WESTFIELD CAPITAL MANAGEMENT CO LP

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$13 Billion is the total value of WESTFIELD CAPITAL MANAGEMENT CO LP's 251 reported holdings in Q3 2017. The portfolio turnover from Q2 2017 to Q3 2017 was 31.9% .

All

			Value		Shares		↓ Weighting
AAPL	Sell	APPLE INC	$325,933,000	+4.8%	2,114,798	-2.0%	2.50%	-5.5%
STE	Sell	STERIS PLC	$162,731,000	-10.7%	1,840,853	-17.7%	1.25%	-19.6%
UNH	Sell	UNITEDHEALTH GROUP INC	$138,732,000	+5.3%	708,357	-0.3%	1.07%	-5.0%
ABT	Sell	ABBOTT LABS	$124,163,000	+1.0%	2,326,895	-8.0%	0.95%	-9.0%
CHTR	Sell	CHARTER COMMUNICATIONS INC Ncl a	$105,402,000	-4.1%	290,027	-11.1%	0.81%	-13.6%
MTD	Sell	METTLER TOLEDO INTERNATIONAL	$103,532,000	-6.6%	165,344	-12.3%	0.80%	-15.9%
3106PS	Sell	DELPHI AUTOMOTIVE PLC	$100,374,000	-9.0%	1,020,057	-19.0%	0.77%	-18.0%
NWL	Sell	NEWELL BRANDS INC	$99,694,000	-32.1%	2,336,397	-14.7%	0.77%	-38.8%
PYPL	Sell	PAYPAL HLDGS INC	$98,985,000	+15.9%	1,545,911	-2.8%	0.76%	+4.4%
ICE	Sell	INTERCONTINENTAL EXCHANGE IN	$93,621,000	-3.7%	1,362,753	-7.6%	0.72%	-13.3%
MTN	Sell	VAIL RESORTS INC	$90,973,000	-5.9%	398,794	-16.3%	0.70%	-15.2%
LGFB	Sell	LIONS GATE ENTMNT CORPcl b non vtg	$89,743,000	+11.1%	2,822,998	-8.1%	0.69%	+0.1%
NKTR	Sell	NEKTAR THERAPEUTICS	$87,178,000	+18.2%	3,632,419	-3.8%	0.67%	+6.5%
BIIB	Sell	BIOGEN INC	$80,689,000	-7.3%	257,692	-19.6%	0.62%	-16.4%
TDG	Sell	TRANSDIGM GROUP INC	$80,395,000	-13.0%	314,473	-8.5%	0.62%	-21.5%
CSGP	Sell	COSTAR GROUP INC	$79,475,000	-0.5%	296,272	-2.3%	0.61%	-10.4%
MSCC	Sell	MICROSEMI CORP	$79,219,000	-0.8%	1,538,840	-9.8%	0.61%	-10.7%
RHT	Sell	RED HAT INC	$70,771,000	+15.2%	638,382	-0.5%	0.54%	+4.0%
R	Sell	RYDER SYS INC	$70,227,000	+15.5%	830,603	-1.7%	0.54%	+4.1%
BERY	Sell	BERRY GLOBAL GROUP INC	$64,618,000	-0.7%	1,140,658	-0.1%	0.50%	-10.6%
IBP	Sell	INSTALLED BLDG PRODS INC	$59,740,000	-9.9%	921,915	-26.4%	0.46%	-18.8%
MSCI	Sell	MSCI INC	$57,823,000	+9.5%	494,635	-3.6%	0.44%	-1.3%
TRU	Sell	TRANSUNION	$57,735,000	-22.6%	1,221,642	-29.0%	0.44%	-30.3%
XLRN	Sell	ACCELERON PHARMA INC	$57,534,000	+12.5%	1,541,638	-8.4%	0.44%	+1.4%
TSS	Sell	TOTAL SYS SVCS INC	$54,393,000	+11.3%	830,430	-1.1%	0.42%	+0.2%
FTNT	Sell	FORTINET INC	$53,861,000	-4.5%	1,502,823	-0.3%	0.41%	-13.9%
JBT	Sell	JOHN BEAN TECHNOLOGIES CORP	$52,208,000	+0.5%	516,398	-2.6%	0.40%	-9.5%
MTG	Sell	MGIC INVT CORP WIS	$51,367,000	+8.2%	4,099,552	-3.3%	0.40%	-2.5%
SIX	Sell	SIX FLAGS ENTMT CORP NEW	$48,490,000	-47.4%	795,695	-48.6%	0.37%	-52.7%
BLDR	Sell	BUILDERS FIRSTSOURCE INC	$47,688,000	+16.1%	2,650,809	-1.1%	0.37%	+4.6%
ERI	Sell	ELDORADO RESORTS INC	$43,329,000	+0.9%	1,689,249	-21.4%	0.33%	-9.0%
AXTA	Sell	AXALTA COATING SYS LTD	$42,872,000	-11.1%	1,482,420	-1.5%	0.33%	-20.0%
NXST	Sell	NEXSTAR MEDIA GROUP INCcl a	$41,942,000	-9.7%	673,228	-13.3%	0.32%	-18.7%
FLS	Sell	FLOWSERVE CORP	$41,665,000	-10.0%	978,274	-1.8%	0.32%	-18.8%
