Essex Investment Mgmt Holdings in 3rd Qtr: 13F Alert

The following is an analysis of Essex Investment Management Company Inc as of September 30, according to a filing with the U.S. Securities and Exchange Commission on 10/25/2011.

Top Positions by Market Value 
Company Name                 Ticker      Market Value      Current     Change
                                            (USD $)       Position  In Position
Apple Inc                    AAPL US       21,003,868       55,082        2,554
Randgold Resources Ltd-ADR   GOLD US       16,205,629      167,552       60,495
Royal Gold Inc               RGLD US       15,246,216      237,999      102,294
Celgene Corp                 CELG US       15,239,023      246,148       34,920
Westport Innovations Inc     WPRT US       13,845,175      478,575     -117,151
Google Inc-Cl A              GOOG US       13,525,465       26,261        3,211
Acacia Research - Acacia Tec ACTG US       12,438,432      345,608       14,376
Caliper Life Sciences Inc    CALP US       11,819,122    1,128,856      -80,460
Ulta Salon Cosmetics & Fragr ULTA US       11,704,467      188,084      -13,465
Goldcorp Inc                 GG US         11,671,928      255,739      -19,566
 
 
Top New Buys by Market Value 
Company Name                 Ticker      Market Value      Current     Change
                                            (USD $)       Position  In Position
STAAR Surgical Co            STAA US        6,549,130      839,632      839,632
Newmont Mining Corp          NEM US         6,483,598      102,996      102,996
Advisory Board Co/The        ABCO US        5,722,972       88,687       88,687
PMC - Sierra Inc             PMCS US        5,325,238      890,508      890,508
Manhattan Associates Inc     MANH US        5,209,703      157,488      157,488
 
 
Top Sell Outs by Market Value 
Company Name                 Ticker         MV Change      Current     Change
                                            (USD $)       Position  In Position
OmniVision Technologies Inc  OVTI US      -10,904,302            0     -313,252
Interface Inc-Class A        IFSIA US      -9,189,399            0     -474,414
VASCO Data Security Intl     VDSI US       -8,387,216            0     -673,672
Dendreon Corp                DNDN US       -8,343,532            0     -211,550
Hanger Orthopedic Group Inc  HGR US        -8,071,430            0     -329,850
 
 
Top Position Increases by Market Value 
Company Name                 Ticker         MV Change      Current     Change
                                            (USD $)       Position  In Position
Mellanox Technologies Ltd    MLNX US        7,550,366      290,827      239,527
Royal Gold Inc               RGLD US        7,297,974      237,999      102,294
Randgold Resources Ltd-ADR   GOLD US        7,207,488      167,552       60,495
Impax Laboratories Inc       IPXL US        4,691,563      264,737      262,448
Gilead Sciences Inc          GILD US        4,245,991      111,864      109,586
 
 
Top Position Decreases By Market Value 
Company Name                 Ticker         MV Change      Current     Change
                                            (USD $)       Position  In Position
Sodastream International Ltd SODA US      -11,153,861      316,373      -38,996
Transcend Services Inc       TRCR US      -10,122,497      232,150     -290,312
SINA Corp                    SINA US       -9,676,208       66,664      -72,145
RealD Inc                    RLD US        -9,212,698      558,162      -58,833
57Th Street General Acq Corp CRMB US       -8,308,885      784,244      -91,984
 
 
SOURCE: SEC 13F-HR 
FILER: Essex Investment Management Company Inc 
QUARTER ENDED: 09/30/2011 
SEC RECEIVED: 10/25/2011 

To contact the reporter on this story: Kimberly Williams in Princeton at kwilliams15@bloomberg.net.

To contact the editor responsible for this story: Rodney Yap at ryap@bloomberg.net.

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