ESSEX INVESTMENT MANAGEMENT CO LLC Information

125 HIGH STREET, BOSTON, Massachusetts, 02110, (617) 482-4870

Report Date: 12/31/2014

Position Statistics

Total Positions 394
New Positions 38
Increased Positions 105
Decreased Positions 230
Positions with Activity 335
Sold Out Positions 63
Total Mkt Value (in $ millions) 745

Institutional Holdings information is filed by major institutions on form 13-F with the Securities and Exchange Commission.

Sector Weighting

Basic Materials 2.99%
Capital Goods 4.51%
Conglomerates 0.75%
Consumer Cyclical 1.25%
Consumer/Non-Cyclical 1.79%
Energy 4.36%
Financial 9.01%
Healthcare 23.09%
Services 9.64%
Technology 29.13%
Transportation 3.97%
Utilities 0.3%

335 Activity Positions as of 12/31/2014

Company Class Value of Shares ($1,000s) ▼ Change in Value ($1,000s) Change (%) Shares Held
WILLDAN GROUP INC COM 606 -328 (35.14) 38,448
POWERSECURE INTL INC COM 604 -96 (13.73) 47,072
ISHARES TR RUS 2000 GRW ETF 596 596 New 3,915
BLUEBIRD BIO INC COM 587 587 New 4,427
MYR GROUP INC DEL COM 576 50 9.59 18,946
CALGON CARBON CORP COM 572 49 9.38 25,913
DOLLAR TREE INC COM 555 -4 (0.65) 7,008
PENN VA CORP COM 552 -88 (13.69) 74,037
ASA GOLD AND PRECIOUS MTLS LMT SHS 541 541 New 51,000
MEDNAX INC COM 537 -2 (0.31) 7,393
NEW GOLD INC CDA COM 514 514 New 145,300
WATTS WATER TECHNOLOGIES INC CL A 512 44 9.44 9,403
KINROSS GOLD CORP COM NO PAR 505 -1,154 (69.58) 221,300
SEADRILL PARTNERS LLC COMUNIT REP LB 483 -373 (43.56) 37,478
EURONET WORLDWIDE INC COM 478 -2 (0.35) 8,457
WHITEWAVE FOODS CO COM 477 -2 (0.36) 10,375
ALPHATEC HOLDINGS INC COM 477 -76 (13.73) 333,579
ALLIANCE DATA SYSTEMS CORP COM 476 -3 (0.68) 1,617
ORION ENERGY SYSTEMS INC COM 470 -74 (13.68) 149,717
ALNYLAM PHARMACEUTICALS INC COM 469 -78 (14.3) 4,008


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