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Institutional Investment Manager
WESTFIELD CAPITAL MANAGEMENT CO LP
WESTFIELD CAPITAL MANAGEMENT CO LP (CIK: 0001177719) incorporated in Delaware, located at One Financial Center, Boston, MA. Institutional holdings reported to the SEC.

Institutional Holdings (2014Q3)
Portfolio Summary: 300 holdings with a total value of $16,381,776,000.
#
Name
Shares
Value ($)
%
Options
Notes
51 NUCOR CORP 42,250 2,293,000 0.01%
52 CISCO SYS INC 91,150 2,294,000 0.01%
53 FOMENTO ECONOMICO MEXICANO S 28,650 2,637,000 0.02%
54 MARATHON PETE CORP 32,200 2,726,000 0.02%
55 MONDELEZ INTL INC 83,329 2,855,000 0.02%
56 TIME WARNER INC 38,040 2,861,000 0.02%
57 GLAXOSMITHKLINE PLC 65,490 3,011,000 0.02%
58 PFIZER INC 102,555 3,033,000 0.02%
59 Medtronic Inc 50,254 3,113,000 0.02%
60 PROCTER AND GAMBLE CO 40,517 3,393,000 0.02%
61 OCCIDENTAL PETE CORP DEL 40,030 3,849,000 0.02%
62 A10 NETWORKS INC 443,560 4,041,000 0.02%
63 BRISTOL MYERS SQUIBB CO 90,170 4,615,000 0.03%
64 NATIONAL GEN HLDGS CORP COM 285,260 4,818,000 0.03%
65 GARMIN LTD 101,520 5,278,000 0.03%
66 CHEMOCENTRYX INC 1,366,793 6,151,000 0.04%
67 CUMULUS MEDIA INC 1,529,706 6,165,000 0.04%
68 EXTENDED STAY AMER INC 267,840 6,359,000 0.04%
69 CARDIOME PHARMA CORP 730,926 6,527,000 0.04%
70 CITIGROUPINC 133,600 6,923,000 0.04%
71 INFOBLOX INC 481,408 7,101,000 0.04%
72 AMERICAN INTL GROUP INC 152,040 8,213,000 0.05%
73 CORNERSTONE ONDEMAND INC 242,075 8,330,000 0.05%
74 CONSTELLATION BRANDS INC 100,060 8,721,000 0.05%
75 MALIBU BOATS INCORPORATED COM CLASS A 496,905 9,203,000 0.06%
76 NORD ANGLIA EDUCATION INC 690,664 11,741,000 0.07%
77 RIVERBED TECHNOLOGY INC 637,183 11,817,000 0.07%
78 TRINSEO S A 799,170 12,571,000 0.08%
79 RACKSPACE HOSTING INC 389,060 12,664,000 0.08%
80 ENSCO PLC 309,140 12,771,000 0.08%
81 STEELCASE INC 810,127 13,116,000 0.08%
82 SK TELECOM LTD 439,371 13,331,000 0.08%
83 FIVE BELOW INC 348,134 13,790,000 0.08%
84 ATMEL CORP 1,734,420 14,014,000 0.09%
85 DEMANDWARE INC 276,287 14,069,000 0.09%
86 MOHAWK INDS 105,332 14,201,000 0.09%
87 BGC PARTNERS INC 1,975,910 14,681,000 0.09%
88 ALBEMARLE CORP 249,905 14,719,000 0.09%
89 ADVANCED ENERGY INDS COM 799,600 15,024,000 0.09%
90 DEL FRISCOS RESTAURANT GROUP COM 788,340 15,089,000 0.09%
91 LPL FINL HLDGS INC 358,385 16,504,000 0.10%
92 CROCS INC 1,374,677 17,293,000 0.11%
93 ISHARES RUSSELL 2000 GROWTH ETF 133,550 17,320,000 0.11%
94 CADENCE DESIGN SYSTEM INC 1,035,681 17,824,000 0.11%
95 KAPSTONE PAPER & PACKAGING CRP COM 640,882 17,925,000 0.11%
96 SOTHEBYS 508,135 18,151,000 0.11%
97 AMC NETWORKS INC CL A 312,513 18,257,000 0.11%
98 BENCHMARK ELECTRS INC 828,514 18,401,000 0.11%
99 Nice Systems LTD Sponsored 459,318 18,736,000 0.11%
100 COSTAR GROUP 121,667 18,924,000 0.12%
Page 2 of 6

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001085146-14-002222, filed 2014.11.12).

From 2023-01-03 onward, the SEC requires values to be reported in nearest dollars. Earlier filings reported values in thousands; therefore, positions shown as $0 in older filings may represent actual values between $0–$999.