SIGMA ALDRICH CORP

CUSIP: 826552101 Class: COM

DRIEHAUS CAPITAL MANAGEMENT LLC's Holding History (CIK: 0000938206)

Note: Option positions (PUT/CALL) are excluded.

Q1 2015
Shares 101,000 Value ($000) $13,963 Avg Close — Range —
Q4 2014
Shares 101,000 Value ($000) $13,864 Avg Close — Range —