SIGMA ALDRICH CORP

CUSIP: 826552101 Class: COM

TRUST CO OF VIRGINIA /VA's Holding History (CIK: 0001135439)

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

Q3 2015
Shares 2,730 Value ($000) $379 Avg Close — Range —
Q2 2015
Shares 2,730 Value ($000) $380 Avg Close — Range —
Q1 2015
Shares 2,730 Value ($000) $377 Avg Close — Range —
Q4 2014
Shares 2,730 Value ($000) $375 Avg Close — Range —
Q3 2014
Shares 2,600 Value ($000) $354 Avg Close — Range —
Q2 2014
Shares 2,600 Value ($000) $264 Avg Close — Range —
Q1 2014
Shares 2,600 Value ($000) $243 Avg Close — Range —
Q4 2013
Shares 2,600 Value ($000) $244 Avg Close — Range —
Q3 2013
Shares 2,600 Value ($000) $222 Avg Close — Range —
Q2 2013
Shares 2,600 Value ($000) $209 Avg Close — Range —