216101Stock1,077,006$48,778,000thousands by filing date
MONOLITHIC PWR SYS INC COM609839105Stock701,438$47,922,000thousands by filing date
COGNIZANT TECHNOLOGY SOLUTIONS CL A192446102Stock813,708$46,577,000thousands by filing date
SNAP ON INC COM833034101Stock291,642$46,027,000thousands by filing date
PACIRA BIOSCIENCES INC COM695127100Stock1,333,868$44,991,000thousands by filing date
TELEFLEX INCORPORATED879369106COM250,933$44,493,000thousands by filing date
EAST WEST BANCORP INC COM27579R104Stock1,283,965$43,886,000thousands by filing date
MASIMO CORP COM574795100Stock825,464$43,349,000thousands by filing date
THE ULTIMATE SOFTWARE GROUP IN90385D107COM203,867$42,871,000thousands by filing date
BRIGHT HORIZONS FAM SOL IN DEL COM109194100Stock640,474$42,470,000thousands by filing date
LULULEMON ATHLETICA INC550021109COM574,130$42,405,000thousands by filing date
WATSCO INC COM942622200Stock297,908$41,913,000thousands by filing date
SPLUNK INC848637104COM765,947$41,499,000thousands by filing date
INTEGRA LIFESCIENCES HLDGS C457985208COM NEW515,190$41,102,000thousands by filing date
SIX FLAGS ENTERTAINMENT CORP83001A102COM701,433$40,648,000thousands by filing date
FORTUNE BRANDS INNOVATIONS INC COM34964C106Stock699,353$40,541,000thousands by filing date
CROWN CASTLE INC COM22822V101REIT399,130$40,484,000thousands by filing date
CHEMTURA CORP163893209COM NEW1,512,917$39,911,000thousands by filing date
INSTALLED BLDG PRODS INC45780R101COM1,082,337$39,278,000thousands by filing date
KNOLL INC498904200COM NEW1,591,163$38,633,000thousands by filing date
DENTSPLY SIRONA INC24906P109COM622,074$38,593,000thousands by filing date
DOLLAR GEN CORP COM256677105Stock409,795$38,521,000thousands by filing date
JBT MAREL CORPORATION477839104COM628,965$38,505,000thousands by filing date
SCRIPPS NETWORKS INTERACT IN811065101CL A COM609,785$37,971,000thousands by filing date
BUILDERS FIRSTSOURCE INC COM12008R107Stock3,333,316$37,500,000thousands by filing date
ELECTRONICS FOR IMAGING INC286082102COM869,450$37,421,000thousands by filing date
AXALTA COATING SYS LTD COMG0750C108Stock1,376,630$36,522,000thousands by filing date
MACQUARIE INFRASTRUCTURE HOLDI55608B105COMMON UNITS490,887$36,350,000thousands by filing date
OLD DOMINION FREIGHT LINE INC COM679580100Stock582,910$35,155,000thousands by filing date
RAYMOND JAMES FINL INC COM754730109Stock702,529$34,635,000thousands by filing date
JACK IN THE BOX INC466367109COM402,993$34,625,000thousands by filing date
BERRY GLOBAL GROUP INC08579W103COM884,320$34,356,000thousands by filing date
INTERPUBLIC GROUP COS460690100COM1,477,262$34,125,000thousands by filing date
STARWOOD PPTY TR INC COM85571B105REIT1,610,106$33,361,000thousands by filing date
BANKUNITED INC06652K103COM1,057,210$32,477,000thousands by filing date
BREAD FINANCIAL HOLDINGS INC018581108COM162,526$31,842,000thousands by filing date
FIRST REPUBLIC BANK/SAN FRANCI33616C100COM453,999$31,775,000thousands by filing date
SCOTTS MIRACLE-GRO CO810186106CL A448,918$31,384,000thousands by filing date
STAG INDUSTRIAL INC85254J102COM1,316,706$31,351,000thousands by filing date
SMITH A O CORP COM831865209Stock352,553$31,063,000thousands by filing date
AGILENT TECHNOLOGIES INC COM00846U101Stock683,279$30,310,000thousands by filing date
