Dark
Light
System
Institutional Investment Manager
ESSEX INVESTMENT MANAGEMENT CO LLC
ESSEX INVESTMENT MANAGEMENT CO LLC (CIK: 0000201772) incorporated in Delaware, located at 125 High Street, Boston, MA. Institutional holdings reported to the SEC.

Institutional Holdings (2015Q1)
Portfolio Summary: 316 holdings with a total value of $714,665,000.
#
Name
Shares
Value ($)
%
Options
Notes
51 ROYAL GOLD INC 69,421 4,381,000 0.61%
52 STARBUCKS CORP 44,868 4,249,000 0.59%
53 CHEVRON CORP NEW 37,638 3,951,000 0.55%
54 SCHWAB CHARLES CORP 124,062 3,776,000 0.53%
55 AMBARELLA INC 49,825 3,772,000 0.53%
56 ICON PLC 53,396 3,766,000 0.53%
57 PAYCHEX INC 75,398 3,741,000 0.52%
58 CDW CORP 99,541 3,707,000 0.52%
59 FLEETMATICS GROUP PLC 82,563 3,703,000 0.52%
60 UNITED RENTALS INC 40,314 3,675,000 0.51%
61 AMERICAN AIRLS GROUP INC 67,277 3,551,000 0.50%
62 PROOFPOINT INC 59,832 3,543,000 0.50%
63 HOME DEPOT INC 30,727 3,491,000 0.49%
64 MERCK & CO INC 60,387 3,471,000 0.49%
65 SPIRIT AIRLS INC 44,303 3,427,000 0.48%
66 SUNPOWER CORP 106,618 3,338,000 0.47%
67 REGENERON PHARMACEUTICALS 7,112 3,211,000 0.45%
68 ALIBABA GROUP HLDG LTD 38,041 3,167,000 0.44%
69 F5 NETWORKS INC 26,756 3,075,000 0.43%
70 ANADARKO PETE CORP 36,236 3,001,000 0.42%
71 QUANTA SVCS INC 104,387 2,978,000 0.42%
72 VIACOM INC NEW 42,626 2,911,000 0.41%
73 ZOETIS INC 62,669 2,901,000 0.41%
74 TRIPLEPOINT VENTURE GROWTH B COM 202,018 2,850,000 0.40%
75 SVB FINANCIAL GROUP 22,360 2,841,000 0.40%
76 OCCIDENTAL PETE CORP DEL 37,697 2,752,000 0.39%
77 ACADIA COMPANY COM 35,040 2,509,000 0.35%
78 AFFYMETRIX INCOC-CAP STK CASH MGREFF 4/1/16 1 OLDUSD 14.00 PER SHARE 199,755 2,509,000 0.35%
79 BARRICK GOLD CORP 225,566 2,472,000 0.35%
80 MICROSOFT CORP 59,873 2,434,000 0.34%
81 SUCAMPO PHARMACEUTICALS INCORPORATED CLASS A 154,540 2,405,000 0.34%
82 T2 BIOSYSTEMS INCORPORATED 148,027 2,297,000 0.32%
83 COLGATE PALMOLIVE CO 32,954 2,285,000 0.32%
84 PROCTER AND GAMBLE CO 27,703 2,270,000 0.32%
85 E M C CORP MASS COM 87,753 2,243,000 0.31%
86 ATRICURE INC 109,110 2,236,000 0.31%
87 AT&T INC 67,022 2,188,000 0.31%
88 UNITEDHEALTH GROUP INC 17,628 2,085,000 0.29%
89 VERIZON COMMUNICATIONS INC 42,614 2,072,000 0.29%
90 BARRACUDA NETWORKS INC 51,549 1,983,000 0.28%
91 JOHNSON & JOHNSON 19,343 1,946,000 0.27%
92 ASA GOLD AND PRECIOUS MTLS L 191,220 1,927,000 0.27%
93 SPECTRANETICS CORP 54,719 1,902,000 0.27%
94 NOVARTIS A G 19,201 1,893,000 0.26%
95 APOGEE ENTERPRISES INC COM 43,092 1,862,000 0.26%
96 GALLAGHER ARTHUR J & CO 39,734 1,858,000 0.26%
97 GOLDCORP INC NEW 101,096 1,832,000 0.26%
98 SNAP ON INC 12,014 1,767,000 0.25%
99 MARSH & MCLENNAN COS INC 31,324 1,757,000 0.25%
100 INFOBLOX INC 72,565 1,732,000 0.24%
Page 2 of 7

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001172661-15-000983, filed 2015.05.06).

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.