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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)		 1,619

Sector Weighting

Basic Materials 4.92%
Capital Goods 9.67%
Conglomerates 1.4%
Consumer Cyclical 8.4%
Consumer/Non-Cyclical 2.44%
Energy 7.28%
Financial 20.6%
Healthcare 10.73%
Services 15.44%
Technology 15.01%
Transportation 3.5%
Utilities 0.61%

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

285 Positions as of 03/31/2013

Company Class Value of Shares ($1,000s) Change in Value ($1,000s) Change (%) Shares Held
ACADIA HEALTHCARE COMPANY INC COM -5,274 Sold Out 0
ADOBE SYS INC COM -3,819 Sold Out 0
AFFILIATED MANAGERS GROUP COM -37,255 Sold Out 0
ALPHA NATURAL RESOURCES INC COM -4,224 Sold Out 0
AMERICAN CAPITAL AGENCY CORP COM -4,012 Sold Out 0
ARBITRON INC COM -4,679 Sold Out 0
AUTODESK INC COM -11,423 Sold Out 0
BAXTER INTL INC COM -7,509 Sold Out 0
BERKSHIRE HATHAWAY INC DEL CL B NEW -16,625 Sold Out 0
CAPITAL ONE FINL CORP COM -46,764 Sold Out 0
CELANESE CORP DEL COM SER A -8,372 Sold Out 0
CERES INC COM -144 Sold Out 0
CHICAGO BRIDGE & IRON CO N V N Y REGISTRY SH -22,069 Sold Out 0
CLEARWIRE CORP NEW CL A -13,680 Sold Out 0
CLIFFS NAT RES INC COM -10,165 Sold Out 0
COBALT INTL ENERGY INC COM -2,647 Sold Out 0
COMVERSE INC COM -590 Sold Out 0
CONCUR TECHNOLOGIES INC COM -12,196 Sold Out 0
CORENERGY INFRASTRUCTURE TR IN COM -2,593 Sold Out 0
COSTCO WHSL CORP NEW COM -7,893 Sold Out 0