DRIEHAUS CAPITAL MANAGEMENT LLC Information

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

Report Date: 12/31/2013

Position Statistics

Total Positions 587
New Positions 171
Increased Positions 294
Decreased Positions 287
Positions with Activity 581
Sold Out Positions 141
Total Mkt Value (in $ millions) 2,413

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

Sector Weighting

Basic Materials 2.43%
Capital Goods 4.1%
Conglomerates 0.8%
Consumer Cyclical 6.4%
Consumer/Non-Cyclical 4.32%
Energy 10%
Financial 8.12%
Healthcare 8.84%
Services 21.05%
Technology 20.23%
Transportation 3.94%
Utilities 4.15%

294 INCREASED Positions as of 12/31/2013

Company Class Value of Shares ($1,000s) Change in Value ($1,000s) ▲ Change (%) Shares Held
POWELL INDS INC COM 2,223 2 .08 34,632
ERA GROUP INC COM 1,374 3 .20 48,284
PATRICK INDS INC COM 5,357 6 .11 126,253
SPDR INDEX SHS FDS DJ INTL RL ETF 546 19 3.62 12,889
MEDIDATA SOLUTIONS INC COM 21,575 48 .22 415,307
STAAR SURGICAL CO COM PAR $0.01 3,042 61 2.04 173,835
ACCELERON PHARMA INC COM 7,575 70 .93 197,219
GT ADVANCED TECHNOLOGIES INC COM 488 77 18.87 30,192
ENERGY RECOVERY INC COM 94 94 New 18,600
ARIAD PHARMACEUTICALS INC COM 101 101 New 14,000
TRANSITION THERAPEUTICS INC COM NEW 342 168 96.43 61,098
AMERICAN EAGLE ENERGY CORP COM NEW 173 173 New 23,556
BARRETT BUSINESS SERVICES INC COM 2,644 183 7.45 45,425
MITEL NETWORKS CORP COM 189 189 New 21,000
OCEANEERING INTL INC COM 2,404 202 9.18 32,580
URANIUM RES INC COM PAR$0.001NEW 223 223 New 74,901
BOULDER BRANDS INC COM 9,799 225 2.35 560,251
MORGAN STANLEY COM NEW 8,173 232 2.92 265,713
TESLA MTRS INC COM 8,340 238 2.94 42,095
REEDS INC COM 3,296 239 7.84 608,132