OMCL	Sell	OMNICELL INC	$40,749,000	-1.5%	798,212	-16.8%	0.31%	-11.1%
PRTA	Sell	PROTHENA CORP PLC	$40,383,000	+9.1%	623,489	-8.9%	0.31%	-1.9%
ON	Sell	ON SEMICONDUCTOR CORP	$37,730,000	+29.9%	2,042,769	-1.2%	0.29%	+16.9%
GRA	Sell	GRACE W R & CO DEL NEW	$37,626,000	-1.3%	521,495	-1.5%	0.29%	-11.1%
DAN	Sell	DANA INCORPORATED	$37,379,000	+23.6%	1,336,871	-1.3%	0.29%	+11.2%
CR	Sell	CRANE CO	$37,155,000	-0.6%	464,495	-1.4%	0.28%	-10.7%
AOS	Sell	SMITH A O	$36,755,000	+3.8%	618,464	-1.6%	0.28%	-6.6%
BFAM	Sell	BRIGHT HORIZONS FAM SOL IN D	$36,185,000	-14.5%	419,731	-23.5%	0.28%	-23.0%
BMCH	Sell	BMC STK HLDGS INC	$35,848,000	-4.5%	1,679,076	-2.3%	0.28%	-14.1%
ODFL	Sell	OLD DOMINION FGHT LINES INC	$34,305,000	-3.6%	311,552	-16.6%	0.26%	-13.2%
EWBC	Sell	EAST WEST BANCORP INC	$33,434,000	+1.3%	559,290	-0.8%	0.26%	-8.5%
PTC	Sell	PTC INC	$31,867,000	+0.8%	566,216	-1.2%	0.24%	-8.9%
CAVM	Sell	CAVIUM INC	$31,473,000	-32.0%	477,295	-35.9%	0.24%	-38.6%
FCB	Sell	FCB FINL HLDGS INCcl a	$31,038,000	-3.8%	642,600	-4.9%	0.24%	-13.5%
WNS	Sell	WNS HOLDINGS LTDspon adr	$29,768,000	+3.6%	815,560	-2.4%	0.23%	-6.5%
LBRDA	Sell	LIBERTY BROADBAND CORP	$29,168,000	+9.2%	309,705	-0.5%	0.22%	-1.8%
BYD	Sell	BOYD GAMING CORP	$28,093,000	+4.2%	1,078,445	-0.8%	0.22%	-6.1%
DATA	Sell	TABLEAU SOFTWARE INCcl a	$28,150,000	+5.0%	375,891	-14.1%	0.22%	-5.7%
ACRS	Sell	ACLARIS THERAPEUTICS INC	$28,183,000	-16.8%	1,091,944	-12.6%	0.22%	-25.3%
MIDD	Sell	MIDDLEBY CORP	$27,716,000	-55.8%	216,246	-58.1%	0.21%	-60.2%
ZEN	Sell	ZENDESK INC	$26,038,000	-11.9%	894,475	-16.0%	0.20%	-20.6%
PVH	Sell	PVH CORP	$25,870,000	+1.6%	205,221	-7.8%	0.20%	-8.3%
CYBR	Sell	CYBERARK SOFTWARE LTD	$25,182,000	-20.3%	614,190	-2.9%	0.19%	-28.3%
DXCM	Sell	DEXCOM INC	$24,387,000	-63.5%	498,450	-45.4%	0.19%	-67.1%
NBIX	Sell	NEUROCRINE BIOSCIENCES INC	$23,476,000	-63.6%	383,097	-72.6%	0.18%	-67.2%
BID	Sell	SOTHEBYS	$22,927,000	-15.9%	497,220	-2.1%	0.18%	-24.1%
NVRO	Sell	NEVRO CORP	$22,530,000	+19.1%	247,910	-2.5%	0.17%	+7.5%
WSO	Sell	WATSCO INC	$21,864,000	-0.5%	135,744	-4.8%	0.17%	-10.2%
PPBI	Sell	PACIFIC PREMIER BANCORP	$19,625,000	-0.3%	519,870	-2.5%	0.15%	-10.1%
MASI	Sell	MASIMO CORP	$19,561,000	-7.6%	225,979	-2.6%	0.15%	-16.7%
ULTI	Sell	ULTIMATE SOFTWARE GROUP INC	$16,420,000	-37.8%	86,605	-31.1%	0.13%	-44.0%
MATX	Sell	MATSON INC	$12,575,000	-8.3%	446,253	-2.3%	0.10%	-17.1%
CRME	Sell	CARDIOME PHARMA CORP	$10,349,000	-56.7%	4,858,454	-8.1%	0.08%	-61.3%
LITE	Sell	LUMENTUM HLDGS INC	$10,229,000	-6.5%	188,200	-1.9%	0.08%	-15.1%
STAG	Sell	STAG INDL INC	$8,672,000	-56.0%	315,702	-55.8%	0.07%	-60.1%
CSCO	Sell	CISCO SYS INC	$6,838,000	+6.0%	203,320	-1.3%	0.05%	-3.6%
OXY	Sell	OCCIDENTAL PETE CORP DEL	$6,266,000	+7.1%	97,590	-0.1%	0.05%	-4.0%
INTC	Sell	INTEL CORP	$5,997,000	+12.7%	157,477	-0.2%	0.05%	+2.2%
JKHY	Sell	HENRY JACK & ASSOC INC	$5,261,000	-43.4%	51,184	-42.8%	0.04%	-49.4%
