SIGMA ALDRICH CORP

CUSIP: 826552101 Class: COM

WILKINS INVESTMENT COUNSEL INC's Holding History (CIK: 0001276853)

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

Q3 2015
Shares 43,649 Value ($000) $6,064 Avg Close — Range —
Q2 2015
Shares 44,349 Value ($000) $6,180 Avg Close — Range —
Q1 2015
Shares 49,679 Value ($000) $6,868 Avg Close — Range —
Q4 2014
Shares 52,254 Value ($000) $7,173 Avg Close — Range —
Q3 2014
Shares 52,800 Value ($000) $7,181 Avg Close — Range —
Q2 2014
Shares 53,250 Value ($000) $5,404 Avg Close — Range —
Q1 2014
Shares 53,750 Value ($000) $5,019 Avg Close — Range —
Q4 2013
Shares 56,650 Value ($000) $5,326 Avg Close — Range —
Q3 2013
Shares 58,150 Value ($000) $4,960 Avg Close — Range —
Q2 2013
Shares 58,750 Value ($000) $4,725 Avg Close — Range —