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ALYESKA INVESTMENT GROUP, L.P. Information

77 WEST WACKER DRIVE, CHICAGO, Illinois, 60601, (312) 899-7902

Report Date: 03/31/2013

Position Statistics:

Total Positions 285
New Positions 126
Increased Positions 139
Decreased Positions 146
Positions with Activity 285
Sold Out Positions 83
Total Mkt Value
(in $ millions)		 1,647

Sector Weighting

Basic Materials 4.93%
Capital Goods 9.58%
Conglomerates 1.4%
Consumer Cyclical 8.41%
Consumer/Non-Cyclical 2.45%
Energy 7.21%
Financial 20.83%
Healthcare 10.64%
Services 15.53%
Technology 14.91%
Transportation 3.48%
Utilities 0.61%

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

139 INCREASED Positions as of 03/31/2013

Company Class Value of Shares ($1,000s) Change in Value ($1,000s) Change (%) Shares Held
VELTI PLC ST HELIER SHS 56 56 New 30,940
LIPOSCIENCE INC COM 239 239 New 41,250
ANTHERA PHARMACEUTICALS INC COM 344 344 New 565,277
SILVER SPRING NETWORKS INC COM 421 421 New 25,300
SPDR SERIES TRUST S&P OILGAS EXP 459 459 New 7,500
ZAIS FINL CORP COM 700 700 New 35,178
ARBOR RLTY TR INC COM 722 722 New 100,000
MA COM TECHNOLOGY SOLUTIONS COM 774 774 New 57,321
TETRAPHASE PHARMACEUTICALS INC COM 819 819 New 100,000
MGIC INVT CORP WIS COM 872 872 New 143,640
ALLEGHENY TECHNOLOGIES INC COM 885 885 New 29,724
FIVE BELOW INC COM 973 973 New 24,703
ENANTA PHARMACEUTICALS INC COM 1,052 1,052 New 50,363
BP PLC SPONSORED ADR 1,074 1,074 New 25,000
GLADSTONE LD CORP COM 1,108 1,108 New 66,000
CVR ENERGY INC COM 1,266 1,266 New 19,900
RDA MICROELECTRONICS INC SPONSORED ADR 1,284 1,284 New 125,000
ATRICURE INC COM 1,461 1,461 New 161,027
HALLIBURTON CO COM 1,584 1,584 New 35,000
EVERBANK FINL CORP COM 1,667 1,667 New 101,200