MSI	Sell	MOTOROLA SOLUTIONS INC	$5,229,000	-2.6%	61,610	-0.4%	0.04%	-13.0%
KMB	Sell	KIMBERLY CLARK CORP	$4,713,000	-10.6%	40,047	-1.9%	0.04%	-20.0%
LMT	Sell	LOCKHEED MARTIN CORP	$4,154,000	+9.1%	13,388	-2.4%	0.03%	0.0%
HON	Sell	HONEYWELL INTL INC	$4,035,000	+5.8%	28,470	-0.5%	0.03%	-6.1%
LYV	Sell	LIVE NATION ENTERTAINMENT IN	$2,062,000	-91.8%	47,350	-93.5%	0.02%	-92.6%
WCN	Sell	WASTE CONNECTIONS INC	$978,000	-28.8%	13,986	-34.4%	0.01%	-33.3%
NGVC	Sell	NATURAL GROCERS BY VITAMIN C	$558,000	-91.2%	100,000	-86.9%	0.00%	-92.6%
GE	Sell	GENERAL ELECTRIC CO	$255,000	-30.3%	10,538	-22.2%	0.00%	-33.3%
BIDU	Exit	BAIDU INCspon adr rep a	$0	–	-1,600	-100.0%	-0.00%	–
TWLO	Exit	TWILIO INCcl a	$0	–	-12,900	-100.0%	-0.00%	–
RCII	Exit	RENT A CTR INC NEW	$0	–	-27,800	-100.0%	-0.00%	–
HDSN	Exit	HUDSON TECHNOLOGIES INC	$0	–	-40,000	-100.0%	-0.00%	–
CB	Exit	CHUBB LIMITED	$0	–	-15,140	-100.0%	-0.02%	–
CMCSA	Exit	COMCAST CORP NEWcl a	$0	–	-89,770	-100.0%	-0.03%	–
KREF	Exit	KKR REAL ESTATE FIN TR INC	$0	–	-200,565	-100.0%	-0.04%	–
BAH	Exit	BOOZ ALLEN HAMILTON HLDG CORcl a	$0	–	-141,670	-100.0%	-0.04%	–
PAYX	Exit	PAYCHEX INC	$0	–	-84,345	-100.0%	-0.04%	–
CLX	Exit	CLOROX CO DEL	$0	–	-36,770	-100.0%	-0.04%	–
IPG	Exit	INTERPUBLIC GROUP COS INC	$0	–	-209,945	-100.0%	-0.04%	–
DAL	Exit	DELTA AIR LINES INC DEL	$0	–	-102,205	-100.0%	-0.05%	–
WDC	Exit	WESTERN DIGITAL CORP	$0	–	-75,450	-100.0%	-0.06%	–
NSA	Exit	NATIONAL STORAGE AFFILIATES	$0	–	-329,528	-100.0%	-0.06%	–
TSRO	Exit	TESARO INC	$0	–	-56,641	-100.0%	-0.07%	–
IPGP	Exit	IPG PHOTONICS CORP	$0	–	-89,170	-100.0%	-0.11%	–
UNIT	Exit	UNITI GROUP INC	$0	–	-552,760	-100.0%	-0.12%	–
ALKS	Exit	ALKERMES PLC	$0	–	-262,795	-100.0%	-0.13%	–
ERIC	Exit	ERICSSONadr b sek 10	$0	–	-2,138,282	-100.0%	-0.13%	–
VIAB	Exit	VIACOM INC NEWcl b	$0	–	-463,920	-100.0%	-0.13%	–
MKTX	Exit	MARKETAXESS HLDGS INC	$0	–	-79,889	-100.0%	-0.14%	–
HXL	Exit	HEXCEL CORP NEW	$0	–	-327,094	-100.0%	-0.15%	–
K	Exit	KELLOGG CO	$0	–	-271,403	-100.0%	-0.16%	–
HAIN	Exit	HAIN CELESTIAL GROUP INC	$0	–	-499,686	-100.0%	-0.16%	–
FRC	Exit	FIRST REP BK SAN FRANCISCO C	$0	–	-199,610	-100.0%	-0.17%	–
ORLY	Exit	O REILLY AUTOMOTIVE INC NEW	$0	–	-102,435	-100.0%	-0.19%	–
CXP	Exit	COLUMBIA PPTY TR INC	$0	–	-1,037,765	-100.0%	-0.20%	–
BC	Exit	BRUNSWICK CORP	$0	–	-397,035	-100.0%	-0.21%	–
SBNY	Exit	SIGNATURE BK NEW YORK N Y	$0	–	-176,338	-100.0%	-0.22%	–
SAVE	Exit	SPIRIT AIRLS INC	$0	–	-496,256	-100.0%	-0.22%	–
CCI	Exit	CROWN CASTLE INTL CORP NEW	$0	–	-265,551	-100.0%	-0.23%	–
EFII	Exit	ELECTRONICS FOR IMAGING INC	$0	–	-575,545	-100.0%	-0.23%	–
SNI	Exit	SCRIPPS NETWORKS INTERACT IN	$0	–	-758,420	-100.0%	-0.44%	–
SCHW	Exit	SCHWAB CHARLES CORP NEW	$0	–	-2,279,960	-100.0%	-0.84%	–
TSO	Exit	TESORO CORP	$0	–	-1,053,329	-100.0%	-0.84%	–
MCD	Exit	MCDONALDS CORP	$0	–	-668,037	-100.0%	-0.87%	–
DIS	Exit	DISNEY WALT CO	$0	–	-1,166,661	-100.0%	-1.06%	–
DOW	Exit	DOW CHEM CO	$0	–	-2,039,836	-100.0%	-1.10%	–

