SIGMA ALDRICH CORP

CUSIP: 826552101 Class: COM

D.A. DAVIDSON & CO.'s Holding History (CIK: 0001080107)

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

Q3 2015
Shares 65 Value ($000) $9 Avg Close — Range —
Q2 2015
Shares 76 Value ($000) $10 Avg Close — Range —
Q1 2015
Shares 260 Value ($000) $35 Avg Close — Range —
Q4 2014
Shares 381 Value ($000) $51 Avg Close — Range —
Q3 2014
Shares 1,399 Value ($000) $189 Avg Close — Range —
Q2 2014
Shares 4,303 Value ($000) $435 Avg Close — Range —
Q1 2014
Shares 5,115 Value ($000) $476 Avg Close — Range —
Q4 2013
Shares 5,161 Value ($000) $483 Avg Close — Range —
Q3 2013
Shares 2,430 Value ($000) $205 Avg Close — Range —
Q2 2013
Shares 2,341 Value ($000) $186 Avg Close — Range —