SIGMA ALDRICH CORP

CUSIP: 826552101 Class: COM

RiverFront Investment Group, LLC's Holding History (CIK: 0001469751)

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

Q3 2010
Shares 54,052 Value ($000) $3,264 Avg Close — Range —
Q2 2010
Shares 53,850 Value ($000) $2,683 Avg Close — Range —
Q1 2010
Shares 49,089 Value ($000) $2,634 Avg Close — Range —