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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 (2014Q4)
Portfolio Summary: 332 holdings with a total value of $686,664,000.
#
Name
Shares
Value ($)
%
Options
Notes
301 COPART INC 6,600 241,000 0.04%
302 CONCHO RESOURCES 2,393 239,000 0.03%
303 MOELIS & CO 6,712 234,000 0.03%
304 TRIPADVISOR INC 3,071 229,000 0.03%
305 E M C CORP MASS COM 7,641 227,000 0.03%
306 SEATTLE GENETICS INC 6,991 225,000 0.03%
307 KEYW HLDG CORP 20,954 218,000 0.03%
308 EBAY INC 3,884 218,000 0.03%
309 AVAGO TECHNOLOGIES LTD SHS 2,100 211,000 0.03%
310 UNITED MICROELECTRONICS CORP 91,400 207,000 0.03%
311 JOY GLOBAL INCORPORATED 4,423 206,000 0.03%
312 DIGITALGLOBE INC 6,622 205,000 0.03%
313 ARUBA NETWORKS INC 11,118 202,000 0.03%
314 FORD MTR CO DEL 10,437 162,000 0.02%
315 FORBES ENERGY SERVICES LTD 87,298 106,000 0.02%
316 UR ENERGY INC 100,000 87,000 0.01%
317 SIMULATIONS PLUS INC 11,584 77,000 0.01%
318 BIOLASE INC 23,803 63,000 0.01%
319 SEMILEDS CORP 54,000 59,000 0.01%
320 SUMMER INFANT INC 18,021 59,000 0.01%
321 CHEMBIO DIAGNOSTICS INC COM NEW 14,388 56,000 0.01%
322 AEHR TEST SYSTEMS 21,662 55,000 0.01%
323 LANTRONIX INC 27,491 52,000 0.01%
324 EXCO RESOURCES INC 23,808 52,000 0.01%
325 Mad Catz Interactive 115,867 49,000 0.01%
326 Ipass Inc 35,396 48,000 0.01%
327 DYNASIL CORP AMER 33,061 48,000 0.01%
328 STR HOLDINGS INC 34,448 47,000 0.01%
329 INTEST CORP 10,856 46,000 0.01%
330 GIGPEAK INC 32,413 39,000 0.01%
331 HALCON RESOURCES CORP 12,538 22,000 0.00%
332 GRNHNTR ENRGY 15,662 11,000 0.00%
Page 7 of 7

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001172661-15-000179, filed 2015.01.27).

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.