HUNT J B TRANS SVCS INC COM445658107Stock370,712$30,002,000thousands by filing date
CBRE GROUP INC CL A12504L109Stock1,114,748$29,519,000thousands by filing date
SCHEIN HENRY INC806407102COM166,766$29,484,000thousands by filing date
HURON CONSULTING GROUP INC447462102COM486,976$29,423,000thousands by filing date
NORFOLK SOUTHN CORP COM655844108Stock337,000$28,689,000thousands by filing date
BROADSOFT INC11133B409COM696,514$28,578,000thousands by filing date
MADISON SQUARE GRDN SPRT CORP CL A55825T103Stock162,001$27,947,000thousands by filing date
EXPEDIA GROUP INC COM NEW30212P303Stock251,278$26,711,000thousands by filing date
DAVE & BUSTERS ENTMT INC238337109COM567,890$26,572,000thousands by filing date
ZENDESK INC98936J101COM1,006,245$26,545,000thousands by filing date
VERIFONE SYS INC92342Y109COM1,420,317$26,333,000thousands by filing date
RUSH ENTERPRISES INC CL A781846209Stock1,216,674$26,219,000thousands by filing date
OIL STS INTL INC678026105COM780,855$25,675,000thousands by filing date
FLOWSERVE CORP34354P105COM554,990$25,069,000thousands by filing date
NICE LTD SPONSORED ADR653656108ADR391,368$24,989,000thousands by filing date
SONIC CORP835451105COM915,970$24,777,000thousands by filing date
SPIRIT AIRLS INC848577102COM547,180$24,552,000thousands by filing date
STARZ85571Q102COM SER A809,030$24,206,000thousands by filing date
CYBERARK SOFTWARE LTD SHSM2682V108Stock489,450$23,782,000thousands by filing date
EASTMAN CHEM CO COM277432100Stock347,192$23,574,000thousands by filing date
CRITEO S A SPONS ADS226718104ADR505,860$23,229,000thousands by filing date
HEXCEL CORP NEW428291108COM557,121$23,199,000thousands by filing date
MUELLER WTR PRODS INC COM SER A624758108Stock2,030,036$23,183,000thousands by filing date
ARRIS INTL INC SHSG0551A103SHS1,090,460$22,856,000thousands by filing date
SUMMIT MATERIALS INC CLASS A86614U100CL A1,077,190$22,039,000thousands by filing date
TEXAS ROADHOUSE INC COM882681109Stock479,935$21,885,000thousands by filing date
NORD ANGLIA EDUCATION INCG6583A102SHS1,029,965$21,773,000thousands by filing date
NETSUITE INC64118Q107COM295,700$21,527,000thousands by filing date
RYDER SYS INC COM783549108Stock344,935$21,089,000thousands by filing date
KIRBY CORP497266106COM334,705$20,882,000thousands by filing date
CARDIOME PHARMA CORP14159U301COM NO PAR3,909,092$20,015,000thousands by filing date
JONES LANG LASALLE INC COM48020Q107Stock203,121$19,794,000thousands by filing date
COMMVAULT SYS INC COM204166102Stock455,547$19,675,000thousands by filing date
CEB INC125134106COM309,022$19,060,000thousands by filing date
LINEAR TECHNOLOGY CORP535678106COM403,125$18,757,000thousands by filing date
PVH CORPORATION COM693656100Stock195,400$18,413,000thousands by filing date
MATSON INC COM57686G105Stock569,421$18,387,000thousands by filing date
FOUR CORNERS PPTY TR INC35086T109COM882,870$18,178,000thousands by filing date
NAVIGATOR HLDGS LTD SHSY62132108Stock1,566,582$18,016,000thousands by filing date
CULLEN FROST BANKERS INC COM229899109Stock281,001$17,908,000thousands by filing date
LIONS GATE ENTMNT CORP535919203COM NEW882,695$17,857,000thousands by filing date
HEICO CORP NEW422806208CL A325,995$17,490,000thousands by filing date
