SIGMA ALDRICH CORP

CUSIP: 826552101 Class: COM

D L CARLSON INVESTMENT GROUP INC's Holding History (CIK: 0001021117)

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

Q3 2015
Shares 3,610 Value ($000) $502 Avg Close — Range —
Q2 2015
Shares 4,210 Value ($000) $587 Avg Close — Range —
Q1 2015
Shares 6,095 Value ($000) $843 Avg Close — Range —
Q4 2014
Shares 6,775 Value ($000) $930 Avg Close — Range —
Q3 2014
Shares 7,400 Value ($000) $1,006 Avg Close — Range —
Q2 2014
Shares 27,170 Value ($000) $2,757 Avg Close — Range —
Q1 2014
Shares 27,595 Value ($000) $2,577 Avg Close — Range —
Q4 2013
Shares 28,815 Value ($000) $2,709 Avg Close — Range —
Q3 2013
Shares 35,075 Value ($000) $2,992 Avg Close — Range —
Q2 2013
Shares 35,450 Value ($000) $2,851 Avg Close — Range —