SIGMA ALDRICH CORP

CUSIP: 826552101 Class: COM

STEPHENS INC /AR/'s Holding History (CIK: 0000757657)

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

Q4 2013
Shares 3,684 Value ($000) $346 Avg Close — Range —
Q3 2013
Shares 3,919 Value ($000) $334 Avg Close — Range —
Q2 2013
Shares 3,915 Value ($000) $315 Avg Close — Range —