BGC PARTNERS INC05541T101CL A2,000,645$17,426,000thousands by filing date
NEKTAR THERAPEUTICS640268108COM1,212,050$17,247,000thousands by filing date
INTERXION HOLDING N.VN47279109SHS465,620$17,172,000thousands by filing date
PROOFPOINT INC743424103COM268,969$16,969,000thousands by filing date
BRUNSWICK CORP117043109COM371,819$16,851,000thousands by filing date
DELPHI AUTOMOTIVE PLCG27823106COMMON STOCK-FO269,020$16,841,000thousands by filing date
ACCELERON PHARMA INC00434H108COM494,200$16,793,000thousands by filing date
SIGNATURE BANK82669G104COM133,041$16,619,000thousands by filing date
ESSENT GROUP LTD COMG3198U102Stock761,900$16,617,000thousands by filing date
NXP SEMICONDUCTORS N V COMN6596X109Stock211,349$16,557,000thousands by filing date
AMERICAN WOODMARK CORP030506109COM248,288$16,481,000thousands by filing date
ORBOTECH LTDM75253100ORD643,895$16,452,000thousands by filing date
ACORDA THERAPEUTICS INC00484M106COM629,678$16,060,000thousands by filing date
MARKETAXESS HLDGS INC57060D108COM108,270$15,742,000thousands by filing date
ALNYLAM PHARMACEUTICALS INC COM02043Q107Stock276,767$15,358,000thousands by filing date
STORE CAP CORP862121100COM516,690$15,217,000thousands by filing date
PINNACLE FOODS INC DEL72348P104COM304,620$14,101,000thousands by filing date
COMMUNITY USD0.0120369C106COM652,620$13,796,000thousands by filing date
Comcast Corp20030N101COM211,035$13,757,000thousands by filing date
BRUKER CORP116794108COM587,237$13,354,000thousands by filing date
GENPACT LIMITED SHSG3922B107Stock467,835$12,557,000thousands by filing date
CHUY'S HOLDINGS INC171604101COMMON STOCK362,274$12,538,000thousands by filing date
Applied Materials,Inc.038222105COM513,165$12,301,000thousands by filing date
SHOPIFY INC82509L107CL A SUB VTG SHS396,595$12,199,000thousands by filing date
FLEETMATICS GROUP PLCG35569105COM268,300$11,625,000thousands by filing date
COLONY STARWOOD19625X102Common Stock370,250$11,263,000thousands by filing date
MASTEC INC COM576323109Stock493,751$11,021,000thousands by filing date
RAPID7 INC COM753422104Stock808,573$10,172,000thousands by filing date
MARTEN TRANSPORT LTD573075108COM509,379$10,086,000thousands by filing date
NATIONAL HEALTH INVS INC COM63633D104REIT129,175$9,700,000thousands by filing date
SITEONE LANDSCAPE SUPPLY INC82982L103COM268,490$9,126,000thousands by filing date
PROTHENA CORP PLC SHSG72800108Stock237,880$8,316,000thousands by filing date
OMNICELL COM COM68213N109Stock239,271$8,190,000thousands by filing date
HENRY JACK & ASSOC INC426281101COM92,484$8,071,000thousands by filing date
AT&T Inc00206R102COM183,530$7,930,000thousands by filing date
Cisco Systems,Inc.17275R102COM273,895$7,858,000thousands by filing date
GENERAL ELEC CO369604103COM249,450$7,853,000thousands by filing date
PAYCHEX INC704326107COM128,669$7,656,000thousands by filing date
ADTRAN INC00738A106COMMON STOCK350,915$6,545,000thousands by filing date
Johnson & Johnson478160104COM52,495$6,368,000thousands by filing date
DR PEPPER SNAPPLE GROUP INC26138E109COM63,279$6,115,000thousands by filing date
Procter & Gamble Co742718109COM72,012$6,097,000thousands by filing date
Pfizer Inc.717081103COM170,676$6,010,000thousands by filing date
KIMBERLY-CLARK CORP COM494368103Stock42,897$5,897,000thousands by filing date