Original filings

The following EDGAR filing(s) were analyzed to create this report:

View 13F-HR filed 2017-11-13

Signatures

The EDGAR filing(s) were signed by:

Brandi McMahon — Compliance Officer

Top long-term holdings

Name	Quarters owned	Latest quarter owned	Max weighting
APPLE INC COM	42	Q3 2023	4.4%
MICROSOFT CORP COM	42	Q3 2023	3.2%
VISA INC COM CL A	42	Q3 2023	1.9%
SALESFORCE INC	42	Q3 2023	1.7%
ICON PLC	42	Q3 2023	2.3%
TRANSDIGM GROUP INC COM	42	Q3 2023	2.1%
COOPER COS INC COM NEW	42	Q3 2023	1.5%
THERMO FISHER SCIENTIFIC INC C	42	Q3 2023	1.4%
FORTINET INC COM	42	Q3 2023	1.5%
UNION PACIFIC CORP	42	Q3 2023	1.3%

View WESTFIELD CAPITAL MANAGEMENT CO LP's complete holdings history.

Latest significant ownerships (13-D/G)

WESTFIELD CAPITAL MANAGEMENT CO LP Q3 2017 significant holdings filed using form 13D/G when ownership exceeds 5% of a company's total stock issue.
	Filed	Shares	Percentage
IRONWOOD PHARMACEUTICALS INC^{Sold out}	July 05, 2023	0	0.0%
Innoviva, Inc.	February 02, 2023	4,106,136	5.9%
RUSH ENTERPRISES INC \TX\^{Sold out}	July 02, 2021	0	0.0%
SITIME Corp^{Sold out}	February 01, 2021	0	0.0%
Correvio Pharma Corp.^{Sold out}	January 07, 2020	0	0.0%
MEDICINES CO /DE	January 07, 2020	1,368,720	1.7%
Cardiome Pharma Corp	May 02, 2018	4,149,244	11.9%
HEXCEL CORP /DE/^{Sold out}	August 03, 2017	0	0.0%
Huron Consulting Group Inc.^{Sold out}	April 10, 2017	0	0.0%
ARIAD PHARMACEUTICALS INC^{Sold out}	April 07, 2017	0	0.0%

View WESTFIELD CAPITAL MANAGEMENT CO LP's complete significant-ownership history.

Latest filings

Type	Filed
13F-HR	2024-05-10
SC 13G/A	2024-05-08
SC 13G/A	2024-04-04
13F-HR	2024-02-09
SC 13G/A	2024-02-02
SC 13G	2024-01-10
13F-HR	2023-11-13
13F-HR	2023-08-11
SC 13G/A	2023-07-05
13F-HR	2023-05-12

View WESTFIELD CAPITAL MANAGEMENT CO LP's complete filings history.

All filings

View complete filings history.

Compare quarters

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