SIGMA ALDRICH CORP

CUSIP: 826552101 Class: COM

PRIVATE TRUST CO NA's Holding History (CIK: 0001277557)

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

Q3 2014
Shares 167 Value ($000) $23 Avg Close — Range —
Q2 2014
Shares 130 Value ($000) $13 Avg Close — Range —
Q1 2014
Shares 100 Value ($000) $9 Avg Close — Range —
Q4 2013
Shares 100 Value ($000) $9 Avg Close — Range —
Q3 2013
Shares 225 Value ($000) $19 Avg Close — Range —
Q2 2013
Shares 125 Value ($000) $10 Avg Close — Range —
Q1 2013
Shares 125 Value ($000) $10 Avg Close — Range —