Marine Harvest ASA56824R205ADR343,545$5,806,000thousands by filing date
ARCHER DANIELS MIDLAND CO COM039483102Stock134,500$5,769,000thousands by filing date
JPMorgan Chase & Co46625H100COM92,300$5,736,000thousands by filing date
FLOWERS FOODS INC COM343498101Stock302,823$5,678,000thousands by filing date
Coca-Cola Company191216100COM123,940$5,618,000thousands by filing date
PepsiCo,Inc.713448108COM52,744$5,588,000thousands by filing date
Tandem Diabetes Care, Inc.875372104COM685,588$5,169,000thousands by filing date
UnitedHealth Group Inc91324P102COM33,660$4,753,000thousands by filing date
AMERICAN CAPITAL AGENCY CORP02503X105COMMON STOCK237,170$4,701,000thousands by filing date
TARGET CORP COM87612E106Stock64,882$4,530,000thousands by filing date
Walmart Inc.931142103COM61,360$4,481,000thousands by filing date
McDonalds Corporation580135101COM37,155$4,471,000thousands by filing date
CIRRUS LOGIC INC COM172755100Stock98,243$3,811,000thousands by filing date
ORION S.A.L72967109COM214,595$3,410,000thousands by filing date
Verizon Communications Inc92343V104COM56,125$3,134,000thousands by filing date
ISHARES TR464287648RUS 2000 GRW ETF18,740$2,571,000thousands by filing date
COPART INC COM217204106Stock51,420$2,520,000thousands by filing date
WASTE CONNECTIONS INC COM94106B101Stock30,372$2,188,000thousands by filing date
ALLERGAN PLCG0177J108SHS8,495$1,963,000thousands by filing date
CVS Health Corporation126650100COM17,300$1,656,000thousands by filing date
3M CO COM88579Y101Stock9,350$1,637,000thousands by filing date
WABCO HLDGS INC92927K102COM17,250$1,580,000thousands by filing date
Walt Disney Co254687106COM15,390$1,505,000thousands by filing date
NORTHERN TR CORP COM665859104Stock12,096$801,000thousands by filing date
Merck & Co.,Inc.58933Y105COM12,159$700,000thousands by filing date
Schlumberger Limited806857108COM8,424$666,000thousands by filing date
iShares Silver Trust46428Q109COM35,700$638,000thousands by filing date
EXXON MOBIL CORP30231G102COM6,368$597,000thousands by filing date
IDEXX LABS INC COM45168D104Stock6,400$594,000thousands by filing date
LINDBLAD EXPEDITIONS HLDGS I535219109COM50,800$489,000thousands by filing date
THE CAMPBELLS COMPANY COM134429109Stock6,000$399,000thousands by filing date
CSX Corporation126408103COM15,000$391,000thousands by filing date
NEW MEDIA INVT GROUP INC64704V106COM21,500$389,000thousands by filing date
Boeing Company097023105COM2,800$364,000thousands by filing date
VENTAS INC COM92276F100REIT4,719$344,000thousands by filing date
Mondelez International,Inc. Class A609207105COM7,500$341,000thousands by filing date
ECOLAB INC COM278865100Stock2,750$326,000thousands by filing date
ETSY INC29786A106COM32,400$311,000thousands by filing date
International Business Machines Corporation459200101COM2,000$304,000thousands by filing date
Chubb LimitedH1467J104COM2,317$303,000thousands by filing date
ARALEZ PHARMACEUTICALS INC03852X100COM89,000$294,000thousands by filing date
Medtronic PlcG5960L103COM2,978$258,000thousands by filing date
STATE STR CORP COM857477103Stock3,840$207,000thousands by filing date

Amendment chain

FilingRoleFiledAcceptedIngested
13F-HR 0001085146-16-004272this filing2016-08-12acceptance time not in the bulk data set