ESSEX INVESTMENT MANAGEMENT CO LLC Information

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

Report Date: 03/31/2013

Position Statistics:

Total Positions 391
New Positions 69
Increased Positions 126
Decreased Positions 245
Positions with Activity 371
Sold Out Positions 63
Total Mkt Value
(in $ millions)
598

Sector Weighting

Basic Materials 6.42%
Capital Goods 5.83%
Conglomerates 1.92%
Consumer Cyclical 2.61%
Consumer/Non-Cyclical 2.8%
Energy 8.78%
Financial 11.81%
Healthcare 14.36%
Services 15.3%
Technology 25.16%
Transportation 3.54%
Utilities 1.32%

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

371 Activity Positions as of 03/31/2013

Company Class Value of Shares ($1,000s) Change in Value ($1,000s) Change (%) Shares Held
SIBANYE GOLD LTD SPONSORED ADR -16 Sold Out 0
SINA CORP ORD -1,547 Sold Out 0
SIRIUS XM RADIO INC COM -788 Sold Out 0
SPDR GOLD TRUST GOLD SHS -2,777 Sold Out 0
SUPERVALU INC COM -180 Sold Out 0
SUPPORT COM INC COM -990 Sold Out 0
TILE SHOP HLDGS INC COM -641 Sold Out 0
VELTI PLC ST HELIER SHS -19 Sold Out 0
VOCUS INC COM -716 Sold Out 0
WISDOMTREE INVTS INC COM -243 Sold Out 0
XYLEM INC COM -235 Sold Out 0

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