CASTLEARK MANAGEMENT LLC Information

1 N WACKER DR, CHICAGO, Illinois, 60606, (312) 456-9682

Report Date: 03/31/2014

Position Statistics

Total Positions 370
New Positions 55
Increased Positions 141
Decreased Positions 128
Positions with Activity 269
Sold Out Positions 60
Total Mkt Value (in $ millions) 3,538

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

Sector Weighting

Basic Materials 5.76%
Capital Goods 5.32%
Conglomerates 0.23%
Consumer Cyclical 8.53%
Consumer/Non-Cyclical 3.77%
Energy 15.42%
Financial 6.68%
Healthcare 9.29%
Services 12.13%
Technology 22.21%
Transportation 8.26%
Utilities 1.79%

370 Positions as of 03/31/2014

Company Class Value of Shares ($1,000s) ▼ Change in Value ($1,000s) Change (%) Shares Held
PENN VA CORP COM 11,085 1,093 10.94 742,957
POLYONE CORP COM 10,974 1,702 18.36 268,962
SALIX PHARMACEUTICALS INC COM 10,850 1,687 18.42 82,624
ITT CORP NEW COM NEW 10,789 1,541 16.66 225,856
LYONDELLBASELL INDUSTRIES N V SHS - A - 10,768 -7,379 (40.67) 98,200
MARCHEX INC CL B 10,158 10,158 New 884,817
HALLIBURTON CO COM 10,016 -814 (7.51) 137,880
SPECTRUM BRANDS HLDGS INC COM 9,808 9,808 New 119,081
HONDA MOTOR LTD AMERN SHS 9,755 New 277,300
PROOFPOINT INC COM 9,663 -451 (4.46) 268,800
VERINT SYS INC COM 9,635 9,635 New 203,150
ATRICURE INC COM 9,631 3,893 67.85 568,222
ENERGY TRANSFER PRTNRS L P UNIT LTD PARTN 9,602 New 163,360
KAR AUCTION SVCS INC COM 9,553 1,321 16.05 314,350
ICG GROUP INC COM 9,519 1,542 19.32 567,950
HEARTLAND EXPRESS INC COM 9,500 3,229 51.49 414,475
SPX CORP COM 9,485 1,462 18.22 90,424
JETBLUE AIRWAYS CORP COM 9,481 1,446 18.00 848,770
INTEGRATED DEVICE TECHNOLOGY COM 9,358 458 5.14 691,677
ICONIX BRAND GROUP INC COM 9,287 2,482 36.47 217,444