DRIEHAUS CAPITAL MANAGEMENT LLC Information

25 EAST ERIE ST, CHICAGO, Illinois, 60611, (312) 587-3800

Report Date: 03/31/2013

Position Statistics:

Total Positions 579
New Positions 132
Increased Positions 235
Decreased Positions 337
Positions with Activity 572
Sold Out Positions 141
Total Mkt Value
(in $ millions)
2,101

Sector Weighting

Basic Materials 4.11%
Capital Goods 6.43%
Conglomerates 1.78%
Consumer Cyclical 6.17%
Consumer/Non-Cyclical 3.88%
Energy 12.2%
Financial 5.48%
Healthcare 12.78%
Services 21.25%
Technology 19.02%
Transportation 2.93%
Utilities 3.91%

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

235 INCREASED Positions as of 03/31/2013

Company Class Value of Shares ($1,000s) Change in Value ($1,000s) Change (%) Shares Held
ITAU UNIBANCO HLDG SA SPON ADR REP PFD 23,241 8,878 61.81 1,452,548
EXONE CO COM 18,933 18,933 New 429,314
VIPSHOP HLDGS LTD SPONSORED ADR 16,500 15,119 1,094.61 490,496
ENERGY TRANSFER EQUITY L P COM UT LTD PTN 16,245 2,091 14.78 270,300
MEAD JOHNSON NUTRITION CO COM 16,124 9,024 127.09 191,114
INTUITIVE SURGICAL INC COM NEW 15,575 794 5.37 32,552
SPDR GOLD TRUST GOLD SHS 15,480 15,480 New 115,000
INTERACTIVE INTELLIGENCE GROUP COM 15,352 12,936 535.33 320,099
TARGA RESOURCES PARTNERS LP COM UNIT 14,496 12,204 532.54 293,500
SPECTRANETICS CORP COM 14,378 1,290 9.85 744,589
MRC GLOBAL INC COM 14,259 5,515 63.07 430,528
AEGERION PHARMACEUTICALS INC COM 13,910 3,105 28.74 228,183
ENERGY TRANSFER PRTNRS L P UNIT LTD PARTN 13,488 2,150 18.96 261,600
FOMENTO ECONOMICO MEXICANO SAB SPON ADR UNITS 13,338 6,598 97.87 121,314
MARKWEST ENERGY PARTNERS L P UNIT LTD PARTN 13,266 258 1.99 192,621
ACADIA HEALTHCARE COMPANY INC COM 12,794 5,631 78.62 390,766
ATLAS ENERGY LP COM UNITS LP 12,784 12,784 New 246,900
ACCESS MIDSTREAM PARTNERS L P UNIT 12,277 12,277 New 275,817
FIESTA RESTAURANT GROUP INC COM 12,050 7,247 150.87 356,308
TARGA RES CORP COM 11,795 11,795 New 174,173

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